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main: add target JSON file in tinygo info output

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It looks like this on my system, for example:

    {
      "target": {
        "llvm-target": "aarch64-unknown-linux",
        "cpu": "generic",
        "features": "+neon",
        "goos": "linux",
        "goarch": "arm64",
        "build-tags": [
          "linux",
          "arm64"
        ],
        "gc": "precise",
        "scheduler": "tasks",
        "linker": "ld.lld",
        "rtlib": "compiler-rt",
        "libc": "musl",
        "default-stack-size": 65536,
        "ldflags": [
          "--gc-sections"
        ],
        "extra-files": [
          "src/runtime/asm_arm64.S",
          "src/internal/task/task_stack_arm64.S"
        ],
        "gdb": [
          "gdb"
        ],
        "flash-1200-bps-reset": "false"
      },
      "goroot": "/home/ayke/.cache/tinygo/goroot-23c311bcaa05f188affa3c42310aba343acc82562d5e5f04dea9d5b79ac35f7e",
      "goos": "linux",
      "goarch": "arm64",
      "goarm": "6",
      ...
    }

This can be very useful while working on the automatically generated
target object for example (in my case, GOOS=wasip1).
This commit is contained in:
Ayke van Laethem
2023-08-11 16:02:04 +02:00
committed by Ron Evans
parent bfe9ee378f
commit 9037bf8bf0
2 changed files with 49 additions and 47 deletions
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main.go
+10 -8
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@@ -1796,15 +1796,17 @@ func main() {
}
if flagJSON {
json, _ := json.MarshalIndent(struct {
GOROOT string `json:"goroot"`
GOOS string `json:"goos"`
GOARCH string `json:"goarch"`
GOARM string `json:"goarm"`
BuildTags []string `json:"build_tags"`
GC string `json:"garbage_collector"`
Scheduler string `json:"scheduler"`
LLVMTriple string `json:"llvm_triple"`
Target *compileopts.TargetSpec `json:"target"`
GOROOT string `json:"goroot"`
GOOS string `json:"goos"`
GOARCH string `json:"goarch"`
GOARM string `json:"goarm"`
BuildTags []string `json:"build_tags"`
GC string `json:"garbage_collector"`
Scheduler string `json:"scheduler"`
LLVMTriple string `json:"llvm_triple"`
}{
Target: config.Target,
GOROOT: cachedGOROOT,
GOOS: config.GOOS(),
GOARCH: config.GOARCH(),