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GDB serial and backtrace support.

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* grub-core/kern/i386/realmode.S (real_to_prot): Reload IDT.
	(prot_to_real): Likewise.
	* grub-core/kern/i386/int.S (grub_bios_interrupt): Remove IDT reload.
	* grub-core/Makefile.core.def (backtrace): New module.
	(gdb): Likewise.
	* grub-core/gdb/cstub.c: New file.
	* grub-core/gdb/gdb.c: Likewise.
	* grub-core/gdb/i386/idt.c: Likewise.
	* grub-core/gdb/i386/machdep.S: Likewise.
	* grub-core/gdb/i386/signal.c: Likewise.
	* grub-core/lib/i386/backtrace.c: Likewise.
	* grub-core/lib/backtrace.c: Likewise.
	* include/grub/backtrace.h: Likewise.
	* include/grub/gdb.h: Likewise.
	* include/grub/i386/gdb.h: Likewise.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2012-02-26 20:31:03 +01:00
parent ff27c3dd5d
commit 4cebfa1a87
2 changed files with 49 additions and 0 deletions
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@ -14,6 +14,7 @@
* grub-core/gdb/i386/machdep.S: Likewise.
* grub-core/gdb/i386/signal.c: Likewise.
* grub-core/lib/i386/backtrace.c: Likewise.
* grub-core/lib/backtrace.c: Likewise.
* include/grub/backtrace.h: Likewise.
* include/grub/gdb.h: Likewise.
* include/grub/i386/gdb.h: Likewise.

48
grub-core/lib/backtrace.c Normal file
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@ -0,0 +1,48 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2009 Free Software Foundation, Inc.
*
* GRUB 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.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/misc.h>
#include <grub/command.h>
#include <grub/err.h>
#include <grub/dl.h>
#include <grub/mm.h>
#include <grub/term.h>
#include <grub/backtrace.h>
GRUB_MOD_LICENSE ("GPLv3+");
void
grub_backtrace_print_address (void *addr)
{
grub_dl_t mod;
FOR_DL_MODULES (mod)
{
grub_dl_segment_t segment;
for (segment = mod->segment; segment; segment = segment->next)
if (segment->addr <= addr && (grub_uint8_t *) segment->addr
+ segment->size > (grub_uint8_t *) addr)
{
grub_printf ("%s.%x+%" PRIxGRUB_SIZE, mod->name, segment->section,
(grub_uint8_t *) addr - (grub_uint8_t *) segment->addr);
return;
}
}
grub_printf ("%p", addr);
}