df22a121b2
Fix syscall generator to add cfi directives and add the directives for all arm64 assembler. Bug: 15138290 Change-Id: I7f0e4a16c141ac624e5276917a3a1ed45778e057
61 lines
2.1 KiB
ArmAsm
61 lines
2.1 KiB
ArmAsm
/*
|
|
* Copyright (C) 2013 The Android Open Source Project
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <private/bionic_asm.h>
|
|
|
|
ENTRY(syscall)
|
|
/* create AAPCS frame pointer */
|
|
stp x29, x30, [sp, #-16]!
|
|
.cfi_def_cfa_offset 16
|
|
.cfi_rel_offset x29, 0
|
|
.cfi_rel_offset x30, 8
|
|
mov x29, sp
|
|
|
|
/* Move syscall No. from x0 to x8 */
|
|
mov x8, x0
|
|
/* Move syscall parameters from x1 thru x6 to x0 thru x5 */
|
|
mov x0, x1
|
|
mov x1, x2
|
|
mov x2, x3
|
|
mov x3, x4
|
|
mov x4, x5
|
|
mov x5, x6
|
|
svc #0
|
|
|
|
ldp x29, x30, [sp], #16
|
|
.cfi_def_cfa_offset 0
|
|
.cfi_restore x29
|
|
.cfi_restore x30
|
|
|
|
/* check if syscall returned successfully */
|
|
cmn x0, #(MAX_ERRNO + 1)
|
|
cneg x0, x0, hi
|
|
b.hi __set_errno
|
|
|
|
ret
|
|
END(syscall)
|