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30357af923
This lets us start taking advantage of featurs from Go 1.23, particularly tracking aliases in go/types and iterators. Note that we need to add code to properly handle or skip over the new *types.Alias type which go/types produces for Go type aliases. Also note that we actually turn this mode off entirely for now, due to the bug reported at https://go.dev/issue/70394. We don't yet remove our own alias tracking code yet due to the above. We hope to be able to remove it very soon.
75 lines
2.1 KiB
Plaintext
75 lines
2.1 KiB
Plaintext
# This test stopped working on Go 1.23, as linknaming into the runtime
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# is now forbidden since https://go.dev/issue/67401.
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# Perhaps rewrite this test by searching for the pcheader magic number
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# by scanning the binary, like debug/buildinfo/buildinfo.go does in searchMagic.
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skip 'no longer works on Go 1.23'
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# 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=${WORK}/garble-cache
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# Any build settings for the main build shouldn't affect building the linker.
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# If this flag makes it through when using build commands on std or cmd,
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# those commands are likely to fail as std and cmd are their own modules.
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env GOFLAGS=-modfile=${WORK}/go.mod
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exec 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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# The rebuilt linker should use the executable extension for the host GOOS,
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# not the target one. Not doing so might be harmless, but can result in
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# building the linker twice, wasting CPU and disk.
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[!windows] env GOOS=windows
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[windows] env GOOS=linux
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exec garble build
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[!windows] [exec:git] exists ${GARBLE_CACHE}/tool/link
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[!windows] [exec:git] ! exists ${GARBLE_CACHE}/tool/link.exe
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[windows] [exec:git] ! exists ${GARBLE_CACHE}/tool/link
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[windows] [exec:git] exists ${GARBLE_CACHE}/tool/link.exe
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env GOOS=
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# Verify a build without garble.
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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 1.23
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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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