aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorJia Liu <proljc@gmail.com>2012-07-20 15:50:42 +0800
committerBlue Swirl <blauwirbel@gmail.com>2012-07-27 21:12:58 +0000
commit1d7d4034690a4dd292b214a788298a2cacd09fb2 (patch)
tree38c8069c4d421fb10161499c56dfbe57aede215b
parentb6a71ef7e01bcac7aeb47d8de4082704fbc6479c (diff)
downloadqemu-arm-1d7d4034690a4dd292b214a788298a2cacd09fb2.tar.gz
target-or32: Add exception support
Add OpenRISC exception support. Signed-off-by: Jia Liu <proljc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
-rw-r--r--target-openrisc/Makefile.objs4
-rw-r--r--target-openrisc/exception.c27
-rw-r--r--target-openrisc/exception.h28
-rw-r--r--target-openrisc/exception_helper.c29
-rw-r--r--target-openrisc/helper.h3
5 files changed, 89 insertions, 2 deletions
diff --git a/target-openrisc/Makefile.objs b/target-openrisc/Makefile.objs
index 74c4b8d3c9..52d0158c61 100644
--- a/target-openrisc/Makefile.objs
+++ b/target-openrisc/Makefile.objs
@@ -1,3 +1,3 @@
obj-$(CONFIG_SOFTMMU) += machine.o
-obj-y += cpu.o interrupt.o mmu.o translate.o
-obj-y += interrupt_helper.o mmu_helper.o
+obj-y += cpu.o exception.o interrupt.o mmu.o translate.o
+obj-y += exception_helper.o interrupt_helper.o mmu_helper.o
diff --git a/target-openrisc/exception.c b/target-openrisc/exception.c
new file mode 100644
index 0000000000..58e53c6c98
--- /dev/null
+++ b/target-openrisc/exception.c
@@ -0,0 +1,27 @@
+/*
+ * OpenRISC exception.
+ *
+ * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
+ *
+ * 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 "cpu.h"
+#include "exception.h"
+
+void QEMU_NORETURN raise_exception(OpenRISCCPU *cpu, uint32_t excp)
+{
+ cpu->env.exception_index = excp;
+ cpu_loop_exit(&cpu->env);
+}
diff --git a/target-openrisc/exception.h b/target-openrisc/exception.h
new file mode 100644
index 0000000000..4b64430df1
--- /dev/null
+++ b/target-openrisc/exception.h
@@ -0,0 +1,28 @@
+/*
+ * OpenRISC exception header.
+ *
+ * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
+ *
+ * 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/>.
+ */
+
+#ifndef QEMU_OPENRISC_EXCP_H
+#define QEMU_OPENRISC_EXCP_H
+
+#include "cpu.h"
+#include "qemu-common.h"
+
+void QEMU_NORETURN raise_exception(OpenRISCCPU *cpu, uint32_t excp);
+
+#endif /* QEMU_OPENRISC_EXCP_H */
diff --git a/target-openrisc/exception_helper.c b/target-openrisc/exception_helper.c
new file mode 100644
index 0000000000..dab4148151
--- /dev/null
+++ b/target-openrisc/exception_helper.c
@@ -0,0 +1,29 @@
+/*
+ * OpenRISC exception helper routines
+ *
+ * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
+ *
+ * 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 "cpu.h"
+#include "helper.h"
+#include "exception.h"
+
+void HELPER(exception)(CPUOpenRISCState *env, uint32_t excp)
+{
+ OpenRISCCPU *cpu = OPENRISC_CPU(ENV_GET_CPU(env));
+
+ raise_exception(cpu, excp);
+}
diff --git a/target-openrisc/helper.h b/target-openrisc/helper.h
index 7ced5eaaec..43b23caca8 100644
--- a/target-openrisc/helper.h
+++ b/target-openrisc/helper.h
@@ -19,6 +19,9 @@
#include "def-helper.h"
+/* exception */
+DEF_HELPER_FLAGS_2(exception, 0, void, env, i32)
+
/* interrupt */
DEF_HELPER_FLAGS_1(rfe, 0, void, env)