644 lines
19 KiB
C
644 lines
19 KiB
C
/*
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* $Id$
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*
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Copyright (c) 2006-2014 Chung, Hyung-Hwan. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _QSE_LIB_CMN_SYSCALL_H_
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#define _QSE_LIB_CMN_SYSCALL_H_
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#if defined(_WIN32) || defined(__OS2__) || defined(__DOS__)
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# error Do not include this file
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#endif
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/* This file defines unix/linux system calls */
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#if defined(HAVE_SYS_TYPES_H)
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# include <sys/types.h>
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#endif
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#if defined(HAVE_UNISTD_H)
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# include <unistd.h>
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#endif
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#if defined(HAVE_SYS_WAIT_H)
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# include <sys/wait.h>
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#endif
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#if defined(HAVE_SIGNAL_H)
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# include <signal.h>
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#endif
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#if defined(HAVE_ERRNO_H)
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# include <errno.h>
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#endif
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#if defined(HAVE_FCNTL_H)
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# include <fcntl.h>
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#endif
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#if defined(HAVE_TIME_H)
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# include <time.h>
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#endif
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#if defined(HAVE_SYS_TIME_H)
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# include <sys/time.h>
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#endif
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#if defined(HAVE_UTIME_H)
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# include <utime.h>
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#endif
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#if defined(HAVE_SYS_RESOURCE_H)
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# include <sys/resource.h>
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#endif
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#if defined(HAVE_SYS_STAT_H)
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# include <sys/stat.h>
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#endif
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#if defined(HAVE_DIRENT_H)
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# include <dirent.h>
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#endif
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#if defined(QSE_USE_SYSCALL) && defined(HAVE_SYS_SYSCALL_H)
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# include <sys/syscall.h>
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#endif
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#if defined(SYS_open) && defined(QSE_USE_SYSCALL)
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# define QSE_OPEN(path,flags,mode) syscall(SYS_open,path,flags,mode)
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#else
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# define QSE_OPEN(path,flags,mode) open(path,flags,mode)
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#endif
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#if defined(SYS_close) && defined(QSE_USE_SYSCALL)
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# define QSE_CLOSE(handle) syscall(SYS_close,handle)
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#else
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# define QSE_CLOSE(handle) close(handle)
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#endif
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#if defined(SYS_read) && defined(QSE_USE_SYSCALL)
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# define QSE_READ(handle,buf,size) syscall(SYS_read,handle,buf,size)
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#else
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# define QSE_READ(handle,buf,size) read(handle,buf,size)
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#endif
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#if defined(SYS_write) && defined(QSE_USE_SYSCALL)
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# define QSE_WRITE(handle,buf,size) syscall(SYS_write,handle,buf,size)
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#else
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# define QSE_WRITE(handle,buf,size) write(handle,buf,size)
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#endif
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#if !defined(_LP64) && (QSE_SIZEOF_VOID_P<8) && defined(SYS__llseek) && defined(QSE_USE_SYSCALL)
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# define QSE_LLSEEK(handle,hoffset,loffset,out,whence) syscall(SYS__llseek,handle,hoffset,loffset,out,whence)
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#elif !defined(_LP64) && (QSE_SIZEOF_VOID_P<8) && defined(HAVE__LLSEEK) && defined(QSE_USE_SYSCALL)
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# define QSE_LLSEEK(handle,hoffset,loffset,out,whence) _llseek(handle,hoffset,loffset,out,whence)
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#endif
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#if !defined(_LP64) && (QSE_SIZEOF_VOID_P<8) && defined(SYS_lseek64) && defined(QSE_USE_SYSCALL)
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# define QSE_LSEEK(handle,offset,whence) syscall(SYS_lseek64,handle,offset,whence)
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#elif defined(SYS_lseek) && defined(QSE_USE_SYSCALL)
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# define QSE_LSEEK(handle,offset,whence) syscall(SYS_lseek,handle,offset,whence)
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#elif !defined(_LP64) && (QSE_SIZEOF_VOID_P<8) && defined(HAVE_LSEEK64)
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# define QSE_LSEEK(handle,offset,whence) lseek64(handle,offset,whence)
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#else
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# define QSE_LSEEK(handle,offset,whence) lseek(handle,offset,whence)
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#endif
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#if !defined(_LP64) && (QSE_SIZEOF_VOID_P<8) && defined(SYS_fstat64) && defined(QSE_USE_SYSCALL)
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# define QSE_FSTAT(handle,stbuf) syscall(SYS_fstat64,handle,stbuf)
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typedef struct stat64 qse_fstat_t;
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#elif defined(SYS_fstat) && defined(QSE_USE_SYSCALL)
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# define QSE_FSTAT(handle,stbuf) syscall(SYS_fstat,handle,stbuf)
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typedef struct stat qse_fstat_t;
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#elif !defined(_LP64) && (QSE_SIZEOF_VOID_P<8) && defined(HAVE_FSTAT64)
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# define QSE_FSTAT(handle,stbuf) fstat64(handle,stbuf)
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typedef struct stat64 qse_fstat_t;
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#else
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# define QSE_FSTAT(handle,stbuf) fstat(handle,stbuf)
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typedef struct stat qse_fstat_t;
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#endif
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#if !defined(_LP64) && (QSE_SIZEOF_VOID_P<8) && defined(SYS_ftruncate64) && defined(QSE_USE_SYSCALL)
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# define QSE_FTRUNCATE(handle,size) syscall(SYS_ftruncate64,handle,size)
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#elif defined(SYS_ftruncate) && defined(QSE_USE_SYSCALL)
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# define QSE_FTRUNCATE(handle,size) syscall(SYS_ftruncate,handle,size)
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#elif !defined(_LP64) && (QSE_SIZEOF_VOID_P<8) && defined(HAVE_FTRUNCATE64)
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# define QSE_FTRUNCATE(handle,size) ftruncate64(handle,size)
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#else
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# define QSE_FTRUNCATE(handle,size) ftruncate(handle,size)
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#endif
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#if defined(SYS_fchmod) && defined(QSE_USE_SYSCALL)
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# define QSE_FCHMOD(handle,mode) syscall(SYS_fchmod,handle,mode)
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#else
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# define QSE_FCHMOD(handle,mode) fchmod(handle,mode)
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#endif
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#if defined(SYS_fchown) && defined(QSE_USE_SYSCALL)
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# define QSE_FCHOWN(handle,owner,group) syscall(SYS_fchown,handle,owner,group)
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#else
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# define QSE_FCHOWN(handle,owner,group) fchown(handle,owner,group)
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#endif
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#if defined(SYS_fsync) && defined(QSE_USE_SYSCALL)
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# define QSE_FSYNC(handle) syscall(SYS_fsync,handle)
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#else
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# define QSE_FSYNC(handle) fsync(handle)
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#endif
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#if defined(SYS_fcntl) && defined(QSE_USE_SYSCALL)
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# define QSE_FCNTL(handle,cmd,arg) syscall(SYS_fcntl,handle,cmd,arg)
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#else
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# define QSE_FCNTL(handle,cmd,arg) fcntl(handle,cmd,arg)
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#endif
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#if defined(SYS_dup2) && defined(QSE_USE_SYSCALL)
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# define QSE_DUP2(ofd,nfd) syscall(SYS_dup2,ofd,nfd)
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#else
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# define QSE_DUP2(ofd,nfd) dup2(ofd,nfd)
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#endif
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#if defined(SYS_pipe) && defined(QSE_USE_SYSCALL)
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# define QSE_PIPE(pfds) syscall(SYS_pipe,pfds)
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#else
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# define QSE_PIPE(pfds) pipe(pfds)
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#endif
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#if defined(SYS_exit) && defined(QSE_USE_SYSCALL)
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# define QSE_EXIT(code) syscall(SYS_exit,code)
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#else
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# define QSE_EXIT(code) _exit(code)
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#endif
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#if defined(SYS_fork) && defined(QSE_USE_SYSCALL)
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# define QSE_FORK() syscall(SYS_fork)
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#else
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# define QSE_FORK() fork()
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#endif
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#if defined(SYS_vfork) && defined(QSE_USE_SYSCALL)
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# define QSE_VFORK() syscall(SYS_vfork)
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#else
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# define QSE_VFORK() vfork()
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#endif
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#if defined(SYS_execve) && defined(QSE_USE_SYSCALL)
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# define QSE_EXECVE(path,argv,envp) syscall(SYS_execve,path,argv,envp)
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#else
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# define QSE_EXECVE(path,argv,envp) execve(path,argv,envp)
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#endif
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#if defined(SYS_waitpid) && defined(QSE_USE_SYSCALL)
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# define QSE_WAITPID(pid,status,options) syscall(SYS_waitpid,pid,status,options)
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#else
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# define QSE_WAITPID(pid,status,options) waitpid(pid,status,options)
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#endif
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#if defined(SYS_kill) && defined(QSE_USE_SYSCALL)
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# define QSE_KILL(pid,sig) syscall(SYS_kill,pid,sig)
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#else
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# define QSE_KILL(pid,sig) kill(pid,sig)
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#endif
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#if defined(SYS_getpid) && defined(QSE_USE_SYSCALL)
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# define QSE_GETPID() syscall(SYS_getpid)
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#else
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# define QSE_GETPID() getpid()
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#endif
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#if defined(SYS_getuid) && defined(QSE_USE_SYSCALL)
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# define QSE_GETUID() syscall(SYS_getuid)
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#else
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# define QSE_GETUID() getuid()
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#endif
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#if defined(SYS_geteuid) && defined(QSE_USE_SYSCALL)
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# define QSE_GETEUID() syscall(SYS_geteuid)
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#else
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# define QSE_GETEUID() geteuid()
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#endif
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#if defined(SYS_getgid) && defined(QSE_USE_SYSCALL)
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# define QSE_GETGID() syscall(SYS_getgid)
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#else
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# define QSE_GETGID() getgid()
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#endif
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#if defined(SYS_getegid) && defined(QSE_USE_SYSCALL)
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# define QSE_GETEGID() syscall(SYS_getegid)
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#else
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# define QSE_GETEGID() getegid()
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#endif
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#if defined(SYS_gettimeofday) && defined(QSE_USE_SYSCALL)
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# define QSE_GETTIMEOFDAY(tv,tz) syscall(SYS_gettimeofday,tv,tz)
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#else
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# define QSE_GETTIMEOFDAY(tv,tz) gettimeofday(tv,tz)
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#endif
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#if defined(SYS_settimeofday) && defined(QSE_USE_SYSCALL)
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# define QSE_SETTIMEOFDAY(tv,tz) syscall(SYS_settimeofday,tv,tz)
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#else
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# define QSE_SETTIMEOFDAY(tv,tz) settimeofday(tv,tz)
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#endif
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#if defined(SYS_time) && defined(QSE_USE_SYSCALL)
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# define QSE_TIME(tv) syscall(SYS_time,tv)
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#else
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# define QSE_TIME(tv) time(tv)
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#endif
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#if defined(SYS_stime) && defined(QSE_USE_SYSCALL)
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# define QSE_STIME(tv) syscall(SYS_stime,tv)
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#else
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# define QSE_STIME(tv) stime(tv)
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#endif
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#if defined(SYS_getrlimit) && defined(QSE_USE_SYSCALL)
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# define QSE_GETRLIMIT(res,lim) syscall(SYS_getrlimit,res,lim)
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#else
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# define QSE_GETRLIMIT(res,lim) getrlimit(res,lim)
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#endif
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#if defined(SYS_setrlimit) && defined(QSE_USE_SYSCALL)
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# define QSE_SETRLIMIT(res,lim) syscall(SYS_setrlimit,res,lim)
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#else
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# define QSE_SETRLIMIT(res,lim) setrlimit(res,lim)
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#endif
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/* ===== FILE SYSTEM CALLS ===== */
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#if defined(SYS_chmod) && defined(QSE_USE_SYSCALL)
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# define QSE_CHMOD(path,mode) syscall(SYS_chmod,path,mode)
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#else
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# define QSE_CHMOD(path,mode) chmod(path,mode)
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#endif
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#if defined(SYS_chown) && defined(QSE_USE_SYSCALL)
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# define QSE_CHOWN(path,owner,group) syscall(SYS_chown,path,owner,group)
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#else
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# define QSE_CHOWN(path,owner,group) chown(path,owner,group)
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#endif
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#if defined(SYS_chroot) && defined(QSE_USE_SYSCALL)
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# define QSE_CHROOT(path) syscall(SYS_chroot,path)
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#else
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# define QSE_CHROOT(path) chroot(path)
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#endif
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#if defined(SYS_lchown) && defined(QSE_USE_SYSCALL)
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# define QSE_LCHOWN(path,owner,group) syscall(SYS_lchown,path,owner,group)
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#else
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# define QSE_LCHOWN(path,owner,group) lchown(path,owner,group)
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#endif
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#if defined(SYS_link) && defined(QSE_USE_SYSCALL)
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# define QSE_LINK(oldpath,newpath) syscall(SYS_link,oldpath,newpath)
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#else
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# define QSE_LINK(oldpath,newpath) link(oldpath,newpath)
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#endif
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#if !defined(_LP64) && (QSE_SIZEOF_VOID_P<8) && defined(SYS_lstat64) && defined(QSE_USE_SYSCALL)
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# define QSE_LSTAT(path,stbuf) syscall(SYS_lstat,path,stbuf)
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typedef struct stat64 qse_lstat_t;
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#elif defined(SYS_lstat) && defined(QSE_USE_SYSCALL)
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# define QSE_LSTAT(path,stbuf) syscall(SYS_lstat,path,stbuf)
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typedef struct stat qse_lstat_t;
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#elif !defined(_LP64) && (QSE_SIZEOF_VOID_P<8) && defined(HAVE_LSTAT64)
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# define QSE_LSTAT(path,stbuf) lstat64(path,stbuf)
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typedef struct stat64 qse_lstat_t;
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#else
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# define QSE_LSTAT(path,stbuf) lstat(path,stbuf)
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typedef struct stat qse_lstat_t;
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#endif
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#if defined(SYS_access) && defined(QSE_USE_SYSCALL)
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# define QSE_ACCESS(path,mode) syscall(SYS_access,path,mode)
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#else
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# define QSE_ACCESS(path,mode) access(path,mode)
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#endif
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#if defined(SYS_rename) && defined(QSE_USE_SYSCALL)
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# define QSE_RENAME(oldpath,newpath) syscall(SYS_rename,oldpath,newpath)
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#else
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int rename(const char *oldpath, const char *newpath); /* not to include stdio.h */
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# define QSE_RENAME(oldpath,newpath) rename(oldpath,newpath)
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#endif
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#if defined(SYS_mkdir) && defined(QSE_USE_SYSCALL)
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# define QSE_MKDIR(path,mode) syscall(SYS_mkdir,path,mode)
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#else
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# define QSE_MKDIR(path,mode) mkdir(path,mode)
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#endif
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#if defined(SYS_rmdir) && defined(QSE_USE_SYSCALL)
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# define QSE_RMDIR(path) syscall(SYS_rmdir,path)
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#else
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# define QSE_RMDIR(path) rmdir(path)
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#endif
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#if !defined(_LP64) && (QSE_SIZEOF_VOID_P<8) && defined(SYS_stat64) && defined(QSE_USE_SYSCALL)
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# define QSE_STAT(path,stbuf) syscall(SYS_stat64,path,stbuf)
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typedef struct stat64 qse_stat_t;
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#elif defined(SYS_stat) && defined(QSE_USE_SYSCALL)
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# define QSE_STAT(path,stbuf) syscall(SYS_stat,path,stbuf)
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typedef struct stat qse_stat_t;
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#elif !defined(_LP64) && (QSE_SIZEOF_VOID_P<8) && defined(HAVE_STAT64)
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# define QSE_STAT(path,stbuf) stat64(path,stbuf)
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typedef struct stat64 qse_stat_t;
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#else
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# define QSE_STAT(path,stbuf) stat(path,stbuf)
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typedef struct stat qse_stat_t;
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#endif
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#if defined(SYS_symlink) && defined(QSE_USE_SYSCALL)
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# define QSE_SYMLINK(oldpath,newpath) syscall(SYS_symlink,oldpath,newpath)
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#else
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# define QSE_SYMLINK(oldpath,newpath) symlink(oldpath,newpath)
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#endif
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#if defined(SYS_readlink) && defined(QSE_USE_SYSCALL)
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# define QSE_READLINK(path,buf,size) syscall(SYS_readlink,path,buf,size)
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#else
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# define QSE_READLINK(path,buf,size) readlink(path,buf,size)
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#endif
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#if defined(SYS_unlink) && defined(QSE_USE_SYSCALL)
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# define QSE_UNLINK(path) syscall(SYS_unlink,path)
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#else
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# define QSE_UNLINK(path) unlink(path)
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#endif
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#if defined(SYS_utime) && defined(QSE_USE_SYSCALL)
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# define QSE_UTIME(path,t) syscall(SYS_utime,path,t)
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#else
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# define QSE_UTIME(path,t) utime(path,t)
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#endif
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#if defined(SYS_utimes) && defined(QSE_USE_SYSCALL)
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# define QSE_UTIMES(path,t) syscall(SYS_utimes,path,t)
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#else
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# define QSE_UTIMES(path,t) utimes(path,t)
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#endif
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#if defined(SYS_futimes) && defined(QSE_USE_SYSCALL)
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# define QSE_FUTIMES(fd,t) syscall(SYS_futimes,fd,t)
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#else
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# define QSE_FUTIMES(fd,t) futimes(fd,t)
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#endif
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#if defined(SYS_lutimes) && defined(QSE_USE_SYSCALL)
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# define QSE_LUTIMES(fd,t) syscall(SYS_lutimes,fd,t)
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#else
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# define QSE_LUTIMES(fd,t) lutimes(fd,t)
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#endif
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#if defined(SYS_futimens) && defined(QSE_USE_SYSCALL)
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# define QSE_FUTIMENS(fd,t) syscall(SYS_futimens,fd,t)
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#else
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# define QSE_FUTIMENS(fd,t) futimens(fd,t)
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#endif
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/* ===== DIRECTORY - not really system calls ===== */
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#define QSE_OPENDIR(name) opendir(name)
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#define QSE_CLOSEDIR(dir) closedir(dir)
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#define QSE_REWINDDIR(dir) rewinddir(dir)
|
|
#if defined(HAVE_DIRFD)
|
|
# define QSE_DIRFD(dir) dirfd(dir)
|
|
#elif defined(HAVE_DIR_DD_FD)
|
|
# define QSE_DIRFD(dir) ((dir)->dd_fd)
|
|
#elif defined(HAVE_DIR_D_FD)
|
|
# define QSE_DIRFD(dir) ((dir)->d_fd)
|
|
#else
|
|
# error OUCH!!! NO DIRFD AVAILABLE
|
|
#endif
|
|
#define QSE_DIR DIR
|
|
|
|
#if defined(HAVE_READDIR64)
|
|
typedef struct dirent64 qse_dirent_t;
|
|
# define QSE_READDIR(x) readdir64(x)
|
|
#else
|
|
typedef struct dirent qse_dirent_t;
|
|
# define QSE_READDIR(x) readdir(x)
|
|
#endif
|
|
|
|
/* ------------------------------------------------------------------------ */
|
|
|
|
#if defined(__linux) && defined(__GNUC__) && defined(__x86_64)
|
|
|
|
#include <sys/syscall.h>
|
|
|
|
/*
|
|
|
|
http://www.x86-64.org/documentation/abi.pdf
|
|
|
|
A.2 AMD64 Linux Kernel Conventions
|
|
The section is informative only.
|
|
|
|
A.2.1 Calling Conventions
|
|
The Linux AMD64 kernel uses internally the same calling conventions as user-
|
|
level applications (see section 3.2.3 for details). User-level applications
|
|
that like to call system calls should use the functions from the C library.
|
|
The interface between the C library and the Linux kernel is the same as for
|
|
the user-level applications with the following differences:
|
|
|
|
1. User-level applications use as integer registers for passing the sequence
|
|
%rdi, %rsi, %rdx, %rcx, %r8 and %r9. The kernel interface uses %rdi,
|
|
%rsi, %rdx, %r10, %r8 and %r9.
|
|
2. A system-call is done via the syscall instruction. The kernel destroys
|
|
registers %rcx and %r11.
|
|
3. The number of the syscall has to be passed in register %rax.
|
|
4. System-calls are limited to six arguments, no argument is passed directly
|
|
on the stack.
|
|
5. Returning from the syscall, register %rax contains the result of the
|
|
system-call. A value in the range between -4095 and -1 indicates an error,
|
|
it is -errno.
|
|
6. Only values of class INTEGER or class MEMORY are passed to the kernel.
|
|
|
|
*/
|
|
|
|
/*
|
|
#define QSE_SYSCALL0(ret,num) \
|
|
__asm__ volatile ( \
|
|
"movq %1, %%rax\n\t" \
|
|
"syscall\n" \
|
|
: "=&a"(ret) \
|
|
: "g"((qse_uint64_t)num) \
|
|
: "%rcx", "%r11")
|
|
|
|
#define QSE_SYSCALL1(ret,num,arg1) \
|
|
__asm__ volatile ( \
|
|
"movq %1, %%rax\n\t" \
|
|
"movq %2, %%rdi\n\t" \
|
|
"syscall\n" \
|
|
: "=&a"(ret) \
|
|
: "g"((qse_uint64_t)num), "g"((qse_uint64_t)arg1) \
|
|
: "%rdi", "%rcx", "%r11")
|
|
|
|
#define QSE_SYSCALL2(ret,num,arg1,arg2) \
|
|
__asm__ volatile ( \
|
|
"movq %1, %%rax\n\t" \
|
|
"movq %2, %%rdi\n\t" \
|
|
"movq %3, %%rsi\n\t" \
|
|
"syscall\n" \
|
|
: "=&a"(ret) \
|
|
: "g"((qse_uint64_t)num), "g"((qse_uint64_t)arg1), "g"((qse_uint64_t)arg2) \
|
|
: "%rdi", "%rsi", "%rcx", "%r11")
|
|
|
|
#define QSE_SYSCALL3(ret,num,arg1,arg2,arg3) \
|
|
__asm__ volatile ( \
|
|
"movq %1, %%rax\n\t" \
|
|
"movq %2, %%rdi\n\t" \
|
|
"movq %3, %%rsi\n\t" \
|
|
"movq %4, %%rdx\n\t" \
|
|
"syscall\n" \
|
|
: "=&a"(ret) \
|
|
: "g"((qse_uint64_t)num), "g"((qse_uint64_t)arg1), "g"((qse_uint64_t)arg2), "g"((qse_uint64_t)arg3) \
|
|
: "%rdi", "%rsi", "%rdx", "%rcx", "%r11")
|
|
*/
|
|
|
|
#define QSE_SYSCALL0(ret,num) \
|
|
__asm__ volatile ( \
|
|
"syscall\n" \
|
|
: "=a"(ret) \
|
|
: "a"((qse_uint64_t)num) \
|
|
: "memory", "cc", "%rcx", "%r11" \
|
|
)
|
|
|
|
|
|
#define QSE_SYSCALL1(ret,num,arg1) \
|
|
__asm__ volatile ( \
|
|
"syscall\n" \
|
|
: "=a"(ret) \
|
|
: "a"((qse_uint64_t)num), "D"((qse_uint64_t)arg1) \
|
|
: "memory", "cc", "%rcx", "%r11" \
|
|
)
|
|
|
|
#define QSE_SYSCALL2(ret,num,arg1,arg2) \
|
|
__asm__ volatile ( \
|
|
"syscall\n" \
|
|
: "=a"(ret) \
|
|
: "a"((qse_uint64_t)num), "D"((qse_uint64_t)arg1), "S"((qse_uint64_t)arg2) \
|
|
: "memory", "cc", "%rcx", "%r11" \
|
|
)
|
|
|
|
#define QSE_SYSCALL3(ret,num,arg1,arg2,arg3) \
|
|
__asm__ volatile ( \
|
|
"syscall\n" \
|
|
: "=a"(ret) \
|
|
: "a"((qse_uint64_t)num), "D"((qse_uint64_t)arg1), "S"((qse_uint64_t)arg2), "d"((qse_uint64_t)arg3) \
|
|
: "memory", "cc", "%rcx", "%r11" \
|
|
)
|
|
|
|
#define QSE_SYSCALL4(ret,num,arg1,arg2,arg3,arg4) \
|
|
__asm__ volatile ( \
|
|
"syscall\n" \
|
|
: "=a"(ret) \
|
|
: "a"((qse_uint64_t)num), "D"((qse_uint64_t)arg1), "S"((qse_uint64_t)arg2), "d"((qse_uint64_t)arg3), "c"((qse_uint64_t)arg4) \
|
|
: "memory", "cc", "%rcx", "%r11" \
|
|
)
|
|
|
|
#elif defined(__linux) && defined(__GNUC__) && defined(__i386)
|
|
|
|
#include <sys/syscall.h>
|
|
|
|
#define QSE_SYSCALL0(ret,num) \
|
|
__asm__ volatile ( \
|
|
"int $0x80\n" \
|
|
: "=a"(ret) \
|
|
: "a"((qse_uint32_t)num) \
|
|
: "memory" \
|
|
)
|
|
|
|
/*
|
|
#define QSE_SYSCALL1(ret,num,arg1) \
|
|
__asm__ volatile ( \
|
|
"int $0x80\n" \
|
|
: "=a"(ret) \
|
|
: "a"((qse_uint32_t)num), "b"((qse_uint32_t)arg1) \
|
|
: "memory" \
|
|
)
|
|
|
|
GCC in x86 PIC mode uses ebx to store the GOT table. so the macro shouldn't
|
|
clobber the ebx register. this modified version stores ebx before interrupt
|
|
and restores it after interrupt.
|
|
*/
|
|
#define QSE_SYSCALL1(ret,num,arg1) \
|
|
__asm__ volatile ( \
|
|
"push %%ebx\n\t" \
|
|
"movl %2, %%ebx\n\t" \
|
|
"int $0x80\n\t" \
|
|
"pop %%ebx\n" \
|
|
: "=a"(ret) \
|
|
: "a"((qse_uint32_t)num), "r"((qse_uint32_t)arg1) \
|
|
: "memory" \
|
|
)
|
|
|
|
/*
|
|
#define QSE_SYSCALL2(ret,num,arg1,arg2) \
|
|
__asm__ volatile ( \
|
|
"int $0x80\n" \
|
|
: "=a"(ret) \
|
|
: "a"((qse_uint32_t)num), "b"((qse_uint32_t)arg1), "c"((qse_uint32_t)arg2) \
|
|
: "memory" \
|
|
)
|
|
*/
|
|
#define QSE_SYSCALL2(ret,num,arg1,arg2) \
|
|
__asm__ volatile ( \
|
|
"push %%ebx\n\t" \
|
|
"movl %2, %%ebx\n\t" \
|
|
"int $0x80\n\t" \
|
|
"pop %%ebx\n" \
|
|
: "=a"(ret) \
|
|
: "a"((qse_uint32_t)num), "r"((qse_uint32_t)arg1), "c"((qse_uint32_t)arg2) \
|
|
: "memory" \
|
|
)
|
|
|
|
/*
|
|
#define QSE_SYSCALL3(ret,num,arg1,arg2,arg3) \
|
|
__asm__ volatile ( \
|
|
"int $0x80\n" \
|
|
: "=a"(ret) \
|
|
: "a"((qse_uint32_t)num), "b"((qse_uint32_t)arg1), "c"((qse_uint32_t)arg2), "d"((qse_uint32_t)arg3) \
|
|
: "memory" \
|
|
)
|
|
*/
|
|
#define QSE_SYSCALL3(ret,num,arg1,arg2,arg3) \
|
|
__asm__ volatile ( \
|
|
"push %%ebx\n\t" \
|
|
"movl %2, %%ebx\n\t" \
|
|
"int $0x80\n\t" \
|
|
"pop %%ebx\n" \
|
|
: "=a"(ret) \
|
|
: "a"((qse_uint32_t)num), "r"((qse_uint32_t)arg1), "c"((qse_uint32_t)arg2), "d"((qse_uint32_t)arg3) \
|
|
: "memory" \
|
|
)
|
|
|
|
#define QSE_SYSCALL4(ret,num,arg1,arg2,arg3,arg4) \
|
|
__asm__ volatile ( \
|
|
"push %%ebx\n\t" \
|
|
"movl %2, %%ebx\n\t" \
|
|
"int $0x80\n\t" \
|
|
"pop %%ebx\n" \
|
|
: "=a"(ret) \
|
|
: "a"((qse_uint32_t)num), "r"((qse_uint32_t)arg1), "c"((qse_uint32_t)arg2), "d"((qse_uint32_t)arg3), "S"((qse_uint32_t)arg4) \
|
|
: "memory" \
|
|
)
|
|
|
|
#endif
|
|
|
|
/* ------------------------------------------------------------------------ */
|
|
|
|
#endif
|