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54 lines
1.5 KiB
ArmAsm
54 lines
1.5 KiB
ArmAsm
/* Copyright (C) 2001, 2002, 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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/* Please consult the file sysdeps/unix/sysv/linux/x86-64/sysdep.h for
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more information about the value -4095 used below. */
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/* Usage: long syscall (syscall_number, arg1, arg2, arg3, arg4, arg5)
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We need to do some arg shifting, the syscall_number will be in
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rax. */
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.text
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ENTRY (syscall)
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move v0, a0 /* Syscall number -> v0 */
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move a0, a1 /* shift arg1 - arg7. */
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move a1, a2
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move a2, a3
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move a3, a4
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move a4, a5
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move a5, a6
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move a6, a7
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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, syscall
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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 (syscall)
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