| /* |
| * LM32 gdb server stub |
| * |
| * Copyright (c) 2003-2005 Fabrice Bellard |
| * Copyright (c) 2013 SUSE LINUX Products GmbH |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| */ |
| #include "qemu/osdep.h" |
| #include "cpu.h" |
| #include "exec/gdbstub.h" |
| #include "hw/lm32/lm32_pic.h" |
| |
| int lm32_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n) |
| { |
| LM32CPU *cpu = LM32_CPU(cs); |
| CPULM32State *env = &cpu->env; |
| |
| if (n < 32) { |
| return gdb_get_reg32(mem_buf, env->regs[n]); |
| } else { |
| switch (n) { |
| case 32: |
| return gdb_get_reg32(mem_buf, env->pc); |
| /* FIXME: put in right exception ID */ |
| case 33: |
| return gdb_get_reg32(mem_buf, 0); |
| case 34: |
| return gdb_get_reg32(mem_buf, env->eba); |
| case 35: |
| return gdb_get_reg32(mem_buf, env->deba); |
| case 36: |
| return gdb_get_reg32(mem_buf, env->ie); |
| case 37: |
| return gdb_get_reg32(mem_buf, lm32_pic_get_im(env->pic_state)); |
| case 38: |
| return gdb_get_reg32(mem_buf, lm32_pic_get_ip(env->pic_state)); |
| } |
| } |
| return 0; |
| } |
| |
| int lm32_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) |
| { |
| LM32CPU *cpu = LM32_CPU(cs); |
| CPUClass *cc = CPU_GET_CLASS(cs); |
| CPULM32State *env = &cpu->env; |
| uint32_t tmp; |
| |
| if (n > cc->gdb_num_core_regs) { |
| return 0; |
| } |
| |
| tmp = ldl_p(mem_buf); |
| |
| if (n < 32) { |
| env->regs[n] = tmp; |
| } else { |
| switch (n) { |
| case 32: |
| env->pc = tmp; |
| break; |
| case 34: |
| env->eba = tmp; |
| break; |
| case 35: |
| env->deba = tmp; |
| break; |
| case 36: |
| env->ie = tmp; |
| break; |
| case 37: |
| lm32_pic_set_im(env->pic_state, tmp); |
| break; |
| case 38: |
| lm32_pic_set_ip(env->pic_state, tmp); |
| break; |
| } |
| } |
| return 4; |
| } |