参考自：

 

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

 

#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 
     
      #include 
      
       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)intmain(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：