summaryrefslogtreecommitdiffstats
path: root/libasm/asm_newsubscn.c
diff options
context:
space:
mode:
Diffstat (limited to 'libasm/asm_newsubscn.c')
-rw-r--r--libasm/asm_newsubscn.c99
1 files changed, 99 insertions, 0 deletions
diff --git a/libasm/asm_newsubscn.c b/libasm/asm_newsubscn.c
new file mode 100644
index 00000000..a83607ac
--- /dev/null
+++ b/libasm/asm_newsubscn.c
@@ -0,0 +1,99 @@
+/* Create new subsection section in given section.
+ Copyright (C) 2002 Red Hat, Inc.
+ This file is part of elfutils.
+ Written by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils 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
+ General Public License for more details.
+
+ You should have received copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdlib.h>
+
+#include <libasmP.h>
+#include <system.h>
+
+
+AsmScn_t *
+asm_newsubscn (asmscn, nr)
+ AsmScn_t *asmscn;
+ unsigned int nr;
+{
+ AsmScn_t *runp;
+ AsmScn_t *newp;
+
+ /* Just return if no section is given. The error must have been
+ somewhere else. */
+ if (asmscn == NULL)
+ return NULL;
+
+ /* Determine whether there is already a subsection with this number. */
+ runp = asmscn->subsection_id == 0 ? asmscn : asmscn->data.up;
+ while (1)
+ {
+ if (runp->subsection_id == nr)
+ /* Found it. */
+ return runp;
+
+ if (runp->subnext == NULL || runp->subnext->subsection_id > nr)
+ break;
+
+ runp = runp->subnext;
+ }
+
+ newp = (AsmScn_t *) malloc (sizeof (AsmScn_t));
+ if (newp == NULL)
+ return NULL;
+
+ /* Same assembler context than the original section. */
+ newp->ctx = runp->ctx;
+
+ /* User provided the subsectio nID. */
+ newp->subsection_id = nr;
+
+ /* Inherit the parent's type. */
+ newp->type = runp->type;
+
+ /* Pointer to the zeroth subsection. */
+ newp->data.up = runp->subsection_id == 0 ? runp : runp->data.up;
+
+ /* We start at offset zero. */
+ newp->offset = 0;
+ /* And generic alignment. */
+ newp->max_align = 1;
+
+ /* No output yet. */
+ newp->content = NULL;
+
+ /* Inherit the fill pattern from the section this one is derived from. */
+ newp->pattern = asmscn->pattern;
+
+ /* Enqueue at the right position in the list. */
+ newp->subnext = runp->subnext;
+ runp->subnext = newp;
+
+ return newp;
+}