[libc] 调整文件结构

10 files changed, 563 insertions, 0 deletions

diff --git a/components/libc/compilers/newlib/README.md b/components/libc/compilers/newlib/README.md
new file mode 100644
index 0000000000..4614375b45
--- /dev/null
+++ b/components/libc/compilers/newlib/README.md
@@ -0,0 +1,4 @@
+# NEWLIB (GCC) porting for RT-Thread
+
+https://sourceware.org/newlib/libc.html#Reentrancy
+
diff --git a/components/libc/compilers/newlib/SConscript b/components/libc/compilers/newlib/SConscript
new file mode 100644
index 0000000000..8076a73727
--- /dev/null
+++ b/components/libc/compilers/newlib/SConscript
@@ -0,0 +1,31 @@
+import os
+from building import *
+from gcc import *
+Import('rtconfig')
+
+src = []
+cwd = GetCurrentDir()
+group = []
+LIBS = ['m'] # link libm
+CPPPATH = [cwd]
+
+if rtconfig.PLATFORM == 'gcc':
+    LIBS += ['c'] # link libc
+    src += Glob('*.c')
+
+    #report newlib version
+    print('Newlib version:' + GetNewLibVersion(rtconfig))
+
+    # identify this is Newlib, and only enable POSIX.1-1990
+    CPPDEFINES = ['RT_USING_NEWLIB', '_POSIX_C_SOURCE=1']
+
+    group = DefineGroup('Compiler', src, depend = [''], CPPPATH = CPPPATH, 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')
diff --git a/components/libc/compilers/newlib/fcntl.h b/components/libc/compilers/newlib/fcntl.h
new file mode 100644
index 0000000000..847ae3d35b
--- /dev/null
+++ b/components/libc/compilers/newlib/fcntl.h
@@ -0,0 +1,24 @@
+/*
+ * 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 <sys/_default_fcntl.h>
+
+#ifndef O_DIRECTORY
+#define O_DIRECTORY 0x200000
+#endif
+
+#ifndef O_BINARY
+#define O_BINARY 0x10000
+#endif
+
+#endif
diff --git a/components/libc/compilers/newlib/legacy/SConscript b/components/libc/compilers/newlib/legacy/SConscript
new file mode 100644
index 0000000000..4c815c49b8
--- /dev/null
+++ b/components/libc/compilers/newlib/legacy/SConscript
@@ -0,0 +1,15 @@
+# RT-Thread building script for bridge
+
+import os
+from building import *
+
+cwd = GetCurrentDir()
+objs = []
+list = os.listdir(cwd)
+
+for d in list:
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        objs = objs + SConscript(os.path.join(d, 'SConscript'))
+
+Return('objs')
diff --git a/components/libc/compilers/newlib/legacy/_select/SConscript b/components/libc/compilers/newlib/legacy/_select/SConscript
new file mode 100644
index 0000000000..b7bd86a36c
--- /dev/null
+++ b/components/libc/compilers/newlib/legacy/_select/SConscript
@@ -0,0 +1,20 @@
+from shutil import copy
+from building import *
+from gcc import *
+Import('rtconfig')
+
+src   = []
+cwd   = GetCurrentDir()
+CPPPATH = [cwd]
+group = []
+
+# sys/select.h does not exist in newlib 2.1.0 or lower version
+if rtconfig.PLATFORM == 'gcc' and (CheckHeader(rtconfig, 'sys/select.h') == False):
+    try:
+        copy("../../../../common/nogcc/sys/select.h", "./sys/select.h") # copy from 'nogcc/sys/select.h'
+    except:
+        pass
+
+    group = DefineGroup('Compiler', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')
diff --git a/components/libc/compilers/newlib/legacy/_select/readme.md b/components/libc/compilers/newlib/legacy/_select/readme.md
new file mode 100644
index 0000000000..4ad9f21923
--- /dev/null
+++ b/components/libc/compilers/newlib/legacy/_select/readme.md
@@ -0,0 +1,2 @@
+Newlib 2.2.0 or lower version does not provide `sys/select.h`, and `fd_set` is defined in `sys/types.h`. It will be generated by scons automatically, and **DO NOT** change it.
+
diff --git a/components/libc/compilers/newlib/legacy/_select/sys/select.h b/components/libc/compilers/newlib/legacy/_select/sys/select.h
new file mode 100644
index 0000000000..02fb77dd89
--- /dev/null
+++ b/components/libc/compilers/newlib/legacy/_select/sys/select.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021-07-21     Meco Man     The first version
+ */
+
+#ifndef __SYS_SELECT_H__
+#define __SYS_SELECT_H__
+
+#include <rtconfig.h>
+#include <sys/types.h>
+#include <sys/time.h>
+
+#ifdef _WIN32
+#include <winsock.h>
+#endif
+
+#ifndef  FD_SETSIZE
+#define  FD_SETSIZE  32
+#endif
+
+#ifdef SAL_USING_POSIX
+#ifdef FD_SETSIZE
+#undef FD_SETSIZE
+#endif
+#define FD_SETSIZE      DFS_FD_MAX
+#endif /* SAL_USING_POSIX */
+
+typedef long    fd_mask;
+
+#ifndef _WIN32
+#ifndef _SYS_TYPES_FD_SET /* MIPS */
+
+#define   NBBY    8       /* number of bits in a byte */
+#define   NFDBITS (sizeof (fd_mask) * NBBY)   /* bits per mask */
+#ifndef   howmany
+#define   howmany(x,y)    (((x)+((y)-1))/(y))
+#endif
+
+typedef struct _types_fd_set {
+    fd_mask fds_bits[howmany(FD_SETSIZE, NFDBITS)];
+} _types_fd_set;
+#define fd_set _types_fd_set
+
+#define FD_SET(n, p)    ((p)->fds_bits[(n)/NFDBITS] |= (1L << ((n) % NFDBITS)))
+#define FD_CLR(n, p)    ((p)->fds_bits[(n)/NFDBITS] &= ~(1L << ((n) % NFDBITS)))
+#define FD_ISSET(n, p)  ((p)->fds_bits[(n)/NFDBITS] & (1L << ((n) % NFDBITS)))
+#define FD_ZERO(p)      memset((void*)(p), 0, sizeof(*(p)))
+#endif /* _SYS_TYPES_FD_SET */
+
+int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout);
+#endif /* _WIN32 */
+
+#endif /* __SYS_SELECT_H__ */
diff --git a/components/libc/compilers/newlib/libc_syms.c b/components/libc/compilers/newlib/libc_syms.c
new file mode 100644
index 0000000000..e6ca23b393
--- /dev/null
+++ b/components/libc/compilers/newlib/libc_syms.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017/10/15     bernard      the first version
+ */
+
+#include <rtthread.h>
+#include <rtm.h>
+
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+RTM_EXPORT(strcpy);
+RTM_EXPORT(strncpy);
+RTM_EXPORT(strlen);
+RTM_EXPORT(strcat);
+RTM_EXPORT(strstr);
+RTM_EXPORT(strchr);
+RTM_EXPORT(strcmp);
+RTM_EXPORT(strtol);
+RTM_EXPORT(strtoul);
+RTM_EXPORT(strncmp);
+
+RTM_EXPORT(memcpy);
+RTM_EXPORT(memcmp);
+RTM_EXPORT(memmove);
+RTM_EXPORT(memset);
+RTM_EXPORT(memchr);
+
+RTM_EXPORT(putchar);
+RTM_EXPORT(puts);
+RTM_EXPORT(printf);
+RTM_EXPORT(sprintf);
+RTM_EXPORT(snprintf);
+
+RTM_EXPORT(fwrite);
+
+#include <setjmp.h>
+RTM_EXPORT(longjmp);
+RTM_EXPORT(setjmp);
+
+RTM_EXPORT(exit);
+RTM_EXPORT(abort);
+
+RTM_EXPORT(rand);
+
+#include <assert.h>
+RTM_EXPORT(__assert_func);
diff --git a/components/libc/compilers/newlib/machine/time.h b/components/libc/compilers/newlib/machine/time.h
new file mode 100644
index 0000000000..805b061aea
--- /dev/null
+++ b/components/libc/compilers/newlib/machine/time.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021-02-16     Meco Man     The first version
+ */
+
+#ifndef _MACHTIME_H_
+#define _MACHTIME_H_
+
+#include <rtconfig.h>
+#define _CLOCKS_PER_SEC_   RT_TICK_PER_SECOND
+
+#endif  /* _MACHTIME_H_ */
diff --git a/components/libc/compilers/newlib/syscalls.c b/components/libc/compilers/newlib/syscalls.c
new file mode 100644
index 0000000000..dcf26ccfb7
--- /dev/null
+++ b/components/libc/compilers/newlib/syscalls.c
@@ -0,0 +1,339 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021-02-11     Meco Man     remove _gettimeofday_r() and _times_r()
+ * 2020-02-13     Meco Man     re-implement exit() and abort()
+ * 2020-02-21     Meco Man     improve and beautify syscalls
+ * 2020-02-24     Meco Man     fix bug of _isatty_r()
+ */
+
+#include <reent.h>
+#include <rtthread.h>
+#include <stdio.h>
+#include <string.h>
+#include <stddef.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/errno.h>
+#include <sys/stat.h>
+#ifdef RT_USING_POSIX_STDIO
+#include "libc.h"
+#endif /* RT_USING_POSIX_STDIO */
+#ifdef RT_USING_MODULE
+#include <dlmodule.h>
+#endif /* RT_USING_MODULE */
+#include <compiler_private.h>
+#define DBG_TAG    "newlib.syscalls"
+#define DBG_LVL    DBG_INFO
+#include <rtdbg.h>
+
+#ifdef RT_USING_HEAP /* Memory routine */
+void *_malloc_r (struct _reent *ptr, size_t size)
+{
+    void* result;
+
+    result = (void*)rt_malloc (size);
+    if (result == RT_NULL)
+    {
+        ptr->_errno = ENOMEM;
+    }
+
+    return result;
+}
+
+void *_realloc_r (struct _reent *ptr, void *old, size_t newlen)
+{
+    void* result;
+
+    result = (void*)rt_realloc (old, newlen);
+    if (result == RT_NULL)
+    {
+        ptr->_errno = ENOMEM;
+    }
+
+    return result;
+}
+
+void *_calloc_r (struct _reent *ptr, size_t size, size_t len)
+{
+    void* result;
+
+    result = (void*)rt_calloc (size, len);
+    if (result == RT_NULL)
+    {
+        ptr->_errno = ENOMEM;
+    }
+
+    return result;
+}
+
+void _free_r (struct _reent *ptr, void *addr)
+{
+    rt_free (addr);
+}
+
+#else
+void *
+_sbrk_r(struct _reent *ptr, ptrdiff_t incr)
+{
+    LOG_E("Please enable RT_USING_HEAP");
+    RT_ASSERT(0);
+    return RT_NULL;
+}
+#endif /*RT_USING_HEAP*/
+
+void __libc_init_array(void)
+{
+    /* we not use __libc init_aray to initialize C++ objects */
+    /* __libc_init_array is ARM code, not Thumb; it will cause a hardfault. */
+}
+
+/* Reentrant versions of system calls.  */
+#ifndef _REENT_ONLY
+int *__errno ()
+{
+  return _rt_errno();
+}
+#endif
+
+int _getpid_r(struct _reent *ptr)
+{
+    return 0;
+}
+
+int _close_r(struct _reent *ptr, int fd)
+{
+#ifdef DFS_USING_POSIX
+    return close(fd);
+#else
+    LOG_W("%s: %s", __func__, _WARNING_WITHOUT_FS);
+    ptr->_errno = ENOTSUP;
+    return -1;
+#endif /* DFS_USING_POSIX */
+}
+
+int _execve_r(struct _reent *ptr, const char * name, char *const *argv, char *const *env)
+{
+    ptr->_errno = ENOTSUP;
+    return -1;
+}
+
+int _fcntl_r(struct _reent *ptr, int fd, int cmd, int arg)
+{
+    ptr->_errno = ENOTSUP;
+    return -1;
+}
+
+int _fork_r(struct _reent *ptr)
+{
+    ptr->_errno = ENOTSUP;
+    return -1;
+}
+
+int _fstat_r(struct _reent *ptr, int fd, struct stat *pstat)
+{
+    ptr->_errno = ENOTSUP;
+    return -1;
+}
+
+int _isatty_r(struct _reent *ptr, int fd)
+{
+    if (fd >=0 && fd < 3)
+    {
+        return 1;
+    }
+    else
+    {
+        return 0;
+    }
+}
+
+int _kill_r(struct _reent *ptr, int pid, int sig)
+{
+    ptr->_errno = ENOTSUP;
+    return -1;
+}
+
+int _link_r(struct _reent *ptr, const char *old, const char *new)
+{
+    ptr->_errno = ENOTSUP;
+    return -1;
+}
+
+int _wait_r(struct _reent *ptr, int *status)
+{
+    ptr->_errno = ENOTSUP;
+    return -1;
+}
+
+mode_t umask(mode_t mask)
+{
+    return 022;
+}
+
+int flock(int fd, int operation)
+{
+    return 0;
+}
+
+_off_t _lseek_r(struct _reent *ptr, int fd, _off_t pos, int whence)
+{
+#ifdef DFS_USING_POSIX
+    _off_t rc;
+    rc = lseek(fd, pos, whence);
+    return rc;
+#else
+    LOG_W("%s: %s", __func__, _WARNING_WITHOUT_FS);
+    ptr->_errno = ENOTSUP;
+    return -1;
+#endif /* DFS_USING_POSIX */
+}
+
+int _mkdir_r(struct _reent *ptr, const char *name, int mode)
+{
+#ifdef DFS_USING_POSIX
+    int rc;
+    rc = mkdir(name, mode);
+    return rc;
+#else
+    LOG_W("%s: %s", __func__, _WARNING_WITHOUT_FS);
+    ptr->_errno = ENOTSUP;
+    return -1;
+#endif /* DFS_USING_POSIX */
+}
+
+int _open_r(struct _reent *ptr, const char *file, int flags, int mode)
+{
+#ifdef DFS_USING_POSIX
+    int rc;
+    rc = open(file, flags, mode);
+    return rc;
+#else
+    LOG_W("%s: %s", __func__, _WARNING_WITHOUT_FS);
+    ptr->_errno = ENOTSUP;
+    return -1;
+#endif /* DFS_USING_POSIX */
+}
+
+_ssize_t _read_r(struct _reent *ptr, int fd, void *buf, size_t nbytes)
+{
+#ifdef DFS_USING_POSIX
+    _ssize_t rc;
+    if (fd == STDIN_FILENO)
+    {
+#ifdef RT_USING_POSIX_STDIO
+        if (libc_stdio_get_console() < 0)
+        {
+            LOG_W("Do not invoke standard input before initializing Compiler");
+            return 0;
+        }
+#else
+        LOG_W("%s: %s", __func__, _WARNING_WITHOUT_STDIO);
+        ptr->_errno = ENOTSUP;
+        return -1;
+#endif /* RT_USING_POSIX_STDIO */
+    }
+    else if (fd == STDOUT_FILENO || fd == STDERR_FILENO)
+    {
+        ptr->_errno = ENOTSUP;
+        return -1;
+    }
+
+    rc = read(fd, buf, nbytes);
+    return rc;
+#else
+    LOG_W("%s: %s", __func__, _WARNING_WITHOUT_FS);
+    ptr->_errno = ENOTSUP;
+    return -1;
+#endif /* DFS_USING_POSIX */
+}
+
+int _rename_r(struct _reent *ptr, const char *old, const char *new)
+{
+#ifdef DFS_USING_POSIX
+    int rc;
+    rc = rename(old, new);
+    return rc;
+#else
+    LOG_W("%s: %s", __func__, _WARNING_WITHOUT_FS);
+    ptr->_errno = ENOTSUP;
+    return -1;
+#endif /* DFS_USING_POSIX */
+}
+
+int _stat_r(struct _reent *ptr, const char *file, struct stat *pstat)
+{
+#ifdef DFS_USING_POSIX
+    int rc;
+    rc = stat(file, pstat);
+    return rc;
+#else
+    LOG_W("%s: %s", __func__, _WARNING_WITHOUT_FS);
+    ptr->_errno = ENOTSUP;
+    return -1;
+#endif /* DFS_USING_POSIX */
+}
+
+int _unlink_r(struct _reent *ptr, const char *file)
+{
+#ifdef DFS_USING_POSIX
+    return unlink(file);
+#else
+    LOG_W("%s: %s", __func__, _WARNING_WITHOUT_FS);
+    ptr->_errno = ENOTSUP;
+    return -1;
+#endif /* DFS_USING_POSIX */
+}
+
+_ssize_t _write_r(struct _reent *ptr, int fd, const void *buf, size_t nbytes)
+{
+#ifdef DFS_USING_POSIX
+    _ssize_t rc;
+#endif /* DFS_USING_POSIX */
+
+    if (fd == STDOUT_FILENO || fd == STDERR_FILENO)
+    {
+#if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
+        rt_device_t console;
+
+        console = rt_console_get_device();
+        if (console)
+            return rt_device_write(console, -1, buf, nbytes);
+#else
+        ptr->_errno = ENOTSUP;
+        return -1;
+#endif /* defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE) */
+    }
+    else if (fd == STDIN_FILENO)
+    {
+        ptr->_errno = ENOTSUP;
+        return -1;
+    }
+
+#ifdef DFS_USING_POSIX
+    rc = write(fd, buf, nbytes);
+    return rc;
+#else
+    LOG_W("%s: %s", __func__, _WARNING_WITHOUT_FS);
+    ptr->_errno = ENOTSUP;
+    return -1;
+#endif /* DFS_USING_POSIX */
+}
+
+/* for exit() and abort() */
+__attribute__ ((noreturn)) void _exit (int status)
+{
+    extern void __rt_libc_exit(int status);
+    __rt_libc_exit(status);
+    while(1);
+}
+
+/*
+These functions are implemented and replaced by the 'common/time.c' file
+int _gettimeofday_r(struct _reent *ptr, struct timeval *__tp, void *__tzp);
+_CLOCK_T_  _times_r(struct _reent *ptr, struct tms *ptms);
+*/