diff options
| -rw-r--r-- | dlfcn/Makefile | 20 | ||||
| -rw-r--r-- | dlfcn/bug-dlsym1-lib1.c | 9 | ||||
| -rw-r--r-- | dlfcn/bug-dlsym1-lib2.c | 3 | ||||
| -rw-r--r-- | dlfcn/bug-dlsym1.c | 30 |
4 files changed, 59 insertions, 3 deletions
diff --git a/dlfcn/Makefile b/dlfcn/Makefile index 9faee3e..33f6e92 100644 --- a/dlfcn/Makefile +++ b/dlfcn/Makefile @@ -22,7 +22,8 @@ extra-libs := libdl libdl-routines := dlopen dlclose dlsym dlvsym dlerror dladdr eval distribute := dlopenold.c glreflib1.c glreflib2.c failtestmod.c eval.c \ defaultmod1.c defaultmod2.c errmsg1mod.c modatexit.c \ - modcxaatexit.c modstatic.c + modcxaatexit.c modstatic.c \ + bug-dlsym1-lib1.c bug-dlsym1-lib2.c extra-libs-others := libdl @@ -35,13 +36,15 @@ endif libdl-shared-only-routines += eval ifeq (yes,$(build-shared)) -tests = glrefmain failtest tst-dladdr default errmsg1 tstcxaatexit bug-dlopen1 +tests = glrefmain failtest tst-dladdr default errmsg1 tstcxaatexit \ + bug-dlopen1 bug-dlsym1 ifeq (yes,$(have-protected)) tests += tstatexit endif endif modules-names = glreflib1 glreflib2 failtestmod defaultmod1 defaultmod2 \ - errmsg1mod modatexit modcxaatexit + errmsg1mod modatexit modcxaatexit \ + bug-dlsym1-lib1 bug-dlsym1-lib2 ifeq (yesyesyes,$(build-static)$(build-shared)$(elf)) tests += tststatic @@ -96,6 +99,17 @@ $(objpfx)modstatic.so: $(common-objpfx)libc.so $(common-objpfx)libc_nonshared.a $(objpfx)bug-dlopen1: $(libdl) +$(objpfx)bug-dlsym1: $(libdl) $(objpfx)bug-dlsym1-lib2.so +$(objpfx)bug-dlsym1.out: $(objpfx)bug-dlsym1-lib1.so \ + $(objpfx)bug-dlsym1-lib2.so +$(objpfx)bug-dlsym1-lib1.so: $(objpfx)bug-dlsym1-lib2.so \ + $(common-objpfx)libc.so \ + $(common-objpfx)libc_nonshared.a +$(objpfx)bug-dlsym1-lib2.so: $(common-objpfx)libc.so \ + $(common-objpfx)libc_nonshared.a + + + # Depend on libc.so so a DT_NEEDED is generated in the shared objects. # This ensures they will load libc.so for needed symbols if loaded by # a statically-linked program that hasn't already loaded it. diff --git a/dlfcn/bug-dlsym1-lib1.c b/dlfcn/bug-dlsym1-lib1.c new file mode 100644 index 0000000..5435b1f --- /dev/null +++ b/dlfcn/bug-dlsym1-lib1.c @@ -0,0 +1,9 @@ +/* Test module for bug-dlsym1.c test case. */ + +extern int dlopen_test_variable; + +/* here to get the unresolved symbol in our .so */ +char foo() +{ + return dlopen_test_variable; +} diff --git a/dlfcn/bug-dlsym1-lib2.c b/dlfcn/bug-dlsym1-lib2.c new file mode 100644 index 0000000..4466cbd --- /dev/null +++ b/dlfcn/bug-dlsym1-lib2.c @@ -0,0 +1,3 @@ +/* Test module for bug-dlsym1.c test case. */ + +char dlopen_test_variable; diff --git a/dlfcn/bug-dlsym1.c b/dlfcn/bug-dlsym1.c new file mode 100644 index 0000000..61c6cda --- /dev/null +++ b/dlfcn/bug-dlsym1.c @@ -0,0 +1,30 @@ +/* Test case for bug in dlsym accessing dependency objects' symbols. */ + +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> +#include <dlfcn.h> + +int main(void) +{ + void *handle; + char *c; + + setenv ("LD_LIBRARY_PATH", "/home/roland/build/tls-libc/dlfcn", 1); + + /* open lib1.so, which has the unresolved test symbol and a DT_NEEDED + on lib2.so, which provides the symbol */ + if ((handle = dlopen("bug-dlsym1-lib1.so", RTLD_NOW)) == NULL) { + printf("dlopen(\"bug-dlsym1-lib1.so\"): %s\n", dlerror()); + abort(); + } + + if ((c = dlsym(handle, "dlopen_test_variable")) == NULL) { + printf("dlsym(handle, \"dlopen_test_variable\"): %s\n", dlerror()); + abort(); + } + + (void) dlclose(handle); + + return 0; +} |