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-rw-r--r--target/xtensa/gdbstub.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/target/xtensa/gdbstub.c b/target/xtensa/gdbstub.c
index fa5469a4ef..da131ae8cc 100644
--- a/target/xtensa/gdbstub.c
+++ b/target/xtensa/gdbstub.c
@@ -58,7 +58,10 @@ int xtensa_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n)
case 8:
return gdb_get_reg64(mem_buf, float64_val(env->fregs[i].f64));
default:
- return 0;
+ qemu_log_mask(LOG_UNIMP, "%s from reg %d of unsupported size %d\n",
+ __func__, n, reg->size);
+ memset(mem_buf, 0, reg->size);
+ return reg->size;
}
case 8: /*a*/
@@ -67,6 +70,8 @@ int xtensa_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n)
default:
qemu_log_mask(LOG_UNIMP, "%s from reg %d of unsupported type %d\n",
__func__, n, reg->type);
+ memset(mem_buf, 0, reg->size);
+ return reg->size;
return 0;
}
}
@@ -111,7 +116,9 @@ int xtensa_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
env->fregs[reg->targno & 0x0f].f64 = make_float64(tmp);
return 8;
default:
- return 0;
+ qemu_log_mask(LOG_UNIMP, "%s to reg %d of unsupported size %d\n",
+ __func__, n, reg->size);
+ return reg->size;
}
case 8: /*a*/
@@ -121,7 +128,7 @@ int xtensa_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
default:
qemu_log_mask(LOG_UNIMP, "%s to reg %d of unsupported type %d\n",
__func__, n, reg->type);
- return 0;
+ return reg->size;
}
return 4;