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 5g/6g/8g arguments to use when
23 # building the packages and commands.
25 # GO_LDFLAGS: Additional 5l/6l/8l 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 $GOROOT/src' >[1=2]
38 # Generate libc_plan9.h.
39 ../include/plan9/mklibc.rc > ../include/plan9/libc_plan9.h
41 # Clean old generated file that will cause problems in the build.
42 rm -f ./runtime/runtime_defs.go
44 # Determine the host compiler toolchain.
45 eval `{grep '^(CC|LD|O)=' /$objtype/mkfile}
47 echo '# Building Go bootstrap tool.'
49 GOROOT = `{cd .. && pwd}
50 if(! ~ $#GOROOT_BOOTSTRAP 1)
51 GOROOT_BOOTSTRAP = $home/go1.4
52 if(! test -x $GOROOT_BOOTSTRAP/bin/go){
53 echo 'ERROR: Cannot find '$GOROOT_BOOTSTRAP'/bin/go.' >[1=2]
54 echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4.' >[1=2]
58 GOROOT=$GOROOT_BOOTSTRAP GOOS='' GOARCH='' $GOROOT_BOOTSTRAP/bin/go build -o cmd/dist/dist ./cmd/dist
60 eval `{./cmd/dist/dist env -9}
64 # Stop after building dist tool.
68 mv cmd/dist/dist $GOTOOLDIR/dist
72 echo '# Building compilers and Go bootstrap tool for host,' $GOHOSTOS/$GOHOSTARCH^.
76 ./cmd/dist/dist bootstrap $buildall -v # builds go_bootstrap
77 # Delay move of dist tool to now, because bootstrap may clear tool directory.
78 mv cmd/dist/dist $GOTOOLDIR/dist
79 $GOTOOLDIR/go_bootstrap clean -i std
82 # Run only one process at a time on 9vx.
86 if(! ~ $GOHOSTARCH $GOARCH || ! ~ $GOHOSTOS $GOOS){
87 echo '# Building packages and commands for host,' $GOHOSTOS/$GOHOSTARCH^.
88 GOOS=$GOHOSTOS GOARCH=$GOHOSTARCH \
89 $GOTOOLDIR/go_bootstrap install -gcflags $"GO_GCFLAGS -ldflags $"GO_LDFLAGS -v $pflag std
93 echo '# Building packages and commands for' $GOOS/$GOARCH^.
94 $GOTOOLDIR/go_bootstrap install -gcflags $"GO_GCFLAGS -ldflags $"GO_LDFLAGS -v $pflag std
97 rm -f $GOTOOLDIR/go_bootstrap
99 if(! ~ $1 --no-banner)
100 $GOTOOLDIR/dist banner