| 1 | /* Copyright (C) 1999-2022 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | #include <sysdep.h> |
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| 19 | |
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| 20 | ENTRY(syscall) |
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| 21 | /* We are called like so: |
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| 22 | {out0,out1,...,out6} registers -> {NR, arg1, ..., arg6} |
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| 23 | Shift the register window so that {out1...out6} are available |
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| 24 | in {out0...out5} like the kernel syscall handler expects. */ |
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| 25 | alloc r2=ar.pfs,1,0,8,0 |
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| 26 | mov r15=r32 /* syscall number */ |
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| 27 | break __IA64_BREAK_SYSCALL |
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| 28 | ;; |
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| 29 | cmp.ne p6,p0=-1,r10 /* r10 = -1 on error */ |
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| 30 | (p6) ret |
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| 31 | br.cond.spnt.few __syscall_error |
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| 32 | PSEUDO_END(syscall) |
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| 33 | |
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