GDB serial and backtrace support.
* 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. * include/grub/backtrace.h: Likewise. * include/grub/gdb.h: Likewise. * include/grub/i386/gdb.h: Likewise. Also-By: Vladimir Serbinenko <phcoder@gmail.com>
This commit is contained in:
Lubomir Kundrak
Vladimir 'phcoder' Serbinenko
commit
ff27c3dd5d
13 changed files with 1052 additions and 29 deletions
26
include/grub/backtrace.h
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26
include/grub/backtrace.h
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2009 Free Software Foundation, Inc.
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*
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* GRUB 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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*
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* GRUB is distributed in the hope that it will be useful,
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* but 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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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_BACKTRACE_HEADER
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#define GRUB_BACKTRACE_HEADER 1
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void grub_backtrace (void);
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void grub_backtrace_pointer (void *ptr);
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void grub_backtrace_print_address (void *addr);
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#endif
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39
include/grub/gdb.h
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include/grub/gdb.h
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/* gdb.h - Various definitions for the remote GDB stub */
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/*
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* Copyright (C) 2006 Lubomir Kundrak
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but 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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*
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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, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef GRUB_GDB_HEADER
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#define GRUB_GDB_HEADER 1
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#define SIGFPE 8
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#define SIGTRAP 5
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#define SIGABRT 6
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#define SIGSEGV 11
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#define SIGILL 4
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#define SIGUSR1 30
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/* We probably don't need other ones. */
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struct grub_serial_port;
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extern struct grub_serial_port *grub_gdb_port;
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void grub_gdb_breakpoint (void);
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int grub_gdb_trap2sig (int);
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#endif /* ! GRUB_GDB_HEADER */
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78
include/grub/i386/gdb.h
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78
include/grub/i386/gdb.h
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/* i386/gdb.h - i386 specific definitions for the remote GDB stub */
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/*
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* Copyright (C) 2006 Lubomir Kundrak
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but 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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*
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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, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef GRUB_GDB_CPU_HEADER
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#define GRUB_GDB_CPU_HEADER 1
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#define GRUB_GDB_LAST_TRAP 31
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/* You may have to edit the bottom of machdep.S when adjusting
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GRUB_GDB_LAST_TRAP. */
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#define GRUB_MACHINE_NR_REGS 16
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#define EAX 0
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#define ECX 1
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#define EDX 2
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#define EBX 3
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#define ESP 4
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#define EBP 5
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#define ESI 6
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#define EDI 7
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#define EIP 8
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#define EFLAGS 9
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#define CS 10
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#define SS 11
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#define DS 12
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#define ES 13
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#define FS 14
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#define GS 15
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#define PC EIP
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#define FP EBP
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#define SP ESP
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#define PS EFLAGS
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#ifndef ASM_FILE
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#include <grub/gdb.h>
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#define GRUB_CPU_TRAP_GATE 15
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struct grub_cpu_interrupt_gate
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{
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grub_uint16_t offset_lo;
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grub_uint16_t selector;
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grub_uint8_t unused;
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grub_uint8_t gate;
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grub_uint16_t offset_hi;
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} __attribute__ ((packed));
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struct grub_cpu_idt_descriptor
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{
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grub_uint16_t limit;
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grub_uint32_t base;
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} __attribute__ ((packed));
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extern void (*grub_gdb_trapvec[]) (void);
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void grub_gdb_idtinit (void);
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void grub_gdb_idtrestore (void);
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void grub_gdb_trap (int trap_no);
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#endif /* ! ASM */
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#endif /* ! GRUB_GDB_CPU_HEADER */
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