mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-09 23:00:07 +00:00
56 lines
979 B
C
56 lines
979 B
C
/* Check alignment of TLS variable. */
|
|
#include <dlfcn.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#define AL 4096
|
|
struct foo
|
|
{
|
|
int i;
|
|
} __attribute ((aligned (AL)));
|
|
|
|
static __thread struct foo f;
|
|
static struct foo g;
|
|
|
|
|
|
extern int in_dso1 (void);
|
|
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
int result = 0;
|
|
|
|
int fail = (((uintptr_t) &f) & (AL - 1)) != 0;
|
|
printf ("&f = %p %s\n", &f, fail ? "FAIL" : "OK");
|
|
result |= fail;
|
|
|
|
fail = (((uintptr_t) &g) & (AL - 1)) != 0;
|
|
printf ("&g = %p %s\n", &g, fail ? "FAIL" : "OK");
|
|
result |= fail;
|
|
|
|
result |= in_dso1 ();
|
|
|
|
void *h = dlopen ("tst-tlsmod14b.so", RTLD_LAZY);
|
|
if (h == NULL)
|
|
{
|
|
printf ("cannot open tst-tlsmod14b.so: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
int (*fp) (void) = (int (*) (void)) dlsym (h, "in_dso2");
|
|
if (fp == NULL)
|
|
{
|
|
puts ("cannot find in_dso2");
|
|
exit (1);
|
|
}
|
|
|
|
result |= fp ();
|
|
|
|
return result;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|