1 files changed, 24 insertions, 21 deletions

diff --git a/target/loongarch/gdbstub.c b/target/loongarch/gdbstub.c
index 7ca245e..471eda2 100644
--- a/target/loongarch/gdbstub.c
+++ b/target/loongarch/gdbstub.c
@@ -34,26 +34,28 @@ void write_fcc(CPULoongArchState *env, uint64_t val)
 int loongarch_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
 {
     CPULoongArchState *env = cpu_env(cs);
-    uint64_t val;
-
-    if (0 <= n && n < 32) {
-        val = env->gpr[n];
-    } else if (n == 32) {
-        /* orig_a0 */
-        val = 0;
-    } else if (n == 33) {
-        val = env->pc;
-    } else if (n == 34) {
-        val = env->CSR_BADV;
-    }
 
     if (0 <= n && n <= 34) {
+        uint64_t val;
+
+        if (n < 32) {
+            val = env->gpr[n];
+        } else if (n == 32) {
+            /* orig_a0 */
+            val = 0;
+        } else if (n == 33) {
+            val = env->pc;
+        } else /* if (n == 34) */ {
+            val = env->CSR_BADV;
+        }
+
         if (is_la64(env)) {
             return gdb_get_reg64(mem_buf, val);
         } else {
             return gdb_get_reg32(mem_buf, val);
         }
     }
+
     return 0;
 }
 
@@ -61,23 +63,24 @@ int loongarch_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
 {
     CPULoongArchState *env = cpu_env(cs);
     target_ulong tmp;
-    int read_length;
     int length = 0;
 
+    if (n < 0 || n > 34) {
+        return 0;
+    }
+
     if (is_la64(env)) {
-        tmp = ldq_p(mem_buf);
-        read_length = 8;
+        tmp = ldq_le_p(mem_buf);
+        length = 8;
     } else {
-        tmp = ldl_p(mem_buf);
-        read_length = 4;
+        tmp = ldl_le_p(mem_buf);
+        length = 4;
     }
 
     if (0 <= n && n < 32) {
         env->gpr[n] = tmp;
-        length = read_length;
     } else if (n == 33) {
         set_pc(env, tmp);
-        length = read_length;
     }
     return length;
 }
@@ -104,13 +107,13 @@ static int loongarch_gdb_set_fpu(CPUState *cs, uint8_t *mem_buf, int n)
     int length = 0;
 
     if (0 <= n && n < 32) {
-        env->fpr[n].vreg.D(0) = ldq_p(mem_buf);
+        env->fpr[n].vreg.D(0) = ldq_le_p(mem_buf);
         length = 8;
     } else if (32 <= n && n < 40) {
         env->cf[n - 32] = ldub_p(mem_buf);
         length = 1;
     } else if (n == 40) {
-        env->fcsr0 = ldl_p(mem_buf);
+        env->fcsr0 = ldl_le_p(mem_buf);
         length = 4;
     }
     return length;