aboutsummaryrefslogtreecommitdiff
path: root/elf/dl-init.c
diff options
context:
space:
mode:
authorRoland McGrath <roland@gnu.org>1995-05-02 06:35:55 +0000
committerRoland McGrath <roland@gnu.org>1995-05-02 06:35:55 +0000
commitd66e34cd423425c348bcc83df127dd19711b0b9a (patch)
tree97058e776d3b4fe06ef54bc4951596991652183f /elf/dl-init.c
parent08162fa888913a5153d2fcdc4e1a816b57b1fe56 (diff)
downloadglibc-d66e34cd423425c348bcc83df127dd19711b0b9a.zip
glibc-d66e34cd423425c348bcc83df127dd19711b0b9a.tar.gz
glibc-d66e34cd423425c348bcc83df127dd19711b0b9a.tar.bz2
* sysdeps/mach/i386/sysdep.h (SNARF_ARGS, CALL_WITH_SP): Rewritten.
* sysdeps/i386/dl-machine.h: New file. * sysdeps/stub/dl-machine.h: New file. * sysdeps/i386/dl-runtime.c: New file. * sysdeps/stub/dl-runtime.c: New file. * sysdeps/i386/elf/start.S: New file. * sysdeps/generic/dl-sysdep.c: New file. * sysdeps/mach/hurd/dl-sysdep.c: New file.
Diffstat (limited to 'elf/dl-init.c')
-rw-r--r--elf/dl-init.c86
1 files changed, 86 insertions, 0 deletions
diff --git a/elf/dl-init.c b/elf/dl-init.c
new file mode 100644
index 0000000..e3bfc2c
--- /dev/null
+++ b/elf/dl-init.c
@@ -0,0 +1,86 @@
+/* Return the next shared object initializer function not yet run.
+Copyright (C) 1995 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 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., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <stddef.h>
+#include <link.h>
+
+
+Elf32_Addr
+_dl_init_next (void)
+{
+ struct link_map *l;
+ Elf32_Addr init;
+
+ Elf32_Addr next_init (struct link_map *l)
+ {
+ if (l->l_init_called)
+ /* This object is all done. */
+ return 0;
+ if (l->l_init_running)
+ {
+ /* This object's initializer was just running.
+ Now mark it as having run, so this object
+ will be skipped in the future. */
+ l->l_init_called = 1;
+ l->l_init_running = 0;
+ return 0;
+ }
+
+ if (l->l_info[DT_NEEDED])
+ {
+ /* Find each dependency in order, and see if it
+ needs to run an initializer. */
+ const Elf32_Dyn *d;
+ for (d = l->l_ld; d->d_tag != DT_NULL; ++d)
+ if (d->d_tag == DT_NEEDED)
+ {
+ struct link_map *needed = _dl_map_object
+ (l, (const char *) (l->l_addr + d->d_un.d_ptr), NULL);
+ Elf32_Addr init;
+ --needed->l_opencount;
+ init = next_init (l); /* Recurse on this dependency. */
+ if (init != 0)
+ return init;
+ }
+ }
+
+ if (l->l_info[DT_INIT])
+ {
+ /* Run this object's initializer. */
+ l->l_init_running = 1;
+ return l->l_addr + l->l_info[DT_INIT]->d_un.d_ptr;
+ }
+
+ /* No initializer for this object.
+ Mark it so we will skip it in the future. */
+ l->l_init_called = 1;
+ return 0;
+ }
+
+ /* Look for the first initializer not yet called. */
+ l = _dl_loaded;
+ do
+ {
+ init = next_init (l);
+ l = l->l_next;
+ }
+ while (init == 0 && l);
+
+ return init;
+}