/* * Alpha 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 alpha_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n) { AlphaCPU *cpu = ALPHA_CPU(cs); CPUAlphaState *env = &cpu->env; uint64_t val; CPU_DoubleU d; switch (n) { case 0 ... 30: val = cpu_alpha_load_gr(env, n); break; case 32 ... 62: d.d = env->fir[n - 32]; val = d.ll; break; case 63: val = cpu_alpha_load_fpcr(env); break; case 64: val = env->pc; break; case 66: val = env->unique; break; case 31: case 65: /* 31 really is the zero register; 65 is unassigned in the gdb protocol, but is still required to occupy 8 bytes. */ val = 0; break; default: return 0; } return gdb_get_regl(mem_buf, val); } int alpha_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) { AlphaCPU *cpu = ALPHA_CPU(cs); CPUAlphaState *env = &cpu->env; target_ulong tmp = ldtul_p(mem_buf); CPU_DoubleU d; switch (n) { case 0 ... 30: cpu_alpha_store_gr(env, n, tmp); break; case 32 ... 62: d.ll = tmp; env->fir[n - 32] = d.d; break; case 63: cpu_alpha_store_fpcr(env, tmp); break; case 64: env->pc = tmp; break; case 66: env->unique = tmp; break; case 31: case 65: /* 31 really is the zero register; 65 is unassigned in the gdb protocol, but is still required to occupy 8 bytes. */ break; default: return 0; } return 8; }