| #!/bin/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 $GOROOT_BOOTSTRAP to bootstrap a local build. |
| # |
| # Only changes that have been committed to Git (at least locally, |
| # not necessary reviewed and submitted to master) are included in the tree. |
| |
| set -e |
| |
| if [ "$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 |
| |
| unset GOROOT |
| src=$(cd .. && pwd) |
| echo "#### Copying to $targ" |
| cp -R "$src" "$targ" |
| cd "$targ" |
| echo |
| echo "#### Cleaning $targ" |
| rm .gitignore |
| git clean -f -d |
| 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}_${gohostarch}" |
| fi |
| rm -rf pkg/bootstrap pkg/obj .git |
| |
| echo ---- |
| echo Bootstrap toolchain for "$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 |