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master
test/fixedbugs/issue14636.go
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Cherry Mui
cmd/link: generate Mach-O UUID when -B flag is specified
21 окт 2024, 20:55
21 окт 2024, 20:55
20ed603
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// run //go:build !nacl && !js && !wasip1 && !android && gc // Copyright 2016 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import ( "bytes" "log" "os/exec" "runtime" "strings" ) func main() { // The cannot open file error indicates that the parsing of -B flag // succeeded and it failed at a later step. checkLinkOutput("0", "-B argument must start with 0x") checkLinkOutput("0x", "cannot open file nonexistent.o") checkLinkOutput("0x0", "-B argument must have even number of digits") checkLinkOutput("0x00", "cannot open file nonexistent.o") checkLinkOutput("0xYZ", "-B argument contains invalid hex digit") maxLen := 32 if runtime.GOOS == "darwin" || runtime.GOOS == "ios" { maxLen = 16 } checkLinkOutput("0x"+strings.Repeat("00", maxLen), "cannot open file nonexistent.o") checkLinkOutput("0x"+strings.Repeat("00", maxLen+1), "-B option too long") } func checkLinkOutput(buildid string, message string) { cmd := exec.Command("go", "tool", "link", "-B", buildid, "nonexistent.o") out, err := cmd.CombinedOutput() if err == nil { log.Fatalf("expected cmd/link to fail") } firstLine := string(bytes.SplitN(out, []byte("\n"), 2)[0]) if strings.HasPrefix(firstLine, "panic") { log.Fatalf("cmd/link panicked:\n%s", out) } if !strings.Contains(firstLine, message) { log.Fatalf("%s: cmd/link output did not include expected message %q: %s", buildid, message, firstLine) } }