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tinygo/targets/esp8266.json

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esp8266: add support for this chip Many thanks to cnlohr for the nosdk8266 project: https://github.com/cnlohr/nosdk8266
5 years ago
{
"inherits": ["xtensa"],
"cpu": "esp8266",
all: update to LLVM 14 Switch over to LLVM 14 for static builds. Keep using LLVM 13 for regular builds for now. This uses a branch of the upstream Espressif branch to fix an issue, see: https://github.com/espressif/llvm-project/pull/59
3 years ago
"features": "+debug,+density,+exception,+extendedl32r,+highpriinterrupts,+interrupt,+mul32,+nsa,+prid,+regprotect,+rvector,+timerint",
esp8266: add support for this chip Many thanks to cnlohr for the nosdk8266 project: https://github.com/cnlohr/nosdk8266
5 years ago
"build-tags": ["esp8266", "esp"],
esp8266: implement task based scheduler I have chosed to call this implementation `esp8266` instead of `xtensa` as it has been written specifically for the ESP8266 and there are no other Xtensa chips with the CALL0 ABI (no windowing) that I know of. The only other related chip is the ESP32, which does implement register windowing and thus needs a very different implementation.
4 years ago
"scheduler": "tasks",
esp: use LLVM Xtensa linker instead of Espressif toolchain The Espressif fork of LLVM now has Xtensa support in the linker LLD. (This support was written mosly by me). This means we don't have to use the Espressif GNU toolchain anymore and makes installing TinyGo simpler. In the future, this also paves the way for ThinLTO support. Right now it is mostly just a way to simplify TinyGo installation and speed up CI slightly.
2 years ago
"linker": "ld.lld",
esp8266: implement task based scheduler I have chosed to call this implementation `esp8266` instead of `xtensa` as it has been written specifically for the ESP8266 and there are no other Xtensa chips with the CALL0 ABI (no windowing) that I know of. The only other related chip is the ESP32, which does implement register windowing and thus needs a very different implementation.
4 years ago
"default-stack-size": 2048,
esp8266: add compiler-rt library With this change, it is possible to compile ./testdata/float.go for the ESP8266 and run it successfully. Previously it would result in many linker error like this: /tmp/tinygo494494333/main.o:(.literal.runtime.printfloat64+0x0): undefined reference to `__unorddf2' /tmp/tinygo494494333/main.o:(.literal.runtime.printfloat64+0x4): undefined reference to `__gtdf2' /tmp/tinygo494494333/main.o:(.literal.runtime.printfloat64+0xc): undefined reference to `__nedf2' /tmp/tinygo494494333/main.o:(.literal.runtime.printfloat64+0x10): undefined reference to `__ltdf2' /tmp/tinygo494494333/main.o:(.literal.runtime.printfloat64+0x1c): undefined reference to `__gedf2' I have verified that the output on the serial console matches ./testdata/float.txt when run on the ESP8266.
4 years ago
"rtlib": "compiler-rt",
esp: add picolibc With this change, it is possible to fully use CGo on ESP32/ESP8266 chips. The following will work: tinygo flash -target=d1mini -port=/dev/ttyUSB0 ./testdata/cgo/ tinygo flash -target=esp32-mini32 -port=/dev/ttyUSB0 ./testdata/cgo/ Previously it would produce output like the following: /tmp/tinygo905539688/main.o:(.literal.runtime.run$1$gowrapper+0x150): undefined reference to `strcpy' /tmp/tinygo905539688/main.o:(.literal.runtime.run$1$gowrapper+0x154): undefined reference to `strlen'
4 years ago
"libc": "picolibc",
esp8266: add support for this chip Many thanks to cnlohr for the nosdk8266 project: https://github.com/cnlohr/nosdk8266
5 years ago
"linkerscript": "targets/esp8266.ld",
"extra-files": [
esp8266: implement task based scheduler I have chosed to call this implementation `esp8266` instead of `xtensa` as it has been written specifically for the ESP8266 and there are no other Xtensa chips with the CALL0 ABI (no windowing) that I know of. The only other related chip is the ESP32, which does implement register windowing and thus needs a very different implementation.
4 years ago
"src/device/esp/esp8266.S",
"src/internal/task/task_stack_esp8266.S"
esp8266: add support for this chip Many thanks to cnlohr for the nosdk8266 project: https://github.com/cnlohr/nosdk8266
5 years ago
],
"binary-format": "esp8266",
"flash-command": "esptool.py --chip=esp8266 --port {port} write_flash 0x00000 {bin} -fm qio"
}