cf781b2e16
This brings a number of fixes to elfcopy/strip and DWARF4 improvements. Sponsored by: The FreeBSD Foundation
295 lines
6.7 KiB
C
295 lines
6.7 KiB
C
/*-
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* Copyright (c) 2009,2011 Kai Wang
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "_libdwarf.h"
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ELFTC_VCSID("$Id: dwarf_lineno.c 2983 2014-02-09 00:24:31Z kaiwang27 $");
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int
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dwarf_srclines(Dwarf_Die die, Dwarf_Line **linebuf, Dwarf_Signed *linecount,
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Dwarf_Error *error)
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{
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Dwarf_LineInfo li;
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Dwarf_Debug dbg;
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Dwarf_Line ln;
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Dwarf_CU cu;
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Dwarf_Attribute at;
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int i;
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dbg = die != NULL ? die->die_dbg : NULL;
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if (die == NULL || linebuf == NULL || linecount == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
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return (DW_DLV_ERROR);
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}
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if ((at = _dwarf_attr_find(die, DW_AT_stmt_list)) == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
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return (DW_DLV_NO_ENTRY);
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}
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cu = die->die_cu;
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if (cu->cu_lineinfo == NULL) {
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if (_dwarf_lineno_init(die, at->u[0].u64, error) !=
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DW_DLE_NONE)
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return (DW_DLV_ERROR);
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}
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if (cu->cu_lineinfo == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
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return (DW_DLV_NO_ENTRY);
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}
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li = cu->cu_lineinfo;
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*linecount = (Dwarf_Signed) li->li_lnlen;
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if (*linecount == 0) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
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return (DW_DLV_NO_ENTRY);
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}
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if (li->li_lnarray != NULL) {
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*linebuf = li->li_lnarray;
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return (DW_DLV_OK);
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}
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if ((li->li_lnarray = malloc(*linecount * sizeof(Dwarf_Line))) ==
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NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
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return (DW_DLV_ERROR);
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}
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for (i = 0, ln = STAILQ_FIRST(&li->li_lnlist);
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i < *linecount && ln != NULL; i++, ln = STAILQ_NEXT(ln, ln_next))
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li->li_lnarray[i] = ln;
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*linebuf = li->li_lnarray;
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return (DW_DLV_OK);
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}
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int
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dwarf_srcfiles(Dwarf_Die die, char ***srcfiles, Dwarf_Signed *srccount,
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Dwarf_Error *error)
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{
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Dwarf_LineInfo li;
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Dwarf_LineFile lf;
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Dwarf_Debug dbg;
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Dwarf_CU cu;
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Dwarf_Attribute at;
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int i;
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dbg = die != NULL ? die->die_dbg : NULL;
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if (die == NULL || srcfiles == NULL || srccount == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
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return (DW_DLV_ERROR);
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}
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if ((at = _dwarf_attr_find(die, DW_AT_stmt_list)) == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
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return (DW_DLV_NO_ENTRY);
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}
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cu = die->die_cu;
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if (cu->cu_lineinfo == NULL) {
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if (_dwarf_lineno_init(die, at->u[0].u64, error) !=
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DW_DLE_NONE)
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return (DW_DLV_ERROR);
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}
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if (cu->cu_lineinfo == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
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return (DW_DLV_NO_ENTRY);
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}
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li = cu->cu_lineinfo;
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*srccount = (Dwarf_Signed) li->li_lflen;
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if (*srccount == 0) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
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return (DW_DLV_NO_ENTRY);
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}
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if (li->li_lfnarray != NULL) {
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*srcfiles = li->li_lfnarray;
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return (DW_DLV_OK);
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}
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if ((li->li_lfnarray = malloc(*srccount * sizeof(char *))) == NULL) {
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DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
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return (DW_DLV_ERROR);
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}
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for (i = 0, lf = STAILQ_FIRST(&li->li_lflist);
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i < *srccount && lf != NULL; i++, lf = STAILQ_NEXT(lf, lf_next)) {
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if (lf->lf_fullpath)
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li->li_lfnarray[i] = lf->lf_fullpath;
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else
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li->li_lfnarray[i] = lf->lf_fname;
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}
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*srcfiles = li->li_lfnarray;
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return (DW_DLV_OK);
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}
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int
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dwarf_linebeginstatement(Dwarf_Line ln, Dwarf_Bool *ret_bool,
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Dwarf_Error *error)
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{
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if (ln == NULL || ret_bool == NULL) {
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DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT);
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return (DW_DLV_ERROR);
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}
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*ret_bool = ln->ln_stmt;
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return (DW_DLV_OK);
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}
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int
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dwarf_lineendsequence(Dwarf_Line ln, Dwarf_Bool *ret_bool, Dwarf_Error *error)
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{
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if (ln == NULL || ret_bool == NULL) {
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DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT);
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return (DW_DLV_ERROR);
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}
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*ret_bool = ln->ln_endseq;
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return (DW_DLV_OK);
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}
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int
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dwarf_lineno(Dwarf_Line ln, Dwarf_Unsigned *ret_lineno, Dwarf_Error *error)
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{
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if (ln == NULL || ret_lineno == NULL) {
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DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT);
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return (DW_DLV_ERROR);
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}
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*ret_lineno = ln->ln_lineno;
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return (DW_DLV_OK);
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}
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int
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dwarf_line_srcfileno(Dwarf_Line ln, Dwarf_Unsigned *ret_fileno,
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Dwarf_Error *error)
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{
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if (ln == NULL || ret_fileno == NULL) {
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DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT);
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return (DW_DLV_ERROR);
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}
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*ret_fileno = ln->ln_fileno;
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return (DW_DLV_OK);
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}
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int
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dwarf_lineaddr(Dwarf_Line ln, Dwarf_Addr *ret_lineaddr, Dwarf_Error *error)
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{
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if (ln == NULL || ret_lineaddr == NULL) {
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DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT);
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return (DW_DLV_ERROR);
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}
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*ret_lineaddr = ln->ln_addr;
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return (DW_DLV_OK);
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}
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int
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dwarf_lineoff(Dwarf_Line ln, Dwarf_Signed *ret_lineoff, Dwarf_Error *error)
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{
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if (ln == NULL || ret_lineoff == NULL) {
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DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT);
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return (DW_DLV_ERROR);
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}
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if (ln->ln_column == 0)
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*ret_lineoff = -1;
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else
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*ret_lineoff = (Dwarf_Signed) ln->ln_column;
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return (DW_DLV_OK);
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}
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int
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dwarf_linesrc(Dwarf_Line ln, char **ret_linesrc, Dwarf_Error *error)
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{
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Dwarf_LineInfo li;
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Dwarf_LineFile lf;
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int i;
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if (ln == NULL || ret_linesrc == NULL) {
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DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT);
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return (DW_DLV_ERROR);
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}
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li = ln->ln_li;
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assert(li != NULL);
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for (i = 1, lf = STAILQ_FIRST(&li->li_lflist);
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(Dwarf_Unsigned) i < ln->ln_fileno && lf != NULL;
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i++, lf = STAILQ_NEXT(lf, lf_next))
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;
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if (lf == NULL) {
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DWARF_SET_ERROR(NULL, error, DW_DLE_LINE_FILE_NUM_BAD);
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return (DW_DLV_ERROR);
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}
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if (lf->lf_fullpath) {
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*ret_linesrc = (char *) lf->lf_fullpath;
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return (DW_DLV_OK);
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}
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*ret_linesrc = lf->lf_fname;
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return (DW_DLV_OK);
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}
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int
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dwarf_lineblock(Dwarf_Line ln, Dwarf_Bool *ret_bool, Dwarf_Error *error)
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{
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if (ln == NULL || ret_bool == NULL) {
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DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT);
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return (DW_DLV_ERROR);
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}
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*ret_bool = ln->ln_bblock;
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return (DW_DLV_OK);
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}
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