github.com/golang-haiku/go-1.4.3@v0.0.0-20190609233734-1f5ae41cc308/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 # Environment variables that control make.bash: 7 # 8 # GOROOT_FINAL: The expected final Go root, baked into binaries. 9 # The default is the location of the Go tree during the build. 10 # 11 # GOHOSTARCH: The architecture for host tools (compilers and 12 # binaries). Binaries of this type must be executable on the current 13 # system, so the only common reason to set this is to set 14 # GOHOSTARCH=386 on an amd64 machine. 15 # 16 # GOARCH: The target architecture for installed packages and tools. 17 # 18 # GOOS: The target operating system for installed packages and tools. 19 # 20 # GO_GCFLAGS: Additional 5g/6g/8g arguments to use when 21 # building the packages and commands. 22 # 23 # GO_LDFLAGS: Additional 5l/6l/8l arguments to use when 24 # building the commands. 25 # 26 # GO_CCFLAGS: Additional 5c/6c/8c arguments to use when 27 # building. 28 # 29 # CGO_ENABLED: Controls cgo usage during the build. Set it to 1 30 # to include all cgo related files, .c and .go file with "cgo" 31 # build directive, in the build. Set it to 0 to ignore them. 32 # The default for this release is 0. 33 # 34 # GO_EXTLINK_ENABLED: Set to 1 to invoke the host linker when building 35 # packages that use cgo. Set to 0 to do all linking internally. This 36 # controls the default behavior of the linker's -linkmode option. The 37 # default value depends on the system. 38 # 39 # CC: Command line to run to compile C code for GOHOSTARCH. 40 # Default is "gcc". Also supported: "clang". 41 # 42 # CC_FOR_TARGET: Command line to run to compile C code for GOARCH. 43 # This is used by cgo. Default is CC. 44 # 45 # CXX_FOR_TARGET: Command line to run to compile C++ code for GOARCH. 46 # This is used by cgo. Default is CXX, or, if that is not set, 47 # "g++" or "clang++". 48 # 49 # GO_DISTFLAGS: extra flags to provide to "dist bootstrap". Use "-s" 50 # to build a statically linked toolchain. 51 52 set -e 53 if [ ! -f run.bash ]; then 54 echo 'make.bash must be run from $GOROOT/src' 1>&2 55 exit 1 56 fi 57 58 # Test for Windows. 59 case "$(uname)" in 60 *MINGW* | *WIN32* | *CYGWIN*) 61 echo 'ERROR: Do not use make.bash to build on Windows.' 62 echo 'Use make.bat instead.' 63 echo 64 exit 1 65 ;; 66 esac 67 68 # Test for bad ld. 69 if ld --version 2>&1 | grep 'gold.* 2\.20' >/dev/null; then 70 echo 'ERROR: Your system has gold 2.20 installed.' 71 echo 'This version is shipped by Ubuntu even though' 72 echo 'it is known not to work on Ubuntu.' 73 echo 'Binaries built with this linker are likely to fail in mysterious ways.' 74 echo 75 echo 'Run sudo apt-get remove binutils-gold.' 76 echo 77 exit 1 78 fi 79 80 # Test for bad SELinux. 81 # On Fedora 16 the selinux filesystem is mounted at /sys/fs/selinux, 82 # so loop through the possible selinux mount points. 83 for se_mount in /selinux /sys/fs/selinux 84 do 85 if [ -d $se_mount -a -f $se_mount/booleans/allow_execstack -a -x /usr/sbin/selinuxenabled ] && /usr/sbin/selinuxenabled; then 86 if ! cat $se_mount/booleans/allow_execstack | grep -c '^1 1$' >> /dev/null ; then 87 echo "WARNING: the default SELinux policy on, at least, Fedora 12 breaks " 88 echo "Go. You can enable the features that Go needs via the following " 89 echo "command (as root):" 90 echo " # setsebool -P allow_execstack 1" 91 echo 92 echo "Note that this affects your system globally! " 93 echo 94 echo "The build will continue in five seconds in case we " 95 echo "misdiagnosed the issue..." 96 97 sleep 5 98 fi 99 fi 100 done 101 102 # Test for debian/kFreeBSD. 103 # cmd/dist will detect kFreeBSD as freebsd/$GOARCH, but we need to 104 # disable cgo manually. 105 if [ "$(uname -s)" == "GNU/kFreeBSD" ]; then 106 export CGO_ENABLED=0 107 fi 108 109 # Clean old generated file that will cause problems in the build. 110 rm -f ./runtime/runtime_defs.go 111 112 # Finally! Run the build. 113 114 echo '# Building C bootstrap tool.' 115 echo cmd/dist 116 export GOROOT="$(cd .. && pwd)" 117 GOROOT_FINAL="${GOROOT_FINAL:-$GOROOT}" 118 DEFGOROOT='-DGOROOT_FINAL="'"$GOROOT_FINAL"'"' 119 120 mflag="" 121 case "$GOHOSTARCH" in 122 386) mflag=-m32;; 123 amd64) mflag=-m64;; 124 esac 125 if [ "$(uname)" == "Darwin" ]; then 126 # golang.org/issue/5261 127 mflag="$mflag -mmacosx-version-min=10.6" 128 fi 129 # if gcc does not exist and $CC is not set, try clang if available. 130 if [ -z "$CC" -a -z "$(type -t gcc)" -a -n "$(type -t clang)" ]; then 131 export CC=clang CXX=clang++ 132 fi 133 ${CC:-gcc} $mflag -O2 -Wall -Werror -o cmd/dist/dist -Icmd/dist "$DEFGOROOT" cmd/dist/*.c 134 135 # -e doesn't propagate out of eval, so check success by hand. 136 eval $(./cmd/dist/dist env -p || echo FAIL=true) 137 if [ "$FAIL" = true ]; then 138 exit 1 139 fi 140 141 echo 142 143 if [ "$1" = "--dist-tool" ]; then 144 # Stop after building dist tool. 145 mkdir -p "$GOTOOLDIR" 146 if [ "$2" != "" ]; then 147 cp cmd/dist/dist "$2" 148 fi 149 mv cmd/dist/dist "$GOTOOLDIR"/dist 150 exit 0 151 fi 152 153 echo "# Building compilers and Go bootstrap tool for host, $GOHOSTOS/$GOHOSTARCH." 154 buildall="-a" 155 if [ "$1" = "--no-clean" ]; then 156 buildall="" 157 shift 158 fi 159 ./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap 160 # Delay move of dist tool to now, because bootstrap may clear tool directory. 161 mv cmd/dist/dist "$GOTOOLDIR"/dist 162 "$GOTOOLDIR"/go_bootstrap clean -i std 163 echo 164 165 if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOHOSTOS" != "$GOOS" ]; then 166 echo "# Building packages and commands for host, $GOHOSTOS/$GOHOSTARCH." 167 # CC_FOR_TARGET is recorded as the default compiler for the go tool. When building for the host, however, 168 # use the host compiler, CC, from `cmd/dist/dist env` instead. 169 CC=$CC GOOS=$GOHOSTOS GOARCH=$GOHOSTARCH \ 170 "$GOTOOLDIR"/go_bootstrap install -ccflags "$GO_CCFLAGS" -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std 171 echo 172 fi 173 174 echo "# Building packages and commands for $GOOS/$GOARCH." 175 CC=$CC_FOR_TARGET "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -ccflags "$GO_CCFLAGS" -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std 176 echo 177 178 rm -f "$GOTOOLDIR"/go_bootstrap 179 180 if [ "$1" != "--no-banner" ]; then 181 "$GOTOOLDIR"/dist banner 182 fi