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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [libgloss/] [d30v/] [syscalls.c] - Blame information for rev 271

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/*
 * syscalls.c -- provide system call support via trap 31
 *
 * Copyright (c) 1997 Cygnus Support
 *
 * The authors hereby grant permission to use, copy, modify, distribute,
 * and license this software and its documentation for any purpose, provided
 * that existing copyright notices are retained in all copies and that this
 * notice is included verbatim in any distributions. No written agreement,
 * license, or royalty fee is required for any of the authorized uses.
 * Modifications to this software may be copyrighted by their authors
 * and need not follow the licensing terms described here, provided that
 * the new terms are clearly indicated on the first page of each file where
 * they apply.
 *
 * Read bytes, using simulator trap 31.
 */
 
#include <stdlib.h>
#include <time.h>
#include "syscall.h"
 
extern int *__errno(), errno;
 
__asm__ (
"       .globl  __syscall                                       \n\
        .type   __syscall,@function                             \n\
__syscall:                                                      \n\
        trap    31              || nop                          \n\
        cmpge   f0,r2,0         -> jmp/tx       link            \n\
        bra     __set_errno                                     \n\
        .size   __syscall,.-__syscall                           \n\
");
 
int
__set_errno (int new_errno)
{
  errno = new_errno;
  *(__errno)() = errno;
  return -1;
}
 
void
_exit (int status)
{
  __syscall (status, 0, 0, 0, SYS_exit);
}
 
int
open (const char *filename, int flags, int mode)
{
  return __syscall (filename, flags, mode, 0, SYS_open);
}
 
int
close (int filedes)
{
  return __syscall (filedes, 0, 0, 0, SYS_close);
}
 
int
read (int filedes, void *buffer, size_t length)
{
  return __syscall (filedes, buffer, length, 0, SYS_read);
}
 
int
write (int filedes, void *buffer, size_t length)
{
  return __syscall (filedes, buffer, length, 0, SYS_write);
}
 
long
lseek (int filedes, long offset, int whence)
{
  return __syscall (filedes, offset, whence, 0, SYS_lseek);
}
 
int
unlink (const char *filename)
{
  return __syscall (filename, 0, 0, 0, SYS_unlink);
}
 
int
getpid (void)
{
  return __syscall (0, 0, 0, 0, SYS_getpid);
}
 
int
kill (int signal, int pid)
{
  return __syscall (signal, pid, 0, 0, SYS_kill);
}
 
int
fstat (int filedes, void *info)
{
  return __syscall (filedes, info, 0, 0, SYS_fstat);
}
 
int
__argvlen (void)
{
  return __syscall (0, 0, 0, 0, SYS_argvlen);
}
 
int
__argv (void)
{
  return __syscall (0, 0, 0, 0, SYS_argv);
}
 
int
chdir (char *dir)
{
  return __syscall (dir, 0, 0, 0, SYS_chdir);
}
 
int
stat (const char *filename, void *info)
{
  return __syscall (filename, info, 0, 0, SYS_stat);
}
 
int
chmod (const char *filename, int mode)
{
  return __syscall (filename, mode, 0, 0, SYS_chmod);
}
 
int
utime (const char *filename, void *packet)
{
  return __syscall (filename, packet, 0, 0, SYS_utime);
}
 
time_t
time (time_t *time_ptr)
{
  time_t result;
  result = (time_t) __syscall (time_ptr, 0, 0, 0, SYS_time);
  if (time_ptr != NULL)
    *time_ptr = result;
  return result;
}

Line No.	Rev	Author	Line
1	148	jeremybenn	`/*`
2			`* syscalls.c -- provide system call support via trap 31`
3			`*`
4			`* Copyright (c) 1997 Cygnus Support`
5			`*`
6			`* The authors hereby grant permission to use, copy, modify, distribute,`
7			`* and license this software and its documentation for any purpose, provided`
8			`* that existing copyright notices are retained in all copies and that this`
9			`* notice is included verbatim in any distributions. No written agreement,`
10			`* license, or royalty fee is required for any of the authorized uses.`
11			`* Modifications to this software may be copyrighted by their authors`
12			`* and need not follow the licensing terms described here, provided that`
13			`* the new terms are clearly indicated on the first page of each file where`
14			`* they apply.`
15			`*`
16			`* Read bytes, using simulator trap 31.`
17			`*/`
18
19			`#include <stdlib.h>`
20			`#include <time.h>`
21			`#include "syscall.h"`
22
23			`extern int *__errno(), errno;`
24
25			`__asm__ (`
26			`" .globl __syscall \n\`
27			`.type __syscall,@function \n\`
28			`__syscall: \n\`
29			`trap 31 \|\| nop \n\`
30			`cmpge f0,r2,0 -> jmp/tx link \n\`
31			`bra __set_errno \n\`
32			`.size __syscall,.-__syscall \n\`
33			`");`
34
35			`int`
36			`__set_errno (int new_errno)`
37			`{`
38			`errno = new_errno;`
39			`*(__errno)() = errno;`
40			`return -1;`
41			`}`
42
43			`void`
44			`_exit (int status)`
45			`{`
46			`__syscall (status, 0, 0, 0, SYS_exit);`
47			`}`
48
49			`int`
50			`open (const char *filename, int flags, int mode)`
51			`{`
52			`return __syscall (filename, flags, mode, 0, SYS_open);`
53			`}`
54
55			`int`
56			`close (int filedes)`
57			`{`
58			`return __syscall (filedes, 0, 0, 0, SYS_close);`
59			`}`
60
61			`int`
62			`read (int filedes, void *buffer, size_t length)`
63			`{`
64			`return __syscall (filedes, buffer, length, 0, SYS_read);`
65			`}`
66
67			`int`
68			`write (int filedes, void *buffer, size_t length)`
69			`{`
70			`return __syscall (filedes, buffer, length, 0, SYS_write);`
71			`}`
72
73			`long`
74			`lseek (int filedes, long offset, int whence)`
75			`{`
76			`return __syscall (filedes, offset, whence, 0, SYS_lseek);`
77			`}`
78
79			`int`
80			`unlink (const char *filename)`
81			`{`
82			`return __syscall (filename, 0, 0, 0, SYS_unlink);`
83			`}`
84
85			`int`
86			`getpid (void)`
87			`{`
88			`return __syscall (0, 0, 0, 0, SYS_getpid);`
89			`}`
90
91			`int`
92			`kill (int signal, int pid)`
93			`{`
94			`return __syscall (signal, pid, 0, 0, SYS_kill);`
95			`}`
96
97			`int`
98			`fstat (int filedes, void *info)`
99			`{`
100			`return __syscall (filedes, info, 0, 0, SYS_fstat);`
101			`}`
102
103			`int`
104			`__argvlen (void)`
105			`{`
106			`return __syscall (0, 0, 0, 0, SYS_argvlen);`
107			`}`
108
109			`int`
110			`__argv (void)`
111			`{`
112			`return __syscall (0, 0, 0, 0, SYS_argv);`
113			`}`
114
115			`int`
116			`chdir (char *dir)`
117			`{`
118			`return __syscall (dir, 0, 0, 0, SYS_chdir);`
119			`}`
120
121			`int`
122			`stat (const char filename, void info)`
123			`{`
124			`return __syscall (filename, info, 0, 0, SYS_stat);`
125			`}`
126
127			`int`
128			`chmod (const char *filename, int mode)`
129			`{`
130			`return __syscall (filename, mode, 0, 0, SYS_chmod);`
131			`}`
132
133			`int`
134			`utime (const char filename, void packet)`
135			`{`
136			`return __syscall (filename, packet, 0, 0, SYS_utime);`
137			`}`
138
139			`time_t`
140			`time (time_t *time_ptr)`
141			`{`
142			`time_t result;`
143			`result = (time_t) __syscall (time_ptr, 0, 0, 0, SYS_time);`
144			`if (time_ptr != NULL)`
145			`*time_ptr = result;`
146			`return result;`
147			`}`

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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [libgloss/] [d30v/] [syscalls.c] - Blame information for rev 271