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authorRoland McGrath <roland@gnu.org>2002-08-21 23:03:46 +0000
committerRoland McGrath <roland@gnu.org>2002-08-21 23:03:46 +0000
commitc3fd12a2392d4b475566a483af3b8f230d5d0e10 (patch)
treeff880d159f5dbcb94b264e4e5dd3c99a657187ff /dlfcn
parent01d8e36dd98d64d4d2b91bd01f83935ae6a21370 (diff)
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2002-08-21 Roland McGrath <roland@redhat.com>
* dlfcn/bug-dlsym1.c: New file. * dlfcn/bug-dlsym1-lib1.c, dlfcn/bug-dlsym1-lib2.c: New files. * dlfcn/Makefile (distribute): Add them. (tests): Add bug-dlsym1 here. (modules-names): Add bug-dlsym1-lib1 and bug-dlsym1-lib2 here. ($(objpfx)bug-dlsym1, $(objpfx)bug-dlsym1.out): New targets. ($(objpfx)bug-dlsym1-lib1.so, $(objpfx)bug-dlsym1-lib2.so): Likewise.
Diffstat (limited to 'dlfcn')
-rw-r--r--dlfcn/Makefile20
-rw-r--r--dlfcn/bug-dlsym1-lib1.c9
-rw-r--r--dlfcn/bug-dlsym1-lib2.c3
-rw-r--r--dlfcn/bug-dlsym1.c30
4 files changed, 59 insertions, 3 deletions
diff --git a/dlfcn/Makefile b/dlfcn/Makefile
index 9faee3e..33f6e92 100644
--- a/dlfcn/Makefile
+++ b/dlfcn/Makefile
@@ -22,7 +22,8 @@ extra-libs := libdl
libdl-routines := dlopen dlclose dlsym dlvsym dlerror dladdr eval
distribute := dlopenold.c glreflib1.c glreflib2.c failtestmod.c eval.c \
defaultmod1.c defaultmod2.c errmsg1mod.c modatexit.c \
- modcxaatexit.c modstatic.c
+ modcxaatexit.c modstatic.c \
+ bug-dlsym1-lib1.c bug-dlsym1-lib2.c
extra-libs-others := libdl
@@ -35,13 +36,15 @@ endif
libdl-shared-only-routines += eval
ifeq (yes,$(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;
+}