github.com/mattn/go@v0.0.0-20171011075504-07f7db3ea99f/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 # PKG_CONFIG: Path to pkg-config tool. Default is "pkg-config". 51 # 52 # GO_DISTFLAGS: extra flags to provide to "dist bootstrap". 53 54 set -e 55 56 unset GOBIN # Issue 14340 57 58 if [ ! -f run.bash ]; then 59 echo 'make.bash must be run from $GOROOT/src' 1>&2 60 exit 1 61 fi 62 63 # Test for Windows. 64 case "$(uname)" in 65 *MINGW* | *WIN32* | *CYGWIN*) 66 echo 'ERROR: Do not use make.bash to build on Windows.' 67 echo 'Use make.bat instead.' 68 echo 69 exit 1 70 ;; 71 esac 72 73 # Test for bad ld. 74 if ld --version 2>&1 | grep 'gold.* 2\.20' >/dev/null; then 75 echo 'ERROR: Your system has gold 2.20 installed.' 76 echo 'This version is shipped by Ubuntu even though' 77 echo 'it is known not to work on Ubuntu.' 78 echo 'Binaries built with this linker are likely to fail in mysterious ways.' 79 echo 80 echo 'Run sudo apt-get remove binutils-gold.' 81 echo 82 exit 1 83 fi 84 85 # Test for bad SELinux. 86 # On Fedora 16 the selinux filesystem is mounted at /sys/fs/selinux, 87 # so loop through the possible selinux mount points. 88 for se_mount in /selinux /sys/fs/selinux 89 do 90 if [ -d $se_mount -a -f $se_mount/booleans/allow_execstack -a -x /usr/sbin/selinuxenabled ] && /usr/sbin/selinuxenabled; then 91 if ! cat $se_mount/booleans/allow_execstack | grep -c '^1 1$' >> /dev/null ; then 92 echo "WARNING: the default SELinux policy on, at least, Fedora 12 breaks " 93 echo "Go. You can enable the features that Go needs via the following " 94 echo "command (as root):" 95 echo " # setsebool -P allow_execstack 1" 96 echo 97 echo "Note that this affects your system globally! " 98 echo 99 echo "The build will continue in five seconds in case we " 100 echo "misdiagnosed the issue..." 101 102 sleep 5 103 fi 104 fi 105 done 106 107 # Test for debian/kFreeBSD. 108 # cmd/dist will detect kFreeBSD as freebsd/$GOARCH, but we need to 109 # disable cgo manually. 110 if [ "$(uname -s)" = "GNU/kFreeBSD" ]; then 111 export CGO_ENABLED=0 112 fi 113 114 # Clean old generated file that will cause problems in the build. 115 rm -f ./runtime/runtime_defs.go 116 117 # Finally! Run the build. 118 119 echo '##### Building Go bootstrap tool.' 120 echo cmd/dist 121 export GOROOT="$(cd .. && pwd)" 122 export GOROOT_BOOTSTRAP=${GOROOT_BOOTSTRAP:-$HOME/go1.4} 123 for go_exe in $(type -ap go); do 124 if [ ! -x "$GOROOT_BOOTSTRAP/bin/go" ]; then 125 goroot=$(GOROOT='' $go_exe env GOROOT) 126 if [ "$goroot" != "$GOROOT" ]; then 127 GOROOT_BOOTSTRAP=$goroot 128 fi 129 fi 130 done 131 if [ ! -x "$GOROOT_BOOTSTRAP/bin/go" ]; then 132 echo "ERROR: Cannot find $GOROOT_BOOTSTRAP/bin/go." >&2 133 echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4." >&2 134 exit 1 135 fi 136 if [ "$GOROOT_BOOTSTRAP" = "$GOROOT" ]; then 137 echo "ERROR: \$GOROOT_BOOTSTRAP must not be set to \$GOROOT" >&2 138 echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4." >&2 139 exit 1 140 fi 141 rm -f cmd/dist/dist 142 GOROOT="$GOROOT_BOOTSTRAP" GOOS="" GOARCH="" "$GOROOT_BOOTSTRAP/bin/go" build -o cmd/dist/dist ./cmd/dist 143 144 # -e doesn't propagate out of eval, so check success by hand. 145 eval $(./cmd/dist/dist env -p || echo FAIL=true) 146 if [ "$FAIL" = true ]; then 147 exit 1 148 fi 149 150 echo 151 152 if [ "$1" = "--dist-tool" ]; then 153 # Stop after building dist tool. 154 mkdir -p "$GOTOOLDIR" 155 if [ "$2" != "" ]; then 156 cp cmd/dist/dist "$2" 157 fi 158 mv cmd/dist/dist "$GOTOOLDIR"/dist 159 exit 0 160 fi 161 162 buildall="-a" 163 if [ "$1" = "--no-clean" ]; then 164 buildall="" 165 shift 166 fi 167 ./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap 168 169 # Delay move of dist tool to now, because bootstrap may clear tool directory. 170 mv cmd/dist/dist "$GOTOOLDIR"/dist 171 echo 172 173 if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOHOSTOS" != "$GOOS" ]; then 174 echo "##### Building packages and commands for host, $GOHOSTOS/$GOHOSTARCH." 175 # CC_FOR_TARGET is recorded as the default compiler for the go tool. When building for the host, however, 176 # use the host compiler, CC, from `cmd/dist/dist env` instead. 177 CC=$CC GOOS=$GOHOSTOS GOARCH=$GOHOSTARCH \ 178 "$GOTOOLDIR"/go_bootstrap install -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd 179 echo 180 fi 181 182 echo "##### Building packages and commands for $GOOS/$GOARCH." 183 184 old_bin_files=$(cd $GOROOT/bin && echo *) 185 186 CC=$CC_FOR_TARGET "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd 187 188 # Check that there are no new files in $GOROOT/bin other than go and gofmt 189 # and $GOOS_$GOARCH (a directory used when cross-compiling). 190 (cd $GOROOT/bin && for f in *; do 191 if ! expr " $old_bin_files go gofmt ${GOOS}_${GOARCH} " : ".* $f " >/dev/null 2>/dev/null; then 192 echo 1>&2 "ERROR: unexpected new file in $GOROOT/bin: $f" 193 exit 1 194 fi 195 done) 196 197 echo 198 199 rm -f "$GOTOOLDIR"/go_bootstrap 200 201 if [ "$1" != "--no-banner" ]; then 202 "$GOTOOLDIR"/dist banner 203 fi