GDB register read and write routines
Signed-off-by: Taylor Simpson <tsimp...@quicinc.com>
---
target/hexagon/internal.h | 2 ++
target/hexagon/cpu.c | 2 ++
target/hexagon/gdbstub.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 53 insertions(+)
create mode 100644 target/hexagon/gdbstub.c
diff --git a/target/hexagon/internal.h b/target/hexagon/internal.h
index d3e4412..acddd91 100644
--- a/target/hexagon/internal.h
+++ b/target/hexagon/internal.h
@@ -37,4 +37,6 @@ extern const char * const
hexagon_regnames[TOTAL_PER_THREAD_REGS];
extern void init_genptr(void);
+extern int hexagon_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg);
+extern int hexagon_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
#endif
diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c
index d812913..e2c879c 100644
--- a/target/hexagon/cpu.c
+++ b/target/hexagon/cpu.c
@@ -284,6 +284,8 @@ 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_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..a2ea528
--- /dev/null
+++ b/target/hexagon/gdbstub.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright(c) 2019-2020 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, GByteArray *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
