| /* |
| * Copyright 2014 Google Inc. |
| * |
| * This program 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 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program 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. |
| */ |
| |
| #include <exception.h> |
| #include <gdb.h> |
| #include <libpayload.h> |
| |
| struct gdb_regs |
| { |
| u64 x[32]; |
| struct fp_reg |
| { |
| u64 quad[2]; |
| } __attribute__((packed)) f[32]; |
| u32 fpcr; |
| u32 fpsr; |
| u32 spsr; |
| } __attribute__((packed)); |
| |
| static const u8 type_to_signal[] = { |
| [EXC_SYNC_SP0] = GDB_SIGTRAP, |
| [EXC_IRQ_SP0] = GDB_SIGSEGV, |
| [EXC_FIQ_SP0] = GDB_SIGSEGV, |
| [EXC_SERROR_SP0] = GDB_SIGSEGV, |
| [EXC_SYNC_SPX] = GDB_SIGTRAP, |
| [EXC_IRQ_SPX] = GDB_SIGSEGV, |
| [EXC_FIQ_SPX] = GDB_SIGSEGV, |
| [EXC_SERROR_SPX] = GDB_SIGSEGV, |
| [EXC_SYNC_ELX_64] = GDB_SIGTRAP, |
| [EXC_IRQ_ELX_64] = GDB_SIGSEGV, |
| [EXC_FIQ_ELX_64] = GDB_SIGSEGV, |
| [EXC_SERROR_ELX_64] = GDB_SIGSEGV, |
| [EXC_SYNC_ELX_32] = GDB_SIGTRAP, |
| [EXC_IRQ_ELX_32] = GDB_SIGSEGV, |
| [EXC_FIQ_ELX_32] = GDB_SIGSEGV, |
| [EXC_SERROR_ELX_32] = GDB_SIGSEGV |
| }; |
| |
| static int gdb_exception_hook(u32 type) |
| { |
| return -1; |
| } |
| |
| void gdb_arch_init(void) |
| { |
| exception_install_hook(&gdb_exception_hook); |
| } |
| |
| void gdb_arch_enter(void) |
| { |
| } |
| |
| int gdb_arch_set_single_step(int on) |
| { |
| /* GDB seems to only need this on x86, ARM works fine without it. */ |
| return -1; |
| } |
| |
| void gdb_arch_encode_regs(struct gdb_message *message) |
| { |
| } |
| |
| void gdb_arch_decode_regs(int offset, struct gdb_message *message) |
| { |
| } |