1 /* 2 * MicroBlaze gdb server stub 3 * 4 * Copyright (c) 2003-2005 Fabrice Bellard 5 * Copyright (c) 2013 SUSE LINUX Products GmbH 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 19 */ 20 #include "qemu/osdep.h" 21 #include "cpu.h" 22 #include "exec/gdbstub.h" 23 24 int mb_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n) 25 { 26 MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs); 27 CPUMBState *env = &cpu->env; 28 29 if (n < 32) { 30 return gdb_get_reg32(mem_buf, env->regs[n]); 31 } else { 32 return gdb_get_reg32(mem_buf, env->sregs[n - 32]); 33 } 34 return 0; 35 } 36 37 int mb_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) 38 { 39 MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs); 40 CPUClass *cc = CPU_GET_CLASS(cs); 41 CPUMBState *env = &cpu->env; 42 uint32_t tmp; 43 44 if (n > cc->gdb_num_core_regs) { 45 return 0; 46 } 47 48 tmp = ldl_p(mem_buf); 49 50 if (n < 32) { 51 env->regs[n] = tmp; 52 } else { 53 env->sregs[n - 32] = tmp; 54 } 55 return 4; 56 } 57