Update.

2001-07-25  Jakub Jelinek  <jakub@redhat.com>

	* elf/Makefile (routines): Add dl-iteratephdr and
	dl-iteratephdr-static.
	(elide-routines.os): Add dl-iteratephdr-static.
	* elf/dl-iteratephdr.c: New file.
	* elf/link.h (struct dl_phdr_info): New definition.
	(dl_iterate_phdr): New prototype.
	* elf/Versions (dl_iterate_phdr): Add at GLIBC_2.2.4.
	* include/link.h (struct dl_phdr_info): New definition.
	(dl_iterate_phdr, __dl_iterate_phdr): New prototypes.
	* sysdeps/generic/dl-iteratephdr-static.c: New file.
	* sysdeps/unix/sysv/linux/ia64/dl-iteratephdr-static.c: New file.

	* hurd/hurdsig.c (_hurdsig_init): Fix incorrect initialization
	of pending signals.

3 files changed, 85 insertions, 1 deletions

diff --git a/elf/Versions b/elf/Versions
index b72cedbcef..2506d100a6 100644
--- a/elf/Versions
+++ b/elf/Versions
@@ -14,6 +14,9 @@ libc {
     # functions used in other libraries
     _dl_sym; _dl_vsym;
   }
+  GLIBC_2.2.4 {
+    dl_iterate_phdr;
+  }
 }
 
 ld {
diff --git a/elf/dl-iteratephdr.c b/elf/dl-iteratephdr.c
new file mode 100644
index 0000000000..fa62dc760e
--- /dev/null
+++ b/elf/dl-iteratephdr.c
@@ -0,0 +1,61 @@
+/* Get loaded objects program headers.
+   Copyright (C) 2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <ldsodefs.h>
+#include <stddef.h>
+#include <bits/libc-lock.h>
+
+__libc_lock_define (extern, _dl_load_lock)
+
+int
+__dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info,
+				    size_t size, void *data), void *data)
+{
+  struct link_map *l;
+  struct dl_phdr_info info;
+  int ret = 0;
+
+  /* Make sure we are alone.  */
+  __libc_lock_lock (_dl_load_lock);
+
+  for (l = _dl_loaded; l != NULL; l = l->l_next)
+    {
+      /* Skip the dynamic linker.  */
+      if (l->l_phdr == NULL)
+	continue;
+      info.dlpi_addr = l->l_addr;
+      info.dlpi_name = l->l_name;
+      info.dlpi_phdr = l->l_phdr;
+      info.dlpi_phnum = l->l_phnum;
+      ret = callback (&info, sizeof (struct dl_phdr_info), data);
+      if (ret)
+	break;
+    }
+
+  /* Release the lock.  */
+  __libc_lock_unlock (_dl_load_lock);
+
+  return ret;
+}
+
+#ifdef SHARED
+weak_alias (__dl_iterate_phdr, dl_iterate_phdr);
+#endif
diff --git a/elf/link.h b/elf/link.h
index 1aa0a3e597..f8e7f629d0 100644
--- a/elf/link.h
+++ b/elf/link.h
@@ -1,6 +1,6 @@
 /* Data structure for communication from the run-time dynamic linker for
    loaded ELF shared objects.
-   Copyright (C) 1995-1999, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1995-1999, 2000, 2001 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
@@ -92,4 +92,24 @@ struct link_map
     struct link_map *l_next, *l_prev; /* Chain of loaded objects.  */
   };
 
+#ifdef __USE_GNU
+
+struct dl_phdr_info
+  {
+    ElfW(Addr) dlpi_addr;
+    const char *dlpi_name;
+    const ElfW(Phdr) *dlpi_phdr;
+    ElfW(Half) dlpi_phnum;
+  };
+
+__BEGIN_DECLS
+
+extern int dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info,
+					     size_t size, void *data),
+			    void *data) __THROW;
+
+__END_DECLS
+
+#endif
+
 #endif /* link.h */