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-rw-r--r--libdwarf/dwarf_weaks.c134
1 files changed, 134 insertions, 0 deletions
diff --git a/libdwarf/dwarf_weaks.c b/libdwarf/dwarf_weaks.c
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+++ b/libdwarf/dwarf_weaks.c
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+/*
+
+ Copyright (C) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
+ Portions Copyright (C) 2009-2010 David Anderson. All Rights Reserved.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of version 2.1 of the GNU Lesser General Public License
+ as published by the Free Software Foundation.
+
+ This program is distributed in the hope that it would be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+ Further, this software is distributed without any warranty that it is
+ free of the rightful claim of any third person regarding infringement
+ or the like. Any license provided herein, whether implied or
+ otherwise, applies only to this software file. Patent licenses, if
+ any, provided herein do not apply to combinations of this program with
+ other software, or any other product whatsoever.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this program; if not, write the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston MA 02110-1301,
+ USA.
+
+ Contact information: Silicon Graphics, Inc., 1500 Crittenden Lane,
+ Mountain View, CA 94043, or:
+
+ http://www.sgi.com
+
+ For further information regarding this notice, see:
+
+ http://oss.sgi.com/projects/GenInfo/NoticeExplan
+
+*/
+
+
+
+#include "config.h"
+#include "dwarf_incl.h"
+#include <stdio.h>
+#include "dwarf_weaks.h"
+#include "dwarf_global.h"
+
+int
+dwarf_get_weaks(Dwarf_Debug dbg,
+ Dwarf_Weak ** weaks,
+ Dwarf_Signed * ret_weak_count, Dwarf_Error * error)
+{
+ int res = _dwarf_load_section(dbg, &dbg->de_debug_weaknames,error);
+ if (res != DW_DLV_OK) {
+ return res;
+ }
+ if (!dbg->de_debug_weaknames.dss_size) {
+ return (DW_DLV_NO_ENTRY);
+ }
+
+
+ return _dwarf_internal_get_pubnames_like_data(dbg,
+ dbg->de_debug_weaknames.dss_data,
+ dbg->de_debug_weaknames.dss_size,
+ (Dwarf_Global **) weaks, /* Type punning for sections
+ with identical format. */
+ ret_weak_count,
+ error,
+ DW_DLA_WEAK_CONTEXT,
+ DW_DLA_WEAK,
+ DW_DLE_DEBUG_WEAKNAMES_LENGTH_BAD,
+ DW_DLE_DEBUG_WEAKNAMES_VERSION_ERROR);
+}
+
+/* Deallocating fully requires deallocating the list
+ and all entries. But some internal data is
+ not exposed, so we need a function with internal knowledge.
+*/
+
+void
+dwarf_weaks_dealloc(Dwarf_Debug dbg, Dwarf_Weak * dwgl,
+ Dwarf_Signed count)
+{
+ _dwarf_internal_globals_dealloc(dbg, (Dwarf_Global *) dwgl,
+ count,
+ DW_DLA_WEAK_CONTEXT,
+ DW_DLA_WEAK, DW_DLA_LIST);
+ return;
+}
+
+
+
+int
+dwarf_weakname(Dwarf_Weak weak_in, char **ret_name, Dwarf_Error * error)
+{
+ Dwarf_Global weak = (Dwarf_Global) weak_in;
+
+ if (weak == NULL) {
+ _dwarf_error(NULL, error, DW_DLE_WEAK_NULL);
+ return (DW_DLV_ERROR);
+ }
+ *ret_name = (char *) (weak->gl_name);
+ return DW_DLV_OK;
+}
+
+
+int
+dwarf_weak_die_offset(Dwarf_Weak weak_in,
+ Dwarf_Off * weak_off, Dwarf_Error * error)
+{
+ Dwarf_Global weak = (Dwarf_Global) weak_in;
+
+ return dwarf_global_die_offset(weak, weak_off, error);
+}
+
+
+int
+dwarf_weak_cu_offset(Dwarf_Weak weak_in,
+ Dwarf_Off * weak_off, Dwarf_Error * error)
+{
+ Dwarf_Global weak = (Dwarf_Global) weak_in;
+
+ return dwarf_global_cu_offset(weak, weak_off, error);
+}
+
+
+int
+dwarf_weak_name_offsets(Dwarf_Weak weak_in,
+ char **weak_name,
+ Dwarf_Off * die_offset,
+ Dwarf_Off * cu_offset, Dwarf_Error * error)
+{
+ Dwarf_Global weak = (Dwarf_Global) weak_in;
+
+ return dwarf_global_name_offsets(weak,
+ weak_name, die_offset, cu_offset, error);
+}