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add more stub for newlib porting.

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git-svn-id: https://rt-thread.googlecode.com/svn/trunk@669 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong
2010-04-26 10:21:24 +00:00
parent c8efa6b331
commit 914e281892
4 changed files with 65 additions and 4 deletions
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53
components/libc/newlib/syscalls.c
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@@ -1,8 +1,57 @@
#include <reent.h>
#include <sys/errno.h>
int _fork_r (struct _reent *ptr)
int _fork_r (struct _reent *r)
{
/* return "not supported" */
ptr->errno = ENOTSUP;
r->_errno = ENOTSUP;
return -1;
}
_ssize_t
_read_r (struct _reent *r, int fd, void *buf, size_t nbytes)
{
_ssize_t rc;
rc = -1;
/* return "not supported" */
r->_errno = ENOTSUP;
return rc;
}
_ssize_t
_write_r (struct _reent *r, int fd, const void *buf, size_t nbytes)
{
_ssize_t rc;
rc = -1;
/* return "not supported" */
r->_errno = ENOTSUP;
return rc;
}
int
_close_r (struct _reent *r, int fd)
{
_ssize_t rc;
rc = -1;
/* return "not supported" */
r->_errno = ENOTSUP;
return rc;
}
_off_t
_lseek_r (struct _reent *r, int fd, _off_t offset, int whence)
{
_ssize_t rc;
rc = -1;
/* return "not supported" */
r->_errno = ENOTSUP;
return rc;
}