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04277e02d7
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
37 lines
1.2 KiB
ArmAsm
37 lines
1.2 KiB
ArmAsm
/* syscall - indirect system call.
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Copyright (C) 2005-2019 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, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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/* We don't need a special syscall to implement syscall(). It won't work
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reliably with 64-bit arguments (but that is true on many modern platforms).
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*/
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ENTRY (syscall)
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mov r2, r4
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mov r4, r5
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mov r5, r6
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mov r6, r7
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ldw r7, 0(sp)
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ldw r8, 4(sp)
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ldw r9, 8(sp)
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trap
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bne r7, zero, SYSCALL_ERROR_LABEL
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ret
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PSEUDO_END (syscall)
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