15583e514e
This is userspace code and doesn't play by the normal kernel rules. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Borislav Petkov <bp@suse.de>
40 lines
600 B
ArmAsm
40 lines
600 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* vsyscall_emu_64.S: Vsyscall emulation page
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*
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* Copyright (c) 2011 Andy Lutomirski
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*/
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#include <linux/linkage.h>
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#include <asm/irq_vectors.h>
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#include <asm/page_types.h>
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#include <asm/unistd_64.h>
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__PAGE_ALIGNED_DATA
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.globl __vsyscall_page
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.balign PAGE_SIZE, 0xcc
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.type __vsyscall_page, @object
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__vsyscall_page:
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mov $__NR_gettimeofday, %rax
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syscall
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ret
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int3
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.balign 1024, 0xcc
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mov $__NR_time, %rax
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syscall
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ret
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int3
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.balign 1024, 0xcc
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mov $__NR_getcpu, %rax
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syscall
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ret
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int3
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.balign 4096, 0xcc
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.size __vsyscall_page, 4096
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