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/* Test program for eu_search_macros
Copyright (C) 2023 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/>. */
#include <config.h>
#include ELFUTILS_HEADER(dw)
#include <dwarf.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <inttypes.h>
#include <stdatomic.h>
#include <pthread.h>
#include <unistd.h>
#include <error.h>
static void *thread_work (void * arg);
static int mac (Dwarf_Macro *macro, void *arg);
static int include (Dwarf_Off macoff, ptrdiff_t token);
static Dwarf *dbg;
static ptrdiff_t cuoff;
static void *thread_work (void *arg __attribute__ ((unused)))
{
Dwarf_Die cudie_mem, *cudie = dwarf_offdie (dbg, cuoff, &cudie_mem);
for (ptrdiff_t off = DWARF_GETMACROS_START;
(off = dwarf_getmacros (cudie, mac, dbg, off));)
{
if (off != 0)
{
error (EXIT_FAILURE, 0, "dwarf_getmacros: %s",
dwarf_errmsg (dwarf_errno ()));
}
}
return NULL;
}
static int include (Dwarf_Off macoff, ptrdiff_t token)
{
while ((token = dwarf_getmacros_off (dbg, macoff, mac, dbg, token)) != 0)
{
if (token == -1)
{
puts (dwarf_errmsg (dwarf_errno ()));
return 1;
}
}
return 0;
}
static int
mac (Dwarf_Macro *macro, void *arg __attribute__ ((unused)))
{
unsigned int opcode;
dwarf_macro_opcode (macro, &opcode);
switch (opcode)
{
case DW_MACRO_import:
{
Dwarf_Attribute at;
if (dwarf_macro_param (macro, 0, &at) != 0)
return DWARF_CB_ABORT;
Dwarf_Word w;
if (dwarf_formudata (&at, &w) != 0)
return DWARF_CB_ABORT;
if (include (w, DWARF_GETMACROS_START) != 0)
return DWARF_CB_ABORT;
break;
}
case DW_MACRO_start_file:
{
Dwarf_Files *files;
size_t nfiles;
if (dwarf_macro_getsrcfiles (dbg, macro, &files, &nfiles) < 0)
{
printf ("dwarf_macro_getsrcfiles: %s\n",
dwarf_errmsg (dwarf_errno ()));
return DWARF_CB_ABORT;
}
Dwarf_Word w = 0;
if (dwarf_macro_param2 (macro, &w, NULL) != 0)
return DWARF_CB_ABORT;
if (dwarf_filesrc (files, (size_t) w, NULL, NULL) == NULL)
return DWARF_CB_ABORT;
break;
}
case DW_MACINFO_define:
case DW_MACRO_define_strp:
{
const char *value;
if (dwarf_macro_param2(macro, NULL, &value) != 0)
return DWARF_CB_ABORT;
break;
}
case DW_MACINFO_undef:
case DW_MACRO_undef_strp:
break;
default:
{
size_t paramcnt;
if (dwarf_macro_getparamcnt (macro, ¶mcnt) != 0)
return DWARF_CB_ABORT;
break;
}
}
return DWARF_CB_OK;
}
int main (int argc, char *argv[])
{
assert (argc == 3);
const char *name = argv[1];
int fd = open (name, O_RDONLY);
dbg = dwarf_begin (fd, DWARF_C_READ);
cuoff = strtol (argv[2], NULL, 0);
int num_threads = 4;
pthread_t threads[num_threads];
for (int i = 0; i < num_threads; i++)
{
if (pthread_create (&threads[i], NULL, thread_work, NULL) != 0)
{
perror ("Failed to create thread");
for (int j = 0; j < i; j++)
pthread_cancel (threads[j]);
dwarf_end (dbg);
close (fd);
return 1;
}
}
for (int i = 0; i < num_threads; i++)
{
if (pthread_join (threads[i], NULL) != 0)
{
perror ("Failed to join thread");
}
}
dwarf_end (dbg);
close (fd);
return 0;
}
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