2.5-18.1

15 files changed, 680 insertions, 43 deletions

diff --git a/dlfcn/Makefile b/dlfcn/Makefile
index ed20ae5ccd..63e7b31b2a 100644
--- a/dlfcn/Makefile
+++ b/dlfcn/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1995-2002, 2003, 2004 Free Software Foundation, Inc.
+# Copyright (C) 1995-2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
 # This file is part of the GNU C Library.
 
 # The GNU C Library is free software; you can redistribute it and/or
@@ -20,13 +20,14 @@ subdir		:= dlfcn
 headers		:= bits/dlfcn.h dlfcn.h
 extra-libs	:= libdl
 libdl-routines	:= dlopen dlclose dlsym dlvsym dlerror dladdr dladdr1 dlinfo \
-		   dlmopen
-routines	:= $(patsubst %,s%,$(libdl-routines))
+		   dlmopen dlfcn
+routines	:= $(patsubst %,s%,$(filter-out dlfcn,$(libdl-routines)))
 elide-routines.os := $(routines)
 distribute	:= dlopenold.c glreflib1.c glreflib2.c failtestmod.c \
 		   defaultmod1.c defaultmod2.c errmsg1mod.c modatexit.c \
 		   modcxaatexit.c modstatic.c modstatic2.c \
-		   bug-dlsym1-lib1.c bug-dlsym1-lib2.c
+		   bug-dlsym1-lib1.c bug-dlsym1-lib2.c bug-atexit1-lib.c \
+		   bug-atexit2-lib.c
 
 extra-libs-others := libdl
 
@@ -34,19 +35,21 @@ include ../Makeconfig
 
 ifeq ($(versioning),yes)
 libdl-routines	+= dlopenold
-libdl-shared-only-routines := dlopenold
+libdl-shared-only-routines := dlopenold dlfcn
 endif
 
 ifeq (yes,$(build-shared))
 tests = glrefmain failtest tst-dladdr default errmsg1 tstcxaatexit \
-	bug-dlopen1 bug-dlsym1 tst-dlinfo
+	bug-dlopen1 bug-dlsym1 tst-dlinfo bug-atexit1 bug-atexit2 \
+	bug-atexit3
 ifeq (yes,$(have-protected))
 tests += tstatexit
 endif
 endif
 modules-names = glreflib1 glreflib2 failtestmod defaultmod1 defaultmod2 \
 		errmsg1mod modatexit modcxaatexit \
-		bug-dlsym1-lib1 bug-dlsym1-lib2
+		bug-dlsym1-lib1 bug-dlsym1-lib2 bug-atexit1-lib \
+		bug-atexit2-lib bug-atexit3-lib
 
 failtestmod.so-no-z-defs = yes
 glreflib2.so-no-z-defs = yes
@@ -60,16 +63,12 @@ tststatic-ENV = LD_LIBRARY_PATH=$(objpfx):$(common-objpfx):$(common-objpfx)elf
 tststatic2-ENV = LD_LIBRARY_PATH=$(objpfx):$(common-objpfx):$(common-objpfx)elf
 endif
 
-extra-objs += $(modules-names:=.os)
+extra-test-objs += $(modules-names:=.os)
 generated := $(modules-names:=.so)
 
 include ../Rules
 
-LDFLAGS-dl.so = -Wl,-dynamic-linker,$(slibdir)/$(rtld-installed-name)
-
 test-modules = $(addprefix $(objpfx),$(addsuffix .so,$(modules-names)))
-$(test-modules): $(objpfx)%.so: $(objpfx)%.os $(common-objpfx)shlib.lds
-	$(build-module)
 
 ifeq ($(build-shared),yes)
 # Build all the modules even when not actually running test programs.
@@ -127,6 +126,22 @@ $(objpfx)bug-dlsym1-lib1.so: $(objpfx)bug-dlsym1-lib2.so \
 $(objpfx)bug-dlsym1-lib2.so: $(common-objpfx)libc.so \
 			     $(common-objpfx)libc_nonshared.a
 
+$(objpfx)bug-atexit1: $(libdl)
+$(objpfx)bug-atexit1.out: $(objpfx)bug-atexit1-lib.so
+$(objpfx)bug-atexit1-lib.so: $(common-objpfx)libc.so \
+			     $(common-objpfx)libc_nonshared.a
+
+$(objpfx)bug-atexit2: $(libdl)
+$(objpfx)bug-atexit2.out: $(objpfx)bug-atexit2-lib.so
+$(objpfx)bug-atexit2-lib.so: $(common-objpfx)libc.so \
+			     $(common-objpfx)libc_nonshared.a
+
+LDLIBS-bug-atexit3-lib.so = -lstdc++ -lgcc_eh $(common-objpfx)elf/ld.so \
+			    $(common-objpfx)libc_nonshared.a
+$(objpfx)bug-atexit3: $(libdl)
+$(objpfx)bug-atexit3.out: $(objpfx)bug-atexit3-lib.so
+$(objpfx)bug-atexit3-lib.so: $(common-objpfx)libc.so \
+			     $(common-objpfx)libc_nonshared.a
 
 
 # Depend on libc.so so a DT_NEEDED is generated in the shared objects.
diff --git a/dlfcn/bug-atexit1-lib.c b/dlfcn/bug-atexit1-lib.c
new file mode 100644
index 0000000000..715bb40b23
--- /dev/null
+++ b/dlfcn/bug-atexit1-lib.c
@@ -0,0 +1,375 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+static int next;
+
+void
+f00 (void)
+{
+  puts ("f00");
+  if (next-- != 0)
+    _exit (1);
+}
+
+void
+f01 (void)
+{
+  puts ("f01");
+  if (next-- != 1)
+    _exit (1);
+}
+
+void
+f02 (void)
+{
+  puts ("f02");
+  if (next-- != 2)
+    _exit (1);
+}
+
+void
+f03 (void)
+{
+  puts ("f03");
+  if (next-- != 3)
+    _exit (1);
+}
+
+void
+f04 (void)
+{
+  puts ("f04");
+  if (next-- != 4)
+    _exit (1);
+}
+
+void
+f05 (void)
+{
+  puts ("f05");
+  if (next-- != 5)
+    _exit (1);
+}
+
+void
+f06 (void)
+{
+  puts ("f06");
+  if (next-- != 6)
+    _exit (1);
+}
+
+void
+f07 (void)
+{
+  puts ("f07");
+  if (next-- != 7)
+    _exit (1);
+}
+
+void
+f08 (void)
+{
+  puts ("f08");
+  if (next-- != 8)
+    _exit (1);
+}
+
+void
+f09 (void)
+{
+  puts ("f09");
+  if (next-- != 9)
+    _exit (1);
+}
+
+void
+f10 (void)
+{
+  puts ("f10");
+  if (next-- != 10)
+    _exit (1);
+}
+
+void
+f11 (void)
+{
+  puts ("f11");
+  if (next-- != 11)
+    _exit (1);
+}
+
+void
+f12 (void)
+{
+  puts ("f12");
+  if (next-- != 12)
+    _exit (1);
+}
+
+void
+f13 (void)
+{
+  puts ("f13");
+  if (next-- != 13)
+    _exit (1);
+}
+
+void
+f14 (void)
+{
+  puts ("f14");
+  if (next-- != 14)
+    _exit (1);
+}
+
+void
+f15 (void)
+{
+  puts ("f15");
+  if (next-- != 15)
+    _exit (1);
+}
+
+void
+f16 (void)
+{
+  puts ("f16");
+  if (next-- != 16)
+    _exit (1);
+}
+
+void
+f17 (void)
+{
+  puts ("f17");
+  if (next-- != 17)
+    _exit (1);
+}
+
+void
+f18 (void)
+{
+  puts ("f18");
+  if (next-- != 18)
+    _exit (1);
+}
+
+void
+f19 (void)
+{
+  puts ("f19");
+  if (next-- != 19)
+    _exit (1);
+}
+
+void
+f20 (void)
+{
+  puts ("f20");
+  if (next-- != 20)
+    _exit (1);
+}
+
+void
+f21 (void)
+{
+  puts ("f21");
+  if (next-- != 21)
+    _exit (1);
+}
+
+void
+f22 (void)
+{
+  puts ("f22");
+  if (next-- != 22)
+    _exit (1);
+}
+
+void
+f23 (void)
+{
+  puts ("f23");
+  if (next-- != 23)
+    _exit (1);
+}
+
+void
+f24 (void)
+{
+  puts ("f24");
+  if (next-- != 24)
+    _exit (1);
+}
+
+void
+f25 (void)
+{
+  puts ("f25");
+  if (next-- != 25)
+    _exit (1);
+}
+
+void
+f26 (void)
+{
+  puts ("f26");
+  if (next-- != 26)
+    _exit (1);
+}
+
+void
+f27 (void)
+{
+  puts ("f27");
+  if (next-- != 27)
+    _exit (1);
+}
+
+void
+f28 (void)
+{
+  puts ("f28");
+  if (next-- != 28)
+    _exit (1);
+}
+
+void
+f29 (void)
+{
+  puts ("f29");
+  if (next-- != 29)
+    _exit (1);
+}
+
+void
+f30 (void)
+{
+  puts ("f30");
+  if (next-- != 30)
+    _exit (1);
+}
+
+void
+f31 (void)
+{
+  puts ("f31");
+  if (next-- != 31)
+    _exit (1);
+}
+
+void
+f32 (void)
+{
+  puts ("f32");
+  if (next-- != 32)
+    _exit (1);
+}
+
+void
+f33 (void)
+{
+  puts ("f33");
+  if (next-- != 33)
+    _exit (1);
+}
+
+void
+f34 (void)
+{
+  puts ("f34");
+  if (next-- != 34)
+    _exit (1);
+}
+
+void
+f35 (void)
+{
+  puts ("f35");
+  if (next-- != 35)
+    _exit (1);
+}
+
+void
+f36 (void)
+{
+  puts ("f36");
+  if (next-- != 36)
+    _exit (1);
+}
+
+void
+f37 (void)
+{
+  puts ("f37");
+  if (next-- != 37)
+    _exit (1);
+}
+
+void
+f38 (void)
+{
+  puts ("f38");
+  if (next-- != 38)
+    _exit (1);
+}
+
+void
+f39 (void)
+{
+  puts ("f39");
+  if (next-- != 39)
+    _exit (1);
+}
+
+void
+foo (void)
+{
+  atexit (f00);
+  atexit (f01);
+  atexit (f02);
+  atexit (f03);
+  atexit (f04);
+  atexit (f05);
+  atexit (f06);
+  atexit (f07);
+  atexit (f08);
+  atexit (f09);
+
+  atexit (f10);
+  atexit (f11);
+  atexit (f12);
+  atexit (f13);
+  atexit (f14);
+  atexit (f15);
+  atexit (f16);
+  atexit (f17);
+  atexit (f18);
+  atexit (f19);
+
+  atexit (f20);
+  atexit (f21);
+  atexit (f22);
+  atexit (f23);
+  atexit (f24);
+  atexit (f25);
+  atexit (f26);
+  atexit (f27);
+  atexit (f28);
+  atexit (f29);
+
+  atexit (f30);
+  atexit (f31);
+  atexit (f32);
+  atexit (f33);
+  atexit (f34);
+  atexit (f35);
+  atexit (f36);
+  atexit (f37);
+  atexit (f38);
+  atexit (f39);
+
+  next = 39;
+}
diff --git a/dlfcn/bug-atexit1.c b/dlfcn/bug-atexit1.c
new file mode 100644
index 0000000000..e2d1d2f776
--- /dev/null
+++ b/dlfcn/bug-atexit1.c
@@ -0,0 +1,23 @@
+/* Derived from a test case in
+   http://sourceware.org/bugzilla/show_bug.cgi?id=1158.  */
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static int
+do_test (void)
+{
+  for (int i = 0; i < 2; ++i)
+    {
+      void *dso = dlopen ("$ORIGIN/bug-atexit1-lib.so", RTLD_NOW);
+      void (*fn) (void) = (void (*) (void)) dlsym (dso, "foo");
+      fn ();
+      dlclose (dso);
+      puts ("round done");
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/dlfcn/bug-atexit2-lib.c b/dlfcn/bug-atexit2-lib.c
new file mode 100644
index 0000000000..ca39657566
--- /dev/null
+++ b/dlfcn/bug-atexit2-lib.c
@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+void
+fx (void)
+{
+  puts ("At exit fx");
+}
+
+void
+foo (void)
+{
+  atexit (fx);
+}
diff --git a/dlfcn/bug-atexit2.c b/dlfcn/bug-atexit2.c
new file mode 100644
index 0000000000..15e9f7aa01
--- /dev/null
+++ b/dlfcn/bug-atexit2.c
@@ -0,0 +1,53 @@
+/* Derived from a test case in
+   http://sourceware.org/bugzilla/show_bug.cgi?id=1158.  */
+#include <dlfcn.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+
+static int next = 3;
+
+static void
+f1 (void)
+{
+  puts ("f1");
+  if (next-- != 1)
+    _exit (1);
+}
+
+static void
+f2 (void)
+{
+  puts ("f2");
+  if (next-- != 2)
+    _exit (1);
+}
+
+static void
+f3 (void)
+{
+  puts ("f3");
+  if (next-- != 3)
+    _exit (1);
+}
+
+static int
+do_test (void)
+{
+  atexit (f1);
+
+  void *dso = dlopen ("$ORIGIN/bug-atexit2-lib.so", RTLD_NOW);
+  void (*fn) (void) = (void (*) (void)) dlsym (dso, "foo");
+  fn ();
+
+  atexit (f2);
+
+  dlclose (dso);
+
+  atexit (f3);
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/dlfcn/bug-atexit3-lib.cc b/dlfcn/bug-atexit3-lib.cc
new file mode 100644
index 0000000000..3d01ea81d2
--- /dev/null
+++ b/dlfcn/bug-atexit3-lib.cc
@@ -0,0 +1,23 @@
+#include <unistd.h>
+
+struct statclass
+{
+  statclass()
+  {
+    write (1, "statclass\n", 10);
+  }
+  ~statclass()
+  {
+    write (1, "~statclass\n", 11);
+  }
+};
+
+struct extclass
+{
+  ~extclass()
+  {
+    static statclass var;
+  }
+};
+
+extclass globvar;
diff --git a/dlfcn/bug-atexit3.c b/dlfcn/bug-atexit3.c
new file mode 100644
index 0000000000..897eca8a86
--- /dev/null
+++ b/dlfcn/bug-atexit3.c
@@ -0,0 +1,18 @@
+#include <dlfcn.h>
+#include <stdio.h>
+
+static int
+do_test (void)
+{
+  void *handle = dlopen ("$ORIGIN/bug-atexit3-lib.so", RTLD_LAZY);
+  if (handle == NULL)
+    {
+      printf ("dlopen failed: %s\n", dlerror ());
+      return 1;
+    }
+  dlclose (handle);
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/dlfcn/dlclose.c b/dlfcn/dlclose.c
index 3ddedcffbe..5a344f31ca 100644
--- a/dlfcn/dlclose.c
+++ b/dlfcn/dlclose.c
@@ -19,6 +19,7 @@
    02111-1307 USA.  */
 
 #include <dlfcn.h>
+#include <ldsodefs.h>
 
 #if !defined SHARED && defined IS_IN_libdl
 
@@ -33,7 +34,7 @@ dlclose (void *handle)
 static void
 dlclose_doit (void *handle)
 {
-  _dl_close (handle);
+  GLRO(dl_close) (handle);
 }
 
 int
diff --git a/dlfcn/dlerror.c b/dlfcn/dlerror.c
index 8789f4f68b..7ea31d4392 100644
--- a/dlfcn/dlerror.c
+++ b/dlfcn/dlerror.c
@@ -1,5 +1,5 @@
 /* Return error detail for failing <dlfcn.h> functions.
-   Copyright (C) 1995-2000,2002,2003,2004 Free Software Foundation, Inc.
+   Copyright (C) 1995-2000,2002,2003,2004,2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -19,6 +19,7 @@
 
 #include <dlfcn.h>
 #include <libintl.h>
+#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -40,6 +41,7 @@ struct dl_action_result
   {
     int errcode;
     int returned;
+    bool malloced;
     const char *objname;
     const char *errstring;
   };
@@ -154,13 +156,13 @@ _dlerror_run (void (*operate) (void *), void *args)
     {
       /* Free the error string from the last failed command.  This can
 	 happen if `dlerror' was not run after an error was found.  */
-      if (strcmp (result->errstring, "out of memory") != 0)
+      if (result->malloced)
 	free ((char *) result->errstring);
       result->errstring = NULL;
     }
 
   result->errcode = GLRO(dl_catch_error) (&result->objname, &result->errstring,
-					  operate, args);
+					  &result->malloced, operate, args);
 
   /* If no error we mark that no error string is available.  */
   result->returned = result->errstring == NULL;
@@ -180,13 +182,30 @@ init (void)
     static_buf = &last_result;
 }
 
+
+static void
+check_free (struct dl_action_result *rec)
+{
+  if (rec->errstring != NULL
+      && strcmp (rec->errstring, "out of memory") != 0)
+    {
+      /* We can free the string only if the allocation happened in the
+	 C library used by the dynamic linker.  This means, it is
+	 always the C library in the base namespave.  */
+      struct link_map *map = NULL;
+      Dl_info info;
+      if (_dl_addr (check_free, &info, &map, NULL) != 0
+	  && map != NULL && map->l_ns == 0)
+	free ((char *) rec->errstring);
+    }
+}
+
+
 static void
 __attribute__ ((destructor))
 fini (void)
 {
-  if (last_result.errstring != NULL
-      && strcmp (last_result.errstring, "out of memory") != 0)
-    free ((char *) last_result.errstring);
+  check_free (&last_result);
 }
 
 
@@ -194,11 +213,7 @@ fini (void)
 static void
 free_key_mem (void *mem)
 {
-  struct dl_action_result *result = (struct dl_action_result *) mem;
-
-  if (result->errstring != NULL
-      && strcmp (result->errstring, "out of memory") != 0)
-    free ((char *) result->errstring);
+  check_free ((struct dl_action_result *) mem);
 
   free (mem);
   __libc_setspecific (key, NULL);
diff --git a/dlfcn/dlfcn.c b/dlfcn/dlfcn.c
new file mode 100644
index 0000000000..1ee225ba47
--- /dev/null
+++ b/dlfcn/dlfcn.c
@@ -0,0 +1,39 @@
+/* Load a shared object at run time.
+   Copyright (C) 2005 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <dlfcn.h>
+
+
+int __dlfcn_argc attribute_hidden;
+char **__dlfcn_argv attribute_hidden;
+
+
+static void
+init (int argc, char *argv[])
+{
+  __dlfcn_argc = argc;
+  __dlfcn_argv = argv;</