caf35cfc41
This has been a *lot* of work, trying to understand the Xtensa windowed registers ABI. But in the end I managed to come up with a very simple implementation that so far seems to work very well. I tested this with both blinky examples (with blinky2 slightly edited) and ./testdata/coroutines.go to verify that it actually works. Most development happened on the ESP32 QEMU fork from Espressif (https://github.com/espressif/qemu/wiki) but I also verified that it works on a real ESP32.
18 строки
453 Б
JSON
18 строки
453 Б
JSON
{
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"inherits": ["xtensa"],
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"cpu": "esp32",
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"build-tags": ["esp32", "esp"],
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"scheduler": "tasks",
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"linker": "xtensa-esp32-elf-ld",
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"default-stack-size": 2048,
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"cflags": [
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"-mcpu=esp32"
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],
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"linkerscript": "targets/esp32.ld",
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"extra-files": [
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"src/device/esp/esp32.S",
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"src/internal/task/task_stack_esp32.S"
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],
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"binary-format": "esp32",
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"flash-command": "esptool.py --chip=esp32 --port {port} write_flash 0x1000 {bin} -ff 80m -fm dout"
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}
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