Furquan Shaikh | f8f7773 | 2014-06-20 00:19:31 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 Google Inc. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License as |
| 6 | * published by the Free Software Foundation; either version 2 of |
| 7 | * the License, or (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but without any warranty; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
Furquan Shaikh | f8f7773 | 2014-06-20 00:19:31 -0700 | [diff] [blame] | 13 | */ |
| 14 | |
| 15 | #include <exception.h> |
| 16 | #include <gdb.h> |
| 17 | #include <libpayload.h> |
| 18 | |
| 19 | struct gdb_regs |
| 20 | { |
| 21 | u64 x[32]; |
| 22 | struct fp_reg |
| 23 | { |
| 24 | u64 quad[2]; |
| 25 | } __attribute__((packed)) f[32]; |
| 26 | u32 fpcr; |
| 27 | u32 fpsr; |
| 28 | u32 spsr; |
| 29 | } __attribute__((packed)); |
| 30 | |
| 31 | static const u8 type_to_signal[] = { |
Furquan Shaikh | 3b1ee03 | 2014-08-27 21:43:36 -0700 | [diff] [blame] | 32 | [EXC_SYNC_SP0] = GDB_SIGTRAP, |
| 33 | [EXC_IRQ_SP0] = GDB_SIGSEGV, |
| 34 | [EXC_FIQ_SP0] = GDB_SIGSEGV, |
| 35 | [EXC_SERROR_SP0] = GDB_SIGSEGV, |
| 36 | [EXC_SYNC_SPX] = GDB_SIGTRAP, |
| 37 | [EXC_IRQ_SPX] = GDB_SIGSEGV, |
| 38 | [EXC_FIQ_SPX] = GDB_SIGSEGV, |
| 39 | [EXC_SERROR_SPX] = GDB_SIGSEGV, |
| 40 | [EXC_SYNC_ELX_64] = GDB_SIGTRAP, |
| 41 | [EXC_IRQ_ELX_64] = GDB_SIGSEGV, |
| 42 | [EXC_FIQ_ELX_64] = GDB_SIGSEGV, |
| 43 | [EXC_SERROR_ELX_64] = GDB_SIGSEGV, |
| 44 | [EXC_SYNC_ELX_32] = GDB_SIGTRAP, |
| 45 | [EXC_IRQ_ELX_32] = GDB_SIGSEGV, |
| 46 | [EXC_FIQ_ELX_32] = GDB_SIGSEGV, |
| 47 | [EXC_SERROR_ELX_32] = GDB_SIGSEGV |
Furquan Shaikh | f8f7773 | 2014-06-20 00:19:31 -0700 | [diff] [blame] | 48 | }; |
| 49 | |
| 50 | static int gdb_exception_hook(u32 type) |
| 51 | { |
| 52 | return -1; |
| 53 | } |
| 54 | |
| 55 | void gdb_arch_init(void) |
| 56 | { |
| 57 | exception_install_hook(&gdb_exception_hook); |
| 58 | } |
| 59 | |
| 60 | void gdb_arch_enter(void) |
| 61 | { |
| 62 | } |
| 63 | |
| 64 | int gdb_arch_set_single_step(int on) |
| 65 | { |
| 66 | /* GDB seems to only need this on x86, ARM works fine without it. */ |
| 67 | return -1; |
| 68 | } |
| 69 | |
| 70 | void gdb_arch_encode_regs(struct gdb_message *message) |
| 71 | { |
| 72 | } |
| 73 | |
| 74 | void gdb_arch_decode_regs(int offset, struct gdb_message *message) |
| 75 | { |
| 76 | } |