mirror of
https://codeberg.org/ziglang/zig.git
synced 2026-04-28 11:27:09 +03:00
Alex Rønne Petersen
66d97267c7
This excludes all headers in /usr/include/dev because that directory is bonkers huge (18M). We can add these on an as-needed basis.
52 lines
1.6 KiB
C
Vendored
52 lines
1.6 KiB
C
Vendored
/* $OpenBSD: codepatch.h,v 1.3 2023/07/31 17:10:31 bluhm Exp $ */
|
|
/*
|
|
* Copyright (c) 2014-2015 Stefan Fritsch <sf@sfritsch.de>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#ifndef _MACHINE_CODEPATCH_H_
|
|
#define _MACHINE_CODEPATCH_H_
|
|
|
|
#include <machine/param.h>
|
|
|
|
#ifndef _LOCORE
|
|
|
|
void *codepatch_maprw(vaddr_t *nva, vaddr_t dest);
|
|
void codepatch_unmaprw(vaddr_t nva);
|
|
void codepatch_fill_nop(void *caddr, uint16_t len);
|
|
void codepatch_nop(uint16_t tag);
|
|
void codepatch_replace(uint16_t tag, const void *code, size_t len);
|
|
void codepatch_call(uint16_t tag, void *func);
|
|
|
|
#endif /* !_LOCORE */
|
|
|
|
/*
|
|
* Mark the start of some code snippet to be patched.
|
|
*/
|
|
#define CODEPATCH_START 998:
|
|
/*
|
|
* Mark the end of some code to be patched, and assign the given tag.
|
|
*/
|
|
#define CODEPATCH_END(tag) \
|
|
999: \
|
|
.section .codepatch, "a" ;\
|
|
.int 998b ;\
|
|
.short (999b - 998b) ;\
|
|
.short tag ;\
|
|
.previous
|
|
|
|
#define CPTAG_STAC 1
|
|
#define CPTAG_CLAC 2
|
|
|
|
#endif /* _MACHINE_CODEPATCH_H_ */ |