mirror of
https://github.com/golang/go
synced 2024-11-26 15:36:59 -07:00
32a08d09b8
Updates #22912 Fixes #23610 Change-Id: Id1c91fc3f040412d5931dba40e430685793f8eea Reviewed-on: https://go-review.googlesource.com/90715 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
120 lines
3.7 KiB
Bash
Executable File
120 lines
3.7 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
# Copyright 2015 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.
|
|
|
|
# When run as (for example)
|
|
#
|
|
# GOOS=linux GOARCH=ppc64 bootstrap.bash
|
|
#
|
|
# this script cross-compiles a toolchain for that GOOS/GOARCH
|
|
# combination, leaving the resulting tree in ../../go-${GOOS}-${GOARCH}-bootstrap.
|
|
# That tree can be copied to a machine of the given target type
|
|
# and used as $GOROOT_BOOTSTRAP to bootstrap a local build.
|
|
#
|
|
# Only changes that have been committed to Git (at least locally,
|
|
# not necessary reviewed and submitted to master) are included in the tree.
|
|
#
|
|
# As a special case for Go's internal use only, if the
|
|
# BOOTSTRAP_FORMAT environment variable is set to "mintgz", the
|
|
# resulting archive is intended for use by the Go build system and
|
|
# differs in that the mintgz file:
|
|
# * is a tar.gz file instead of bz2
|
|
# * has many unnecessary files deleted to reduce its size
|
|
# * does not have a shared directory component for each tar entry
|
|
# Do not depend on the mintgz format.
|
|
|
|
set -e
|
|
|
|
if [ "$GOOS" = "" -o "$GOARCH" = "" ]; then
|
|
echo "usage: GOOS=os GOARCH=arch ./bootstrap.bash" >&2
|
|
exit 2
|
|
fi
|
|
|
|
targ="../../go-${GOOS}-${GOARCH}-bootstrap"
|
|
if [ -e $targ ]; then
|
|
echo "$targ already exists; remove before continuing"
|
|
exit 2
|
|
fi
|
|
|
|
if [ "$BOOTSTRAP_FORMAT" != "mintgz" -a "$BOOTSTRAP_FORMAT" != "" ]; then
|
|
echo "unknown BOOTSTRAP_FORMAT format"
|
|
exit 2
|
|
fi
|
|
|
|
unset GOROOT
|
|
src=$(cd .. && pwd)
|
|
echo "#### Copying to $targ"
|
|
cp -R "$src" "$targ"
|
|
cd "$targ"
|
|
echo
|
|
echo "#### Cleaning $targ"
|
|
rm -f .gitignore
|
|
if [ -e .git ]; then
|
|
git clean -f -d
|
|
fi
|
|
echo
|
|
echo "#### Building $targ"
|
|
echo
|
|
cd src
|
|
./make.bash --no-banner
|
|
gohostos="$(../bin/go env GOHOSTOS)"
|
|
gohostarch="$(../bin/go env GOHOSTARCH)"
|
|
goos="$(../bin/go env GOOS)"
|
|
goarch="$(../bin/go env GOARCH)"
|
|
|
|
# NOTE: Cannot invoke go command after this point.
|
|
# We're about to delete all but the cross-compiled binaries.
|
|
cd ..
|
|
if [ "$goos" = "$gohostos" -a "$goarch" = "$gohostarch" ]; then
|
|
# cross-compile for local system. nothing to copy.
|
|
# useful if you've bootstrapped yourself but want to
|
|
# prepare a clean toolchain for others.
|
|
true
|
|
else
|
|
mv bin/*_*/* bin
|
|
rmdir bin/*_*
|
|
rm -rf "pkg/${gohostos}_${gohostarch}" "pkg/tool/${gohostos}_${gohostarch}"
|
|
fi
|
|
|
|
if [ "$BOOTSTRAP_FORMAT" = "mintgz" ]; then
|
|
# Fetch git revision before rm -rf .git.
|
|
GITREV=$(git rev-parse --short HEAD)
|
|
fi
|
|
|
|
rm -rf pkg/bootstrap pkg/obj .git
|
|
|
|
# Support for building minimal tar.gz for the builders.
|
|
# The build system doesn't support bzip2, and by deleting more stuff,
|
|
# they start faster, especially on machines without fast filesystems
|
|
# and things like tmpfs configures.
|
|
# Do not depend on this format. It's for internal use only.
|
|
if [ "$BOOTSTRAP_FORMAT" = "mintgz" ]; then
|
|
OUTGZ="gobootstrap-${GOOS}-${GOARCH}-${GITREV}.tar.gz"
|
|
echo "Preparing to generate build system's ${OUTGZ}; cleaning ..."
|
|
rm -rf bin/gofmt
|
|
rm -rf src/runtime/race/race_*.syso
|
|
rm -rf api test doc misc/cgo/test misc/trace
|
|
rm -rf pkg/tool/*_*/{addr2line,api,cgo,cover,doc,fix,nm,objdump,pack,pprof,test2json,trace,vet}
|
|
rm -rf pkg/*_*/{image,database,cmd}
|
|
rm -rf $(find . -type d -name testdata)
|
|
find . -type f -name '*_test.go' -exec rm {} \;
|
|
# git clean doesn't clean symlinks apparently, and the buildlet
|
|
# rejects them, so:
|
|
find . -type l -exec rm {} \;
|
|
|
|
echo "Writing ${OUTGZ} ..."
|
|
tar cf - . | gzip -9 > ../$OUTGZ
|
|
cd ..
|
|
ls -l "$(pwd)/$OUTGZ"
|
|
exit 0
|
|
fi
|
|
|
|
echo ----
|
|
echo Bootstrap toolchain for "$GOOS/$GOARCH" installed in "$(pwd)".
|
|
echo Building tbz.
|
|
cd ..
|
|
tar cf - "go-${GOOS}-${GOARCH}-bootstrap" | bzip2 -9 >"go-${GOOS}-${GOARCH}-bootstrap.tbz"
|
|
ls -l "$(pwd)/go-${GOOS}-${GOARCH}-bootstrap.tbz"
|
|
exit 0
|