我有以下valgrind输出:
==28099==
==28099== HEAP SUMMARY:
==28099== in use at exit: 0 bytes in 0 blocks
==28099== total heap usage: 131 allocs, 131 frees, 3,472 bytes allocated
==28099==
==28099== All heap blocks were freed -- no leaks are possible
==28099==
==28099== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 4 from 4)
--28099--
--28099-- used_suppression: 2 dl-hack3-cond-1
--28099-- used_suppression: 2 glibc-2.5.x-on-SUSE-10.2-(PPC)-2a
==28099==
==28099== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 4 from 4)
有4个被抑制的错误。虽然这里没有泄漏,但在移植到另一个系统时创建了问题。
[编辑]
我也使用 valgrind -v
选项重新运行。但我没有发现任何错误。
==30287== Memcheck, a memory error detector
==30287== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al.
==30287== Using Valgrind-3.6.0.SVN-Debian and LibVEX; rerun with -h for copyright info
==30287== Command: ./EXECUTABLE1 test_input.txt
==30287==
--30287-- Valgrind options:
--30287-- --suppressions=/usr/lib/valgrind/debian-libc6-dbg.supp
--30287-- -v
--30287-- --gen-suppressions=all
--30287-- --error-limit=no
--30287-- Contents of /proc/version:
--30287-- Linux version 2.6.38.3.2.amd64-smp (gcc version 4.4.5 (Debian 4.4.5-8) ) #1 SMP Wed Apr 20 17:36:19 CEST 2011
--30287-- Arch and hwcaps: AMD64, amd64-sse3-cx16
--30287-- Page sizes: currently 4096, max supported 4096
--30287-- Valgrind library directory: /usr/lib/valgrind
--30287-- Reading syms from /home/path/to/file(0x400000)
--30287-- Reading syms from /lib/ld-2.11.2.so (0x4000000)
--30287-- Considering /lib/ld-2.11.2.so ..
--30287-- .. CRC mismatch (computed cd91cee9 wanted 11b4673c)
--30287-- Considering /usr/lib/debug/lib/ld-2.11.2.so ..
--30287-- .. CRC is valid
--30287-- Reading syms from /usr/lib/valgrind/memcheck-amd64-linux (0x38000000)
--30287-- object doesn't have a dynamic symbol table
--30287-- Reading suppressions file: /usr/lib/valgrind/debian-libc6-dbg.supp
--30287-- Reading suppressions file: /usr/lib/valgrind/default.supp
--30287-- REDIR: 0x4016230 (strlen) redirected to 0x380408a7 (vgPlain_amd64_linux_REDIR_FOR_strlen)
--30287-- Reading syms from /usr/lib/valgrind/vgpreload_core-amd64-linux.so (0x4a20000)
--30287-- Reading syms from /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so (0x4c21000)
==30287== WARNING: new redirection conflicts with existing -- ignoring it
--30287-- new: 0x04016230 (strlen ) R-> 0x04c25850 strlen
--30287-- REDIR: 0x40160a0 (index) redirected to 0x4c25460 (index)
--30287-- REDIR: 0x4016120 (strcmp) redirected to 0x4c25e30 (strcmp)
--30287-- Reading syms from /lib/libm-2.11.2.so (0x4e29000)
--30287-- Considering /lib/libm-2.11.2.so ..
--30287-- .. CRC mismatch (computed dd5c85df wanted ccd85fcf)
--30287-- Considering /usr/lib/debug/lib/libm-2.11.2.so ..
--30287-- .. CRC is valid
--30287-- Reading syms from /lib/libc-2.11.2.so (0x50ab000)
--30287-- Considering /lib/libc-2.11.2.so ..
--30287-- .. CRC mismatch (computed 7d8e8f4f wanted 9b015f2c)
--30287-- Considering /usr/lib/debug/lib/libc-2.11.2.so ..
--30287-- .. CRC is valid
--30287-- REDIR: 0x5128600 (__GI_strrchr) redirected to 0x4c25280 (__GI_strrchr)
--30287-- REDIR: 0x51218c0 (malloc) redirected to 0x4c24466 (malloc)
--30287-- REDIR: 0x5128d00 (memchr) redirected to 0x4c25ed0 (memchr)
--30287-- REDIR: 0x512a750 (memcpy) redirected to 0x4c25f00 (memcpy)
--30287-- REDIR: 0x5126b10 (strlen) redirected to 0x4a205ac (_vgnU_ifunc_wrapper)
==30287== WARNING: new redirection conflicts with existing -- ignoring it
--30287-- new: 0x05126b40 (__GI_strlen ) R-> 0x04c257f0 strlen
--30287-- REDIR: 0x5126b40 (__GI_strlen) redirected to 0x4c25810 (__GI_strlen)
--30287-- REDIR: 0x512baf0 (__GI___rawmemchr) redirected to 0x4c26ba0 (__GI___rawmemchr)
--30287-- REDIR: 0x51217e0 (free) redirected to 0x4c24076 (free)
Following are the keys and their corresponding value present
--30287-- REDIR: 0x512bb40 (strchrnul) redirected to 0x4c26b50 (strchrnul)
答案 0 :(得分:3)
您可以在/usr/lib/valgrind/default.supp
。
答案 1 :(得分:2)
被抑制的错误只是系统特定的错误,您的库已知问题。因此,他们不是到另一个系统的可移植性问题的正确嫌疑人。
答案 2 :(得分:2)
在x86主机上,valgrind输出这样的行:
For counts of detected and suppressed errors, rerun with: -v
所以像这样运行你的编程:valgrind -v ./myprog
。