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