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add newlib stub building script.

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git-svn-id: https://rt-thread.googlecode.com/svn/trunk@702 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong 2010-05-11 09:51:43 +00:00
parent 9c8a595e28
commit b5fbf220b3
2 changed files with 210 additions and 101 deletions
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10
components/libc/newlib/SConscript Normal file
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@ -0,0 +1,10 @@
Import('env')
Import('RTT_ROOT')
# The set of source files associated with this SConscript file.
src_local = Glob('*.c')
env.Append(CPPPATH = RTT_ROOT + '/components/libc/newlib')
obj = env.Object(src_local)
Return('obj')

301
components/libc/newlib/syscalls.c
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@ -1,101 +1,200 @@
#include <reent.h> #include <reent.h>
#include <sys/errno.h> #include <sys/errno.h>
#include <rtthread.h> #include <rtthread.h>
int /* Reentrant versions of system calls. */
_fork_r (struct _reent *r)
{ int
/* return "not supported" */ _close_r(struct _reent *ptr, int fd)
r->_errno = ENOTSUP; {
return -1; return close(fd);
} }
/* int
* I/O routine stub _execve_r(struct _reent *ptr, const char * name, char *const *argv, char *const *env)
*/ {
int /* return "not supported" */
_isatty_r(struct _reent *r, int fd) ptr->_errno = ENOTSUP;
{ return -1;
_ssize_t rc; }
rc = -1; int
/* return "not supported" */ _fcntl_r(struct _reent *ptr, int fd, int cmd, int arg)
r->_errno = ENOTSUP; {
/* return "not supported" */
return rc; ptr->_errno = ENOTSUP;
} return -1;
}
int
_open_r(struct _reent *r, const char *file, int flags, int mode) int
{ _fork_r(struct _reent *ptr)
int rc; {
/* return "not supported" */
rc = open(file, flags, mode); ptr->_errno = ENOTSUP;
return rc; return -1;
} }
_ssize_t int
_read_r (struct _reent *r, int fd, void *buf, size_t nbytes) _fstat_r(struct _reent *ptr, int fd, struct stat *pstat)
{ {
_ssize_t rc; /* return "not supported" */
ptr->_errno = ENOTSUP;
rc = read(fd, buf, nbytes); return -1;
return rc; }
}
int
_ssize_t _getpid_r(struct _reent *ptr)
_write_r (struct _reent *r, int fd, const void *buf, size_t nbytes) {
{ return 0;
_ssize_t rc; }
rc = write(fd, buf, nbytes); int
return rc; _isatty_r(struct _reent *ptr, int fd)
} {
/* return "not supported" */
int ptr->_errno = ENOTSUP;
_close_r (struct _reent *r, int fd) return -1;
{ }
return close(fd);
} int
_kill_r(struct _reent *ptr, int pid, int sig)
_off_t {
_lseek_r (struct _reent *r, int fd, _off_t offset, int whence) /* return "not supported" */
{ ptr->_errno = ENOTSUP;
_off_t rc; return -1;
}
rc = lseek(fd, offset, whence);
return rc; int
} _link_r(struct _reent *ptr, const char *old, const char *new)
{
int _fstat_r (struct _reent *r, int fd, struct stat *pstat) /* return "not supported" */
{ ptr->_errno = ENOTSUP;
/* return "not supported" */ return -1;
r->_errno = ENOTSUP; }
return -1;
} _off_t
_lseek_r(struct _reent *ptr, int fd, _off_t pos, int whence)
/* {
* memory routine stub _off_t rc;
*/
void * rc = lseek(fd, pos, whence);
_malloc_r (struct _reent *ptr, size_t size) return rc;
{ }
return (void*)rt_malloc (size);
} int
_mkdir_r(struct _reent *ptr, const char *name, int mode)
void * {
_realloc_r (struct _reent *ptr, void *old, size_t newlen) int rc;
{
return (void*)rt_realloc (old, newlen); rc = mkdir(name, mode);
} return rc;
}
void *_calloc_r (struct _reent *ptr, size_t size, size_t len)
{ int
return (void*)rt_calloc (size, len); _open_r(struct _reent *ptr, const char *file, int flags, int mode)
} {
int rc;
void
_free_r (struct _reent *ptr, void *addr) rc = open(file, flags, mode);
{ return rc;
rt_free (addr); }
}
_ssize_t
_read_r(struct _reent *ptr, int fd, void *buf, size_t nbytes)
{
_ssize_t rc;
rc = read(fd, buf, nbytes);
return rc;
}
int
_rename_r(struct _reent *ptr, const char *old, const char *new)
{
int rc;
rc = rename(old, new);
return rc;
}
void *
_sbrk_r(struct _reent *ptr, ptrdiff_t incr)
{
/* no use this routine to get memory */
return RT_NULL;
}
int
_stat_r(struct _reent *ptr, const char *file, struct stat *pstat)
{
int rc;
rc = stat(file, pstat);
return rc;
}
_CLOCK_T_
_times_r(struct _reent *ptr, struct tms *ptms)
{
/* return "not supported" */
ptr->_errno = ENOTSUP;
return -1;
}
int
_unlink_r(struct _reent *ptr, const char *file)
{
int rc;
rc = unlink(file);
return rc;
}
int
_wait_r(struct _reent *ptr, int *status)
{
/* return "not supported" */
ptr->_errno = ENOTSUP;
return -1;
}
_ssize_t
_write_r(struct _reent *ptr, int fd, const void *buf, size_t nbytes)
{
_ssize_t rc;
rc = write(fd, buf, nbytes);
return rc;
}
int
_gettimeofday_r(struct _reent *ptr, struct timeval *__tp, void *__tzp)
{
/* return "not supported" */
ptr->_errno = ENOTSUP;
return -1;
}
/* Memory routine */
void *
_malloc_r (struct _reent *ptr, size_t size)
{
return (void*)rt_malloc (size);
}
void *
_realloc_r (struct _reent *ptr, void *old, size_t newlen)
{
return (void*)rt_realloc (old, newlen);
}
void *_calloc_r (struct _reent *ptr, size_t size, size_t len)
{
return (void*)rt_calloc (size, len);
}
void
_free_r (struct _reent *ptr, void *addr)
{
rt_free (addr);
}