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Posted to issues@stdcxx.apache.org by "Travis Vitek (JIRA)" <ji...@apache.org> on 2008/02/14 10:33:08 UTC
[jira] Assigned: (STDCXX-597) purify reports uninitialized memory
read in _rw_get_char
[ https://issues.apache.org/jira/browse/STDCXX-597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Travis Vitek reassigned STDCXX-597:
-----------------------------------
Assignee: Travis Vitek
> purify reports uninitialized memory read in _rw_get_char
> ---------------------------------------------------------
>
> Key: STDCXX-597
> URL: https://issues.apache.org/jira/browse/STDCXX-597
> Project: C++ Standard Library
> Issue Type: Improvement
> Components: Test Driver
> Affects Versions: 4.2.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Priority: Minor
> Fix For: 4.2.1
>
> Attachments: stdcxx-597.patch
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> {noformat}
> **** Purify instrumented ./21.string.access (pid 2878) ****
> UMR: Uninitialized memory read:
> * This is occurring while in thread 2878:
> _rw_get_char(char const*, char const**, unsigned*) [char.cpp:562]
> rw_match(char const*, char const*, unsigned) [char.cpp:816]
> test_access<char, std::char_traits<char>, std::allocator<char> >(char, std::char_traits<char>*, char*, StringFunc const&, StringTestCase const&) [21.string.access.cpp:274]
> test_access(StringFunc const&, StringTestCase const&) [21.string.access.cpp:317]
> _rw_test_case(StringFunc const&, StringTestCase const&, (*)(StringFunc const&, StringTestCase const&)) [21.strings.cpp:1298]
> _rw_run_cases(StringFunc const&, StringTest const&) [21.strings.cpp:1353]
> * Reading 1 byte from 0x8182256 in the heap.
> * Address 0x8182256 is 14 bytes into a malloc'd block at 0x8182248 of 46 bytes.
> * This block was allocated from thread -1207973632:
> malloc [rtlib.o]
> operator new(unsigned) [libstd15d.so]
> __rw::__rw_allocate(unsigned, int) [memory.cpp:53]
> std::allocator<char>::allocate(unsigned, const*) [_allocator.h:144]
> std::string<char, std::char_traits<char>, std::allocator<char>>::_C_get_rep(unsigned, unsigned) [string.cc:102]
> std::string<char, std::char_traits<char>, std::allocator<char>>::string<char, std::char_traits<char>, std::allocator<char>>[not-in-charge](char const*, unsigned, std::allocator<char> const&) [string.cc:180]
> **** Purify instrumented ./21.string.access (pid 2878) ****
> UMR: Uninitialized memory read:
> * This is occurring while in thread 2878:
> _rw_get_char(char const*, char const**, unsigned*) [char.cpp:562]
> rw_match(char const*, char const*, unsigned) [char.cpp:816]
> test_access<char, UserTraits<char>, std::allocator<char> >(char, UserTraits<char>*, char*, StringFunc const&, StringTestCase const&) [21.string.access.cpp:274]
> test_access(StringFunc const&, StringTestCase const&) [21.string.access.cpp:317]
> _rw_test_case(StringFunc const&, StringTestCase const&, (*)(StringFunc const&, StringTestCase const&)) [21.strings.cpp:1298]
> _rw_run_cases(StringFunc const&, StringTest const&) [21.strings.cpp:1353]
> * Reading 1 byte from 0x818d5a6 in the heap.
> * Address 0x818d5a6 is 14 bytes into a malloc'd block at 0x818d598 of 46 bytes.
> * This block was allocated from thread -1207973632:
> malloc [rtlib.o]
> operator new(unsigned) [libstd15d.so]
> __rw::__rw_allocate(unsigned, int) [memory.cpp:53]
> std::allocator<char>::allocate(unsigned, const*) [_allocator.h:144]
> std::basic_string<char, std::char_traits<char>, std::allocator<char>><char, UserTraits<char>, std::allocator<char> >::_C_get_rep(unsigned, unsigned) [string.cc:102]
> std::basic_string<char, std::char_traits<char>, std::allocator<char>><char, UserTraits<char>, std::allocator<char> >::basic_string<char, std::char_traits<char>, std::allocator<char>>[not-in-charge](char const*, unsigned, std::allocator<char> const&) [string.cc:180]
> {noformat}
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