* dlfcn/tst-dlinfo.c: New file.

	* dlfcn/Makefile (tests): Add tst-dlinfo.
	($(objpfx)tst-dlinfo): New target.

	* dlfcn/dlinfo.c: New file.
	* dlfcn/Makefile (libdl-routines): Add it.
	* dlfcn/Versions (libdl: GLIBC_2.3.3): Add dlinfo.
	* dlfcn/dlfcn.h [__USE_GNU]: Declare dlinfo.
	[__USE_GNU] (RTLD_DI_*): New enum constants.
	[__USE_GNU] (Dl_serpath, Dl_serinfo): New types.
	* elf/dl-load.c (cache_rpath): New inline function.
	(_dl_map_object): Use it.
	(_dl_rtld_di_serinfo): New function.
	* sysdeps/generic/ldsodefs.h: Declare it.
	* elf/Versions (ld: GLIBC_PRIVATE): Add it.

1 files changed, 96 insertions, 0 deletions

diff --git a/dlfcn/tst-dlinfo.c b/dlfcn/tst-dlinfo.c
new file mode 100644
index 0000000..70906eb
--- /dev/null
+++ b/dlfcn/tst-dlinfo.c
@@ -0,0 +1,96 @@
+/* Test for dlinfo.
+   Copyright (C) 2003 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>
+#include <stdio.h>
+#include <stdlib.h>
+#include <error.h>
+
+#define TEST_FUNCTION do_test ()
+
+static int
+do_test (void)
+{
+  int status = 0;
+
+  void *handle = dlopen ("glreflib1.so", RTLD_NOW);
+  if (handle == NULL)
+    error (EXIT_FAILURE, 0, "cannot load: glreflib1.so: %s", dlerror ());
+
+#define TRY(req, arg)							      \
+  if (dlinfo (handle, req, arg) != 0)					      \
+    {									      \
+      printf ("dlinfo failed for %s: %s\n", #req, dlerror ());		      \
+      status = 1;							      \
+    }									      \
+  else
+
+  struct link_map *l;
+  TRY (RTLD_DI_LINKMAP, &l)
+    {
+      if (l != handle)
+	{
+	  printf ("bogus link_map? %p != %p\n", l, handle);
+	  status = 1;
+	}
+    }
+
+  char origin[8192];		/* >= PATH_MAX, in theory */
+  TRY (RTLD_DI_ORIGIN, origin)
+    {
+      printf ("origin: %s\n", origin);
+    }
+
+  Dl_serinfo counts;
+  TRY (RTLD_DI_SERINFOSIZE, &counts)
+    {
+      Dl_serinfo *buf = alloca (counts.dls_size);
+      buf->dls_cnt = counts.dls_cnt;
+      buf->dls_size = counts.dls_size;
+      printf ("%u library directories\n", buf->dls_cnt);
+      TRY (RTLD_DI_SERINFO, buf)
+	{
+	  if (counts.dls_cnt != buf->dls_cnt)
+	    {
+	      printf ("??? became %u library directories\n", buf->dls_cnt);
+	      status = 1;
+	    }
+	  for (unsigned int i = 0; i < buf->dls_cnt; ++i)
+	    printf ("\t%#02x\t%s\n",
+		    buf->dls_serpath[i].dls_flags,
+		    buf->dls_serpath[i].dls_name);
+	}
+    }
+
+  unsigned long int lmid = 0xdeadbeefUL;
+  if (dlinfo (handle, RTLD_DI_LMID, &lmid) != 0)
+    printf ("dlinfo refuses RTLD_DI_LMID: %s\n", dlerror ());
+  else
+    {
+      printf ("dlinfo RTLD_DI_LMID worked? %#lx\n", lmid);
+      status = lmid == 0xdeadbeefUL;
+    }
+
+#undef TRY
+  dlclose (handle);
+
+  return status;
+}
+
+#include "../test-skeleton.c"