Home | History | Annotate | Line # | Download | only in libdwarf
dwarf_pro_sections.c revision 1.1 
      1 /*-
      2  * Copyright (c) 2010 Kai Wang
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     24  * SUCH DAMAGE.
     25  */
     26 
     27 #include "_libdwarf.h"
     28 
     29 ELFTC_VCSID("Id: dwarf_pro_sections.c 2074 2011-10-27 03:34:33Z jkoshy ");
     30 
     31 Dwarf_Signed
     32 dwarf_transform_to_disk_form(Dwarf_P_Debug dbg, Dwarf_Error *error)
     33 {
     34 
     35 	if (dbg == NULL) {
     36 		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
     37 		return (DW_DLV_NOCOUNT);
     38 	}
     39 
     40 	if (_dwarf_generate_sections(dbg, error) != DW_DLE_NONE)
     41 		return (DW_DLV_NOCOUNT);
     42 
     43 	return (dbg->dbgp_seccnt);
     44 }
     45 
     46 Dwarf_Ptr
     47 dwarf_get_section_bytes(Dwarf_P_Debug dbg, Dwarf_Signed dwarf_section,
     48     Dwarf_Signed *elf_section_index, Dwarf_Unsigned *length, Dwarf_Error *error)
     49 {
     50 	Dwarf_Ptr data;
     51 
     52 	(void) dwarf_section;	/* ignored. */
     53 
     54 	if (dbg == NULL || elf_section_index == NULL || length == NULL) {
     55 		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
     56 		return (NULL);
     57 	}
     58 
     59 	if (dbg->dbgp_secpos == NULL) {
     60 		DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
     61 		return (NULL);
     62 	}
     63 
     64 	*elf_section_index = dbg->dbgp_secpos->ds_ndx;
     65 	*length = dbg->dbgp_secpos->ds_size;
     66 	data = dbg->dbgp_secpos->ds_data;
     67 
     68 	dbg->dbgp_secpos = STAILQ_NEXT(dbg->dbgp_secpos, ds_next);
     69 
     70 	return (data);
     71 }
     72 
     73 void
     74 dwarf_reset_section_bytes(Dwarf_P_Debug dbg)
     75 {
     76 
     77 	assert(dbg != NULL);
     78 
     79 	dbg->dbgp_secpos = STAILQ_FIRST(&dbg->dbgp_seclist);
     80 	dbg->dbgp_drspos = STAILQ_FIRST(&dbg->dbgp_drslist);
     81 }
     82