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authorRoland McGrath <roland@gnu.org>2003-03-10 09:12:11 +0000
committerRoland McGrath <roland@gnu.org>2003-03-10 09:12:11 +0000
commit8dd569934c2019dff527f0587f3d809efeec7c03 (patch)
tree56541d1fa27eed805f18da76464f4b1be727adb5 /dlfcn/dladdr1.c
parente48f96382f237c0edad5c446eca867092406a51d (diff)
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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.
Diffstat (limited to 'dlfcn/dladdr1.c')
-rw-r--r--dlfcn/dladdr1.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/dlfcn/dladdr1.c b/dlfcn/dladdr1.c
new file mode 100644
index 0000000..51b53b5
--- /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);
+ }
+}