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arm64: add EXPORT_SYMBOL_NOKASAN()

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So that we can export symbols directly from assembly files, let's make
use of the generic <asm/export.h>. We have a few symbols that we'll want
to conditionally export for !KASAN kernel builds, so we add a helper for
that in <asm/assembler.h>.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Mark Rutland 2018-12-07 18:08:16 +00:00 committed by Will Deacon
parent 03ef055fd3
commit 386b3c7bda
1 changed files with 9 additions and 0 deletions
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9
arch/arm64/include/asm/assembler.h
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@ -23,6 +23,8 @@
#ifndef __ASM_ASSEMBLER_H
#define __ASM_ASSEMBLER_H
#include <asm-generic/export.h>
#include <asm/asm-offsets.h>
#include <asm/cpufeature.h>
#include <asm/debug-monitors.h>
@ -490,6 +492,13 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU
#else
#define NOKPROBE(x)
#endif
#ifdef CONFIG_KASAN
#define EXPORT_SYMBOL_NOKASAN(name)
#else
#define EXPORT_SYMBOL_NOKASAN(name) EXPORT_SYMBOL(name)
#endif
/*
* Emit a 64-bit absolute little endian symbol reference in a way that
* ensures that it will be resolved at build time, even when building a