Valgrind memcheck 不显示源文件

Question

我正在调查在具有 ARM CPU 的嵌入式 Linux 系统 (Yocto 1.5) 上运行的 C++ 应用程序中的内存泄漏问题。

Valgrind 3.8.1 已安装在目标上。

C++ 程序是使用带有 -g 和 -Og 的 gcc 4.8 编译的，并且没有被剥离。

我使用以下命令启动了 valgrind：

$ valgrind --tool=memcheck --leak-check=full /tmp/e3event-daemon -c /etc/e3event-daemon/config.json

valgrind 的输出：

==7035== Memcheck, a memory error detector
==7035== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al.
==7035== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info
==7035== Command: /tmp/e3event-daemon -c /etc/e3event-daemon/config.json
==7035== 
==7035== 
==7035== HEAP SUMMARY:
==7035==     in use at exit: 4 bytes in 1 blocks
==7035==   total heap usage: 421 allocs, 420 frees, 148,246 bytes allocated
==7035== 
==7035== 4 bytes in 1 blocks are definitely lost in loss record 1 of 1
==7035==    at 0x4834558: operator new(unsigned int) (in /usr/lib/valgrind/vgpreload_memcheck-arm-linux.so)
==7035== 
==7035== LEAK SUMMARY:
==7035==    definitely lost: 4 bytes in 1 blocks
==7035==    indirectly lost: 0 bytes in 0 blocks
==7035==      possibly lost: 0 bytes in 0 blocks
==7035==    still reachable: 0 bytes in 0 blocks
==7035==         suppressed: 0 bytes in 0 blocks
==7035== 
==7035== For counts of detected and suppressed errors, rerun with: -v
==7035== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)

报告内存泄漏，但

by 0x8048691: main (in ... 行丢失。如果我在我的 Ubuntu Linux 机器 (valgrind 3.10.1) 上运行相同的程序，我会得到这一行，表明问题出在哪里.

我应该怎么做才能得到这个

by 0x8048691: main (in ... 打印出来？

Answer 1

检查您的 vgpreload_memcheck-arm-linux.so 是否已从其调试信息中删除。