107 lines
1.3 KiB
C
107 lines
1.3 KiB
C
#include <u.h>
|
|
#include <libc.h>
|
|
#include "/sys/src/libc/9syscall/sys.h"
|
|
|
|
vlong _sysargs[6*4];
|
|
vlong _callsys(void);
|
|
|
|
/*
|
|
* syscalls
|
|
*/
|
|
|
|
int
|
|
getpid(void)
|
|
{
|
|
_sysargs[0] = -1;
|
|
return _callsys();
|
|
}
|
|
|
|
long
|
|
pread(int fd, void *a, long n, vlong)
|
|
{
|
|
_sysargs[0] = PREAD;
|
|
_sysargs[1] = fd;
|
|
_sysargs[2] = (vlong)a;
|
|
_sysargs[3] = n;
|
|
return _callsys();
|
|
}
|
|
|
|
long
|
|
pwrite(int fd, void *a, long n, vlong)
|
|
{
|
|
_sysargs[0] = PWRITE;
|
|
_sysargs[1] = fd;
|
|
_sysargs[2] = (vlong)a;
|
|
_sysargs[3] = n;
|
|
return _callsys();
|
|
}
|
|
|
|
int
|
|
close(int fd)
|
|
{
|
|
_sysargs[0] = CLOSE;
|
|
_sysargs[1] = fd;
|
|
return _callsys();
|
|
}
|
|
|
|
int
|
|
open(char *name, int mode)
|
|
{
|
|
_sysargs[0] = OPEN;
|
|
_sysargs[1] = (vlong)name;
|
|
_sysargs[2] = mode;
|
|
return _callsys();
|
|
}
|
|
|
|
int
|
|
create(char *f, int mode, ulong perm)
|
|
{
|
|
_sysargs[0] = CREATE;
|
|
_sysargs[1] = (vlong)f;
|
|
_sysargs[2] = mode;
|
|
_sysargs[3] = perm;
|
|
return _callsys();
|
|
}
|
|
|
|
void
|
|
_exits(char *s)
|
|
{
|
|
_sysargs[0] = EXITS;
|
|
_sysargs[1] = s!=nil? strlen(s): 0;
|
|
_callsys();
|
|
}
|
|
|
|
int
|
|
dup(int f, int t)
|
|
{
|
|
_sysargs[0] = DUP;
|
|
_sysargs[1] = f;
|
|
_sysargs[2] = t;
|
|
return _callsys();
|
|
}
|
|
|
|
int
|
|
errstr(char *buf, uint n)
|
|
{
|
|
_sysargs[0] = ERRSTR;
|
|
_sysargs[1] = (vlong)buf;
|
|
_sysargs[2] = n;
|
|
return _callsys();
|
|
}
|
|
|
|
int
|
|
brk_(void *a)
|
|
{
|
|
_sysargs[0] = BRK_;
|
|
_sysargs[1] = (vlong)a;
|
|
return _callsys();
|
|
}
|
|
|
|
void*
|
|
sbrk(ulong n)
|
|
{
|
|
_sysargs[0] = -2;
|
|
_sysargs[1] = n;
|
|
return (void*)_callsys();
|
|
}
|