llvm-project/compiler-rt/test/msan/backtrace.cc

27 lines
509 B
C++

// RUN: %clangxx_msan -O0 %s -o %t && %run %t
#include <assert.h>
#include <execinfo.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
__attribute__((noinline))
void f() {
void *buf[10];
int sz = backtrace(buf, sizeof(buf) / sizeof(*buf));
assert(sz > 0);
for (int i = 0; i < sz; ++i)
if (!buf[i])
exit(1);
char **s = backtrace_symbols(buf, sz);
assert(s != 0);
for (int i = 0; i < sz; ++i)
printf("%d\n", (int)strlen(s[i]));
}
int main(void) {
f();
return 0;
}