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Diffstat (limited to 'src/make.bash')
| -rwxr-xr-x | src/make.bash | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/src/make.bash b/src/make.bash new file mode 100755 index 0000000..c07f39b --- /dev/null +++ b/src/make.bash @@ -0,0 +1,229 @@ +#!/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. +# +# CC_FOR_${GOOS}_${GOARCH}: Command line to run to compile C code for specified ${GOOS} and ${GOARCH}. +# (for example, CC_FOR_linux_arm) +# If this is not set, the build will use CC_FOR_TARGET if appropriate, or CC. +# +# CXX_FOR_TARGET: Command line to run to compile C++ code for GOARCH. +# This is used by cgo. Default is CXX, or, if that is not set, +# "g++" or "clang++". +# +# CXX_FOR_${GOOS}_${GOARCH}: Command line to run to compile C++ code for specified ${GOOS} and ${GOARCH}. +# (for example, CXX_FOR_linux_arm) +# If this is not set, the build will use CXX_FOR_TARGET if appropriate, or CXX. +# +# 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 1.17.13 for bootstrap. +# If $GOROOT_BOOTSTRAP/bin/go is missing, $(go env GOROOT) is +# tried for all "go" in $PATH. By default, one of $HOME/go1.17.13, +# $HOME/sdk/go1.17.13, or $HOME/go1.4, whichever exists, in that order. +# We still check $HOME/go1.4 to allow for build scripts that still hard-code +# that name even though they put newer Go toolchains there. + +bootgo=1.17.13 + +set -e + +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 + +# 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 [ "$1" = "-v" ]; then + verbose=true + vflag=-v + shift +fi + +goroot_bootstrap_set=${GOROOT_BOOTSTRAP+"true"} +if [ -z "$GOROOT_BOOTSTRAP" ]; then + GOROOT_BOOTSTRAP="$HOME/go1.4" + for d in sdk/go$bootgo go$bootgo; do + if [ -d "$HOME/$d" ]; then + GOROOT_BOOTSTRAP="$HOME/$d" + fi + done +fi +export GOROOT_BOOTSTRAP + +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 + if [ "$goroot_bootstrap_set" = "true" ]; then + printf 'WARNING: %s does not exist, found %s from env\n' "$GOROOT_BOOTSTRAP/bin/go" "$go_exe" >&2 + printf 'WARNING: set %s as GOROOT_BOOTSTRAP\n' "$goroot" >&2 + fi + 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 $bootgo." >&2 + exit 1 +fi +# Get the exact bootstrap toolchain version to help with debugging. +# We clear GOOS and GOARCH to avoid an ominous but harmless warning if +# the bootstrap doesn't support them. +GOROOT_BOOTSTRAP_VERSION=$(GOOS= GOARCH= GOEXPERIMENT= $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 $bootgo." >&2 + exit 1 +fi +rm -f cmd/dist/dist +GOROOT="$GOROOT_BOOTSTRAP" GOOS="" GOARCH="" GO111MODULE=off GOEXPERIMENT="" GOENV=off GOFLAGS="" "$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 + +# Run dist bootstrap to complete make.bash. +# Bootstrap installs a proper cmd/dist, built with the new toolchain. +# Throw ours, built with the bootstrap toolchain, away after bootstrap. +./cmd/dist/dist bootstrap -a $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). |