github.com/c9s/go@v0.0.0-20180120015821-984e81f64e0c/src/make.rc (about) 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).