tinygo/targets/esp8266.json
Ayke van Laethem 676a78776a 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.
2021-02-11 10:50:29 +01:00

19 строки
486 Б
JSON

{
"inherits": ["xtensa"],
"cpu": "esp8266",
"build-tags": ["esp8266", "esp"],
"scheduler": "tasks",
"linker": "xtensa-esp32-elf-ld",
"default-stack-size": 2048,
"cflags": [
"-mcpu=esp8266"
],
"rtlib": "compiler-rt",
"linkerscript": "targets/esp8266.ld",
"extra-files": [
"src/device/esp/esp8266.S",
"src/internal/task/task_stack_esp8266.S"
],
"binary-format": "esp8266",
"flash-command": "esptool.py --chip=esp8266 --port {port} write_flash 0x00000 {bin} -fm qio"
}