first

rt-thread/components/libc/compilers/musl/SConscript

@@ -0,0 +1,30 @@
+import os
+from building import *
+from gcc import *
+Import('rtconfig')
+
+group = []
+
+musllibc_version = GetMuslVersion(rtconfig)
+
+if musllibc_version:
+    print('Musl version: ' + musllibc_version)
+
+    cwd = GetCurrentDir()
+    src = Glob('*.c')
+
+    CPPPATH = [cwd]
+    CPPDEFINES = ['RT_USING_MUSLLIBC', 'RT_USING_LIBC']
+    LIBS = ['c', 'gcc']
+    LINKFLAGS = ' --specs=kernel.specs'
+    AddDepend(['RT_USING_MUSLLIBC', 'RT_USING_LIBC'])
+
+    group = group + DefineGroup('Compiler', src, depend = [''], CPPPATH = CPPPATH, LINKFLAGS = LINKFLAGS, CPPDEFINES = CPPDEFINES, LIBS = LIBS)
+
+    list = os.listdir(cwd)
+    for d in list:
+        path = os.path.join(cwd, d)
+        if os.path.isfile(os.path.join(path, 'SConscript')):
+            group = group + SConscript(os.path.join(d, 'SConscript'))
+
+Return('group')

rt-thread/components/libc/compilers/musl/fcntl.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021-09-02     Meco Man     First version
+ */
+
+#ifndef __FCNTL_H__
+#define __FCNTL_H__
+
+#include_next <fcntl.h>
+
+#define O_CREAT        0100
+#define O_EXCL         0200
+#define O_NOCTTY       0400
+#define O_TRUNC       01000
+#define O_APPEND      02000
+#define O_NONBLOCK    04000
+#define O_DSYNC      010000
+#define O_SYNC     04010000
+#define O_RSYNC    04010000
+#define O_DIRECTORY  040000
+#define O_NOFOLLOW  0100000
+#define O_CLOEXEC  02000000
+
+#define O_ASYNC      020000
+#define O_DIRECT    0200000
+#define O_LARGEFILE 0400000
+#define O_NOATIME  01000000
+#define O_PATH    010000000
+#define O_TMPFILE 020040000
+#define O_NDELAY O_NONBLOCK
+
+#ifndef O_BINARY
+#define O_BINARY 00
+#endif
+
+#ifndef O_SEARCH
+#define O_SEARCH  O_PATH
+#endif /* O_SEARCH */
+
+#ifndef O_EXEC
+#define O_EXEC    O_PATH
+#endif /* O_EXEC */
+
+#endif

rt-thread/components/libc/compilers/musl/syscalls.c

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2022-11-18     Meco Man     first version
+ */
+
+#include <rtthread.h>
+
+int *__errno_location(void)
+{
+    return _rt_errno();
+}
+int *___errno_location(void)
+{
+    return _rt_errno();
+}