feat(gcc): Update cross toolchain GCC to v8.x

components/esp8266/Kconfig

@@ -27,30 +27,6 @@ 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 := 1.22.0-100-ge567ec7
-SUPPORTED_TOOLCHAIN_GCC_VERSIONS := 5.2.0
+SUPPORTED_TOOLCHAIN_COMMIT_DESC := esp-2020r3-49-gd5524c1
+SUPPORTED_TOOLCHAIN_GCC_VERSIONS := 8.4.0
 
 ifdef CONFIG_ESP8266_LEGACY
 

components/esp8266/ld/esp8266.project.ld.in

@@ -60,8 +60,6 @@ SECTIONS
     . = 0x70;
     KEEP(*(.DoubleExceptionVector.text));
 
-    *(.text .literal) 
-
     *(.*Vector.literal)
 
     *(.UserEnter.literal);

components/esp8266/ld/esp8266.rom.ld

@@ -15,43 +15,43 @@ PROVIDE ( lldesc_build_chain = 0x40004f40 );
 PROVIDE ( lldesc_num2link = 0x40005050 );
 PROVIDE ( lldesc_set_owner = 0x4000507c );
 
-PROVIDE ( __adddf3 = 0x4000c538 );
-PROVIDE ( __addsf3 = 0x4000c180 );
-PROVIDE ( __divdf3 = 0x4000cb94 );
-PROVIDE ( __divdi3 = 0x4000ce60 );
-PROVIDE ( __divsi3 = 0x4000dc88 );
-PROVIDE ( __extendsfdf2 = 0x4000cdfc );
-PROVIDE ( __fixdfsi = 0x4000ccb8 );
-PROVIDE ( __fixunsdfsi = 0x4000cd00 );
-PROVIDE ( __fixunssfsi = 0x4000c4c4 );
-PROVIDE ( __floatsidf = 0x4000e2f0 );
-PROVIDE ( __floatsisf = 0x4000e2ac );
-PROVIDE ( __floatunsidf = 0x4000e2e8 );
-PROVIDE ( __floatunsisf = 0x4000e2a4 );
-PROVIDE ( __muldf3 = 0x4000c8f0 );
-PROVIDE ( __muldi3 = 0x40000650 );
-PROVIDE ( __mulsf3 = 0x4000c3dc );
-PROVIDE ( __subdf3 = 0x4000c688 );
-PROVIDE ( __subsf3 = 0x4000c268 );
-PROVIDE ( __truncdfsf2 = 0x4000cd5c );
-PROVIDE ( __udivdi3 = 0x4000d310 );
-PROVIDE ( __udivsi3 = 0x4000e21c );
-PROVIDE ( __umoddi3 = 0x4000d770 );
-PROVIDE ( __umodsi3 = 0x4000e268 );
-PROVIDE ( __umulsidi3 = 0x4000dcf0 );
+__adddf3 = 0x4000c538;
+__addsf3 = 0x4000c180;
+__divdf3 = 0x4000cb94;
+__divdi3 = 0x4000ce60;
+__divsi3 = 0x4000dc88;
+__extendsfdf2 = 0x4000cdfc;
+__fixdfsi = 0x4000ccb8;
+__fixunsdfsi = 0x4000cd00;
+__fixunssfsi = 0x4000c4c4;
+__floatsidf = 0x4000e2f0;
+__floatsisf = 0x4000e2ac;
+__floatunsidf = 0x4000e2e8;
+__floatunsisf = 0x4000e2a4;
+__muldf3 = 0x4000c8f0;
+__muldi3 = 0x40000650;
+__mulsf3 = 0x4000c3dc;
+__subdf3 = 0x4000c688;
+__subsf3 = 0x4000c268;
+__truncdfsf2 = 0x4000cd5c;
+__udivdi3 = 0x4000d310;
+__udivsi3 = 0x4000e21c;
+__umoddi3 = 0x4000d770;
+__umodsi3 = 0x4000e268;
+__umulsidi3 = 0x4000dcf0;
 
-PROVIDE ( bzero = 0x4000de84 );
-PROVIDE ( memcmp = 0x4000dea8 );
-PROVIDE ( memcpy = 0x4000df48 );
-PROVIDE ( memmove = 0x4000e04c );
-PROVIDE ( memset = 0x4000e190 );
+bzero = 0x4000de84;
+memcmp = 0x4000dea8;
+memcpy = 0x4000df48;
+memmove = 0x4000e04c;
+memset = 0x4000e190;
 
-PROVIDE ( strcmp = 0x4000bdc8 );
-PROVIDE ( strcpy = 0x4000bec8 );
-PROVIDE ( strlen = 0x4000bf4c );
-PROVIDE ( strncmp = 0x4000bfa8 );
-PROVIDE ( strncpy = 0x4000c0a0 );
-PROVIDE ( strstr = 0x4000e1e0 );
+strcmp = 0x4000bdc8;
+strcpy = 0x4000bec8;
+strlen = 0x4000bf4c;
+strncmp = 0x4000bfa8;
+strncpy = 0x4000c0a0;
+strstr = 0x4000e1e0;
 
 PROVIDE ( gpio_input_get = 0x40004cf0 );
 PROVIDE ( gpio_pin_wakeup_disable = 0x40004ed4 );

components/esp8266/ld/esp8266_fragments.lf

@@ -1,3 +1,8 @@
+[sections:text_0]
+entries:
+    .text
+    .literal
+
 [sections:text]
 entries:
     .text+
@@ -50,6 +55,7 @@ entries:
 
 [scheme:default]
 entries:
+    text_0 -> iram0_text
     text -> flash_text
     rodata -> flash_rodata
     data -> dram0_data
@@ -87,3 +93,7 @@ entries:
 [scheme:wifi_iram]
 entries:
     wifi_iram -> iram0_text
+
+[scheme:inflash_text]
+entries:
+    text -> flash_text

components/esp8266/linker.lf

@@ -20,3 +20,10 @@ archive: libcore.a
 entries:
     if ESP8266_CORE_GLOBAL_DATA_LINK_IRAM = y:
         * (iram_bss)
+
+[mapping:gcc]
+archive: libgcc.a
+entries:
+    unwind-dw2 (inflash_text)
+    unwind-dw2-fde (inflash_text)
+

components/esp8266/source/startup.c

@@ -35,9 +35,7 @@
 #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);
@@ -85,9 +83,7 @@ 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);
@@ -167,9 +163,7 @@ void call_start_cpu(size_t start_addr)
     assert(__esp_os_init() == 0);
 #endif
 
-#ifndef CONFIG_NEWLIB_LIBRARY_CUSTOMER
-    esp_newlib_init();
-#endif
+    assert(esp_newlib_init() == 0);
 
     assert(xTaskCreate(user_init_entry, "uiT", ESP_TASK_MAIN_STACK, NULL, ESP_TASK_MAIN_PRIO, NULL) == pdPASS);