URL https://opencores.org/ocsvn/or1k_old/or1k_old/trunk

Subversion Repositories or1k_old

[/] [or1k_old/] [trunk/] [newlib/] [newlib/] [libc/] [sys/] [w65/] [syscalls.c] - Blame information for rev 40

Go to most recent revision | Details | Compare with Previous | View Log


#include <_ansi.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "sys/syscall.h"
int errno;
 
 
 
int
_read (int file,
       char *ptr,
       int len)
{
  return __trap3 (SYS_read, file, ptr, len);
}
 
 
int
_lseek (int file,
        int ptr,
        int dir)
{
  return __trap3 (SYS_lseek, file, ptr, dir);
}
 
static
writechar (char c)
{
  asm ("lda %0" : : "r" (c));
  asm ("wdm");
}
 
 
 
int
_write (
         int file,
         char *ptr,
         int len)
{
  return __trap3 (SYS_write, file, ptr, len);
}
 
 
 
int
_close (int file)
{
  return __trap3 (SYS_close, file, 0, 0);
}
 
 
 
caddr_t
_sbrk (int incr)
{
  extern char end;              /* Defined by the linker */
  static char *heap_end;
  char *prev_heap_end;
 
  if (heap_end == 0)
    {
      heap_end = &end;
    }
  prev_heap_end = heap_end;
  if (heap_end + incr > stack_ptr)
    {
      _write (1, "Heap and stack collision\n", 25);
      abort ();
    }
 
  heap_end += incr;
  return (caddr_t) prev_heap_end;
}
 
 
 
 
int
_fstat (int file,
        struct stat *st)
{
  st->st_mode = S_IFCHR;
  return 0;
}
 
 
int
_open (
        char *path,
        int flags)
{
  return __trap3 (SYS_open, path, flags, 0);
}
 
int
_unlink ()
{
  return -1;
}
 
isatty (fd)
     int fd;
{
  return 1;
}
 
 
 
_exit (n)
{
  return __trap3 (SYS_exit, n, 0, 0);
}
 
 
_kill (n, m)
{
  return __trap3 (SYS_exit, 0xdead, 0, 0);
}
 
 
_getpid (n)
{
  return 1;
}
 
 
 
 
_raise ()
{
 
}
 
int
_stat (const char *path, struct stat *st)
 
{
  return _trap3 (SYS_stat, path, st, 0);
}
 
int
_chmod (const char *path, short mode)
{
  return _trap3 (SYS_chmod, path, mode);
}
 
int
_chown (const char *path, short owner, short group)
{
  return _trap3 (SYS_chown, path, owner, group);
}
 
int
_utime (path, times)
     const char *path;
     char *times;
{
  return _trap3 (SYS_utime, path, times);
}
 
int
_fork ()
{
  return _trap3 (SYS_fork);
}
 
int
_wait (statusp)
     int *statusp;
{
  return _trap3 (SYS_wait);
}
 
int
_execve (const char *path, char *const argv[], char *const envp[])
{
  return _trap3 (SYS_execve, path, argv, envp);
}
 
int
_execv (const char *path, char *const argv[])
{
  return _trap3 (SYS_execv, path, argv);
}
 
int
_pipe (int *fd)
{
  return _trap3 (SYS_pipe, fd);
}

Line No.	Rev	Author	Line
1	39	lampret	`#include <_ansi.h>`
2			`#include <sys/types.h>`
3			`#include <sys/stat.h>`
4			`#include "sys/syscall.h"`
5			`int errno;`
6
7
8
9			`int`
10			`_read (int file,`
11			`char *ptr,`
12			`int len)`
13			`{`
14			`return __trap3 (SYS_read, file, ptr, len);`
15			`}`
16
17
18			`int`
19			`_lseek (int file,`
20			`int ptr,`
21			`int dir)`
22			`{`
23			`return __trap3 (SYS_lseek, file, ptr, dir);`
24			`}`
25
26			`static`
27			`writechar (char c)`
28			`{`
29			`asm ("lda %0" : : "r" (c));`
30			`asm ("wdm");`
31			`}`
32
33
34
35			`int`
36			`_write (`
37			`int file,`
38			`char *ptr,`
39			`int len)`
40			`{`
41			`return __trap3 (SYS_write, file, ptr, len);`
42			`}`
43
44
45
46			`int`
47			`_close (int file)`
48			`{`
49			`return __trap3 (SYS_close, file, 0, 0);`
50			`}`
51
52
53
54			`caddr_t`
55			`_sbrk (int incr)`
56			`{`
57			`extern char end; /* Defined by the linker */`
58			`static char *heap_end;`
59			`char *prev_heap_end;`
60
61			`if (heap_end == 0)`
62			`{`
63			`heap_end = &end;`
64			`}`
65			`prev_heap_end = heap_end;`
66			`if (heap_end + incr > stack_ptr)`
67			`{`
68			`_write (1, "Heap and stack collision\n", 25);`
69			`abort ();`
70			`}`
71
72			`heap_end += incr;`
73			`return (caddr_t) prev_heap_end;`
74			`}`
75
76
77
78
79			`int`
80			`_fstat (int file,`
81			`struct stat *st)`
82			`{`
83			`st->st_mode = S_IFCHR;`
84			`return 0;`
85			`}`
86
87
88			`int`
89			`_open (`
90			`char *path,`
91			`int flags)`
92			`{`
93			`return __trap3 (SYS_open, path, flags, 0);`
94			`}`
95
96			`int`
97			`_unlink ()`
98			`{`
99			`return -1;`
100			`}`
101
102			`isatty (fd)`
103			`int fd;`
104			`{`
105			`return 1;`
106			`}`
107
108
109
110			`_exit (n)`
111			`{`
112			`return __trap3 (SYS_exit, n, 0, 0);`
113			`}`
114
115
116			`_kill (n, m)`
117			`{`
118			`return __trap3 (SYS_exit, 0xdead, 0, 0);`
119			`}`
120
121
122			`_getpid (n)`
123			`{`
124			`return 1;`
125			`}`
126
127
128
129
130			`_raise ()`
131			`{`
132
133			`}`
134
135			`int`
136			`_stat (const char path, struct stat st)`
137
138			`{`
139			`return _trap3 (SYS_stat, path, st, 0);`
140			`}`
141
142			`int`
143			`_chmod (const char *path, short mode)`
144			`{`
145			`return _trap3 (SYS_chmod, path, mode);`
146			`}`
147
148			`int`
149			`_chown (const char *path, short owner, short group)`
150			`{`
151			`return _trap3 (SYS_chown, path, owner, group);`
152			`}`
153
154			`int`
155			`_utime (path, times)`
156			`const char *path;`
157			`char *times;`
158			`{`
159			`return _trap3 (SYS_utime, path, times);`
160			`}`
161
162			`int`
163			`_fork ()`
164			`{`
165			`return _trap3 (SYS_fork);`
166			`}`
167
168			`int`
169			`_wait (statusp)`
170			`int *statusp;`
171			`{`
172			`return _trap3 (SYS_wait);`
173			`}`
174
175			`int`
176			`_execve (const char path, char const argv[], char *const envp[])`
177			`{`
178			`return _trap3 (SYS_execve, path, argv, envp);`
179			`}`
180
181			`int`
182			`_execv (const char path, char const argv[])`
183			`{`
184			`return _trap3 (SYS_execv, path, argv);`
185			`}`
186
187			`int`
188			`_pipe (int *fd)`
189			`{`
190			`return _trap3 (SYS_pipe, fd);`
191			`}`

Browse

Tools

Subversion Repositories or1k_old

[/] [or1k_old/] [trunk/] [newlib/] [newlib/] [libc/] [sys/] [w65/] [syscalls.c] - Blame information for rev 40