mirror of
https://github.com/golang/go
synced 2024-11-13 18:20:32 -07:00
6d888f1e1b
This works with at least one version of clang
that existed at one moment in time.
No guarantees about clangs past or future.
To try:
CC=clang all.bash
It does not work with the Xcode clang,
because that clang fails at printing a useful answer
to:
clang -print-libgcc-file-name
The clang that works prints a full path name for
that command, not just "libgcc.a".
Fixes #4713.
R=iant, minux.ma
CC=golang-dev
https://golang.org/cl/7323068
151 lines
4.5 KiB
Bash
Executable File
151 lines
4.5 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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# 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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# GO_CCFLAGS: Additional 5c/6c/8c arguments to use when
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# building.
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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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# CC: Command line to run to get at host C compiler.
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# Default is "gcc". Also supported: "clang".
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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 ./pkg/runtime/runtime_defs.go
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# Finally! Run the build.
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echo '# Building C bootstrap tool.'
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echo cmd/dist
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export GOROOT="$(cd .. && pwd)"
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GOROOT_FINAL="${GOROOT_FINAL:-$GOROOT}"
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DEFGOROOT='-DGOROOT_FINAL="'"$GOROOT_FINAL"'"'
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mflag=""
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case "$GOHOSTARCH" in
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386) mflag=-m32;;
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amd64) mflag=-m64;;
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esac
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${CC:-gcc} $mflag -O2 -Wall -Werror -o cmd/dist/dist -Icmd/dist "$DEFGOROOT" cmd/dist/*.c
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eval $(./cmd/dist/dist env -p)
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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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echo "# Building compilers and Go bootstrap tool for host, $GOHOSTOS/$GOHOSTARCH."
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buildall="-a"
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if [ "$1" = "--no-clean" ]; then
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buildall=""
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fi
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./cmd/dist/dist bootstrap $buildall -v # builds go_bootstrap
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# Delay move of dist tool to now, because bootstrap may clear tool directory.
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mv cmd/dist/dist "$GOTOOLDIR"/dist
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"$GOTOOLDIR"/go_bootstrap clean -i std
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echo
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if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOHOSTOS" != "$GOOS" ]; then
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echo "# Building packages and commands for host, $GOHOSTOS/$GOHOSTARCH."
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GOOS=$GOHOSTOS GOARCH=$GOHOSTARCH \
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"$GOTOOLDIR"/go_bootstrap install -ccflags "$GO_CCFLAGS" -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std
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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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"$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -ccflags "$GO_CCFLAGS" -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std
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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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