mirror of
https://sourceware.org/git/glibc.git
synced 2025-05-31 15:01:17 +03:00
75 lines
1.8 KiB
ArmAsm
75 lines
1.8 KiB
ArmAsm
/* Cancellable syscall wrapper. Linux/sparc64 version.
|
|
Copyright (C) 2023-2025 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <sysdep.h>
|
|
#include <descr-const.h>
|
|
|
|
.register %g2, #scratch
|
|
|
|
/* long int __syscall_cancel_arch (int *cancelhandling,
|
|
long int nr,
|
|
long int arg1,
|
|
long int arg2,
|
|
long int arg3,
|
|
long int arg4,
|
|
long int arg5,
|
|
long int arg6) */
|
|
|
|
ENTRY (__syscall_cancel_arch)
|
|
save %sp, -176, %sp
|
|
|
|
cfi_window_save
|
|
cfi_register (%o7, %i7)
|
|
cfi_def_cfa_register (%fp)
|
|
|
|
.globl __syscall_cancel_arch_start
|
|
__syscall_cancel_arch_start:
|
|
|
|
/* if (*cancelhandling & CANCELED_BITMASK)
|
|
__syscall_do_cancel() */
|
|
lduw [%i0], %g2
|
|
andcc %g2, TCB_CANCELED_BITMASK, %g0
|
|
bne,pn %xcc, 2f
|
|
/* Issue a 6 argument syscall. */
|
|
mov %i2, %o0
|
|
mov %i3, %o1
|
|
mov %i4, %o2
|
|
mov %i5, %o3
|
|
ldx [%fp + STACK_BIAS + 176], %o4
|
|
ldx [%fp + STACK_BIAS + 184], %o5
|
|
mov %i1, %g1
|
|
ta 0x6d
|
|
|
|
.global __syscall_cancel_arch_end
|
|
__syscall_cancel_arch_end:
|
|
|
|
bcc,pt %xcc, 1f
|
|
nop
|
|
sub %g0, %o0, %o0
|
|
1:
|
|
mov %o0, %i0
|
|
return %i7+8
|
|
nop
|
|
|
|
2:
|
|
call __syscall_do_cancel, 0
|
|
nop
|
|
nop
|
|
|
|
END (__syscall_cancel_arch)
|