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-rw-r--r--target/lm32/gdbstub.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/target/lm32/gdbstub.c b/target/lm32/gdbstub.c
new file mode 100644
index 0000000000..cf929dd392
--- /dev/null
+++ b/target/lm32/gdbstub.c
@@ -0,0 +1,93 @@
+/*
+ * LM32 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"
+#include "hw/lm32/lm32_pic.h"
+
+int lm32_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n)
+{
+ LM32CPU *cpu = LM32_CPU(cs);
+ CPULM32State *env = &cpu->env;
+
+ if (n < 32) {
+ return gdb_get_reg32(mem_buf, env->regs[n]);
+ } else {
+ switch (n) {
+ case 32:
+ return gdb_get_reg32(mem_buf, env->pc);
+ /* FIXME: put in right exception ID */
+ case 33:
+ return gdb_get_reg32(mem_buf, 0);
+ case 34:
+ return gdb_get_reg32(mem_buf, env->eba);
+ case 35:
+ return gdb_get_reg32(mem_buf, env->deba);
+ case 36:
+ return gdb_get_reg32(mem_buf, env->ie);
+ case 37:
+ return gdb_get_reg32(mem_buf, lm32_pic_get_im(env->pic_state));
+ case 38:
+ return gdb_get_reg32(mem_buf, lm32_pic_get_ip(env->pic_state));
+ }
+ }
+ return 0;
+}
+
+int lm32_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
+{
+ LM32CPU *cpu = LM32_CPU(cs);
+ CPUClass *cc = CPU_GET_CLASS(cs);
+ CPULM32State *env = &cpu->env;
+ uint32_t tmp;
+
+ if (n > cc->gdb_num_core_regs) {
+ return 0;
+ }
+
+ tmp = ldl_p(mem_buf);
+
+ if (n < 32) {
+ env->regs[n] = tmp;
+ } else {
+ switch (n) {
+ case 32:
+ env->pc = tmp;
+ break;
+ case 34:
+ env->eba = tmp;
+ break;
+ case 35:
+ env->deba = tmp;
+ break;
+ case 36:
+ env->ie = tmp;
+ break;
+ case 37:
+ lm32_pic_set_im(env->pic_state, tmp);
+ break;
+ case 38:
+ lm32_pic_set_ip(env->pic_state, tmp);
+ break;
+ }
+ }
+ return 4;
+}