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35 lines
1.2 KiB
Diff
35 lines
1.2 KiB
Diff
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From c623b33b4e9599c6ac5076f7db7369eb9869aa04 Mon Sep 17 00:00:00 2001
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From: Mark Rutland <mark.rutland@arm.com>
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Date: Thu, 8 Jan 2015 11:42:59 +0000
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Subject: arm64: make sys_call_table const
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As with x86, mark the sys_call_table const such that it will be placed
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in the .rodata section. This will cause attempts to modify the table
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(accidental or deliberate) to fail when strict page permissions are in
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place. In the absence of strict page permissions, there should be no
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functional change.
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Signed-off-by: Mark Rutland <mark.rutland@arm.com>
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Acked-by: Will Deacon <will.deacon@arm.com>
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Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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---
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arch/arm64/kernel/sys.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/arch/arm64/kernel/sys.c b/arch/arm64/kernel/sys.c
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index dec351a..75151aa 100644
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--- a/arch/arm64/kernel/sys.c
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+++ b/arch/arm64/kernel/sys.c
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@@ -49,7 +49,7 @@ asmlinkage long sys_rt_sigreturn_wrapper(void);
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* The sys_call_table array must be 4K aligned to be accessible from
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* kernel/entry.S.
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*/
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-void *sys_call_table[__NR_syscalls] __aligned(4096) = {
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+void * const sys_call_table[__NR_syscalls] __aligned(4096) = {
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[0 ... __NR_syscalls - 1] = sys_ni_syscall,
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#include <asm/unistd.h>
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};
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--
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cgit v1.1
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