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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libc/] [reent/] [execr.c] - Blame information for rev 158

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/* Reentrant versions of execution system calls.  These
   implementations just call the usual system calls.  */
 
#include <reent.h>
#include <unistd.h>
#include <sys/wait.h>
#include <_syslist.h>
 
/* Some targets provides their own versions of these functions.  Those
   targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS.  */
 
#ifdef _REENT_ONLY
#ifndef REENTRANT_SYSCALLS_PROVIDED
#define REENTRANT_SYSCALLS_PROVIDED
#endif
#endif
 
/* If NO_EXEC is defined, we don't need these functions.  */
 
#if defined (REENTRANT_SYSCALLS_PROVIDED) || defined (NO_EXEC)
 
int _dummy_exec_syscalls = 1;
 
#else
 
/* We use the errno variable used by the system dependent layer.  */
#undef errno
extern int errno;
 
/*
FUNCTION
        <<_execve_r>>---Reentrant version of execve
INDEX
        _execve_r
 
ANSI_SYNOPSIS
        #include <reent.h>
        int _execve_r(struct _reent *<[ptr]>, const char *<[name]>,
                      char *const <[argv]>[], char *const <[env]>[]);
 
TRAD_SYNOPSIS
        #include <reent.h>
        int _execve_r(<[ptr]>, <[name]>, <[argv]>, <[env]>)
        struct _reent *<[ptr]>;
        char *<[name]>;
        char *<[argv]>[];
        char *<[env]>[];
 
DESCRIPTION
        This is a reentrant version of <<execve>>.  It
        takes a pointer to the global data block, which holds
        <<errno>>.
*/
 
int
_DEFUN (_execve_r, (ptr, name, argv, env),
     struct _reent *ptr _AND
     _CONST char *name _AND
     char *_CONST argv[] _AND
     char *_CONST env[])
{
  int ret;
 
  errno = 0;
  if ((ret = _execve (name, argv, env)) == -1 && errno != 0)
    ptr->_errno = errno;
  return ret;
}
 
 
/*
FUNCTION
        <<_fork_r>>---Reentrant version of fork
 
INDEX
        _fork_r
 
ANSI_SYNOPSIS
        #include <reent.h>
        int _fork_r(struct _reent *<[ptr]>);
 
TRAD_SYNOPSIS
        #include <reent.h>
        int _fork_r(<[ptr]>)
        struct _reent *<[ptr]>;
 
DESCRIPTION
        This is a reentrant version of <<fork>>.  It
        takes a pointer to the global data block, which holds
        <<errno>>.
*/
 
#ifndef NO_FORK
 
int
_DEFUN (_fork_r, (ptr),
     struct _reent *ptr)
{
  int ret;
 
  errno = 0;
  if ((ret = _fork ()) == -1 && errno != 0)
    ptr->_errno = errno;
  return ret;
}
 
#endif
 
/*
FUNCTION
        <<_wait_r>>---Reentrant version of wait
 
INDEX
        _wait_r
 
ANSI_SYNOPSIS
        #include <reent.h>
        int _wait_r(struct _reent *<[ptr]>, int *<[status]>);
 
TRAD_SYNOPSIS
        #include <reent.h>
        int _wait_r(<[ptr]>, <[status]>)
        struct _reent *<[ptr]>;
        int *<[status]>;
 
DESCRIPTION
        This is a reentrant version of <<wait>>.  It
        takes a pointer to the global data block, which holds
        <<errno>>.
*/
 
int
_DEFUN (_wait_r, (ptr, status),
     struct _reent *ptr _AND
     int *status)
{
  int ret;
 
  errno = 0;
  if ((ret = _wait (status)) == -1 && errno != 0)
    ptr->_errno = errno;
  return ret;
}
 
#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */

Line No.	Rev	Author	Line
1	148	jeremybenn	`/* Reentrant versions of execution system calls. These`
2			`implementations just call the usual system calls. */`
3
4			`#include <reent.h>`
5			`#include <unistd.h>`
6			`#include <sys/wait.h>`
7			`#include <_syslist.h>`
8
9			`/* Some targets provides their own versions of these functions. Those`
10			`targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS. */`
11
12			`#ifdef _REENT_ONLY`
13			`#ifndef REENTRANT_SYSCALLS_PROVIDED`
14			`#define REENTRANT_SYSCALLS_PROVIDED`
15			`#endif`
16			`#endif`
17
18			`/* If NO_EXEC is defined, we don't need these functions. */`
19
20			`#if defined (REENTRANT_SYSCALLS_PROVIDED) \|\| defined (NO_EXEC)`
21
22			`int _dummy_exec_syscalls = 1;`
23
24			`#else`
25
26			`/* We use the errno variable used by the system dependent layer. */`
27			`#undef errno`
28			`extern int errno;`
29
30			`/*`
31			`FUNCTION`
32			`<<_execve_r>>---Reentrant version of execve`
33			`INDEX`
34			`_execve_r`
35
36			`ANSI_SYNOPSIS`
37			`#include <reent.h>`
38			`int _execve_r(struct _reent <[ptr]>, const char <[name]>,`
39			`char const <[argv]>[], char const <[env]>[]);`
40
41			`TRAD_SYNOPSIS`
42			`#include <reent.h>`
43			`int _execve_r(<[ptr]>, <[name]>, <[argv]>, <[env]>)`
44			`struct _reent *<[ptr]>;`
45			`char *<[name]>;`
46			`char *<[argv]>[];`
47			`char *<[env]>[];`
48
49			`DESCRIPTION`
50			`This is a reentrant version of <<execve>>. It`
51			`takes a pointer to the global data block, which holds`
52			`<<errno>>.`
53			`*/`
54
55			`int`
56			`_DEFUN (_execve_r, (ptr, name, argv, env),`
57			`struct _reent *ptr _AND`
58			`_CONST char *name _AND`
59			`char *_CONST argv[] _AND`
60			`char *_CONST env[])`
61			`{`
62			`int ret;`
63
64			`errno = 0;`
65			`if ((ret = _execve (name, argv, env)) == -1 && errno != 0)`
66			`ptr->_errno = errno;`
67			`return ret;`
68			`}`
69
70
71			`/*`
72			`FUNCTION`
73			`<<_fork_r>>---Reentrant version of fork`
74
75			`INDEX`
76			`_fork_r`
77
78			`ANSI_SYNOPSIS`
79			`#include <reent.h>`
80			`int _fork_r(struct _reent *<[ptr]>);`
81
82			`TRAD_SYNOPSIS`
83			`#include <reent.h>`
84			`int _fork_r(<[ptr]>)`
85			`struct _reent *<[ptr]>;`
86
87			`DESCRIPTION`
88			`This is a reentrant version of <<fork>>. It`
89			`takes a pointer to the global data block, which holds`
90			`<<errno>>.`
91			`*/`
92
93			`#ifndef NO_FORK`
94
95			`int`
96			`_DEFUN (_fork_r, (ptr),`
97			`struct _reent *ptr)`
98			`{`
99			`int ret;`
100
101			`errno = 0;`
102			`if ((ret = _fork ()) == -1 && errno != 0)`
103			`ptr->_errno = errno;`
104			`return ret;`
105			`}`
106
107			`#endif`
108
109			`/*`
110			`FUNCTION`
111			`<<_wait_r>>---Reentrant version of wait`
112
113			`INDEX`
114			`_wait_r`
115
116			`ANSI_SYNOPSIS`
117			`#include <reent.h>`
118			`int _wait_r(struct _reent <[ptr]>, int <[status]>);`
119
120			`TRAD_SYNOPSIS`
121			`#include <reent.h>`
122			`int _wait_r(<[ptr]>, <[status]>)`
123			`struct _reent *<[ptr]>;`
124			`int *<[status]>;`
125
126			`DESCRIPTION`
127			`This is a reentrant version of <<wait>>. It`
128			`takes a pointer to the global data block, which holds`
129			`<<errno>>.`
130			`*/`
131
132			`int`
133			`_DEFUN (_wait_r, (ptr, status),`
134			`struct _reent *ptr _AND`
135			`int *status)`
136			`{`
137			`int ret;`
138
139			`errno = 0;`
140			`if ((ret = _wait (status)) == -1 && errno != 0)`
141			`ptr->_errno = errno;`
142			`return ret;`
143			`}`
144
145			`#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */`

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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libc/] [reent/] [execr.c] - Blame information for rev 158