From 9efccabb26eed2b4b4ccb4a89561e1212b81d649 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Mon, 1 Sep 2003 20:42:39 +0000 Subject: A better test for a dlopen problem with weak symbols, based on a much improve test by mjn3. --- test/ldso/dltest.c | 42 ++++++++++++++++++++++++------------------ 1 file changed, 24 insertions(+), 18 deletions(-) (limited to 'test/ldso/dltest.c') diff --git a/test/ldso/dltest.c b/test/ldso/dltest.c index 676e1ae55..244f3b76b 100644 --- a/test/ldso/dltest.c +++ b/test/ldso/dltest.c @@ -2,38 +2,44 @@ #include #include #include - -extern void _dlinfo(); - -int main(int argc, char **argv) { - void *handle; - int (*myhowdy)(const char *s); - char *error; +#include #ifdef __UCLIBC__ - _dlinfo(); /* not supported by ld.so.2 */ +extern void _dlinfo(void); #endif - handle = dlopen ("./libhowdy.so", RTLD_LAZY); +int main(int argc, char **argv) +{ + int ret = EXIT_SUCCESS; + void *handle; + void (*mydltest)(void *value1, void *value2); + char *error; + uint32_t *value1, *value2; + handle = dlopen (LIBNAME, RTLD_LAZY); if (!handle) { - fputs (dlerror(), stderr); + fprintf(stderr, "Could not open ./libtest.so: %s\n", dlerror()); exit(1); } - myhowdy = dlsym(handle, "howdy"); + mydltest = dlsym(handle, "dltest"); if ((error = dlerror()) != NULL) { - fputs(error, stderr); + fprintf(stderr, "Could not locate symbol 'dltest': %s\n", error); exit(1); } - myhowdy("hello world!\n"); - -#ifdef __UCLIBC__ - _dlinfo(); /* not supported by ld.so.2 */ -#endif + mydltest(&value1, &value2); + printf("dltest: __pthread_return_0=%p\n", value1); + printf("dltest: pthread_self=%p\n", value2); + if (value1 == value2) { + ret = EXIT_FAILURE; + printf("dltest: values should NOT be equal Weak values resolved incorrectly!\n"); + } else { + printf("dltest: weak symbols resoved correctly.\n"); + } dlclose(handle); - return EXIT_SUCCESS; + return ret; } + -- cgit v1.2.3