Adding upstream version 1.18.10.upstream/1.18.10upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 121 insertions, 0 deletions

diff --git a/src/bootstrap.bash b/src/bootstrap.bash
new file mode 100755
index 0000000..88c080a
--- /dev/null
+++ b/src/bootstrap.bash
@@ -0,0 +1,121 @@
+#!/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 $targ"
+cp -Rp "$src" "$targ"
+cd "$targ"
+echo
+echo "#### Cleaning $targ"
+chmod -R +w .
+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" = "$gohostarch" ]; then
+	# cross-compile for local system. nothing to copy.
+	# useful if you've bootstrapped yourself but want to
+	# prepare a clean toolchain for others.
+	true
+else
+	rm -f bin/go_${goos}_${goarch}_exec
+	mv bin/*_*/* bin
+	rmdir bin/*_*
+	rm -rf "pkg/${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