Re: cross/xtensa-lx106-elf-gcc with esp8266/Arduino

[Rui-Xiang Guo <rxg%lavabit.com@localhost>]

On Tue, Mar 05, 2024 at 05:45:56PM +0800, Rui-Xiang Guo wrote:
> Hi,
> I test esp8266-2.7.4 because the version of xtensa-lx106-elf-gcc is 4.8.2
> in pkgsrc.
> Here is the compilation error:
> ------
> picohive: {/home/rxg/test/esp8266-2.7.4} /usr/pkg/xtensa-lx106-elf/bin/xtensa-lx106-elf-g++ -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ -Itools/sdk/include -Itools/sdk/lwip2/include -Itools/sdk/libc/xtensa-lx106-elf/include -c -w -Os -g -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++11 -MMD -ffunction-sections -fdata-sections -fno-exceptions -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10607 -DARDUINO_ESP8266_WEMOS_D1MINI -DARDUINO_ARCH_ESP8266 -DARDUINO_BOARD=\"ESP8266_WEMOS_D1MINI\" -DFLASHMODE_DIO -DESP8266 -Icores/esp8266 -Ivariants/d1_mini cores/esp8266/core_esp8266_wiring_pulse.cpp
> In file included from cores/esp8266/wiring_private.h:31:0,
>                  from cores/esp8266/core_esp8266_wiring_pulse.cpp:22:
> cores/esp8266/core_esp8266_wiring_pulse.cpp: In function 'long unsigned int pulseIn(uint8_t, uint8_t, long unsigned int)':
> cores/esp8266/core_esp8266_wiring_pulse.cpp:40:63: error: 'UINT_MAX' was not declared in this scope
>      const uint32_t max_timeout_us = clockCyclesToMicroseconds(UINT_MAX);
>                                                                ^
> cores/esp8266/Arduino.h:149:41: note: in definition of macro 'clockCyclesToMicroseconds'
>  #define clockCyclesToMicroseconds(a) ( (a) / clockCyclesPerMicrosecond() )
> ------
> There is a definition #include <limits.h> in the
> cores/esp8266/core_esp8266_wiring_pulse.cpp, and
> picohive: {/home/rxg/test/esp8266-2.7.4} grep -R UINT_MAX ./                    Binary file ./tools/esptool/test/elf2image/esp32-bootloader.elf matches
> ./tools/sdk/libc/xtensa-lx106-elf/include/limits.h:#   undef UINT_MAX
> ./tools/sdk/libc/xtensa-lx106-elf/include/limits.h:#   define UINT_MAX (INT_MAX * 2U + 1)
> 
> What could be this problem?

I add wip/xtensa-lx106-elf-gcc10 for testing. It works with esp8266-3.1.2:

picohive: {/home/rxg/test/esp8266-3.1.2} /usr/pkg/xtensa-lx106-elf/bin/xtensa-lx106-elf-g++ -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ -D_GNU_SOURCE -DESP8266 -Itools/sdk/include -Itools/sdk/lwip2/include -Itools/sdk/libc/xtensa-lx106-elf/include -c -Os -g -free -fipa-pta -Werror=return-type -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++17 -MMD -ffunction-sections -fdata-sections -fno-exceptions -DMMU_IRAM_SIZE=0x8000 -DMMU_ICACHE_SIZE=0x8000 -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10607 -DARDUINO_ESP8266_WEMOS_D1MINI -DARDUINO_ARCH_ESP8266 -DARDUINO_BOARD="ESP8266_WEMOS_D1MINI" -DARDUINO_BOARD_ID="d1_mini" -DFLASHMODE_DIO -Icores/esp8266 -Ivariants/d1_mini cores/esp8266/core_esp8266_wiring_pulse.cpp

CC bouyer@

-rxg