Merge branch 'feature/add-picolibc-support' into 'master'

Add picolibc support

Closes IDF-11319

See merge request espressif/esp-idf!33601

Author: Lapshin

.codespellrc

@@ -1,4 +1,4 @@
 [codespell]
-skip = build,*.yuv,components/fatfs/src/*,alice.txt,*.rgb,components/wpa_supplicant/*,components/esp_wifi/*,*.pem
+skip = build,*.yuv,components/fatfs/src/*,alice.txt,*.rgb,components/wpa_supplicant/*,components/esp_wifi/*,*.pem,components/newlib/COPYING.*
 ignore-words-list = ser,dout,rsource,fram,inout,shs,ans,aci,unstall,unstalling,hart,wheight,wel,ot,fane,assertIn,registr,oen,parms
 write-changes = true

.pre-commit-config.yaml

@@ -14,6 +14,7 @@ repos:
         # 2 - any file matching *test*/*expected* (for host tests, if possible use this naming pattern always)
         # 3 - any directory named 'testdata'
         # 4 - protobuf auto-generated files
+        # 5 - COPYING files
         exclude: &whitespace_excludes |
           (?x)^(
             .+\.(md|rst|map|bin)|
@@ -23,7 +24,8 @@ repos:
             .*.pb-c.h|
             .*.pb-c.c|
             .*.yuv|
-            .*.rgb
+            .*.rgb|
+            .*COPYING.*
           )$
       - id: end-of-file-fixer
         exclude: *whitespace_excludes

Kconfig

@@ -696,3 +696,4 @@ mainmenu "Espressif IoT Development Framework Configuration"
             - CONFIG_ESP_WIFI_ENABLE_ROAMING_APP
             - CONFIG_USB_HOST_EXT_PORT_SUPPORT_LS
             - CONFIG_USB_HOST_EXT_PORT_RESET_ATTEMPTS
+            - CONFIG_LIBC_PICOLIBC

components/bootloader/subproject/main/bootloader_start.c

@@ -134,8 +134,10 @@ static int selected_boot_partition(const bootloader_state_t *bs)
     return boot_index;
 }
 
+#if CONFIG_LIBC_NEWLIB
 // Return global reent struct if any newlib functions are linked to bootloader
 struct _reent *__getreent(void)
 {
     return _GLOBAL_REENT;
 }
+#endif

components/bt/common/osi/include/osi/hash_map.h

@@ -20,6 +20,7 @@
 #define _HASH_MAP_H_
 
 #include <stdbool.h>
+#include <stddef.h>
 #include <stdint.h>
 
 struct hash_map_t;

components/console/linenoise/linenoise.c

@@ -112,7 +112,8 @@
 // On Linux, we don't need __fbufsize (see comments below), and
 // __fbufsize not available on MacOS (which is also considered "Linux" target)
 #include <stdio_ext.h> // for __fbufsize
-#endif
+#endif // !CONFIG_IDF_TARGET_LINUX
+#include <stddef.h>
 #include <errno.h>
 #include <string.h>
 #include <stdlib.h>
@@ -226,10 +227,15 @@ static void flushWrite(void) {
 // Performance on Linux is not considered as critical as on chip targets. Additionally,
 // MacOS does not have __fbufsize.
 #if !CONFIG_IDF_TARGET_LINUX
-    if (__fbufsize(stdout) > 0) {
+#if CONFIG_LIBC_PICOLIBC
+    if (((struct __file_bufio *)(stdout))->len > 0)
+#else // CONFIG_LIBC_PICOLIBC
+    if (__fbufsize(stdout) > 0)
+#endif // CONFIG_LIBC_PICOLIBC
+    {
         fflush(stdout);
     }
-#endif
+#endif // !CONFIG_IDF_TARGET_LINUX
     fsync(fileno(stdout));
 }
 

components/driver/deprecated/mcpwm_legacy.c

@@ -5,6 +5,7 @@
  */
 
 #include "sdkconfig.h"
+#include <sys/lock.h>
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "esp_log.h"

components/driver/test_apps/twai/main/test_app_main.c

@@ -7,6 +7,7 @@
 #include "unity.h"
 #include "unity_test_utils.h"
 #include "esp_heap_caps.h"
+#include "esp_newlib.h"
 
 // Some resources are lazy allocated in the TWAI driver, the threshold is left for that case
 #define TEST_MEMORY_LEAK_THRESHOLD (200)

components/esp-tls/test_apps/main/app_main.c

@@ -17,6 +17,7 @@
 #else
 #include "sha/sha_block.h"
 #endif
+#include "esp_newlib.h"
 
 #if SOC_SHA_SUPPORT_SHA512
 #define SHA_TYPE SHA2_512

components/esp_driver_cam/dvp/src/esp_cam_ctlr_dvp_cam.c

@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+#include <sys/lock.h>
 #include <sys/param.h>
 #include "hal/gpio_ll.h"
 #include "hal/cam_ll.h"