diff options
Diffstat (limited to 'test/ldso')
| -rw-r--r-- | test/ldso/.cvsignore | 5 | ||||
| -rw-r--r-- | test/ldso/Makefile | 48 | ||||
| -rw-r--r-- | test/ldso/dltest.c | 42 | ||||
| -rw-r--r-- | test/ldso/howdy.c | 24 | ||||
| -rw-r--r-- | test/ldso/libtest.c | 16 |
5 files changed, 57 insertions, 78 deletions
diff --git a/test/ldso/.cvsignore b/test/ldso/.cvsignore index aac695f97..7232c47f9 100644 --- a/test/ldso/.cvsignore +++ b/test/ldso/.cvsignore @@ -1,5 +1,4 @@ dltest -libhowdy.so dltest2 -dlttest -dlttest2 +libtest.so +libtest2.so diff --git a/test/ldso/Makefile b/test/ldso/Makefile index 1414a34e8..bfd8444c7 100644 --- a/test/ldso/Makefile +++ b/test/ldso/Makefile @@ -1,6 +1,6 @@ # Makefile for uClibc # -# Copyright (C) 2000,2001 Erik Andersen <andersen@uclibc.org> +# Copyright (C) 2000-2003 Erik Andersen <andersen@uclibc.org> # # This program is free software; you can redistribute it and/or modify it under # the terms of the GNU Library General Public License as published by the Free @@ -19,44 +19,26 @@ TESTDIR=../ include $(TESTDIR)/Rules.mak -all: dltest2 dltest libhowdy.so run -all: dlttest dlttest2 dltest2 dltest libhowdy.so run +all: run -dlttest.o: dlttest.c - $(CC) $(CFLAGS) -c dlttest.c -o dlttest.o -dlttest2.o: dlttest.c - $(CC) $(CFLAGS) -DFORCE -c dlttest.c -o dlttest2.o +dltest: dltest.c + $(CC) $(CFLAGS) -DLIBNAME="\"./libtest.so\"" dltest.c -ldl -lpthread -o dltest -dltest2: dltest2.c - $(CC) $(CFLAGS) dltest2.c -o dltest2 -ldl - ./dltest2 - -dltest.o: dltest.c - $(CC) $(CFLAGS) -c dltest.c -o dltest.o - -howdy.o: howdy.c - $(CC) $(CFLAGS) -fPIC -c howdy.c -o howdy.o - -libhowdy.so: howdy.o - $(CC) $(CFLAGS) -shared -o libhowdy.so -Wl,-soname,libhowdy.so howdy.o +libtest.so: libtest.c + $(CC) $(CFLAGS) -fPIC -shared -Wl,-soname,libtest.so libtest.c -o libtest.so -dltest: dltest.o - $(CC) $(CFLAGS) -o dltest dltest.o -ldl +# Second time, directly link libtest2.so with libpthread +dltest2: dltest.c + $(CC) $(CFLAGS) -DLIBNAME="\"./libtest2.so\"" dltest.c -ldl -lpthread -o dltest2 -dlttest: dlttest.o - $(CC) $(CFLAGS) -o dlttest dlttest.o -ldl -lpthread +libtest2.so: libtest.c + $(CC) $(CFLAGS) -fPIC -shared -Wl,-soname,libtest2.so libtest.c -o libtest2.so -lpthread -dlttest2: dlttest2.o - $(CC) $(CFLAGS) -o dlttest2 dlttest2.o -ldl -lpthread - -run: dltest dlttest dlttest2 libhowdy.so - @echo Running dltest +run: dltest libtest.so dltest2 libtest2.so + ./dltest2 ./dltest - @echo Running dlttest - ./dlttest - @echo Running dlttest2 - ./dlttest2 clean: - rm -f *.o *.so dltest2 dltest core libhowdy.so dlttest dlttest2 + rm -f *.o dltest dltest2 libtest.so libtest2.so + 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 <stdlib.h> #include <stdio.h> #include <dlfcn.h> - -extern void _dlinfo(); - -int main(int argc, char **argv) { - void *handle; - int (*myhowdy)(const char *s); - char *error; +#include <stdint.h> #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; } + diff --git a/test/ldso/howdy.c b/test/ldso/howdy.c deleted file mode 100644 index e2724068e..000000000 --- a/test/ldso/howdy.c +++ /dev/null @@ -1,24 +0,0 @@ -#include <pthread.h> -#include <stdio.h> - -extern int __pthread_return_0 (void); - -int howdy(const char *s) -{ - return printf("howdy: __pthread_return_0 = %p\n" - "howdy: pthread_cond_signal = %p\n", - __pthread_return_0, pthread_cond_signal); -} - -void __attribute__((constructor)) howdy_ctor(void) -{ - printf("I am the libhowdy constructor!\n"); -} - -void __attribute__((destructor)) howdy_dtor(void) -{ - printf("I am the libhowdy destructor!\n"); -} - - - diff --git a/test/ldso/libtest.c b/test/ldso/libtest.c new file mode 100644 index 000000000..cdb37403d --- /dev/null +++ b/test/ldso/libtest.c @@ -0,0 +1,16 @@ +#include <stdio.h> +#include <pthread.h> +#include <stdint.h> + +extern int __pthread_return_0(void); + +void dltest(uint32_t **value1, uint32_t **value2) +{ + *value1 = (uint32_t *) __pthread_return_0; + *value2 = (uint32_t *) pthread_self; +#if 0 + printf("dltest: __pthread_return_0=%p\n", __pthread_return_0); + printf("dltest: pthread_self=%p\n", pthread_self); +#endif +} + |