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https://github.com/golang/go
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096b294f21
The wildcard 'std' is defined in documentation to be all the packages in the Go standard library. It has also historically matched commands in the main repo, but as we implement core commands in Go, that becomes problematic. We need a wildcard that means just the library, and since 'std' is already documented to have that definition, make it so. Add a new wildcard 'cmd' for the commands in the main repo ($GOROOT). Commands that want both can say 'std cmd' (or 'cmd std') to get the effect of the old 'std'. Update make.bash etc to say both std and cmd most of the time. Exception: in race.bash, do not install race-enabled versions of the actual commands. This avoids trying to write binaries while using them, but more importantly it avoids enabling the race detector and its associated memory overhead for the already memory-hungry compilers. Change-Id: I26bb06cb13b636dfbe71a015ee0babeb270a0275 Reviewed-on: https://go-review.googlesource.com/5550 Run-TryBot: Russ Cox <rsc@golang.org> Reviewed-by: Rob Pike <r@golang.org>
169 lines
5.4 KiB
Bash
Executable File
169 lines
5.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2009 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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# See golang.org/s/go15bootstrap for an overview of the build process.
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# Environment variables that control make.bash:
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#
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# GOROOT_FINAL: The expected final Go root, baked into binaries.
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# The default is the location of the Go tree during the build.
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#
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# GOHOSTARCH: The architecture for host tools (compilers and
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# binaries). Binaries of this type must be executable on the current
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# system, so the only common reason to set this is to set
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# GOHOSTARCH=386 on an amd64 machine.
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#
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# GOARCH: The target architecture for installed packages and tools.
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#
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# GOOS: The target operating system for installed packages and tools.
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#
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# GO_GCFLAGS: Additional 5g/6g/8g arguments to use when
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# building the packages and commands.
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#
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# GO_LDFLAGS: Additional 5l/6l/8l arguments to use when
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# building the commands.
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#
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# CGO_ENABLED: Controls cgo usage during the build. Set it to 1
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# to include all cgo related files, .c and .go file with "cgo"
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# build directive, in the build. Set it to 0 to ignore them.
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#
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# GO_EXTLINK_ENABLED: Set to 1 to invoke the host linker when building
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# packages that use cgo. Set to 0 to do all linking internally. This
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# controls the default behavior of the linker's -linkmode option. The
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# default value depends on the system.
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#
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# CC: Command line to run to compile C code for GOHOSTARCH.
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# Default is "gcc". Also supported: "clang".
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#
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# CC_FOR_TARGET: Command line to run to compile C code for GOARCH.
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# This is used by cgo. Default is CC.
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#
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# CXX_FOR_TARGET: Command line to run to compile C++ code for GOARCH.
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# This is used by cgo. Default is CXX, or, if that is not set,
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# "g++" or "clang++".
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#
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# GO_DISTFLAGS: extra flags to provide to "dist bootstrap". Use "-s"
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# to build a statically linked toolchain.
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set -e
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if [ ! -f run.bash ]; then
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echo 'make.bash must be run from $GOROOT/src' 1>&2
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exit 1
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fi
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# Test for Windows.
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case "$(uname)" in
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*MINGW* | *WIN32* | *CYGWIN*)
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echo 'ERROR: Do not use make.bash to build on Windows.'
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echo 'Use make.bat instead.'
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echo
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exit 1
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;;
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esac
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# Test for bad ld.
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if ld --version 2>&1 | grep 'gold.* 2\.20' >/dev/null; then
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echo 'ERROR: Your system has gold 2.20 installed.'
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echo 'This version is shipped by Ubuntu even though'
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echo 'it is known not to work on Ubuntu.'
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echo 'Binaries built with this linker are likely to fail in mysterious ways.'
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echo
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echo 'Run sudo apt-get remove binutils-gold.'
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echo
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exit 1
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fi
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# Test for bad SELinux.
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# On Fedora 16 the selinux filesystem is mounted at /sys/fs/selinux,
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# so loop through the possible selinux mount points.
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for se_mount in /selinux /sys/fs/selinux
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do
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if [ -d $se_mount -a -f $se_mount/booleans/allow_execstack -a -x /usr/sbin/selinuxenabled ] && /usr/sbin/selinuxenabled; then
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if ! cat $se_mount/booleans/allow_execstack | grep -c '^1 1$' >> /dev/null ; then
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echo "WARNING: the default SELinux policy on, at least, Fedora 12 breaks "
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echo "Go. You can enable the features that Go needs via the following "
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echo "command (as root):"
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echo " # setsebool -P allow_execstack 1"
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echo
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echo "Note that this affects your system globally! "
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echo
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echo "The build will continue in five seconds in case we "
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echo "misdiagnosed the issue..."
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sleep 5
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fi
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fi
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done
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# Test for debian/kFreeBSD.
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# cmd/dist will detect kFreeBSD as freebsd/$GOARCH, but we need to
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# disable cgo manually.
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if [ "$(uname -s)" == "GNU/kFreeBSD" ]; then
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export CGO_ENABLED=0
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fi
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# Clean old generated file that will cause problems in the build.
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rm -f ./runtime/runtime_defs.go
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# Finally! Run the build.
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echo '##### Building Go bootstrap tool.'
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echo cmd/dist
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export GOROOT="$(cd .. && pwd)"
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GOROOT_BOOTSTRAP=${GOROOT_BOOTSTRAP:-$HOME/go1.4}
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if [ ! -x "$GOROOT_BOOTSTRAP/bin/go" ]; then
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echo "ERROR: Cannot find $GOROOT_BOOTSTRAP/bin/go." >&2
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echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4." >&2
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fi
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rm -f cmd/dist/dist
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GOROOT="$GOROOT_BOOTSTRAP" GOOS="" GOARCH="" "$GOROOT_BOOTSTRAP/bin/go" build -o cmd/dist/dist ./cmd/dist
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# -e doesn't propagate out of eval, so check success by hand.
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eval $(./cmd/dist/dist env -p || echo FAIL=true)
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if [ "$FAIL" = true ]; then
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exit 1
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fi
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echo
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if [ "$1" = "--dist-tool" ]; then
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# Stop after building dist tool.
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mkdir -p "$GOTOOLDIR"
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if [ "$2" != "" ]; then
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cp cmd/dist/dist "$2"
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fi
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mv cmd/dist/dist "$GOTOOLDIR"/dist
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exit 0
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fi
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buildall="-a"
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if [ "$1" = "--no-clean" ]; then
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buildall=""
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shift
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fi
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./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
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# Delay move of dist tool to now, because bootstrap may clear tool directory.
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mv cmd/dist/dist "$GOTOOLDIR"/dist
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echo
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if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOHOSTOS" != "$GOOS" ]; then
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echo "##### Building packages and commands for host, $GOHOSTOS/$GOHOSTARCH."
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# CC_FOR_TARGET is recorded as the default compiler for the go tool. When building for the host, however,
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# use the host compiler, CC, from `cmd/dist/dist env` instead.
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CC=$CC GOOS=$GOHOSTOS GOARCH=$GOHOSTARCH \
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"$GOTOOLDIR"/go_bootstrap install -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
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echo
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fi
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echo "##### Building packages and commands for $GOOS/$GOARCH."
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CC=$CC_FOR_TARGET "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
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echo
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rm -f "$GOTOOLDIR"/go_bootstrap
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if [ "$1" != "--no-banner" ]; then
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"$GOTOOLDIR"/dist banner
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fi
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