Revert "Merge branch 'feature/support_gcc_v8.x' into 'master'"

This reverts merge request !1539

components/esp8266/Kconfig

@@ -27,6 +27,30 @@ config ESP8266_DEFAULT_CPU_FREQ_MHZ
     default 80 if ESP8266_DEFAULT_CPU_FREQ_80
     default 160 if ESP8266_DEFAULT_CPU_FREQ_160
 
+choice NEWLIB_STDOUT_LINE_ENDING
+    prompt "Line ending for UART output"
+    default NEWLIB_STDOUT_LINE_ENDING_CRLF
+    help
+        This option allows configuring the desired line endings sent to UART
+        when a newline ('\n', LF) appears on stdout.
+        Three options are possible:
+
+        CRLF: whenever LF is encountered, prepend it with CR
+
+        LF: no modification is applied, stdout is sent as is
+
+        CR: each occurence of LF is replaced with CR
+
+        This option doesn't affect behavior of the UART driver (drivers/uart.h).
+
+config NEWLIB_STDOUT_LINE_ENDING_CRLF
+    bool "CRLF"
+config NEWLIB_STDOUT_LINE_ENDING_LF
+    bool "LF"
+config NEWLIB_STDOUT_LINE_ENDING_CR
+    bool "CR"
+endchoice
+
 choice ESP_FILENAME_MACRO
     prompt "File name macro text"
     default ESP_FILENAME_MACRO_NO_PATH

components/esp8266/Makefile.projbuild

@@ -1,5 +1,5 @@
-SUPPORTED_TOOLCHAIN_COMMIT_DESC := esp-2020r3-49-gd5524c1
-SUPPORTED_TOOLCHAIN_GCC_VERSIONS := 8.4.0
+SUPPORTED_TOOLCHAIN_COMMIT_DESC := 1.22.0-100-ge567ec7
+SUPPORTED_TOOLCHAIN_GCC_VERSIONS := 5.2.0
 
 ifdef CONFIG_ESP8266_LEGACY
 

components/esp8266/source/startup.c

@@ -35,7 +35,9 @@
 #include "task.h"
 #include "esp_task.h"
 
+#ifndef CONFIG_NEWLIB_LIBRARY_CUSTOMER
 #include "esp_newlib.h"
+#endif
 
 extern esp_err_t esp_pthread_init(void);
 extern void chip_boot(void);
@@ -83,7 +85,9 @@ static void user_init_entry(void *param)
     esp_task_wdt_init();
 #endif
 
+#ifdef CONFIG_ENABLE_PTHREAD
     assert(esp_pthread_init() == 0);
+#endif
 
 #ifdef CONFIG_BOOTLOADER_FAST_BOOT
     REG_CLR_BIT(DPORT_CTL_REG, DPORT_CTL_DOUBLE_CLK);
@@ -163,7 +167,9 @@ void call_start_cpu(size_t start_addr)
     assert(__esp_os_init() == 0);
 #endif
 
+#ifndef CONFIG_NEWLIB_LIBRARY_CUSTOMER
     esp_newlib_init();
+#endif
 
     assert(xTaskCreate(user_init_entry, "uiT", ESP_TASK_MAIN_STACK, NULL, ESP_TASK_MAIN_PRIO, NULL) == pdPASS);