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glibc/elf/tst-tls14.c
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/* 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" |