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).
27 строки
625 Б
JSON
27 строки
625 Б
JSON
{
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"llvm-target": "arm4-unknown-unknown-eabi",
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"cpu": "arm7tdmi",
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"build-tags": ["gameboyadvance", "arm7tdmi", "baremetal", "linux", "arm"],
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"goos": "linux",
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"goarch": "arm",
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"linker": "ld.lld",
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"rtlib": "compiler-rt",
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"libc": "picolibc",
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"cflags": [
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"-Werror",
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"-fshort-enums",
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"-fomit-frame-pointer",
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"-fno-exceptions", "-fno-unwind-tables",
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"-ffunction-sections", "-fdata-sections"
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],
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"ldflags": [
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"--gc-sections"
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],
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"linkerscript": "targets/gameboy-advance.ld",
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"extra-files": [
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"targets/gameboy-advance.s",
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"src/runtime/gc_arm.S"
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],
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"gdb": ["gdb-multiarch"],
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"emulator": ["mgba", "-3"]
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}
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