1 files changed, 111 insertions, 0 deletions
diff --git a/target/hppa/gdbstub.c b/target/hppa/gdbstub.c
new file mode 100644
index 0000000..413a5e1
--- /dev/null
+++ b/target/hppa/gdbstub.c
@@ -0,0 +1,111 @@
+/*
+ * HPPA gdb server stub
+ *
+ * Copyright (c) 2016 Richard Henderson <rth@twiddle.net>
+ *
+ * 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"
+
+int hppa_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n)
+{
+    HPPACPU *cpu = HPPA_CPU(cs);
+    CPUHPPAState *env = &cpu->env;
+    target_ulong val;
+
+    switch (n) {
+    case 0:
+        val = cpu_hppa_get_psw(env);
+        break;
+    case 1 ... 31:
+        val = env->gr[n];
+        break;
+    case 32:
+        val = env->sar;
+        break;
+    case 33:
+        val = env->iaoq_f;
+        break;
+    case 35:
+        val = env->iaoq_b;
+        break;
+    case 59:
+        val = env->cr26;
+        break;
+    case 60:
+        val = env->cr27;
+        break;
+    case 64 ... 127:
+        val = extract64(env->fr[(n - 64) / 2], (n & 1 ? 0 : 32), 32);
+        break;
+    default:
+        if (n < 128) {
+            val = 0;
+        } else {
+            return 0;
+        }
+        break;
+    }
+    return gdb_get_regl(mem_buf, val);
+}
+
+int hppa_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
+{
+    HPPACPU *cpu = HPPA_CPU(cs);
+    CPUHPPAState *env = &cpu->env;
+    target_ulong val = ldtul_p(mem_buf);
+
+    switch (n) {
+    case 0:
+        cpu_hppa_put_psw(env, val);
+        break;
+    case 1 ... 31:
+        env->gr[n] = val;
+        break;
+    case 32:
+        env->sar = val;
+        break;
+    case 33:
+        env->iaoq_f = val;
+        break;
+    case 35:
+        env->iaoq_b = val;
+    case 59:
+        env->cr26 = val;
+        break;
+    case 60:
+        env->cr27 = val;
+        break;
+    case 64:
+        env->fr[0] = deposit64(env->fr[0], 32, 32, val);
+        cpu_hppa_loaded_fr0(env);
+        break;
+    case 65 ... 127:
+        {
+            uint64_t *fr = &env->fr[(n - 64) / 2];
+            *fr = deposit64(*fr, val, (n & 1 ? 0 : 32), 32);
+        }
+        break;
+    default:
+        if (n >= 128) {
+            return 0;
+        }
+        break;
+    }
+    return sizeof(target_ulong);
+}