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bfd49d5558
* sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S: Sign-extend with a single instruction.
43 lines
1.3 KiB
ArmAsm
43 lines
1.3 KiB
ArmAsm
/* Copyright 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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#include <sys/asm.h>
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/* Sign-extend the ioctl number, since the kernel wants it as a
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sign-extended 32-bit value, but our prototype is that of a long. */
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.text
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ENTRY (__ioctl)
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li v0, __NR_ioctl
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sll a1,a1,0
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syscall /* Do the system call. */
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bne a3, zero, L(error)
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ret
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L(error):
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.cpsetup t9, a0, __ioctl
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PTR_LA t9,__syscall_error
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.cprestore
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jr t9
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PSEUDO_END (__ioctl)
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weak_alias (__ioctl, ioctl)
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