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

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* 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.
This commit is contained in:
Roland McGrath
2003-03-10 09:12:11 +00:00
parent e48f96382f
commit 8dd569934c
11 changed files with 79 additions and 13 deletions
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10
elf/dl-addr.c
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@ -1,5 +1,5 @@
/* Locate the shared object symbol nearest a given address.
Copyright (C) 1996-2000, 2001, 2002 Free Software Foundation, Inc.
Copyright (C) 1996-2000,2001,2002,2003 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
@ -24,7 +24,8 @@
int
internal_function
_dl_addr (const void *address, Dl_info *info)
_dl_addr (const void *address, Dl_info *info,
struct link_map **mapp, const ElfW(Sym) **symbolp)
{
const ElfW(Addr) addr = DL_LOOKUP_ADDRESS (address);
struct link_map *l, *match;
@ -93,6 +94,11 @@ _dl_addr (const void *address, Dl_info *info)
|| ELFW(ST_BIND) (symtab->st_info) == STB_WEAK))
matchsym = (ElfW(Sym) *) symtab;
if (mapp)
*mapp = match;
if (symbolp)
*symbolp = matchsym;
if (matchsym)
{
/* We found a symbol close by. Fill in its name and exact address. */