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/* { dg-do run { target {{ i?86-*-* x86_64-*-* } && lp64 } } } */
/* { dg-options "-O2 -fno-omit-frame-pointer -fshrink-wrap-frame-pointer" } */
/* { dg-output "stack_depth = 8" } */
#include <stdio.h>
void* address[1000];
int sizes[1000];
int N;
int main();
void *main_ret_address;
__attribute((noinline)) int
get_stack_traces (void **result)
{
void **sp = (void**) __builtin_frame_address (0);
int n = 0;
while (sp) {
if ((*(char **)(sp+1)) == main_ret_address)
return n;
void **next_sp = (void**) *sp;
result[n] = *(sp+1);
if (next_sp > sp)
sizes[n] = (char*)next_sp - (char*)sp;
else
sizes[n] = 0;
sp = next_sp;
n++;
}
return n;
}
__attribute__((noinline)) int bar(int level)
{
int a[100];
int i;
if (level == 0)
{
N = get_stack_traces (address);
return 0;
}
for (i = 0; i < 100; i++)
a[i] = i + 10;
return bar (level - 1) + a[0] + a[99];
}
__attribute__((noinline)) int foo()
{
int a[100];
int i;
for (i = 0; i < 100; i++)
a[i] = i + 10;
return bar (5) + a[0] + a[99];
}
int main()
{
int i, n;
main_ret_address = __builtin_return_address (0);
n = foo();
fprintf (stderr, "return value = %d, stack_depth = %d\n", n, N);
for (i = 0; i < N; i++)
{
fprintf (stderr, "Frame[%d]: addr = %p, stack_size = %d\n", i,
address[i], sizes[i]);
}
return 0;
}
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