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Posted to commits@qpid.apache.org by jd...@apache.org on 2022/01/30 00:15:24 UTC
[qpid-dispatch] 03/05: DISPATCH-1783 add cpp-stub unittest mocking/stubbing tool
This is an automated email from the ASF dual-hosted git repository.
jdanek pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/qpid-dispatch.git
commit cb059f95979680f8d773092cae1d5569db8216c8
Author: Jiri Daněk <jd...@redhat.com>
AuthorDate: Wed Dec 22 19:27:52 2021 +0100
DISPATCH-1783 add cpp-stub unittest mocking/stubbing tool
---
LICENSE | 5 +
pom.xml | 1 +
tests/cpp-stub/CMakeLists.txt | 23 +
tests/cpp-stub/LICENSE.txt | 21 +
tests/cpp-stub/addr_any.h | 285 +++
tests/cpp-stub/addr_pri.h | 182 ++
tests/cpp-stub/cpp_stub.h | 362 +++
tests/cpp-stub/elfio.hpp | 4893 +++++++++++++++++++++++++++++++++++++++++
8 files changed, 5772 insertions(+)
diff --git a/LICENSE b/LICENSE
index 6ab2e63..768c4c8 100644
--- a/LICENSE
+++ b/LICENSE
@@ -210,6 +210,11 @@ tests/c_unittests/doctest.h), which is distributed under the MIT licence.
A copy of its licence can be found at: tests/c_unittests/LICENSE.txt
+This product bundles a copy of CPP-STUB within its test code (found at
+tests/cpp-stub), which is distributed under the MIT licence.
+
+A copy of its licence can be found at: tests/cpp-stub/LICENSE.txt
+
The tests run a http2 server which uses a Python ASGI web microframework
called Quart which is distributed under the MIT licence.
A copy of Quart's licence can be found at: tests/quart/LICENSE
diff --git a/pom.xml b/pom.xml
index 91b89a3..c5d0ce4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -121,6 +121,7 @@
<exclude>libwebsockets/**</exclude>
<exclude>tools/scraper/test_data/**</exclude>
<exclude>**/doctest.h</exclude>
+ <exclude>**/cpp-stub/*</exclude>
<exclude>**/*_pb2*</exclude>
</excludes>
</configuration>
diff --git a/tests/cpp-stub/CMakeLists.txt b/tests/cpp-stub/CMakeLists.txt
new file mode 100644
index 0000000..97fe13d
--- /dev/null
+++ b/tests/cpp-stub/CMakeLists.txt
@@ -0,0 +1,23 @@
+##
+## Licensed to the Apache Software Foundation (ASF) under one
+## or more contributor license agreements. See the NOTICE file
+## distributed with this work for additional information
+## regarding copyright ownership. The ASF licenses this file
+## to you under the Apache License, Version 2.0 (the
+## "License"); you may not use this file except in compliance
+## with the License. You may obtain a copy of the License at
+##
+## http://www.apache.org/licenses/LICENSE-2.0
+##
+## Unless required by applicable law or agreed to in writing,
+## software distributed under the License is distributed on an
+## "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+## KIND, either express or implied. See the License for the
+## specific language governing permissions and limitations
+## under the License.
+##
+
+add_library(cpp-stub cpp_stub.h)
+
+set_target_properties(cpp-stub PROPERTIES LINKER_LANGUAGE CXX)
+target_include_directories(cpp-stub INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})
diff --git a/tests/cpp-stub/LICENSE.txt b/tests/cpp-stub/LICENSE.txt
new file mode 100644
index 0000000..6a89fb7
--- /dev/null
+++ b/tests/cpp-stub/LICENSE.txt
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 coolxv
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/tests/cpp-stub/addr_any.h b/tests/cpp-stub/addr_any.h
new file mode 100644
index 0000000..43ad439
--- /dev/null
+++ b/tests/cpp-stub/addr_any.h
@@ -0,0 +1,285 @@
+#ifndef __ADDR_ANY_H__
+#define __ADDR_ANY_H__
+
+// Copyright (c) 2019 coolxv
+//
+// Distributed under the MIT Software License
+// See accompanying file LICENSE.txt or copy at
+// https://opensource.org/licenses/MIT
+
+//linux
+#include <regex.h>
+#include <cxxabi.h>
+//c
+#include <cinttypes>
+#include <cstdio>
+#include <cstdlib>
+
+//c++
+#include <string>
+#include <map>
+//project
+#include "elfio.hpp"
+
+
+
+class AddrAny
+{
+public:
+ AddrAny()
+ {
+ m_init = get_exe_pathname(m_fullname);
+ m_baseaddr = 0;
+ }
+ AddrAny(std::string libname)
+ {
+ m_init = get_lib_pathname_and_baseaddr(libname, m_fullname, m_baseaddr);
+ }
+
+ int get_local_func_addr_symtab(std::string func_name_regex_str, std::map<std::string,void*>& result)
+ {
+ return get_func_addr(SHT_SYMTAB, STB_LOCAL, func_name_regex_str, result);
+ }
+ int get_global_func_addr_symtab(std::string func_name_regex_str, std::map<std::string,void*>& result)
+ {
+ return get_func_addr(SHT_SYMTAB, STB_GLOBAL, func_name_regex_str, result);
+ }
+ int get_weak_func_addr_symtab(std::string func_name_regex_str, std::map<std::string,void*>& result)
+ {
+ return get_func_addr(SHT_SYMTAB, STB_WEAK, func_name_regex_str, result);
+ }
+
+ int get_global_func_addr_dynsym( std::string func_name_regex_str, std::map<std::string,void*>& result)
+ {
+ return get_func_addr(SHT_DYNSYM, STB_GLOBAL, func_name_regex_str, result);
+ }
+ int get_weak_func_addr_dynsym(std::string func_name_regex_str, std::map<std::string,void*>& result)
+ {
+ return get_func_addr(SHT_DYNSYM, STB_WEAK, func_name_regex_str, result);
+ }
+
+private:
+ bool demangle(std::string& s, std::string& name) {
+ int status;
+ char* pname = abi::__cxa_demangle(s.c_str(), 0, 0, &status);
+ if (status != 0)
+ {
+ switch(status)
+ {
+ case -1: name = "memory allocation error"; break;
+ case -2: name = "invalid name given"; break;
+ case -3: name = "internal error: __cxa_demangle: invalid argument"; break;
+ default: name = "unknown error occured"; break;
+ }
+ return false;
+ }
+ name = pname;
+ free(pname);
+ return true;
+ }
+ bool get_exe_pathname( std::string& name)
+ {
+ char line[512];
+ FILE *fp;
+ uintptr_t base_addr;
+ char perm[5];
+ unsigned long offset;
+ int pathname_pos;
+ char *pathname;
+ size_t pathname_len;
+ int match = 0;
+
+ if(NULL == (fp = fopen("/proc/self/maps", "r")))
+ {
+ return false;
+ }
+
+ while(fgets(line, sizeof(line), fp))
+ {
+ if(sscanf(line, "%" PRIxPTR "-%*lx %4s %lx %*x:%*x %*d%n", &base_addr, perm, &offset, &pathname_pos) != 3) continue;
+
+ if(0 != offset) continue;
+
+ //get pathname
+ while(isspace(line[pathname_pos]) && pathname_pos < (int)(sizeof(line) - 1))
+ pathname_pos += 1;
+ if(pathname_pos >= (int)(sizeof(line) - 1)) continue;
+ pathname = line + pathname_pos;
+ pathname_len = strlen(pathname);
+ if(0 == pathname_len) continue;
+ if(pathname[pathname_len - 1] == '\n')
+ {
+ pathname[pathname_len - 1] = '\0';
+ pathname_len -= 1;
+ }
+ if(0 == pathname_len) continue;
+ if('[' == pathname[0]) continue;
+
+ name = pathname;
+ match = 1;
+ break;
+
+ }
+ fclose(fp);
+
+ if(0 == match)
+ {
+ return false;
+ }
+ else
+ {
+ return true;
+ }
+
+ }
+
+ bool get_lib_pathname_and_baseaddr(std::string pathname_regex_str, std::string& name, unsigned long& addr)
+ {
+ char line[512];
+ FILE *fp;
+ uintptr_t base_addr;
+ char perm[5];
+ unsigned long offset;
+ int pathname_pos;
+ char *pathname;
+ size_t pathname_len;
+ int match;
+ regex_t pathname_regex;
+
+ regcomp(&pathname_regex, pathname_regex_str.c_str(), 0);
+
+ if(NULL == (fp = fopen("/proc/self/maps", "r")))
+ {
+ return false;
+ }
+
+ while(fgets(line, sizeof(line), fp))
+ {
+ if(sscanf(line, "%" PRIxPTR "-%*lx %4s %lx %*x:%*x %*d%n", &base_addr, perm, &offset, &pathname_pos) != 3) continue;
+
+ //check permission
+ if(perm[0] != 'r') continue;
+ if(perm[3] != 'p') continue; //do not touch the shared memory
+
+ //check offset
+ //
+ //We are trying to find ELF header in memory.
+ //It can only be found at the beginning of a mapped memory regions
+ //whose offset is 0.
+ if(0 != offset) continue;
+
+ //get pathname
+ while(isspace(line[pathname_pos]) && pathname_pos < (int)(sizeof(line) - 1))
+ pathname_pos += 1;
+ if(pathname_pos >= (int)(sizeof(line) - 1)) continue;
+ pathname = line + pathname_pos;
+ pathname_len = strlen(pathname);
+ if(0 == pathname_len) continue;
+ if(pathname[pathname_len - 1] == '\n')
+ {
+ pathname[pathname_len - 1] = '\0';
+ pathname_len -= 1;
+ }
+ if(0 == pathname_len) continue;
+ if('[' == pathname[0]) continue;
+
+ //check pathname
+ //if we need to hook this elf?
+ match = 0;
+ if(0 == regexec(&pathname_regex, pathname, 0, NULL, 0))
+ {
+ match = 1;
+ name = pathname;
+ addr = (unsigned long)base_addr;
+ break;
+ }
+ if(0 == match) continue;
+
+ }
+ fclose(fp);
+ if(0 == match)
+ {
+ return false;
+ }
+ else
+ {
+ return true;
+ }
+
+ }
+
+ int get_func_addr(unsigned int ttype, unsigned int stype, std::string& func_name_regex_str, std::map<std::string,void*>& result)
+ {
+ // Create an elfio reader
+ ELFIO::elfio reader;
+ int count = 0;
+ regex_t pathname_regex;
+
+ if(!m_init)
+ {
+ return -1;
+ }
+
+ regcomp(&pathname_regex, func_name_regex_str.c_str(), 0);
+ // Load ELF data
+ if(!reader.load(m_fullname.c_str()))
+ {
+ return -1;
+ }
+
+ ELFIO::Elf_Half sec_num = reader.sections.size();
+ for(int i = 0; i < sec_num; ++i)
+ {
+ ELFIO::section* psec = reader.sections[i];
+ // Check section type
+ if(psec->get_type() == ttype)
+ {
+ const ELFIO::symbol_section_accessor symbols( reader, psec );
+ for ( unsigned int j = 0; j < symbols.get_symbols_num(); ++j )
+ {
+ std::string name;
+ std::string name_mangle;
+ ELFIO::Elf64_Addr value;
+ ELFIO::Elf_Xword size;
+ unsigned char bind;
+ unsigned char type;
+ ELFIO::Elf_Half section_index;
+ unsigned char other;
+
+ // Read symbol properties
+ symbols.get_symbol( j, name, value, size, bind, type, section_index, other );
+ if(type == STT_FUNC && bind == stype)
+ {
+ bool ret = demangle(name,name_mangle);
+ if(ret == true)
+ {
+ if (0 == regexec(&pathname_regex, name_mangle.c_str(), 0, NULL, 0))
+ {
+ result.insert ( std::pair<std::string,void *>(name_mangle,(void*)(value + m_baseaddr)));
+ count++;
+ }
+ }
+ else
+ {
+ if (0 == regexec(&pathname_regex, name.c_str(), 0, NULL, 0))
+ {
+ result.insert ( std::pair<std::string,void *>(name,(void*)(value + m_baseaddr)));
+ count++;
+ }
+ }
+ }
+ }
+ break;
+ }
+ }
+
+ return count;
+ }
+private:
+ bool m_init;
+ std::string m_name;
+ std::string m_fullname;
+ unsigned long m_baseaddr;
+
+};
+#endif
diff --git a/tests/cpp-stub/addr_pri.h b/tests/cpp-stub/addr_pri.h
new file mode 100644
index 0000000..f48b9e3
--- /dev/null
+++ b/tests/cpp-stub/addr_pri.h
@@ -0,0 +1,182 @@
+#ifndef __ADDR_PRI_H__
+#define __ADDR_PRI_H__
+
+// Copyright (c) 2019 coolxv
+//
+// Distributed under the MIT Software License
+// See accompanying file LICENSE.txt or copy at
+// https://opensource.org/licenses/MIT
+
+#include <utility>
+#include <type_traits>
+
+
+
+//base on C++11
+
+/**********************************************************
+ access private function
+**********************************************************/
+
+
+namespace std {
+ template <bool B, class T = void>
+ using enable_if_t = typename enable_if<B, T>::type;
+ template <class T>
+ using remove_reference_t = typename remove_reference<T>::type;
+} // std
+
+// Unnamed namespace is used to avoid duplicate symbols if the macros are used
+namespace {
+ namespace private_access_detail {
+
+ // @tparam TagType, used to declare different "get" funciton overloads for
+ // different members/statics
+ template <typename PtrType, PtrType PtrValue, typename TagType>
+ struct private_access {
+ // Normal lookup cannot find in-class defined (inline) friend functions.
+ friend PtrType get(TagType) { return PtrValue; }
+ };
+
+ } // namespace private_access_detail
+} // namespace
+
+// Used macro naming conventions:
+// The "namespace" of this macro library is PRIVATE_ACCESS, i.e. all
+// macro here has this prefix.
+// All implementation macro, which are not meant to be used directly have the
+// PRIVATE_ACCESS_DETAIL prefix.
+// Some macros have the ABCD_IMPL form, which means they contain the
+// implementation details for the specific ABCD macro.
+
+#define PRIVATE_ACCESS_DETAIL_CONCATENATE_IMPL(x, y) x##y
+#define PRIVATE_ACCESS_DETAIL_CONCATENATE(x, y) \
+ PRIVATE_ACCESS_DETAIL_CONCATENATE_IMPL(x, y)
+
+// @param PtrTypeKind E.g if we have "class A", then it can be "A::*" in case of
+// members, or it can be "*" in case of statics.
+#define PRIVATE_ACCESS_DETAIL_ACCESS_PRIVATE(Tag, Class, Type, Name, \
+ PtrTypeKind) \
+ namespace { \
+ namespace private_access_detail { \
+ /* Tag type, used to declare different get funcitons for different \
+ * members \
+ */ \
+ struct Tag {}; \
+ /* Explicit instantiation */ \
+ template struct private_access<decltype(&Class::Name), &Class::Name, \
+ Tag>; \
+ /* We can build the PtrType only with two aliases */ \
+ /* E.g. using PtrType = int(int) *; would be illformed */ \
+ using PRIVATE_ACCESS_DETAIL_CONCATENATE(Alias_, Tag) = Type; \
+ using PRIVATE_ACCESS_DETAIL_CONCATENATE(PtrType_, Tag) = \
+ PRIVATE_ACCESS_DETAIL_CONCATENATE(Alias_, Tag) PtrTypeKind; \
+ /* Declare the friend function, now it is visible in namespace scope. \
+ * Note, \
+ * we could declare it inside the Tag type too, in that case ADL would \
+ * find \
+ * the declaration. By choosing to declare it here, the Tag type remains \
+ * a \
+ * simple tag type, it has no other responsibilities. */ \
+ PRIVATE_ACCESS_DETAIL_CONCATENATE(PtrType_, Tag) get(Tag); \
+ } \
+ }
+
+#define PRIVATE_ACCESS_DETAIL_ACCESS_PRIVATE_FIELD(Tag, Class, Type, Name) \
+ PRIVATE_ACCESS_DETAIL_ACCESS_PRIVATE(Tag, Class, Type, Name, Class::*) \
+ namespace { \
+ namespace access_private_field { \
+ Type &Class##Name(Class &&t) { return t.*get(private_access_detail::Tag{}); } \
+ Type &Class##Name(Class &t) { return t.*get(private_access_detail::Tag{}); } \
+ /* The following usings are here to avoid duplicate const qualifier \
+ * warnings \
+ */ \
+ using PRIVATE_ACCESS_DETAIL_CONCATENATE(X, Tag) = Type; \
+ using PRIVATE_ACCESS_DETAIL_CONCATENATE(Y, Tag) = \
+ const PRIVATE_ACCESS_DETAIL_CONCATENATE(X, Tag); \
+ PRIVATE_ACCESS_DETAIL_CONCATENATE(Y, Tag) & Class##Name(const Class &t) {\
+ return t.*get(private_access_detail::Tag{}); \
+ } \
+ } \
+ }
+
+#define PRIVATE_ACCESS_DETAIL_ACCESS_PRIVATE_FUN(Tag, Class, Type, Name) \
+ PRIVATE_ACCESS_DETAIL_ACCESS_PRIVATE(Tag, Class, Type, Name, Class::*) \
+ namespace { \
+ namespace call_private_fun { \
+ /* We do perfect forwarding, but we want to restrict the overload set \
+ * only for objects which have the type Class. */ \
+ template <typename Obj, \
+ std::enable_if_t<std::is_same<std::remove_reference_t<Obj>, \
+ Class>::value> * = nullptr, \
+ typename... Args> \
+ auto Class##Name(Obj &&o, Args &&... args) -> decltype( \
+ (std::forward<Obj>(o).* \
+ get(private_access_detail::Tag{}))(std::forward<Args>(args)...)) { \
+ return (std::forward<Obj>(o).*get(private_access_detail::Tag{}))( \
+ std::forward<Args>(args)...); \
+ } \
+ } \
+ namespace get_private_fun { \
+ auto Class##Name() -> decltype( \
+ get(private_access_detail::Tag{})) { \
+ return (get(private_access_detail::Tag{})); \
+ } \
+ } \
+ }
+
+#define PRIVATE_ACCESS_DETAIL_ACCESS_PRIVATE_STATIC_FIELD(Tag, Class, Type, \
+ Name) \
+ PRIVATE_ACCESS_DETAIL_ACCESS_PRIVATE(Tag, Class, Type, Name, *) \
+ namespace { \
+ namespace access_private_static_field { \
+ namespace Class { \
+ Type &Class##Name() { return *get(private_access_detail::Tag{}); } \
+ } \
+ } \
+ }
+
+#define PRIVATE_ACCESS_DETAIL_ACCESS_PRIVATE_STATIC_FUN(Tag, Class, Type, \
+ Name) \
+ PRIVATE_ACCESS_DETAIL_ACCESS_PRIVATE(Tag, Class, Type, Name, *) \
+ namespace { \
+ namespace call_private_static_fun { \
+ namespace Class { \
+ template <typename... Args> \
+ auto Class##Name(Args &&... args) -> decltype( \
+ get(private_access_detail::Tag{})(std::forward<Args>(args)...)) { \
+ return get(private_access_detail::Tag{})( \
+ std::forward<Args>(args)...); \
+ } \
+ } \
+ } \
+ namespace get_private_static_fun { \
+ namespace Class { \
+ auto Class##Name() -> decltype(get(private_access_detail::Tag{})) { \
+ return get(private_access_detail::Tag{}); \
+ } \
+ } \
+ } \
+ }
+
+#define PRIVATE_ACCESS_DETAIL_UNIQUE_TAG \
+ PRIVATE_ACCESS_DETAIL_CONCATENATE(PrivateAccessTag, __COUNTER__)
+
+#define ACCESS_PRIVATE_FIELD(Class, Type, Name) \
+ PRIVATE_ACCESS_DETAIL_ACCESS_PRIVATE_FIELD(PRIVATE_ACCESS_DETAIL_UNIQUE_TAG, \
+ Class, Type, Name)
+
+#define ACCESS_PRIVATE_FUN(Class, Type, Name) \
+ PRIVATE_ACCESS_DETAIL_ACCESS_PRIVATE_FUN(PRIVATE_ACCESS_DETAIL_UNIQUE_TAG, \
+ Class, Type, Name)
+
+#define ACCESS_PRIVATE_STATIC_FIELD(Class, Type, Name) \
+ Type Class::Name; \
+ PRIVATE_ACCESS_DETAIL_ACCESS_PRIVATE_STATIC_FIELD( \
+ PRIVATE_ACCESS_DETAIL_UNIQUE_TAG, Class, Type, Name)
+
+#define ACCESS_PRIVATE_STATIC_FUN(Class, Type, Name) \
+ PRIVATE_ACCESS_DETAIL_ACCESS_PRIVATE_STATIC_FUN( \
+ PRIVATE_ACCESS_DETAIL_UNIQUE_TAG, Class, Type, Name)
+
+#endif
diff --git a/tests/cpp-stub/cpp_stub.h b/tests/cpp-stub/cpp_stub.h
new file mode 100644
index 0000000..6d6b13a
--- /dev/null
+++ b/tests/cpp-stub/cpp_stub.h
@@ -0,0 +1,362 @@
+#ifndef __STUB_H__
+#define __STUB_H__
+
+// Copyright (c) 2019 coolxv
+//
+// Distributed under the MIT Software License
+// See accompanying file LICENSE.txt or copy at
+// https://opensource.org/licenses/MIT
+
+#ifdef _WIN32
+//windows
+#include <windows.h>
+#include <processthreadsapi.h>
+#else
+//linux
+#include <unistd.h>
+#include <sys/mman.h>
+#endif
+//c
+#include <cstddef>
+#include <cstring>
+//c++
+#include <map>
+
+
+#define ADDR(CLASS_NAME,MEMBER_NAME) (&CLASS_NAME::MEMBER_NAME)
+
+/**********************************************************
+ replace function
+**********************************************************/
+#ifdef _WIN32
+#define CACHEFLUSH(addr, size) FlushInstructionCache(GetCurrentProcess(), addr, size)
+#else
+#define CACHEFLUSH(addr, size) __builtin___clear_cache(addr, addr + size)
+#endif
+
+#if defined(__aarch64__) || defined(_M_ARM64)
+ #define CODESIZE 16U
+ #define CODESIZE_MIN 16U
+ #define CODESIZE_MAX CODESIZE
+ // ldr x9, +8
+ // br x9
+ // addr
+ #define REPLACE_FAR(t, fn, fn_stub)\
+ ((uint32_t*)fn)[0] = 0x58000040 | 9;\
+ ((uint32_t*)fn)[1] = 0xd61f0120 | (9 << 5);\
+ *(long long *)(fn + 8) = (long long )fn_stub;\
+ CACHEFLUSH((char *)fn, CODESIZE);
+ #define REPLACE_NEAR(t, fn, fn_stub) REPLACE_FAR(t, fn, fn_stub)
+#elif defined(__arm__) || defined(_M_ARM)
+ #define CODESIZE 8U
+ #define CODESIZE_MIN 8U
+ #define CODESIZE_MAX CODESIZE
+ // ldr pc, [pc, #-4]
+ #define REPLACE_FAR(t, fn, fn_stub)\
+ ((uint32_t*)fn)[0] = 0xe51ff004;\
+ ((uint32_t*)fn)[1] = (uint32_t)fn_stub;\
+ CACHEFLUSH((char *)fn, CODESIZE);
+ #define REPLACE_NEAR(t, fn, fn_stub) REPLACE_FAR(t, fn, fn_stub)
+#elif defined(__mips64)
+ #define CODESIZE 80U
+ #define CODESIZE_MIN 80U
+ #define CODESIZE_MAX CODESIZE
+ //MIPS has no PC pointer, so you need to manually enter and exit the stack
+ //120000ce0: 67bdffe0 daddiu sp, sp, -32 //enter the stack
+ //120000ce4: ffbf0018 sd ra, 24(sp)
+ //120000ce8: ffbe0010 sd s8, 16(sp)
+ //120000cec: ffbc0008 sd gp, 8(sp)
+ //120000cf0: 03a0f025 move s8, sp
+
+ //120000d2c: 03c0e825 move sp, s8 //exit the stack
+ //120000d30: dfbf0018 ld ra, 24(sp)
+ //120000d34: dfbe0010 ld s8, 16(sp)
+ //120000d38: dfbc0008 ld gp, 8(sp)
+ //120000d3c: 67bd0020 daddiu sp, sp, 32
+ //120000d40: 03e00008 jr ra
+
+ #define REPLACE_FAR(t, fn, fn_stub)\
+ ((uint32_t *)fn)[0] = 0x67bdffe0;\
+ ((uint32_t *)fn)[1] = 0xffbf0018;\
+ ((uint32_t *)fn)[2] = 0xffbe0010;\
+ ((uint32_t *)fn)[3] = 0xffbc0008;\
+ ((uint32_t *)fn)[4] = 0x03a0f025;\
+ *(uint16_t *)(fn + 20) = (long long)fn_stub >> 32;\
+ *(fn + 22) = 0x19;\
+ *(fn + 23) = 0x24;\
+ ((uint32_t *)fn)[6] = 0x0019cc38;\
+ *(uint16_t *)(fn + 28) = (long long)fn_stub >> 16;\
+ *(fn + 30) = 0x39;\
+ *(fn + 31) = 0x37;\
+ ((uint32_t *)fn)[8] = 0x0019cc38;\
+ *(uint16_t *)(fn + 36) = (long long)fn_stub;\
+ *(fn + 38) = 0x39;\
+ *(fn + 39) = 0x37;\
+ ((uint32_t *)fn)[10] = 0x0320f809;\
+ ((uint32_t *)fn)[11] = 0x00000000;\
+ ((uint32_t *)fn)[12] = 0x00000000;\
+ ((uint32_t *)fn)[13] = 0x03c0e825;\
+ ((uint32_t *)fn)[14] = 0xdfbf0018;\
+ ((uint32_t *)fn)[15] = 0xdfbe0010;\
+ ((uint32_t *)fn)[16] = 0xdfbc0008;\
+ ((uint32_t *)fn)[17] = 0x67bd0020;\
+ ((uint32_t *)fn)[18] = 0x03e00008;\
+ ((uint32_t *)fn)[19] = 0x00000000;\
+ CACHEFLUSH((char *)fn, CODESIZE);
+ #define REPLACE_NEAR(t, fn, fn_stub) REPLACE_FAR(t, fn, fn_stub)
+#elif defined(__thumb__) || defined(_M_THUMB)
+ #error "Thumb is not supported"
+#else //__i386__ _x86_64__ _M_IX86 _M_X64
+ #define CODESIZE 13U
+ #define CODESIZE_MIN 5U
+ #define CODESIZE_MAX CODESIZE
+ //13 byte(jmp m16:64)
+ //movabs $0x102030405060708,%r11
+ //jmpq *%r11
+ #define REPLACE_FAR(t, fn, fn_stub)\
+ *fn = 0x49;\
+ *(fn + 1) = 0xbb;\
+ *(long long *)(fn + 2) = (long long)fn_stub;\
+ *(fn + 10) = 0x41;\
+ *(fn + 11) = 0xff;\
+ *(fn + 12) = 0xe3;\
+ //CACHEFLUSH((char *)fn, CODESIZE);
+
+ //5 byte(jmp rel32)
+ #define REPLACE_NEAR(t, fn, fn_stub)\
+ *fn = 0xE9;\
+ *(int *)(fn + 1) = (int)(fn_stub - fn - CODESIZE_MIN);\
+ //CACHEFLUSH((char *)fn, CODESIZE);
+#endif
+
+struct func_stub
+{
+ unsigned char *fn;
+ unsigned char code_buf[CODESIZE];
+ bool far_jmp;
+};
+
+class Stub
+{
+public:
+ Stub()
+ {
+#ifdef _WIN32
+ SYSTEM_INFO sys_info;
+ GetSystemInfo(&sys_info);
+ m_pagesize = sys_info.dwPageSize;
+#else
+ m_pagesize = sysconf(_SC_PAGE_SIZE);
+#endif
+
+ if (m_pagesize < 0)
+ {
+ m_pagesize = 4096;
+ }
+ }
+ ~Stub()
+ {
+ std::map<unsigned char*,func_stub*>::iterator iter;
+ struct func_stub *pstub;
+ for(iter=m_result.begin(); iter != m_result.end(); iter++)
+ {
+ pstub = iter->second;
+#ifdef _WIN32
+ DWORD lpflOldProtect;
+ if(0 != VirtualProtect(pageof(pstub->fn), m_pagesize * 2, PAGE_EXECUTE_READWRITE, &lpflOldProtect))
+#else
+ if (0 == mprotect(pageof(pstub->fn), m_pagesize * 2, PROT_READ | PROT_WRITE | PROT_EXEC))
+#endif
+ {
+
+ if(pstub->far_jmp)
+ {
+ std::memcpy(pstub->fn, pstub->code_buf, CODESIZE_MAX);
+ }
+ else
+ {
+ std::memcpy(pstub->fn, pstub->code_buf, CODESIZE_MIN);
+ }
+
+#if defined(__aarch64__) || defined(_M_ARM64)
+ CACHEFLUSH(pstub->fn, CODESIZE);
+#elif defined(__arm__) || defined(_M_ARM)
+ CACHEFLUSH(pstub->fn, CODESIZE);
+#elif defined(__mips64)
+ CACHEFLUSH(pstub->fn, CODESIZE);
+#else //__i386__ _x86_64__ _M_IX86 _M_X64
+ //CACHEFLUSH(pstub->fn, CODESIZE);
+#endif
+
+#ifdef _WIN32
+ VirtualProtect(pageof(pstub->fn), m_pagesize * 2, PAGE_EXECUTE_READ, &lpflOldProtect);
+#else
+ mprotect(pageof(pstub->fn), m_pagesize * 2, PROT_READ | PROT_EXEC);
+#endif
+ }
+
+ iter->second = NULL;
+ delete pstub;
+ }
+
+ return;
+ }
+ template<typename T,typename S>
+ void set(T addr, S addr_stub)
+ {
+ unsigned char * fn;
+ unsigned char * fn_stub;
+ fn = addrof(addr);
+ fn_stub = addrof(addr_stub);
+ struct func_stub *pstub;
+ pstub = new func_stub;
+ //start
+ reset(fn); //
+ pstub->fn = fn;
+
+ if(distanceof(fn, fn_stub))
+ {
+ pstub->far_jmp = true;
+ std::memcpy(pstub->code_buf, fn, CODESIZE_MAX);
+ }
+ else
+ {
+ pstub->far_jmp = false;
+ std::memcpy(pstub->code_buf, fn, CODESIZE_MIN);
+ }
+
+#ifdef _WIN32
+ DWORD lpflOldProtect;
+ if(0 == VirtualProtect(pageof(pstub->fn), m_pagesize * 2, PAGE_EXECUTE_READWRITE, &lpflOldProtect))
+#else
+ if (-1 == mprotect(pageof(pstub->fn), m_pagesize * 2, PROT_READ | PROT_WRITE | PROT_EXEC))
+#endif
+ {
+ throw("stub set memory protect to w+r+x failed");
+ }
+
+ if(pstub->far_jmp)
+ {
+ REPLACE_FAR(this, fn, fn_stub);
+ }
+ else
+ {
+ REPLACE_NEAR(this, fn, fn_stub);
+ }
+
+
+#ifdef _WIN32
+ if(0 == VirtualProtect(pageof(pstub->fn), m_pagesize * 2, PAGE_EXECUTE_READ, &lpflOldProtect))
+#else
+ if (-1 == mprotect(pageof(pstub->fn), m_pagesize * 2, PROT_READ | PROT_EXEC))
+#endif
+ {
+ throw("stub set memory protect to r+x failed");
+ }
+ m_result.insert(std::pair<unsigned char*,func_stub*>(fn,pstub));
+ return;
+ }
+
+ template<typename T>
+ void reset(T addr)
+ {
+ unsigned char * fn;
+ fn = addrof(addr);
+
+ std::map<unsigned char*,func_stub*>::iterator iter = m_result.find(fn);
+
+ if (iter == m_result.end())
+ {
+ return;
+ }
+ struct func_stub *pstub;
+ pstub = iter->second;
+
+#ifdef _WIN32
+ DWORD lpflOldProtect;
+ if(0 == VirtualProtect(pageof(pstub->fn), m_pagesize * 2, PAGE_EXECUTE_READWRITE, &lpflOldProtect))
+#else
+ if (-1 == mprotect(pageof(pstub->fn), m_pagesize * 2, PROT_READ | PROT_WRITE | PROT_EXEC))
+#endif
+ {
+ throw("stub reset memory protect to w+r+x failed");
+ }
+
+ if(pstub->far_jmp)
+ {
+ std::memcpy(pstub->fn, pstub->code_buf, CODESIZE_MAX);
+ }
+ else
+ {
+ std::memcpy(pstub->fn, pstub->code_buf, CODESIZE_MIN);
+ }
+
+#if defined(__aarch64__) || defined(_M_ARM64)
+ CACHEFLUSH(pstub->fn, CODESIZE);
+#elif defined(__arm__) || defined(_M_ARM)
+ CACHEFLUSH(pstub->fn, CODESIZE);
+#elif defined(__mips64)
+ CACHEFLUSH(pstub->fn, CODESIZE);
+#else //__i386__ _x86_64__ _M_IX86 _M_X64
+ //CACHEFLUSH(pstub->fn, CODESIZE);
+#endif
+
+#ifdef _WIN32
+ if(0 == VirtualProtect(pageof(pstub->fn), m_pagesize * 2, PAGE_EXECUTE_READ, &lpflOldProtect))
+#else
+ if (-1 == mprotect(pageof(pstub->fn), m_pagesize * 2, PROT_READ | PROT_EXEC))
+#endif
+ {
+ throw("stub reset memory protect to r+x failed");
+ }
+ m_result.erase(iter);
+ delete pstub;
+
+ return;
+ }
+private:
+ char *pageof(unsigned char* addr)
+ {
+#ifdef _WIN32
+ return (char *)((unsigned long long)addr & ~(m_pagesize - 1));
+#else
+ return (char *)((unsigned long)addr & ~(m_pagesize - 1));
+#endif
+ }
+
+ template<typename T>
+ unsigned char* addrof(T addr)
+ {
+ union
+ {
+ T _s;
+ unsigned char* _d;
+ }ut;
+ ut._s = addr;
+ return ut._d;
+ }
+
+ bool distanceof(unsigned char* addr, unsigned char* addr_stub)
+ {
+ std::ptrdiff_t diff = addr_stub >= addr ? addr_stub - addr : addr - addr_stub;
+ if((sizeof(addr) > 4) && (((diff >> 31) - 1) > 0))
+ {
+ return true;
+ }
+ return false;
+ }
+
+private:
+#ifdef _WIN32
+ //LLP64
+ long long m_pagesize;
+#else
+ //LP64
+ long m_pagesize;
+#endif
+ std::map<unsigned char*, func_stub*> m_result;
+
+};
+
+
+#endif
diff --git a/tests/cpp-stub/elfio.hpp b/tests/cpp-stub/elfio.hpp
new file mode 100644
index 0000000..7099f27
--- /dev/null
+++ b/tests/cpp-stub/elfio.hpp
@@ -0,0 +1,4893 @@
+// Copyright (c) 2019 coolxv
+//
+// Distributed under the MIT Software License
+// See accompanying file LICENSE.txt or copy at
+// https://opensource.org/licenses/MIT
+
+/*** Start of inlined file: elfio_dump.hpp ***/
+#ifndef ELFIO_DUMP_HPP
+#define ELFIO_DUMP_HPP
+
+#include <algorithm>
+#include <string>
+#include <ostream>
+#include <sstream>
+#include <iomanip>
+
+/*** Start of inlined file: elfio.hpp ***/
+#ifndef ELFIO_HPP
+#define ELFIO_HPP
+
+#ifdef _MSC_VER
+#pragma warning( push )
+#pragma warning( disable : 4996 )
+#pragma warning( disable : 4355 )
+#pragma warning( disable : 4244 )
+#endif
+
+#include <string>
+#include <iostream>
+#include <fstream>
+#include <functional>
+#include <algorithm>
+#include <vector>
+#include <deque>
+#include <iterator>
+
+
+/*** Start of inlined file: elf_types.hpp ***/
+#ifndef ELFTYPES_H
+#define ELFTYPES_H
+
+#ifndef ELFIO_NO_OWN_TYPES
+#if !defined( ELFIO_NO_CSTDINT ) && !defined( ELFIO_NO_INTTYPES )
+#include <stdint.h>
+#else
+typedef unsigned char uint8_t;
+typedef signed char int8_t;
+typedef unsigned short uint16_t;
+typedef signed short int16_t;
+#ifdef _MSC_VER
+typedef unsigned __int32 uint32_t;
+typedef signed __int32 int32_t;
+typedef unsigned __int64 uint64_t;
+typedef signed __int64 int64_t;
+#else
+typedef unsigned int uint32_t;
+typedef signed int int32_t;
+typedef unsigned long long uint64_t;
+typedef signed long long int64_t;
+#endif // _MSC_VER
+#endif // ELFIO_NO_CSTDINT
+#endif // ELFIO_NO_OWN_TYPES
+
+namespace ELFIO {
+
+// Attention! Platform depended definitions.
+typedef uint16_t Elf_Half;
+typedef uint32_t Elf_Word;
+typedef int32_t Elf_Sword;
+typedef uint64_t Elf_Xword;
+typedef int64_t Elf_Sxword;
+
+typedef uint32_t Elf32_Addr;
+typedef uint32_t Elf32_Off;
+typedef uint64_t Elf64_Addr;
+typedef uint64_t Elf64_Off;
+
+#define Elf32_Half Elf_Half
+#define Elf64_Half Elf_Half
+#define Elf32_Word Elf_Word
+#define Elf64_Word Elf_Word
+#define Elf32_Sword Elf_Sword
+#define Elf64_Sword Elf_Sword
+
+///////////////////////
+// ELF Header Constants
+
+// File type
+#define ET_NONE 0
+#define ET_REL 1
+#define ET_EXEC 2
+#define ET_DYN 3
+#define ET_CORE 4
+#define ET_LOOS 0xFE00
+#define ET_HIOS 0xFEFF
+#define ET_LOPROC 0xFF00
+#define ET_HIPROC 0xFFFF
+
+#define EM_NONE 0 // No machine
+#define EM_M32 1 // AT&T WE 32100
+#define EM_SPARC 2 // SUN SPARC
+#define EM_386 3 // Intel 80386
+#define EM_68K 4 // Motorola m68k family
+#define EM_88K 5 // Motorola m88k family
+#define EM_486 6 // Intel 80486// Reserved for future use
+#define EM_860 7 // Intel 80860
+#define EM_MIPS 8 // MIPS R3000 (officially, big-endian only)
+#define EM_S370 9 // IBM System/370
+#define EM_MIPS_RS3_LE \
+ 10 // MIPS R3000 little-endian (Oct 4 1999 Draft) Deprecated
+#define EM_res011 11 // Reserved
+#define EM_res012 12 // Reserved
+#define EM_res013 13 // Reserved
+#define EM_res014 14 // Reserved
+#define EM_PARISC 15 // HPPA
+#define EM_res016 16 // Reserved
+#define EM_VPP550 17 // Fujitsu VPP500
+#define EM_SPARC32PLUS 18 // Sun's "v8plus"
+#define EM_960 19 // Intel 80960
+#define EM_PPC 20 // PowerPC
+#define EM_PPC64 21 // 64-bit PowerPC
+#define EM_S390 22 // IBM S/390
+#define EM_SPU 23 // Sony/Toshiba/IBM SPU
+#define EM_res024 24 // Reserved
+#define EM_res025 25 // Reserved
+#define EM_res026 26 // Reserved
+#define EM_res027 27 // Reserved
+#define EM_res028 28 // Reserved
+#define EM_res029 29 // Reserved
+#define EM_res030 30 // Reserved
+#define EM_res031 31 // Reserved
+#define EM_res032 32 // Reserved
+#define EM_res033 33 // Reserved
+#define EM_res034 34 // Reserved
+#define EM_res035 35 // Reserved
+#define EM_V800 36 // NEC V800 series
+#define EM_FR20 37 // Fujitsu FR20
+#define EM_RH32 38 // TRW RH32
+#define EM_MCORE 39 // Motorola M*Core // May also be taken by Fujitsu MMA
+#define EM_RCE 39 // Old name for MCore
+#define EM_ARM 40 // ARM
+#define EM_OLD_ALPHA 41 // Digital Alpha
+#define EM_SH 42 // Renesas (formerly Hitachi) / SuperH SH
+#define EM_SPARCV9 43 // SPARC v9 64-bit
+#define EM_TRICORE 44 // Siemens Tricore embedded processor
+#define EM_ARC 45 // ARC Cores
+#define EM_H8_300 46 // Renesas (formerly Hitachi) H8/300
+#define EM_H8_300H 47 // Renesas (formerly Hitachi) H8/300H
+#define EM_H8S 48 // Renesas (formerly Hitachi) H8S
+#define EM_H8_500 49 // Renesas (formerly Hitachi) H8/500
+#define EM_IA_64 50 // Intel IA-64 Processor
+#define EM_MIPS_X 51 // Stanford MIPS-X
+#define EM_COLDFIRE 52 // Motorola Coldfire
+#define EM_68HC12 53 // Motorola M68HC12
+#define EM_MMA 54 // Fujitsu Multimedia Accelerator
+#define EM_PCP 55 // Siemens PCP
+#define EM_NCPU 56 // Sony nCPU embedded RISC processor
+#define EM_NDR1 57 // Denso NDR1 microprocesspr
+#define EM_STARCORE 58 // Motorola Star*Core processor
+#define EM_ME16 59 // Toyota ME16 processor
+#define EM_ST100 60 // STMicroelectronics ST100 processor
+#define EM_TINYJ 61 // Advanced Logic Corp. TinyJ embedded processor
+#define EM_X86_64 62 // Advanced Micro Devices X86-64 processor
+#define EM_PDSP 63 // Sony DSP Processor
+#define EM_PDP10 64 // Digital Equipment Corp. PDP-10
+#define EM_PDP11 65 // Digital Equipment Corp. PDP-11
+#define EM_FX66 66 // Siemens FX66 microcontroller
+#define EM_ST9PLUS 67 // STMicroelectronics ST9+ 8/16 bit microcontroller
+#define EM_ST7 68 // STMicroelectronics ST7 8-bit microcontroller
+#define EM_68HC16 69 // Motorola MC68HC16 Microcontroller
+#define EM_68HC11 70 // Motorola MC68HC11 Microcontroller
+#define EM_68HC08 71 // Motorola MC68HC08 Microcontroller
+#define EM_68HC05 72 // Motorola MC68HC05 Microcontroller
+#define EM_SVX 73 // Silicon Graphics SVx
+#define EM_ST19 74 // STMicroelectronics ST19 8-bit cpu
+#define EM_VAX 75 // Digital VAX
+#define EM_CRIS 76 // Axis Communications 32-bit embedded processor
+#define EM_JAVELIN 77 // Infineon Technologies 32-bit embedded cpu
+#define EM_FIREPATH 78 // Element 14 64-bit DSP processor
+#define EM_ZSP 79 // LSI Logic's 16-bit DSP processor
+#define EM_MMIX 80 // Donald Knuth's educational 64-bit processor
+#define EM_HUANY 81 // Harvard's machine-independent format
+#define EM_PRISM 82 // SiTera Prism
+#define EM_AVR 83 // Atmel AVR 8-bit microcontroller
+#define EM_FR30 84 // Fujitsu FR30
+#define EM_D10V 85 // Mitsubishi D10V
+#define EM_D30V 86 // Mitsubishi D30V
+#define EM_V850 87 // NEC v850
+#define EM_M32R 88 // Renesas M32R (formerly Mitsubishi M32R)
+#define EM_MN10300 89 // Matsushita MN10300
+#define EM_MN10200 90 // Matsushita MN10200
+#define EM_PJ 91 // picoJava
+#define EM_OPENRISC 92 // OpenRISC 32-bit embedded processor
+#define EM_ARC_A5 93 // ARC Cores Tangent-A5
+#define EM_XTENSA 94 // Tensilica Xtensa Architecture
+#define EM_VIDEOCORE 95 // Alphamosaic VideoCore processor
+#define EM_TMM_GPP 96 // Thompson Multimedia General Purpose Processor
+#define EM_NS32K 97 // National Semiconductor 32000 series
+#define EM_TPC 98 // Tenor Network TPC processor
+#define EM_SNP1K 99 // Trebia SNP 1000 processor
+#define EM_ST200 100 // STMicroelectronics ST200 microcontroller
+#define EM_IP2K 101 // Ubicom IP2022 micro controller
+#define EM_MAX 102 // MAX Processor
+#define EM_CR 103 // National Semiconductor CompactRISC
+#define EM_F2MC16 104 // Fujitsu F2MC16
+#define EM_MSP430 105 // TI msp430 micro controller
+#define EM_BLACKFIN 106 // ADI Blackfin
+#define EM_SE_C33 107 // S1C33 Family of Seiko Epson processors
+#define EM_SEP 108 // Sharp embedded microprocessor
+#define EM_ARCA 109 // Arca RISC Microprocessor
+#define EM_UNICORE \
+ 110 // Microprocessor series from PKU-Unity Ltd. and MPRC of Peking University
+#define EM_EXCESS 111 // eXcess: 16/32/64-bit configurable embedded CPU
+#define EM_DXP 112 // Icera Semiconductor Inc. Deep Execution Processor
+#define EM_ALTERA_NIOS2 113 // Altera Nios II soft-core processor
+#define EM_CRX 114 // National Semiconductor CRX
+#define EM_XGATE 115 // Motorola XGATE embedded processor
+#define EM_C166 116 // Infineon C16x/XC16x processor
+#define EM_M16C 117 // Renesas M16C series microprocessors
+#define EM_DSPIC30F \
+ 118 // Microchip Technology dsPIC30F Digital Signal Controller
+#define EM_CE 119 // Freescale Communication Engine RISC core
+#define EM_M32C 120 // Renesas M32C series microprocessors
+#define EM_res121 121 // Reserved
+#define EM_res122 122 // Reserved
+#define EM_res123 123 // Reserved
+#define EM_res124 124 // Reserved
+#define EM_res125 125 // Reserved
+#define EM_res126 126 // Reserved
+#define EM_res127 127 // Reserved
+#define EM_res128 128 // Reserved
+#define EM_res129 129 // Reserved
+#define EM_res130 130 // Reserved
+#define EM_TSK3000 131 // Altium TSK3000 core
+#define EM_RS08 132 // Freescale RS08 embedded processor
+#define EM_res133 133 // Reserved
+#define EM_ECOG2 134 // Cyan Technology eCOG2 microprocessor
+#define EM_SCORE 135 // Sunplus Score
+#define EM_SCORE7 135 // Sunplus S+core7 RISC processor
+#define EM_DSP24 136 // New Japan Radio (NJR) 24-bit DSP Processor
+#define EM_VIDEOCORE3 137 // Broadcom VideoCore III processor
+#define EM_LATTICEMICO32 138 // RISC processor for Lattice FPGA architecture
+#define EM_SE_C17 139 // Seiko Epson C17 family
+#define EM_TI_C6000 140 // Texas Instruments TMS320C6000 DSP family
+#define EM_TI_C2000 141 // Texas Instruments TMS320C2000 DSP family
+#define EM_TI_C5500 142 // Texas Instruments TMS320C55x DSP family
+#define EM_res143 143 // Reserved
+#define EM_res144 144 // Reserved
+#define EM_res145 145 // Reserved
+#define EM_res146 146 // Reserved
+#define EM_res147 147 // Reserved
+#define EM_res148 148 // Reserved
+#define EM_res149 149 // Reserved
+#define EM_res150 150 // Reserved
+#define EM_res151 151 // Reserved
+#define EM_res152 152 // Reserved
+#define EM_res153 153 // Reserved
+#define EM_res154 154 // Reserved
+#define EM_res155 155 // Reserved
+#define EM_res156 156 // Reserved
+#define EM_res157 157 // Reserved
+#define EM_res158 158 // Reserved
+#define EM_res159 159 // Reserved
+#define EM_MMDSP_PLUS 160 // STMicroelectronics 64bit VLIW Data Signal Processor
+#define EM_CYPRESS_M8C 161 // Cypress M8C microprocessor
+#define EM_R32C 162 // Renesas R32C series microprocessors
+#define EM_TRIMEDIA 163 // NXP Semiconductors TriMedia architecture family
+#define EM_QDSP6 164 // QUALCOMM DSP6 Processor
+#define EM_8051 165 // Intel 8051 and variants
+#define EM_STXP7X 166 // STMicroelectronics STxP7x family
+#define EM_NDS32 \
+ 167 // Andes Technology compact code size embedded RISC processor family
+#define EM_ECOG1 168 // Cyan Technology eCOG1X family
+#define EM_ECOG1X 168 // Cyan Technology eCOG1X family
+#define EM_MAXQ30 169 // Dallas Semiconductor MAXQ30 Core Micro-controllers
+#define EM_XIMO16 170 // New Japan Radio (NJR) 16-bit DSP Processor
+#define EM_MANIK 171 // M2000 Reconfigurable RISC Microprocessor
+#define EM_CRAYNV2 172 // Cray Inc. NV2 vector architecture
+#define EM_RX 173 // Renesas RX family
+#define EM_METAG 174 // Imagination Technologies META processor architecture
+#define EM_MCST_ELBRUS 175 // MCST Elbrus general purpose hardware architecture
+#define EM_ECOG16 176 // Cyan Technology eCOG16 family
+#define EM_CR16 177 // National Semiconductor CompactRISC 16-bit processor
+#define EM_ETPU 178 // Freescale Extended Time Processing Unit
+#define EM_SLE9X 179 // Infineon Technologies SLE9X core
+#define EM_L1OM 180 // Intel L1OM
+#define EM_INTEL181 181 // Reserved by Intel
+#define EM_INTEL182 182 // Reserved by Intel
+#define EM_res183 183 // Reserved by ARM
+#define EM_res184 184 // Reserved by ARM
+#define EM_AVR32 185 // Atmel Corporation 32-bit microprocessor family
+#define EM_STM8 186 // STMicroeletronics STM8 8-bit microcontroller
+#define EM_TILE64 187 // Tilera TILE64 multicore architecture family
+#define EM_TILEPRO 188 // Tilera TILEPro multicore architecture family
+#define EM_MICROBLAZE 189 // Xilinx MicroBlaze 32-bit RISC soft processor core
+#define EM_CUDA 190 // NVIDIA CUDA architecture
+#define EM_TILEGX 191 // Tilera TILE-Gx multicore architecture family
+#define EM_CLOUDSHIELD 192 // CloudShield architecture family
+#define EM_COREA_1ST 193 // KIPO-KAIST Core-A 1st generation processor family
+#define EM_COREA_2ND 194 // KIPO-KAIST Core-A 2nd generation processor family
+#define EM_ARC_COMPACT2 195 // Synopsys ARCompact V2
+#define EM_OPEN8 196 // Open8 8-bit RISC soft processor core
+#define EM_RL78 197 // Renesas RL78 family
+#define EM_VIDEOCORE5 198 // Broadcom VideoCore V processor
+#define EM_78KOR 199 // Renesas 78KOR family
+#define EM_56800EX 200 // Freescale 56800EX Digital Signal Controller (DSC)
+#define EM_BA1 201 // Beyond BA1 CPU architecture
+#define EM_BA2 202 // Beyond BA2 CPU architecture
+#define EM_XCORE 203 // XMOS xCORE processor family
+#define EM_MCHP_PIC 204 // Microchip 8-bit PIC(r) family
+#define EM_INTEL205 205 // Reserved by Intel
+#define EM_INTEL206 206 // Reserved by Intel
+#define EM_INTEL207 207 // Reserved by Intel
+#define EM_INTEL208 208 // Reserved by Intel
+#define EM_INTEL209 209 // Reserved by Intel
+#define EM_KM32 210 // KM211 KM32 32-bit processor
+#define EM_KMX32 211 // KM211 KMX32 32-bit processor
+#define EM_KMX16 212 // KM211 KMX16 16-bit processor
+#define EM_KMX8 213 // KM211 KMX8 8-bit processor
+#define EM_KVARC 214 // KM211 KVARC processor
+#define EM_CDP 215 // Paneve CDP architecture family
+#define EM_COGE 216 // Cognitive Smart Memory Processor
+#define EM_COOL 217 // iCelero CoolEngine
+#define EM_NORC 218 // Nanoradio Optimized RISC
+#define EM_CSR_KALIMBA 219 // CSR Kalimba architecture family
+#define EM_Z80 220 // Zilog Z80
+#define EM_VISIUM 221 // Controls and Data Services VISIUMcore processor
+#define EM_FT32 222 // FTDI Chip FT32 high performance 32-bit RISC architecture
+#define EM_MOXIE 223 // Moxie processor family
+#define EM_AMDGPU 224 // AMD GPU architecture
+#define EM_RISCV 243 // RISC-V
+#define EM_LANAI 244 // Lanai processor
+#define EM_CEVA 245 // CEVA Processor Architecture Family
+#define EM_CEVA_X2 246 // CEVA X2 Processor Family
+#define EM_BPF 247 // Linux BPF – in-kernel virtual machine
+#define EM_GRAPHCORE_IPU 248 // Graphcore Intelligent Processing Unit
+#define EM_IMG1 249 // Imagination Technologies
+#define EM_NFP 250 // Netronome Flow Processor (P)
+#define EM_CSKY 252 // C-SKY processor family
+
+// File version
+#define EV_NONE 0
+#define EV_CURRENT 1
+
+// Identification index
+#define EI_MAG0 0
+#define EI_MAG1 1
+#define EI_MAG2 2
+#define EI_MAG3 3
+#define EI_CLASS 4
+#define EI_DATA 5
+#define EI_VERSION 6
+#define EI_OSABI 7
+#define EI_ABIVERSION 8
+#define EI_PAD 9
+#define EI_NIDENT 16
+
+// Magic number
+#define ELFMAG0 0x7F
+#define ELFMAG1 'E'
+#define ELFMAG2 'L'
+#define ELFMAG3 'F'
+
+// File class
+#define ELFCLASSNONE 0
+#define ELFCLASS32 1
+#define ELFCLASS64 2
+
+// Encoding
+#define ELFDATANONE 0
+#define ELFDATA2LSB 1
+#define ELFDATA2MSB 2
+
+// OS extensions
+#define ELFOSABI_NONE 0 // No extensions or unspecified
+#define ELFOSABI_HPUX 1 // Hewlett-Packard HP-UX
+#define ELFOSABI_NETBSD 2 // NetBSD
+#define ELFOSABI_LINUX 3 // Linux
+#define ELFOSABI_SOLARIS 6 // Sun Solaris
+#define ELFOSABI_AIX 7 // AIX
+#define ELFOSABI_IRIX 8 // IRIX
+#define ELFOSABI_FREEBSD 9 // FreeBSD
+#define ELFOSABI_TRU64 10 // Compaq TRU64 UNIX
+#define ELFOSABI_MODESTO 11 // Novell Modesto
+#define ELFOSABI_OPENBSD 12 // Open BSD
+#define ELFOSABI_OPENVMS 13 // Open VMS
+#define ELFOSABI_NSK 14 // Hewlett-Packard Non-Stop Kernel
+#define ELFOSABI_AROS 15 // Amiga Research OS
+#define ELFOSABI_FENIXOS 16 // The FenixOS highly scalable multi-core OS
+// 64-255 Architecture-specific value range
+#define ELFOSABI_AMDGPU_HSA \
+ 64 // AMDGPU OS for HSA compatible compute // kernels.
+#define ELFOSABI_AMDGPU_PAL \
+ 65 // AMDGPU OS for AMD PAL compatible graphics // shaders and compute kernels.
+#define ELFOSABI_AMDGPU_MESA3D \
+ 66 // AMDGPU OS for Mesa3D compatible graphics // shaders and compute kernels.
+
+// AMDGPU specific e_flags
+#define EF_AMDGPU_MACH 0x0ff // AMDGPU processor selection mask.
+#define EF_AMDGPU_XNACK \
+ 0x100 // Indicates if the XNACK target feature is // enabled for all code contained in the ELF.
+// AMDGPU processors
+#define EF_AMDGPU_MACH_NONE 0x000 // Unspecified processor.
+#define EF_AMDGPU_MACH_R600_R600 0x001
+#define EF_AMDGPU_MACH_R600_R630 0x002
+#define EF_AMDGPU_MACH_R600_RS880 0x003
+#define EF_AMDGPU_MACH_R600_RV670 0x004
+#define EF_AMDGPU_MACH_R600_RV710 0x005
+#define EF_AMDGPU_MACH_R600_RV730 0x006
+#define EF_AMDGPU_MACH_R600_RV770 0x007
+#define EF_AMDGPU_MACH_R600_CEDAR 0x008
+#define EF_AMDGPU_MACH_R600_CYPRESS 0x009
+#define EF_AMDGPU_MACH_R600_JUNIPER 0x00a
+#define EF_AMDGPU_MACH_R600_REDWOOD 0x00b
+#define EF_AMDGPU_MACH_R600_SUMO 0x00c
+#define EF_AMDGPU_MACH_R600_BARTS 0x00d
+#define EF_AMDGPU_MACH_R600_CAICOS 0x00e
+#define EF_AMDGPU_MACH_R600_CAYMAN 0x00f
+#define EF_AMDGPU_MACH_R600_TURKS 0x010
+#define EF_AMDGPU_MACH_R600_RESERVED_FIRST 0x011
+#define EF_AMDGPU_MACH_R600_RESERVED_LAST 0x01f
+#define EF_AMDGPU_MACH_R600_FIRST EF_AMDGPU_MACH_R600_R600
+#define EF_AMDGPU_MACH_R600_LAST EF_AMDGPU_MACH_R600_TURKS
+#define EF_AMDGPU_MACH_AMDGCN_GFX600 0x020
+#define EF_AMDGPU_MACH_AMDGCN_GFX601 0x021
+#define EF_AMDGPU_MACH_AMDGCN_GFX700 0x022
+#define EF_AMDGPU_MACH_AMDGCN_GFX701 0x023
+#define EF_AMDGPU_MACH_AMDGCN_GFX702 0x024
+#define EF_AMDGPU_MACH_AMDGCN_GFX703 0x025
+#define EF_AMDGPU_MACH_AMDGCN_GFX704 0x026
+#define EF_AMDGPU_MACH_AMDGCN_GFX801 0x028
+#define EF_AMDGPU_MACH_AMDGCN_GFX802 0x029
+#define EF_AMDGPU_MACH_AMDGCN_GFX803 0x02a
+#define EF_AMDGPU_MACH_AMDGCN_GFX810 0x02b
+#define EF_AMDGPU_MACH_AMDGCN_GFX900 0x02c
+#define EF_AMDGPU_MACH_AMDGCN_GFX902 0x02d
+#define EF_AMDGPU_MACH_AMDGCN_GFX904 0x02e
+#define EF_AMDGPU_MACH_AMDGCN_GFX906 0x02f
+#define EF_AMDGPU_MACH_AMDGCN_RESERVED0 0x027
+#define EF_AMDGPU_MACH_AMDGCN_RESERVED1 0x030
+#define EF_AMDGPU_MACH_AMDGCN_FIRST EF_AMDGPU_MACH_AMDGCN_GFX600
+#define EF_AMDGPU_MACH_AMDGCN_LAST EF_AMDGPU_MACH_AMDGCN_GFX906
+
+/////////////////////
+// Sections constants
+
+// Section indexes
+#define SHN_UNDEF 0
+#define SHN_LORESERVE 0xFF00
+#define SHN_LOPROC 0xFF00
+#define SHN_HIPROC 0xFF1F
+#define SHN_LOOS 0xFF20
+#define SHN_HIOS 0xFF3F
+#define SHN_ABS 0xFFF1
+#define SHN_COMMON 0xFFF2
+#define SHN_XINDEX 0xFFFF
+#define SHN_HIRESERVE 0xFFFF
+
+// Section types
+#define SHT_NULL 0
+#define SHT_PROGBITS 1
+#define SHT_SYMTAB 2
+#define SHT_STRTAB 3
+#define SHT_RELA 4
+#define SHT_HASH 5
+#define SHT_DYNAMIC 6
+#define SHT_NOTE 7
+#define SHT_NOBITS 8
+#define SHT_REL 9
+#define SHT_SHLIB 10
+#define SHT_DYNSYM 11
+#define SHT_INIT_ARRAY 14
+#define SHT_FINI_ARRAY 15
+#define SHT_PREINIT_ARRAY 16
+#define SHT_GROUP 17
+#define SHT_SYMTAB_SHNDX 18
+#define SHT_LOOS 0x60000000
+#define SHT_HIOS 0x6fffffff
+#define SHT_LOPROC 0x70000000
+#define SHT_HIPROC 0x7FFFFFFF
+#define SHT_LOUSER 0x80000000
+#define SHT_HIUSER 0xFFFFFFFF
+
+// Section attribute flags
+#define SHF_WRITE 0x1
+#define SHF_ALLOC 0x2
+#define SHF_EXECINSTR 0x4
+#define SHF_MERGE 0x10
+#define SHF_STRINGS 0x20
+#define SHF_INFO_LINK 0x40
+#define SHF_LINK_ORDER 0x80
+#define SHF_OS_NONCONFORMING 0x100
+#define SHF_GROUP 0x200
+#define SHF_TLS 0x400
+#define SHF_MASKOS 0x0ff00000
+#define SHF_MASKPROC 0xF0000000
+
+// Section group flags
+#define GRP_COMDAT 0x1
+#define GRP_MASKOS 0x0ff00000
+#define GRP_MASKPROC 0xf0000000
+
+// Symbol binding
+#define STB_LOCAL 0
+#define STB_GLOBAL 1
+#define STB_WEAK 2
+#define STB_LOOS 10
+#define STB_HIOS 12
+#define STB_MULTIDEF 13
+#define STB_LOPROC 13
+#define STB_HIPROC 15
+
+// Note types
+#define NT_AMDGPU_METADATA 1
+#define NT_AMD_AMDGPU_HSA_METADATA 10
+#define NT_AMD_AMDGPU_ISA 11
+#define NT_AMD_AMDGPU_PAL_METADATA 12
+
+// Symbol types
+#define STT_NOTYPE 0
+#define STT_OBJECT 1
+#define STT_FUNC 2
+#define STT_SECTION 3
+#define STT_FILE 4
+#define STT_COMMON 5
+#define STT_TLS 6
+#define STT_LOOS 10
+#define STT_AMDGPU_HSA_KERNEL 10
+#define STT_HIOS 12
+#define STT_LOPROC 13
+#define STT_HIPROC 15
+
+// Symbol visibility
+#define STV_DEFAULT 0
+#define STV_INTERNAL 1
+#define STV_HIDDEN 2
+#define STV_PROTECTED 3
+
+// Undefined name
+#define STN_UNDEF 0
+
+// Relocation types
+#define R_386_NONE 0
+#define R_X86_64_NONE 0
+#define R_AMDGPU_NONE 0
+#define R_386_32 1
+#define R_X86_64_64 1
+#define R_AMDGPU_ABS32_LO 1
+#define R_386_PC32 2
+#define R_X86_64_PC32 2
+#define R_AMDGPU_ABS32_HI 2
+#define R_386_GOT32 3
+#define R_X86_64_GOT32 3
+#define R_AMDGPU_ABS64 3
+#define R_386_PLT32 4
+#define R_X86_64_PLT32 4
+#define R_AMDGPU_REL32 4
+#define R_386_COPY 5
+#define R_X86_64_COPY 5
+#define R_AMDGPU_REL64 5
+#define R_386_GLOB_DAT 6
+#define R_X86_64_GLOB_DAT 6
+#define R_AMDGPU_ABS32 6
+#define R_386_JMP_SLOT 7
+#define R_X86_64_JUMP_SLOT 7
+#define R_AMDGPU_GOTPCREL 7
+#define R_386_RELATIVE 8
+#define R_X86_64_RELATIVE 8
+#define R_AMDGPU_GOTPCREL32_LO 8
+#define R_386_GOTOFF 9
+#define R_X86_64_GOTPCREL 9
+#define R_AMDGPU_GOTPCREL32_HI 9
+#define R_386_GOTPC 10
+#define R_X86_64_32 10
+#define R_AMDGPU_REL32_LO 10
+#define R_386_32PLT 11
+#define R_X86_64_32S 11
+#define R_AMDGPU_REL32_HI 11
+#define R_X86_64_16 12
+#define R_X86_64_PC16 13
+#define R_AMDGPU_RELATIVE64 13
+#define R_386_TLS_TPOFF 14
+#define R_X86_64_8 14
+#define R_386_TLS_IE 15
+#define R_X86_64_PC8 15
+#define R_386_TLS_GOTIE 16
+#define R_X86_64_DTPMOD64 16
+#define R_386_TLS_LE 17
+#define R_X86_64_DTPOFF64 17
+#define R_386_TLS_GD 18
+#define R_X86_64_TPOFF64 18
+#define R_386_TLS_LDM 19
+#define R_X86_64_TLSGD 19
+#define R_386_16 20
+#define R_X86_64_TLSLD 20
+#define R_386_PC16 21
+#define R_X86_64_DTPOFF32 21
+#define R_386_8 22
+#define R_X86_64_GOTTPOFF 22
+#define R_386_PC8 23
+#define R_X86_64_TPOFF32 23
+#define R_386_TLS_GD_32 24
+#define R_X86_64_PC64 24
+#define R_386_TLS_GD_PUSH 25
+#define R_X86_64_GOTOFF64 25
+#define R_386_TLS_GD_CALL 26
+#define R_X86_64_GOTPC32 26
+#define R_386_TLS_GD_POP 27
+#define R_X86_64_GOT64 27
+#define R_386_TLS_LDM_32 28
+#define R_X86_64_GOTPCREL64 28
+#define R_386_TLS_LDM_PUSH 29
+#define R_X86_64_GOTPC64 29
+#define R_386_TLS_LDM_CALL 30
+#define R_X86_64_GOTPLT64 30
+#define R_386_TLS_LDM_POP 31
+#define R_X86_64_PLTOFF64 31
+#define R_386_TLS_LDO_32 32
+#define R_386_TLS_IE_32 33
+#define R_386_TLS_LE_32 34
+#define R_X86_64_GOTPC32_TLSDESC 34
+#define R_386_TLS_DTPMOD32 35
+#define R_X86_64_TLSDESC_CALL 35
+#define R_386_TLS_DTPOFF32 36
+#define R_X86_64_TLSDESC 36
+#define R_386_TLS_TPOFF32 37
+#define R_X86_64_IRELATIVE 37
+#define R_386_SIZE32 38
+#define R_386_TLS_GOTDESC 39
+#define R_386_TLS_DESC_CALL 40
+#define R_386_TLS_DESC 41
+#define R_386_IRELATIVE 42
+#define R_386_GOT32X 43
+#define R_X86_64_GNU_VTINHERIT 250
+#define R_X86_64_GNU_VTENTRY 251
+
+// Segment types
+#define PT_NULL 0
+#define PT_LOAD 1
+#define PT_DYNAMIC 2
+#define PT_INTERP 3
+#define PT_NOTE 4
+#define PT_SHLIB 5
+#define PT_PHDR 6
+#define PT_TLS 7
+#define PT_LOOS 0x60000000
+#define PT_HIOS 0x6fffffff
+#define PT_LOPROC 0x70000000
+#define PT_HIPROC 0x7FFFFFFF
+
+// Segment flags
+#define PF_X 1 // Execute
+#define PF_W 2 // Write
+#define PF_R 4 // Read
+#define PF_MASKOS 0x0ff00000 // Unspecified
+#define PF_MASKPROC 0xf0000000 // Unspecified
+
+// Dynamic Array Tags
+#define DT_NULL 0
+#define DT_NEEDED 1
+#define DT_PLTRELSZ 2
+#define DT_PLTGOT 3
+#define DT_HASH 4
+#define DT_STRTAB 5
+#define DT_SYMTAB 6
+#define DT_RELA 7
+#define DT_RELASZ 8
+#define DT_RELAENT 9
+#define DT_STRSZ 10
+#define DT_SYMENT 11
+#define DT_INIT 12
+#define DT_FINI 13
+#define DT_SONAME 14
+#define DT_RPATH 15
+#define DT_SYMBOLIC 16
+#define DT_REL 17
+#define DT_RELSZ 18
+#define DT_RELENT 19
+#define DT_PLTREL 20
+#define DT_DEBUG 21
+#define DT_TEXTREL 22
+#define DT_JMPREL 23
+#define DT_BIND_NOW 24
+#define DT_INIT_ARRAY 25
+#define DT_FINI_ARRAY 26
+#define DT_INIT_ARRAYSZ 27
+#define DT_FINI_ARRAYSZ 28
+#define DT_RUNPATH 29
+#define DT_FLAGS 30
+#define DT_ENCODING 32
+#define DT_PREINIT_ARRAY 32
+#define DT_PREINIT_ARRAYSZ 33
+#define DT_MAXPOSTAGS 34
+#define DT_LOOS 0x6000000D
+#define DT_HIOS 0x6ffff000
+#define DT_LOPROC 0x70000000
+#define DT_HIPROC 0x7FFFFFFF
+
+// DT_FLAGS values
+#define DF_ORIGIN 0x1
+#define DF_SYMBOLIC 0x2
+#define DF_TEXTREL 0x4
+#define DF_BIND_NOW 0x8
+#define DF_STATIC_TLS 0x10
+
+// ELF file header
+struct Elf32_Ehdr
+{
+ unsigned char e_ident[EI_NIDENT];
+ Elf_Half e_type;
+ Elf_Half e_machine;
+ Elf_Word e_version;
+ Elf32_Addr e_entry;
+ Elf32_Off e_phoff;
+ Elf32_Off e_shoff;
+ Elf_Word e_flags;
+ Elf_Half e_ehsize;
+ Elf_Half e_phentsize;
+ Elf_Half e_phnum;
+ Elf_Half e_shentsize;
+ Elf_Half e_shnum;
+ Elf_Half e_shstrndx;
+};
+
+struct Elf64_Ehdr
+{
+ unsigned char e_ident[EI_NIDENT];
+ Elf_Half e_type;
+ Elf_Half e_machine;
+ Elf_Word e_version;
+ Elf64_Addr e_entry;
+ Elf64_Off e_phoff;
+ Elf64_Off e_shoff;
+ Elf_Word e_flags;
+ Elf_Half e_ehsize;
+ Elf_Half e_phentsize;
+ Elf_Half e_phnum;
+ Elf_Half e_shentsize;
+ Elf_Half e_shnum;
+ Elf_Half e_shstrndx;
+};
+
+// Section header
+struct Elf32_Shdr
+{
+ Elf_Word sh_name;
+ Elf_Word sh_type;
+ Elf_Word sh_flags;
+ Elf32_Addr sh_addr;
+ Elf32_Off sh_offset;
+ Elf_Word sh_size;
+ Elf_Word sh_link;
+ Elf_Word sh_info;
+ Elf_Word sh_addralign;
+ Elf_Word sh_entsize;
+};
+
+struct Elf64_Shdr
+{
+ Elf_Word sh_name;
+ Elf_Word sh_type;
+ Elf_Xword sh_flags;
+ Elf64_Addr sh_addr;
+ Elf64_Off sh_offset;
+ Elf_Xword sh_size;
+ Elf_Word sh_link;
+ Elf_Word sh_info;
+ Elf_Xword sh_addralign;
+ Elf_Xword sh_entsize;
+};
+
+// Segment header
+struct Elf32_Phdr
+{
+ Elf_Word p_type;
+ Elf32_Off p_offset;
+ Elf32_Addr p_vaddr;
+ Elf32_Addr p_paddr;
+ Elf_Word p_filesz;
+ Elf_Word p_memsz;
+ Elf_Word p_flags;
+ Elf_Word p_align;
+};
+
+struct Elf64_Phdr
+{
+ Elf_Word p_type;
+ Elf_Word p_flags;
+ Elf64_Off p_offset;
+ Elf64_Addr p_vaddr;
+ Elf64_Addr p_paddr;
+ Elf_Xword p_filesz;
+ Elf_Xword p_memsz;
+ Elf_Xword p_align;
+};
+
+// Symbol table entry
+struct Elf32_Sym
+{
+ Elf_Word st_name;
+ Elf32_Addr st_value;
+ Elf_Word st_size;
+ unsigned char st_info;
+ unsigned char st_other;
+ Elf_Half st_shndx;
+};
+
+struct Elf64_Sym
+{
+ Elf_Word st_name;
+ unsigned char st_info;
+ unsigned char st_other;
+ Elf_Half st_shndx;
+ Elf64_Addr st_value;
+ Elf_Xword st_size;
+};
+
+#define ELF_ST_BIND( i ) ( ( i ) >> 4 )
+#define ELF_ST_TYPE( i ) ( (i)&0xf )
+#define ELF_ST_INFO( b, t ) ( ( ( b ) << 4 ) + ( (t)&0xf ) )
+
+#define ELF_ST_VISIBILITY( o ) ( (o)&0x3 )
+
+// Relocation entries
+struct Elf32_Rel
+{
+ Elf32_Addr r_offset;
+ Elf_Word r_info;
+};
+
+struct Elf32_Rela
+{
+ Elf32_Addr r_offset;
+ Elf_Word r_info;
+ Elf_Sword r_addend;
+};
+
+struct Elf64_Rel
+{
+ Elf64_Addr r_offset;
+ Elf_Xword r_info;
+};
+
+struct Elf64_Rela
+{
+ Elf64_Addr r_offset;
+ Elf_Xword r_info;
+ Elf_Sxword r_addend;
+};
+
+#define ELF32_R_SYM( i ) ( ( i ) >> 8 )
+#define ELF32_R_TYPE( i ) ( (unsigned char)( i ) )
+#define ELF32_R_INFO( s, t ) ( ( ( s ) << 8 ) + (unsigned char)( t ) )
+
+#define ELF64_R_SYM( i ) ( ( i ) >> 32 )
+#define ELF64_R_TYPE( i ) ( (i)&0xffffffffL )
+#define ELF64_R_INFO( s, t ) \
+ ( ( ( ( int64_t )( s ) ) << 32 ) + ( (t)&0xffffffffL ) )
+
+// Dynamic structure
+struct Elf32_Dyn
+{
+ Elf_Sword d_tag;
+ union {
+ Elf_Word d_val;
+ Elf32_Addr d_ptr;
+ } d_un;
+};
+
+struct Elf64_Dyn
+{
+ Elf_Sxword d_tag;
+ union {
+ Elf_Xword d_val;
+ Elf64_Addr d_ptr;
+ } d_un;
+};
+
+} // namespace ELFIO
+
+#endif // ELFTYPES_H
+
+/*** End of inlined file: elf_types.hpp ***/
+
+
+/*** Start of inlined file: elfio_version.hpp ***/
+#define ELFIO_VERSION "3.8"
+
+/*** End of inlined file: elfio_version.hpp ***/
+
+
+/*** Start of inlined file: elfio_utils.hpp ***/
+#ifndef ELFIO_UTILS_HPP
+#define ELFIO_UTILS_HPP
+
+#define ELFIO_GET_ACCESS( TYPE, NAME, FIELD ) \
+ TYPE get_##NAME() const { return ( *convertor )( FIELD ); }
+#define ELFIO_SET_ACCESS( TYPE, NAME, FIELD ) \
+ void set_##NAME( TYPE value ) \
+ { \
+ FIELD = value; \
+ FIELD = ( *convertor )( FIELD ); \
+ }
+#define ELFIO_GET_SET_ACCESS( TYPE, NAME, FIELD ) \
+ TYPE get_##NAME() const { return ( *convertor )( FIELD ); } \
+ void set_##NAME( TYPE value ) \
+ { \
+ FIELD = value; \
+ FIELD = ( *convertor )( FIELD ); \
+ }
+
+#define ELFIO_GET_ACCESS_DECL( TYPE, NAME ) virtual TYPE get_##NAME() const = 0
+
+#define ELFIO_SET_ACCESS_DECL( TYPE, NAME ) \
+ virtual void set_##NAME( TYPE value ) = 0
+
+#define ELFIO_GET_SET_ACCESS_DECL( TYPE, NAME ) \
+ virtual TYPE get_##NAME() const = 0; \
+ virtual void set_##NAME( TYPE value ) = 0
+
+namespace ELFIO {
+
+//------------------------------------------------------------------------------
+class endianess_convertor
+{
+ public:
+ //------------------------------------------------------------------------------
+ endianess_convertor() { need_conversion = false; }
+
+ //------------------------------------------------------------------------------
+ void setup( unsigned char elf_file_encoding )
+ {
+ need_conversion = ( elf_file_encoding != get_host_encoding() );
+ }
+
+ //------------------------------------------------------------------------------
+ uint64_t operator()( uint64_t value ) const
+ {
+ if ( !need_conversion ) {
+ return value;
+ }
+ value = ( ( value & 0x00000000000000FFull ) << 56 ) |
+ ( ( value & 0x000000000000FF00ull ) << 40 ) |
+ ( ( value & 0x0000000000FF0000ull ) << 24 ) |
+ ( ( value & 0x00000000FF000000ull ) << 8 ) |
+ ( ( value & 0x000000FF00000000ull ) >> 8 ) |
+ ( ( value & 0x0000FF0000000000ull ) >> 24 ) |
+ ( ( value & 0x00FF000000000000ull ) >> 40 ) |
+ ( ( value & 0xFF00000000000000ull ) >> 56 );
+
+ return value;
+ }
+
+ //------------------------------------------------------------------------------
+ int64_t operator()( int64_t value ) const
+ {
+ if ( !need_conversion ) {
+ return value;
+ }
+ return ( int64_t )( *this )( (uint64_t)value );
+ }
+
+ //------------------------------------------------------------------------------
+ uint32_t operator()( uint32_t value ) const
+ {
+ if ( !need_conversion ) {
+ return value;
+ }
+ value =
+ ( ( value & 0x000000FF ) << 24 ) | ( ( value & 0x0000FF00 ) << 8 ) |
+ ( ( value & 0x00FF0000 ) >> 8 ) | ( ( value & 0xFF000000 ) >> 24 );
+
+ return value;
+ }
+
+ //------------------------------------------------------------------------------
+ int32_t operator()( int32_t value ) const
+ {
+ if ( !need_conversion ) {
+ return value;
+ }
+ return ( int32_t )( *this )( (uint32_t)value );
+ }
+
+ //------------------------------------------------------------------------------
+ uint16_t operator()( uint16_t value ) const
+ {
+ if ( !need_conversion ) {
+ return value;
+ }
+ value = ( ( value & 0x00FF ) << 8 ) | ( ( value & 0xFF00 ) >> 8 );
+
+ return value;
+ }
+
+ //------------------------------------------------------------------------------
+ int16_t operator()( int16_t value ) const
+ {
+ if ( !need_conversion ) {
+ return value;
+ }
+ return ( int16_t )( *this )( (uint16_t)value );
+ }
+
+ //------------------------------------------------------------------------------
+ int8_t operator()( int8_t value ) const { return value; }
+
+ //------------------------------------------------------------------------------
+ uint8_t operator()( uint8_t value ) const { return value; }
+
+ //------------------------------------------------------------------------------
+ private:
+ //------------------------------------------------------------------------------
+ unsigned char get_host_encoding() const
+ {
+ static const int tmp = 1;
+ if ( 1 == *(const char*)&tmp ) {
+ return ELFDATA2LSB;
+ }
+ else {
+ return ELFDATA2MSB;
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ bool need_conversion;
+};
+
+//------------------------------------------------------------------------------
+inline uint32_t elf_hash( const unsigned char* name )
+{
+ uint32_t h = 0, g;
+ while ( *name ) {
+ h = ( h << 4 ) + *name++;
+ g = h & 0xf0000000;
+ if ( g != 0 )
+ h ^= g >> 24;
+ h &= ~g;
+ }
+ return h;
+}
+
+} // namespace ELFIO
+
+#endif // ELFIO_UTILS_HPP
+
+/*** End of inlined file: elfio_utils.hpp ***/
+
+
+/*** Start of inlined file: elfio_header.hpp ***/
+#ifndef ELF_HEADER_HPP
+#define ELF_HEADER_HPP
+
+#include <iostream>
+
+namespace ELFIO {
+
+class elf_header
+{
+ public:
+ virtual ~elf_header(){};
+ virtual bool load( std::istream& stream ) = 0;
+ virtual bool save( std::ostream& stream ) const = 0;
+
+ // ELF header functions
+ ELFIO_GET_ACCESS_DECL( unsigned char, class );
+ ELFIO_GET_ACCESS_DECL( unsigned char, elf_version );
+ ELFIO_GET_ACCESS_DECL( unsigned char, encoding );
+ ELFIO_GET_ACCESS_DECL( Elf_Half, header_size );
+ ELFIO_GET_ACCESS_DECL( Elf_Half, section_entry_size );
+ ELFIO_GET_ACCESS_DECL( Elf_Half, segment_entry_size );
+
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Word, version );
+ ELFIO_GET_SET_ACCESS_DECL( unsigned char, os_abi );
+ ELFIO_GET_SET_ACCESS_DECL( unsigned char, abi_version );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Half, type );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Half, machine );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Word, flags );
+ ELFIO_GET_SET_ACCESS_DECL( Elf64_Addr, entry );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Half, sections_num );
+ ELFIO_GET_SET_ACCESS_DECL( Elf64_Off, sections_offset );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Half, segments_num );
+ ELFIO_GET_SET_ACCESS_DECL( Elf64_Off, segments_offset );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Half, section_name_str_index );
+};
+
+template <class T> struct elf_header_impl_types;
+template <> struct elf_header_impl_types<Elf32_Ehdr>
+{
+ typedef Elf32_Phdr Phdr_type;
+ typedef Elf32_Shdr Shdr_type;
+ static const unsigned char file_class = ELFCLASS32;
+};
+template <> struct elf_header_impl_types<Elf64_Ehdr>
+{
+ typedef Elf64_Phdr Phdr_type;
+ typedef Elf64_Shdr Shdr_type;
+ static const unsigned char file_class = ELFCLASS64;
+};
+
+template <class T> class elf_header_impl : public elf_header
+{
+ public:
+ //------------------------------------------------------------------------------
+ elf_header_impl( endianess_convertor* convertor_, unsigned char encoding )
+ {
+ convertor = convertor_;
+
+ std::fill_n( reinterpret_cast<char*>( &header ), sizeof( header ),
+ '\0' );
+
+ header.e_ident[EI_MAG0] = ELFMAG0;
+ header.e_ident[EI_MAG1] = ELFMAG1;
+ header.e_ident[EI_MAG2] = ELFMAG2;
+ header.e_ident[EI_MAG3] = ELFMAG3;
+ header.e_ident[EI_CLASS] = elf_header_impl_types<T>::file_class;
+ header.e_ident[EI_DATA] = encoding;
+ header.e_ident[EI_VERSION] = EV_CURRENT;
+ header.e_version = ( *convertor )( (Elf_Word)EV_CURRENT );
+ header.e_ehsize = ( sizeof( header ) );
+ header.e_ehsize = ( *convertor )( header.e_ehsize );
+ header.e_shstrndx = ( *convertor )( (Elf_Half)1 );
+ header.e_phentsize =
+ sizeof( typename elf_header_impl_types<T>::Phdr_type );
+ header.e_shentsize =
+ sizeof( typename elf_header_impl_types<T>::Shdr_type );
+ header.e_phentsize = ( *convertor )( header.e_phentsize );
+ header.e_shentsize = ( *convertor )( header.e_shentsize );
+ }
+
+ //------------------------------------------------------------------------------
+ bool load( std::istream& stream )
+ {
+ stream.seekg( 0 );
+ stream.read( reinterpret_cast<char*>( &header ), sizeof( header ) );
+
+ return ( stream.gcount() == sizeof( header ) );
+ }
+
+ //------------------------------------------------------------------------------
+ bool save( std::ostream& stream ) const
+ {
+ stream.seekp( 0 );
+ stream.write( reinterpret_cast<const char*>( &header ),
+ sizeof( header ) );
+
+ return stream.good();
+ }
+
+ //------------------------------------------------------------------------------
+ // ELF header functions
+ ELFIO_GET_ACCESS( unsigned char, class, header.e_ident[EI_CLASS] );
+ ELFIO_GET_ACCESS( unsigned char, elf_version, header.e_ident[EI_VERSION] );
+ ELFIO_GET_ACCESS( unsigned char, encoding, header.e_ident[EI_DATA] );
+ ELFIO_GET_ACCESS( Elf_Half, header_size, header.e_ehsize );
+ ELFIO_GET_ACCESS( Elf_Half, section_entry_size, header.e_shentsize );
+ ELFIO_GET_ACCESS( Elf_Half, segment_entry_size, header.e_phentsize );
+
+ ELFIO_GET_SET_ACCESS( Elf_Word, version, header.e_version );
+ ELFIO_GET_SET_ACCESS( unsigned char, os_abi, header.e_ident[EI_OSABI] );
+ ELFIO_GET_SET_ACCESS( unsigned char,
+ abi_version,
+ header.e_ident[EI_ABIVERSION] );
+ ELFIO_GET_SET_ACCESS( Elf_Half, type, header.e_type );
+ ELFIO_GET_SET_ACCESS( Elf_Half, machine, header.e_machine );
+ ELFIO_GET_SET_ACCESS( Elf_Word, flags, header.e_flags );
+ ELFIO_GET_SET_ACCESS( Elf_Half, section_name_str_index, header.e_shstrndx );
+ ELFIO_GET_SET_ACCESS( Elf64_Addr, entry, header.e_entry );
+ ELFIO_GET_SET_ACCESS( Elf_Half, sections_num, header.e_shnum );
+ ELFIO_GET_SET_ACCESS( Elf64_Off, sections_offset, header.e_shoff );
+ ELFIO_GET_SET_ACCESS( Elf_Half, segments_num, header.e_phnum );
+ ELFIO_GET_SET_ACCESS( Elf64_Off, segments_offset, header.e_phoff );
+
+ private:
+ T header;
+ endianess_convertor* convertor;
+};
+
+} // namespace ELFIO
+
+#endif // ELF_HEADER_HPP
+
+/*** End of inlined file: elfio_header.hpp ***/
+
+
+/*** Start of inlined file: elfio_section.hpp ***/
+#ifndef ELFIO_SECTION_HPP
+#define ELFIO_SECTION_HPP
+
+#include <string>
+#include <iostream>
+#include <new>
+
+namespace ELFIO {
+
+class section
+{
+ friend class elfio;
+
+ public:
+ virtual ~section(){};
+
+ ELFIO_GET_ACCESS_DECL( Elf_Half, index );
+ ELFIO_GET_SET_ACCESS_DECL( std::string, name );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Word, type );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Xword, flags );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Word, info );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Word, link );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Xword, addr_align );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Xword, entry_size );
+ ELFIO_GET_SET_ACCESS_DECL( Elf64_Addr, address );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Xword, size );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Word, name_string_offset );
+ ELFIO_GET_ACCESS_DECL( Elf64_Off, offset );
+
+ virtual const char* get_data() const = 0;
+ virtual void set_data( const char* pData, Elf_Word size ) = 0;
+ virtual void set_data( const std::string& data ) = 0;
+ virtual void append_data( const char* pData, Elf_Word size ) = 0;
+ virtual void append_data( const std::string& data ) = 0;
+ virtual size_t get_stream_size() const = 0;
+ virtual void set_stream_size( size_t value ) = 0;
+
+ protected:
+ ELFIO_SET_ACCESS_DECL( Elf64_Off, offset );
+ ELFIO_SET_ACCESS_DECL( Elf_Half, index );
+
+ virtual void load( std::istream& stream, std::streampos header_offset ) = 0;
+ virtual void save( std::ostream& stream,
+ std::streampos header_offset,
+ std::streampos data_offset ) = 0;
+ virtual bool is_address_initialized() const = 0;
+};
+
+template <class T> class section_impl : public section
+{
+ public:
+ //------------------------------------------------------------------------------
+ section_impl( const endianess_convertor* convertor_ )
+ : convertor( convertor_ )
+ {
+ std::fill_n( reinterpret_cast<char*>( &header ), sizeof( header ),
+ '\0' );
+ is_address_set = false;
+ data = 0;
+ data_size = 0;
+ index = 0;
+ stream_size = 0;
+ }
+
+ //------------------------------------------------------------------------------
+ ~section_impl() { delete[] data; }
+
+ //------------------------------------------------------------------------------
+ // Section info functions
+ ELFIO_GET_SET_ACCESS( Elf_Word, type, header.sh_type );
+ ELFIO_GET_SET_ACCESS( Elf_Xword, flags, header.sh_flags );
+ ELFIO_GET_SET_ACCESS( Elf_Xword, size, header.sh_size );
+ ELFIO_GET_SET_ACCESS( Elf_Word, link, header.sh_link );
+ ELFIO_GET_SET_ACCESS( Elf_Word, info, header.sh_info );
+ ELFIO_GET_SET_ACCESS( Elf_Xword, addr_align, header.sh_addralign );
+ ELFIO_GET_SET_ACCESS( Elf_Xword, entry_size, header.sh_entsize );
+ ELFIO_GET_SET_ACCESS( Elf_Word, name_string_offset, header.sh_name );
+ ELFIO_GET_ACCESS( Elf64_Addr, address, header.sh_addr );
+
+ //------------------------------------------------------------------------------
+ Elf_Half get_index() const { return index; }
+
+ //------------------------------------------------------------------------------
+ std::string get_name() const { return name; }
+
+ //------------------------------------------------------------------------------
+ void set_name( std::string name_ ) { name = name_; }
+
+ //------------------------------------------------------------------------------
+ void set_address( Elf64_Addr value )
+ {
+ header.sh_addr = value;
+ header.sh_addr = ( *convertor )( header.sh_addr );
+ is_address_set = true;
+ }
+
+ //------------------------------------------------------------------------------
+ bool is_address_initialized() const { return is_address_set; }
+
+ //------------------------------------------------------------------------------
+ const char* get_data() const { return data; }
+
+ //------------------------------------------------------------------------------
+ void set_data( const char* raw_data, Elf_Word size )
+ {
+ if ( get_type() != SHT_NOBITS ) {
+ delete[] data;
+ data = new ( std::nothrow ) char[size];
+ if ( 0 != data && 0 != raw_data ) {
+ data_size = size;
+ std::copy( raw_data, raw_data + size, data );
+ }
+ else {
+ data_size = 0;
+ }
+ }
+
+ set_size( data_size );
+ }
+
+ //------------------------------------------------------------------------------
+ void set_data( const std::string& str_data )
+ {
+ return set_data( str_data.c_str(), (Elf_Word)str_data.size() );
+ }
+
+ //------------------------------------------------------------------------------
+ void append_data( const char* raw_data, Elf_Word size )
+ {
+ if ( get_type() != SHT_NOBITS ) {
+ if ( get_size() + size < data_size ) {
+ std::copy( raw_data, raw_data + size, data + get_size() );
+ }
+ else {
+ data_size = 2 * ( data_size + size );
+ char* new_data = new ( std::nothrow ) char[data_size];
+
+ if ( 0 != new_data ) {
+ std::copy( data, data + get_size(), new_data );
+ std::copy( raw_data, raw_data + size,
+ new_data + get_size() );
+ delete[] data;
+ data = new_data;
+ }
+ else {
+ size = 0;
+ }
+ }
+ set_size( get_size() + size );
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ void append_data( const std::string& str_data )
+ {
+ return append_data( str_data.c_str(), (Elf_Word)str_data.size() );
+ }
+
+ //------------------------------------------------------------------------------
+ protected:
+ //------------------------------------------------------------------------------
+ ELFIO_GET_SET_ACCESS( Elf64_Off, offset, header.sh_offset );
+
+ //------------------------------------------------------------------------------
+ void set_index( Elf_Half value ) { index = value; }
+
+ //------------------------------------------------------------------------------
+ void load( std::istream& stream, std::streampos header_offset )
+ {
+ std::fill_n( reinterpret_cast<char*>( &header ), sizeof( header ),
+ '\0' );
+
+ stream.seekg( 0, stream.end );
+ set_stream_size( stream.tellg() );
+
+ stream.seekg( header_offset );
+ stream.read( reinterpret_cast<char*>( &header ), sizeof( header ) );
+
+ Elf_Xword size = get_size();
+ if ( 0 == data && SHT_NULL != get_type() && SHT_NOBITS != get_type() &&
+ size < get_stream_size() ) {
+ data = new ( std::nothrow ) char[size + 1];
+
+ if ( ( 0 != size ) && ( 0 != data ) ) {
+ stream.seekg( ( *convertor )( header.sh_offset ) );
+ stream.read( data, size );
+ data[size] = 0; // Ensure data is ended with 0 to avoid oob read
+ data_size = size;
+ }
+ else {
+ data_size = 0;
+ }
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ void save( std::ostream& stream,
+ std::streampos header_offset,
+ std::streampos data_offset )
+ {
+ if ( 0 != get_index() ) {
+ header.sh_offset = data_offset;
+ header.sh_offset = ( *convertor )( header.sh_offset );
+ }
+
+ save_header( stream, header_offset );
+ if ( get_type() != SHT_NOBITS && get_type() != SHT_NULL &&
+ get_size() != 0 && data != 0 ) {
+ save_data( stream, data_offset );
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ //------------------------------------------------------------------------------
+ void save_header( std::ostream& stream, std::streampos header_offset ) const
+ {
+ stream.seekp( header_offset );
+ stream.write( reinterpret_cast<const char*>( &header ),
+ sizeof( header ) );
+ }
+
+ //------------------------------------------------------------------------------
+ void save_data( std::ostream& stream, std::streampos data_offset ) const
+ {
+ stream.seekp( data_offset );
+ stream.write( get_data(), get_size() );
+ }
+
+ //------------------------------------------------------------------------------
+ size_t get_stream_size() const { return stream_size; }
+
+ //------------------------------------------------------------------------------
+ void set_stream_size( size_t value ) { stream_size = value; }
+
+ //------------------------------------------------------------------------------
+ private:
+ T header;
+ Elf_Half index;
+ std::string name;
+ char* data;
+ Elf_Word data_size;
+ const endianess_convertor* convertor;
+ bool is_address_set;
+ size_t stream_size;
+};
+
+} // namespace ELFIO
+
+#endif // ELFIO_SECTION_HPP
+
+/*** End of inlined file: elfio_section.hpp ***/
+
+
+/*** Start of inlined file: elfio_segment.hpp ***/
+#ifndef ELFIO_SEGMENT_HPP
+#define ELFIO_SEGMENT_HPP
+
+#include <iostream>
+#include <vector>
+#include <new>
+
+namespace ELFIO {
+
+class segment
+{
+ friend class elfio;
+
+ public:
+ virtual ~segment(){};
+
+ ELFIO_GET_ACCESS_DECL( Elf_Half, index );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Word, type );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Word, flags );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Xword, align );
+ ELFIO_GET_SET_ACCESS_DECL( Elf64_Addr, virtual_address );
+ ELFIO_GET_SET_ACCESS_DECL( Elf64_Addr, physical_address );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Xword, file_size );
+ ELFIO_GET_SET_ACCESS_DECL( Elf_Xword, memory_size );
+ ELFIO_GET_ACCESS_DECL( Elf64_Off, offset );
+
+ virtual const char* get_data() const = 0;
+
+ virtual Elf_Half add_section_index( Elf_Half index,
+ Elf_Xword addr_align ) = 0;
+ virtual Elf_Half get_sections_num() const = 0;
+ virtual Elf_Half get_section_index_at( Elf_Half num ) const = 0;
+ virtual bool is_offset_initialized() const = 0;
+
+ protected:
+ ELFIO_SET_ACCESS_DECL( Elf64_Off, offset );
+ ELFIO_SET_ACCESS_DECL( Elf_Half, index );
+
+ virtual const std::vector<Elf_Half>& get_sections() const = 0;
+ virtual void load( std::istream& stream, std::streampos header_offset ) = 0;
+ virtual void save( std::ostream& stream,
+ std::streampos header_offset,
+ std::streampos data_offset ) = 0;
+};
+
+//------------------------------------------------------------------------------
+template <class T> class segment_impl : public segment
+{
+ public:
+ //------------------------------------------------------------------------------
+ segment_impl( endianess_convertor* convertor_ )
+ : stream_size( 0 ), index( 0 ), data( 0 ), convertor( convertor_ )
+ {
+ is_offset_set = false;
+ std::fill_n( reinterpret_cast<char*>( &ph ), sizeof( ph ), '\0' );
+ }
+
+ //------------------------------------------------------------------------------
+ virtual ~segment_impl() { delete[] data; }
+
+ //------------------------------------------------------------------------------
+ // Section info functions
+ ELFIO_GET_SET_ACCESS( Elf_Word, type, ph.p_type );
+ ELFIO_GET_SET_ACCESS( Elf_Word, flags, ph.p_flags );
+ ELFIO_GET_SET_ACCESS( Elf_Xword, align, ph.p_align );
+ ELFIO_GET_SET_ACCESS( Elf64_Addr, virtual_address, ph.p_vaddr );
+ ELFIO_GET_SET_ACCESS( Elf64_Addr, physical_address, ph.p_paddr );
+ ELFIO_GET_SET_ACCESS( Elf_Xword, file_size, ph.p_filesz );
+ ELFIO_GET_SET_ACCESS( Elf_Xword, memory_size, ph.p_memsz );
+ ELFIO_GET_ACCESS( Elf64_Off, offset, ph.p_offset );
+ size_t stream_size;
+
+ //------------------------------------------------------------------------------
+ size_t get_stream_size() const { return stream_size; }
+
+ //------------------------------------------------------------------------------
+ void set_stream_size( size_t value ) { stream_size = value; }
+
+ //------------------------------------------------------------------------------
+ Elf_Half get_index() const { return index; }
+
+ //------------------------------------------------------------------------------
+ const char* get_data() const { return data; }
+
+ //------------------------------------------------------------------------------
+ Elf_Half add_section_index( Elf_Half sec_index, Elf_Xword addr_align )
+ {
+ sections.push_back( sec_index );
+ if ( addr_align > get_align() ) {
+ set_align( addr_align );
+ }
+
+ return (Elf_Half)sections.size();
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Half get_sections_num() const { return (Elf_Half)sections.size(); }
+
+ //------------------------------------------------------------------------------
+ Elf_Half get_section_index_at( Elf_Half num ) const
+ {
+ if ( num < sections.size() ) {
+ return sections[num];
+ }
+
+ return Elf_Half( -1 );
+ }
+
+ //------------------------------------------------------------------------------
+ protected:
+ //------------------------------------------------------------------------------
+
+ //------------------------------------------------------------------------------
+ void set_offset( Elf64_Off value )
+ {
+ ph.p_offset = value;
+ ph.p_offset = ( *convertor )( ph.p_offset );
+ is_offset_set = true;
+ }
+
+ //------------------------------------------------------------------------------
+ bool is_offset_initialized() const { return is_offset_set; }
+
+ //------------------------------------------------------------------------------
+ const std::vector<Elf_Half>& get_sections() const { return sections; }
+
+ //------------------------------------------------------------------------------
+ void set_index( Elf_Half value ) { index = value; }
+
+ //------------------------------------------------------------------------------
+ void load( std::istream& stream, std::streampos header_offset )
+ {
+
+ stream.seekg( 0, stream.end );
+ set_stream_size( stream.tellg() );
+
+ stream.seekg( header_offset );
+ stream.read( reinterpret_cast<char*>( &ph ), sizeof( ph ) );
+ is_offset_set = true;
+
+ if ( PT_NULL != get_type() && 0 != get_file_size() ) {
+ stream.seekg( ( *convertor )( ph.p_offset ) );
+ Elf_Xword size = get_file_size();
+
+ if ( size > get_stream_size() ) {
+ data = 0;
+ }
+ else {
+ data = new (std::nothrow) char[size + 1];
+
+ if ( 0 != data ) {
+ stream.read( data, size );
+ data[size] = 0;
+ }
+ }
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ void save( std::ostream& stream,
+ std::streampos header_offset,
+ std::streampos data_offset )
+ {
+ ph.p_offset = data_offset;
+ ph.p_offset = ( *convertor )( ph.p_offset );
+ stream.seekp( header_offset );
+ stream.write( reinterpret_cast<const char*>( &ph ), sizeof( ph ) );
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ T ph;
+ Elf_Half index;
+ char* data;
+ std::vector<Elf_Half> sections;
+ endianess_convertor* convertor;
+ bool is_offset_set;
+};
+
+} // namespace ELFIO
+
+#endif // ELFIO_SEGMENT_HPP
+
+/*** End of inlined file: elfio_segment.hpp ***/
+
+
+/*** Start of inlined file: elfio_strings.hpp ***/
+#ifndef ELFIO_STRINGS_HPP
+#define ELFIO_STRINGS_HPP
+
+#include <cstdlib>
+#include <cstring>
+#include <string>
+
+namespace ELFIO {
+
+//------------------------------------------------------------------------------
+template <class S> class string_section_accessor_template
+{
+ public:
+ //------------------------------------------------------------------------------
+ string_section_accessor_template( S* section_ ) : string_section( section_ )
+ {
+ }
+
+ //------------------------------------------------------------------------------
+ const char* get_string( Elf_Word index ) const
+ {
+ if ( string_section ) {
+ if ( index < string_section->get_size() ) {
+ const char* data = string_section->get_data();
+ if ( 0 != data ) {
+ return data + index;
+ }
+ }
+ }
+
+ return 0;
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Word add_string( const char* str )
+ {
+ Elf_Word current_position = 0;
+
+ if ( string_section ) {
+ // Strings are addeded to the end of the current section data
+ current_position = (Elf_Word)string_section->get_size();
+
+ if ( current_position == 0 ) {
+ char empty_string = '\0';
+ string_section->append_data( &empty_string, 1 );
+ current_position++;
+ }
+ string_section->append_data( str,
+ (Elf_Word)std::strlen( str ) + 1 );
+ }
+
+ return current_position;
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Word add_string( const std::string& str )
+ {
+ return add_string( str.c_str() );
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ S* string_section;
+};
+
+using string_section_accessor = string_section_accessor_template<section>;
+using const_string_section_accessor =
+ string_section_accessor_template<const section>;
+
+} // namespace ELFIO
+
+#endif // ELFIO_STRINGS_HPP
+
+/*** End of inlined file: elfio_strings.hpp ***/
+
+#define ELFIO_HEADER_ACCESS_GET( TYPE, FNAME ) \
+ TYPE get_##FNAME() const { return header ? ( header->get_##FNAME() ) : 0; }
+
+#define ELFIO_HEADER_ACCESS_GET_SET( TYPE, FNAME ) \
+ TYPE get_##FNAME() const \
+ { \
+ return header ? ( header->get_##FNAME() ) : 0; \
+ } \
+ void set_##FNAME( TYPE val ) \
+ { \
+ if ( header ) { \
+ header->set_##FNAME( val ); \
+ } \
+ }
+
+namespace ELFIO {
+
+//------------------------------------------------------------------------------
+class elfio
+{
+ public:
+ //------------------------------------------------------------------------------
+ elfio() : sections( this ), segments( this )
+ {
+ header = 0;
+ current_file_pos = 0;
+ create( ELFCLASS32, ELFDATA2LSB );
+ }
+
+ //------------------------------------------------------------------------------
+ ~elfio() { clean(); }
+
+ //------------------------------------------------------------------------------
+ void create( unsigned char file_class, unsigned char encoding )
+ {
+ clean();
+ convertor.setup( encoding );
+ header = create_header( file_class, encoding );
+ create_mandatory_sections();
+ }
+
+ //------------------------------------------------------------------------------
+ bool load( const std::string& file_name )
+ {
+ std::ifstream stream;
+ stream.open( file_name.c_str(), std::ios::in | std::ios::binary );
+ if ( !stream ) {
+ return false;
+ }
+
+ return load( stream );
+ }
+
+ //------------------------------------------------------------------------------
+ bool load( std::istream& stream )
+ {
+ clean();
+
+ unsigned char e_ident[EI_NIDENT];
+ // Read ELF file signature
+ stream.read( reinterpret_cast<char*>( &e_ident ), sizeof( e_ident ) );
+
+ // Is it ELF file?
+ if ( stream.gcount() != sizeof( e_ident ) ||
+ e_ident[EI_MAG0] != ELFMAG0 || e_ident[EI_MAG1] != ELFMAG1 ||
+ e_ident[EI_MAG2] != ELFMAG2 || e_ident[EI_MAG3] != ELFMAG3 ) {
+ return false;
+ }
+
+ if ( ( e_ident[EI_CLASS] != ELFCLASS64 ) &&
+ ( e_ident[EI_CLASS] != ELFCLASS32 ) ) {
+ return false;
+ }
+
+ convertor.setup( e_ident[EI_DATA] );
+ header = create_header( e_ident[EI_CLASS], e_ident[EI_DATA] );
+ if ( 0 == header ) {
+ return false;
+ }
+ if ( !header->load( stream ) ) {
+ return false;
+ }
+
+ load_sections( stream );
+ bool is_still_good = load_segments( stream );
+ return is_still_good;
+ }
+
+ //------------------------------------------------------------------------------
+ bool save( const std::string& file_name )
+ {
+ std::ofstream stream;
+ stream.open( file_name.c_str(), std::ios::out | std::ios::binary );
+ if ( !stream ) {
+ return false;
+ }
+
+ return save( stream );
+ }
+
+ //------------------------------------------------------------------------------
+ bool save( std::ostream& stream )
+ {
+ if ( !stream || !header ) {
+ return false;
+ }
+
+ bool is_still_good = true;
+ // Define layout specific header fields
+ // The position of the segment table is fixed after the header.
+ // The position of the section table is variable and needs to be fixed
+ // before saving.
+ header->set_segments_num( segments.size() );
+ header->set_segments_offset( segments.size() ? header->get_header_size()
+ : 0 );
+ header->set_sections_num( sections.size() );
+ header->set_sections_offset( 0 );
+
+ // Layout the first section right after the segment table
+ current_file_pos = header->get_header_size() +
+ header->get_segment_entry_size() *
+ (Elf_Xword)header->get_segments_num();
+
+ calc_segment_alignment();
+
+ is_still_good = layout_segments_and_their_sections();
+ is_still_good = is_still_good && layout_sections_without_segments();
+ is_still_good = is_still_good && layout_section_table();
+
+ is_still_good = is_still_good && save_header( stream );
+ is_still_good = is_still_good && save_sections( stream );
+ is_still_good = is_still_good && save_segments( stream );
+
+ return is_still_good;
+ }
+
+ //------------------------------------------------------------------------------
+ // ELF header access functions
+ ELFIO_HEADER_ACCESS_GET( unsigned char, class );
+ ELFIO_HEADER_ACCESS_GET( unsigned char, elf_version );
+ ELFIO_HEADER_ACCESS_GET( unsigned char, encoding );
+ ELFIO_HEADER_ACCESS_GET( Elf_Word, version );
+ ELFIO_HEADER_ACCESS_GET( Elf_Half, header_size );
+ ELFIO_HEADER_ACCESS_GET( Elf_Half, section_entry_size );
+ ELFIO_HEADER_ACCESS_GET( Elf_Half, segment_entry_size );
+
+ ELFIO_HEADER_ACCESS_GET_SET( unsigned char, os_abi );
+ ELFIO_HEADER_ACCESS_GET_SET( unsigned char, abi_version );
+ ELFIO_HEADER_ACCESS_GET_SET( Elf_Half, type );
+ ELFIO_HEADER_ACCESS_GET_SET( Elf_Half, machine );
+ ELFIO_HEADER_ACCESS_GET_SET( Elf_Word, flags );
+ ELFIO_HEADER_ACCESS_GET_SET( Elf64_Addr, entry );
+ ELFIO_HEADER_ACCESS_GET_SET( Elf64_Off, sections_offset );
+ ELFIO_HEADER_ACCESS_GET_SET( Elf64_Off, segments_offset );
+ ELFIO_HEADER_ACCESS_GET_SET( Elf_Half, section_name_str_index );
+
+ //------------------------------------------------------------------------------
+ const endianess_convertor& get_convertor() const { return convertor; }
+
+ //------------------------------------------------------------------------------
+ Elf_Xword get_default_entry_size( Elf_Word section_type ) const
+ {
+ switch ( section_type ) {
+ case SHT_RELA:
+ if ( header->get_class() == ELFCLASS64 ) {
+ return sizeof( Elf64_Rela );
+ }
+ else {
+ return sizeof( Elf32_Rela );
+ }
+ case SHT_REL:
+ if ( header->get_class() == ELFCLASS64 ) {
+ return sizeof( Elf64_Rel );
+ }
+ else {
+ return sizeof( Elf32_Rel );
+ }
+ case SHT_SYMTAB:
+ if ( header->get_class() == ELFCLASS64 ) {
+ return sizeof( Elf64_Sym );
+ }
+ else {
+ return sizeof( Elf32_Sym );
+ }
+ case SHT_DYNAMIC:
+ if ( header->get_class() == ELFCLASS64 ) {
+ return sizeof( Elf64_Dyn );
+ }
+ else {
+ return sizeof( Elf32_Dyn );
+ }
+ default:
+ return 0;
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ bool is_offset_in_section( Elf64_Off offset, const section* sec ) const
+ {
+ return ( offset >= sec->get_offset() ) &&
+ ( offset < ( sec->get_offset() + sec->get_size() ) );
+ }
+
+ //------------------------------------------------------------------------------
+ public:
+ //! returns an empty string if no problems are detected,
+ //! or a string containing an error message if problems are found
+ std::string validate() const
+ {
+
+ // check for overlapping sections in the file
+ for ( int i = 0; i < sections.size(); ++i ) {
+ for ( int j = i + 1; j < sections.size(); ++j ) {
+ const section* a = sections[i];
+ const section* b = sections[j];
+ if ( !( a->get_type() & SHT_NOBITS ) &&
+ !( b->get_type() & SHT_NOBITS ) && ( a->get_size() > 0 ) &&
+ ( b->get_size() > 0 ) && ( a->get_offset() > 0 ) &&
+ ( b->get_offset() > 0 ) ) {
+ if ( is_offset_in_section( a->get_offset(), b ) ||
+ is_offset_in_section(
+ a->get_offset() + a->get_size() - 1, b ) ||
+ is_offset_in_section( b->get_offset(), a ) ||
+ is_offset_in_section(
+ b->get_offset() + b->get_size() - 1, a ) ) {
+ return "Sections " + a->get_name() + " and " +
+ b->get_name() + " overlap in file";
+ }
+ }
+ }
+ }
+
+ // more checks to be added here...
+
+ return "";
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ //------------------------------------------------------------------------------
+ void clean()
+ {
+ delete header;
+ header = 0;
+
+ std::vector<section*>::const_iterator it;
+ for ( it = sections_.begin(); it != sections_.end(); ++it ) {
+ delete *it;
+ }
+ sections_.clear();
+
+ std::vector<segment*>::const_iterator it1;
+ for ( it1 = segments_.begin(); it1 != segments_.end(); ++it1 ) {
+ delete *it1;
+ }
+ segments_.clear();
+ }
+
+ //------------------------------------------------------------------------------
+ elf_header* create_header( unsigned char file_class,
+ unsigned char encoding )
+ {
+ elf_header* new_header = 0;
+
+ if ( file_class == ELFCLASS64 ) {
+ new_header =
+ new elf_header_impl<Elf64_Ehdr>( &convertor, encoding );
+ }
+ else if ( file_class == ELFCLASS32 ) {
+ new_header =
+ new elf_header_impl<Elf32_Ehdr>( &convertor, encoding );
+ }
+ else {
+ return 0;
+ }
+
+ return new_header;
+ }
+
+ //------------------------------------------------------------------------------
+ section* create_section()
+ {
+ section* new_section;
+ unsigned char file_class = get_class();
+
+ if ( file_class == ELFCLASS64 ) {
+ new_section = new section_impl<Elf64_Shdr>( &convertor );
+ }
+ else if ( file_class == ELFCLASS32 ) {
+ new_section = new section_impl<Elf32_Shdr>( &convertor );
+ }
+ else {
+ return 0;
+ }
+
+ new_section->set_index( (Elf_Half)sections_.size() );
+ sections_.push_back( new_section );
+
+ return new_section;
+ }
+
+ //------------------------------------------------------------------------------
+ segment* create_segment()
+ {
+ segment* new_segment;
+ unsigned char file_class = header->get_class();
+
+ if ( file_class == ELFCLASS64 ) {
+ new_segment = new segment_impl<Elf64_Phdr>( &convertor );
+ }
+ else if ( file_class == ELFCLASS32 ) {
+ new_segment = new segment_impl<Elf32_Phdr>( &convertor );
+ }
+ else {
+ return 0;
+ }
+
+ new_segment->set_index( (Elf_Half)segments_.size() );
+ segments_.push_back( new_segment );
+
+ return new_segment;
+ }
+
+ //------------------------------------------------------------------------------
+ void create_mandatory_sections()
+ {
+ // Create null section without calling to 'add_section' as no string
+ // section containing section names exists yet
+ section* sec0 = create_section();
+ sec0->set_index( 0 );
+ sec0->set_name( "" );
+ sec0->set_name_string_offset( 0 );
+
+ set_section_name_str_index( 1 );
+ section* shstrtab = sections.add( ".shstrtab" );
+ shstrtab->set_type( SHT_STRTAB );
+ shstrtab->set_addr_align( 1 );
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Half load_sections( std::istream& stream )
+ {
+ Elf_Half entry_size = header->get_section_entry_size();
+ Elf_Half num = header->get_sections_num();
+ Elf64_Off offset = header->get_sections_offset();
+
+ for ( Elf_Half i = 0; i < num; ++i ) {
+ section* sec = create_section();
+ sec->load( stream, (std::streamoff)offset +
+ (std::streampos)i * entry_size );
+ sec->set_index( i );
+ // To mark that the section is not permitted to reassign address
+ // during layout calculation
+ sec->set_address( sec->get_address() );
+ }
+
+ Elf_Half shstrndx = get_section_name_str_index();
+
+ if ( SHN_UNDEF != shstrndx ) {
+ string_section_accessor str_reader( sections[shstrndx] );
+ for ( Elf_Half i = 0; i < num; ++i ) {
+ Elf_Word section_offset = sections[i]->get_name_string_offset();
+ const char* p = str_reader.get_string( section_offset );
+ if ( p != 0 ) {
+ sections[i]->set_name( p );
+ }
+ }
+ }
+
+ return num;
+ }
+
+ //------------------------------------------------------------------------------
+ //! Checks whether the addresses of the section entirely fall within the given segment.
+ //! It doesn't matter if the addresses are memory addresses, or file offsets,
+ //! they just need to be in the same address space
+ bool is_sect_in_seg( Elf64_Off sect_begin,
+ Elf_Xword sect_size,
+ Elf64_Off seg_begin,
+ Elf64_Off seg_end )
+ {
+ return ( seg_begin <= sect_begin ) &&
+ ( sect_begin + sect_size <= seg_end ) &&
+ ( sect_begin <
+ seg_end ); // this is important criteria when sect_size == 0
+ // Example: seg_begin=10, seg_end=12 (-> covering the bytes 10 and 11)
+ // sect_begin=12, sect_size=0 -> shall return false!
+ }
+
+ //------------------------------------------------------------------------------
+ bool load_segments( std::istream& stream )
+ {
+ Elf_Half entry_size = header->get_segment_entry_size();
+ Elf_Half num = header->get_segments_num();
+ Elf64_Off offset = header->get_segments_offset();
+
+ for ( Elf_Half i = 0; i < num; ++i ) {
+ segment* seg;
+ unsigned char file_class = header->get_class();
+
+ if ( file_class == ELFCLASS64 ) {
+ seg = new segment_impl<Elf64_Phdr>( &convertor );
+ }
+ else if ( file_class == ELFCLASS32 ) {
+ seg = new segment_impl<Elf32_Phdr>( &convertor );
+ }
+ else {
+ return false;
+ }
+
+ seg->load( stream, (std::streamoff)offset +
+ (std::streampos)i * entry_size );
+ seg->set_index( i );
+
+ // Add sections to the segments (similar to readelfs algorithm)
+ Elf64_Off segBaseOffset = seg->get_offset();
+ Elf64_Off segEndOffset = segBaseOffset + seg->get_file_size();
+ Elf64_Off segVBaseAddr = seg->get_virtual_address();
+ Elf64_Off segVEndAddr = segVBaseAddr + seg->get_memory_size();
+ for ( Elf_Half j = 0; j < sections.size(); ++j ) {
+ const section* psec = sections[j];
+
+ // SHF_ALLOC sections are matched based on the virtual address
+ // otherwise the file offset is matched
+ if ( ( psec->get_flags() & SHF_ALLOC )
+ ? is_sect_in_seg( psec->get_address(),
+ psec->get_size(), segVBaseAddr,
+ segVEndAddr )
+ : is_sect_in_seg( psec->get_offset(), psec->get_size(),
+ segBaseOffset, segEndOffset ) ) {
+ // Alignment of segment shall not be updated, to preserve original value
+ // It will be re-calculated on saving.
+ seg->add_section_index( psec->get_index(), 0 );
+ }
+ }
+
+ // Add section into the segments' container
+ segments_.push_back( seg );
+ }
+
+ return true;
+ }
+
+ //------------------------------------------------------------------------------
+ bool save_header( std::ostream& stream ) { return header->save( stream ); }
+
+ //------------------------------------------------------------------------------
+ bool save_sections( std::ostream& stream )
+ {
+ for ( unsigned int i = 0; i < sections_.size(); ++i ) {
+ section* sec = sections_.at( i );
+
+ std::streampos headerPosition =
+ (std::streamoff)header->get_sections_offset() +
+ (std::streampos)header->get_section_entry_size() *
+ sec->get_index();
+
+ sec->save( stream, headerPosition, sec->get_offset() );
+ }
+ return true;
+ }
+
+ //------------------------------------------------------------------------------
+ bool save_segments( std::ostream& stream )
+ {
+ for ( unsigned int i = 0; i < segments_.size(); ++i ) {
+ segment* seg = segments_.at( i );
+
+ std::streampos headerPosition =
+ header->get_segments_offset() +
+ (std::streampos)header->get_segment_entry_size() *
+ seg->get_index();
+
+ seg->save( stream, headerPosition, seg->get_offset() );
+ }
+ return true;
+ }
+
+ //------------------------------------------------------------------------------
+ bool is_section_without_segment( unsigned int section_index )
+ {
+ bool found = false;
+
+ for ( unsigned int j = 0; !found && ( j < segments.size() ); ++j ) {
+ for ( unsigned int k = 0;
+ !found && ( k < segments[j]->get_sections_num() ); ++k ) {
+ found = segments[j]->get_section_index_at( k ) == section_index;
+ }
+ }
+
+ return !found;
+ }
+
+ //------------------------------------------------------------------------------
+ bool is_subsequence_of( segment* seg1, segment* seg2 )
+ {
+ // Return 'true' if sections of seg1 are a subset of sections in seg2
+ const std::vector<Elf_Half>& sections1 = seg1->get_sections();
+ const std::vector<Elf_Half>& sections2 = seg2->get_sections();
+
+ bool found = false;
+ if ( sections1.size() < sections2.size() ) {
+ found = std::includes( sections2.begin(), sections2.end(),
+ sections1.begin(), sections1.end() );
+ }
+
+ return found;
+ }
+
+ //------------------------------------------------------------------------------
+ std::vector<segment*> get_ordered_segments()
+ {
+ std::vector<segment*> res;
+ std::deque<segment*> worklist;
+
+ res.reserve( segments.size() );
+ std::copy( segments_.begin(), segments_.end(),
+ std::back_inserter( worklist ) );
+
+ // Bring the segments which start at address 0 to the front
+ size_t nextSlot = 0;
+ for ( size_t i = 0; i < worklist.size(); ++i ) {
+ if ( i != nextSlot && worklist[i]->is_offset_initialized() &&
+ worklist[i]->get_offset() == 0 ) {
+ if ( worklist[nextSlot]->get_offset() == 0 ) {
+ ++nextSlot;
+ }
+ std::swap( worklist[i], worklist[nextSlot] );
+ ++nextSlot;
+ }
+ }
+
+ while ( !worklist.empty() ) {
+ segment* seg = worklist.front();
+ worklist.pop_front();
+
+ size_t i = 0;
+ for ( ; i < worklist.size(); ++i ) {
+ if ( is_subsequence_of( seg, worklist[i] ) ) {
+ break;
+ }
+ }
+
+ if ( i < worklist.size() )
+ worklist.push_back( seg );
+ else
+ res.push_back( seg );
+ }
+
+ return res;
+ }
+
+ //------------------------------------------------------------------------------
+ bool layout_sections_without_segments()
+ {
+ for ( unsigned int i = 0; i < sections_.size(); ++i ) {
+ if ( is_section_without_segment( i ) ) {
+ section* sec = sections_[i];
+
+ Elf_Xword section_align = sec->get_addr_align();
+ if ( section_align > 1 &&
+ current_file_pos % section_align != 0 ) {
+ current_file_pos +=
+ section_align - current_file_pos % section_align;
+ }
+
+ if ( 0 != sec->get_index() )
+ sec->set_offset( current_file_pos );
+
+ if ( SHT_NOBITS != sec->get_type() &&
+ SHT_NULL != sec->get_type() ) {
+ current_file_pos += sec->get_size();
+ }
+ }
+ }
+
+ return true;
+ }
+
+ //------------------------------------------------------------------------------
+ void calc_segment_alignment()
+ {
+ for ( std::vector<segment*>::iterator s = segments_.begin();
+ s != segments_.end(); ++s ) {
+ segment* seg = *s;
+ for ( int i = 0; i < seg->get_sections_num(); ++i ) {
+ section* sect = sections_[seg->get_section_index_at( i )];
+ if ( sect->get_addr_align() > seg->get_align() ) {
+ seg->set_align( sect->get_addr_align() );
+ }
+ }
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ bool layout_segments_and_their_sections()
+ {
+ std::vector<segment*> worklist;
+ std::vector<bool> section_generated( sections.size(), false );
+
+ // Get segments in a order in where segments which contain a
+ // sub sequence of other segments are located at the end
+ worklist = get_ordered_segments();
+
+ for ( unsigned int i = 0; i < worklist.size(); ++i ) {
+ Elf_Xword segment_memory = 0;
+ Elf_Xword segment_filesize = 0;
+ Elf_Xword seg_start_pos = current_file_pos;
+ segment* seg = worklist[i];
+
+ // Special case: PHDR segment
+ // This segment contains the program headers but no sections
+ if ( seg->get_type() == PT_PHDR && seg->get_sections_num() == 0 ) {
+ seg_start_pos = header->get_segments_offset();
+ segment_memory = segment_filesize =
+ header->get_segment_entry_size() *
+ (Elf_Xword)header->get_segments_num();
+ }
+ // Special case:
+ else if ( seg->is_offset_initialized() && seg->get_offset() == 0 ) {
+ seg_start_pos = 0;
+ if ( seg->get_sections_num() ) {
+ segment_memory = segment_filesize = current_file_pos;
+ }
+ }
+ // New segments with not generated sections
+ // have to be aligned
+ else if ( seg->get_sections_num() &&
+ !section_generated[seg->get_section_index_at( 0 )] ) {
+ Elf_Xword align = seg->get_align() > 0 ? seg->get_align() : 1;
+ Elf64_Off cur_page_alignment = current_file_pos % align;
+ Elf64_Off req_page_alignment =
+ seg->get_virtual_address() % align;
+ Elf64_Off error = req_page_alignment - cur_page_alignment;
+
+ current_file_pos += ( seg->get_align() + error ) % align;
+ seg_start_pos = current_file_pos;
+ }
+ else if ( seg->get_sections_num() ) {
+ seg_start_pos =
+ sections[seg->get_section_index_at( 0 )]->get_offset();
+ }
+
+ // Write segment's data
+ for ( unsigned int j = 0; j < seg->get_sections_num(); ++j ) {
+ Elf_Half index = seg->get_section_index_at( j );
+
+ section* sec = sections[index];
+
+ // The NULL section is always generated
+ if ( SHT_NULL == sec->get_type() ) {
+ section_generated[index] = true;
+ continue;
+ }
+
+ Elf_Xword secAlign = 0;
+ // Fix up the alignment
+ if ( !section_generated[index] &&
+ sec->is_address_initialized() &&
+ SHT_NOBITS != sec->get_type() &&
+ SHT_NULL != sec->get_type() && 0 != sec->get_size() ) {
+ // Align the sections based on the virtual addresses
+ // when possible (this is what matters for execution)
+ Elf64_Off req_offset =
+ sec->get_address() - seg->get_virtual_address();
+ Elf64_Off cur_offset = current_file_pos - seg_start_pos;
+ if ( req_offset < cur_offset ) {
+ // something has gone awfully wrong, abort!
+ // secAlign would turn out negative, seeking backwards and overwriting previous data
+ return false;
+ }
+ secAlign = req_offset - cur_offset;
+ }
+ else if ( !section_generated[index] &&
+ !sec->is_address_initialized() ) {
+ // If no address has been specified then only the section
+ // alignment constraint has to be matched
+ Elf_Xword align = sec->get_addr_align();
+ if ( align == 0 ) {
+ align = 1;
+ }
+ Elf64_Off error = current_file_pos % align;
+ secAlign = ( align - error ) % align;
+ }
+ else if ( section_generated[index] ) {
+ // Alignment for already generated sections
+ secAlign =
+ sec->get_offset() - seg_start_pos - segment_filesize;
+ }
+
+ // Determine the segment file and memory sizes
+ // Special case .tbss section (NOBITS) in non TLS segment
+ if ( ( sec->get_flags() & SHF_ALLOC ) &&
+ !( ( sec->get_flags() & SHF_TLS ) &&
+ ( seg->get_type() != PT_TLS ) &&
+ ( SHT_NOBITS == sec->get_type() ) ) )
+ segment_memory += sec->get_size() + secAlign;
+
+ if ( SHT_NOBITS != sec->get_type() )
+ segment_filesize += sec->get_size() + secAlign;
+
+ // Nothing to be done when generating nested segments
+ if ( section_generated[index] ) {
+ continue;
+ }
+
+ current_file_pos += secAlign;
+
+ // Set the section addresses when missing
+ if ( !sec->is_address_initialized() )
+ sec->set_address( seg->get_virtual_address() +
+ current_file_pos - seg_start_pos );
+
+ if ( 0 != sec->get_index() )
+ sec->set_offset( current_file_pos );
+
+ if ( SHT_NOBITS != sec->get_type() )
+ current_file_pos += sec->get_size();
+
+ section_generated[index] = true;
+ }
+
+ seg->set_file_size( segment_filesize );
+
+ // If we already have a memory size from loading an elf file (value > 0),
+ // it must not shrink!
+ // Memory size may be bigger than file size and it is the loader's job to do something
+ // with the surplus bytes in memory, like initializing them with a defined value.
+ if ( seg->get_memory_size() < segment_memory ) {
+ seg->set_memory_size( segment_memory );
+ }
+
+ seg->set_offset( seg_start_pos );
+ }
+
+ return true;
+ }
+
+ //------------------------------------------------------------------------------
+ bool layout_section_table()
+ {
+ // Simply place the section table at the end for now
+ Elf64_Off alignmentError = current_file_pos % 4;
+ current_file_pos += ( 4 - alignmentError ) % 4;
+ header->set_sections_offset( current_file_pos );
+ return true;
+ }
+
+ //------------------------------------------------------------------------------
+ public:
+ friend class Sections;
+ class Sections
+ {
+ public:
+ //------------------------------------------------------------------------------
+ Sections( elfio* parent_ ) : parent( parent_ ) {}
+
+ //------------------------------------------------------------------------------
+ Elf_Half size() const { return (Elf_Half)parent->sections_.size(); }
+
+ //------------------------------------------------------------------------------
+ section* operator[]( unsigned int index ) const
+ {
+ section* sec = 0;
+
+ if ( index < parent->sections_.size() ) {
+ sec = parent->sections_[index];
+ }
+
+ return sec;
+ }
+
+ //------------------------------------------------------------------------------
+ section* operator[]( const std::string& name ) const
+ {
+ section* sec = 0;
+
+ std::vector<section*>::const_iterator it;
+ for ( it = parent->sections_.begin(); it != parent->sections_.end();
+ ++it ) {
+ if ( ( *it )->get_name() == name ) {
+ sec = *it;
+ break;
+ }
+ }
+
+ return sec;
+ }
+
+ //------------------------------------------------------------------------------
+ section* add( const std::string& name )
+ {
+ section* new_section = parent->create_section();
+ new_section->set_name( name );
+
+ Elf_Half str_index = parent->get_section_name_str_index();
+ section* string_table( parent->sections_[str_index] );
+ string_section_accessor str_writer( string_table );
+ Elf_Word pos = str_writer.add_string( name );
+ new_section->set_name_string_offset( pos );
+
+ return new_section;
+ }
+
+ //------------------------------------------------------------------------------
+ std::vector<section*>::iterator begin()
+ {
+ return parent->sections_.begin();
+ }
+
+ //------------------------------------------------------------------------------
+ std::vector<section*>::iterator end()
+ {
+ return parent->sections_.end();
+ }
+
+ //------------------------------------------------------------------------------
+ std::vector<section*>::const_iterator begin() const
+ {
+ return parent->sections_.cbegin();
+ }
+
+ //------------------------------------------------------------------------------
+ std::vector<section*>::const_iterator end() const
+ {
+ return parent->sections_.cend();
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ elfio* parent;
+ } sections;
+
+ //------------------------------------------------------------------------------
+ public:
+ friend class Segments;
+ class Segments
+ {
+ public:
+ //------------------------------------------------------------------------------
+ Segments( elfio* parent_ ) : parent( parent_ ) {}
+
+ //------------------------------------------------------------------------------
+ Elf_Half size() const { return (Elf_Half)parent->segments_.size(); }
+
+ //------------------------------------------------------------------------------
+ segment* operator[]( unsigned int index ) const
+ {
+ return parent->segments_[index];
+ }
+
+ //------------------------------------------------------------------------------
+ segment* add() { return parent->create_segment(); }
+
+ //------------------------------------------------------------------------------
+ std::vector<segment*>::iterator begin()
+ {
+ return parent->segments_.begin();
+ }
+
+ //------------------------------------------------------------------------------
+ std::vector<segment*>::iterator end()
+ {
+ return parent->segments_.end();
+ }
+
+ //------------------------------------------------------------------------------
+ std::vector<segment*>::const_iterator begin() const
+ {
+ return parent->segments_.cbegin();
+ }
+
+ //------------------------------------------------------------------------------
+ std::vector<segment*>::const_iterator end() const
+ {
+ return parent->segments_.cend();
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ elfio* parent;
+ } segments;
+
+ //------------------------------------------------------------------------------
+ private:
+ elf_header* header;
+ std::vector<section*> sections_;
+ std::vector<segment*> segments_;
+ endianess_convertor convertor;
+
+ Elf_Xword current_file_pos;
+};
+
+} // namespace ELFIO
+
+
+/*** Start of inlined file: elfio_symbols.hpp ***/
+#ifndef ELFIO_SYMBOLS_HPP
+#define ELFIO_SYMBOLS_HPP
+
+namespace ELFIO {
+
+//------------------------------------------------------------------------------
+template <class S> class symbol_section_accessor_template
+{
+ public:
+ //------------------------------------------------------------------------------
+ symbol_section_accessor_template( const elfio& elf_file_,
+ S* symbol_section_ )
+ : elf_file( elf_file_ ), symbol_section( symbol_section_ )
+ {
+ find_hash_section();
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Xword get_symbols_num() const
+ {
+ Elf_Xword nRet = 0;
+ if ( 0 != symbol_section->get_entry_size() ) {
+ nRet =
+ symbol_section->get_size() / symbol_section->get_entry_size();
+ }
+
+ return nRet;
+ }
+
+ //------------------------------------------------------------------------------
+ bool get_symbol( Elf_Xword index,
+ std::string& name,
+ Elf64_Addr& value,
+ Elf_Xword& size,
+ unsigned char& bind,
+ unsigned char& type,
+ Elf_Half& section_index,
+ unsigned char& other ) const
+ {
+ bool ret = false;
+
+ if ( elf_file.get_class() == ELFCLASS32 ) {
+ ret = generic_get_symbol<Elf32_Sym>( index, name, value, size, bind,
+ type, section_index, other );
+ }
+ else {
+ ret = generic_get_symbol<Elf64_Sym>( index, name, value, size, bind,
+ type, section_index, other );
+ }
+
+ return ret;
+ }
+
+ //------------------------------------------------------------------------------
+ bool get_symbol( const std::string& name,
+ Elf64_Addr& value,
+ Elf_Xword& size,
+ unsigned char& bind,
+ unsigned char& type,
+ Elf_Half& section_index,
+ unsigned char& other ) const
+ {
+ bool ret = false;
+
+ if ( 0 != get_hash_table_index() ) {
+ Elf_Word nbucket = *(const Elf_Word*)hash_section->get_data();
+ Elf_Word nchain = *(const Elf_Word*)( hash_section->get_data() +
+ sizeof( Elf_Word ) );
+ Elf_Word val = elf_hash( (const unsigned char*)name.c_str() );
+ Elf_Word y = *(const Elf_Word*)( hash_section->get_data() +
+ ( 2 + val % nbucket ) *
+ sizeof( Elf_Word ) );
+ std::string str;
+ get_symbol( y, str, value, size, bind, type, section_index, other );
+ while ( str != name && STN_UNDEF != y && y < nchain ) {
+ y = *(const Elf_Word*)( hash_section->get_data() +
+ ( 2 + nbucket + y ) *
+ sizeof( Elf_Word ) );
+ get_symbol( y, str, value, size, bind, type, section_index,
+ other );
+ }
+ if ( str == name ) {
+ ret = true;
+ }
+ }
+ else {
+ for ( Elf_Xword i = 0; i < get_symbols_num() && !ret; i++ ) {
+ std::string symbol_name;
+ if ( get_symbol( i, symbol_name, value, size, bind, type,
+ section_index, other ) ) {
+ if ( symbol_name == name ) {
+ ret = true;
+ }
+ }
+ }
+ }
+
+ return ret;
+ }
+
+ //------------------------------------------------------------------------------
+ bool get_symbol( const Elf64_Addr& value,
+ std::string& name,
+ Elf_Xword& size,
+ unsigned char& bind,
+ unsigned char& type,
+ Elf_Half& section_index,
+ unsigned char& other ) const
+ {
+
+ const endianess_convertor& convertor = elf_file.get_convertor();
+
+ Elf_Xword idx = 0;
+ bool match = false;
+ Elf64_Addr v = 0;
+
+ if ( elf_file.get_class() == ELFCLASS32 ) {
+ match = generic_search_symbols<Elf32_Sym>(
+ [&]( const Elf32_Sym* sym ) {
+ return convertor( sym->st_value ) == value;
+ },
+ idx );
+ }
+ else {
+ match = generic_search_symbols<Elf64_Sym>(
+ [&]( const Elf64_Sym* sym ) {
+ return convertor( sym->st_value ) == value;
+ },
+ idx );
+ }
+
+ if ( match ) {
+ return get_symbol( idx, name, v, size, bind, type, section_index,
+ other );
+ }
+
+ return false;
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Word add_symbol( Elf_Word name,
+ Elf64_Addr value,
+ Elf_Xword size,
+ unsigned char info,
+ unsigned char other,
+ Elf_Half shndx )
+ {
+ Elf_Word nRet;
+
+ if ( symbol_section->get_size() == 0 ) {
+ if ( elf_file.get_class() == ELFCLASS32 ) {
+ nRet = generic_add_symbol<Elf32_Sym>( 0, 0, 0, 0, 0, 0 );
+ }
+ else {
+ nRet = generic_add_symbol<Elf64_Sym>( 0, 0, 0, 0, 0, 0 );
+ }
+ }
+
+ if ( elf_file.get_class() == ELFCLASS32 ) {
+ nRet = generic_add_symbol<Elf32_Sym>( name, value, size, info,
+ other, shndx );
+ }
+ else {
+ nRet = generic_add_symbol<Elf64_Sym>( name, value, size, info,
+ other, shndx );
+ }
+
+ return nRet;
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Word add_symbol( Elf_Word name,
+ Elf64_Addr value,
+ Elf_Xword size,
+ unsigned char bind,
+ unsigned char type,
+ unsigned char other,
+ Elf_Half shndx )
+ {
+ return add_symbol( name, value, size, ELF_ST_INFO( bind, type ), other,
+ shndx );
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Word add_symbol( string_section_accessor& pStrWriter,
+ const char* str,
+ Elf64_Addr value,
+ Elf_Xword size,
+ unsigned char info,
+ unsigned char other,
+ Elf_Half shndx )
+ {
+ Elf_Word index = pStrWriter.add_string( str );
+ return add_symbol( index, value, size, info, other, shndx );
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Word add_symbol( string_section_accessor& pStrWriter,
+ const char* str,
+ Elf64_Addr value,
+ Elf_Xword size,
+ unsigned char bind,
+ unsigned char type,
+ unsigned char other,
+ Elf_Half shndx )
+ {
+ return add_symbol( pStrWriter, str, value, size,
+ ELF_ST_INFO( bind, type ), other, shndx );
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Xword arrange_local_symbols(
+ std::function<void( Elf_Xword first, Elf_Xword second )> func =
+ nullptr )
+ {
+ int nRet = 0;
+
+ if ( elf_file.get_class() == ELFCLASS32 ) {
+ nRet = generic_arrange_local_symbols<Elf32_Sym>( func );
+ }
+ else {
+ nRet = generic_arrange_local_symbols<Elf64_Sym>( func );
+ }
+
+ return nRet;
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ //------------------------------------------------------------------------------
+ void find_hash_section()
+ {
+ hash_section = 0;
+ hash_section_index = 0;
+ Elf_Half nSecNo = elf_file.sections.size();
+ for ( Elf_Half i = 0; i < nSecNo && 0 == hash_section_index; ++i ) {
+ const section* sec = elf_file.sections[i];
+ if ( sec->get_link() == symbol_section->get_index() ) {
+ hash_section = sec;
+ hash_section_index = i;
+ }
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Half get_string_table_index() const
+ {
+ return (Elf_Half)symbol_section->get_link();
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Half get_hash_table_index() const { return hash_section_index; }
+
+ //------------------------------------------------------------------------------
+ template <class T> const T* generic_get_symbol_ptr( Elf_Xword index ) const
+ {
+ if ( 0 != symbol_section->get_data() && index < get_symbols_num() ) {
+ const T* pSym = reinterpret_cast<const T*>(
+ symbol_section->get_data() +
+ index * symbol_section->get_entry_size() );
+
+ return pSym;
+ }
+
+ return nullptr;
+ }
+
+ //------------------------------------------------------------------------------
+ template <class T>
+ bool generic_search_symbols( std::function<bool( const T* )> match,
+ Elf_Xword& idx ) const
+ {
+ for ( Elf_Xword i = 0; i < get_symbols_num(); i++ ) {
+ const T* symPtr = generic_get_symbol_ptr<T>( i );
+
+ if ( symPtr == nullptr )
+ return false;
+
+ if ( match( symPtr ) ) {
+ idx = i;
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ //------------------------------------------------------------------------------
+ template <class T>
+ bool generic_get_symbol( Elf_Xword index,
+ std::string& name,
+ Elf64_Addr& value,
+ Elf_Xword& size,
+ unsigned char& bind,
+ unsigned char& type,
+ Elf_Half& section_index,
+ unsigned char& other ) const
+ {
+ bool ret = false;
+
+ if ( 0 != symbol_section->get_data() && index < get_symbols_num() ) {
+ const T* pSym = reinterpret_cast<const T*>(
+ symbol_section->get_data() +
+ index * symbol_section->get_entry_size() );
+
+ const endianess_convertor& convertor = elf_file.get_convertor();
+
+ section* string_section =
+ elf_file.sections[get_string_table_index()];
+ string_section_accessor str_reader( string_section );
+ const char* pStr =
+ str_reader.get_string( convertor( pSym->st_name ) );
+ if ( 0 != pStr ) {
+ name = pStr;
+ }
+ value = convertor( pSym->st_value );
+ size = convertor( pSym->st_size );
+ bind = ELF_ST_BIND( pSym->st_info );
+ type = ELF_ST_TYPE( pSym->st_info );
+ section_index = convertor( pSym->st_shndx );
+ other = pSym->st_other;
+
+ ret = true;
+ }
+
+ return ret;
+ }
+
+ //------------------------------------------------------------------------------
+ template <class T>
+ Elf_Word generic_add_symbol( Elf_Word name,
+ Elf64_Addr value,
+ Elf_Xword size,
+ unsigned char info,
+ unsigned char other,
+ Elf_Half shndx )
+ {
+ const endianess_convertor& convertor = elf_file.get_convertor();
+
+ T entry;
+ entry.st_name = convertor( name );
+ entry.st_value = value;
+ entry.st_value = convertor( entry.st_value );
+ entry.st_size = size;
+ entry.st_size = convertor( entry.st_size );
+ entry.st_info = convertor( info );
+ entry.st_other = convertor( other );
+ entry.st_shndx = convertor( shndx );
+
+ symbol_section->append_data( reinterpret_cast<char*>( &entry ),
+ sizeof( entry ) );
+
+ Elf_Word nRet = symbol_section->get_size() / sizeof( entry ) - 1;
+
+ return nRet;
+ }
+
+ //------------------------------------------------------------------------------
+ template <class T>
+ Elf_Xword generic_arrange_local_symbols(
+ std::function<void( Elf_Xword first, Elf_Xword second )> func )
+ {
+ const endianess_convertor& convertor = elf_file.get_convertor();
+ const Elf_Xword size = symbol_section->get_entry_size();
+
+ Elf_Xword first_not_local =
+ 1; // Skip the first entry. It is always NOTYPE
+ Elf_Xword current = 0;
+ Elf_Xword count = get_symbols_num();
+
+ while ( true ) {
+ T* p1 = nullptr;
+ T* p2 = nullptr;
+
+ while ( first_not_local < count ) {
+ p1 = const_cast<T*>(
+ generic_get_symbol_ptr<T>( first_not_local ) );
+ if ( ELF_ST_BIND( convertor( p1->st_info ) ) != STB_LOCAL )
+ break;
+ ++first_not_local;
+ }
+
+ current = first_not_local + 1;
+ while ( current < count ) {
+ p2 = const_cast<T*>( generic_get_symbol_ptr<T>( current ) );
+ if ( ELF_ST_BIND( convertor( p2->st_info ) ) == STB_LOCAL )
+ break;
+ ++current;
+ }
+
+ if ( first_not_local < count && current < count ) {
+ if ( func )
+ func( first_not_local, current );
+
+ // Swap the symbols
+ T tmp;
+ std::copy( p1, p1 + 1, &tmp );
+ std::copy( p2, p2 + 1, p1 );
+ std::copy( &tmp, &tmp + 1, p2 );
+ }
+ else {
+ // Update 'info' field of the section
+ symbol_section->set_info( first_not_local );
+ break;
+ }
+ }
+
+ // Elf_Word nRet = symbol_section->get_size() / sizeof(entry) - 1;
+
+ return first_not_local;
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ const elfio& elf_file;
+ S* symbol_section;
+ Elf_Half hash_section_index;
+ const section* hash_section;
+};
+
+using symbol_section_accessor = symbol_section_accessor_template<section>;
+using const_symbol_section_accessor =
+ symbol_section_accessor_template<const section>;
+
+} // namespace ELFIO
+
+#endif // ELFIO_SYMBOLS_HPP
+
+/*** End of inlined file: elfio_symbols.hpp ***/
+
+
+/*** Start of inlined file: elfio_note.hpp ***/
+#ifndef ELFIO_NOTE_HPP
+#define ELFIO_NOTE_HPP
+
+namespace ELFIO {
+
+//------------------------------------------------------------------------------
+// There are discrepancies in documentations. SCO documentation
+// (http://www.sco.com/developers/gabi/latest/ch5.pheader.html#note_section)
+// requires 8 byte entries alignment for 64-bit ELF file,
+// but Oracle's definition uses the same structure
+// for 32-bit and 64-bit formats.
+// (https://docs.oracle.com/cd/E23824_01/html/819-0690/chapter6-18048.html)
+//
+// It looks like EM_X86_64 Linux implementation is similar to Oracle's
+// definition. Therefore, the same alignment works for both formats
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+template <class S> class note_section_accessor_template
+{
+ public:
+ //------------------------------------------------------------------------------
+ note_section_accessor_template( const elfio& elf_file_, S* section_ )
+ : elf_file( elf_file_ ), note_section( section_ )
+ {
+ process_section();
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Word get_notes_num() const
+ {
+ return (Elf_Word)note_start_positions.size();
+ }
+
+ //------------------------------------------------------------------------------
+ bool get_note( Elf_Word index,
+ Elf_Word& type,
+ std::string& name,
+ void*& desc,
+ Elf_Word& descSize ) const
+ {
+ if ( index >= note_section->get_size() ) {
+ return false;
+ }
+
+ const char* pData =
+ note_section->get_data() + note_start_positions[index];
+ int align = sizeof( Elf_Word );
+
+ const endianess_convertor& convertor = elf_file.get_convertor();
+ type = convertor( *(const Elf_Word*)( pData + 2 * align ) );
+ Elf_Word namesz = convertor( *(const Elf_Word*)( pData ) );
+ descSize = convertor( *(const Elf_Word*)( pData + sizeof( namesz ) ) );
+
+ Elf_Xword max_name_size =
+ note_section->get_size() - note_start_positions[index];
+ if ( namesz < 1 || namesz > max_name_size ||
+ (Elf_Xword)namesz + descSize > max_name_size ) {
+ return false;
+ }
+ name.assign( pData + 3 * align, namesz - 1 );
+ if ( 0 == descSize ) {
+ desc = 0;
+ }
+ else {
+ desc =
+ const_cast<char*>( pData + 3 * align +
+ ( ( namesz + align - 1 ) / align ) * align );
+ }
+
+ return true;
+ }
+
+ //------------------------------------------------------------------------------
+ void add_note( Elf_Word type,
+ const std::string& name,
+ const void* desc,
+ Elf_Word descSize )
+ {
+ const endianess_convertor& convertor = elf_file.get_convertor();
+
+ int align = sizeof( Elf_Word );
+ Elf_Word nameLen = (Elf_Word)name.size() + 1;
+ Elf_Word nameLenConv = convertor( nameLen );
+ std::string buffer( reinterpret_cast<char*>( &nameLenConv ), align );
+ Elf_Word descSizeConv = convertor( descSize );
+
+ buffer.append( reinterpret_cast<char*>( &descSizeConv ), align );
+ type = convertor( type );
+ buffer.append( reinterpret_cast<char*>( &type ), align );
+ buffer.append( name );
+ buffer.append( 1, '\x00' );
+ const char pad[] = { '\0', '\0', '\0', '\0' };
+ if ( nameLen % align != 0 ) {
+ buffer.append( pad, align - nameLen % align );
+ }
+ if ( desc != 0 && descSize != 0 ) {
+ buffer.append( reinterpret_cast<const char*>( desc ), descSize );
+ if ( descSize % align != 0 ) {
+ buffer.append( pad, align - descSize % align );
+ }
+ }
+
+ note_start_positions.push_back( note_section->get_size() );
+ note_section->append_data( buffer );
+ }
+
+ private:
+ //------------------------------------------------------------------------------
+ void process_section()
+ {
+ const endianess_convertor& convertor = elf_file.get_convertor();
+ const char* data = note_section->get_data();
+ Elf_Xword size = note_section->get_size();
+ Elf_Xword current = 0;
+
+ note_start_positions.clear();
+
+ // Is it empty?
+ if ( 0 == data || 0 == size ) {
+ return;
+ }
+
+ Elf_Word align = sizeof( Elf_Word );
+ while ( current + (Elf_Xword)3 * align <= size ) {
+ note_start_positions.push_back( current );
+ Elf_Word namesz = convertor( *(const Elf_Word*)( data + current ) );
+ Elf_Word descsz = convertor(
+ *(const Elf_Word*)( data + current + sizeof( namesz ) ) );
+
+ current += (Elf_Xword)3 * sizeof( Elf_Word ) +
+ ( ( namesz + align - 1 ) / align ) * (Elf_Xword)align +
+ ( ( descsz + align - 1 ) / align ) * (Elf_Xword)align;
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ const elfio& elf_file;
+ S* note_section;
+ std::vector<Elf_Xword> note_start_positions;
+};
+
+using note_section_accessor = note_section_accessor_template<section>;
+using const_note_section_accessor =
+ note_section_accessor_template<const section>;
+
+} // namespace ELFIO
+
+#endif // ELFIO_NOTE_HPP
+
+/*** End of inlined file: elfio_note.hpp ***/
+
+
+/*** Start of inlined file: elfio_relocation.hpp ***/
+#ifndef ELFIO_RELOCATION_HPP
+#define ELFIO_RELOCATION_HPP
+
+namespace ELFIO {
+
+template <typename T> struct get_sym_and_type;
+template <> struct get_sym_and_type<Elf32_Rel>
+{
+ static int get_r_sym( Elf_Xword info )
+ {
+ return ELF32_R_SYM( (Elf_Word)info );
+ }
+ static int get_r_type( Elf_Xword info )
+ {
+ return ELF32_R_TYPE( (Elf_Word)info );
+ }
+};
+template <> struct get_sym_and_type<Elf32_Rela>
+{
+ static int get_r_sym( Elf_Xword info )
+ {
+ return ELF32_R_SYM( (Elf_Word)info );
+ }
+ static int get_r_type( Elf_Xword info )
+ {
+ return ELF32_R_TYPE( (Elf_Word)info );
+ }
+};
+template <> struct get_sym_and_type<Elf64_Rel>
+{
+ static int get_r_sym( Elf_Xword info ) { return ELF64_R_SYM( info ); }
+ static int get_r_type( Elf_Xword info ) { return ELF64_R_TYPE( info ); }
+};
+template <> struct get_sym_and_type<Elf64_Rela>
+{
+ static int get_r_sym( Elf_Xword info ) { return ELF64_R_SYM( info ); }
+ static int get_r_type( Elf_Xword info ) { return ELF64_R_TYPE( info ); }
+};
+
+//------------------------------------------------------------------------------
+template <class S> class relocation_section_accessor_template
+{
+ public:
+ //------------------------------------------------------------------------------
+ relocation_section_accessor_template( const elfio& elf_file_, S* section_ )
+ : elf_file( elf_file_ ), relocation_section( section_ )
+ {
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Xword get_entries_num() const
+ {
+ Elf_Xword nRet = 0;
+
+ if ( 0 != relocation_section->get_entry_size() ) {
+ nRet = relocation_section->get_size() /
+ relocation_section->get_entry_size();
+ }
+
+ return nRet;
+ }
+
+ //------------------------------------------------------------------------------
+ bool get_entry( Elf_Xword index,
+ Elf64_Addr& offset,
+ Elf_Word& symbol,
+ Elf_Word& type,
+ Elf_Sxword& addend ) const
+ {
+ if ( index >= get_entries_num() ) { // Is index valid
+ return false;
+ }
+
+ if ( elf_file.get_class() == ELFCLASS32 ) {
+ if ( SHT_REL == relocation_section->get_type() ) {
+ generic_get_entry_rel<Elf32_Rel>( index, offset, symbol, type,
+ addend );
+ }
+ else if ( SHT_RELA == relocation_section->get_type() ) {
+ generic_get_entry_rela<Elf32_Rela>( index, offset, symbol, type,
+ addend );
+ }
+ }
+ else {
+ if ( SHT_REL == relocation_section->get_type() ) {
+ generic_get_entry_rel<Elf64_Rel>( index, offset, symbol, type,
+ addend );
+ }
+ else if ( SHT_RELA == relocation_section->get_type() ) {
+ generic_get_entry_rela<Elf64_Rela>( index, offset, symbol, type,
+ addend );
+ }
+ }
+
+ return true;
+ }
+
+ //------------------------------------------------------------------------------
+ bool get_entry( Elf_Xword index,
+ Elf64_Addr& offset,
+ Elf64_Addr& symbolValue,
+ std::string& symbolName,
+ Elf_Word& type,
+ Elf_Sxword& addend,
+ Elf_Sxword& calcValue ) const
+ {
+ // Do regular job
+ Elf_Word symbol;
+ bool ret = get_entry( index, offset, symbol, type, addend );
+
+ // Find the symbol
+ Elf_Xword size;
+ unsigned char bind;
+ unsigned char symbolType;
+ Elf_Half section;
+ unsigned char other;
+
+ symbol_section_accessor symbols(
+ elf_file, elf_file.sections[get_symbol_table_index()] );
+ ret = ret && symbols.get_symbol( symbol, symbolName, symbolValue, size,
+ bind, symbolType, section, other );
+
+ if ( ret ) { // Was it successful?
+ switch ( type ) {
+ case R_386_NONE: // none
+ calcValue = 0;
+ break;
+ case R_386_32: // S + A
+ calcValue = symbolValue + addend;
+ break;
+ case R_386_PC32: // S + A - P
+ calcValue = symbolValue + addend - offset;
+ break;
+ case R_386_GOT32: // G + A - P
+ calcValue = 0;
+ break;
+ case R_386_PLT32: // L + A - P
+ calcValue = 0;
+ break;
+ case R_386_COPY: // none
+ calcValue = 0;
+ break;
+ case R_386_GLOB_DAT: // S
+ case R_386_JMP_SLOT: // S
+ calcValue = symbolValue;
+ break;
+ case R_386_RELATIVE: // B + A
+ calcValue = addend;
+ break;
+ case R_386_GOTOFF: // S + A - GOT
+ calcValue = 0;
+ break;
+ case R_386_GOTPC: // GOT + A - P
+ calcValue = 0;
+ break;
+ default: // Not recognized symbol!
+ calcValue = 0;
+ break;
+ }
+ }
+
+ return ret;
+ }
+
+ //------------------------------------------------------------------------------
+ bool set_entry( Elf_Xword index,
+ Elf64_Addr offset,
+ Elf_Word symbol,
+ Elf_Word type,
+ Elf_Sxword addend )
+ {
+ if ( index >= get_entries_num() ) { // Is index valid
+ return false;
+ }
+
+ if ( elf_file.get_class() == ELFCLASS32 ) {
+ if ( SHT_REL == relocation_section->get_type() ) {
+ generic_set_entry_rel<Elf32_Rel>( index, offset, symbol, type,
+ addend );
+ }
+ else if ( SHT_RELA == relocation_section->get_type() ) {
+ generic_set_entry_rela<Elf32_Rela>( index, offset, symbol, type,
+ addend );
+ }
+ }
+ else {
+ if ( SHT_REL == relocation_section->get_type() ) {
+ generic_set_entry_rel<Elf64_Rel>( index, offset, symbol, type,
+ addend );
+ }
+ else if ( SHT_RELA == relocation_section->get_type() ) {
+ generic_set_entry_rela<Elf64_Rela>( index, offset, symbol, type,
+ addend );
+ }
+ }
+
+ return true;
+ }
+
+ //------------------------------------------------------------------------------
+ void add_entry( Elf64_Addr offset, Elf_Xword info )
+ {
+ if ( elf_file.get_class() == ELFCLASS32 ) {
+ generic_add_entry<Elf32_Rel>( offset, info );
+ }
+ else {
+ generic_add_entry<Elf64_Rel>( offset, info );
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ void add_entry( Elf64_Addr offset, Elf_Word symbol, unsigned char type )
+ {
+ Elf_Xword info;
+ if ( elf_file.get_class() == ELFCLASS32 ) {
+ info = ELF32_R_INFO( (Elf_Xword)symbol, type );
+ }
+ else {
+ info = ELF64_R_INFO( (Elf_Xword)symbol, type );
+ }
+
+ add_entry( offset, info );
+ }
+
+ //------------------------------------------------------------------------------
+ void add_entry( Elf64_Addr offset, Elf_Xword info, Elf_Sxword addend )
+ {
+ if ( elf_file.get_class() == ELFCLASS32 ) {
+ generic_add_entry<Elf32_Rela>( offset, info, addend );
+ }
+ else {
+ generic_add_entry<Elf64_Rela>( offset, info, addend );
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ void add_entry( Elf64_Addr offset,
+ Elf_Word symbol,
+ unsigned char type,
+ Elf_Sxword addend )
+ {
+ Elf_Xword info;
+ if ( elf_file.get_class() == ELFCLASS32 ) {
+ info = ELF32_R_INFO( (Elf_Xword)symbol, type );
+ }
+ else {
+ info = ELF64_R_INFO( (Elf_Xword)symbol, type );
+ }
+
+ add_entry( offset, info, addend );
+ }
+
+ //------------------------------------------------------------------------------
+ void add_entry( string_section_accessor str_writer,
+ const char* str,
+ symbol_section_accessor sym_writer,
+ Elf64_Addr value,
+ Elf_Word size,
+ unsigned char sym_info,
+ unsigned char other,
+ Elf_Half shndx,
+ Elf64_Addr offset,
+ unsigned char type )
+ {
+ Elf_Word str_index = str_writer.add_string( str );
+ Elf_Word sym_index = sym_writer.add_symbol( str_index, value, size,
+ sym_info, other, shndx );
+ add_entry( offset, sym_index, type );
+ }
+
+ //------------------------------------------------------------------------------
+ void swap_symbols( Elf_Xword first, Elf_Xword second )
+ {
+ Elf64_Addr offset;
+ Elf_Word symbol;
+ Elf_Word rtype;
+ Elf_Sxword addend;
+ for ( Elf_Word i = 0; i < get_entries_num(); i++ ) {
+ get_entry( i, offset, symbol, rtype, addend );
+ if ( symbol == first ) {
+ set_entry( i, offset, (Elf_Word)second, rtype, addend );
+ }
+ if ( symbol == second ) {
+ set_entry( i, offset, (Elf_Word)first, rtype, addend );
+ }
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ //------------------------------------------------------------------------------
+ Elf_Half get_symbol_table_index() const
+ {
+ return (Elf_Half)relocation_section->get_link();
+ }
+
+ //------------------------------------------------------------------------------
+ template <class T>
+ void generic_get_entry_rel( Elf_Xword index,
+ Elf64_Addr& offset,
+ Elf_Word& symbol,
+ Elf_Word& type,
+ Elf_Sxword& addend ) const
+ {
+ const endianess_convertor& convertor = elf_file.get_convertor();
+
+ const T* pEntry = reinterpret_cast<const T*>(
+ relocation_section->get_data() +
+ index * relocation_section->get_entry_size() );
+ offset = convertor( pEntry->r_offset );
+ Elf_Xword tmp = convertor( pEntry->r_info );
+ symbol = get_sym_and_type<T>::get_r_sym( tmp );
+ type = get_sym_and_type<T>::get_r_type( tmp );
+ addend = 0;
+ }
+
+ //------------------------------------------------------------------------------
+ template <class T>
+ void generic_get_entry_rela( Elf_Xword index,
+ Elf64_Addr& offset,
+ Elf_Word& symbol,
+ Elf_Word& type,
+ Elf_Sxword& addend ) const
+ {
+ const endianess_convertor& convertor = elf_file.get_convertor();
+
+ const T* pEntry = reinterpret_cast<const T*>(
+ relocation_section->get_data() +
+ index * relocation_section->get_entry_size() );
+ offset = convertor( pEntry->r_offset );
+ Elf_Xword tmp = convertor( pEntry->r_info );
+ symbol = get_sym_and_type<T>::get_r_sym( tmp );
+ type = get_sym_and_type<T>::get_r_type( tmp );
+ addend = convertor( pEntry->r_addend );
+ }
+
+ //------------------------------------------------------------------------------
+ template <class T>
+ void generic_set_entry_rel( Elf_Xword index,
+ Elf64_Addr offset,
+ Elf_Word symbol,
+ Elf_Word type,
+ Elf_Sxword )
+ {
+ const endianess_convertor& convertor = elf_file.get_convertor();
+
+ T* pEntry = const_cast<T*>( reinterpret_cast<const T*>(
+ relocation_section->get_data() +
+ index * relocation_section->get_entry_size() ) );
+
+ if ( elf_file.get_class() == ELFCLASS32 ) {
+ pEntry->r_info = ELF32_R_INFO( (Elf_Xword)symbol, type );
+ }
+ else {
+ pEntry->r_info = ELF64_R_INFO( (Elf_Xword)symbol, type );
+ }
+ pEntry->r_offset = offset;
+ pEntry->r_offset = convertor( pEntry->r_offset );
+ pEntry->r_info = convertor( pEntry->r_info );
+ }
+
+ //------------------------------------------------------------------------------
+ template <class T>
+ void generic_set_entry_rela( Elf_Xword index,
+ Elf64_Addr offset,
+ Elf_Word symbol,
+ Elf_Word type,
+ Elf_Sxword addend )
+ {
+ const endianess_convertor& convertor = elf_file.get_convertor();
+
+ T* pEntry = const_cast<T*>( reinterpret_cast<const T*>(
+ relocation_section->get_data() +
+ index * relocation_section->get_entry_size() ) );
+
+ if ( elf_file.get_class() == ELFCLASS32 ) {
+ pEntry->r_info = ELF32_R_INFO( (Elf_Xword)symbol, type );
+ }
+ else {
+ pEntry->r_info = ELF64_R_INFO( (Elf_Xword)symbol, type );
+ }
+ pEntry->r_offset = offset;
+ pEntry->r_addend = addend;
+ pEntry->r_offset = convertor( pEntry->r_offset );
+ pEntry->r_info = convertor( pEntry->r_info );
+ pEntry->r_addend = convertor( pEntry->r_addend );
+ }
+
+ //------------------------------------------------------------------------------
+ template <class T>
+ void generic_add_entry( Elf64_Addr offset, Elf_Xword info )
+ {
+ const endianess_convertor& convertor = elf_file.get_convertor();
+
+ T entry;
+ entry.r_offset = offset;
+ entry.r_info = info;
+ entry.r_offset = convertor( entry.r_offset );
+ entry.r_info = convertor( entry.r_info );
+
+ relocation_section->append_data( reinterpret_cast<char*>( &entry ),
+ sizeof( entry ) );
+ }
+
+ //------------------------------------------------------------------------------
+ template <class T>
+ void
+ generic_add_entry( Elf64_Addr offset, Elf_Xword info, Elf_Sxword addend )
+ {
+ const endianess_convertor& convertor = elf_file.get_convertor();
+
+ T entry;
+ entry.r_offset = offset;
+ entry.r_info = info;
+ entry.r_addend = addend;
+ entry.r_offset = convertor( entry.r_offset );
+ entry.r_info = convertor( entry.r_info );
+ entry.r_addend = convertor( entry.r_addend );
+
+ relocation_section->append_data( reinterpret_cast<char*>( &entry ),
+ sizeof( entry ) );
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ const elfio& elf_file;
+ S* relocation_section;
+};
+
+using relocation_section_accessor =
+ relocation_section_accessor_template<section>;
+using const_relocation_section_accessor =
+ relocation_section_accessor_template<const section>;
+
+} // namespace ELFIO
+
+#endif // ELFIO_RELOCATION_HPP
+
+/*** End of inlined file: elfio_relocation.hpp ***/
+
+
+/*** Start of inlined file: elfio_dynamic.hpp ***/
+#ifndef ELFIO_DYNAMIC_HPP
+#define ELFIO_DYNAMIC_HPP
+
+namespace ELFIO {
+
+//------------------------------------------------------------------------------
+template <class S> class dynamic_section_accessor_template
+{
+ public:
+ //------------------------------------------------------------------------------
+ dynamic_section_accessor_template( const elfio& elf_file_, S* section_ )
+ : elf_file( elf_file_ ), dynamic_section( section_ )
+ {
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Xword get_entries_num() const
+ {
+ Elf_Xword nRet = 0;
+
+ if ( 0 != dynamic_section->get_entry_size() ) {
+ nRet =
+ dynamic_section->get_size() / dynamic_section->get_entry_size();
+ }
+
+ return nRet;
+ }
+
+ //------------------------------------------------------------------------------
+ bool get_entry( Elf_Xword index,
+ Elf_Xword& tag,
+ Elf_Xword& value,
+ std::string& str ) const
+ {
+ if ( index >= get_entries_num() ) { // Is index valid
+ return false;
+ }
+
+ if ( elf_file.get_class() == ELFCLASS32 ) {
+ generic_get_entry_dyn<Elf32_Dyn>( index, tag, value );
+ }
+ else {
+ generic_get_entry_dyn<Elf64_Dyn>( index, tag, value );
+ }
+
+ // If the tag may have a string table reference, prepare the string
+ if ( tag == DT_NEEDED || tag == DT_SONAME || tag == DT_RPATH ||
+ tag == DT_RUNPATH ) {
+ string_section_accessor strsec =
+ elf_file.sections[get_string_table_index()];
+ const char* result = strsec.get_string( value );
+ if ( 0 == result ) {
+ str.clear();
+ return false;
+ }
+ str = result;
+ }
+ else {
+ str.clear();
+ }
+
+ return true;
+ }
+
+ //------------------------------------------------------------------------------
+ void add_entry( Elf_Xword tag, Elf_Xword value )
+ {
+ if ( elf_file.get_class() == ELFCLASS32 ) {
+ generic_add_entry<Elf32_Dyn>( tag, value );
+ }
+ else {
+ generic_add_entry<Elf64_Dyn>( tag, value );
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ void add_entry( Elf_Xword tag, const std::string& str )
+ {
+ string_section_accessor strsec =
+ elf_file.sections[get_string_table_index()];
+ Elf_Xword value = strsec.add_string( str );
+ add_entry( tag, value );
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ //------------------------------------------------------------------------------
+ Elf_Half get_string_table_index() const
+ {
+ return (Elf_Half)dynamic_section->get_link();
+ }
+
+ //------------------------------------------------------------------------------
+ template <class T>
+ void generic_get_entry_dyn( Elf_Xword index,
+ Elf_Xword& tag,
+ Elf_Xword& value ) const
+ {
+ const endianess_convertor& convertor = elf_file.get_convertor();
+
+ // Check unusual case when dynamic section has no data
+ if ( dynamic_section->get_data() == 0 ||
+ ( index + 1 ) * dynamic_section->get_entry_size() >
+ dynamic_section->get_size() ) {
+ tag = DT_NULL;
+ value = 0;
+ return;
+ }
+
+ const T* pEntry = reinterpret_cast<const T*>(
+ dynamic_section->get_data() +
+ index * dynamic_section->get_entry_size() );
+ tag = convertor( pEntry->d_tag );
+ switch ( tag ) {
+ case DT_NULL:
+ case DT_SYMBOLIC:
+ case DT_TEXTREL:
+ case DT_BIND_NOW:
+ value = 0;
+ break;
+ case DT_NEEDED:
+ case DT_PLTRELSZ:
+ case DT_RELASZ:
+ case DT_RELAENT:
+ case DT_STRSZ:
+ case DT_SYMENT:
+ case DT_SONAME:
+ case DT_RPATH:
+ case DT_RELSZ:
+ case DT_RELENT:
+ case DT_PLTREL:
+ case DT_INIT_ARRAYSZ:
+ case DT_FINI_ARRAYSZ:
+ case DT_RUNPATH:
+ case DT_FLAGS:
+ case DT_PREINIT_ARRAYSZ:
+ value = convertor( pEntry->d_un.d_val );
+ break;
+ case DT_PLTGOT:
+ case DT_HASH:
+ case DT_STRTAB:
+ case DT_SYMTAB:
+ case DT_RELA:
+ case DT_INIT:
+ case DT_FINI:
+ case DT_REL:
+ case DT_DEBUG:
+ case DT_JMPREL:
+ case DT_INIT_ARRAY:
+ case DT_FINI_ARRAY:
+ case DT_PREINIT_ARRAY:
+ default:
+ value = convertor( pEntry->d_un.d_ptr );
+ break;
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ template <class T> void generic_add_entry( Elf_Xword tag, Elf_Xword value )
+ {
+ const endianess_convertor& convertor = elf_file.get_convertor();
+
+ T entry;
+
+ switch ( tag ) {
+ case DT_NULL:
+ case DT_SYMBOLIC:
+ case DT_TEXTREL:
+ case DT_BIND_NOW:
+ value = 0;
+ case DT_NEEDED:
+ case DT_PLTRELSZ:
+ case DT_RELASZ:
+ case DT_RELAENT:
+ case DT_STRSZ:
+ case DT_SYMENT:
+ case DT_SONAME:
+ case DT_RPATH:
+ case DT_RELSZ:
+ case DT_RELENT:
+ case DT_PLTREL:
+ case DT_INIT_ARRAYSZ:
+ case DT_FINI_ARRAYSZ:
+ case DT_RUNPATH:
+ case DT_FLAGS:
+ case DT_PREINIT_ARRAYSZ:
+ entry.d_un.d_val = convertor( value );
+ break;
+ case DT_PLTGOT:
+ case DT_HASH:
+ case DT_STRTAB:
+ case DT_SYMTAB:
+ case DT_RELA:
+ case DT_INIT:
+ case DT_FINI:
+ case DT_REL:
+ case DT_DEBUG:
+ case DT_JMPREL:
+ case DT_INIT_ARRAY:
+ case DT_FINI_ARRAY:
+ case DT_PREINIT_ARRAY:
+ default:
+ entry.d_un.d_ptr = convertor( value );
+ break;
+ }
+
+ entry.d_tag = convertor( tag );
+
+ dynamic_section->append_data( reinterpret_cast<char*>( &entry ),
+ sizeof( entry ) );
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ const elfio& elf_file;
+ S* dynamic_section;
+};
+
+using dynamic_section_accessor = dynamic_section_accessor_template<section>;
+using const_dynamic_section_accessor =
+ dynamic_section_accessor_template<const section>;
+
+} // namespace ELFIO
+
+#endif // ELFIO_DYNAMIC_HPP
+
+/*** End of inlined file: elfio_dynamic.hpp ***/
+
+
+/*** Start of inlined file: elfio_modinfo.hpp ***/
+#ifndef ELFIO_MODINFO_HPP
+#define ELFIO_MODINFO_HPP
+
+#include <string>
+#include <vector>
+
+namespace ELFIO {
+
+//------------------------------------------------------------------------------
+template <class S> class modinfo_section_accessor_template
+{
+ public:
+ //------------------------------------------------------------------------------
+ modinfo_section_accessor_template( S* section_ )
+ : modinfo_section( section_ )
+ {
+ process_section();
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Word get_attribute_num() const { return (Elf_Word)content.size(); }
+
+ //------------------------------------------------------------------------------
+ bool
+ get_attribute( Elf_Word no, std::string& field, std::string& value ) const
+ {
+ if ( no < content.size() ) {
+ field = content[no].first;
+ value = content[no].second;
+ return true;
+ }
+
+ return false;
+ }
+
+ //------------------------------------------------------------------------------
+ bool get_attribute( std::string field_name, std::string& value ) const
+ {
+ for ( auto i = content.begin(); i != content.end(); i++ ) {
+ if ( field_name == i->first ) {
+ value = i->second;
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ //------------------------------------------------------------------------------
+ Elf_Word add_attribute( std::string field, std::string value )
+ {
+ Elf_Word current_position = 0;
+
+ if ( modinfo_section ) {
+ // Strings are addeded to the end of the current section data
+ current_position = (Elf_Word)modinfo_section->get_size();
+
+ std::string attribute = field + "=" + value;
+
+ modinfo_section->append_data( attribute + '\0' );
+ content.push_back(
+ std::pair<std::string, std::string>( field, value ) );
+ }
+
+ return current_position;
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ void process_section()
+ {
+ const char* pdata = modinfo_section->get_data();
+ if ( pdata ) {
+ ELFIO::Elf_Xword i = 0;
+ while ( i < modinfo_section->get_size() ) {
+ while ( i < modinfo_section->get_size() && !pdata[i] )
+ i++;
+ if ( i < modinfo_section->get_size() ) {
+ std::string info = pdata + i;
+ size_t loc = info.find( '=' );
+ std::pair<std::string, std::string> attribute(
+ info.substr( 0, loc ), info.substr( loc + 1 ) );
+
+ content.push_back( attribute );
+
+ i += info.length();
+ }
+ }
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ private:
+ S* modinfo_section;
+ std::vector<std::pair<std::string, std::string>> content;
+};
+
+using modinfo_section_accessor = modinfo_section_accessor_template<section>;
+using const_modinfo_section_accessor =
+ modinfo_section_accessor_template<const section>;
+
+} // namespace ELFIO
+
+#endif // ELFIO_MODINFO_HPP
+
+/*** End of inlined file: elfio_modinfo.hpp ***/
+
+#ifdef _MSC_VER
+#pragma warning( pop )
+#endif
+
+#endif // ELFIO_HPP
+
+/*** End of inlined file: elfio.hpp ***/
+
+
+namespace ELFIO {
+
+static struct class_table_t
+{
+ const char key;
+ const char* str;
+} class_table[] = {
+ { ELFCLASS32, "ELF32" },
+ { ELFCLASS64, "ELF64" },
+};
+
+static struct endian_table_t
+{
+ const char key;
+ const char* str;
+} endian_table[] = {
+ { ELFDATANONE, "None" },
+ { ELFDATA2LSB, "Little endian" },
+ { ELFDATA2MSB, "Big endian" },
+};
+
+static struct version_table_t
+{
+ const Elf64_Word key;
+ const char* str;
+} version_table[] = {
+ { EV_NONE, "None" },
+ { EV_CURRENT, "Current" },
+};
+
+static struct type_table_t
+{
+ const Elf32_Half key;
+ const char* str;
+} type_table[] = {
+ { ET_NONE, "No file type" }, { ET_REL, "Relocatable file" },
+ { ET_EXEC, "Executable file" }, { ET_DYN, "Shared object file" },
+ { ET_CORE, "Core file" },
+};
+
+static struct machine_table_t
+{
+ const Elf64_Half key;
+ const char* str;
+} machine_table[] = {
+ { EM_NONE, "No machine" },
+ { EM_M32, "AT&T WE 32100" },
+ { EM_SPARC, "SUN SPARC" },
+ { EM_386, "Intel 80386" },
+ { EM_68K, "Motorola m68k family" },
+ { EM_88K, "Motorola m88k family" },
+ { EM_486, "Intel 80486// Reserved for future use" },
+ { EM_860, "Intel 80860" },
+ { EM_MIPS, "MIPS R3000 (officially, big-endian only)" },
+ { EM_S370, "IBM System/370" },
+ { EM_MIPS_RS3_LE,
+ "MIPS R3000 little-endian (Oct 4 1999 Draft) Deprecated" },
+ { EM_res011, "Reserved" },
+ { EM_res012, "Reserved" },
+ { EM_res013, "Reserved" },
+ { EM_res014, "Reserved" },
+ { EM_PARISC, "HPPA" },
+ { EM_res016, "Reserved" },
+ { EM_VPP550, "Fujitsu VPP500" },
+ { EM_SPARC32PLUS, "Sun's v8plus" },
+ { EM_960, "Intel 80960" },
+ { EM_PPC, "PowerPC" },
+ { EM_PPC64, "64-bit PowerPC" },
+ { EM_S390, "IBM S/390" },
+ { EM_SPU, "Sony/Toshiba/IBM SPU" },
+ { EM_res024, "Reserved" },
+ { EM_res025, "Reserved" },
+ { EM_res026, "Reserved" },
+ { EM_res027, "Reserved" },
+ { EM_res028, "Reserved" },
+ { EM_res029, "Reserved" },
+ { EM_res030, "Reserved" },
+ { EM_res031, "Reserved" },
+ { EM_res032, "Reserved" },
+ { EM_res033, "Reserved" },
+ { EM_res034, "Reserved" },
+ { EM_res035, "Reserved" },
+ { EM_V800, "NEC V800 series" },
+ { EM_FR20, "Fujitsu FR20" },
+ { EM_RH32, "TRW RH32" },
+ { EM_MCORE, "Motorola M*Core // May also be taken by Fujitsu MMA" },
+ { EM_RCE, "Old name for MCore" },
+ { EM_ARM, "ARM" },
+ { EM_OLD_ALPHA, "Digital Alpha" },
+ { EM_SH, "Renesas (formerly Hitachi) / SuperH SH" },
+ { EM_SPARCV9, "SPARC v9 64-bit" },
+ { EM_TRICORE, "Siemens Tricore embedded processor" },
+ { EM_ARC, "ARC Cores" },
+ { EM_H8_300, "Renesas (formerly Hitachi) H8/300" },
+ { EM_H8_300H, "Renesas (formerly Hitachi) H8/300H" },
+ { EM_H8S, "Renesas (formerly Hitachi) H8S" },
+ { EM_H8_500, "Renesas (formerly Hitachi) H8/500" },
+ { EM_IA_64, "Intel IA-64 Processor" },
+ { EM_MIPS_X, "Stanford MIPS-X" },
+ { EM_COLDFIRE, "Motorola Coldfire" },
+ { EM_68HC12, "Motorola M68HC12" },
+ { EM_MMA, "Fujitsu Multimedia Accelerator" },
+ { EM_PCP, "Siemens PCP" },
+ { EM_NCPU, "Sony nCPU embedded RISC processor" },
+ { EM_NDR1, "Denso NDR1 microprocesspr" },
+ { EM_STARCORE, "Motorola Star*Core processor" },
+ { EM_ME16, "Toyota ME16 processor" },
+ { EM_ST100, "STMicroelectronics ST100 processor" },
+ { EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor" },
+ { EM_X86_64, "Advanced Micro Devices X86-64 processor" },
+ { EM_PDSP, "Sony DSP Processor" },
+ { EM_PDP10, "Digital Equipment Corp. PDP-10" },
+ { EM_PDP11, "Digital Equipment Corp. PDP-11" },
+ { EM_FX66, "Siemens FX66 microcontroller" },
+ { EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller" },
+ { EM_ST7, "STMicroelectronics ST7 8-bit microcontroller" },
+ { EM_68HC16, "Motorola MC68HC16 Microcontroller" },
+ { EM_68HC11, "Motorola MC68HC11 Microcontroller" },
+ { EM_68HC08, "Motorola MC68HC08 Microcontroller" },
+ { EM_68HC05, "Motorola MC68HC05 Microcontroller" },
+ { EM_SVX, "Silicon Graphics SVx" },
+ { EM_ST19, "STMicroelectronics ST19 8-bit cpu" },
+ { EM_VAX, "Digital VAX" },
+ { EM_CRIS, "Axis Communications 32-bit embedded processor" },
+ { EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu" },
+ { EM_FIREPATH, "Element 14 64-bit DSP processor" },
+ { EM_ZSP, "LSI Logic's 16-bit DSP processor" },
+ { EM_MMIX, "Donald Knuth's educational 64-bit processor" },
+ { EM_HUANY, "Harvard's machine-independent format" },
+ { EM_PRISM, "SiTera Prism" },
+ { EM_AVR, "Atmel AVR 8-bit microcontroller" },
+ { EM_FR30, "Fujitsu FR30" },
+ { EM_D10V, "Mitsubishi D10V" },
+ { EM_D30V, "Mitsubishi D30V" },
+ { EM_V850, "NEC v850" },
+ { EM_M32R, "Renesas M32R (formerly Mitsubishi M32R)" },
+ { EM_MN10300, "Matsushita MN10300" },
+ { EM_MN10200, "Matsushita MN10200" },
+ { EM_PJ, "picoJava" },
+ { EM_OPENRISC, "OpenRISC 32-bit embedded processor" },
+ { EM_ARC_A5, "ARC Cores Tangent-A5" },
+ { EM_XTENSA, "Tensilica Xtensa Architecture" },
+ { EM_VIDEOCORE, "Alphamosaic VideoCore processor" },
+ { EM_TMM_GPP, "Thompson Multimedia General Purpose Processor" },
+ { EM_NS32K, "National Semiconductor 32000 series" },
+ { EM_TPC, "Tenor Network TPC processor" },
+ { EM_SNP1K, "Trebia SNP 1000 processor" },
+ { EM_ST200, "STMicroelectronics ST200 microcontroller" },
+ { EM_IP2K, "Ubicom IP2022 micro controller" },
+ { EM_MAX, "MAX Processor" },
+ { EM_CR, "National Semiconductor CompactRISC" },
+ { EM_F2MC16, "Fujitsu F2MC16" },
+ { EM_MSP430, "TI msp430 micro controller" },
+ { EM_BLACKFIN, "ADI Blackfin" },
+ { EM_SE_C33, "S1C33 Family of Seiko Epson processors" },
+ { EM_SEP, "Sharp embedded microprocessor" },
+ { EM_ARCA, "Arca RISC Microprocessor" },
+ { EM_UNICORE, "Microprocessor series from PKU-Unity Ltd. and MPRC of "
+ "Peking University" },
+ { EM_EXCESS, "eXcess: 16/32/64-bit configurable embedded CPU" },
+ { EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor" },
+ { EM_ALTERA_NIOS2, "Altera Nios II soft-core processor" },
+ { EM_CRX, "National Semiconductor CRX" },
+ { EM_XGATE, "Motorola XGATE embedded processor" },
+ { EM_C166, "Infineon C16x/XC16x processor" },
+ { EM_M16C, "Renesas M16C series microprocessors" },
+ { EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller" },
+ { EM_CE, "Freescale Communication Engine RISC core" },
+ { EM_M32C, "Renesas M32C series microprocessors" },
+ { EM_res121, "Reserved" },
+ { EM_res122, "Reserved" },
+ { EM_res123, "Reserved" },
+ { EM_res124, "Reserved" },
+ { EM_res125, "Reserved" },
+ { EM_res126, "Reserved" },
+ { EM_res127, "Reserved" },
+ { EM_res128, "Reserved" },
+ { EM_res129, "Reserved" },
+ { EM_res130, "Reserved" },
+ { EM_TSK3000, "Altium TSK3000 core" },
+ { EM_RS08, "Freescale RS08 embedded processor" },
+ { EM_res133, "Reserved" },
+ { EM_ECOG2, "Cyan Technology eCOG2 microprocessor" },
+ { EM_SCORE, "Sunplus Score" },
+ { EM_SCORE7, "Sunplus S+core7 RISC processor" },
+ { EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor" },
+ { EM_VIDEOCORE3, "Broadcom VideoCore III processor" },
+ { EM_LATTICEMICO32, "RISC processor for Lattice FPGA architecture" },
+ { EM_SE_C17, "Seiko Epson C17 family" },
+ { EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family" },
+ { EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family" },
+ { EM_TI_C5500, "Texas Instruments TMS320C55x DSP family" },
+ { EM_res143, "Reserved" },
+ { EM_res144, "Reserved" },
+ { EM_res145, "Reserved" },
+ { EM_res146, "Reserved" },
+ { EM_res147, "Reserved" },
+ { EM_res148, "Reserved" },
+ { EM_res149, "Reserved" },
+ { EM_res150, "Reserved" },
+ { EM_res151, "Reserved" },
+ { EM_res152, "Reserved" },
+ { EM_res153, "Reserved" },
+ { EM_res154, "Reserved" },
+ { EM_res155, "Reserved" },
+ { EM_res156, "Reserved" },
+ { EM_res157, "Reserved" },
+ { EM_res158, "Reserved" },
+ { EM_res159, "Reserved" },
+ { EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor" },
+ { EM_CYPRESS_M8C, "Cypress M8C microprocessor" },
+ { EM_R32C, "Renesas R32C series microprocessors" },
+ { EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family" },
+ { EM_QDSP6, "QUALCOMM DSP6 Processor" },
+ { EM_8051, "Intel 8051 and variants" },
+ { EM_STXP7X, "STMicroelectronics STxP7x family" },
+ { EM_NDS32,
+ "Andes Technology compact code size embedded RISC processor family" },
+ { EM_ECOG1, "Cyan Technology eCOG1X family" },
+ { EM_ECOG1X, "Cyan Technology eCOG1X family" },
+ { EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core Micro-controllers" },
+ { EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor" },
+ { EM_MANIK, "M2000 Reconfigurable RISC Microprocessor" },
+ { EM_CRAYNV2, "Cray Inc. NV2 vector architecture" },
+ { EM_RX, "Renesas RX family" },
+ { EM_METAG, "Imagination Technologies META processor architecture" },
+ { EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture" },
+ { EM_ECOG16, "Cyan Technology eCOG16 family" },
+ { EM_CR16, "National Semiconductor CompactRISC 16-bit processor" },
+ { EM_ETPU, "Freescale Extended Time Processing Unit" },
+ { EM_SLE9X, "Infineon Technologies SLE9X core" },
+ { EM_L1OM, "Intel L1OM" },
+ { EM_INTEL181, "Reserved by Intel" },
+ { EM_INTEL182, "Reserved by Intel" },
+ { EM_res183, "Reserved by ARM" },
+ { EM_res184, "Reserved by ARM" },
+ { EM_AVR32, "Atmel Corporation 32-bit microprocessor family" },
+ { EM_STM8, "STMicroeletronics STM8 8-bit microcontroller" },
+ { EM_TILE64, "Tilera TILE64 multicore architecture family" },
+ { EM_TILEPRO, "Tilera TILEPro multicore architecture family" },
+ { EM_MICROBLAZE, "Xilinx MicroBlaze 32-bit RISC soft processor core" },
+ { EM_CUDA, "NVIDIA CUDA architecture " },
+};
+
+static struct section_type_table_t
+{
+ const Elf64_Half key;
+ const char* str;
+} section_type_table[] = {
+ { SHT_NULL, "NULL" },
+ { SHT_PROGBITS, "PROGBITS" },
+ { SHT_SYMTAB, "SYMTAB" },
+ { SHT_STRTAB, "STRTAB" },
+ { SHT_RELA, "RELA" },
+ { SHT_HASH, "HASH" },
+ { SHT_DYNAMIC, "DYNAMIC" },
+ { SHT_NOTE, "NOTE" },
+ { SHT_NOBITS, "NOBITS" },
+ { SHT_REL, "REL" },
+ { SHT_SHLIB, "SHLIB" },
+ { SHT_DYNSYM, "DYNSYM" },
+ { SHT_INIT_ARRAY, "INIT_ARRAY" },
+ { SHT_FINI_ARRAY, "FINI_ARRAY" },
+ { SHT_PREINIT_ARRAY, "PREINIT_ARRAY" },
+ { SHT_GROUP, "GROUP" },
+ { SHT_SYMTAB_SHNDX, "SYMTAB_SHNDX " },
+};
+
+static struct segment_type_table_t
+{
+ const Elf_Word key;
+ const char* str;
+} segment_type_table[] = {
+ { PT_NULL, "NULL" }, { PT_LOAD, "LOAD" }, { PT_DYNAMIC, "DYNAMIC" },
+ { PT_INTERP, "INTERP" }, { PT_NOTE, "NOTE" }, { PT_SHLIB, "SHLIB" },
+ { PT_PHDR, "PHDR" }, { PT_TLS, "TLS" },
+};
+
+static struct segment_flag_table_t
+{
+ const Elf_Word key;
+ const char* str;
+} segment_flag_table[] = {
+ { 0, "" }, { 1, "X" }, { 2, "W" }, { 3, "WX" },
+ { 4, "R" }, { 5, "RX" }, { 6, "RW" }, { 7, "RWX" },
+};
+
+static struct symbol_bind_t
+{
+ const Elf_Word key;
+ const char* str;
+} symbol_bind_table[] = {
+ { STB_LOCAL, "LOCAL" }, { STB_GLOBAL, "GLOBAL" },
+ { STB_WEAK, "WEAK" }, { STB_LOOS, "LOOS" },
+ { STB_HIOS, "HIOS" }, { STB_MULTIDEF, "MULTIDEF" },
+ { STB_LOPROC, "LOPROC" }, { STB_HIPROC, "HIPROC" },
+};
+
+static struct symbol_type_t
+{
+ const Elf_Word key;
+ const char* str;
+} symbol_type_table[] = {
+ { STT_NOTYPE, "NOTYPE" }, { STT_OBJECT, "OBJECT" },
+ { STT_FUNC, "FUNC" }, { STT_SECTION, "SECTION" },
+ { STT_FILE, "FILE" }, { STT_COMMON, "COMMON" },
+ { STT_TLS, "TLS" }, { STT_LOOS, "LOOS" },
+ { STT_HIOS, "HIOS" }, { STT_LOPROC, "LOPROC" },
+ { STT_HIPROC, "HIPROC" },
+};
+
+static struct dynamic_tag_t
+{
+ const Elf_Word key;
+ const char* str;
+} dynamic_tag_table[] = {
+ { DT_NULL, "NULL" },
+ { DT_NEEDED, "NEEDED" },
+ { DT_PLTRELSZ, "PLTRELSZ" },
+ { DT_PLTGOT, "PLTGOT" },
+ { DT_HASH, "HASH" },
+ { DT_STRTAB, "STRTAB" },
+ { DT_SYMTAB, "SYMTAB" },
+ { DT_RELA, "RELA" },
+ { DT_RELASZ, "RELASZ" },
+ { DT_RELAENT, "RELAENT" },
+ { DT_STRSZ, "STRSZ" },
+ { DT_SYMENT, "SYMENT" },
+ { DT_INIT, "INIT" },
+ { DT_FINI, "FINI" },
+ { DT_SONAME, "SONAME" },
+ { DT_RPATH, "RPATH" },
+ { DT_SYMBOLIC, "SYMBOLIC" },
+ { DT_REL, "REL" },
+ { DT_RELSZ, "RELSZ" },
+ { DT_RELENT, "RELENT" },
+ { DT_PLTREL, "PLTREL" },
+ { DT_DEBUG, "DEBUG" },
+ { DT_TEXTREL, "TEXTREL" },
+ { DT_JMPREL, "JMPREL" },
+ { DT_BIND_NOW, "BIND_NOW" },
+ { DT_INIT_ARRAY, "INIT_ARRAY" },
+ { DT_FINI_ARRAY, "FINI_ARRAY" },
+ { DT_INIT_ARRAYSZ, "INIT_ARRAYSZ" },
+ { DT_FINI_ARRAYSZ, "FINI_ARRAYSZ" },
+ { DT_RUNPATH, "RUNPATH" },
+ { DT_FLAGS, "FLAGS" },
+ { DT_ENCODING, "ENCODING" },
+ { DT_PREINIT_ARRAY, "PREINIT_ARRAY" },
+ { DT_PREINIT_ARRAYSZ, "PREINIT_ARRAYSZ" },
+ { DT_MAXPOSTAGS, "MAXPOSTAGS" },
+};
+
+static const ELFIO::Elf_Xword MAX_DATA_ENTRIES = 64;
+
+//------------------------------------------------------------------------------
+class dump
+{
+#define DUMP_DEC_FORMAT( width ) \
+ std::setw( width ) << std::setfill( ' ' ) << std::dec << std::right
+#define DUMP_HEX_FORMAT( width ) \
+ std::setw( width ) << std::setfill( '0' ) << std::hex << std::right
+#define DUMP_STR_FORMAT( width ) \
+ std::setw( width ) << std::setfill( ' ' ) << std::hex << std::left
+
+ public:
+ //------------------------------------------------------------------------------
+ static void header( std::ostream& out, const elfio& reader )
+ {
+ if ( !reader.get_header_size() ) {
+ return;
+ }
+ out << "ELF Header" << std::endl
+ << std::endl
+ << " Class: " << str_class( reader.get_class() ) << std::endl
+ << " Encoding: " << str_endian( reader.get_encoding() )
+ << std::endl
+ << " ELFVersion: " << str_version( reader.get_elf_version() )
+ << std::endl
+ << " Type: " << str_type( reader.get_type() ) << std::endl
+ << " Machine: " << str_machine( reader.get_machine() )
+ << std::endl
+ << " Version: " << str_version( reader.get_version() )
+ << std::endl
+ << " Entry: "
+ << "0x" << std::hex << reader.get_entry() << std::endl
+ << " Flags: "
+ << "0x" << std::hex << reader.get_flags() << std::endl
+ << std::endl;
+ }
+
+ //------------------------------------------------------------------------------
+ static void section_headers( std::ostream& out, const elfio& reader )
+ {
+ Elf_Half n = reader.sections.size();
+
+ if ( n == 0 ) {
+ return;
+ }
+
+ out << "Section Headers:" << std::endl;
+ if ( reader.get_class() == ELFCLASS32 ) { // Output for 32-bit
+ out << "[ Nr ] Type Addr Size ES Flg Lk Inf "
+ "Al Name"
+ << std::endl;
+ }
+ else { // Output for 64-bit
+ out << "[ Nr ] Type Addr Size "
+ " ES Flg"
+ << std::endl
+ << " Lk Inf Al Name" << std::endl;
+ }
+
+ for ( Elf_Half i = 0; i < n; ++i ) { // For all sections
+ section* sec = reader.sections[i];
+ section_header( out, i, sec, reader.get_class() );
+ }
+
+ out << "Key to Flags: W (write), A (alloc), X (execute)\n\n"
+ << std::endl;
+ }
+
+ //------------------------------------------------------------------------------
+ static void section_header( std::ostream& out,
+ Elf_Half no,
+ const section* sec,
+ unsigned char elf_class )
+ {
+ std::ios_base::fmtflags original_flags = out.flags();
+
+ if ( elf_class == ELFCLASS32 ) { // Output for 32-bit
+ out << "[" << DUMP_DEC_FORMAT( 5 ) << no << "] "
+ << DUMP_STR_FORMAT( 17 ) << str_section_type( sec->get_type() )
+ << " " << DUMP_HEX_FORMAT( 8 ) << sec->get_address() << " "
+ << DUMP_HEX_FORMAT( 8 ) << sec->get_size() << " "
+ << DUMP_HEX_FORMAT( 2 ) << sec->get_entry_size() << " "
+ << DUMP_STR_FORMAT( 3 ) << section_flags( sec->get_flags() )
+ << " " << DUMP_HEX_FORMAT( 2 ) << sec->get_link() << " "
+ << DUMP_HEX_FORMAT( 3 ) << sec->get_info() << " "
+ << DUMP_HEX_FORMAT( 2 ) << sec->get_addr_align() << " "
+ << DUMP_STR_FORMAT( 17 ) << sec->get_name() << " " << std::endl;
+ }
+ else { // Output for 64-bit
+ out << "[" << DUMP_DEC_FORMAT( 5 ) << no << "] "
+ << DUMP_STR_FORMAT( 17 ) << str_section_type( sec->get_type() )
+ << " " << DUMP_HEX_FORMAT( 16 ) << sec->get_address() << " "
+ << DUMP_HEX_FORMAT( 16 ) << sec->get_size() << " "
+ << DUMP_HEX_FORMAT( 4 ) << sec->get_entry_size() << " "
+ << DUMP_STR_FORMAT( 3 ) << section_flags( sec->get_flags() )
+ << " " << std::endl
+ << " " << DUMP_HEX_FORMAT( 4 ) << sec->get_link() << " "
+ << DUMP_HEX_FORMAT( 4 ) << sec->get_info() << " "
+ << DUMP_HEX_FORMAT( 4 ) << sec->get_addr_align() << " "
+ << DUMP_STR_FORMAT( 17 ) << sec->get_name() << " " << std::endl;
+ }
+
+ out.flags( original_flags );
+
+ return;
+ }
+
+ //------------------------------------------------------------------------------
+ static void segment_headers( std::ostream& out, const elfio& reader )
+ {
+ Elf_Half n = reader.segments.size();
+ if ( n == 0 ) {
+ return;
+ }
+
+ out << "Segment headers:" << std::endl;
+ if ( reader.get_class() == ELFCLASS32 ) { // Output for 32-bit
+ out << "[ Nr ] Type VirtAddr PhysAddr FileSize Mem.Size "
+ "Flags Align"
+ << std::endl;
+ }
+ else { // Output for 64-bit
+ out << "[ Nr ] Type VirtAddr PhysAddr "
+ "Flags"
+ << std::endl
+ << " FileSize Mem.Size "
+ "Align"
+ << std::endl;
+ }
+
+ for ( Elf_Half i = 0; i < n; ++i ) {
+ segment* seg = reader.segments[i];
+ segment_header( out, i, seg, reader.get_class() );
+ }
+
+ out << std::endl;
+ }
+
+ //------------------------------------------------------------------------------
+ static void segment_header( std::ostream& out,
+ Elf_Half no,
+ const segment* seg,
+ unsigned int elf_class )
+ {
+ std::ios_base::fmtflags original_flags = out.flags();
+
+ if ( elf_class == ELFCLASS32 ) { // Output for 32-bit
+ out << "[" << DUMP_DEC_FORMAT( 5 ) << no << "] "
+ << DUMP_STR_FORMAT( 14 ) << str_segment_type( seg->get_type() )
+ << " " << DUMP_HEX_FORMAT( 8 ) << seg->get_virtual_address()
+ << " " << DUMP_HEX_FORMAT( 8 ) << seg->get_physical_address()
+ << " " << DUMP_HEX_FORMAT( 8 ) << seg->get_file_size() << " "
+ << DUMP_HEX_FORMAT( 8 ) << seg->get_memory_size() << " "
+ << DUMP_STR_FORMAT( 8 ) << str_segment_flag( seg->get_flags() )
+ << " " << DUMP_HEX_FORMAT( 8 ) << seg->get_align() << " "
+ << std::endl;
+ }
+ else { // Output for 64-bit
+ out << "[" << DUMP_DEC_FORMAT( 5 ) << no << "] "
+ << DUMP_STR_FORMAT( 14 ) << str_segment_type( seg->get_type() )
+ << " " << DUMP_HEX_FORMAT( 16 ) << seg->get_virtual_address()
+ << " " << DUMP_HEX_FORMAT( 16 ) << seg->get_physical_address()
+ << " " << DUMP_STR_FORMAT( 16 )
+ << str_segment_flag( seg->get_flags() ) << " " << std::endl
+ << " " << DUMP_HEX_FORMAT( 16 )
+ << seg->get_file_size() << " " << DUMP_HEX_FORMAT( 16 )
+ << seg->get_memory_size() << " " << DUMP_HEX_FORMAT( 16 )
+ << seg->get_align() << " " << std::endl;
+ }
+
+ out.flags( original_flags );
+ }
+
+ //------------------------------------------------------------------------------
+ static void symbol_tables( std::ostream& out, const elfio& reader )
+ {
+ Elf_Half n = reader.sections.size();
+ for ( Elf_Half i = 0; i < n; ++i ) { // For all sections
+ section* sec = reader.sections[i];
+ if ( SHT_SYMTAB == sec->get_type() ||
+ SHT_DYNSYM == sec->get_type() ) {
+ symbol_section_accessor symbols( reader, sec );
+
+ Elf_Xword sym_no = symbols.get_symbols_num();
+ if ( sym_no > 0 ) {
+ out << "Symbol table (" << sec->get_name() << ")"
+ << std::endl;
+ if ( reader.get_class() ==
+ ELFCLASS32 ) { // Output for 32-bit
+ out << "[ Nr ] Value Size Type Bind "
+ "Sect Name"
+ << std::endl;
+ }
+ else { // Output for 64-bit
+ out << "[ Nr ] Value Size Type "
+ " Bind Sect"
+ << std::endl
+ << " Name" << std::endl;
+ }
+ for ( Elf_Xword i = 0; i < sym_no; ++i ) {
+ std::string name;
+ Elf64_Addr value = 0;
+ Elf_Xword size = 0;
+ unsigned char bind = 0;
+ unsigned char type = 0;
+ Elf_Half section = 0;
+ unsigned char other = 0;
+ symbols.get_symbol( i, name, value, size, bind, type,
+ section, other );
+ symbol_table( out, i, name, value, size, bind, type,
+ section, reader.get_class() );
+ }
+
+ out << std::endl;
+ }
+ }
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ static void symbol_table( std::ostream& out,
+ Elf_Xword no,
+ std::string& name,
+ Elf64_Addr value,
+ Elf_Xword size,
+ unsigned char bind,
+ unsigned char type,
+ Elf_Half section,
+ unsigned int elf_class )
+ {
+ std::ios_base::fmtflags original_flags = out.flags();
+
+ if ( elf_class == ELFCLASS32 ) { // Output for 32-bit
+ out << "[" << DUMP_DEC_FORMAT( 5 ) << no << "] "
+ << DUMP_HEX_FORMAT( 8 ) << value << " " << DUMP_HEX_FORMAT( 8 )
+ << size << " " << DUMP_STR_FORMAT( 7 )
+ << str_symbol_type( type ) << " " << DUMP_STR_FORMAT( 8 )
+ << str_symbol_bind( bind ) << " " << DUMP_DEC_FORMAT( 5 )
+ << section << " " << DUMP_STR_FORMAT( 1 ) << name << " "
+ << std::endl;
+ }
+ else { // Output for 64-bit
+ out << "[" << DUMP_DEC_FORMAT( 5 ) << no << "] "
+ << DUMP_HEX_FORMAT( 16 ) << value << " "
+ << DUMP_HEX_FORMAT( 16 ) << size << " " << DUMP_STR_FORMAT( 7 )
+ << str_symbol_type( type ) << " " << DUMP_STR_FORMAT( 8 )
+ << str_symbol_bind( bind ) << " " << DUMP_DEC_FORMAT( 5 )
+ << section << " " << std::endl
+ << " " << DUMP_STR_FORMAT( 1 ) << name << " "
+ << std::endl;
+ }
+
+ out.flags( original_flags );
+ }
+
+ //------------------------------------------------------------------------------
+ static void notes( std::ostream& out, const elfio& reader )
+ {
+ Elf_Half no = reader.sections.size();
+ for ( Elf_Half i = 0; i < no; ++i ) { // For all sections
+ section* sec = reader.sections[i];
+ if ( SHT_NOTE == sec->get_type() ) { // Look at notes
+ note_section_accessor notes( reader, sec );
+ Elf_Word no_notes = notes.get_notes_num();
+ if ( no > 0 ) {
+ out << "Note section (" << sec->get_name() << ")"
+ << std::endl
+ << " No Type Name" << std::endl;
+ for ( Elf_Word j = 0; j < no_notes; ++j ) { // For all notes
+ Elf_Word type;
+ std::string name;
+ void* desc;
+ Elf_Word descsz;
+
+ if ( notes.get_note( j, type, name, desc, descsz ) ) {
+ // 'name' usually contains \0 at the end. Try to fix it
+ name = name.c_str();
+ note( out, j, type, name );
+ }
+ }
+
+ out << std::endl;
+ }
+ }
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ static void modinfo( std::ostream& out, const elfio& reader )
+ {
+ Elf_Half no = reader.sections.size();
+ for ( Elf_Half i = 0; i < no; ++i ) { // For all sections
+ section* sec = reader.sections[i];
+ if ( ".modinfo" == sec->get_name() ) { // Look for the section
+ out << "Section .modinfo" << std::endl;
+
+ const_modinfo_section_accessor modinfo( sec );
+ for ( Elf_Word i = 0; i < modinfo.get_attribute_num(); i++ ) {
+ std::string field;
+ std::string value;
+ if ( modinfo.get_attribute( i, field, value ) ) {
+ out << " " << std::setw( 20 ) << field
+ << std::setw( 0 ) << " = " << value << std::endl;
+ }
+ }
+
+ out << std::endl;
+ break;
+ }
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ static void
+ note( std::ostream& out, int no, Elf_Word type, const std::string& name )
+ {
+ out << " [" << DUMP_DEC_FORMAT( 2 ) << no << "] "
+ << DUMP_HEX_FORMAT( 8 ) << type << " " << DUMP_STR_FORMAT( 1 )
+ << name << std::endl;
+ }
+
+ //------------------------------------------------------------------------------
+ static void dynamic_tags( std::ostream& out, const elfio& reader )
+ {
+ Elf_Half n = reader.sections.size();
+ for ( Elf_Half i = 0; i < n; ++i ) { // For all sections
+ section* sec = reader.sections[i];
+ if ( SHT_DYNAMIC == sec->get_type() ) {
+ dynamic_section_accessor dynamic( reader, sec );
+
+ Elf_Xword dyn_no = dynamic.get_entries_num();
+ if ( dyn_no > 0 ) {
+ out << "Dynamic section (" << sec->get_name() << ")"
+ << std::endl;
+ out << "[ Nr ] Tag Name/Value" << std::endl;
+ for ( Elf_Xword i = 0; i < dyn_no; ++i ) {
+ Elf_Xword tag = 0;
+ Elf_Xword value = 0;
+ std::string str;
+ dynamic.get_entry( i, tag, value, str );
+ dynamic_tag( out, i, tag, value, str,
+ reader.get_class() );
+ if ( DT_NULL == tag ) {
+ break;
+ }
+ }
+
+ out << std::endl;
+ }
+ }
+ }
+ }
+
+ //------------------------------------------------------------------------------
+ static void dynamic_tag( std::ostream& out,
+ Elf_Xword no,
+ Elf_Xword tag,
+ Elf_Xword value,
+ std::string str,
+ unsigned int /*elf_class*/ )
+ {
+ out << "[" << DUMP_DEC_FORMAT( 5 ) << no << "] "
+ << DUMP_STR_FORMAT( 16 ) << str_dynamic_tag( tag ) << " ";
+ if ( str.empty() ) {
+ out << DUMP_HEX_FORMAT( 16 ) << value << " ";
+ }
+ else {
+ out << DUMP_STR_FORMAT( 32 ) << str << " ";
+ }
+ out << std::endl;
+ }
+
+ //------------------------------------------------------------------------------
+ static void section_data( std::ostream& out, const section* sec )
+ {
+ std::ios_base::fmtflags original_flags = out.flags();
+
+ out << sec->get_name() << std::endl;
+ const char* pdata = sec->get_data();
+ if ( pdata ) {
+ ELFIO::Elf_Xword i;
+ for ( i = 0; i < std::min( sec->get_size(), MAX_DATA_ENTRIES );
+ ++i ) {
+ if ( i % 16 == 0 ) {
+ out << "[" << DUMP_HEX_FORMAT( 8 ) << i << "]";
+ }
+
+ out << " " << DUMP_HEX_FORMAT( 2 ) << ( pdata[i] & 0x000000FF );
+
+ if ( i % 16 == 15 ) {
+ out << std::endl;
+ }
+ }
+ if ( i % 16 != 0 ) {
+ out << std::endl;
+ }
+
+ out.flags( original_flags );
+ }
+
+ return;
+ }
+
+ //------------------------------------------------------------------------------
+ static void section_datas( std::ostream& out, const elfio& reader )
+ {
+ Elf_Half n = reader.sections.size();
+
+ if ( n == 0 ) {
+ return;
+ }
+
+ out << "Section Data:" << std::endl;
+
+ for ( Elf_Half i = 1; i < n; ++i ) { // For all sections
+ section* sec = reader.sections[i];
+ if ( sec->get_type() == SHT_NOBITS ) {
+ continue;
+ }
+ section_data( out, sec );
+ }
+
+ out << std::endl;
+ }
+
+ //------------------------------------------------------------------------------
+ static void
+ segment_data( std::ostream& out, Elf_Half no, const segment* seg )
+ {
+ std::ios_base::fmtflags original_flags = out.flags();
+
+ out << "Segment # " << no << std::endl;
+ const char* pdata = seg->get_data();
+ if ( pdata ) {
+ ELFIO::Elf_Xword i;
+ for ( i = 0; i < std::min( seg->get_file_size(), MAX_DATA_ENTRIES );
+ ++i ) {
+ if ( i % 16 == 0 ) {
+ out << "[" << DUMP_HEX_FORMAT( 8 ) << i << "]";
+ }
+
+ out << " " << DUMP_HEX_FORMAT( 2 ) << ( pdata[i] & 0x000000FF );
+
+ if ( i % 16 == 15 ) {
+ out << std::endl;
+ }
+ }
+ if ( i % 16 != 0 ) {
+ out << std::endl;
+ }
+
+ out.flags( original_flags );
+ }
+
+ return;
+ }
+
+ //------------------------------------------------------------------------------
+ static void segment_datas( std::ostream& out, const elfio& reader )
+ {
+ Elf_Half n = reader.segments.size();
+
+ if ( n == 0 ) {
+ return;
+ }
+
+ out << "Segment Data:" << std::endl;
+
+ for ( Elf_Half i = 0; i < n; ++i ) { // For all sections
+ segment* seg = reader.segments[i];
+ segment_data( out, i, seg );
+ }
+
+ out << std::endl;
+ }
+
+ private:
+ //------------------------------------------------------------------------------
+ template <typename T, typename K>
+ std::string static find_value_in_table( const T& table, const K& key )
+ {
+ std::string res = "?";
+ for ( unsigned int i = 0; i < sizeof( table ) / sizeof( table[0] );
+ ++i ) {
+ if ( table[i].key == key ) {
+ res = table[i].str;
+ break;
+ }
+ }
+
+ return res;
+ }
+
+ //------------------------------------------------------------------------------
+ template <typename T, typename K>
+ static std::string format_assoc( const T& table, const K& key )
+ {
+ std::string str = find_value_in_table( table, key );
+ if ( str == "?" ) {
+ std::ostringstream oss;
+ oss << str << " (0x" << std::hex << key << ")";
+ str = oss.str();
+ }
+
+ return str;
+ }
+
+ //------------------------------------------------------------------------------
+ template <typename T>
+ static std::string format_assoc( const T& table, const char key )
+ {
+ return format_assoc( table, (const int)key );
+ }
+
+ //------------------------------------------------------------------------------
+ static std::string section_flags( Elf_Xword flags )
+ {
+ std::string ret = "";
+ if ( flags & SHF_WRITE ) {
+ ret += "W";
+ }
+ if ( flags & SHF_ALLOC ) {
+ ret += "A";
+ }
+ if ( flags & SHF_EXECINSTR ) {
+ ret += "X";
+ }
+
+ return ret;
+ }
+
+//------------------------------------------------------------------------------
+#define STR_FUNC_TABLE( name ) \
+ template <typename T> static std::string str_##name( const T key ) \
+ { \
+ return format_assoc( name##_table, key ); \
+ }
+
+ STR_FUNC_TABLE( class )
+ STR_FUNC_TABLE( endian )
+ STR_FUNC_TABLE( version )
+ STR_FUNC_TABLE( type )
+ STR_FUNC_TABLE( machine )
+ STR_FUNC_TABLE( section_type )
+ STR_FUNC_TABLE( segment_type )
+ STR_FUNC_TABLE( segment_flag )
+ STR_FUNC_TABLE( symbol_bind )
+ STR_FUNC_TABLE( symbol_type )
+ STR_FUNC_TABLE( dynamic_tag )
+
+#undef STR_FUNC_TABLE
+#undef DUMP_DEC_FORMAT
+#undef DUMP_HEX_FORMAT
+#undef DUMP_STR_FORMAT
+}; // class dump
+
+}; // namespace ELFIO
+
+#endif // ELFIO_DUMP_HPP
+
+/*** End of inlined file: elfio_dump.hpp ***/
+
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