github.com/geraldss/go/src@v0.0.0-20210511222824-ac7d0ebfc235/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 GOENV=off 51 GOFLAGS=() 52 GO111MODULE=() 53 GOROOT = `{cd .. && pwd} 54 if(! ~ $#GOROOT_BOOTSTRAP 1) 55 GOROOT_BOOTSTRAP = $home/go1.4 56 for(p in $path){ 57 if(! test -x $GOROOT_BOOTSTRAP/bin/go){ 58 if(go_exe = `{path=$p whatis go}){ 59 goroot = `{GOROOT='' $go_exe env GOROOT} 60 if(! ~ $goroot $GOROOT){ 61 GOROOT_BOOTSTRAP = $goroot 62 } 63 } 64 } 65 } 66 if(! test -x $GOROOT_BOOTSTRAP/bin/go){ 67 echo 'ERROR: Cannot find '$GOROOT_BOOTSTRAP'/bin/go.' >[1=2] 68 echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4.' >[1=2] 69 exit bootstrap 70 } 71 if(~ $GOROOT_BOOTSTRAP $GOROOT){ 72 echo 'ERROR: $GOROOT_BOOTSTRAP must not be set to $GOROOT' >[1=2] 73 echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4.' >[1=2] 74 exit bootstrap 75 } 76 77 echo 'Building Go cmd/dist using '^$GOROOT_BOOTSTRAP 78 if(~ $#vflag 1) 79 echo cmd/dist 80 GOROOT=$GOROOT_BOOTSTRAP GOOS='' GOARCH='' GO111MODULE=off $GOROOT_BOOTSTRAP/bin/go build -o cmd/dist/dist ./cmd/dist 81 82 eval `{./cmd/dist/dist env -9} 83 if(~ $#vflag 1) 84 echo 85 86 if(~ $1 --dist-tool){ 87 # Stop after building dist tool. 88 mkdir -p $GOTOOLDIR 89 if(! ~ $2 '') 90 cp cmd/dist/dist $2 91 mv cmd/dist/dist $GOTOOLDIR/dist 92 exit 93 } 94 95 buildall = -a 96 if(~ $1 --no-clean) { 97 buildall = () 98 shift 99 } 100 # Run dist bootstrap to complete make.bash. 101 # Bootstrap installs a proper cmd/dist, built with the new toolchain. 102 # Throw ours, built with Go 1.4, away after bootstrap. 103 ./cmd/dist/dist bootstrap $vflag $buildall $* 104 rm -f ./cmd/dist/dist 105 106 # DO NOT ADD ANY NEW CODE HERE. 107 # The bootstrap+rm above are the final step of make.rc. 108 # If something must be added, add it to cmd/dist's cmdbootstrap, 109 # to avoid needing three copies in three different shell languages 110 # (make.bash, make.bat, make.rc).