/* * 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) { }