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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/dlfcn.h
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/dlfcn.h')
-rw-r--r--dlfcn/dlfcn.h19
1 files changed, 18 insertions, 1 deletions
diff --git a/dlfcn/dlfcn.h b/dlfcn/dlfcn.h
index 6f88a897ce..6c8e4abcc4 100644
--- a/dlfcn/dlfcn.h
+++ b/dlfcn/dlfcn.h
@@ -1,5 +1,5 @@
 /* User functions for run-time dynamic loading.
-   Copyright (C) 1995-1999, 2000, 2001 Free Software Foundation, Inc.
+   Copyright (C) 1995-1999,2000,2001,2003 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
@@ -83,6 +83,23 @@ typedef struct
 /* Fill in *INFO with the following information about ADDRESS.
    Returns 0 iff no shared object's segments contain that address.  */
 extern int dladdr (__const void *__address, Dl_info *__info) __THROW;
+
+/* Same as `dladdr', but additionally sets *EXTRA_INFO according to FLAGS.  */
+extern int dladdr1 (__const void *__address, Dl_info *__info,
+		    void **__extra_info, int __flags) __THROW;
+
+/* These are the possible values for the FLAGS argument to `dladdr1'.
+   This indicates what extra information is stored at *EXTRA_INFO.
+   It may also be zero, in which case the EXTRA_INFO argument is not used.  */
+enum
+  {
+    /* Matching symbol table entry (const ElfNN_Sym *).  */
+    RTLD_DL_SYMENT = 1,
+
+    /* The object containing the address (struct link_map *).  */
+    RTLD_DL_LINKMAP = 2
+  };
+
 #endif
 
 __END_DECLS