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Last change
on this file since 8624d1f was cb7be8f, checked in by Jiří Zárevúcky <zarevucky.jiri@…>, 3 years ago |
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Update headers in .S files that incorrectly use #-style comments
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Property mode
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100644
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File size:
673 bytes
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| 1 | /*
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| 2 | * SPDX-FileCopyrightText: 2006 Ondrej Palkovsky
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| 3 | *
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| 4 | * SPDX-License-Identifier: BSD-3-Clause
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| 5 | */
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| 6 |
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| 7 | #include <abi/asmtool.h>
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| 8 |
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| 9 | .text
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| 10 |
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| 11 | ## Make a system call.
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| 12 | #
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| 13 | # @param rdi First argument.
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| 14 | # @param rsi Second argument.
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| 15 | # @param rdx Third argument.
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| 16 | # @param rcx Fourth argument.
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| 17 | # @param r8 Fifth argument.
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| 18 | # @param r9 Sixth argument.
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| 19 | # @param 8(%rsp) Syscall number.
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| 20 | #
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| 21 | # @return The return value will be stored in RAX.
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| 22 | #
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| 23 | FUNCTION_BEGIN(__syscall)
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| 24 | #
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| 25 | # Move the syscall number into RAX.
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| 26 | movslq 8(%rsp), %rax
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| 27 |
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| 28 | #
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| 29 | # Save RCX, the 4th argument, aside because RCX gets rewritten by the
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| 30 | # SYSCALL instruction.
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| 31 | #
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| 32 | movq %rcx, %r10
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| 33 | syscall
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| 34 | ret
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| 35 | FUNCTION_END(__syscall)
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| 36 |
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