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72 lines
2.4 KiB
ArmAsm
72 lines
2.4 KiB
ArmAsm
/* Copyright (C) 2001 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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/* 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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.LFB1:
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movq %rdi, %rax /* Syscall number -> rax. */
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movq %rsi, %rdi /* shift arg1 - arg5. */
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movq %rdx, %rsi
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movq %rcx, %rdx
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movq %r8, %r10
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movq %r9, %r8
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syscall /* Do the system call. */
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cmpq $-4095, %rax /* Check %rax for error. */
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jae SYSCALL_ERROR_LABEL /* Jump to error handler if error. */
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L(pseudo_end):
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.LFE1:
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ret /* Return to caller. */
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PSEUDO_END (syscall)
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.section .eh_frame,"aw",@progbits
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.Lframe1:
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.long .LECIE1-.LSCIE1 # Length of Common Information Entry
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.LSCIE1:
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.long 0x0 # CIE Identifier Tag
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.byte 0x1 # CIE Version
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.ascii "\0" # CIE Augmentation
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.uleb128 0x1 # CIE Code Alignment Factor
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.sleb128 -8 # CIE Data Alignment Factor
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.byte 0x10 # CIE RA Column
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.byte 0xc # DW_CFA_def_cfa
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.uleb128 0x7
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.uleb128 0x8
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.byte 0x90 # DW_CFA_offset, column 0x10
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.uleb128 0x1
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.align 8
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.LECIE1:
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.LSFDE1:
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.long .LEFDE1-.LASFDE1 # FDE Length
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.LASFDE1:
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.long .LASFDE1-.Lframe1 # FDE CIE offset
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.quad .LFB1 # FDE initial location
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.quad .LFE1-.LFB1 # FDE address range
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.align 8
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.LEFDE1:
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