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go/src/make.rc
Russ Cox f28fa952b5 make.bat, make.rc: show bootstrap toolchain version
Print the bootstrap toolchain version on Plan 9 and Windows,
same as on all Unix systems since CL 204757 (Nov 2019).
This makes it easier to see what is going on in a build.

For #44505.

Change-Id: I50cdd5e15a7c8b908e33e92780f8a3bca65c91ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/419452
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2022-08-03 19:52:27 +00:00

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#!/bin/rc -e
# Copyright 2012 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.rc:
#
# 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.
rfork e
if(! test -f run.rc){
echo 'make.rc must be run from $GOROOT/src' >[1=2]
exit wrongdir
}
# Clean old generated file that will cause problems in the build.
rm -f ./runtime/runtime_defs.go
# Determine the host compiler toolchain.
eval `{grep '^(CC|LD|O)=' /$objtype/mkfile}
vflag=()
if(~ $1 -v) {
vflag=(-v)
shift
}
GOROOT = `{cd .. && pwd}
goroot_bootstrap_set = 'true'
if(! ~ $#GOROOT_BOOTSTRAP 1){
goroot_bootstrap_set = 'false'
GOROOT_BOOTSTRAP = $home/go1.4
for(d in sdk/go1.17 go1.17)
if(test -d $home/$d)
GOROOT_BOOTSTRAP = $home/$d
}
for(p in $path){
if(! test -x $GOROOT_BOOTSTRAP/bin/go){
if(go_exe = `{path=$p whatis go}){
goroot = `{GOROOT='' $go_exe env GOROOT}
if(! ~ $goroot $GOROOT){
if(~ $goroot_bootstrap_set 'true'){
echo 'WARNING: '$GOROOT_BOOTSTRAP'/bin/go does not exist, found '$go_exe' from env' >[1=2]
echo 'WARNING: set '$goroot' as GOROOT_BOOTSTRAP' >[1=2]
}
GOROOT_BOOTSTRAP = $goroot
}
}
}
}
if(! test -x $GOROOT_BOOTSTRAP/bin/go){
echo 'ERROR: Cannot find '$GOROOT_BOOTSTRAP'/bin/go.' >[1=2]
echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4.' >[1=2]
exit bootstrap
}
if(~ $GOROOT_BOOTSTRAP $GOROOT){
echo 'ERROR: $GOROOT_BOOTSTRAP must not be set to $GOROOT' >[1=2]
echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4.' >[1=2]
exit bootstrap
}
# 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(~ $#vflag 1)
echo cmd/dist
GOROOT=$GOROOT_BOOTSTRAP GOOS='' GOARCH='' GOEXPERIMENT='' GO111MODULE=off GOENV=off GOFLAGS='' $GOROOT_BOOTSTRAP/bin/go build -o cmd/dist/dist ./cmd/dist
eval `{./cmd/dist/dist env -9}
if(~ $#vflag 1)
echo
if(~ $1 --dist-tool){
# Stop after building dist tool.
mkdir -p $GOTOOLDIR
if(! ~ $2 '')
cp cmd/dist/dist $2
mv cmd/dist/dist $GOTOOLDIR/dist
exit
}
# 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 -a $vflag $*
rm -f ./cmd/dist/dist
# DO NOT ADD ANY NEW CODE HERE.
# The bootstrap+rm above are the final step of make.rc.
# 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).