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https://github.com/golang/go
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f1778c28a9
Change the run.go driver to recognize the "gc" build tag. Change existing tests to use the "gc" build tag if they use some feature that seems specific to the gc compiler, such as passing specific options to or expecting specific behavior from "go tool compile". Change tests to use the "!gccgo" build tag if they use "go build" or "go run", as while those might work with compilers other than gc, they won't work with the way that gccgo runs its testsuite (which happens independently of the go command). For #43252 Change-Id: I666e04b6d7255a77dfc256ee304094e3a6bb15ad Reviewed-on: https://go-review.googlesource.com/c/go/+/279052 Trust: Ian Lance Taylor <iant@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
44 lines
1.2 KiB
Go
44 lines
1.2 KiB
Go
// +build !nacl,!js,!android,gc
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// run
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// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"bytes"
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"log"
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"os/exec"
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"strings"
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)
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func main() {
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checkLinkOutput("", "-B argument must start with 0x")
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checkLinkOutput("0", "-B argument must start with 0x")
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checkLinkOutput("0x", "usage")
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checkLinkOutput("0x0", "-B argument must have even number of digits")
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checkLinkOutput("0x00", "usage")
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checkLinkOutput("0xYZ", "-B argument contains invalid hex digit")
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checkLinkOutput("0x"+strings.Repeat("00", 32), "usage")
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checkLinkOutput("0x"+strings.Repeat("00", 33), "-B option too long (max 32 digits)")
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}
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func checkLinkOutput(buildid string, message string) {
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cmd := exec.Command("go", "tool", "link", "-B", buildid)
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out, err := cmd.CombinedOutput()
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if err == nil {
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log.Fatalf("expected cmd/link to fail")
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}
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firstLine := string(bytes.SplitN(out, []byte("\n"), 2)[0])
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if strings.HasPrefix(firstLine, "panic") {
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log.Fatalf("cmd/link panicked:\n%s", out)
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}
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if !strings.Contains(firstLine, message) {
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log.Fatalf("cmd/link output did not include expected message %q: %s", message, firstLine)
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}
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}
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