Text file src/make.rc

     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	
    32	rfork e
    33	if(! test -f run.rc){
    34		echo 'make.rc must be run from $GOROOT/src' >[1=2]
    35		exit wrongdir
    36	}
    37	
    38	# Clean old generated file that will cause problems in the build.
    39	rm -f ./runtime/runtime_defs.go
    40	
    41	# Determine the host compiler toolchain.
    42	eval `{grep '^(CC|LD|O)=' /$objtype/mkfile}
    43	
    44	vflag=()
    45	if(~ $1 -v) {
    46		vflag=(-v)
    47		shift
    48	}
    49	
    50	GOENV=off
    51	GOFLAGS=()
    52	GO111MODULE=()
    53	GOROOT = `{cd .. && pwd}
    54	if(! ~ $#GOROOT_BOOTSTRAP 1)
    55		GOROOT_BOOTSTRAP = $home/go1.4
    56	for(p in $path){
    57		if(! test -x $GOROOT_BOOTSTRAP/bin/go){
    58			if(go_exe = `{path=$p whatis go}){
    59				goroot = `{GOROOT='' $go_exe env GOROOT}
    60				if(! ~ $goroot $GOROOT){
    61					GOROOT_BOOTSTRAP = $goroot
    62				}
    63			}
    64		}
    65	}
    66	if(! test -x $GOROOT_BOOTSTRAP/bin/go){
    67		echo 'ERROR: Cannot find '$GOROOT_BOOTSTRAP'/bin/go.' >[1=2]
    68		echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4.' >[1=2]
    69		exit bootstrap
    70	}
    71	if(~ $GOROOT_BOOTSTRAP $GOROOT){
    72		echo 'ERROR: $GOROOT_BOOTSTRAP must not be set to $GOROOT' >[1=2]
    73		echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4.' >[1=2]
    74		exit bootstrap
    75	}
    76	
    77	echo 'Building Go cmd/dist using '^$GOROOT_BOOTSTRAP
    78	if(~ $#vflag 1)
    79		echo cmd/dist
    80	GOROOT=$GOROOT_BOOTSTRAP GOOS='' GOARCH='' GO111MODULE=off $GOROOT_BOOTSTRAP/bin/go build -o cmd/dist/dist ./cmd/dist
    81	
    82	eval `{./cmd/dist/dist env -9}
    83	if(~ $#vflag 1)
    84		echo
    85	
    86	if(~ $1 --dist-tool){
    87		# Stop after building dist tool.
    88		mkdir -p $GOTOOLDIR
    89		if(! ~ $2 '')
    90			cp cmd/dist/dist $2
    91		mv cmd/dist/dist $GOTOOLDIR/dist
    92		exit
    93	}
    94	
    95	buildall = -a
    96	if(~ $1 --no-clean) {
    97		buildall = ()
    98		shift
    99	}
   100	# Run dist bootstrap to complete make.bash.
   101	# Bootstrap installs a proper cmd/dist, built with the new toolchain.
   102	# Throw ours, built with Go 1.4, away after bootstrap.
   103	./cmd/dist/dist bootstrap $vflag $buildall $*
   104	rm -f ./cmd/dist/dist
   105	
   106	# DO NOT ADD ANY NEW CODE HERE.
   107	# The bootstrap+rm above are the final step of make.rc.
   108	# If something must be added, add it to cmd/dist's cmdbootstrap,
   109	# to avoid needing three copies in three different shell languages
   110	# (make.bash, make.bat, make.rc).

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