--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/elf4rom/libs/libelf-0.8.10/lib/x.movscn.c Fri Jan 15 09:07:44 2010 +0000
@@ -0,0 +1,112 @@
+/*
+x.movscn.c - implementation of the elfx_movscn(3) function.
+Copyright (C) 1995 - 2001, 2003 Michael Riepe
+
+This 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.
+
+This 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 this library; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#include <private.h>
+
+#ifndef lint
+static const char rcsid[] = "@(#) $Id: x.movscn.c,v 1.13 2005/05/21 15:39:27 michael Exp $";
+#endif /* lint */
+
+size_t
+elfx_movscn(Elf *elf, Elf_Scn *scn, Elf_Scn *after) {
+ Elf_Scn *prev;
+ Elf_Scn *tmp;
+ int off;
+
+ if (!elf || !scn || !after) {
+ return SHN_UNDEF;
+ }
+ elf_assert(elf->e_magic == ELF_MAGIC);
+ if (elf->e_kind != ELF_K_ELF) {
+ seterr(ERROR_NOTELF);
+ return SHN_UNDEF;
+ }
+ elf_assert(scn->s_magic == SCN_MAGIC);
+ elf_assert(after->s_magic == SCN_MAGIC);
+ if (scn->s_elf != elf || after->s_elf != elf) {
+ seterr(ERROR_ELFSCNMISMATCH);
+ return SHN_UNDEF;
+ }
+ elf_assert(elf->e_scn_1);
+ if (scn == elf->e_scn_1) {
+ seterr(ERROR_NULLSCN);
+ return SHN_UNDEF;
+ }
+ if (scn == after || scn == after->s_link) {
+ /* nothing to do */
+ return scn->s_index;
+ }
+
+ /*
+ * Find previous section.
+ */
+ prev = NULL;
+ for (tmp = elf->e_scn_1; tmp->s_link; tmp = tmp->s_link) {
+ if (tmp->s_link == scn) {
+ prev = tmp;
+ break;
+ }
+ }
+ elf_assert(prev != NULL);
+
+ /*
+ * Update section indices
+ */
+ off = 0;
+ for (tmp = elf->e_scn_1; tmp; tmp = tmp->s_link) {
+ if (off) {
+ tmp->s_index += off;
+ }
+ if (tmp == after) {
+ off++;
+ }
+ else if (tmp == scn) {
+ off--;
+ }
+ }
+ elf_assert(off == 0);
+
+ /*
+ * Move section.
+ */
+ prev->s_link = scn->s_link;
+ scn->s_link = after->s_link;
+ after->s_link = scn;
+ scn->s_index = after->s_index + 1;
+ if (elf->e_scn_n == scn) {
+ elf->e_scn_n = prev;
+ }
+ else if (elf->e_scn_n == after) {
+ elf->e_scn_n = scn;
+ }
+
+#if ENABLE_DEBUG
+ /*
+ * Check section indices
+ */
+ tmp = elf->e_scn_1;
+ elf_assert(tmp->s_index == 0);
+ while (tmp->s_link) {
+ elf_assert(tmp->s_link->s_index == tmp->s_index + 1);
+ tmp = tmp->s_link;
+ }
+#endif /* ENABLE_DEBUG */
+
+ return scn->s_index;
+}