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| author | Russ Cox <rsc@golang.org> | 2017-06-14 13:53:57 -0400 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2017-06-14 13:53:57 -0400 |
| commit | 8a5ef1501dee0715093e87cdc1c9b6becb81c882 (patch) | |
| tree | 85a4b4d1e5633edb79567d9deb3bbbf02ee9383e /src/cmd/go/build.go | |
| parent | 1ba29926f3bfd245d46cf1f287716290bc2f1034 (diff) | |
| parent | 352996a381701cfa0c16e8de29cbde8f3922182f (diff) | |
| download | go-8a5ef1501dee0715093e87cdc1c9b6becb81c882.tar.gz go-8a5ef1501dee0715093e87cdc1c9b6becb81c882.zip | |
[dev.typealias] all: merge go1.8.3 into dev.typealiasdev.typealias
352996a381 (tag: go1.8.3) [release-branch.go1.8] go1.8.3
bb5055d6f1 [release-branch.go1.8] doc: document go1.8.3
439c0c8be8 [release-branch.go1.8] cmd/compile: don't move spills to loop exits where the spill is dead
e396667ba3 [release-branch.go1.8] cmd/compile: zero ambiguously live variables at VARKILLs
daf6706f37 [release-branch.go1.8] runtime: use pselect6 for usleep on linux/386
958c64bbab [release-branch.go1.8] runtime: use pselect6 for usleep on linux/amd64 and linux/arm
195e20a976 [release-branch.go1.8] cmd/compile: ignore types when considering tuple select for CSE
f55bc1c4eb [release-branch.go1.8] net/http: update bundled http2 for gracefulShutdownCh lock contention slowdown
51f508bb4a [release-branch.go1.8] cmd/compile: fix s390x unsigned comparison constant merging rules
243dee1737 [release-branch.go1.8] cmd/go: if we get a C compiler dwarf2 warning, try without -g
a43c0d2dc8 [release-branch.go1.8] runtime: don't corrupt arena bounds on low mmap
1054085dcf [release-branch.go1.8] cmd/compile: fix store chain in schedule pass
18a13d373a [release-branch.go1.8] runtime: doubly fix "double wakeup" panic
6efa2f22ac [release-branch.go1.8] database/sql: ensure releaseConn is defined before a possible close
fb9770f09b [release-branch.go1.8] runtime: print debug info on "base out of range"
b6a8fc8d8c [release-branch.go1.8] doc: remove mentions of yacc tool
59870f9e19 (tag: go1.8.2) [release-branch.go1.8] go1.8.2
c9688ddb6b [release-branch.go1.8] doc: document go1.8.2 and go1.7.6
38d35f49e7 [release-branch.go1.8] crypto/elliptic: fix carry bug in x86-64 P-256 implementation.
Change-Id: I2aa0eab7a990d24e25809fb13ce6cb031104f474
Diffstat (limited to 'src/cmd/go/build.go')
| -rw-r--r-- | src/cmd/go/build.go | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/cmd/go/build.go b/src/cmd/go/build.go index 98a650918a..cad578daed 100644 --- a/src/cmd/go/build.go +++ b/src/cmd/go/build.go @@ -3073,6 +3073,26 @@ func (b *builder) ccompile(p *Package, outfile string, flags []string, file stri desc := p.ImportPath output, err := b.runOut(p.Dir, desc, nil, compiler, flags, "-o", outfile, "-c", file) if len(output) > 0 { + // On FreeBSD 11, when we pass -g to clang 3.8 it + // invokes its internal assembler with -dwarf-version=2. + // When it sees .section .note.GNU-stack, it warns + // "DWARF2 only supports one section per compilation unit". + // This warning makes no sense, since the section is empty, + // but it confuses people. + // We work around the problem by detecting the warning + // and dropping -g and trying again. + if bytes.Contains(output, []byte("DWARF2 only supports one section per compilation unit")) { + newFlags := make([]string, 0, len(flags)) + for _, f := range flags { + if !strings.HasPrefix(f, "-g") { + newFlags = append(newFlags, f) + } + } + if len(newFlags) < len(flags) { + return b.ccompile(p, outfile, newFlags, file, compiler) + } + } + b.showOutput(p.Dir, desc, b.processOutput(output)) if err != nil { err = errPrintedOutput |