diff options
| author |   Al Viro <viro@zeniv.linux.org.uk> | 2016-12-25 14:00:03 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2017-03-28 18:23:23 -0400 |
| commit | 46583939b98d5a3f13ac71eed9518c6b7a80ae7e (patch) | |
| tree | 6881eb219e240b9c9a07c29361a6f2caf170677d | |
| parent | generic ...copy_..._user primitives (diff) | |
| download | linux-dev-46583939b98d5a3f13ac71eed9518c6b7a80ae7e.tar.xz linux-dev-46583939b98d5a3f13ac71eed9518c6b7a80ae7e.zip | |
arm64: add extable.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | arch/arm64/include/asm/extable.h | 25 | ||||
| -rw-r--r-- | arch/arm64/include/asm/uaccess.h | 23 |
2 files changed, 26 insertions, 22 deletions
diff --git a/arch/arm64/include/asm/extable.h b/arch/arm64/include/asm/extable.h new file mode 100644 index 000000000000..42f50f15a44c --- /dev/null +++ b/arch/arm64/include/asm/extable.h @@ -0,0 +1,25 @@ +#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 diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h index 7c514e10a08e..5a9d49c71937 100644 --- a/arch/arm64/include/asm/uaccess.h +++ b/arch/arm64/include/asm/uaccess.h @@ -33,28 +33,7 @@ #include <asm/ptrace.h> #include <asm/memory.h> #include <asm/compiler.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); +#include <asm/extable.h> #define KERNEL_DS (-1UL) #define get_ds() (KERNEL_DS) |