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/* Cancellable syscall wrapper. Linux/s390x version.
Copyright (C) 2023 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>
/* long int __syscall_cancel_arch (int *cancelhandling,
__syscall_arg_t nr,
__syscall_arg_t arg1,
__syscall_arg_t arg2,
__syscall_arg_t arg3,
__syscall_arg_t arg4,
__syscall_arg_t arg5,
__syscall_arg_t arg6) */
ENTRY (__syscall_cancel_arch)
stmg %r6,%r7,48(%r15)
cfi_offset (%r6, -112)
cfi_offset (%r7, -104)
.globl __syscall_cancel_arch_start
__syscall_cancel_arch_start:
/* if (*cancelhandling & CANCELED_BITMASK)
__syscall_do_cancel() */
tm 3(%r2),TCB_CANCELED_BITMASK
jne 1f
/* Issue a 6 argument syscall, the nr [%r1] being the syscall
number. */
lgr %r1,%r3
lgr %r2,%r4
lgr %r3,%r5
lgr %r4,%r6
lmg %r5,%r7,160(%r15)
svc 0
.globl __syscall_cancel_arch_end
__syscall_cancel_arch_end:
lmg %r6,%r7,48(%r15)
cfi_remember_state
cfi_restore (%r7)
cfi_restore (%r6)
br %r14
1:
cfi_restore_state
jg __syscall_do_cancel
END (__syscall_cancel_arch)
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