私は valgrind の使い方の初心者です。vmWare の一部として ubuntu を開き、valgrind エラーを表示する ac プログラムを作成し、a.out で valgrind を実行しましたが、行が表示されません。出力に表示される数字: 使用されるコマンドは次のとおりです。
valgrind --leak-check=full --track-origins=yes ./a.out
以下に示すように、Cプログラムの場合:
#include <stdlib.h>
#define ARRAY_SIZE (5)
typedef char TEST_TYPE;
void invalid_write(TEST_TYPE* array, int size)
{
array[size] = 5;
}
int main(void)
{
TEST_TYPE static_array[ARRAY_SIZE];
TEST_TYPE* dynamic_array = NULL;
TEST_TYPE* p = NULL;
TEST_TYPE i;
dynamic_array = (TEST_TYPE*)malloc(ARRAY_SIZE * sizeof(TEST_TYPE));
/* ERROR 1 : Writing out of array boundaries (heap overrun) */
invalid_write(dynamic_array, ARRAY_SIZE);
}
出力は次のとおりです。
==6801== Memcheck, a memory error detector
==6801== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
==6801== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
==6801== Command: ./a.out
==6801==
==6801== Invalid write of size 1
==6801== at 0x80483ED: invalid_write (in /home/jci/a.out)
==6801== by 0x804842E: main (in /home/jci/a.out)
==6801== Address 0x419702d is 0 bytes after a block of size 5 alloc'd
==6801== at 0x4026444: malloc (vg_replace_malloc.c:263)
==6801== by 0x8048416: main (in /home/jci/a.out)
==6801==
==6801==
==6801== HEAP SUMMARY:
==6801== in use at exit: 5 bytes in 1 blocks
==6801== total heap usage: 1 allocs, 0 frees, 5 bytes allocated
==6801==
==6801== 5 bytes in 1 blocks are definitely lost in loss record 1 of 1
==6801== at 0x4026444: malloc (vg_replace_malloc.c:263)
==6801== by 0x8048416: main (in /home/jci/a.out)
==6801==
==6801== LEAK SUMMARY:
==6801== definitely lost: 5 bytes in 1 blocks
==6801== indirectly lost: 0 bytes in 0 blocks
==6801== possibly lost: 0 bytes in 0 blocks
==6801== still reachable: 0 bytes in 0 blocks
==6801== suppressed: 0 bytes in 0 blocks
==6801==
==6801== For counts of detected and suppressed errors, rerun with: -v
==6801== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 11 from 6)
問題を正確に特定できるように、これらのエラーの行番号を取得するにはどうすればよいですか? 現在使用されている valgrind のバージョンは 3.7.0 です。