diff options
Diffstat (limited to 'sys/arch/amd64/include/codepatch.h')
| -rw-r--r-- | sys/arch/amd64/include/codepatch.h | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/sys/arch/amd64/include/codepatch.h b/sys/arch/amd64/include/codepatch.h index 1fc008bffe1..a5bfc304e1f 100644 --- a/sys/arch/amd64/include/codepatch.h +++ b/sys/arch/amd64/include/codepatch.h @@ -1,4 +1,4 @@ -/* $OpenBSD: codepatch.h,v 1.6 2018/07/12 14:11:11 guenther Exp $ */ +/* $OpenBSD: codepatch.h,v 1.7 2018/07/13 08:30:34 sf Exp $ */ /* * Copyright (c) 2014-2015 Stefan Fritsch <sf@sfritsch.de> * @@ -22,12 +22,16 @@ #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, void *code, size_t len); -void codepatch_call(uint16_t tag, void *func); +/* code in this section will be unmapped after boot */ +#define __cptext __attribute__((section(".cptext"))) + +__cptext void *codepatch_maprw(vaddr_t *nva, vaddr_t dest); +__cptext void codepatch_unmaprw(vaddr_t nva); +__cptext void codepatch_fill_nop(void *caddr, uint16_t len); +__cptext void codepatch_nop(uint16_t tag); +__cptext void codepatch_replace(uint16_t tag, void *code, size_t len); +__cptext void codepatch_call(uint16_t tag, void *func); +void codepatch_disable(void); #endif /* !_LOCORE */ |