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.
6 # See golang.org/s/go15bootstrap for an overview of the build process.
8 # Environment variables that control make.bash:
10 # GOROOT_FINAL: The expected final Go root, baked into binaries.
11 # The default is the location of the Go tree during the build.
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.
18 # GOARCH: The target architecture for installed packages and tools.
20 # GOOS: The target operating system for installed packages and tools.
22 # GO_GCFLAGS: Additional go tool compile arguments to use when
23 # building the packages and commands.
25 # GO_LDFLAGS: Additional go tool link arguments to use when
26 # building the commands.
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.
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.
37 # CC: Command line to run to compile C code for GOHOSTARCH.
38 # Default is "gcc". Also supported: "clang".
40 # CC_FOR_TARGET: Command line to run to compile C code for GOARCH.
41 # This is used by cgo. Default is CC.
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,
47 # FC: Command line to run to compile Fortran code for GOARCH.
48 # This is used by cgo. Default is "gfortran".
50 # PKG_CONFIG: Path to pkg-config tool. Default is "pkg-config".
52 # GO_DISTFLAGS: extra flags to provide to "dist bootstrap".
53 # (Or just pass them to the make.bash command line.)
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.
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.
65 unset GOBIN # Issue 14340
67 if [ ! -f run.bash ]; then
68 echo 'make.bash must be run from $GOROOT/src' 1>&2
72 if [ "$GOBUILDTIMELOGFILE" != "" ]; then
73 echo $(date) start make.bash >"$GOBUILDTIMELOGFILE"
78 *MINGW* | *WIN32* | *CYGWIN*)
79 echo 'ERROR: Do not use make.bash to build on Windows.'
80 echo 'Use make.bat instead.'
87 if ld --version 2>&1 | grep 'gold.* 2\.20' >/dev/null; then
88 echo 'ERROR: Your system has gold 2.20 installed.'
89 echo 'This version is shipped by Ubuntu even though'
90 echo 'it is known not to work on Ubuntu.'
91 echo 'Binaries built with this linker are likely to fail in mysterious ways.'
93 echo 'Run sudo apt-get remove binutils-gold.'
98 # Test for bad SELinux.
99 # On Fedora 16 the selinux filesystem is mounted at /sys/fs/selinux,
100 # so loop through the possible selinux mount points.
101 for se_mount in /selinux /sys/fs/selinux
103 if [ -d $se_mount -a -f $se_mount/booleans/allow_execstack -a -x /usr/sbin/selinuxenabled ] && /usr/sbin/selinuxenabled; then
104 if ! cat $se_mount/booleans/allow_execstack | grep -c '^1 1$' >> /dev/null ; then
105 echo "WARNING: the default SELinux policy on, at least, Fedora 12 breaks "
106 echo "Go. You can enable the features that Go needs via the following "
107 echo "command (as root):"
108 echo " # setsebool -P allow_execstack 1"
110 echo "Note that this affects your system globally! "
112 echo "The build will continue in five seconds in case we "
113 echo "misdiagnosed the issue..."
120 # Test for debian/kFreeBSD.
121 # cmd/dist will detect kFreeBSD as freebsd/$GOARCH, but we need to
122 # disable cgo manually.
123 if [ "$(uname -s)" = "GNU/kFreeBSD" ]; then
127 # Clean old generated file that will cause problems in the build.
128 rm -f ./runtime/runtime_defs.go
130 # Finally! Run the build.
134 if [ "$1" = "-v" ]; then
140 export GOROOT_BOOTSTRAP=${GOROOT_BOOTSTRAP:-$HOME/go1.4}
141 export GOROOT="$(cd .. && pwd)"
142 IFS=$'\n'; for go_exe in $(type -ap go); do
143 if [ ! -x "$GOROOT_BOOTSTRAP/bin/go" ]; then
144 goroot=$(GOROOT='' "$go_exe" env GOROOT)
145 if [ "$goroot" != "$GOROOT" ]; then
146 GOROOT_BOOTSTRAP=$goroot
150 echo "Building Go cmd/dist using $GOROOT_BOOTSTRAP."
154 if [ ! -x "$GOROOT_BOOTSTRAP/bin/go" ]; then
155 echo "ERROR: Cannot find $GOROOT_BOOTSTRAP/bin/go." >&2
156 echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4." >&2
159 if [ "$GOROOT_BOOTSTRAP" = "$GOROOT" ]; then
160 echo "ERROR: \$GOROOT_BOOTSTRAP must not be set to \$GOROOT" >&2
161 echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4." >&2
165 GOROOT="$GOROOT_BOOTSTRAP" GOOS="" GOARCH="" "$GOROOT_BOOTSTRAP/bin/go" build -o cmd/dist/dist ./cmd/dist
167 # -e doesn't propagate out of eval, so check success by hand.
168 eval $(./cmd/dist/dist env -p || echo FAIL=true)
169 if [ "$FAIL" = true ]; then
177 if [ "$1" = "--dist-tool" ]; then
178 # Stop after building dist tool.
179 mkdir -p "$GOTOOLDIR"
180 if [ "$2" != "" ]; then
181 cp cmd/dist/dist "$2"
183 mv cmd/dist/dist "$GOTOOLDIR"/dist
188 if [ "$1" = "--no-clean" ]; then
193 # Run dist bootstrap to complete make.bash.
194 # Bootstrap installs a proper cmd/dist, built with the new toolchain.
195 # Throw ours, built with Go 1.4, away after bootstrap.
196 ./cmd/dist/dist bootstrap $buildall $vflag $GO_DISTFLAGS "$@"
197 rm -f ./cmd/dist/dist
199 # DO NOT ADD ANY NEW CODE HERE.
200 # The bootstrap+rm above are the final step of make.bash.
201 # If something must be added, add it to cmd/dist's cmdbootstrap,
202 # to avoid needing three copies in three different shell languages
203 # (make.bash, make.bat, make.rc).