diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c
index 62608a5..b153211 100644
--- a/gdbstub/gdbstub.c
+++ b/gdbstub/gdbstub.c
@@ -51,7 +51,6 @@
     gdb_get_reg_cb get_reg;
     gdb_set_reg_cb set_reg;
     const char *xml;
-    struct GDBRegisterState *next;
 } GDBRegisterState;
 
 GDBState gdbserver_state;
@@ -386,7 +385,8 @@
                 xml,
                 g_markup_printf_escaped("<xi:include href=\"%s\"/>",
                                         cc->gdb_core_xml_file));
-            for (r = cpu->gdb_regs; r; r = r->next) {
+            for (guint i = 0; i < cpu->gdb_regs->len; i++) {
+                r = &g_array_index(cpu->gdb_regs, GDBRegisterState, i);
                 g_ptr_array_add(
                     xml,
                     g_markup_printf_escaped("<xi:include href=\"%s\"/>",
@@ -430,7 +430,8 @@
         return cc->gdb_read_register(cpu, buf, reg);
     }
 
-    for (r = cpu->gdb_regs; r; r = r->next) {
+    for (guint i = 0; i < cpu->gdb_regs->len; i++) {
+        r = &g_array_index(cpu->gdb_regs, GDBRegisterState, i);
         if (r->base_reg <= reg && reg < r->base_reg + r->num_regs) {
             return r->get_reg(env, buf, reg - r->base_reg);
         }
@@ -448,7 +449,8 @@
         return cc->gdb_write_register(cpu, mem_buf, reg);
     }
 
-    for (r = cpu->gdb_regs; r; r = r->next) {
+    for (guint i = 0; i < cpu->gdb_regs->len; i++) {
+        r =  &g_array_index(cpu->gdb_regs, GDBRegisterState, i);
         if (r->base_reg <= reg && reg < r->base_reg + r->num_regs) {
             return r->set_reg(env, mem_buf, reg - r->base_reg);
         }
@@ -461,17 +463,23 @@
                               int num_regs, const char *xml, int g_pos)
 {
     GDBRegisterState *s;
-    GDBRegisterState **p;
+    guint i;
 
-    p = &cpu->gdb_regs;
-    while (*p) {
-        /* Check for duplicates.  */
-        if (strcmp((*p)->xml, xml) == 0)
-            return;
-        p = &(*p)->next;
+    if (cpu->gdb_regs) {
+        for (i = 0; i < cpu->gdb_regs->len; i++) {
+            /* Check for duplicates.  */
+            s = &g_array_index(cpu->gdb_regs, GDBRegisterState, i);
+            if (strcmp(s->xml, xml) == 0) {
+                return;
+            }
+        }
+    } else {
+        cpu->gdb_regs = g_array_new(false, false, sizeof(GDBRegisterState));
+        i = 0;
     }
 
-    s = g_new0(GDBRegisterState, 1);
+    g_array_set_size(cpu->gdb_regs, i + 1);
+    s = &g_array_index(cpu->gdb_regs, GDBRegisterState, i);
     s->base_reg = cpu->gdb_num_regs;
     s->num_regs = num_regs;
     s->get_reg = get_reg;
@@ -480,7 +488,6 @@
 
     /* Add to end of list.  */
     cpu->gdb_num_regs += num_regs;
-    *p = s;
     if (g_pos) {
         if (g_pos != s->base_reg) {
             error_report("Error: Bad gdb register numbering for '%s', "