diff options
Diffstat (limited to 'target-m68k/gdbstub.c')
-rw-r--r-- | target-m68k/gdbstub.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/target-m68k/gdbstub.c b/target-m68k/gdbstub.c new file mode 100644 index 0000000000..ae8179c016 --- /dev/null +++ b/target-m68k/gdbstub.c @@ -0,0 +1,75 @@ +/* + * m68k 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 "config.h" +#include "qemu-common.h" +#include "exec/gdbstub.h" + +int m68k_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n) +{ + M68kCPU *cpu = M68K_CPU(cs); + CPUM68KState *env = &cpu->env; + + if (n < 8) { + /* D0-D7 */ + return gdb_get_reg32(mem_buf, env->dregs[n]); + } else if (n < 16) { + /* A0-A7 */ + return gdb_get_reg32(mem_buf, env->aregs[n - 8]); + } else { + switch (n) { + case 16: + return gdb_get_reg32(mem_buf, env->sr); + case 17: + return gdb_get_reg32(mem_buf, env->pc); + } + } + /* FP registers not included here because they vary between + ColdFire and m68k. Use XML bits for these. */ + return 0; +} + +int m68k_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) +{ + M68kCPU *cpu = M68K_CPU(cs); + CPUM68KState *env = &cpu->env; + uint32_t tmp; + + tmp = ldl_p(mem_buf); + + if (n < 8) { + /* D0-D7 */ + env->dregs[n] = tmp; + } else if (n < 16) { + /* A0-A7 */ + env->aregs[n - 8] = tmp; + } else { + switch (n) { + case 16: + env->sr = tmp; + break; + case 17: + env->pc = tmp; + break; + default: + return 0; + } + } + return 4; +} |