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Kirill Smelkov
linux
Commits
46583939
Commit
46583939
authored
Dec 25, 2016
by
Al Viro
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arm64: add extable.h
Signed-off-by:
Al Viro
<
viro@zeniv.linux.org.uk
>
parent
d597580d
Changes
2
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26 additions
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22 deletions
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-22
arch/arm64/include/asm/extable.h
arch/arm64/include/asm/extable.h
+25
-0
arch/arm64/include/asm/uaccess.h
arch/arm64/include/asm/uaccess.h
+1
-22
No files found.
arch/arm64/include/asm/extable.h
0 → 100644
View file @
46583939
#ifndef __ASM_EXTABLE_H
#define __ASM_EXTABLE_H
/*
* The exception table consists of pairs of relative offsets: the first
* is the relative offset to an instruction that is allowed to fault,
* and the second is the relative offset at which the program should
* continue. No registers are modified, so it is entirely up to the
* continuation code to figure out what to do.
*
* All the routines below use bits of fixup code that are out of line
* with the main instruction path. This means when everything is well,
* we don't even have to jump over them. Further, they do not intrude
* on our cache or tlb entries.
*/
struct
exception_table_entry
{
int
insn
,
fixup
;
};
#define ARCH_HAS_RELATIVE_EXTABLE
extern
int
fixup_exception
(
struct
pt_regs
*
regs
);
#endif
arch/arm64/include/asm/uaccess.h
View file @
46583939
...
@@ -33,28 +33,7 @@
...
@@ -33,28 +33,7 @@
#include <asm/ptrace.h>
#include <asm/ptrace.h>
#include <asm/memory.h>
#include <asm/memory.h>
#include <asm/compiler.h>
#include <asm/compiler.h>
#include <asm/extable.h>
/*
* The exception table consists of pairs of relative offsets: the first
* is the relative offset to an instruction that is allowed to fault,
* and the second is the relative offset at which the program should
* continue. No registers are modified, so it is entirely up to the
* continuation code to figure out what to do.
*
* All the routines below use bits of fixup code that are out of line
* with the main instruction path. This means when everything is well,
* we don't even have to jump over them. Further, they do not intrude
* on our cache or tlb entries.
*/
struct
exception_table_entry
{
int
insn
,
fixup
;
};
#define ARCH_HAS_RELATIVE_EXTABLE
extern
int
fixup_exception
(
struct
pt_regs
*
regs
);
#define KERNEL_DS (-1UL)
#define KERNEL_DS (-1UL)
#define get_ds() (KERNEL_DS)
#define get_ds() (KERNEL_DS)
...
...
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