2003-03-10 Roland McGrath <roland@redhat.com>

	* dlfcn/Makefile (libdl-routines): Add dladdr1.
	* dlfcn/dladdr1.c: New file.
	* dlfcn/dlfcn.h [__USE_GNU]: Declare dladdr1.
	[__USE_GNU] (RTLD_DL_SYMENT, RTLD_DL_LINKMAP): New enum constants.
	* elf/dl-addr.c (_dl_addr): Take new args, a struct link_map ** and
	a const ElfNN_Sym ** to fill in.
	* include/dlfcn.h: Update decl.  Include <link.h>.
	* dlfcn/dladdr.c (dladdr): Update caller.
	* malloc/mtrace.c (tr_where): Likewise.
	* sysdeps/generic/elf/backtracesyms.c: Likewise.
	* sysdeps/generic/elf/backtracesymsfd.c: Likewise.
	* dlfcn/Versions (libdl: GLIBC_2.3.3): New set, add dladdr1.
	* Versions.def (libdl): Define GLIBC_2.3.3 set.

1 files changed, 35 insertions, 0 deletions

diff --git a/dlfcn/dladdr1.c b/dlfcn/dladdr1.c
new file mode 100644
index 0000000000..51b53b5861
--- /dev/null
+++ b/dlfcn/dladdr1.c
@@ -0,0 +1,35 @@
+/* Locate the shared object symbol nearest a given address.
+   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>
+
+int
+dladdr1 (const void *address, Dl_info *info, void **extra, int flags)
+{
+  switch (flags)
+    {
+    default:			/* Make this an error?  */
+    case 0:
+      return _dl_addr (address, info, NULL, NULL);
+    case RTLD_DL_SYMENT:
+      return _dl_addr (address, info, NULL, (const ElfW(Sym) **) extra);
+    case RTLD_DL_LINKMAP:
+      return _dl_addr (address, info, (struct link_map **) extra, NULL);
+    }
+}