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Posted to commits@mesos.apache.org by ya...@apache.org on 2017/02/09 21:47:58 UTC
[3/3] mesos git commit: Add support for the ELF .interp section.
Add support for the ELF .interp section.
Review: https://reviews.apache.org/r/56465/
Project: http://git-wip-us.apache.org/repos/asf/mesos/repo
Commit: http://git-wip-us.apache.org/repos/asf/mesos/commit/96f49919
Tree: http://git-wip-us.apache.org/repos/asf/mesos/tree/96f49919
Diff: http://git-wip-us.apache.org/repos/asf/mesos/diff/96f49919
Branch: refs/heads/master
Commit: 96f49919325f383e4f7f557fe61a267ee808aefb
Parents: c2388a5
Author: James Peach <jp...@apache.org>
Authored: Thu Feb 9 13:39:10 2017 -0800
Committer: Jiang Yan Xu <xu...@apple.com>
Committed: Thu Feb 9 13:40:51 2017 -0800
----------------------------------------------------------------------
3rdparty/stout/include/stout/elf.hpp | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
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http://git-wip-us.apache.org/repos/asf/mesos/blob/96f49919/3rdparty/stout/include/stout/elf.hpp
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diff --git a/3rdparty/stout/include/stout/elf.hpp b/3rdparty/stout/include/stout/elf.hpp
index 2bf91a0..da2ce0c 100644
--- a/3rdparty/stout/include/stout/elf.hpp
+++ b/3rdparty/stout/include/stout/elf.hpp
@@ -46,6 +46,7 @@ enum class SectionType
{
DYNAMIC = SHT_DYNAMIC,
NOTE = SHT_NOTE,
+ PROGBITS = SHT_PROGBITS,
};
enum class DynamicTag
@@ -150,7 +151,7 @@ public:
}
if (SectionType(section->get_type()) != SectionType::NOTE) {
- return Error("Section '.note.ABI-tag' is not a NOTE");
+ return Error("Section '.note.ABI-tag' is not a NOTE section");
}
auto accessor = ELFIO::note_section_accessor(elf, section);
@@ -197,6 +198,26 @@ public:
return Version(version[1], version[2], version[3]);
}
+ // Return the contents of the .interp section, if such a
+ // section exits. For Linux ELF executables, the .interp
+ // section contains the path to the program loader.
+ //
+ // https://refspecs.linuxfoundation.org/LSB_1.2.0/gLSB/specialsections.html
+ Result<std::string> get_interpreter() const
+ {
+ ELFIO::section* section = elf.sections[".interp"];
+
+ if (section == nullptr) {
+ return None();
+ }
+
+ if (SectionType(section->get_type()) != SectionType::PROGBITS) {
+ return Error("Section '.interp' is not a PROGBITS section");
+ }
+
+ return std::string(section->get_data(), section->get_size());
+ }
+
private:
explicit File() {}