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      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 echo '##### Building Go bootstrap tool.'
     45 echo cmd/dist
     46 GOROOT = `{cd .. && pwd}
     47 if(! ~ $#GOROOT_BOOTSTRAP 1)
     48 	GOROOT_BOOTSTRAP = $home/go1.4
     49 if(! test -x $GOROOT_BOOTSTRAP/bin/go){
     50 	echo 'ERROR: Cannot find '$GOROOT_BOOTSTRAP'/bin/go.' >[1=2]
     51 	echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4.' >[1=2]
     52 	exit bootstrap
     53 }
     54 rm -f cmd/dist/dist
     55 GOROOT=$GOROOT_BOOTSTRAP GOOS='' GOARCH='' $GOROOT_BOOTSTRAP/bin/go build -o cmd/dist/dist ./cmd/dist
     56 
     57 eval `{./cmd/dist/dist env -9}
     58 echo
     59 
     60 if(~ $1 --dist-tool){
     61 	# Stop after building dist tool.
     62 	mkdir -p $GOTOOLDIR
     63 	if(! ~ $2 '')
     64 		cp cmd/dist/dist $2
     65 	mv cmd/dist/dist $GOTOOLDIR/dist
     66 	exit
     67 }
     68 
     69 buildall = -a
     70 if(~ $1 --no-clean)
     71 	buildall = ()
     72 ./cmd/dist/dist bootstrap $buildall -v # builds go_bootstrap
     73 # Delay move of dist tool to now, because bootstrap may clear tool directory.
     74 mv cmd/dist/dist $GOTOOLDIR/dist
     75 echo
     76 
     77 # Run only one process at a time on 9vx.
     78 if(~ $sysname vx32)
     79 	pflag = (-p 1)
     80 
     81 if(! ~ $GOHOSTARCH $GOARCH || ! ~ $GOHOSTOS $GOOS){
     82 	echo '##### Building packages and commands for host,' $GOHOSTOS/$GOHOSTARCH^.
     83 	GOOS=$GOHOSTOS GOARCH=$GOHOSTARCH \
     84 		$GOTOOLDIR/go_bootstrap install -gcflags $"GO_GCFLAGS -ldflags $"GO_LDFLAGS -v $pflag std cmd
     85 	echo
     86 }
     87 
     88 echo '##### Building packages and commands for' $GOOS/$GOARCH^.
     89 $GOTOOLDIR/go_bootstrap install -gcflags $"GO_GCFLAGS -ldflags $"GO_LDFLAGS -v $pflag std cmd
     90 echo
     91 
     92 rm -f $GOTOOLDIR/go_bootstrap
     93 
     94 if(! ~ $1 --no-banner)
     95 	$GOTOOLDIR/dist banner
     96 
     97 status=''
     98