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50 lines
1003 B
Plaintext
50 lines
1003 B
Plaintext
# Past garble versions might not properly patch cmd/link with "git apply"
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# when running inside a git repository. Skip the extra check with -short.
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[!short] [exec:git] exec git init -q
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[!short] [exec:git] env GARBLE_CACHE_DIR=$WORK/linker-cache
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garble build
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exec ./main
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! cmp stderr main.stderr
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[short] stop # no need to verify this with -short
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go build
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exec ./main
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cmp stderr main.stderr
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-- go.mod --
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module test/main
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go 1.20
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-- main.go --
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package main
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import (
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"strconv"
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"strings"
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_ "unsafe"
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)
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type fakeModuleData struct {
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pcHeader *struct {
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magic uint32
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}
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}
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//go:linkname activeModules runtime.activeModules
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func activeModules() []*fakeModuleData
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// genericMagicValue returns magic value without last digit
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func genericMagicValue() string {
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mod := activeModules()[0]
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magicValHex := strings.ToUpper(strconv.FormatUint(uint64(mod.pcHeader.magic), 16))
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return "0x" + magicValHex[:len(magicValHex)-1] + "?"
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}
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func main() {
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println(genericMagicValue())
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}
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-- main.stderr --
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0xFFFFFFF?
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