github.com/megatontech/mynoteforgo@v0.0.0-20200507084910-5d0c6ea6e890/源码/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 # (Or just pass them to the make.bash command line.) 54 # 55 # GOBUILDTIMELOGFILE: If set, make.bash and all.bash write 56 # timing information to this file. Useful for profiling where the 57 # time goes when these scripts run. 58 # 59 # GOROOT_BOOTSTRAP: A working Go tree >= Go 1.4 for bootstrap. 60 # If $GOROOT_BOOTSTRAP/bin/go is missing, $(go env GOROOT) is 61 # tried for all "go" in $PATH. $HOME/go1.4 by default. 62 63 set -e 64 65 unset GOBIN # Issue 14340 66 unset GOFLAGS 67 unset GO111MODULE 68 69 if [ ! -f run.bash ]; then 70 echo 'make.bash must be run from $GOROOT/src' 1>&2 71 exit 1 72 fi 73 74 if [ "$GOBUILDTIMELOGFILE" != "" ]; then 75 echo $(LC_TIME=C date) start make.bash >"$GOBUILDTIMELOGFILE" 76 fi 77 78 # Test for Windows. 79 case "$(uname)" in 80 *MINGW* | *WIN32* | *CYGWIN*) 81 echo 'ERROR: Do not use make.bash to build on Windows.' 82 echo 'Use make.bat instead.' 83 echo 84 exit 1 85 ;; 86 esac 87 88 # Test for bad ld. 89 if ld --version 2>&1 | grep 'gold.* 2\.20' >/dev/null; then 90 echo 'ERROR: Your system has gold 2.20 installed.' 91 echo 'This version is shipped by Ubuntu even though' 92 echo 'it is known not to work on Ubuntu.' 93 echo 'Binaries built with this linker are likely to fail in mysterious ways.' 94 echo 95 echo 'Run sudo apt-get remove binutils-gold.' 96 echo 97 exit 1 98 fi 99 100 # Test for bad SELinux. 101 # On Fedora 16 the selinux filesystem is mounted at /sys/fs/selinux, 102 # so loop through the possible selinux mount points. 103 for se_mount in /selinux /sys/fs/selinux 104 do 105 if [ -d $se_mount -a -f $se_mount/booleans/allow_execstack -a -x /usr/sbin/selinuxenabled ] && /usr/sbin/selinuxenabled; then 106 if ! cat $se_mount/booleans/allow_execstack | grep -c '^1 1$' >> /dev/null ; then 107 echo "WARNING: the default SELinux policy on, at least, Fedora 12 breaks " 108 echo "Go. You can enable the features that Go needs via the following " 109 echo "command (as root):" 110 echo " # setsebool -P allow_execstack 1" 111 echo 112 echo "Note that this affects your system globally! " 113 echo 114 echo "The build will continue in five seconds in case we " 115 echo "misdiagnosed the issue..." 116 117 sleep 5 118 fi 119 fi 120 done 121 122 # Test for debian/kFreeBSD. 123 # cmd/dist will detect kFreeBSD as freebsd/$GOARCH, but we need to 124 # disable cgo manually. 125 if [ "$(uname -s)" = "GNU/kFreeBSD" ]; then 126 export CGO_ENABLED=0 127 fi 128 129 # Clean old generated file that will cause problems in the build. 130 rm -f ./runtime/runtime_defs.go 131 132 # Finally! Run the build. 133 134 verbose=false 135 vflag="" 136 if [ "$1" = "-v" ]; then 137 verbose=true 138 vflag=-v 139 shift 140 fi 141 142 export GOROOT_BOOTSTRAP=${GOROOT_BOOTSTRAP:-$HOME/go1.4} 143 export GOROOT="$(cd .. && pwd)" 144 IFS=$'\n'; for go_exe in $(type -ap go); do 145 if [ ! -x "$GOROOT_BOOTSTRAP/bin/go" ]; then 146 goroot=$(GOROOT='' GOOS='' GOARCH='' "$go_exe" env GOROOT) 147 if [ "$goroot" != "$GOROOT" ]; then 148 GOROOT_BOOTSTRAP=$goroot 149 fi 150 fi 151 done; unset IFS 152 echo "Building Go cmd/dist using $GOROOT_BOOTSTRAP." 153 if $verbose; then 154 echo cmd/dist 155 fi 156 if [ ! -x "$GOROOT_BOOTSTRAP/bin/go" ]; then 157 echo "ERROR: Cannot find $GOROOT_BOOTSTRAP/bin/go." >&2 158 echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4." >&2 159 exit 1 160 fi 161 if [ "$GOROOT_BOOTSTRAP" = "$GOROOT" ]; then 162 echo "ERROR: \$GOROOT_BOOTSTRAP must not be set to \$GOROOT" >&2 163 echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4." >&2 164 exit 1 165 fi 166 rm -f cmd/dist/dist 167 GOROOT="$GOROOT_BOOTSTRAP" GOOS="" GOARCH="" "$GOROOT_BOOTSTRAP/bin/go" build -o cmd/dist/dist ./cmd/dist 168 169 # -e doesn't propagate out of eval, so check success by hand. 170 eval $(./cmd/dist/dist env -p || echo FAIL=true) 171 if [ "$FAIL" = true ]; then 172 exit 1 173 fi 174 175 if $verbose; then 176 echo 177 fi 178 179 if [ "$1" = "--dist-tool" ]; then 180 # Stop after building dist tool. 181 mkdir -p "$GOTOOLDIR" 182 if [ "$2" != "" ]; then 183 cp cmd/dist/dist "$2" 184 fi 185 mv cmd/dist/dist "$GOTOOLDIR"/dist 186 exit 0 187 fi 188 189 buildall="-a" 190 if [ "$1" = "--no-clean" ]; then 191 buildall="" 192 shift 193 fi 194 195 # Run dist bootstrap to complete make.bash. 196 # Bootstrap installs a proper cmd/dist, built with the new toolchain. 197 # Throw ours, built with Go 1.4, away after bootstrap. 198 ./cmd/dist/dist bootstrap $buildall $vflag $GO_DISTFLAGS "$@" 199 rm -f ./cmd/dist/dist 200 201 # DO NOT ADD ANY NEW CODE HERE. 202 # The bootstrap+rm above are the final step of make.bash. 203 # If something must be added, add it to cmd/dist's cmdbootstrap, 204 # to avoid needing three copies in three different shell languages 205 # (make.bash, make.bat, make.rc).