fix(newlib): adapt changes

components/newlib/platform_include/ctype.h

@@ -0,0 +1,41 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#include "sdkconfig.h"
+#include_next <ctype.h>
+
+#if CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
+#ifndef _U
+#define _U __CTYPE_UPPER
+#endif
+
+#ifndef _L
+#define _L __CTYPE_LOWER
+#endif
+
+#ifndef _N
+#define _N __CTYPE_DIGIT
+#endif
+
+#ifndef _S
+#define _S __CTYPE_SPACE
+#endif
+
+#ifndef _P
+#define _P __CTYPE_PUNCT
+#endif
+
+#ifndef _C
+#define _C __CTYPE_CNTRL
+#endif
+
+#ifndef _X
+#define _X __CTYPE_HEX
+#endif
+
+#ifndef _B
+#define _B __CTYPE_BLANK
+#endif
+#endif

components/newlib/platform_include/stdatomic.h

@@ -0,0 +1,20 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#pragma once
+#include_next <stdatomic.h>
+
+/* The ATOMIC_VAR_INIT macro was deprecated in:
+ *  - C17
+ *  - C++20
+ * and removed in subsequent standards.
+ * Since users may change the standard version for their projects,
+ * IDF should remain compatible across different standards.
+ */
+#if __STDC_VERSION__ > 201710L || __cplusplus > 202002L
+# ifndef ATOMIC_VAR_INIT
+#   define ATOMIC_VAR_INIT(val) (val)
+# endif
+#endif

components/newlib/platform_include/sys/dirent.h

@@ -1,70 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-#ifdef __clang__ // TODO LLVM-330
-#pragma once
-
-#include <stddef.h>
-#include <stdint.h>
-#include <sys/types.h>
-
-/**
- * This header file provides POSIX-compatible definitions of directory
- * access data types. Starting with newlib 3.3, related functions are defined
- * in 'dirent.h' bundled with newlib.
- * See http://pubs.opengroup.org/onlinepubs/7908799/xsh/dirent.h.html
- * for reference.
- */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * @brief Opaque directory structure
- */
-typedef struct {
-    uint16_t dd_vfs_idx; /*!< VFS index, not to be used by applications */
-    uint16_t dd_rsv;     /*!< field reserved for future extension */
-    /* remaining fields are defined by VFS implementation */
-} DIR;
-
-/**
- * @brief Directory entry structure
- */
-struct dirent {
-    ino_t d_ino;          /*!< file number */
-    uint8_t d_type;     /*!< not defined in POSIX, but present in BSD and Linux */
-#define DT_UNKNOWN  0
-#define DT_REG      1
-#define DT_DIR      2
-#if __BSD_VISIBLE
-#define MAXNAMLEN 255
-    char d_name[MAXNAMLEN + 1]; /*!< zero-terminated file name */
-#else
-    char d_name[256];
-#endif
-};
-
-DIR* opendir(const char* name);
-struct dirent* readdir(DIR* pdir);
-long telldir(DIR* pdir);
-void seekdir(DIR* pdir, long loc);
-void rewinddir(DIR* pdir);
-int closedir(DIR* pdir);
-int readdir_r(DIR* pdir, struct dirent* entry, struct dirent** out_dirent);
-int scandir(const char *dirname, struct dirent ***out_dirlist,
-            int (*select_func)(const struct dirent *),
-            int (*cmp_func)(const struct dirent **, const struct dirent **));
-int alphasort(const struct dirent **d1, const struct dirent **d2);
-
-#ifdef __cplusplus
-}
-#endif
-
-#else // __clang__ TODO: IDF-10675
-#include_next <sys/dirent.h>
-#include <dirent.h>
-#endif // __clang__

components/newlib/platform_include/sys/lock.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -12,7 +12,7 @@
 extern "C" {
 #endif
 
-#ifdef _RETARGETABLE_LOCKING
+#if defined(_RETARGETABLE_LOCKING) || defined(CONFIG_LIBC_PICOLIBC)
 
 /* Actual platfrom-specific definition of struct __lock.
  * The size here should be sufficient for a FreeRTOS mutex.
@@ -52,10 +52,6 @@ int _lock_try_acquire_recursive(_lock_t *plock);
 void _lock_release(_lock_t *plock);
 void _lock_release_recursive(_lock_t *plock);
 
-#if CONFIG_LIBC_PICOLIBC
-#define __lock_try_acquire(lock) _lock_try_acquire(&(lock))
-#define __lock_try_acquire_recursive(lock) _lock_try_acquire_recursive(&(lock))
-#endif // CONFIG_LIBC_PICOLIBC
 #endif // _RETARGETABLE_LOCKING
 
 #ifdef __cplusplus

components/newlib/platform_include/sys/select.h

@@ -26,6 +26,10 @@ int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *errorfds, struct
 
 #endif // fd_set
 
+#if __BSD_VISIBLE && !defined(fds_bits)
+#define fds_bits    __fds_bits
+#endif
+
 #if defined(FD_ISSET) || defined(FD_SET) || defined(FD_CLR)
 #undef FD_SET
 #undef FD_CLR