| 1 | /* Copyright (C) 2000-2022 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 | mov r4, r3 // syscall number |
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| 22 | mov r5, r4 // p1 |
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| 23 | mov r6, r5 // p2 |
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| 24 | mov r7, r6 // p3 |
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| 25 | mov.l @r15, r7 // p4 |
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| 26 | mov.l @(4,r15), r0 // p5 |
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| 27 | mov.l @(8,r15), r1 // p6 |
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| 28 | mov.l @(12,r15), r2 // p7 |
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| 29 | trapa #0x17 |
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| 30 | mov r0, r1 |
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| 31 | mov #-12, r2 |
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| 32 | shad r2, r1 |
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| 33 | not r1, r1 // r1=0 means r0 = -1 to -4095 |
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| 34 | tst r1, r1 // i.e. error in linux |
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| 35 | bf .Lpseudo_end |
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| 36 | SYSCALL_ERROR_HANDLER |
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| 37 | .Lpseudo_end: |
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| 38 | rts |
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| 39 | nop |
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| 40 | |
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| 41 | PSEUDO_END (__syscall) |
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| 42 | |
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| 43 | weak_alias (__syscall, syscall) |
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| 44 | |
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