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.
6 # See golang.org/s/go15bootstrap for an overview of the build process.
8 # Environment variables that control make.rc:
10 # GOROOT_FINAL: The expected final Go root, baked into binaries.
11 # The default is the location of the Go tree during the build.
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.
18 # GOARCH: The target architecture for installed packages and tools.
20 # GOOS: The target operating system for installed packages and tools.
22 # GO_GCFLAGS: Additional go tool compile arguments to use when
23 # building the packages and commands.
25 # GO_LDFLAGS: Additional go tool link arguments to use when
26 # building the commands.
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.
34 echo 'make.rc must be run from $GOROOT/src' >[1=2]
38 # Clean old generated file that will cause problems in the build.
39 rm -f ./runtime/runtime_defs.go
41 # Determine the host compiler toolchain.
42 eval `{grep '^(CC|LD|O)=' /$objtype/mkfile}
44 echo '##### Building Go bootstrap tool.'
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 $GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4.' >[1=2]
55 GOROOT=$GOROOT_BOOTSTRAP GOOS='' GOARCH='' $GOROOT_BOOTSTRAP/bin/go build -o cmd/dist/dist ./cmd/dist
57 eval `{./cmd/dist/dist env -9}
61 # Stop after building dist tool.
65 mv cmd/dist/dist $GOTOOLDIR/dist
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
77 # Run only one process at a time on 9vx.
81 if(! ~ $GOHOSTARCH $GOARCH || ! ~ $GOHOSTOS $GOOS){
82 echo '##### Building packages and commands for host,' $GOHOSTOS/$GOHOSTARCH^.
83 GOOS=$GOHOSTOS GOARCH=$GOHOSTARCH GOBIN= \
84 $GOTOOLDIR/go_bootstrap install -gcflags $"GO_GCFLAGS -ldflags $"GO_LDFLAGS -v $pflag std cmd
88 echo '##### Building packages and commands for' $GOOS/$GOARCH^.
89 $GOTOOLDIR/go_bootstrap install -gcflags $"GO_GCFLAGS -ldflags $"GO_LDFLAGS -v $pflag std cmd
92 rm -f $GOTOOLDIR/go_bootstrap
94 if(! ~ $1 --no-banner)
95 $GOTOOLDIR/dist banner