145 lines
3.3 KiB
C
145 lines
3.3 KiB
C
/* Test program for dwarf_getmacros and related
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Copyright (C) 2009, 2014 Red Hat, Inc.
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This file is part of elfutils.
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This file is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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elfutils is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <config.h>
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#include ELFUTILS_HEADER(dw)
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#include <dwarf.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <inttypes.h>
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static void include (Dwarf *dbg, Dwarf_Off macoff, ptrdiff_t token);
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static int
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mac (Dwarf_Macro *macro, void *dbg)
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{
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static int level = 0;
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unsigned int opcode;
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dwarf_macro_opcode (macro, &opcode);
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switch (opcode)
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{
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case DW_MACRO_import:
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{
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Dwarf_Attribute at;
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int r = dwarf_macro_param (macro, 0, &at);
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assert (r == 0);
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Dwarf_Word w;
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r = dwarf_formudata (&at, &w);
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assert (r == 0);
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printf ("%*sinclude %#" PRIx64 "\n", level, "", w);
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++level;
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include (dbg, w, DWARF_GETMACROS_START);
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--level;
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printf ("%*s/include\n", level, "");
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break;
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}
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case DW_MACRO_start_file:
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{
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Dwarf_Files *files;
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size_t nfiles;
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if (dwarf_macro_getsrcfiles (dbg, macro, &files, &nfiles) < 0)
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printf ("dwarf_macro_getsrcfiles: %s\n",
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dwarf_errmsg (dwarf_errno ()));
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Dwarf_Word w = 0;
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dwarf_macro_param2 (macro, &w, NULL);
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const char *name = dwarf_filesrc (files, (size_t) w, NULL, NULL);
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printf ("%*sfile %s\n", level, "", name);
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++level;
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break;
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}
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case DW_MACRO_end_file:
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{
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--level;
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printf ("%*s/file\n", level, "");
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break;
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}
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case DW_MACINFO_define:
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case DW_MACRO_define_strp:
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{
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const char *value;
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dwarf_macro_param2 (macro, NULL, &value);
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printf ("%*s%s\n", level, "", value);
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break;
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}
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case DW_MACINFO_undef:
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case DW_MACRO_undef_strp:
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break;
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default:
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{
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size_t paramcnt;
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dwarf_macro_getparamcnt (macro, ¶mcnt);
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printf ("%*sopcode %u with %zd arguments\n",
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level, "", opcode, paramcnt);
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break;
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}
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}
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return DWARF_CB_ABORT;
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}
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static void
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include (Dwarf *dbg, Dwarf_Off macoff, ptrdiff_t token)
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{
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while ((token = dwarf_getmacros_off (dbg, macoff, mac, dbg, token)) != 0)
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if (token == -1)
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{
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puts (dwarf_errmsg (dwarf_errno ()));
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break;
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}
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}
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int
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main (int argc, char *argv[])
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{
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assert (argc >= 3);
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const char *name = argv[1];
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ptrdiff_t cuoff = strtol (argv[2], NULL, 0);
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bool new_style = argc > 3;
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int fd = open (name, O_RDONLY);
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Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ);
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Dwarf_Die cudie_mem, *cudie = dwarf_offdie (dbg, cuoff, &cudie_mem);
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for (ptrdiff_t off = new_style ? DWARF_GETMACROS_START : 0;
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(off = dwarf_getmacros (cudie, mac, dbg, off)); )
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if (off == -1)
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{
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puts (dwarf_errmsg (dwarf_errno ()));
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break;
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}
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dwarf_end (dbg);
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return 0;
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}
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