mlibc: Add ioctl.

* stage0/x86.M1 (SYS_ioctl): New define.
* lib/linux-mes.c (ioctl): New syscall.
* lib/linux-gcc.c (ioctl): New syscall.
* include/sys/ioctl.h: New file.
This commit is contained in:
Jan Nieuwenhuizen 2018-04-22 11:42:47 +02:00
parent 75444afc21
commit 979406f3a6
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4 changed files with 79 additions and 0 deletions

36
include/sys/ioctl.h Normal file
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@ -0,0 +1,36 @@
/* -*-comment-start: "//";comment-end:""-*-
* Mes --- Maxwell Equations of Software
* Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
*
* This file is part of Mes.
*
* Mes is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* Mes 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Mes. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __MES_SYS_IOCTL_H
#define __MES_SYS_IOCTL_H 1
#if __GNUC__ && POSIX
#undef __MES_SYS_IOCTL_H
#include_next <sys/ioctl.h>
#else // !(__GNUC__ && POSIX)
#define TCGETS 0x5401
#define TCGETA 0x5405
int ioctl (int fd, unsigned long request, ...);
#endif // !(__GNUC__ && POSIX)
#endif // __MES_SYS_IOCTL_H

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@ -137,6 +137,37 @@ brk (void *p)
#endif
}
int
ioctl (int fd, unsigned long request, ...)
{
#if !__TINYC__
int p;
asm (
"mov %%ebp,%%eax\n\t"
"add $0x10,%%eax\n\t"
"mov (%%eax),%%eax\n\t"
"mov %%eax,%0\n\t"
: "=p" (p)
: //no inputs ""
);
int r;
//syscall (SYS_ioctl, fd));
asm (
"mov %1,%%ebx\n\t"
"mov %2,%%ecx\n\t"
"mov %3,%%edx\n\t"
"mov $0x36, %%eax\n\t"
"int $0x80\n\t"
"mov %%eax,%0\n\t"
: "=r" (r)
: "" (fd), "" (request), "" (p)
: "eax", "ebx", "ecx", "edx"
);
return r;
#endif
}
int
fsync (int fd)
{

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@ -69,6 +69,17 @@ brk ()
asm ("int____$0x80");
}
void
ioctl ()
{
asm ("mov____0x8(%ebp),%ebx !8");
asm ("mov____0x8(%ebp),%ecx !12");
asm ("mov____0x8(%ebp),%edx !16");
asm ("mov____$i32,%eax SYS_ioctl");
asm ("int____$0x80");
}
void
fsync ()
{

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@ -205,5 +205,6 @@ DEFINE SYS_chmod 0f000000
DEFINE SYS_lseek 13000000
DEFINE SYS_access 21000000
DEFINE SYS_brk 2d000000
DEFINE SYS_ioctl 36000000
DEFINE SYS_fsync 76000000
DEFINE SYS_getcwd b7000000