145 lines
3.8 KiB
C
145 lines
3.8 KiB
C
/* A variant of get-lines that uses dwarf_next_lines.
|
|
Copyright (C) 2002, 2004, 2018 Red Hat, Inc.
|
|
This file is part of elfutils.
|
|
|
|
This file is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
elfutils is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif
|
|
|
|
#include <fcntl.h>
|
|
#include <inttypes.h>
|
|
#include <libelf.h>
|
|
#include ELFUTILS_HEADER(dw)
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
int result = 0;
|
|
int cnt;
|
|
|
|
for (cnt = 1; cnt < argc; ++cnt)
|
|
{
|
|
int fd = open (argv[cnt], O_RDONLY);
|
|
|
|
Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ);
|
|
if (dbg == NULL)
|
|
{
|
|
printf ("%s not usable: %s\n", argv[cnt], dwarf_errmsg (-1));
|
|
close (fd);
|
|
continue;
|
|
}
|
|
|
|
Dwarf_Off off;
|
|
Dwarf_Off next_off = 0;
|
|
Dwarf_CU *cu = NULL;
|
|
Dwarf_Lines *lb;
|
|
size_t nlb;
|
|
int res;
|
|
while ((res = dwarf_next_lines (dbg, off = next_off, &next_off, &cu,
|
|
NULL, NULL, &lb, &nlb)) == 0)
|
|
{
|
|
printf ("off = %" PRIu64 "\n", off);
|
|
printf (" %zu lines\n", nlb);
|
|
|
|
for (size_t i = 0; i < nlb; ++i)
|
|
{
|
|
Dwarf_Line *l = dwarf_onesrcline (lb, i);
|
|
if (l == NULL)
|
|
{
|
|
printf ("%s: cannot get individual line\n", argv[cnt]);
|
|
result = 1;
|
|
break;
|
|
}
|
|
|
|
Dwarf_Addr addr;
|
|
if (dwarf_lineaddr (l, &addr) != 0)
|
|
addr = 0;
|
|
const char *file = dwarf_linesrc (l, NULL, NULL);
|
|
int line;
|
|
if (dwarf_lineno (l, &line) != 0)
|
|
line = 0;
|
|
|
|
printf ("%" PRIx64 ": %s:%d:", (uint64_t) addr,
|
|
file ?: "???", line);
|
|
|
|
/* Getting the file path through the Dwarf_Files should
|
|
result in the same path. */
|
|
Dwarf_Files *files;
|
|
size_t idx;
|
|
if (dwarf_line_file (l, &files, &idx) != 0)
|
|
{
|
|
printf ("%s: cannot get file from line (%zd): %s\n",
|
|
argv[cnt], i, dwarf_errmsg (-1));
|
|
result = 1;
|
|
break;
|
|
}
|
|
const char *path = dwarf_filesrc (files, idx, NULL, NULL);
|
|
if ((path == NULL && file != NULL)
|
|
|| (path != NULL && file == NULL)
|
|
|| (strcmp (file, path) != 0))
|
|
{
|
|
printf ("%s: line %zd srcline (%s) != file srcline (%s)\n",
|
|
argv[cnt], i, file ?: "???", path ?: "???");
|
|
result = 1;
|
|
break;
|
|
}
|
|
|
|
int column;
|
|
if (dwarf_linecol (l, &column) != 0)
|
|
column = 0;
|
|
if (column >= 0)
|
|
printf ("%d:", column);
|
|
|
|
bool is_stmt;
|
|
if (dwarf_linebeginstatement (l, &is_stmt) != 0)
|
|
is_stmt = false;
|
|
bool end_sequence;
|
|
if (dwarf_lineendsequence (l, &end_sequence) != 0)
|
|
end_sequence = false;
|
|
bool basic_block;
|
|
if (dwarf_lineblock (l, &basic_block) != 0)
|
|
basic_block = false;
|
|
bool prologue_end;
|
|
if (dwarf_lineprologueend (l, &prologue_end) != 0)
|
|
prologue_end = false;
|
|
bool epilogue_begin;
|
|
if (dwarf_lineepiloguebegin (l, &epilogue_begin) != 0)
|
|
epilogue_begin = false;
|
|
|
|
printf (" is_stmt:%s, end_seq:%s, bb:%s, prologue:%s, epilogue:%s\n",
|
|
is_stmt ? "yes" : "no", end_sequence ? "yes" : "no",
|
|
basic_block ? "yes" : "no", prologue_end ? "yes" : "no",
|
|
epilogue_begin ? "yes" : "no");
|
|
}
|
|
}
|
|
|
|
if (res < 0)
|
|
{
|
|
printf ("dwarf_next_lines failed: %s\n", dwarf_errmsg (-1));
|
|
result = 1;
|
|
}
|
|
|
|
dwarf_end (dbg);
|
|
close (fd);
|
|
}
|
|
|
|
return result;
|
|
}
|