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[/] [or1k/] [trunk/] [newlib-1.10.0/] [newlib/] [libc/] [sys/] [sh/] [syscalls.c] - Blame information for rev 1765

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#include <_ansi.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include "sys/syscall.h"
int errno;
 
/* This is used by _sbrk.  */
register char *stack_ptr asm ("r15");
 
int
_read (int file,
       char *ptr,
       int len)
{
  return __trap34 (SYS_read, file, ptr, len);
}
 
int
_lseek (int file,
        int ptr,
        int dir)
{
  return __trap34 (SYS_lseek, file, ptr, dir);
}
 
int
_write ( int file,
         char *ptr,
         int len)
{
  return __trap34 (SYS_write, file, ptr, len);
}
 
int
_close (int file)
{
  return __trap34 (SYS_close, file, 0, 0);
}
 
int
_link (char *old, char *new)
{
  return -1;
}
 
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 (const char *path,
        int flags)
{
  return __trap34 (SYS_open, path, flags, 0);
}
 
int
_creat (const char *path,
        int mode)
{
  return __trap34 (SYS_creat, path, mode, 0);
}
 
int
_unlink ()
{
  return -1;
}
 
isatty (fd)
     int fd;
{
  return 1;
}
 
_exit (n)
{
  return __trap34 (SYS_exit, n, 0, 0);
}
 
_kill (n, m)
{
  return __trap34 (SYS_exit, 0xdead, 0, 0);
}
 
_getpid (n)
{
  return 1;
}
 
_raise ()
{
}
 
int
_stat (const char *path, struct stat *st)
 
{
  return __trap34 (SYS_stat, path, st, 0);
}
 
int
_chmod (const char *path, short mode)
{
  return __trap34 (SYS_chmod, path, mode);
}
 
int
_chown (const char *path, short owner, short group)
{
  return __trap34 (SYS_chown, path, owner, group);
}
 
int
_utime (path, times)
     const char *path;
     char *times;
{
  return __trap34 (SYS_utime, path, times);
}
 
int
_fork ()
{
  return __trap34 (SYS_fork);
}
 
int
_wait (statusp)
     int *statusp;
{
  return __trap34 (SYS_wait);
}
 
int
_execve (const char *path, char *const argv[], char *const envp[])
{
  return __trap34 (SYS_execve, path, argv, envp);
}
 
int
_execv (const char *path, char *const argv[])
{
  return __trap34 (SYS_execv, path, argv);
}
 
int
_pipe (int *fd)
{
  return __trap34 (SYS_pipe, fd);
}
 
/* This is only provided because _gettimeofday_r and _times_r are
   defined in the same module, so we avoid a link error.  */
clock_t
_times (struct tms *tp)
{
  return -1;
}
 
int
_gettimeofday (struct timeval *tv, struct timezone *tz)
{
  tv->tv_usec = 0;
  tv->tv_sec = __trap34 (SYS_time);
  return 0;
}
 
static inline int
__setup_argv_for_main (int argc)
{
  char **argv;
  int i = argc;
 
  argv = __builtin_alloca ((1 + argc) * sizeof (*argv));
 
  argv[i] = NULL;
  while (i--) {
    argv[i] = __builtin_alloca (1 + __trap34 (SYS_argnlen, i));
    __trap34 (SYS_argn, i, argv[i]);
  }
 
  return main (argc, argv);
}
 
int
__setup_argv_and_call_main ()
{
  int argc = __trap34 (SYS_argc);
 
  if (argc <= 0)
    return main (argc, NULL);
  else
    return __setup_argv_for_main (argc);
}

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[/] [or1k/] [trunk/] [newlib-1.10.0/] [newlib/] [libc/] [sys/] [sh/] [syscalls.c] - Blame information for rev 1765

Line No.	Rev	Author	Line
1	1010	ivang	`#include <_ansi.h>`
2			`#include <sys/types.h>`
3			`#include <sys/stat.h>`
4			`#include <sys/time.h>`
5			`#include "sys/syscall.h"`
6			`int errno;`
7
8			`/* This is used by _sbrk. */`
9			`register char *stack_ptr asm ("r15");`
10
11			`int`
12			`_read (int file,`
13			`char *ptr,`
14			`int len)`
15			`{`
16			`return __trap34 (SYS_read, file, ptr, len);`
17			`}`
18
19			`int`
20			`_lseek (int file,`
21			`int ptr,`
22			`int dir)`
23			`{`
24			`return __trap34 (SYS_lseek, file, ptr, dir);`
25			`}`
26
27			`int`
28			`_write ( int file,`
29			`char *ptr,`
30			`int len)`
31			`{`
32			`return __trap34 (SYS_write, file, ptr, len);`
33			`}`
34
35			`int`
36			`_close (int file)`
37			`{`
38			`return __trap34 (SYS_close, file, 0, 0);`
39			`}`
40
41			`int`
42			`_link (char old, char new)`
43			`{`
44			`return -1;`
45			`}`
46
47			`caddr_t`
48			`_sbrk (int incr)`
49			`{`
50			`extern char end; /* Defined by the linker */`
51			`static char *heap_end;`
52			`char *prev_heap_end;`
53
54			`if (heap_end == 0)`
55			`{`
56			`heap_end = &end;`
57			`}`
58			`prev_heap_end = heap_end;`
59			`if (heap_end + incr > stack_ptr)`
60			`{`
61			`_write (1, "Heap and stack collision\n", 25);`
62			`abort ();`
63			`}`
64			`heap_end += incr;`
65			`return (caddr_t) prev_heap_end;`
66			`}`
67
68			`int`
69			`_fstat (int file,`
70			`struct stat *st)`
71			`{`
72			`st->st_mode = S_IFCHR;`
73			`return 0;`
74			`}`
75
76			`int`
77			`_open (const char *path,`
78			`int flags)`
79			`{`
80			`return __trap34 (SYS_open, path, flags, 0);`
81			`}`
82
83			`int`
84			`_creat (const char *path,`
85			`int mode)`
86			`{`
87			`return __trap34 (SYS_creat, path, mode, 0);`
88			`}`
89
90			`int`
91			`_unlink ()`
92			`{`
93			`return -1;`
94			`}`
95
96			`isatty (fd)`
97			`int fd;`
98			`{`
99			`return 1;`
100			`}`
101
102			`_exit (n)`
103			`{`
104			`return __trap34 (SYS_exit, n, 0, 0);`
105			`}`
106
107			`_kill (n, m)`
108			`{`
109			`return __trap34 (SYS_exit, 0xdead, 0, 0);`
110			`}`
111
112			`_getpid (n)`
113			`{`
114			`return 1;`
115			`}`
116
117			`_raise ()`
118			`{`
119			`}`
120
121			`int`
122			`_stat (const char path, struct stat st)`
123
124			`{`
125			`return __trap34 (SYS_stat, path, st, 0);`
126			`}`
127
128			`int`
129			`_chmod (const char *path, short mode)`
130			`{`
131			`return __trap34 (SYS_chmod, path, mode);`
132			`}`
133
134			`int`
135			`_chown (const char *path, short owner, short group)`
136			`{`
137			`return __trap34 (SYS_chown, path, owner, group);`
138			`}`
139
140			`int`
141			`_utime (path, times)`
142			`const char *path;`
143			`char *times;`
144			`{`
145			`return __trap34 (SYS_utime, path, times);`
146			`}`
147
148			`int`
149			`_fork ()`
150			`{`
151			`return __trap34 (SYS_fork);`
152			`}`
153
154			`int`
155			`_wait (statusp)`
156			`int *statusp;`
157			`{`
158			`return __trap34 (SYS_wait);`
159			`}`
160
161			`int`
162			`_execve (const char path, char const argv[], char *const envp[])`
163			`{`
164			`return __trap34 (SYS_execve, path, argv, envp);`
165			`}`
166
167			`int`
168			`_execv (const char path, char const argv[])`
169			`{`
170			`return __trap34 (SYS_execv, path, argv);`
171			`}`
172
173			`int`
174			`_pipe (int *fd)`
175			`{`
176			`return __trap34 (SYS_pipe, fd);`
177			`}`
178
179			`/* This is only provided because _gettimeofday_r and _times_r are`
180			`defined in the same module, so we avoid a link error. */`
181			`clock_t`
182			`_times (struct tms *tp)`
183			`{`
184			`return -1;`
185			`}`
186
187			`int`
188			`_gettimeofday (struct timeval tv, struct timezone tz)`
189			`{`
190			`tv->tv_usec = 0;`
191			`tv->tv_sec = __trap34 (SYS_time);`
192			`return 0;`
193			`}`
194
195			`static inline int`
196			`__setup_argv_for_main (int argc)`
197			`{`
198			`char **argv;`
199			`int i = argc;`
200
201			`argv = __builtin_alloca ((1 + argc) * sizeof (*argv));`
202
203			`argv[i] = NULL;`
204			`while (i--) {`
205			`argv[i] = __builtin_alloca (1 + __trap34 (SYS_argnlen, i));`
206			`__trap34 (SYS_argn, i, argv[i]);`
207			`}`
208
209			`return main (argc, argv);`
210			`}`
211
212			`int`
213			`__setup_argv_and_call_main ()`
214			`{`
215			`int argc = __trap34 (SYS_argc);`
216
217			`if (argc <= 0)`
218			`return main (argc, NULL);`
219			`else`
220			`return __setup_argv_for_main (argc);`
221			`}`