29206cf0a4
This is for consistency with Clang, which always adds a CPU flag even if it's not specified in CFLAGS. This commit also adds some tests to make sure the Clang target-cpu matches the CPU property in the JSON files. This does have an effect on the generated binaries. The effect is very small though: on average just 0.2% increase in binary size, apparently because Cortex-M3 and Cortex-M4 are compiled a bit differently. However, when rebased on top of https://github.com/tinygo-org/tinygo/pull/2218 (minsize), the difference drops to -0.1% (a slight decrease on average).
18 строки
485 Б
JSON
18 строки
485 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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"serial": "uart",
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"linker": "xtensa-esp32-elf-ld",
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"default-stack-size": 2048,
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"rtlib": "compiler-rt",
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"libc": "picolibc",
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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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