| 0,0 → 1,87 |
|---|
| /* |
| * Copyright (C) 2005 Jakub Jermar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef __sparc64_CONTEXT_H__ |
| #define __sparc64_CONTEXT_H__ |
| |
| #ifndef __sparc64_TYPES_H__ |
| # include <arch/types.h> |
| #endif |
| |
| #ifndef __ALIGN_H__ |
| # include <align.h> |
| #endif |
| |
| /** According to SPARC Compliance Definition, every stack frame is 16-byte aligned. */ |
| #define STACK_ALIGNMENT 16 |
| |
| #define STACK_ITEM_SIZE sizeof(__u64) |
| |
| /** |
| * 16-extended-word save area for %i[0-7] and %l[0-7] registers. |
| */ |
| #define SAVE_AREA (16*STACK_ITEM_SIZE) |
| #define SP_DELTA SAVE_AREA |
| |
| /** |
| * By convention, the actual top of the stack is %sp + BIAS. |
| */ |
| #define BIAS 2047 |
| |
| #ifdef context_set |
| #undef context_set |
| #endif |
| |
| #define context_set(c, _pc, stack, size) \ |
| (c)->pc = ((__address) _pc) - 8; \ |
| (c)->sp = ((__address) stack) + ALIGN((size), STACK_ALIGNMENT) - (BIAS + SP_DELTA) |
| |
| /* |
| * Only save registers that must be preserved across |
| * function calls. |
| */ |
| struct context { |
| __u64 l0; |
| __u64 l1; |
| __u64 l2; |
| __u64 l3; |
| __u64 l4; |
| __u64 l5; |
| __u64 l6; |
| __u64 l7; |
| __u64 i1; |
| __u64 i2; |
| __u64 i3; |
| __u64 i4; |
| __u64 i5; |
| __address sp; /* %i6 */ |
| __address pc; /* %i7 */ |
| ipl_t ipl; |
| }; |
| |
| #endif |