diff options
Diffstat (limited to 'target/alpha/gdbstub.c')
-rw-r--r-- | target/alpha/gdbstub.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/target/alpha/gdbstub.c b/target/alpha/gdbstub.c new file mode 100644 index 0000000000..d64bcccfa0 --- /dev/null +++ b/target/alpha/gdbstub.c @@ -0,0 +1,94 @@ +/* + * 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; +} |