alistair23-linux/arch/x86/entry/vsyscall/vsyscall_emu_64.S
Ingo Molnar 00398a0018 x86/asm/entry: Move the vsyscall code to arch/x86/entry/vsyscall/
The vsyscall code is entry code too, so move it to arch/x86/entry/vsyscall/.

Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-06-04 07:37:37 +02:00

38 lines
597 B
ArmAsm

/*
* vsyscall_emu_64.S: Vsyscall emulation page
*
* Copyright (c) 2011 Andy Lutomirski
*
* Subject to the GNU General Public License, version 2
*/
#include <linux/linkage.h>
#include <asm/irq_vectors.h>
#include <asm/page_types.h>
#include <asm/unistd_64.h>
__PAGE_ALIGNED_DATA
.globl __vsyscall_page
.balign PAGE_SIZE, 0xcc
.type __vsyscall_page, @object
__vsyscall_page:
mov $__NR_gettimeofday, %rax
syscall
ret
.balign 1024, 0xcc
mov $__NR_time, %rax
syscall
ret
.balign 1024, 0xcc
mov $__NR_getcpu, %rax
syscall
ret
.balign 4096, 0xcc
.size __vsyscall_page, 4096