| 1 | /* Copyright (C) 1995-2022 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 | /* Please consult the file sysdeps/unix/sysv/linux/i386/sysdep.h for |
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| 21 | more information about the value -4095 used below.*/ |
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| 22 | |
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| 23 | .text |
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| 24 | ENTRY (syscall) |
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| 25 | |
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| 26 | PUSHARGS_6 /* Save register contents. */ |
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| 27 | _DOARGS_6(44) /* Load arguments. */ |
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| 28 | movl 20(%esp), %eax /* Load syscall number into %eax. */ |
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| 29 | ENTER_KERNEL /* Do the system call. */ |
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| 30 | POPARGS_6 /* Restore register contents. */ |
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| 31 | cmpl $-4095, %eax /* Check %eax for error. */ |
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| 32 | jae SYSCALL_ERROR_LABEL /* Jump to error handler if error. */ |
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| 33 | ret /* Return to caller. */ |
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| 34 | |
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| 35 | PSEUDO_END (syscall) |
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| 36 | |
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