定位错误：glibc detected :double free or corruption (!prev): 0x08a03b88

参考自：

http://topic.csdn.net/u/20090812/15/43cae1c5-938d-4dac-a5f2-192f262d30f5.html

定位free/malloc的位置和参数，可以在对应的.cpp/.h文件中添加：

C代码







#include <stdio.h>

#include <stdlib.h>

void *

debug_malloc(size_t size, const char *file, int line, const char *func)

{

void *p;

p = malloc(size);

printf("%s:%d:%s:malloc(%ld): p=0x%lx\n",

file, line, func, size, (unsigned long)p);

return p;

}

#define malloc(s) debug_malloc(s, __FILE__, __LINE__, __func__)

#define free(p) do { \

printf("%s:%d:%s:free(0x%lx)\n", __FILE__, __LINE__, \

__func__, (unsigned long)p); \

free(p); \

} while (0)

int

main(int argc, char *argv[])

{

char *p;

p = malloc(1024);

free(p);

return 0;

}

#include <stdio.h>
#include <stdlib.h>

void *
debug_malloc(size_t size, const char *file, int line, const char *func)
{
void *p;

p = malloc(size);
printf("%s:%d:%s:malloc(%ld): p=0x%lx\n",
file, line, func, size, (unsigned long)p);
return p;
}

#define malloc(s) debug_malloc(s, __FILE__, __LINE__, __func__)
#define free(p)  do {                                                   \
printf("%s:%d:%s:free(0x%lx)\n", __FILE__, __LINE__,            \
__func__, (unsigned long)p);                                \
free(p);                                                        \
} while (0)

int
main(int argc, char *argv[])
{
char *p;
p = malloc(1024);
free(p);
return 0;
}

延伸一下，如果想在不改动原来代码的情况下跳过这个错误，则可以将上述代码再重新改写一下：

#define malloc(s) debug_malloc(s, __FILE__, __LINE__, __func__)
#define free(p) do { \
printf("%s:%d:%s:free(0x%lx)\n", __FILE__, __LINE__, \
__func__, (unsigned long)p); \

if (p) { \
free(p); \

p = NULL; \

} \
} while (0)

转自：http://socol.iteye.com/blog/695872