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137 lines
3.4 KiB
Plaintext
137 lines
3.4 KiB
Plaintext
# Unknown build flags should result in errors.
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! exec garble reverse -badflag=foo .
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stderr 'flag provided but not defined'
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exec garble build
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exec ./main
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cp stderr main.stderr
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# Ensure that the garbled panic output looks correct.
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# This output is not reproducible between 'go test' runs,
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# so we can't use a static golden file.
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grep 'goroutine 1 \[running\]' main.stderr
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# Note that ExportedLibMethod isn't obfuscated.
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# Note that we use long names like "long_lib.go",
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# because an obfuscated filename could realistically end with "lib".
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! grep 'ExportedLib(Type|Field)|unexportedMainFunc|test/main|long_main\.go|long_lib\.go' main.stderr
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stdin main.stderr
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exec garble reverse .
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cmp stdout reverse.stdout
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# Ensure that we cleaned up the temporary files.
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# Note that we rely on the unix-like TMPDIR env var name.
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[!windows] ! grepfiles ${TMPDIR} 'garble|importcfg|cache\.gob|\.go'
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[short] stop # no need to verify this with -short
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# Ensure that the reversed output matches the non-garbled output.
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go build -trimpath
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exec ./main
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cmp stderr reverse.stdout
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# Ensure that we can still reverse with -literals.
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exec garble -literals build
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exec ./main
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cp stderr main-literals.stderr
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stdin main-literals.stderr
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exec garble -literals reverse .
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cmp stdout reverse.stdout
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# Reversing a -literals output without the flag should fail.
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stdin main-literals.stderr
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! exec garble reverse .
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cmp stdout main-literals.stderr
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-- go.mod --
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module test/main
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go 1.22
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-- long_main.go --
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package main
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import (
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"os"
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"runtime"
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"test/main/lib"
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)
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func main() {
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unexportedMainFunc()
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_, filename, _, _ := runtime.Caller(0)
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println()
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println("main filename:", filename)
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}
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func unexportedMainFunc() {
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anonFunc := func() {
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lt := lib.ExportedLibType{}
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if err := lt.ExportedLibMethod(os.Stderr); err != nil {
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panic(err)
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}
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}
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anonFunc()
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}
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-- lib/long_lib.go --
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package lib
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import (
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"bytes"
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"io"
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"regexp"
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"runtime"
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"runtime/debug"
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)
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type ExportedLibType struct{
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ExportedLibField int
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}
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func (*ExportedLibType) ExportedLibMethod(w io.Writer) error {
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_, filename, _, _ := runtime.Caller(0)
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println("lib filename:", filename)
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println()
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return printStackTrace(w)
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}
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func printStackTrace(w io.Writer) error {
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// Panic outputs include "0xNN" pointers and offsets which change
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// between platforms.
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// The format also changes depending on the ABI.
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// Strip them out here, to have portable static stdout files.
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rxCallArgs := regexp.MustCompile(`\(({|0x)[^)]+\)|\(\)`)
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rxPointer := regexp.MustCompile(`\+0x[[:xdigit:]]+`)
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// Keep this comment here, because comments affect line numbers.
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stack := debug.Stack()
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stack = rxCallArgs.ReplaceAll(stack, []byte("(...)"))
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stack = rxPointer.ReplaceAll(stack, []byte("+0x??"))
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// Drop the second and third lines, as they show a position in runtime/debug
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// which can change between Go versions.
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stackLines := bytes.Split(stack, []byte("\n"))
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stackLines = append(stackLines[:1], stackLines[3:]...)
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_, err := w.Write(bytes.Join(stackLines, []byte("\n")))
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return err
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}
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-- reverse.stdout --
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lib filename: test/main/lib/long_lib.go
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goroutine 1 [running]:
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test/main/lib.printStackTrace(...)
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test/main/lib/long_lib.go:33 +0x??
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test/main/lib.(*ExportedLibType).ExportedLibMethod(...)
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test/main/lib/long_lib.go:20 +0x??
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main.unexportedMainFunc.func1(...)
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test/main/long_main.go:21
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main.unexportedMainFunc(...)
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test/main/long_main.go:25 +0x??
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main.main(...)
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test/main/long_main.go:11 +0x??
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main filename: test/main/long_main.go
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