/* * OpenRISC 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 "qemu-common.h" #include "cpu.h" #include "exec/gdbstub.h" int openrisc_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n) { OpenRISCCPU *cpu = OPENRISC_CPU(cs); CPUOpenRISCState *env = &cpu->env; if (n < 32) { return gdb_get_reg32(mem_buf, env->gpr[n]); } else { switch (n) { case 32: /* PPC */ return gdb_get_reg32(mem_buf, env->ppc); case 33: /* NPC */ return gdb_get_reg32(mem_buf, env->npc); case 34: /* SR */ return gdb_get_reg32(mem_buf, env->sr); default: break; } } return 0; } int openrisc_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) { OpenRISCCPU *cpu = OPENRISC_CPU(cs); CPUClass *cc = CPU_GET_CLASS(cs); CPUOpenRISCState *env = &cpu->env; uint32_t tmp; if (n > cc->gdb_num_core_regs) { return 0; } tmp = ldl_p(mem_buf); if (n < 32) { env->gpr[n] = tmp; } else { switch (n) { case 32: /* PPC */ env->ppc = tmp; break; case 33: /* NPC */ env->npc = tmp; break; case 34: /* SR */ env->sr = tmp; break; default: break; } } return 4; }