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
68 if [ ! -f run.bash ]; then
69 echo 'make.bash must be run from $GOROOT/src' 1>&2
73 if [ "$GOBUILDTIMELOGFILE" != "" ]; then
74 echo $(LC_TIME=C date) start make.bash >"$GOBUILDTIMELOGFILE"
79 *MINGW* | *WIN32* | *CYGWIN*)
80 echo 'ERROR: Do not use make.bash to build on Windows.'
81 echo 'Use make.bat instead.'
88 if ld --version 2>&1 | grep 'gold.* 2\.20' >/dev/null; then
89 echo 'ERROR: Your system has gold 2.20 installed.'
90 echo 'This version is shipped by Ubuntu even though'
91 echo 'it is known not to work on Ubuntu.'
92 echo 'Binaries built with this linker are likely to fail in mysterious ways.'
94 echo 'Run sudo apt-get remove binutils-gold.'
99 # Test for bad SELinux.
100 # On Fedora 16 the selinux filesystem is mounted at /sys/fs/selinux,
101 # so loop through the possible selinux mount points.
102 for se_mount in /selinux /sys/fs/selinux
104 if [ -d $se_mount -a -f $se_mount/booleans/allow_execstack -a -x /usr/sbin/selinuxenabled ] && /usr/sbin/selinuxenabled; then
105 if ! cat $se_mount/booleans/allow_execstack | grep -c '^1 1$' >> /dev/null ; then
106 echo "WARNING: the default SELinux policy on, at least, Fedora 12 breaks "
107 echo "Go. You can enable the features that Go needs via the following "
108 echo "command (as root):"
109 echo " # setsebool -P allow_execstack 1"
111 echo "Note that this affects your system globally! "
113 echo "The build will continue in five seconds in case we "
114 echo "misdiagnosed the issue..."
121 # Test for debian/kFreeBSD.
122 # cmd/dist will detect kFreeBSD as freebsd/$GOARCH, but we need to
123 # disable cgo manually.
124 if [ "$(uname -s)" = "GNU/kFreeBSD" ]; then
128 # Clean old generated file that will cause problems in the build.
129 rm -f ./runtime/runtime_defs.go
131 # Finally! Run the build.
135 if [ "$1" = "-v" ]; then
141 export GOROOT_BOOTSTRAP=${GOROOT_BOOTSTRAP:-$HOME/go1.4}
142 export GOROOT="$(cd .. && pwd)"
143 IFS=$'\n'; for go_exe in $(type -ap go); do
144 if [ ! -x "$GOROOT_BOOTSTRAP/bin/go" ]; then
145 goroot=$(GOROOT='' GOOS='' GOARCH='' "$go_exe" env GOROOT)
146 if [ "$goroot" != "$GOROOT" ]; then
147 GOROOT_BOOTSTRAP=$goroot
151 echo "Building Go cmd/dist using $GOROOT_BOOTSTRAP."
155 if [ ! -x "$GOROOT_BOOTSTRAP/bin/go" ]; then
156 echo "ERROR: Cannot find $GOROOT_BOOTSTRAP/bin/go." >&2
157 echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4." >&2
160 if [ "$GOROOT_BOOTSTRAP" = "$GOROOT" ]; then
161 echo "ERROR: \$GOROOT_BOOTSTRAP must not be set to \$GOROOT" >&2
162 echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4." >&2
166 GOROOT="$GOROOT_BOOTSTRAP" GOOS="" GOARCH="" "$GOROOT_BOOTSTRAP/bin/go" build -o cmd/dist/dist ./cmd/dist
168 # -e doesn't propagate out of eval, so check success by hand.
169 eval $(./cmd/dist/dist env -p || echo FAIL=true)
170 if [ "$FAIL" = true ]; then
178 if [ "$1" = "--dist-tool" ]; then
179 # Stop after building dist tool.
180 mkdir -p "$GOTOOLDIR"
181 if [ "$2" != "" ]; then
182 cp cmd/dist/dist "$2"
184 mv cmd/dist/dist "$GOTOOLDIR"/dist
189 if [ "$1" = "--no-clean" ]; then
194 # Run dist bootstrap to complete make.bash.
195 # Bootstrap installs a proper cmd/dist, built with the new toolchain.
196 # Throw ours, built with Go 1.4, away after bootstrap.
197 ./cmd/dist/dist bootstrap $buildall $vflag $GO_DISTFLAGS "$@"
198 rm -f ./cmd/dist/dist
200 # DO NOT ADD ANY NEW CODE HERE.
201 # The bootstrap+rm above are the final step of make.bash.
202 # If something must be added, add it to cmd/dist's cmdbootstrap,
203 # to avoid needing three copies in three different shell languages
204 # (make.bash, make.bat, make.rc).