0c2f51a7d2
This moves the i386 vDSO sources into arch/x86/vdso/vdso32/, a new directory. This patch is a pure renaming, but paves the way for consolidating the vDSO build logic. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
54 lines
1.3 KiB
ArmAsm
54 lines
1.3 KiB
ArmAsm
/*
|
|
* Code for the vsyscall page. This version uses the old int $0x80 method.
|
|
*
|
|
* NOTE:
|
|
* 1) __kernel_vsyscall _must_ be first in this page.
|
|
* 2) there are alignment constraints on this stub, see vsyscall-sigreturn.S
|
|
* for details.
|
|
*/
|
|
|
|
.text
|
|
.globl __kernel_vsyscall
|
|
.type __kernel_vsyscall,@function
|
|
__kernel_vsyscall:
|
|
.LSTART_vsyscall:
|
|
int $0x80
|
|
ret
|
|
.LEND_vsyscall:
|
|
.size __kernel_vsyscall,.-.LSTART_vsyscall
|
|
.previous
|
|
|
|
.section .eh_frame,"a",@progbits
|
|
.LSTARTFRAMEDLSI:
|
|
.long .LENDCIEDLSI-.LSTARTCIEDLSI
|
|
.LSTARTCIEDLSI:
|
|
.long 0 /* CIE ID */
|
|
.byte 1 /* Version number */
|
|
.string "zR" /* NUL-terminated augmentation string */
|
|
.uleb128 1 /* Code alignment factor */
|
|
.sleb128 -4 /* Data alignment factor */
|
|
.byte 8 /* Return address register column */
|
|
.uleb128 1 /* Augmentation value length */
|
|
.byte 0x1b /* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
|
|
.byte 0x0c /* DW_CFA_def_cfa */
|
|
.uleb128 4
|
|
.uleb128 4
|
|
.byte 0x88 /* DW_CFA_offset, column 0x8 */
|
|
.uleb128 1
|
|
.align 4
|
|
.LENDCIEDLSI:
|
|
.long .LENDFDEDLSI-.LSTARTFDEDLSI /* Length FDE */
|
|
.LSTARTFDEDLSI:
|
|
.long .LSTARTFDEDLSI-.LSTARTFRAMEDLSI /* CIE pointer */
|
|
.long .LSTART_vsyscall-. /* PC-relative start address */
|
|
.long .LEND_vsyscall-.LSTART_vsyscall
|
|
.uleb128 0
|
|
.align 4
|
|
.LENDFDEDLSI:
|
|
.previous
|
|
|
|
/*
|
|
* Get the common code for the sigreturn entry points.
|
|
*/
|
|
#include "sigreturn.S"
|