diff options
| author | bernard.xiong <[email protected]> | 2010-10-22 10:20:38 +0000 |
|---|---|---|
| committer | bernard.xiong <[email protected]> | 2010-10-22 10:20:38 +0000 |
| commit | a6f06d24cfec32dddee27a1ce61920fc4007d68a (patch) | |
| tree | 7358e8edb966c99549dc264def493e9550070d61 /components/libc | |
| parent | 363ad228a434f7b06cfa7170cf390c1177d731dc (diff) | |
add stdin, stdout, stderr implementation in newlib.
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1029 bbd45198-f89e-11dd-88c7-29a3b14d5316
Diffstat (limited to 'components/libc')
| -rw-r--r-- | components/libc/newlib/libc.c | 20 | ||||
| -rw-r--r-- | components/libc/newlib/libc.h | 6 | ||||
| -rw-r--r-- | components/libc/newlib/syscalls.c | 17 |
3 files changed, 43 insertions, 0 deletions
diff --git a/components/libc/newlib/libc.c b/components/libc/newlib/libc.c new file mode 100644 index 0000000000..1f8d7221f0 --- /dev/null +++ b/components/libc/newlib/libc.c @@ -0,0 +1,20 @@ +#include <rtthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+
+void libc_system_init(const char* tty_name)
+{
+ int fd;
+
+ /* init console device */
+ rt_console_init(tty_name);
+
+ /* open console as stdin/stdout/stderr */
+ fd = open("/dev/console", O_RDONLY, 0); /* for stdin */
+ rt_kprintf("stdin: %d\n", fd);
+ fd = open("/dev/console", O_WRONLY, 0); /* for stdout */
+ rt_kprintf("stdout: %d\n", fd);
+ fd = open("/dev/console", O_WRONLY, 0); /* for stderr */
+ rt_kprintf("stderr: %d\n", fd);
+}
diff --git a/components/libc/newlib/libc.h b/components/libc/newlib/libc.h new file mode 100644 index 0000000000..b21a7264b3 --- /dev/null +++ b/components/libc/newlib/libc.h @@ -0,0 +1,6 @@ +#ifndef __RTT_LIBC_H__
+#define __RTT_LIBC_H__
+
+void libc_system_init(const char* tty_name);
+
+#endif
diff --git a/components/libc/newlib/syscalls.c b/components/libc/newlib/syscalls.c index 3625f2d234..93d96fe165 100644 --- a/components/libc/newlib/syscalls.c +++ b/components/libc/newlib/syscalls.c @@ -51,6 +51,8 @@ _getpid_r(struct _reent *ptr) int
_isatty_r(struct _reent *ptr, int fd)
{
+ if (fd >=0 && fd < 3) return 1;
+
/* return "not supported" */
ptr->_errno = ENOTSUP;
return -1;
@@ -198,3 +200,18 @@ _free_r (struct _reent *ptr, void *addr) {
rt_free (addr);
}
+
+#ifdef RT_USING_FINSH
+#include <finsh.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+void nltest()
+{
+ printf("stdout test!!\n");
+ fprintf(stdout, "fprintf test!!\n");
+ fprintf(stderr, "fprintf test!!\n");
+}
+FINSH_FUNCTION_EXPORT(nltest, newlib test);
+#endif
+
|