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GODEBUG started being used for configuring the behavior of the Go toolchain and standard library, for the sake of smoother transitions in terms of backwards and forwards compatibility. See: https://go.dev/doc/godebug As such, it is not right to have `garble build -tiny` ignore all GODEBUG settings, because many GODEBUG keys nowadays do not actually involve debugging what a Go binary is doing. Moreover, the mechanism we were using broke with Go 1.25.2, which refactored `func parsedebugvars()` into `func parseRuntimeDebugVars(godebug string)`, so our test started breaking as our runtime patching was broken.
72 lines
1.8 KiB
Plaintext
72 lines
1.8 KiB
Plaintext
# Tiny mode
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exec garble -tiny build
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! binsubstr main$exe 'garble_main.go' 'fmt/print.go'
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! exec ./main$exe
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stderr '^\(0x[[:xdigit:]]+,0x[[:xdigit:]]+\)' # interfaces/pointers print correctly
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# With -tiny, all line numbers are reset to 1.
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# Unfortunately, line comment directives don't allow erasing line numbers entirely.
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stderr '^caller: \?\? 1$' # position info is removed
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stderr '^recovered: ya like jazz?'
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! stderr 'panic: oh noes' # panics are hidden
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stderr 'funcExported false funcUnexported true'
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stderr 'funcStructExported false funcStructUnexported true'
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[short] stop # no need to verify this with -short
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# Default mode
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exec garble build
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! exec ./main$exe
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stderr '^caller: [[:word:]]+\.go [1-9]'
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stderr '^recovered: ya like jazz?'
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stderr 'panic: oh noes'
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stderr 'funcExported false funcUnexported false'
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stderr 'funcStructExported false funcStructUnexported false'
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-- go.mod --
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module test/main
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go 1.23
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-- garble_main.go --
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package main
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import (
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"reflect"
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"runtime"
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)
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type testStruct struct{}
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func (testStruct) unexportedFunc() { println("dummy") }
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func (testStruct) ExportedFunc() { println("dummy") }
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func ExportedFunc() { println("dummy") }
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func unexportedFunc() { println("dummy") }
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func isEmptyFuncName(i interface{}) bool {
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name := runtime.FuncForPC(reflect.ValueOf(i).Pointer()).Name()
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return len(name) == 0
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}
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func main() {
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println("funcExported", isEmptyFuncName(ExportedFunc), "funcUnexported", isEmptyFuncName(unexportedFunc))
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var s testStruct
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println("funcStructExported", isEmptyFuncName(s.ExportedFunc), "funcStructUnexported", isEmptyFuncName(s.unexportedFunc))
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var v any = "tada"
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println(v)
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defer func() {
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if r := recover(); r != nil {
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println("recovered:", r.(string))
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panic("oh noes")
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}
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}()
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_, file, line, _ := runtime.Caller(0)
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println("caller:", file, line)
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panic("ya like jazz?")
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}
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