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 # GOHOSTARCH: The architecture for host tools (compilers and
11 # binaries). Binaries of this type must be executable on the current
12 # system, so the only common reason to set this is to set
13 # GOHOSTARCH=386 on an amd64 machine.
14 #
15 # GOARCH: The target architecture for installed packages and tools.
16 #
17 # GOOS: The target operating system for installed packages and tools.
18 #
19 # GO_GCFLAGS: Additional go tool compile arguments to use when
20 # building the packages and commands.
21 #
22 # GO_LDFLAGS: Additional go tool link arguments to use when
23 # building the commands.
24 #
25 # CGO_ENABLED: Controls cgo usage during the build. Set it to 1
26 # to include all cgo related files, .c and .go file with "cgo"
27 # build directive, in the build. Set it to 0 to ignore them.
28 29 rfork e
30 if(! test -f run.rc){
31 echo 'make.rc must be run from $GOROOT/src' >[1=2]
32 exit wrongdir
33 }
34 35 # Clean old generated file that will cause problems in the build.
36 rm -f ./runtime/runtime_defs.go
37 38 # Determine the host compiler toolchain.
39 eval `{grep '^(CC|LD|O)=' /$objtype/mkfile}
40 41 vflag=()
42 if(~ $1 -v) {
43 vflag=(-v)
44 shift
45 }
46 47 fn bootstrapenv {
48 GOROOT=$GOROOT_BOOTSTRAP GO111MODULE=off GOENV=off GOOS=() GOARCH=() GOEXPERIMENT=() GOFLAGS=() $*
49 }
50 51 bootgo = 1.22.6
52 GOROOT = `{cd .. && pwd}
53 goroot_bootstrap_set = 'true'
54 if(~ $"GOROOT_BOOTSTRAP ''){
55 goroot_bootstrap_set = 'false'
56 GOROOT_BOOTSTRAP = $home/go1.4
57 for(d in sdk/go$bootgo go$bootgo)
58 if(test -d $home/$d)
59 GOROOT_BOOTSTRAP = $home/$d
60 }
61 for(p in $path){
62 if(! test -x $GOROOT_BOOTSTRAP/bin/go){
63 if(go_exe = `{path=$p whatis go}){
64 goroot_bootstrap = $GOROOT_BOOTSTRAP
65 GOROOT_BOOTSTRAP = ()
66 goroot = `{bootstrapenv $go_exe env GOROOT}
67 GOROOT_BOOTSTRAP = $goroot_bootstrap
68 if(! ~ $goroot $GOROOT){
69 if(~ $goroot_bootstrap_set 'true'){
70 echo 'WARNING: '$GOROOT_BOOTSTRAP'/bin/go does not exist, found '$go_exe' from env' >[1=2]
71 echo 'WARNING: set '$goroot' as GOROOT_BOOTSTRAP' >[1=2]
72 }
73 GOROOT_BOOTSTRAP = $goroot
74 }
75 }
76 }
77 }
78 if(! test -x $GOROOT_BOOTSTRAP/bin/go){
79 echo 'ERROR: Cannot find '$GOROOT_BOOTSTRAP'/bin/go.' >[1=2]
80 echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go '$bootgo'.' >[1=2]
81 exit bootstrap
82 }
83 if(~ $GOROOT_BOOTSTRAP $GOROOT){
84 echo 'ERROR: $GOROOT_BOOTSTRAP must not be set to $GOROOT' >[1=2]
85 echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go '$bootgo'.' >[1=2]
86 exit bootstrap
87 }
88 89 # Get the exact bootstrap toolchain version to help with debugging.
90 # We clear GOOS and GOARCH to avoid an ominous but harmless warning if
91 # the bootstrap doesn't support them.
92 GOROOT_BOOTSTRAP_VERSION=`{bootstrapenv $GOROOT_BOOTSTRAP/bin/go version | sed 's/go version //'}
93 echo 'Building Go cmd/dist using '$GOROOT_BOOTSTRAP'. ('$"GOROOT_BOOTSTRAP_VERSION')'
94 if(~ $#vflag 1)
95 echo cmd/dist
96 bootstrapenv $GOROOT_BOOTSTRAP/bin/go build -o cmd/dist/dist ./cmd/dist
97 98 eval `{./cmd/dist/dist env -9}
99 if(~ $#vflag 1)
100 echo
101 102 if(~ $1 --dist-tool){
103 # Stop after building dist tool.
104 mkdir -p $GOTOOLDIR
105 if(! ~ $2 '')
106 cp cmd/dist/dist $2
107 mv cmd/dist/dist $GOTOOLDIR/dist
108 exit
109 }
110 111 # Run dist bootstrap to complete make.bash.
112 # Bootstrap installs a proper cmd/dist, built with the new toolchain.
113 # Throw ours, built with the bootstrap toolchain, away after bootstrap.
114 ./cmd/dist/dist bootstrap -a $vflag $*
115 rm -f ./cmd/dist/dist
116 117 # DO NOT ADD ANY NEW CODE HERE.
118 # The bootstrap+rm above are the final step of make.rc.
119 # If something must be added, add it to cmd/dist's cmdbootstrap,
120 # to avoid needing three copies in three different shell languages
121 # (make.bash, make.bat, make.rc).
122