github.com/mh-cbon/go@v0.0.0-20160603070303-9e112a3fe4c0/src/make.bash (about) 1 #!/usr/bin/env bash 2 # Copyright 2009 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.bash: 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 # GO_EXTLINK_ENABLED: Set to 1 to invoke the host linker when building 33 # packages that use cgo. Set to 0 to do all linking internally. This 34 # controls the default behavior of the linker's -linkmode option. The 35 # default value depends on the system. 36 # 37 # CC: Command line to run to compile C code for GOHOSTARCH. 38 # Default is "gcc". Also supported: "clang". 39 # 40 # CC_FOR_TARGET: Command line to run to compile C code for GOARCH. 41 # This is used by cgo. Default is CC. 42 # 43 # CXX_FOR_TARGET: Command line to run to compile C++ code for GOARCH. 44 # This is used by cgo. Default is CXX, or, if that is not set, 45 # "g++" or "clang++". 46 # 47 # FC: Command line to run to compile Fortran code for GOARCH. 48 # This is used by cgo. Default is "gfortran". 49 # 50 # GO_DISTFLAGS: extra flags to provide to "dist bootstrap". 51 52 set -e 53 54 unset GOBIN # Issue 14340 55 56 if [ ! -f run.bash ]; then 57 echo 'make.bash must be run from $GOROOT/src' 1>&2 58 exit 1 59 fi 60 61 # Test for Windows. 62 case "$(uname)" in 63 *MINGW* | *WIN32* | *CYGWIN*) 64 echo 'ERROR: Do not use make.bash to build on Windows.' 65 echo 'Use make.bat instead.' 66 echo 67 exit 1 68 ;; 69 esac 70 71 # Test for bad ld. 72 if ld --version 2>&1 | grep 'gold.* 2\.20' >/dev/null; then 73 echo 'ERROR: Your system has gold 2.20 installed.' 74 echo 'This version is shipped by Ubuntu even though' 75 echo 'it is known not to work on Ubuntu.' 76 echo 'Binaries built with this linker are likely to fail in mysterious ways.' 77 echo 78 echo 'Run sudo apt-get remove binutils-gold.' 79 echo 80 exit 1 81 fi 82 83 # Test for bad SELinux. 84 # On Fedora 16 the selinux filesystem is mounted at /sys/fs/selinux, 85 # so loop through the possible selinux mount points. 86 for se_mount in /selinux /sys/fs/selinux 87 do 88 if [ -d $se_mount -a -f $se_mount/booleans/allow_execstack -a -x /usr/sbin/selinuxenabled ] && /usr/sbin/selinuxenabled; then 89 if ! cat $se_mount/booleans/allow_execstack | grep -c '^1 1$' >> /dev/null ; then 90 echo "WARNING: the default SELinux policy on, at least, Fedora 12 breaks " 91 echo "Go. You can enable the features that Go needs via the following " 92 echo "command (as root):" 93 echo " # setsebool -P allow_execstack 1" 94 echo 95 echo "Note that this affects your system globally! " 96 echo 97 echo "The build will continue in five seconds in case we " 98 echo "misdiagnosed the issue..." 99 100 sleep 5 101 fi 102 fi 103 done 104 105 # Test for debian/kFreeBSD. 106 # cmd/dist will detect kFreeBSD as freebsd/$GOARCH, but we need to 107 # disable cgo manually. 108 if [ "$(uname -s)" == "GNU/kFreeBSD" ]; then 109 export CGO_ENABLED=0 110 fi 111 112 # Clean old generated file that will cause problems in the build. 113 rm -f ./runtime/runtime_defs.go 114 115 # Finally! Run the build. 116 117 echo '##### Building Go bootstrap tool.' 118 echo cmd/dist 119 export GOROOT="$(cd .. && pwd)" 120 GOROOT_BOOTSTRAP=${GOROOT_BOOTSTRAP:-$HOME/go1.4} 121 if [ ! -x "$GOROOT_BOOTSTRAP/bin/go" ]; then 122 echo "ERROR: Cannot find $GOROOT_BOOTSTRAP/bin/go." >&2 123 echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4." >&2 124 exit 1 125 fi 126 if [ "$GOROOT_BOOTSTRAP" == "$GOROOT" ]; then 127 echo "ERROR: \$GOROOT_BOOTSTRAP must not be set to \$GOROOT" >&2 128 echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4." >&2 129 exit 1 130 fi 131 rm -f cmd/dist/dist 132 GOROOT="$GOROOT_BOOTSTRAP" GOOS="" GOARCH="" "$GOROOT_BOOTSTRAP/bin/go" build -o cmd/dist/dist ./cmd/dist 133 134 # -e doesn't propagate out of eval, so check success by hand. 135 eval $(./cmd/dist/dist env -p || echo FAIL=true) 136 if [ "$FAIL" = true ]; then 137 exit 1 138 fi 139 140 echo 141 142 if [ "$1" = "--dist-tool" ]; then 143 # Stop after building dist tool. 144 mkdir -p "$GOTOOLDIR" 145 if [ "$2" != "" ]; then 146 cp cmd/dist/dist "$2" 147 fi 148 mv cmd/dist/dist "$GOTOOLDIR"/dist 149 exit 0 150 fi 151 152 buildall="-a" 153 if [ "$1" = "--no-clean" ]; then 154 buildall="" 155 shift 156 fi 157 ./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap 158 159 # Delay move of dist tool to now, because bootstrap may clear tool directory. 160 mv cmd/dist/dist "$GOTOOLDIR"/dist 161 echo 162 163 if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOHOSTOS" != "$GOOS" ]; then 164 echo "##### Building packages and commands for host, $GOHOSTOS/$GOHOSTARCH." 165 # CC_FOR_TARGET is recorded as the default compiler for the go tool. When building for the host, however, 166 # use the host compiler, CC, from `cmd/dist/dist env` instead. 167 CC=$CC GOOS=$GOHOSTOS GOARCH=$GOHOSTARCH \ 168 "$GOTOOLDIR"/go_bootstrap install -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd 169 echo 170 fi 171 172 echo "##### Building packages and commands for $GOOS/$GOARCH." 173 CC=$CC_FOR_TARGET "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd 174 echo 175 176 rm -f "$GOTOOLDIR"/go_bootstrap 177 178 if [ "$1" != "--no-banner" ]; then 179 "$GOTOOLDIR"/dist banner 180 fi