| /* asmPrv.h - Private x86 assembler header */ |
| |
| /* |
| * Copyright (c) 2012-2014 Wind River Systems, Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef __INCsysX86AsmPrvh |
| #define __INCsysX86AsmPrvh |
| |
| #include <arch/x86/asm.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* Macro to generate name of stub from name of handler */ |
| #define MK_STUB_NAME(h) h##Stub |
| |
| /** |
| * @brief Assembler version of the NANO_CPU_INT_REGISTER macro. |
| * |
| * See arch.h for details |
| * |
| * @param handler Routine to be connected |
| * @param irq IRQ number |
| * @param priority IRQ priority |
| * @param vector Interrupt Vector |
| * @param dpl Descriptor Privilege Level |
| */ |
| #define NANO_CPU_INT_REGISTER_ASM(handler, irq, priority, vector, dpl) \ |
| .section ".intList"; \ |
| MK_ISR_NAME(handler) : .long MK_STUB_NAME(handler); \ |
| .long irq; \ |
| .long priority; \ |
| .long vector; \ |
| .long dpl; |
| |
| #define NANO_CPU_EXC_CONNECT_CODE(h) \ |
| call _ExcEnt; \ |
| call h; \ |
| jmp _ExcExit; |
| |
| #define NANO_CPU_EXC_CONNECT_NO_ERR_CODE(h) \ |
| call _ExcEntNoErr; \ |
| call h; \ |
| jmp _ExcExit; |
| |
| /** |
| * |
| * @brief To generate and register an exception stub |
| * |
| * Generates an exception stub for the handler, @a h. It is registered |
| * on the vector given by @a v with the privilege level @a d; @a d should always |
| * be 0. |
| * |
| * Use this version of the macro if the processor pushes an error code for the |
| * given exception. |
| */ |
| |
| #define NANO_CPU_EXC_CONNECT(h, v, d) \ |
| NANO_CPU_INT_REGISTER_ASM(h, -1, -1, v, d) GTEXT(MK_STUB_NAME(h)); \ |
| SECTION_FUNC(TEXT, MK_STUB_NAME(h)) NANO_CPU_EXC_CONNECT_CODE(h) |
| |
| /** |
| * |
| * @brief To generate and register an exception stub |
| * |
| * Generates an exception stub for the handler, @a h. It is registered |
| * on the vector given by @a v with the privilege level @a d; @a d should always |
| * be 0. |
| * |
| * Use this version of the macro if the processor doesn't push an error code for |
| * the given exception. The created stub pushes a dummy value of 0 to keep the |
| * exception stack frame the same. |
| */ |
| #define NANO_CPU_EXC_CONNECT_NO_ERR(h, v, d) \ |
| NANO_CPU_INT_REGISTER_ASM(h, -1, -1, v, d) GTEXT(MK_STUB_NAME(h)); \ |
| SECTION_FUNC(TEXT, MK_STUB_NAME(h)) \ |
| NANO_CPU_EXC_CONNECT_NO_ERR_CODE(h) |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __INCsysX86AsmPrvh */ |