I have committed the appended patch to update the GCC 7 branch to the Go 1.8.3 release of the Go standard library. The branch was previously on the Go 1.8.1 release. This is a fairly small patch that fixes various bugs, a subset of the ones listed at:
https://github.com/golang/go/issues?q=is%3Aissue+milestone%3AGo1.8.2+is%3Aclosed https://github.com/golang/go/issues?q=is%3Aissue+milestone%3AGo1.8.3+is%3Aclosed Bootstrapped and ran Go tests on x86_64-pc-linux-gnu. Committed to GCC 7 branch. Ian
Index: libgo/MERGE =================================================================== --- libgo/MERGE (revision 253365) +++ libgo/MERGE (working copy) @@ -1,4 +1,4 @@ -a4c18f063b6659079ca2848ca217a0587dabc001 +352996a381701cfa0c16e8de29cbde8f3922182f The first line of this file holds the git revision number of the last merge done from the master library sources. Index: libgo/VERSION =================================================================== --- libgo/VERSION (revision 253365) +++ libgo/VERSION (working copy) @@ -1 +1 @@ -go1.8.1 +go1.8.3 Index: libgo/go/cmd/go/build.go =================================================================== --- libgo/go/cmd/go/build.go (revision 253365) +++ libgo/go/cmd/go/build.go (working copy) @@ -3133,6 +3133,26 @@ func (b *builder) ccompile(p *Package, o 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 Index: libgo/go/crypto/elliptic/elliptic_test.go =================================================================== --- libgo/go/crypto/elliptic/elliptic_test.go (revision 253365) +++ libgo/go/crypto/elliptic/elliptic_test.go (working copy) @@ -300,6 +300,29 @@ var p224BaseMultTests = []baseMultTest{ }, } +type scalarMultTest struct { + k string + xIn, yIn string + xOut, yOut string +} + +var p256MultTests = []scalarMultTest{ + { + "2a265f8bcbdcaf94d58519141e578124cb40d64a501fba9c11847b28965bc737", + "023819813ac969847059028ea88a1f30dfbcde03fc791d3a252c6b41211882ea", + "f93e4ae433cc12cf2a43fc0ef26400c0e125508224cdb649380f25479148a4ad", + "4d4de80f1534850d261075997e3049321a0864082d24a917863366c0724f5ae3", + "a22d2b7f7818a3563e0f7a76c9bf0921ac55e06e2e4d11795b233824b1db8cc0", + }, + { + "313f72ff9fe811bf573176231b286a3bdb6f1b14e05c40146590727a71c3bccd", + "cc11887b2d66cbae8f4d306627192522932146b42f01d3c6f92bd5c8ba739b06", + "a2f08a029cd06b46183085bae9248b0ed15b70280c7ef13a457f5af382426031", + "831c3f6b5f762d2f461901577af41354ac5f228c2591f84f8a6e51e2e3f17991", + "93f90934cd0ef2c698cc471c60a93524e87ab31ca2412252337f364513e43684", + }, +} + func TestBaseMult(t *testing.T) { p224 := P224() for i, e := range p224BaseMultTests { @@ -379,6 +402,19 @@ func TestP256Mult(t *testing.T) { break } } + + for i, e := range p256MultTests { + x, _ := new(big.Int).SetString(e.xIn, 16) + y, _ := new(big.Int).SetString(e.yIn, 16) + k, _ := new(big.Int).SetString(e.k, 16) + expectedX, _ := new(big.Int).SetString(e.xOut, 16) + expectedY, _ := new(big.Int).SetString(e.yOut, 16) + + xx, yy := p256.ScalarMult(x, y, k.Bytes()) + if xx.Cmp(expectedX) != 0 || yy.Cmp(expectedY) != 0 { + t.Errorf("#%d: got (%x, %x), want (%x, %x)", i, xx, yy, expectedX, expectedY) + } + } } func TestInfinity(t *testing.T) { Index: libgo/go/database/sql/sql.go =================================================================== --- libgo/go/database/sql/sql.go (revision 253365) +++ libgo/go/database/sql/sql.go (working copy) @@ -1955,12 +1955,12 @@ func (s *Stmt) QueryContext(ctx context. rowsi: rowsi, // releaseConn set below } - rows.initContextClose(ctx) s.db.addDep(s, rows) rows.releaseConn = func(err error) { releaseConn(err) s.db.removeDep(s, rows) } + rows.initContextClose(ctx) return rows, nil } Index: libgo/go/database/sql/sql_test.go =================================================================== --- libgo/go/database/sql/sql_test.go (revision 253365) +++ libgo/go/database/sql/sql_test.go (working copy) @@ -322,7 +322,7 @@ func TestQueryContext(t *testing.T) { select { case <-ctx.Done(): if err := ctx.Err(); err != context.Canceled { - t.Fatalf("context err = %v; want context.Canceled") + t.Fatalf("context err = %v; want context.Canceled", ctx.Err()) } default: t.Fatalf("context err = nil; want context.Canceled") @@ -413,7 +413,8 @@ func TestTxContextWait(t *testing.T) { db := newTestDB(t, "people") defer closeDB(t, db) - ctx, _ := context.WithTimeout(context.Background(), time.Millisecond*15) + ctx, cancel := context.WithTimeout(context.Background(), time.Millisecond*15) + defer cancel() tx, err := db.BeginTx(ctx, nil) if err != nil { Index: libgo/go/net/http/h2_bundle.go =================================================================== --- libgo/go/net/http/h2_bundle.go (revision 253365) +++ libgo/go/net/http/h2_bundle.go (working copy) @@ -1,4 +1,4 @@ -// Code generated by golang.org/x/tools/cmd/bundle. +// Code generated by golang.org/x/tools/cmd/bundle. DO NOT EDIT. //go:generate bundle -o h2_bundle.go -prefix http2 -underscore golang.org/x/net/http2 // Package http2 implements the HTTP/2 protocol. @@ -3536,9 +3536,13 @@ func (sc *http2serverConn) serve() { sc.idleTimerCh = sc.idleTimer.C } - var gracefulShutdownCh <-chan struct{} + var gracefulShutdownCh chan struct{} if sc.hs != nil { - gracefulShutdownCh = http2h1ServerShutdownChan(sc.hs) + ch := http2h1ServerShutdownChan(sc.hs) + if ch != nil { + gracefulShutdownCh = make(chan struct{}) + go sc.awaitGracefulShutdown(ch, gracefulShutdownCh) + } } go sc.readFrames() @@ -3587,6 +3591,14 @@ func (sc *http2serverConn) serve() { } } +func (sc *http2serverConn) awaitGracefulShutdown(sharedCh <-chan struct{}, privateCh chan struct{}) { + select { + case <-sc.doneServing: + case <-sharedCh: + close(privateCh) + } +} + // readPreface reads the ClientPreface greeting from the peer // or returns an error on timeout or an invalid greeting. func (sc *http2serverConn) readPreface() error { @@ -6003,7 +6015,6 @@ func http2commaSeparatedTrailers(req *Re } if len(keys) > 0 { sort.Strings(keys) - return strings.Join(keys, ","), nil } return "", nil