Home | History | Annotate | Line # | Download | only in libdwarf 
      1 /*	$NetBSD: dwarf_pro_sections.c,v 1.5 2024/03/03 17:37:32 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2010 Kai Wang
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include "_libdwarf.h"
     30 
     31 __RCSID("$NetBSD: dwarf_pro_sections.c,v 1.5 2024/03/03 17:37:32 christos Exp $");
     32 ELFTC_VCSID("Id: dwarf_pro_sections.c 2074 2011-10-27 03:34:33Z jkoshy");
     33 
     34 Dwarf_Signed
     35 dwarf_transform_to_disk_form(Dwarf_P_Debug dbg, Dwarf_Error *error)
     36 {
     37 
     38 	if (dbg == NULL) {
     39 		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
     40 		return (DW_DLV_NOCOUNT);
     41 	}
     42 
     43 	if (_dwarf_generate_sections(dbg, error) != DW_DLE_NONE)
     44 		return (DW_DLV_NOCOUNT);
     45 
     46 	return (dbg->dbgp_seccnt);
     47 }
     48 
     49 Dwarf_Ptr
     50 dwarf_get_section_bytes(Dwarf_P_Debug dbg, Dwarf_Signed dwarf_section,
     51     Dwarf_Signed *elf_section_index, Dwarf_Unsigned *length, Dwarf_Error *error)
     52 {
     53 	Dwarf_Ptr data;
     54 
     55 	(void) dwarf_section;	/* ignored. */
     56 
     57 	if (dbg == NULL || elf_section_index == NULL || length == NULL) {
     58 		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
     59 		return (NULL);
     60 	}
     61 
     62 	if (dbg->dbgp_secpos == NULL) {
     63 		DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
     64 		return (NULL);
     65 	}
     66 
     67 	*elf_section_index = dbg->dbgp_secpos->ds_ndx;
     68 	*length = dbg->dbgp_secpos->ds_size;
     69 	data = dbg->dbgp_secpos->ds_data;
     70 
     71 	dbg->dbgp_secpos = STAILQ_NEXT(dbg->dbgp_secpos, ds_next);
     72 
     73 	return (data);
     74 }
     75 
     76 void
     77 dwarf_reset_section_bytes(Dwarf_P_Debug dbg)
     78 {
     79 
     80 	assert(dbg != NULL);
     81 
     82 	dbg->dbgp_secpos = STAILQ_FIRST(&dbg->dbgp_seclist);
     83 	dbg->dbgp_drspos = STAILQ_FIRST(&dbg->dbgp_drslist);
     84 }
     85