在 Mac 10.6 上以 32 位模式运行 valgrind？答案

【问题标题】：Run valgrind in 32 bit mode on Mac 10.6?在 Mac 10.6 上以 32 位模式运行 valgrind？
【发布时间】：2011-08-30 06:45:29
【问题描述】：

如果我在 Mac 10.6 中编译一个带有 -m32 标志的 32 位可执行文件，例如：

gcc -m32 test.c -o 测试

在“test”上运行 valgrind 失败并出现错误：

valgrind: ./test: 无法执行二进制文件

是否有任何标志可以传递给 valgrind 来执行此操作？在 32 位模式下编译 valgrind 是唯一的选择吗？

谢谢

【问题讨论】：

尝试完全删除 -m32 标志。该错误意味着二进制文件不适用于您的架构（64 位）。

标签： 32-bit valgrind

【解决方案1】：

Blender，-m32 标志只是意味着以 32 位模式编译文件。 Mac 10.6 可以正常运行 32 位可执行文件。

【讨论】：

请用 cmets 回答其他 cmets。答案是对您问题的真实答案。
是的，但是在 Blender 的评论或您的第一条评论下看不到 cmets 按钮。不过，这是在此评论下。错误？

【解决方案2】：

我也有这个问题，由 MacPorts 构建/安装的 valgrind。然而，当我自己构建它时，问题就消失了。我可以确认没有额外配置选项的 valgrind 默认构建支持 Snow Leopard 上的 32 位和 64 位程序（使用版本 3.6.1。）

【讨论】：

【解决方案3】：

您在使用哪个版本的 Valgrind 时遇到问题？

在 Linux 和 MacOS 上，单个版本的 Valgrind 可以自动检测 32 位和 64 位二进制文件并执行正确的操作。

这是我在Mac OS X 10.6.7 (10J869)看到的：

$ echo "int main() { free(1); return 0; }" | gcc -xc - -g -o a.out
$ echo "int main() { free(1); return 0; }" | gcc -xc - -g -o a.out32 -m32
$ valgrind --version
valgrind-3.7.0.SVN

$ valgrind ./a.out
==46102== Memcheck, a memory error detector
==46102== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al.
==46102== Using Valgrind-3.7.0.SVN and LibVEX; rerun with -h for copyright info
==46102== Command: ./a.out
==46102== 
--46102-- ./a.out:
--46102-- dSYM directory is missing; consider using --dsymutil=yes
==46102== Invalid free() / delete / delete[] / realloc()
==46102==    at 0x100010E9F: free (vg_replace_malloc.c:366)
==46102==    by 0x100000F26: main (in ./a.out)
==46102==  Address 0x1 is not stack'd, malloc'd or (recently) free'd
==46102== 
==46102== 
==46102== HEAP SUMMARY:
==46102==     in use at exit: 88 bytes in 1 blocks
==46102==   total heap usage: 1 allocs, 1 frees, 88 bytes allocated
==46102== 
==46102== LEAK SUMMARY:
==46102==    definitely lost: 0 bytes in 0 blocks
==46102==    indirectly lost: 0 bytes in 0 blocks
==46102==      possibly lost: 0 bytes in 0 blocks
==46102==    still reachable: 0 bytes in 0 blocks
==46102==         suppressed: 88 bytes in 1 blocks
==46102== 
==46102== For counts of detected and suppressed errors, rerun with: -v
==46102== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)

$ valgrind ./a.out32
==46103== Memcheck, a memory error detector
==46103== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al.
==46103== Using Valgrind-3.7.0.SVN and LibVEX; rerun with -h for copyright info
==46103== Command: ./a.out32
==46103== 
--46103-- ./a.out32:
--46103-- dSYM directory is missing; consider using --dsymutil=yes
==46103== Invalid free() / delete / delete[] / realloc()
==46103==    at 0xF7D8: free (vg_replace_malloc.c:366)
==46103==    by 0x1F7B: main (in ./a.out32)
==46103==  Address 0x1 is not stack'd, malloc'd or (recently) free'd
==46103== 
==46103== 
==46103== HEAP SUMMARY:
==46103==     in use at exit: 320 bytes in 7 blocks
==46103==   total heap usage: 7 allocs, 1 frees, 320 bytes allocated
==46103== 
==46103== LEAK SUMMARY:
==46103==    definitely lost: 0 bytes in 0 blocks
==46103==    indirectly lost: 0 bytes in 0 blocks
==46103==      possibly lost: 0 bytes in 0 blocks
==46103==    still reachable: 260 bytes in 6 blocks
==46103==         suppressed: 60 bytes in 1 blocks
==46103== Rerun with --leak-check=full to see details of leaked memory
==46103== 
==46103== For counts of detected and suppressed errors, rerun with: -v
==46103== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)

【讨论】：