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-rw-r--r--test/dlopen/Makefile40
-rw-r--r--test/dlopen/Makefile.in82
-rw-r--r--test/dlopen/dltest.c2
-rw-r--r--test/dlopen/libA.c7
-rw-r--r--test/dlopen/libB.c7
-rw-r--r--test/dlopen/libC.c30
-rw-r--r--test/dlopen/libtest.c4
-rw-r--r--test/dlopen/nodelete.c205
-rw-r--r--test/dlopen/nodelmod1.c10
-rw-r--r--test/dlopen/nodelmod2.c10
-rw-r--r--test/dlopen/nodelmod3.c8
-rw-r--r--test/dlopen/nodelmod4.c10
-rw-r--r--test/dlopen/testscope.c29
-rw-r--r--test/dlopen/tst-origin.c37
14 files changed, 441 insertions, 40 deletions
diff --git a/test/dlopen/Makefile b/test/dlopen/Makefile
index b59c3e2d2..d5be53c6a 100644
--- a/test/dlopen/Makefile
+++ b/test/dlopen/Makefile
@@ -1,40 +1,8 @@
# uClibc dlopen tests
# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
-# rules need a little love to work with glibc ...
-export UCLIBC_ONLY := 1
-
-TESTS := dltest dltest2 dlstatic test1 test2 test3 dlundef dlafk dladdr
-
+top_builddir=../../
+top_srcdir=../../
+include ../Rules.mak
+-include Makefile.in
include ../Test.mak
-
-CFLAGS_dltest := -DLIBNAME="\"./libtest.so\""
-CFLAGS_dltest2 := -DLIBNAME="\"./libtest3.so\""
-
-LDFLAGS_dlstatic := -ldl
-LDFLAGS_dltest := -ldl -lpthread
-LDFLAGS_dltest2 := -ldl -lpthread
-LDFLAGS_dlundef := -ldl
-LDFLAGS_dlafk := -ldl ./libafk.so -Wl,-rpath,.
-LDFLAGS_test1 := -ldl
-LDFLAGS_test2 := -ldl
-LDFLAGS_test3 := -ldl ./libtest1.so ./libtest2.so -Wl,-rpath,.
-LDFLAGS_dladdr := -ldl
-
-DEBUG_LIBS := X
-WRAPPER := env $(DEBUG_LIBS)=all LD_LIBRARY_PATH="$$PWD:.:$(LD_LIBRARY_PATH)"
-
-dltest: libtest.so
-dltest2: libtest3.so
-dlstatic: libstatic.so
-dlundef: libundef.so
-dlafk: libafk.so
-libafk.so: libafk-temp.so
-LDFLAGS_libafk.so := ./libafk-temp.so -Wl,-rpath,.
-test1: libtest1.so
-test2: libtest1.so libtest2.so
-test3: libtest1.so libtest2.so
-libtest1.so: libtest2.so
-LDFLAGS_libtest1.so := ./libtest2.so -Wl,-rpath,.
-LDFLAGS_libtest2.so := -Wl,-rpath,.
-LDFLAGS_libtest3.so := -lpthread -Wl,-rpath,.
diff --git a/test/dlopen/Makefile.in b/test/dlopen/Makefile.in
new file mode 100644
index 000000000..0bed0f749
--- /dev/null
+++ b/test/dlopen/Makefile.in
@@ -0,0 +1,82 @@
+# uClibc dlopen tests
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+
+# rules need a little love to work with glibc ...
+export UCLIBC_ONLY := 1
+
+TESTS := dltest dltest2 dlstatic test1 test2 test3 dlundef dlafk dladdr \
+ testscope nodelete tst-origin
+
+ifneq ($(HAVE_SHARED),y)
+TESTS_DISABLED := test3
+LDFLAGS_libtest.so := -lpthread
+endif
+
+CFLAGS_dltest := -DLIBNAME="\"./libtest.so\""
+CFLAGS_dltest2 := -DLIBNAME="\"./libtest3.so\""
+
+LDFLAGS_dlstatic := -ldl
+LDFLAGS_dltest := -ldl
+LDFLAGS_dltest2 := -ldl
+LDFLAGS_dlundef := -ldl
+LDFLAGS_dlafk := -ldl ./libafk.so -Wl,-rpath,.
+LDFLAGS_test1 := -ldl
+LDFLAGS_test2 := -ldl
+LDFLAGS_test3 := -ldl ./libtest1.so ./libtest2.so -Wl,-rpath,.
+LDFLAGS_dladdr := -ldl
+LDFLAGS_testscope:= -ldl
+LDFLAGS_tst-origin:= -ldl -Wl,-rpath,\$$ORIGIN/testlib
+
+DEBUG_LIBS := X
+WRAPPER := env $(DEBUG_LIBS)=all LD_LIBRARY_PATH="$$PWD:.:$(LD_LIBRARY_PATH)"
+
+testlib:
+ @mkdir $@
+
+testlib/libtest31.so: libtest3.so | testlib
+ @cp $^ $@
+
+EXTRA_DIRS := testlib
+
+# Build libC.so without -mprefergot compilation flag to force a
+# R_SH_JMP_SLOT relocation instead of R_SH_GLOB_DAT for _libC_fini. This is
+# needed to resolve the _libC_fini symbol when used (by libC.so destructor),
+# whereas with GLOB_DAT relocation the resolution happens in the GOT entry
+# when the libC is loaded, for the same reason remove also the "-z now"
+# linker flag.
+# These are needed to spot the issue test case want raise.
+
+ifeq ($(TARGET_ARCH),sh)
+CFLAGS-OMIT-libC.c = -mprefergot
+endif
+LDFLAGS-OMIT-libC.c = -Wl,-z,now
+
+dltest: libtest.so
+dltest2: libtest3.so
+dlstatic: libstatic.so
+dlundef: libundef.so
+dlafk: libafk.so
+testscope:libA.so
+libafk.so: libafk-temp.so
+LDFLAGS_libafk.so := ./libafk-temp.so -Wl,-rpath,.
+test1: libtest1.so
+test2: libtest1.so libtest2.so
+test3: libtest1.so libtest2.so
+tst-origin: testlib/libtest31.so
+libtest1.so: libtest2.so
+libB.so: libC.so
+libA.so: libB.so
+LDFLAGS_libtest.so := -lpthread
+LDFLAGS_libtest1.so := ./libtest2.so -Wl,-rpath,.
+LDFLAGS_libtest2.so := -Wl,-rpath,.
+LDFLAGS_libtest3.so := -lpthread -Wl,-rpath,.
+LDFLAGS_libC.so := -ldl
+LDFLAGS_libB.so := ./libC.so -Wl,-rpath,.
+LDFLAGS_libA.so := ./libB.so -Wl,-rpath,.
+
+nodelete: nodelmod1.so nodelmod2.so nodelmod3.so
+nodelmod3.so: nodelmod4.so
+LDFLAGS_nodelete := -rdynamic -ldl
+LDFLAGS_nodelmod1.so := -Wl,-z,nodelete
+LDFLAGS_nodelmod3.so := ./nodelmod4.so
+LDFLAGS_nodelmod4.so := -Wl,-z,nodelete
diff --git a/test/dlopen/dltest.c b/test/dlopen/dltest.c
index 6bec6e00e..b5fa1cdd7 100644
--- a/test/dlopen/dltest.c
+++ b/test/dlopen/dltest.c
@@ -25,7 +25,7 @@ int main(int argc, char **argv)
}
mydltest(&value1, &value2);
- printf("dltest: __pthread_once=%p\n", value1);
+ printf("dltest: pthread_once=%p\n", value1);
printf("dltest: pthread_self=%p\n", value2);
if (value1 == value2) {
ret = EXIT_FAILURE;
diff --git a/test/dlopen/libA.c b/test/dlopen/libA.c
new file mode 100644
index 000000000..13b83dcec
--- /dev/null
+++ b/test/dlopen/libA.c
@@ -0,0 +1,7 @@
+extern void libB_func(void);
+
+void libA_func(void);
+void libA_func(void)
+{
+ libB_func();
+}
diff --git a/test/dlopen/libB.c b/test/dlopen/libB.c
new file mode 100644
index 000000000..9b9fff41c
--- /dev/null
+++ b/test/dlopen/libB.c
@@ -0,0 +1,7 @@
+extern void libC_func(void);
+
+void libB_func(void);
+void libB_func(void)
+{
+ libC_func();
+}
diff --git a/test/dlopen/libC.c b/test/dlopen/libC.c
new file mode 100644
index 000000000..84cbbef3d
--- /dev/null
+++ b/test/dlopen/libC.c
@@ -0,0 +1,30 @@
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define LIBNAME "libB.so"
+void _libC_fini(void);
+void _libC_fini(void)
+{
+ printf("libC_fini():finish - atexit()\n");
+}
+
+void libC_fini(void);
+void libC_fini(void)
+{
+ _libC_fini();
+}
+
+void libC_func(void);
+void libC_func(void)
+{
+ void *libB;
+
+ libB = dlopen(LIBNAME, RTLD_LAZY);
+ if (!libB) {
+ fprintf(stderr, "Could not open ./%s: %s\n", LIBNAME, dlerror());
+ exit(1);
+ }
+
+ atexit(libC_fini);
+}
diff --git a/test/dlopen/libtest.c b/test/dlopen/libtest.c
index a306e4bf7..3fd137f06 100644
--- a/test/dlopen/libtest.c
+++ b/test/dlopen/libtest.c
@@ -2,12 +2,10 @@
#include <pthread.h>
#include <stdint.h>
-extern int __pthread_once(void);
-
void dltest(uint32_t **value1, uint32_t **value2);
void dltest(uint32_t **value1, uint32_t **value2)
{
- *value1 = (uint32_t *) __pthread_once;
+ *value1 = (uint32_t *) pthread_once;
*value2 = (uint32_t *) pthread_self;
}
diff --git a/test/dlopen/nodelete.c b/test/dlopen/nodelete.c
new file mode 100644
index 000000000..07ff96136
--- /dev/null
+++ b/test/dlopen/nodelete.c
@@ -0,0 +1,205 @@
+#include <dlfcn.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+
+static sigjmp_buf jmpbuf;
+
+
+int fini_ran;
+
+
+static void
+__attribute__ ((noreturn))
+handler (int sig)
+{
+ siglongjmp (jmpbuf, 1);
+}
+
+
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+ /* We are testing the two possibilities to mark an object as not deletable:
+ - marked on the linker commandline with `-z nodelete'
+ - with the RTLD_NODELETE flag at dlopen()-time.
+
+ The test we are performing should be safe. We are loading the objects,
+ get the address of variables in the respective object, unload the object
+ and then try to read the variable. If the object is unloaded this
+ should lead to an segmentation fault. */
+ void *p;
+ struct sigaction sa;
+
+ sa.sa_handler = handler;
+ sigfillset (&sa.sa_mask);
+ sa.sa_flags = SA_RESTART;
+
+ if (sigaction (SIGSEGV, &sa, NULL) == -1)
+ puts ("cannot install signal handler: %m");
+
+ p = dlopen ("nodelmod1.so", RTLD_LAZY);
+ if (p == NULL)
+ {
+ printf ("failed to load \"nodelmod1.so\": %s\n", dlerror ());
+ exit (1);
+ }
+ else
+ {
+ int *varp;
+
+ varp = dlsym (p, "var1");
+ if (varp == NULL)
+ {
+ puts ("failed to get address of \"var1\" in \"nodelmod1.so\"");
+ exit (1);
+ }
+ else
+ {
+ *varp = 20000720;
+
+ /* Now close the object. */
+ fini_ran = 0;
+ if (dlclose (p) != 0)
+ {
+ puts ("failed to close \"nodelmod1.so\"");
+ exit (1);
+ }
+ else if (! sigsetjmp (jmpbuf, 1))
+ {
+ /* Access the variable again. */
+ if (*varp != 20000720)
+ {
+ puts ("\"var1\" value not correct");
+ exit (1);
+ }
+ else if (fini_ran != 0)
+ {
+ puts ("destructor of \"nodelmod1.so\" ran");
+ exit (1);
+ }
+ else
+ puts ("-z nodelete test succeeded");
+ }
+ else
+ {
+ /* We caught an segmentation fault. */
+ puts ("\"nodelmod1.so\" got deleted!");
+ exit (1);
+ }
+ }
+ }
+
+ p = dlopen ("nodelmod2.so", RTLD_LAZY | RTLD_NODELETE);
+ if (p == NULL)
+ {
+ printf ("failed to load \"nodelmod2.so\": %s\n", dlerror ());
+ exit (1);
+ }
+ else
+ {
+ int *varp;
+
+ varp = dlsym (p, "var2");
+ if (varp == NULL)
+ {
+ puts ("failed to get address of \"var2\" in \"nodelmod2.so\"");
+ exit (1);
+ }
+ else
+ {
+ *varp = 42;
+
+ /* Now close the object. */
+ fini_ran = 0;
+ if (dlclose (p) != 0)
+ {
+ puts ("failed to close \"nodelmod2.so\"");
+ exit (1);
+ }
+ else if (! sigsetjmp (jmpbuf, 1))
+ {
+ /* Access the variable again. */
+ if (*varp != 42)
+ {
+ puts ("\"var2\" value not correct");
+ exit (1);
+ }
+ else if (fini_ran != 0)
+ {
+ puts ("destructor of \"nodelmod2.so\" ran");
+ exit (1);
+ }
+ else
+ puts ("RTLD_NODELETE test succeeded");
+ }
+ else
+ {
+ /* We caught an segmentation fault. */
+ puts ("\"nodelmod2.so\" got deleted!");
+ exit (1);
+ }
+ }
+ }
+
+ p = dlopen ("nodelmod3.so", RTLD_LAZY);
+ if (p == NULL)
+ {
+ printf ("failed to load \"nodelmod3.so\": %s\n", dlerror ());
+ exit (1);
+ }
+ else
+ {
+ int *(*fctp) (void);
+
+ fctp = dlsym (p, "addr");
+ if (fctp == NULL)
+ {
+ puts ("failed to get address of \"addr\" in \"nodelmod3.so\"");
+ exit (1);
+ }
+ else
+ {
+ int *varp = fctp ();
+
+ *varp = -1;
+
+ /* Now close the object. */
+ fini_ran = 0;
+ if (dlclose (p) != 0)
+ {
+ puts ("failed to close \"nodelmod3.so\"");
+ exit (1);
+ }
+ else if (! sigsetjmp (jmpbuf, 1))
+ {
+ /* Access the variable again. */
+ if (*varp != -1)
+ {
+ puts ("\"var_in_mod4\" value not correct");
+ exit (1);
+ }
+ else if (fini_ran != 0)
+ {
+ puts ("destructor of \"nodelmod4.so\" ran");
+ exit (1);
+ }
+ else
+ puts ("-z nodelete in dependency succeeded");
+ }
+ else
+ {
+ /* We caught an segmentation fault. */
+ puts ("\"nodelmod4.so\" got deleted!");
+ exit (1);
+ }
+ }
+ }
+
+ return 0;
+}
+
+#include "../test-skeleton.c"
diff --git a/test/dlopen/nodelmod1.c b/test/dlopen/nodelmod1.c
new file mode 100644
index 000000000..51be080af
--- /dev/null
+++ b/test/dlopen/nodelmod1.c
@@ -0,0 +1,10 @@
+extern int fini_ran;
+
+int var1 = 42;
+
+static void
+__attribute__ ((__destructor__))
+destr (void)
+{
+ fini_ran = 1;
+}
diff --git a/test/dlopen/nodelmod2.c b/test/dlopen/nodelmod2.c
new file mode 100644
index 000000000..ff2ffc2fc
--- /dev/null
+++ b/test/dlopen/nodelmod2.c
@@ -0,0 +1,10 @@
+extern int fini_ran;
+
+int var2 = 100;
+
+static void
+__attribute__ ((__destructor__))
+destr (void)
+{
+ fini_ran = 1;
+}
diff --git a/test/dlopen/nodelmod3.c b/test/dlopen/nodelmod3.c
new file mode 100644
index 000000000..817c94db6
--- /dev/null
+++ b/test/dlopen/nodelmod3.c
@@ -0,0 +1,8 @@
+extern int var_in_mod4;
+extern int *addr (void);
+
+int *
+addr (void)
+{
+ return &var_in_mod4;
+}
diff --git a/test/dlopen/nodelmod4.c b/test/dlopen/nodelmod4.c
new file mode 100644
index 000000000..d7fa89396
--- /dev/null
+++ b/test/dlopen/nodelmod4.c
@@ -0,0 +1,10 @@
+extern int fini_ran;
+
+int var_in_mod4 = 99;
+
+static void
+__attribute__ ((__destructor__))
+destr (void)
+{
+ fini_ran = 1;
+}
diff --git a/test/dlopen/testscope.c b/test/dlopen/testscope.c
new file mode 100644
index 000000000..90e079885
--- /dev/null
+++ b/test/dlopen/testscope.c
@@ -0,0 +1,29 @@
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define LIBNAME "libA.so"
+int main(int argc, char **argv)
+{
+ void *libA;
+ void (*libAfn)(void);
+ char *error;
+
+ libA = dlopen(LIBNAME, RTLD_LAZY);
+ if (!libA) {
+ fprintf(stderr, "Could not open ./%s: %s\n", LIBNAME, dlerror());
+ exit(1);
+ }
+
+ libAfn = dlsym(libA, "libA_func");
+ if ((error = dlerror()) != NULL) {
+ fprintf(stderr, "Could not locate symbol 'libA_func': %s\n", error);
+ exit(1);
+ }
+
+ libAfn();
+
+ dlclose(libA);
+
+ return EXIT_SUCCESS;
+}
diff --git a/test/dlopen/tst-origin.c b/test/dlopen/tst-origin.c
new file mode 100644
index 000000000..a12be415b
--- /dev/null
+++ b/test/dlopen/tst-origin.c
@@ -0,0 +1,37 @@
+#include <fcntl.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <dlfcn.h>
+
+#ifdef __UCLIBC__
+extern void _dlinfo(void);
+#endif
+
+int main(int argc, char **argv) {
+ void *h1, *h2;
+ int (*mydltest)(const char *s);
+ char *error;
+
+ h1 = dlopen ("libtest31.so", RTLD_LAZY);
+ if (!h1) {
+ fprintf(stderr, "Could not open libtest31.so: %s\n", dlerror());
+ exit(1);
+ }
+
+ h2 = dlopen ("libtest31.so", RTLD_NOLOAD);
+ if (!h2) {
+ fprintf(stderr, "Could not open libtest31.so(RTLD_NOLOAD): %s\n", dlerror());
+ exit(1);
+ }
+
+ mydltest = dlsym(h1, "dltest");
+ if ((error = dlerror()) != NULL) {
+ fprintf(stderr, "Could not locate symbol 'dltest': %s\n", error);
+ exit(1);
+ }
+
+ dlclose(h2);
+ dlclose(h1);
+
+ return EXIT_SUCCESS;
+}
generated by cgit v1.2.3 (git 2.46.0) at 2025-12-05 05:08:16 +0000