vaseboot/VasEBoot-core/lib/backtrace.c

71 lines
2.0 KiB
C

/*
* VasEBoot -- GRand Unified Bootloader
* Copyright (C) 2009 Free Software Foundation, Inc.
*
* VasEBoot 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.
*
* VasEBoot 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 VasEBoot. If not, see <http://www.gnu.org/licenses/>.
*/
#include <VasEBoot/misc.h>
#include <VasEBoot/command.h>
#include <VasEBoot/err.h>
#include <VasEBoot/dl.h>
#include <VasEBoot/mm.h>
#include <VasEBoot/term.h>
#include <VasEBoot/backtrace.h>
VasEBoot_MOD_LICENSE ("GPLv3+");
void
VasEBoot_backtrace_print_address (void *addr)
{
VasEBoot_dl_t mod;
FOR_DL_MODULES (mod)
{
VasEBoot_dl_segment_t segment;
for (segment = mod->segment; segment; segment = segment->next)
if (segment->addr <= addr && (VasEBoot_uint8_t *) segment->addr
+ segment->size > (VasEBoot_uint8_t *) addr)
{
VasEBoot_printf ("%s.%x+%" PRIxVasEBoot_SIZE, mod->name, segment->section,
(VasEBoot_size_t) ((VasEBoot_uint8_t *) addr - (VasEBoot_uint8_t *) segment->addr));
return;
}
}
VasEBoot_printf ("%p", addr);
}
static VasEBoot_err_t
VasEBoot_cmd_backtrace (VasEBoot_command_t cmd __attribute__ ((unused)),
int argc __attribute__ ((unused)),
char **args __attribute__ ((unused)))
{
VasEBoot_backtrace ();
return 0;
}
static VasEBoot_command_t cmd;
VasEBoot_MOD_INIT(backtrace)
{
cmd = VasEBoot_register_command ("backtrace", VasEBoot_cmd_backtrace,
0, N_("Print backtrace."));
}
VasEBoot_MOD_FINI(backtrace)
{
VasEBoot_unregister_command (cmd);
}