source: trunk/libs/newlib/src/libgloss/sparc_leon/asm-leon/asmmacro.h @ 643

Last change on this file since 643 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc

File size: 1.9 KB
Line 
1/*
2 * Copyright (c) 2011 Aeroflex Gaisler
3 *
4 * BSD license:
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25
26#ifndef _INCLUDE_LEON_ASMMACRO_h
27#define _INCLUDE_LEON_ASMMACRO_h
28
29#include <asm-leon/leonstack.h>
30
31/* All trap entry points _must_ begin with this macro or else you
32 * lose.  It makes sure the kernel has a proper window so that
33 * c-code can be called.
34 */
35#define SAVE_ALL_HEAD \
36        sethi   %hi(leonbare_trapsetup), %l4; \
37        jmpl    %l4 + %lo(leonbare_trapsetup), %l6;
38#define SAVE_ALL \
39        SAVE_ALL_HEAD \
40         nop;
41
42#define SAVE_ALL_FAST(l) \
43        set     l-8, %l6; \
44        sethi   %hi(leonbare_trapsetup_fast), %l4; \
45        jmpl    %l4 + %lo(leonbare_trapsetup_fast), %g0; \
46         nop;
47
48/* All traps low-level code here must end with this macro. */
49#define RESTORE_ALL b leonbare_trapreturn; clr %l6;
50#define RESTORE_ALL_FAST b leonbare_trapreturn_fast; clr %l6;
51
52#define WRITE_PAUSE nop; nop; nop;
53
54#endif /* !_INCLUDE_LEON_STACK_h */
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