tinygo/targets/wasm.json

{
	"llvm-target":   "wasm32--wasi",
	"build-tags":    ["js", "wasm"],
	"goos":          "js",
	"goarch":        "wasm",
	"compiler":      "clang",
	"linker":        "wasm-ld",
	"cflags": [
		"--target=wasm32--wasi",
		"--sysroot={root}/lib/wasi-libc/sysroot",
		"-Oz"
	],
	"ldflags": [
		"--allow-undefined",
		"--no-threads",
		"--stack-first",
		"--export-all",
		"{root}/lib/wasi-libc/sysroot/lib/wasm32-wasi/libc.a"
	],
	"emulator":      ["node", "targets/wasm_exec.js"]
}
all: add WebAssembly backend 6 years ago			`{`
wasm: include wasi-libc This allows CGo code to call some libc functions. Additionally, by putting memset/memmove/memcpy in an archive they're not included anymore when not necessary, reducing code size for small programs. 5 years ago			`"llvm-target": "wasm32--wasi",`
all: add WebAssembly backend 6 years ago			`"build-tags": ["js", "wasm"],`
wasm: add GOOS/GOARCH properties This was an oversight in commit 107fccb288. 6 years ago			`"goos": "js",`
			`"goarch": "wasm",`
main: allow changing the clang command name 6 years ago			`"compiler": "clang",`
main: use wasm-ld instead of wasm-ld-8 on macOS This commit does a few things: * remove the -8 suffix on macOS, where it is not necessary * add smoke tests for compiling wasm files on Linux and macOS 6 years ago			`"linker": "wasm-ld",`
wasm: compile .c files in packages 6 years ago			`"cflags": [`
wasm: include wasi-libc This allows CGo code to call some libc functions. Additionally, by putting memset/memmove/memcpy in an archive they're not included anymore when not necessary, reducing code size for small programs. 5 years ago			`"--target=wasm32--wasi",`
			`"--sysroot={root}/lib/wasi-libc/sysroot",`
wasm: compile .c files in packages 6 years ago			`"-Oz"`
			`],`
wasm: fix .json file after compiler updates 6 years ago			`"ldflags": [`
all: switch to LLVM 8 6 years ago			`"--allow-undefined",`
wasm: fix wasm-ld hang See the following bugs for more information: https://bugs.llvm.org/show_bug.cgi?id=41508 https://bugs.llvm.org/show_bug.cgi?id=37064 6 years ago			`"--no-threads",`
wasm: set the stack at the start of linear memory This makes sure that a stack overflow will cause a "memory access out of bounds" error instead of a corruption of a global variable. Here is more background on a very similar stack overflow protection: https://blog.japaric.io/stack-overflow-protection/ 5 years ago			`"--stack-first",`
wasm: include wasi-libc This allows CGo code to call some libc functions. Additionally, by putting memset/memmove/memcpy in an archive they're not included anymore when not necessary, reducing code size for small programs. 5 years ago			`"--export-all",`
			`"{root}/lib/wasi-libc/sysroot/lib/wasm32-wasi/libc.a"`
all: add WebAssembly backend 6 years ago			`],`
wasm: switch emulator to node.js Unfortunately, the olin/cwa emulator does not handle floats correctly. Node.js does, and because it is also supported by the Go WebAssembly implementation it has better support in general. 6 years ago			`"emulator": ["node", "targets/wasm_exec.js"]`
all: add WebAssembly backend 6 years ago			`}`