Text file src/make.rc

Documentation: Index

     1#!/bin/rc -e
     2# Copyright 2012 The Go Authors. All rights reserved.
     3# Use of this source code is governed by a BSD-style
     4# license that can be found in the LICENSE file.
     5
     6# See golang.org/s/go15bootstrap for an overview of the build process.
     7
     8# Environment variables that control make.rc:
     9#
    10# GOROOT_FINAL: The expected final Go root, baked into binaries.
    11# The default is the location of the Go tree during the build.
    12#
    13# GOHOSTARCH: The architecture for host tools (compilers and
    14# binaries).  Binaries of this type must be executable on the current
    15# system, so the only common reason to set this is to set
    16# GOHOSTARCH=386 on an amd64 machine.
    17#
    18# GOARCH: The target architecture for installed packages and tools.
    19#
    20# GOOS: The target operating system for installed packages and tools.
    21#
    22# GO_GCFLAGS: Additional go tool compile arguments to use when
    23# building the packages and commands.
    24#
    25# GO_LDFLAGS: Additional go tool link arguments to use when
    26# building the commands.
    27#
    28# CGO_ENABLED: Controls cgo usage during the build. Set it to 1
    29# to include all cgo related files, .c and .go file with "cgo"
    30# build directive, in the build. Set it to 0 to ignore them.
    31
    32rfork e
    33if(! test -f run.rc){
    34	echo 'make.rc must be run from $GOROOT/src' >[1=2]
    35	exit wrongdir
    36}
    37
    38# Clean old generated file that will cause problems in the build.
    39rm -f ./runtime/runtime_defs.go
    40
    41# Determine the host compiler toolchain.
    42eval `{grep '^(CC|LD|O)=' /$objtype/mkfile}
    43
    44vflag=()
    45if(~ $1 -v) {
    46	vflag=(-v)
    47	shift
    48}
    49
    50GOROOT = `{cd .. && pwd}
    51goroot_bootstrap_set = 'true'
    52if(! ~ $#GOROOT_BOOTSTRAP 1){
    53	goroot_bootstrap_set = 'false'
    54	GOROOT_BOOTSTRAP = $home/go1.4
    55	for(d in sdk/go1.17 go1.17)
    56		if(test -d $home/$d)
    57			GOROOT_BOOTSTRAP = $home/$d
    58}
    59for(p in $path){
    60	if(! test -x $GOROOT_BOOTSTRAP/bin/go){
    61		if(go_exe = `{path=$p whatis go}){
    62			goroot = `{GOROOT='' $go_exe env GOROOT}
    63			if(! ~ $goroot $GOROOT){
    64				if(~ $goroot_bootstrap_set 'true'){
    65					echo 'WARNING: '$GOROOT_BOOTSTRAP'/bin/go does not exist, found '$go_exe' from env' >[1=2]
    66					echo 'WARNING: set '$goroot' as GOROOT_BOOTSTRAP' >[1=2]
    67				}
    68				GOROOT_BOOTSTRAP = $goroot
    69			}
    70		}
    71	}
    72}
    73if(! test -x $GOROOT_BOOTSTRAP/bin/go){
    74	echo 'ERROR: Cannot find '$GOROOT_BOOTSTRAP'/bin/go.' >[1=2]
    75	echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4.' >[1=2]
    76	exit bootstrap
    77}
    78if(~ $GOROOT_BOOTSTRAP $GOROOT){
    79	echo 'ERROR: $GOROOT_BOOTSTRAP must not be set to $GOROOT' >[1=2]
    80	echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4.' >[1=2]
    81	exit bootstrap
    82}
    83
    84echo 'Building Go cmd/dist using '^$GOROOT_BOOTSTRAP
    85if(~ $#vflag 1)
    86	echo cmd/dist
    87GOROOT=$GOROOT_BOOTSTRAP GOOS='' GOARCH='' GOEXPERIMENT='' GO111MODULE=off GOENV=off GOFLAGS='' $GOROOT_BOOTSTRAP/bin/go build -o cmd/dist/dist ./cmd/dist
    88
    89eval `{./cmd/dist/dist env -9}
    90if(~ $#vflag 1)
    91	echo
    92
    93if(~ $1 --dist-tool){
    94	# Stop after building dist tool.
    95	mkdir -p $GOTOOLDIR
    96	if(! ~ $2 '')
    97		cp cmd/dist/dist $2
    98	mv cmd/dist/dist $GOTOOLDIR/dist
    99	exit
   100}
   101
   102# Run dist bootstrap to complete make.bash.
   103# Bootstrap installs a proper cmd/dist, built with the new toolchain.
   104# Throw ours, built with Go 1.4, away after bootstrap.
   105./cmd/dist/dist bootstrap -a $vflag $*
   106rm -f ./cmd/dist/dist
   107
   108# DO NOT ADD ANY NEW CODE HERE.
   109# The bootstrap+rm above are the final step of make.rc.
   110# If something must be added, add it to cmd/dist's cmdbootstrap,
   111# to avoid needing three copies in three different shell languages
   112# (make.bash, make.bat, make.rc).

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