|
@@ -0,0 +1,125 @@
|
|
|
|
+/*
|
|
|
|
+ * CRIS gdb server stub
|
|
|
|
+ *
|
|
|
|
+ * Copyright (c) 2003-2005 Fabrice Bellard
|
|
|
|
+ * Copyright (c) 2013 SUSE LINUX Products GmbH
|
|
|
|
+ *
|
|
|
|
+ * 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/>.
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+static int
|
|
|
|
+read_register_crisv10(CPUCRISState *env, uint8_t *mem_buf, int n)
|
|
|
|
+{
|
|
|
|
+ if (n < 15) {
|
|
|
|
+ GET_REG32(env->regs[n]);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (n == 15) {
|
|
|
|
+ GET_REG32(env->pc);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (n < 32) {
|
|
|
|
+ switch (n) {
|
|
|
|
+ case 16:
|
|
|
|
+ GET_REG8(env->pregs[n - 16]);
|
|
|
|
+ case 17:
|
|
|
|
+ GET_REG8(env->pregs[n - 16]);
|
|
|
|
+ case 20:
|
|
|
|
+ case 21:
|
|
|
|
+ GET_REG16(env->pregs[n - 16]);
|
|
|
|
+ default:
|
|
|
|
+ if (n >= 23) {
|
|
|
|
+ GET_REG32(env->pregs[n - 16]);
|
|
|
|
+ }
|
|
|
|
+ break;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ return 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int cpu_gdb_read_register(CPUCRISState *env, uint8_t *mem_buf, int n)
|
|
|
|
+{
|
|
|
|
+ uint8_t srs;
|
|
|
|
+
|
|
|
|
+ if (env->pregs[PR_VR] < 32) {
|
|
|
|
+ return read_register_crisv10(env, mem_buf, n);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ srs = env->pregs[PR_SRS];
|
|
|
|
+ if (n < 16) {
|
|
|
|
+ GET_REG32(env->regs[n]);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (n >= 21 && n < 32) {
|
|
|
|
+ GET_REG32(env->pregs[n - 16]);
|
|
|
|
+ }
|
|
|
|
+ if (n >= 33 && n < 49) {
|
|
|
|
+ GET_REG32(env->sregs[srs][n - 33]);
|
|
|
|
+ }
|
|
|
|
+ switch (n) {
|
|
|
|
+ case 16:
|
|
|
|
+ GET_REG8(env->pregs[0]);
|
|
|
|
+ case 17:
|
|
|
|
+ GET_REG8(env->pregs[1]);
|
|
|
|
+ case 18:
|
|
|
|
+ GET_REG32(env->pregs[2]);
|
|
|
|
+ case 19:
|
|
|
|
+ GET_REG8(srs);
|
|
|
|
+ case 20:
|
|
|
|
+ GET_REG16(env->pregs[4]);
|
|
|
|
+ case 32:
|
|
|
|
+ GET_REG32(env->pc);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int cpu_gdb_write_register(CPUCRISState *env, uint8_t *mem_buf, int n)
|
|
|
|
+{
|
|
|
|
+ uint32_t tmp;
|
|
|
|
+
|
|
|
|
+ if (n > 49) {
|
|
|
|
+ return 0;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ tmp = ldl_p(mem_buf);
|
|
|
|
+
|
|
|
|
+ if (n < 16) {
|
|
|
|
+ env->regs[n] = tmp;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (n >= 21 && n < 32) {
|
|
|
|
+ env->pregs[n - 16] = tmp;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /* FIXME: Should support function regs be writable? */
|
|
|
|
+ switch (n) {
|
|
|
|
+ case 16:
|
|
|
|
+ return 1;
|
|
|
|
+ case 17:
|
|
|
|
+ return 1;
|
|
|
|
+ case 18:
|
|
|
|
+ env->pregs[PR_PID] = tmp;
|
|
|
|
+ break;
|
|
|
|
+ case 19:
|
|
|
|
+ return 1;
|
|
|
|
+ case 20:
|
|
|
|
+ return 2;
|
|
|
|
+ case 32:
|
|
|
|
+ env->pc = tmp;
|
|
|
|
+ break;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return 4;
|
|
|
|
+}
|