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sys-elf_x86_64.S
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sys-elf_x86_64.S
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/*
* libhugetlbfs - Easy use of Linux hugepages
* Copyright (C) 2007 David Gibson, IBM Corporation.
*
* Based on code from the GNU C Library, Copyright Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
.text
.globl direct_syscall
direct_syscall:
mov %rdi,%rax
mov %rsi,%rdi
mov %rdx,%rsi
mov %rcx,%rdx
mov %r8,%r10
mov %r9,%r8
mov 0x8(%rsp),%r9
syscall
retq
#if defined(__linux__) && defined(__ELF__)
.section .note.GNU-stack,"",%progbits
#endif