summaryrefslogtreecommitdiff
path: root/components/libc/compilers/gcc
diff options
context:
space:
mode:
Diffstat (limited to 'components/libc/compilers/gcc')
-rw-r--r--components/libc/compilers/gcc/SConscript15
-rw-r--r--components/libc/compilers/gcc/newlib/README.md10
-rw-r--r--components/libc/compilers/gcc/newlib/SConscript28
-rw-r--r--components/libc/compilers/gcc/newlib/libc.c50
-rw-r--r--components/libc/compilers/gcc/newlib/libc.h28
-rw-r--r--components/libc/compilers/gcc/newlib/libc_syms.c52
-rw-r--r--components/libc/compilers/gcc/newlib/machine/time.h12
-rw-r--r--components/libc/compilers/gcc/newlib/stdio.c80
-rw-r--r--components/libc/compilers/gcc/newlib/syscalls.c335
-rw-r--r--components/libc/compilers/gcc/partial/SConscript15
-rw-r--r--components/libc/compilers/gcc/partial/mips/SConscript20
-rw-r--r--components/libc/compilers/gcc/partial/mips/readme.md4
-rw-r--r--components/libc/compilers/gcc/partial/mips/sys/select.h52
-rw-r--r--components/libc/compilers/gcc/partial/readme.md2
14 files changed, 703 insertions, 0 deletions
diff --git a/components/libc/compilers/gcc/SConscript b/components/libc/compilers/gcc/SConscript
new file mode 100644
index 0000000000..4c815c49b8
--- /dev/null
+++ b/components/libc/compilers/gcc/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/gcc/newlib/README.md b/components/libc/compilers/gcc/newlib/README.md
new file mode 100644
index 0000000000..62172e6a55
--- /dev/null
+++ b/components/libc/compilers/gcc/newlib/README.md
@@ -0,0 +1,10 @@
+# NEWLIB (GCC) porting for RT-Thread
+
+Please define RT_USING_LIBC and compile RT-Thread with GCC compiler.
+
+
+
+## More Information
+
+https://sourceware.org/newlib/libc.html#Reentrancy
+
diff --git a/components/libc/compilers/gcc/newlib/SConscript b/components/libc/compilers/gcc/newlib/SConscript
new file mode 100644
index 0000000000..cef546e17c
--- /dev/null
+++ b/components/libc/compilers/gcc/newlib/SConscript
@@ -0,0 +1,28 @@
+from building import *
+Import('rtconfig')
+
+src = []
+cwd = GetCurrentDir()
+group = []
+LIBS = []
+CPPDEFINES = []
+CPPPATH = [cwd]
+
+if rtconfig.PLATFORM == 'gcc':
+ if GetDepend('RT_USING_LIBC'):
+ CPPDEFINES += ['RT_USING_NEWLIB']
+ # link with libc and libm:
+ # libm is a frequently used lib. Newlib is compiled with -ffunction-sections in
+ # recent GCC tool chains. The linker would just link in the functions that have
+ # been referenced. So setting this won't result in bigger text size.
+ LIBS += ['c', 'm']
+
+ src += Glob('*.c')
+ if GetDepend('RT_USING_MODULE') == False:
+ SrcRemove(src, ['libc_syms.c'])
+ else:
+ src += ['syscalls.c']
+
+ group = DefineGroup('libc', src, depend = [], CPPPATH = CPPPATH, CPPDEFINES = CPPDEFINES, LIBS = LIBS)
+
+Return('group')
diff --git a/components/libc/compilers/gcc/newlib/libc.c b/components/libc/compilers/gcc/newlib/libc.c
new file mode 100644
index 0000000000..9834a9a015
--- /dev/null
+++ b/components/libc/compilers/gcc/newlib/libc.c
@@ -0,0 +1,50 @@
+/*
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/time.h>
+
+#include "libc.h"
+
+#ifdef RT_USING_PTHREADS
+#include <pthread.h>
+#endif
+
+int _EXFUN(putenv,(char *__string));
+
+int libc_system_init(void)
+{
+#if defined(RT_USING_DFS) & defined(RT_USING_DFS_DEVFS) & defined(RT_USING_CONSOLE)
+ rt_device_t dev_console;
+
+ dev_console = rt_console_get_device();
+ if (dev_console)
+ {
+ #if defined(RT_USING_POSIX)
+ libc_stdio_set_console(dev_console->parent.name, O_RDWR);
+ #else
+ libc_stdio_set_console(dev_console->parent.name, O_WRONLY);
+ #endif
+ }
+
+ /* set PATH and HOME */
+ putenv("PATH=/bin");
+ putenv("HOME=/home");
+#endif
+
+#if defined RT_USING_PTHREADS && !defined RT_USING_COMPONENTS_INIT
+ pthread_system_init();
+#endif
+
+ return 0;
+}
+INIT_COMPONENT_EXPORT(libc_system_init);
diff --git a/components/libc/compilers/gcc/newlib/libc.h b/components/libc/compilers/gcc/newlib/libc.h
new file mode 100644
index 0000000000..c470698aa6
--- /dev/null
+++ b/components/libc/compilers/gcc/newlib/libc.h
@@ -0,0 +1,28 @@
+/*
+ * 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
+ */
+#ifndef __RTT_LIBC_H__
+#define __RTT_LIBC_H__
+
+#ifndef _EXFUN
+#define _EXFUN(name, proto) name proto
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+int libc_system_init(void);
+int libc_stdio_get_console(void);
+int libc_stdio_set_console(const char* device_name, int mode);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/components/libc/compilers/gcc/newlib/libc_syms.c b/components/libc/compilers/gcc/newlib/libc_syms.c
new file mode 100644
index 0000000000..aaf6980d6b
--- /dev/null
+++ b/components/libc/compilers/gcc/newlib/libc_syms.c
@@ -0,0 +1,52 @@
+/*
+ * 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/gcc/newlib/machine/time.h b/components/libc/compilers/gcc/newlib/machine/time.h
new file mode 100644
index 0000000000..ff754d2473
--- /dev/null
+++ b/components/libc/compilers/gcc/newlib/machine/time.h
@@ -0,0 +1,12 @@
+#ifndef _MACHTIME_H_
+#define _MACHTIME_H_
+
+#include <rtconfig.h>
+#define _CLOCKS_PER_SEC_ RT_TICK_PER_SECOND
+
+#ifdef __SPU__
+#include <sys/_timespec.h>
+int nanosleep (const struct timespec *, struct timespec *);
+#endif
+
+#endif /* _MACHTIME_H_ */
diff --git a/components/libc/compilers/gcc/newlib/stdio.c b/components/libc/compilers/gcc/newlib/stdio.c
new file mode 100644
index 0000000000..baccafad87
--- /dev/null
+++ b/components/libc/compilers/gcc/newlib/stdio.c
@@ -0,0 +1,80 @@
+/*
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <rtthread.h>
+#include "libc.h"
+
+#define STDIO_DEVICE_NAME_MAX 32
+
+int _EXFUN(fileno, (FILE *));
+
+static FILE* std_console = NULL;
+
+int libc_stdio_set_console(const char* device_name, int mode)
+{
+ FILE *fp;
+ char name[STDIO_DEVICE_NAME_MAX];
+ char *file_mode;
+
+ snprintf(name, sizeof(name) - 1, "/dev/%s", device_name);
+ name[STDIO_DEVICE_NAME_MAX - 1] = '\0';
+
+ if (mode == O_RDWR) file_mode = "r+";
+ else if (mode == O_WRONLY) file_mode = "wb";
+ else file_mode = "rb";
+
+ fp = fopen(name, file_mode);
+ if (fp)
+ {
+ setvbuf(fp, NULL, _IONBF, 0);
+
+ if (std_console)
+ {
+ fclose(std_console);
+ std_console = NULL;
+ }
+ std_console = fp;
+
+ if (mode == O_RDWR)
+ {
+ _GLOBAL_REENT->_stdin = std_console;
+ }
+ else
+ {
+ _GLOBAL_REENT->_stdin = NULL;
+ }
+
+ if (mode == O_RDONLY)
+ {
+ _GLOBAL_REENT->_stdout = NULL;
+ _GLOBAL_REENT->_stderr = NULL;
+ }
+ else
+ {
+ _GLOBAL_REENT->_stdout = std_console;
+ _GLOBAL_REENT->_stderr = std_console;
+ }
+
+ _GLOBAL_REENT->__sdidinit = 1;
+ }
+
+ if (std_console) return fileno(std_console);
+
+ return -1;
+}
+
+int libc_stdio_get_console(void) {
+ if (std_console)
+ return fileno(std_console);
+ else
+ return -1;
+}
diff --git a/components/libc/compilers/gcc/newlib/syscalls.c b/components/libc/compilers/gcc/newlib/syscalls.c
new file mode 100644
index 0000000000..f5a2c16ecc
--- /dev/null
+++ b/components/libc/compilers/gcc/newlib/syscalls.c
@@ -0,0 +1,335 @@
+/*
+ * 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 <stddef.h>
+#include <unistd.h>
+#include <sys/errno.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 or RT_USING_LIBC");
+ 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. */
+}
+
+#ifdef RT_USING_LIBC
+#include <reent.h>
+#include <stdio.h>
+#include "libc.h"
+#ifdef RT_USING_DFS
+#include <dfs_posix.h>
+#endif
+#ifdef RT_USING_MODULE
+#include <dlmodule.h>
+#endif
+
+/* 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)
+{
+#ifndef RT_USING_DFS
+ /* return "not supported" */
+ ptr->_errno = ENOTSUP;
+ return -1;
+#else
+ return close(fd);
+#endif
+}
+
+int _execve_r(struct _reent *ptr, const char * name, char *const *argv, char *const *env)
+{
+ /* return "not supported" */
+ ptr->_errno = ENOTSUP;
+ return -1;
+}
+
+int _fcntl_r(struct _reent *ptr, int fd, int cmd, int arg)
+{
+ /* return "not supported" */
+ ptr->_errno = ENOTSUP;
+ return -1;
+}
+
+int _fork_r(struct _reent *ptr)
+{
+ /* return "not supported" */
+ ptr->_errno = ENOTSUP;
+ return -1;
+}
+
+int _fstat_r(struct _reent *ptr, int fd, struct stat *pstat)
+{
+ /* return "not supported" */
+ 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)
+{
+ /* return "not supported" */
+ ptr->_errno = ENOTSUP;
+ return -1;
+}
+
+int _link_r(struct _reent *ptr, const char *old, const char *new)
+{
+ /* return "not supported" */
+ ptr->_errno = ENOTSUP;
+ return -1;
+}
+
+_off_t _lseek_r(struct _reent *ptr, int fd, _off_t pos, int whence)
+{
+#ifndef RT_USING_DFS
+ /* return "not supported" */
+ ptr->_errno = ENOTSUP;
+ return -1;
+#else
+ _off_t rc;
+
+ rc = lseek(fd, pos, whence);
+ return rc;
+#endif
+}
+
+int _mkdir_r(struct _reent *ptr, const char *name, int mode)
+{
+#ifndef RT_USING_DFS
+ /* return "not supported" */
+ ptr->_errno = ENOTSUP;
+ return -1;
+#else
+ int rc;
+
+ rc = mkdir(name, mode);
+ return rc;
+#endif
+}
+
+int _open_r(struct _reent *ptr, const char *file, int flags, int mode)
+{
+#ifndef RT_USING_DFS
+ /* return "not supported" */
+ ptr->_errno = ENOTSUP;
+ return -1;
+#else
+ int rc;
+
+ rc = open(file, flags, mode);
+ return rc;
+#endif
+}
+
+_ssize_t _read_r(struct _reent *ptr, int fd, void *buf, size_t nbytes)
+{
+#ifndef RT_USING_DFS
+ /* return "not supported" */
+ ptr->_errno = ENOTSUP;
+ return -1;
+#else
+ _ssize_t rc;
+ if (libc_stdio_get_console() < 0 && fd == STDIN_FILENO)
+ {
+ LOG_W("Do not invoke standard input before initializing libc");
+ return 0;
+ }
+ rc = read(fd, buf, nbytes);
+ return rc;
+#endif
+}
+
+int _rename_r(struct _reent *ptr, const char *old, const char *new)
+{
+#ifndef RT_USING_DFS
+ /* return "not supported" */
+ ptr->_errno = ENOTSUP;
+ return -1;
+#else
+ int rc;
+
+ rc = rename(old, new);
+ return rc;
+#endif
+}
+
+int _stat_r(struct _reent *ptr, const char *file, struct stat *pstat)
+{
+#ifndef RT_USING_DFS
+ /* return "not supported" */
+ ptr->_errno = ENOTSUP;
+ return -1;
+#else
+ int rc;
+
+ rc = stat(file, pstat);
+ return rc;
+#endif
+}
+
+int _unlink_r(struct _reent *ptr, const char *file)
+{
+#ifndef RT_USING_DFS
+ /* return "not supported" */
+ ptr->_errno = ENOTSUP;
+ return -1;
+#else
+ return unlink(file);
+#endif
+}
+
+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)
+{
+#ifndef RT_USING_DFS
+#if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
+ if (STDOUT_FILENO == fd)
+ {
+ rt_device_t console;
+
+ console = rt_console_get_device();
+ if (console) return rt_device_write(console, -1, buf, nbytes);
+ }
+
+ return 0;
+#else
+ /* return "not supported" */
+ ptr->_errno = ENOTSUP;
+ return -1;
+#endif /*RT_USING_DEVICE*/
+#else
+ _ssize_t rc;
+ if (libc_stdio_get_console() < 0 && fd == STDOUT_FILENO)
+ {
+ LOG_W("Do not invoke standard output before initializing libc");
+ return 0;
+ }
+ rc = write(fd, buf, nbytes);
+ return rc;
+#endif
+}
+
+/* for exit() and abort() */
+__attribute__ ((noreturn)) void _exit (int status)
+{
+ extern void __rt_libc_exit(int status);
+ __rt_libc_exit(status);
+ while(1);
+}
+
+mode_t umask(mode_t mask)
+{
+ return 022;
+}
+
+int flock(int fd, int operation)
+{
+ return 0;
+}
+
+/*
+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);
+*/
+
+#endif /* RT_USING_LIBC */
diff --git a/components/libc/compilers/gcc/partial/SConscript b/components/libc/compilers/gcc/partial/SConscript
new file mode 100644
index 0000000000..4c815c49b8
--- /dev/null
+++ b/components/libc/compilers/gcc/partial/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/gcc/partial/mips/SConscript b/components/libc/compilers/gcc/partial/mips/SConscript
new file mode 100644
index 0000000000..7651233d46
--- /dev/null
+++ b/components/libc/compilers/gcc/partial/mips/SConscript
@@ -0,0 +1,20 @@
+from shutil import copy
+from building import *
+
+Import('rtconfig')
+
+src = []
+cwd = GetCurrentDir()
+CPPPATH = [cwd]
+group = []
+
+if rtconfig.PLATFORM == 'gcc' and ('mips' in rtconfig.PREFIX): # identify mips gcc tool chain
+ try:
+ # There is no 'sys/select.h' in tthe mips gcc toolchain; it will be copied from 'nogcc/sys/select.h'
+ copy("../../../common/nogcc/sys/select.h", "./sys/select.h")
+ except:
+ pass
+
+ group = DefineGroup('libc', src, depend = [], CPPPATH = CPPPATH)
+
+Return('group')
diff --git a/components/libc/compilers/gcc/partial/mips/readme.md b/components/libc/compilers/gcc/partial/mips/readme.md
new file mode 100644
index 0000000000..a3eeb06c5d
--- /dev/null
+++ b/components/libc/compilers/gcc/partial/mips/readme.md
@@ -0,0 +1,4 @@
+These files don't exist in the mips gcc toolchain. They will be generated by scons automatically , and **DO NOT** change them:
+
+- sys/select.h
+
diff --git a/components/libc/compilers/gcc/partial/mips/sys/select.h b/components/libc/compilers/gcc/partial/mips/sys/select.h
new file mode 100644
index 0000000000..575ad3a1b5
--- /dev/null
+++ b/components/libc/compilers/gcc/partial/mips/sys/select.h
@@ -0,0 +1,52 @@
+/*
+ * 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>
+
+#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 */
+
+#define NBBY 8 /* number of bits in a byte */
+
+typedef long fd_mask;
+
+#define NFDBITS (sizeof (fd_mask) * NBBY) /* bits per mask */
+#ifndef howmany
+#define howmany(x,y) (((x)+((y)-1))/(y))
+#endif
+
+#ifndef _SYS_TYPES_FD_SET /* MIPS */
+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 /* __SYS_SELECT_H__ */
diff --git a/components/libc/compilers/gcc/partial/readme.md b/components/libc/compilers/gcc/partial/readme.md
new file mode 100644
index 0000000000..959fc29f35
--- /dev/null
+++ b/components/libc/compilers/gcc/partial/readme.md
@@ -0,0 +1,2 @@
+This folder is for some particular targets.
+
generated by cgit v1.3.1 (git 2.54.0) at 2026-10-30 17:19:49 +0000