[Qemu-devel] [PATCH 08/12 v8] target-tilegx: Add helper features for linux-user

[Chen Gang]

For supporting linux-user system call, tilegx need support exception
helper features for it.

Signed-off-by: Chen Gang <address@hidden>
---
 target-tilegx/helper.c | 31 +++++++++++++++++++++++++++++++
 target-tilegx/helper.h |  1 +
 2 files changed, 32 insertions(+)
 create mode 100644 target-tilegx/helper.c
 create mode 100644 target-tilegx/helper.h

diff --git a/target-tilegx/helper.c b/target-tilegx/helper.c
new file mode 100644
index 0000000..ffac2b9
--- /dev/null
+++ b/target-tilegx/helper.c
@@ -0,0 +1,31 @@
+/*
+ * QEMU TILE-Gx helpers
+ *
+ *  Copyright (c) 2015 Chen Gang
+ *
+ * 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 2.1 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/lgpl-2.1.html>
+ */
+
+#include "cpu.h"
+#include "qemu-common.h"
+#include "exec/helper-proto.h"
+
+void helper_exception(CPUTLGState *env, uint32_t excp)
+{
+    CPUState *cs = CPU(tilegx_env_get_cpu(env));
+
+    cs->exception_index = excp;
+    cpu_loop_exit(cs);
+}
diff --git a/target-tilegx/helper.h b/target-tilegx/helper.h
new file mode 100644
index 0000000..36d1cd9
--- /dev/null
+++ b/target-tilegx/helper.h
@@ -0,0 +1 @@
+DEF_HELPER_2(exception, noreturn, env, i32)
-- 
1.9.3