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Diffstat (limited to '')
| -rwxr-xr-x | src/make.bash | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/src/make.bash b/src/make.bash new file mode 100755 index 0000000..b58f27b --- /dev/null +++ b/src/make.bash @@ -0,0 +1,222 @@ +#!/usr/bin/env bash +# Copyright 2009 The Go Authors. All rights reserved. +# Use of this source code is governed by a BSD-style +# license that can be found in the LICENSE file. + +# See golang.org/s/go15bootstrap for an overview of the build process. + +# Environment variables that control make.bash: +# +# GOROOT_FINAL: The expected final Go root, baked into binaries. +# The default is the location of the Go tree during the build. +# +# GOHOSTARCH: The architecture for host tools (compilers and +# binaries). Binaries of this type must be executable on the current +# system, so the only common reason to set this is to set +# GOHOSTARCH=386 on an amd64 machine. +# +# GOARCH: The target architecture for installed packages and tools. +# +# GOOS: The target operating system for installed packages and tools. +# +# GO_GCFLAGS: Additional go tool compile arguments to use when +# building the packages and commands. +# +# GO_LDFLAGS: Additional go tool link arguments to use when +# building the commands. +# +# CGO_ENABLED: Controls cgo usage during the build. Set it to 1 +# to include all cgo related files, .c and .go file with "cgo" +# build directive, in the build. Set it to 0 to ignore them. +# +# GO_EXTLINK_ENABLED: Set to 1 to invoke the host linker when building +# packages that use cgo. Set to 0 to do all linking internally. This +# controls the default behavior of the linker's -linkmode option. The +# default value depends on the system. +# +# GO_LDSO: Sets the default dynamic linker/loader (ld.so) to be used +# by the internal linker. +# +# CC: Command line to run to compile C code for GOHOSTARCH. +# Default is "gcc". Also supported: "clang". +# +# CC_FOR_TARGET: Command line to run to compile C code for GOARCH. +# This is used by cgo. Default is CC. +# +# CXX_FOR_TARGET: Command line to run to compile C++ code for GOARCH. +# This is used by cgo. Default is CXX, or, if that is not set, +# "g++" or "clang++". +# +# FC: Command line to run to compile Fortran code for GOARCH. +# This is used by cgo. Default is "gfortran". +# +# PKG_CONFIG: Path to pkg-config tool. Default is "pkg-config". +# +# GO_DISTFLAGS: extra flags to provide to "dist bootstrap". +# (Or just pass them to the make.bash command line.) +# +# GOBUILDTIMELOGFILE: If set, make.bash and all.bash write +# timing information to this file. Useful for profiling where the +# time goes when these scripts run. +# +# GOROOT_BOOTSTRAP: A working Go tree >= Go 1.4 for bootstrap. +# If $GOROOT_BOOTSTRAP/bin/go is missing, $(go env GOROOT) is +# tried for all "go" in $PATH. $HOME/go1.4 by default. + +set -e + +export GOENV=off +unset GOBIN # Issue 14340 +unset GOFLAGS +unset GO111MODULE + +if [ ! -f run.bash ]; then + echo 'make.bash must be run from $GOROOT/src' 1>&2 + exit 1 +fi + +if [ "$GOBUILDTIMELOGFILE" != "" ]; then + echo $(LC_TIME=C date) start make.bash >"$GOBUILDTIMELOGFILE" +fi + +# Test for Windows. +case "$(uname)" in +*MINGW* | *WIN32* | *CYGWIN*) + echo 'ERROR: Do not use make.bash to build on Windows.' + echo 'Use make.bat instead.' + echo + exit 1 + ;; +esac + +# Test for bad ld. +if ld --version 2>&1 | grep 'gold.* 2\.20' >/dev/null; then + echo 'ERROR: Your system has gold 2.20 installed.' + echo 'This version is shipped by Ubuntu even though' + echo 'it is known not to work on Ubuntu.' + echo 'Binaries built with this linker are likely to fail in mysterious ways.' + echo + echo 'Run sudo apt-get remove binutils-gold.' + echo + exit 1 +fi + +# Test for bad SELinux. +# On Fedora 16 the selinux filesystem is mounted at /sys/fs/selinux, +# so loop through the possible selinux mount points. +for se_mount in /selinux /sys/fs/selinux +do + if [ -d $se_mount -a -f $se_mount/booleans/allow_execstack -a -x /usr/sbin/selinuxenabled ] && /usr/sbin/selinuxenabled; then + if ! cat $se_mount/booleans/allow_execstack | grep -c '^1 1$' >> /dev/null ; then + echo "WARNING: the default SELinux policy on, at least, Fedora 12 breaks " + echo "Go. You can enable the features that Go needs via the following " + echo "command (as root):" + echo " # setsebool -P allow_execstack 1" + echo + echo "Note that this affects your system globally! " + echo + echo "The build will continue in five seconds in case we " + echo "misdiagnosed the issue..." + + sleep 5 + fi + fi +done + +# Test for debian/kFreeBSD. +# cmd/dist will detect kFreeBSD as freebsd/$GOARCH, but we need to +# disable cgo manually. +if [ "$(uname -s)" = "GNU/kFreeBSD" ]; then + export CGO_ENABLED=0 +fi + +# On Alpine Linux, use the musl dynamic linker/loader +if [ -f "/etc/alpine-release" ]; then + if type readelf >/dev/null 2>&1; then + echo "int main() { return 0; }" | ${CC:-gcc} -o ./test-alpine-ldso -x c - + export GO_LDSO=$(readelf -l ./test-alpine-ldso | grep 'interpreter:' | sed -e 's/^.*interpreter: \(.*\)[]]/\1/') + rm -f ./test-alpine-ldso + fi +fi + +# Clean old generated file that will cause problems in the build. +rm -f ./runtime/runtime_defs.go + +# Finally! Run the build. + +verbose=false +vflag="" +if [ "$1" = "-v" ]; then + verbose=true + vflag=-v + shift +fi + +export GOROOT_BOOTSTRAP=${GOROOT_BOOTSTRAP:-$HOME/go1.4} +export GOROOT="$(cd .. && pwd)" +IFS=$'\n'; for go_exe in $(type -ap go); do + if [ ! -x "$GOROOT_BOOTSTRAP/bin/go" ]; then + goroot=$(GOROOT='' GOOS='' GOARCH='' "$go_exe" env GOROOT) + if [ "$goroot" != "$GOROOT" ]; then + GOROOT_BOOTSTRAP=$goroot + fi + fi +done; unset IFS +if [ ! -x "$GOROOT_BOOTSTRAP/bin/go" ]; then + echo "ERROR: Cannot find $GOROOT_BOOTSTRAP/bin/go." >&2 + echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4." >&2 + exit 1 +fi +# Get the exact bootstrap toolchain version to help with debugging. +# We clear GOOS and GOARCH to avoid an ominous but harmless warning if +# the bootstrap doesn't support them. +GOROOT_BOOTSTRAP_VERSION=$(GOOS= GOARCH= $GOROOT_BOOTSTRAP/bin/go version | sed 's/go version //') +echo "Building Go cmd/dist using $GOROOT_BOOTSTRAP. ($GOROOT_BOOTSTRAP_VERSION)" +if $verbose; then + echo cmd/dist +fi +if [ "$GOROOT_BOOTSTRAP" = "$GOROOT" ]; then + echo "ERROR: \$GOROOT_BOOTSTRAP must not be set to \$GOROOT" >&2 + echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4." >&2 + exit 1 +fi +rm -f cmd/dist/dist +GOROOT="$GOROOT_BOOTSTRAP" GOOS="" GOARCH="" GO111MODULE=off "$GOROOT_BOOTSTRAP/bin/go" build -o cmd/dist/dist ./cmd/dist + +# -e doesn't propagate out of eval, so check success by hand. +eval $(./cmd/dist/dist env -p || echo FAIL=true) +if [ "$FAIL" = true ]; then + exit 1 +fi + +if $verbose; then + echo +fi + +if [ "$1" = "--dist-tool" ]; then + # Stop after building dist tool. + mkdir -p "$GOTOOLDIR" + if [ "$2" != "" ]; then + cp cmd/dist/dist "$2" + fi + mv cmd/dist/dist "$GOTOOLDIR"/dist + exit 0 +fi + +buildall="-a" +if [ "$1" = "--no-clean" ]; then + buildall="" + shift +fi + +# Run dist bootstrap to complete make.bash. +# Bootstrap installs a proper cmd/dist, built with the new toolchain. +# Throw ours, built with Go 1.4, away after bootstrap. +./cmd/dist/dist bootstrap $buildall $vflag $GO_DISTFLAGS "$@" +rm -f ./cmd/dist/dist + +# DO NOT ADD ANY NEW CODE HERE. +# The bootstrap+rm above are the final step of make.bash. +# If something must be added, add it to cmd/dist's cmdbootstrap, +# to avoid needing three copies in three different shell languages +# (make.bash, make.bat, make.rc). |