GDB register read and write routines Signed-off-by: Taylor Simpson <tsimp...@quicinc.com> --- target/hexagon/cpu.c | 3 +++ target/hexagon/gdbstub.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 52 insertions(+) create mode 100644 target/hexagon/gdbstub.c
diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c index 7a7fc89..26bf987 100644 --- a/target/hexagon/cpu.c +++ b/target/hexagon/cpu.c @@ -270,6 +270,9 @@ static void hexagon_cpu_class_init(ObjectClass *c, void *data) cc->dump_state = hexagon_dump_state; cc->set_pc = hexagon_cpu_set_pc; cc->synchronize_from_tb = hexagon_cpu_synchronize_from_tb; + cc->gdb_core_xml_file = "hexagon-core.xml"; + cc->gdb_read_register = hexagon_gdb_read_register; + cc->gdb_write_register = hexagon_gdb_write_register; cc->gdb_num_core_regs = TOTAL_PER_THREAD_REGS; cc->gdb_stop_before_watchpoint = true; cc->disas_set_info = hexagon_cpu_disas_set_info; diff --git a/target/hexagon/gdbstub.c b/target/hexagon/gdbstub.c new file mode 100644 index 0000000..f07cb9a --- /dev/null +++ b/target/hexagon/gdbstub.c @@ -0,0 +1,49 @@ +/* + * Copyright (c) 2019 Qualcomm Innovation Center, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include "qemu/osdep.h" +#include "qemu-common.h" +#include "exec/gdbstub.h" +#include "cpu.h" +#include "internal.h" + +int hexagon_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n) +{ + HexagonCPU *cpu = HEXAGON_CPU(cs); + CPUHexagonState *env = &cpu->env; + + if (n < TOTAL_PER_THREAD_REGS) { + return gdb_get_regl(mem_buf, env->gpr[n]); + } + + g_assert_not_reached(); + return 0; +} + +int hexagon_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) +{ + HexagonCPU *cpu = HEXAGON_CPU(cs); + CPUHexagonState *env = &cpu->env; + + if (n < TOTAL_PER_THREAD_REGS) { + env->gpr[n] = ldtul_p(mem_buf); + return sizeof(target_ulong); + } + + g_assert_not_reached(); + return 0; +} -- 2.7.4