/* Check alignment of TLS variable. */ #include <dlfcn.h> #include <stdint.h> #include <stdio.h> #include <stdlib.h> #include <tls.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"