make.sh (7572B)
1 #!/bin/sh 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.sh: 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 # GO_EXTLINK_ENABLED: Set to 1 to invoke the host linker when building 30 # packages that use cgo. Set to 0 to do all linking internally. This 31 # controls the default behavior of the linker's -linkmode option. The 32 # default value depends on the system. 33 # 34 # GO_LDSO: Sets the default dynamic linker/loader (ld.so) to be used 35 # by the internal linker. 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 # CC_FOR_${GOOS}_${GOARCH}: Command line to run to compile C code for specified ${GOOS} and ${GOARCH}. 44 # (for example, CC_FOR_linux_arm) 45 # If this is not set, the build will use CC_FOR_TARGET if appropriate, or CC. 46 # 47 # CXX_FOR_TARGET: Command line to run to compile C++ code for GOARCH. 48 # This is used by cgo. Default is CXX, or, if that is not set, 49 # "g++" or "clang++". 50 # 51 # CXX_FOR_${GOOS}_${GOARCH}: Command line to run to compile C++ code for specified ${GOOS} and ${GOARCH}. 52 # (for example, CXX_FOR_linux_arm) 53 # If this is not set, the build will use CXX_FOR_TARGET if appropriate, or CXX. 54 # 55 # FC: Command line to run to compile Fortran code for GOARCH. 56 # This is used by cgo. Default is "gfortran". 57 # 58 # PKG_CONFIG: Path to pkg-config tool. Default is "pkg-config". 59 # 60 # GO_DISTFLAGS: extra flags to provide to "dist bootstrap". 61 # (Or just pass them to the make.sh command line.) 62 # 63 # GOBUILDTIMELOGFILE: If set, make.sh and all.bash write 64 # timing information to this file. Useful for profiling where the 65 # time goes when these scripts run. 66 # 67 # GOROOT_BOOTSTRAP: A working Go tree >= Go 1.22.6 for bootstrap. 68 # If $GOROOT_BOOTSTRAP/bin/go is missing, $(go env GOROOT) is 69 # tried for all "go" in $PATH. By default, one of $HOME/go1.22.6, 70 # $HOME/sdk/go1.22.6, or $HOME/go1.4, whichever exists, in that order. 71 # We still check $HOME/go1.4 to allow for build scripts that still hard-code 72 # that name even though they put newer Go toolchains there. 73 74 bootgo=1.22.6 75 76 set -e 77 78 if [ ! -f run.bash ]; then 79 echo 'make.sh must be run from $GOROOT/src' 1>&2 80 exit 1 81 fi 82 83 if [ "$GOBUILDTIMELOGFILE" != "" ]; then 84 echo $(LC_TIME=C date) start make.sh >"$GOBUILDTIMELOGFILE" 85 fi 86 87 # Test for Windows. 88 case "$(uname)" in 89 *MINGW* | *WIN32* | *CYGWIN*) 90 echo 'ERROR: Do not use make.sh to build on Windows.' 91 echo 'Use make.bat instead.' 92 echo 93 exit 1 94 ;; 95 esac 96 97 # Test for bad ld. 98 if ld --version 2>&1 | grep 'gold.* 2\.20' >/dev/null; then 99 echo 'ERROR: Your system has gold 2.20 installed.' 100 echo 'This version is shipped by Ubuntu even though' 101 echo 'it is known not to work on Ubuntu.' 102 echo 'Binaries built with this linker are likely to fail in mysterious ways.' 103 echo 104 echo 'Run sudo apt-get remove binutils-gold.' 105 echo 106 exit 1 107 fi 108 109 # Test for bad SELinux. 110 # On Fedora 16 the selinux filesystem is mounted at /sys/fs/selinux, 111 # so loop through the possible selinux mount points. 112 for se_mount in /selinux /sys/fs/selinux 113 do 114 if [ -d $se_mount ] && [ -f $se_mount/booleans/allow_execstack ] && [ -x /usr/sbin/selinuxenabled ] && /usr/sbin/selinuxenabled; then 115 if ! cat $se_mount/booleans/allow_execstack | grep -c '^1 1$' >> /dev/null ; then 116 echo "WARNING: the default SELinux policy on, at least, Fedora 12 breaks " 117 echo "Go. You can enable the features that Go needs via the following " 118 echo "command (as root):" 119 echo " # setsebool -P allow_execstack 1" 120 echo 121 echo "Note that this affects your system globally! " 122 echo 123 echo "The build will continue in five seconds in case we " 124 echo "misdiagnosed the issue..." 125 126 sleep 5 127 fi 128 fi 129 done 130 131 # Clean old generated file that will cause problems in the build. 132 rm -f ./runtime/runtime_defs.go 133 134 # Finally! Run the build. 135 136 verbose=false 137 vflag="" 138 if [ "$1" = "-v" ]; then 139 verbose=true 140 vflag=-v 141 shift 142 fi 143 144 goroot_bootstrap_set=${GOROOT_BOOTSTRAP+"true"} 145 if [ -z "$GOROOT_BOOTSTRAP" ]; then 146 GOROOT_BOOTSTRAP="$HOME/go1.4" 147 for d in sdk/go$bootgo go$bootgo; do 148 if [ -d "$HOME/$d" ]; then 149 GOROOT_BOOTSTRAP="$HOME/$d" 150 fi 151 done 152 fi 153 export GOROOT_BOOTSTRAP 154 155 bootstrapenv() { 156 GOROOT="$GOROOT_BOOTSTRAP" GO111MODULE=off GOENV=off GOOS= GOARCH= GOEXPERIMENT= GOFLAGS= "$@" 157 } 158 159 export GOROOT="$(cd .. && pwd)" 160 IFS=$'\n'; for go_exe in $(command -v go); do 161 if [ ! -x "$GOROOT_BOOTSTRAP/bin/go" ]; then 162 goroot_bootstrap=$GOROOT_BOOTSTRAP 163 GOROOT_BOOTSTRAP="" 164 goroot=$(bootstrapenv "$go_exe" env GOROOT) 165 GOROOT_BOOTSTRAP=$goroot_bootstrap 166 if [ "$goroot" != "$GOROOT" ]; then 167 if [ "$goroot_bootstrap_set" = "true" ]; then 168 printf 'WARNING: %s does not exist, found %s from env\n' "$GOROOT_BOOTSTRAP/bin/go" "$go_exe" >&2 169 printf 'WARNING: set %s as GOROOT_BOOTSTRAP\n' "$goroot" >&2 170 fi 171 GOROOT_BOOTSTRAP="$goroot" 172 fi 173 fi 174 done; unset IFS 175 if [ ! -x "$GOROOT_BOOTSTRAP/bin/go" ]; then 176 echo "ERROR: Cannot find $GOROOT_BOOTSTRAP/bin/go." >&2 177 echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go $bootgo." >&2 178 exit 1 179 fi 180 # Get the exact bootstrap toolchain version to help with debugging. 181 # We clear GOOS and GOARCH to avoid an ominous but harmless warning if 182 # the bootstrap doesn't support them. 183 GOROOT_BOOTSTRAP_VERSION=$(bootstrapenv "$GOROOT_BOOTSTRAP/bin/go" version | sed 's/go version //') 184 echo "Building Go cmd/dist using $GOROOT_BOOTSTRAP. ($GOROOT_BOOTSTRAP_VERSION)" 185 if $verbose; then 186 echo cmd/dist 187 fi 188 if [ "$GOROOT_BOOTSTRAP" = "$GOROOT" ]; then 189 echo "ERROR: \$GOROOT_BOOTSTRAP must not be set to \$GOROOT" >&2 190 echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go $bootgo." >&2 191 exit 1 192 fi 193 rm -f cmd/dist/dist 194 bootstrapenv "$GOROOT_BOOTSTRAP/bin/go" build -o cmd/dist/dist ./cmd/dist 195 196 # -e doesn't propagate out of eval, so check success by hand. 197 eval $(./cmd/dist/dist env -p || echo FAIL=true) 198 if [ "$FAIL" = true ]; then 199 exit 1 200 fi 201 202 if $verbose; then 203 echo 204 fi 205 206 if [ "$1" = "--dist-tool" ]; then 207 # Stop after building dist tool. 208 mkdir -p "$GOTOOLDIR" 209 if [ "$2" != "" ]; then 210 cp cmd/dist/dist "$2" 211 fi 212 mv cmd/dist/dist "$GOTOOLDIR"/dist 213 exit 0 214 fi 215 216 # Run dist bootstrap to complete make.sh. 217 # Bootstrap installs a proper cmd/dist, built with the new toolchain. 218 # Throw ours, built with the bootstrap toolchain, away after bootstrap. 219 ./cmd/dist/dist bootstrap -a $vflag $GO_DISTFLAGS "$@" 220 rm -f ./cmd/dist/dist 221 222 # DO NOT ADD ANY NEW CODE HERE. 223 # The bootstrap+rm above are the final step of make.sh. 224 # If something must be added, add it to cmd/dist's cmdbootstrap, 225 # to avoid needing three copies in three different shell languages 226 # (make.sh, make.bat, make.rc).