00001 /* 00002 * Copyright (C) 2003-2004 Jakub Jermar 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions 00007 * are met: 00008 * 00009 * - Redistributions of source code must retain the above copyright 00010 * notice, this list of conditions and the following disclaimer. 00011 * - Redistributions in binary form must reproduce the above copyright 00012 * notice, this list of conditions and the following disclaimer in the 00013 * documentation and/or other materials provided with the distribution. 00014 * - The name of the author may not be used to endorse or promote products 00015 * derived from this software without specific prior written permission. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 00018 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00019 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 00020 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 00021 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 00022 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00023 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00024 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00025 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 00026 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00027 */ 00028 00035 #ifndef __mips32_CONTEXT_H__ 00036 #define __mips32_CONTEXT_H__ 00037 00038 #include <align.h> 00039 #include <arch/stack.h> 00040 00041 /* 00042 * Put one item onto the stack to support get_stack_base() and align it up. 00043 */ 00044 #define SP_DELTA (0 + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT)) 00045 00046 00047 #ifndef __ASM__ 00048 00049 #ifndef __mips32_TYPES_H__ 00050 # include <arch/types.h> 00051 #endif 00052 00053 /* 00054 * Only save registers that must be preserved across 00055 * function calls. 00056 */ 00057 struct context { 00058 __address sp; 00059 __address pc; 00060 00061 __u32 s0; 00062 __u32 s1; 00063 __u32 s2; 00064 __u32 s3; 00065 __u32 s4; 00066 __u32 s5; 00067 __u32 s6; 00068 __u32 s7; 00069 __u32 s8; 00070 __u32 gp; 00071 00072 ipl_t ipl; 00073 }; 00074 00075 #endif /* __ASM__ */ 00076 00077 #endif 00078