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-rw-r--r--target/alpha/gdbstub.c94
1 files changed, 94 insertions, 0 deletions
diff --git a/target/alpha/gdbstub.c b/target/alpha/gdbstub.c
new file mode 100644
index 0000000000..d64bcccfa0
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+++ b/target/alpha/gdbstub.c
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+/*
+ * Alpha 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/>.
+ */
+#include "qemu/osdep.h"
+#include "qemu-common.h"
+#include "cpu.h"
+#include "exec/gdbstub.h"
+
+int alpha_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n)
+{
+ AlphaCPU *cpu = ALPHA_CPU(cs);
+ CPUAlphaState *env = &cpu->env;
+ uint64_t val;
+ CPU_DoubleU d;
+
+ switch (n) {
+ case 0 ... 30:
+ val = cpu_alpha_load_gr(env, n);
+ break;
+ case 32 ... 62:
+ d.d = env->fir[n - 32];
+ val = d.ll;
+ break;
+ case 63:
+ val = cpu_alpha_load_fpcr(env);
+ break;
+ case 64:
+ val = env->pc;
+ break;
+ case 66:
+ val = env->unique;
+ break;
+ case 31:
+ case 65:
+ /* 31 really is the zero register; 65 is unassigned in the
+ gdb protocol, but is still required to occupy 8 bytes. */
+ val = 0;
+ break;
+ default:
+ return 0;
+ }
+ return gdb_get_regl(mem_buf, val);
+}
+
+int alpha_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
+{
+ AlphaCPU *cpu = ALPHA_CPU(cs);
+ CPUAlphaState *env = &cpu->env;
+ target_ulong tmp = ldtul_p(mem_buf);
+ CPU_DoubleU d;
+
+ switch (n) {
+ case 0 ... 30:
+ cpu_alpha_store_gr(env, n, tmp);
+ break;
+ case 32 ... 62:
+ d.ll = tmp;
+ env->fir[n - 32] = d.d;
+ break;
+ case 63:
+ cpu_alpha_store_fpcr(env, tmp);
+ break;
+ case 64:
+ env->pc = tmp;
+ break;
+ case 66:
+ env->unique = tmp;
+ break;
+ case 31:
+ case 65:
+ /* 31 really is the zero register; 65 is unassigned in the
+ gdb protocol, but is still required to occupy 8 bytes. */
+ break;
+ default:
+ return 0;
+ }
+ return 8;
+}