Add OpenRISC exception support. Signed-off-by: Jia Liu <pro...@gmail.com> --- target-openrisc/Makefile.objs | 4 ++-- target-openrisc/excp.c | 27 +++++++++++++++++++++++++++ target-openrisc/excp.h | 28 ++++++++++++++++++++++++++++ target-openrisc/excp_helper.c | 27 +++++++++++++++++++++++++++ target-openrisc/helper.h | 3 +++ 5 files changed, 87 insertions(+), 2 deletions(-) create mode 100644 target-openrisc/excp.c create mode 100644 target-openrisc/excp.h create mode 100644 target-openrisc/excp_helper.c
diff --git a/target-openrisc/Makefile.objs b/target-openrisc/Makefile.objs index 65f9391..382190a 100644 --- a/target-openrisc/Makefile.objs +++ b/target-openrisc/Makefile.objs @@ -1,3 +1,3 @@ obj-$(CONFIG_SOFTMMU) += machine.o -obj-y += cpu.o intrpt.o mmu.o translate.o -obj-y += intrpt_helper.o mmu_helper.o +obj-y += cpu.o excp.o intrpt.o mmu.o translate.o +obj-y += excp_helper.o intrpt_helper.o mmu_helper.o diff --git a/target-openrisc/excp.c b/target-openrisc/excp.c new file mode 100644 index 0000000..6d8c5dd --- /dev/null +++ b/target-openrisc/excp.c @@ -0,0 +1,27 @@ +/* + * OpenRISC exception. + * + * Copyright (c) 2011-2012 Jia Liu <pro...@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 "excp.h" + +void QEMU_NORETURN raise_exception(CPUOpenRISCState *env, uint32_t excp) +{ + env->exception_index = excp; + cpu_loop_exit(env); +} diff --git a/target-openrisc/excp.h b/target-openrisc/excp.h new file mode 100644 index 0000000..885203b --- /dev/null +++ b/target-openrisc/excp.h @@ -0,0 +1,28 @@ +/* + * OpenRISC exception header. + * + * Copyright (c) 2011-2012 Jia Liu <pro...@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(CPUOpenRISCState *env, uint32_t excp); + +#endif /* QEMU_OPENRISC_EXCP_H */ diff --git a/target-openrisc/excp_helper.c b/target-openrisc/excp_helper.c new file mode 100644 index 0000000..c7d4110 --- /dev/null +++ b/target-openrisc/excp_helper.c @@ -0,0 +1,27 @@ +/* + * OpenRISC exception helper routines + * + * Copyright (c) 2011-2012 Jia Liu <pro...@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 "excp.h" + +void HELPER(exception)(CPUOpenRISCState *env, uint32_t excp) +{ + raise_exception(env, excp); +} diff --git a/target-openrisc/helper.h b/target-openrisc/helper.h index 16d99b6..4e2a49f 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) -- 1.7.9.5
