Linux下获取调用堆栈地址

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

void get_stack_info(char *buf, int len)
{
#define MAX_BACK_TRACE_DEPTH 100
#define MAX_STACK_SIZE       64
if (buf == NULL || len <= 0)
{
return;
}

void *array[MAX_BACK_TRACE_DEPTH];
size_t size;
char **strings;
char *p = buf;
size_t i;
int n;

size = backtrace(array, MAX_BACK_TRACE_DEPTH);
strings = backtrace_symbols(array, size);

n = snprintf(p, len, "********************************************\r\n");
p += n;
len -= n;

n = snprintf(p, len, "Call stack:\r\n");
p += n;
len = len - n;

for (i = 0; i < size; ++i)
{
if (len < 0)
{
break;
}

char *pl = strstr(strings[i], "[");
char *pr = strstr(strings[i], "]");
char addr[MAX_STACK_SIZE];
memset(addr, '\0', sizeof(addr));
strncpy(addr, pl + 1, pr - pl - 1);
n = snprintf(p , len , "  ip[%02d]    : %s\r\n", (int)i, addr);
p += n;
len -= n;
}

n = snprintf(p, len, "*******************************************\r\n");
p += n;
len -= n;

free(strings);
}

int demo()
{
char buf[2048];
memset(buf, 0, sizeof(buf));
get_stack_info(buf, sizeof(buf) - 1);
printf("%s\r\n", buf);
}

int main(int argc, char **argv)
{
demo();

return 0;
}