Merge pull request #589 from RinHizakura/mini-gdbstub-update

Update mini-gdbstub with the API changes

Author: jserv

src/emulate.c

@@ -247,7 +247,6 @@ void rv_debug(riscv_t *rv)
     if (!gdbstub_init(&rv->gdbstub, &gdbstub_ops,
                       (arch_info_t){
                           .reg_num = 33,
-                          .reg_byte = 4,
                           .target_desc = TARGET_RV32,
                       },
                       GDBSTUB_COMM)) {

src/gdbstub.c

@@ -16,31 +16,36 @@
 #include "riscv.h"
 #include "riscv_private.h"
 
-static int rv_read_reg(void *args, int regno, size_t *data)
+static size_t rv_get_reg_bytes(UNUSED int regno)
+{
+    return 4;
+}
+
+static int rv_read_reg(void *args, int regno, void *data)
 {
     riscv_t *rv = (riscv_t *) args;
 
     if (unlikely(regno > 32))
         return EFAULT;
 
     if (regno == 32)
-        *data = rv_get_pc(rv);
+        *(riscv_word_t *) data = rv_get_pc(rv);
     else
-        *data = rv_get_reg(rv, regno);
+        *(riscv_word_t *) data = rv_get_reg(rv, regno);
 
     return 0;
 }
 
-static int rv_write_reg(void *args, int regno, size_t data)
+static int rv_write_reg(void *args, int regno, void *data)
 {
     if (unlikely(regno > 32))
         return EFAULT;
 
     riscv_t *rv = (riscv_t *) args;
     if (regno == 32)
-        rv_set_pc(rv, data);
+        rv_set_pc(rv, *(riscv_word_t *) data);
     else
-        rv_set_reg(rv, regno, data);
+        rv_set_reg(rv, regno, *(riscv_word_t *) data);
 
     return 0;
 }
@@ -132,6 +137,7 @@ static void rv_on_interrupt(void *args)
 }
 
 const struct target_ops gdbstub_ops = {
+    .get_reg_bytes = rv_get_reg_bytes,
     .read_reg = rv_read_reg,
     .write_reg = rv_write_reg,
     .read_mem = rv_read_mem,