#include <execinfo.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
void
myfunc3(void)
{
int j, nptrs;
#define SIZE 100
void *buffer[100];
char **strings;
nptrs = backtrace(buffer, SIZE);
printf("backtrace() returned %d addresses\n", nptrs);
/* The call backtrace_symbols_fd(buffer, nptrs, STDOUT_FILENO)
would produce similar output to the following: */
strings = backtrace_symbols(buffer, nptrs);
if (strings == NULL) {
perror("backtrace_symbols");
exit(EXIT_FAILURE);
}
for (j = 0; j < nptrs; j++)
printf("%s\n", strings[j]);
free(strings);
}
static void /* "static" means don't export the symbol... */
myfunc2(void)
{
myfunc3();
}
void
myfunc(int ncalls)
{
if (ncalls > 1)
myfunc(ncalls - 1);
else
myfunc2();
}
int
main(int argc, char *argv[])
{
if (argc != 2) {
fprintf(stderr, "%s num-calls\n", argv[0]);
exit(EXIT_FAILURE);
}
myfunc(atoi(argv[1]));
exit(EXIT_SUCCESS);
}编译指令:
arm-linux-gcc -o test test.c -g
执行:
$ ./test 10
backtrace() returned 15 addresses
./test() [0x4007d0]
./test() [0x40088d]
./test() [0x4008b4]
./test() [0x4008ad]
./test() [0x4008ad]
./test() [0x4008ad]
./test() [0x4008ad]
./test() [0x4008ad]
./test() [0x4008ad]
./test() [0x4008ad]
./test() [0x4008ad]
./test() [0x4008ad]
./test() [0x40090f]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7feddd188f45]
./test() [0x4006f9]
$ addr2line -e test 0x40088d
/home/hexing/build-test2-Qt5-Debug/test.c:37
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https://github.com/JasonOldWoo/arm-backtrace
贴上一段以前写的不依赖工具链和第三方工具arm下的backtrace实现。
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递归调用，现场程序不会写成这样啊
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