xref: /freebsd-11.0-release/contrib/elftoolchain/libdwarf/dwarf_pro_sections.c

/*-
 * Copyright (c) 2010 Kai Wang
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include "_libdwarf.h"

ELFTC_VCSID("$Id: dwarf_pro_sections.c 2074 2011-10-27 03:34:33Z jkoshy $");

Dwarf_Signed
dwarf_transform_to_disk_form(Dwarf_P_Debug dbg, Dwarf_Error *error)
{

	if (dbg == NULL) {
		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
		return (DW_DLV_NOCOUNT);
	}

	if (_dwarf_generate_sections(dbg, error) != DW_DLE_NONE)
		return (DW_DLV_NOCOUNT);

	return (dbg->dbgp_seccnt);
}

Dwarf_Ptr
dwarf_get_section_bytes(Dwarf_P_Debug dbg, Dwarf_Signed dwarf_section,
    Dwarf_Signed *elf_section_index, Dwarf_Unsigned *length, Dwarf_Error *error)
{
	Dwarf_Ptr data;

	(void) dwarf_section;	/* ignored. */

	if (dbg == NULL || elf_section_index == NULL || length == NULL) {
		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
		return (NULL);
	}

	if (dbg->dbgp_secpos == NULL) {
		DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
		return (NULL);
	}

	*elf_section_index = dbg->dbgp_secpos->ds_ndx;
	*length = dbg->dbgp_secpos->ds_size;
	data = dbg->dbgp_secpos->ds_data;

	dbg->dbgp_secpos = STAILQ_NEXT(dbg->dbgp_secpos, ds_next);

	return (data);
}

void
dwarf_reset_section_bytes(Dwarf_P_Debug dbg)
{

	assert(dbg != NULL);

	dbg->dbgp_secpos = STAILQ_FIRST(&dbg->dbgp_seclist);
	dbg->dbgp_drspos = STAILQ_FIRST(&dbg->dbgp_drslist);
}