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https://github.com/golang/go
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9f2a71b6e7
Alpine Linux is not the only musl-based Linux distribution. Checking for
/etc/alpine-release excludes many other distributions (Oasis, KISS,
Sabotage, sta.li). Not having the correct GO_LDSO set during go builds will
result in the wrong linker/loader on nonalpine musl systems for pie builds.
Instead, the dynamic loader should be checked for every system and set. This
results in the correct dynamic linker being found on glibc systems
(/lib/ld-linux-x86-64.so.2) and musl systems (/lib/ld-musl-x84_64.so.1).
Fixes #45034
Change-Id: I4c9389abc759aa34431dc6c781022636b81d6910
GitHub-Last-Rev: e17b9eb106
GitHub-Pull-Request: golang/go#45036
Reviewed-on: https://go-review.googlesource.com/c/go/+/301989
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Cherry Zhang <cherryyz@google.com>
222 lines
7.0 KiB
Bash
Executable File
222 lines
7.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2009 The Go Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style
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# license that can be found in the LICENSE file.
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# See golang.org/s/go15bootstrap for an overview of the build process.
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# Environment variables that control make.bash:
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#
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# GOROOT_FINAL: The expected final Go root, baked into binaries.
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# The default is the location of the Go tree during the build.
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#
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# GOHOSTARCH: The architecture for host tools (compilers and
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# binaries). Binaries of this type must be executable on the current
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# system, so the only common reason to set this is to set
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# GOHOSTARCH=386 on an amd64 machine.
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#
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# GOARCH: The target architecture for installed packages and tools.
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#
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# GOOS: The target operating system for installed packages and tools.
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#
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# GO_GCFLAGS: Additional go tool compile arguments to use when
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# building the packages and commands.
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#
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# GO_LDFLAGS: Additional go tool link arguments to use when
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# building the commands.
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#
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# CGO_ENABLED: Controls cgo usage during the build. Set it to 1
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# to include all cgo related files, .c and .go file with "cgo"
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# build directive, in the build. Set it to 0 to ignore them.
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#
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# GO_EXTLINK_ENABLED: Set to 1 to invoke the host linker when building
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# packages that use cgo. Set to 0 to do all linking internally. This
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# controls the default behavior of the linker's -linkmode option. The
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# default value depends on the system.
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#
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# GO_LDSO: Sets the default dynamic linker/loader (ld.so) to be used
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# by the internal linker.
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#
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# CC: Command line to run to compile C code for GOHOSTARCH.
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# Default is "gcc". Also supported: "clang".
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#
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# CC_FOR_TARGET: Command line to run to compile C code for GOARCH.
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# This is used by cgo. Default is CC.
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#
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# CXX_FOR_TARGET: Command line to run to compile C++ code for GOARCH.
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# This is used by cgo. Default is CXX, or, if that is not set,
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# "g++" or "clang++".
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#
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# FC: Command line to run to compile Fortran code for GOARCH.
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# This is used by cgo. Default is "gfortran".
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#
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# PKG_CONFIG: Path to pkg-config tool. Default is "pkg-config".
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#
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# GO_DISTFLAGS: extra flags to provide to "dist bootstrap".
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# (Or just pass them to the make.bash command line.)
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#
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# GOBUILDTIMELOGFILE: If set, make.bash and all.bash write
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# timing information to this file. Useful for profiling where the
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# time goes when these scripts run.
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#
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# GOROOT_BOOTSTRAP: A working Go tree >= Go 1.4 for bootstrap.
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# If $GOROOT_BOOTSTRAP/bin/go is missing, $(go env GOROOT) is
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# tried for all "go" in $PATH. $HOME/go1.4 by default.
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set -e
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export GOENV=off
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unset GOBIN # Issue 14340
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unset GOFLAGS
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unset GO111MODULE
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if [ ! -f run.bash ]; then
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echo 'make.bash must be run from $GOROOT/src' 1>&2
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exit 1
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fi
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if [ "$GOBUILDTIMELOGFILE" != "" ]; then
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echo $(LC_TIME=C date) start make.bash >"$GOBUILDTIMELOGFILE"
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fi
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# Test for Windows.
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case "$(uname)" in
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*MINGW* | *WIN32* | *CYGWIN*)
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echo 'ERROR: Do not use make.bash to build on Windows.'
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echo 'Use make.bat instead.'
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echo
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exit 1
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;;
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esac
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# Test for bad ld.
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if ld --version 2>&1 | grep 'gold.* 2\.20' >/dev/null; then
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echo 'ERROR: Your system has gold 2.20 installed.'
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echo 'This version is shipped by Ubuntu even though'
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echo 'it is known not to work on Ubuntu.'
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echo 'Binaries built with this linker are likely to fail in mysterious ways.'
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echo
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echo 'Run sudo apt-get remove binutils-gold.'
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echo
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exit 1
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fi
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# Test for bad SELinux.
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# On Fedora 16 the selinux filesystem is mounted at /sys/fs/selinux,
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# so loop through the possible selinux mount points.
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for se_mount in /selinux /sys/fs/selinux
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do
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if [ -d $se_mount -a -f $se_mount/booleans/allow_execstack -a -x /usr/sbin/selinuxenabled ] && /usr/sbin/selinuxenabled; then
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if ! cat $se_mount/booleans/allow_execstack | grep -c '^1 1$' >> /dev/null ; then
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echo "WARNING: the default SELinux policy on, at least, Fedora 12 breaks "
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echo "Go. You can enable the features that Go needs via the following "
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echo "command (as root):"
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echo " # setsebool -P allow_execstack 1"
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echo
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echo "Note that this affects your system globally! "
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echo
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echo "The build will continue in five seconds in case we "
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echo "misdiagnosed the issue..."
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sleep 5
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fi
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fi
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done
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# Test for debian/kFreeBSD.
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# cmd/dist will detect kFreeBSD as freebsd/$GOARCH, but we need to
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# disable cgo manually.
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if [ "$(uname -s)" = "GNU/kFreeBSD" ]; then
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export CGO_ENABLED=0
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fi
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# Test which linker/loader our system is using
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if type readelf >/dev/null 2>&1; then
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echo "int main() { return 0; }" | ${CC:-cc} -o ./test-musl-ldso -x c - || continue
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LDSO=$(readelf -l ./test-musl-ldso | grep 'interpreter:' | sed -e 's/^.*interpreter: \(.*\)[]]/\1/') >/dev/null 2>&1
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[ -z "$LDSO" ] || export GO_LDSO="$LDSO"
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rm -f ./test-musl-ldso
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fi
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# Clean old generated file that will cause problems in the build.
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rm -f ./runtime/runtime_defs.go
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# Finally! Run the build.
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verbose=false
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vflag=""
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if [ "$1" = "-v" ]; then
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verbose=true
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vflag=-v
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shift
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fi
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export GOROOT_BOOTSTRAP=${GOROOT_BOOTSTRAP:-$HOME/go1.4}
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export GOROOT="$(cd .. && pwd)"
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IFS=$'\n'; for go_exe in $(type -ap go); do
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if [ ! -x "$GOROOT_BOOTSTRAP/bin/go" ]; then
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goroot=$(GOROOT='' GOOS='' GOARCH='' "$go_exe" env GOROOT)
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if [ "$goroot" != "$GOROOT" ]; then
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GOROOT_BOOTSTRAP=$goroot
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fi
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fi
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done; unset IFS
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if [ ! -x "$GOROOT_BOOTSTRAP/bin/go" ]; then
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echo "ERROR: Cannot find $GOROOT_BOOTSTRAP/bin/go." >&2
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echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4." >&2
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exit 1
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fi
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# Get the exact bootstrap toolchain version to help with debugging.
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# We clear GOOS and GOARCH to avoid an ominous but harmless warning if
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# the bootstrap doesn't support them.
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GOROOT_BOOTSTRAP_VERSION=$(GOOS= GOARCH= $GOROOT_BOOTSTRAP/bin/go version | sed 's/go version //')
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echo "Building Go cmd/dist using $GOROOT_BOOTSTRAP. ($GOROOT_BOOTSTRAP_VERSION)"
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if $verbose; then
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echo cmd/dist
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fi
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if [ "$GOROOT_BOOTSTRAP" = "$GOROOT" ]; then
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echo "ERROR: \$GOROOT_BOOTSTRAP must not be set to \$GOROOT" >&2
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echo "Set \$GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4." >&2
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exit 1
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fi
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rm -f cmd/dist/dist
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GOROOT="$GOROOT_BOOTSTRAP" GOOS="" GOARCH="" GO111MODULE=off "$GOROOT_BOOTSTRAP/bin/go" build -o cmd/dist/dist ./cmd/dist
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# -e doesn't propagate out of eval, so check success by hand.
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eval $(./cmd/dist/dist env -p || echo FAIL=true)
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if [ "$FAIL" = true ]; then
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exit 1
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fi
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if $verbose; then
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echo
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fi
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if [ "$1" = "--dist-tool" ]; then
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# Stop after building dist tool.
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mkdir -p "$GOTOOLDIR"
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if [ "$2" != "" ]; then
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cp cmd/dist/dist "$2"
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fi
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mv cmd/dist/dist "$GOTOOLDIR"/dist
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exit 0
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fi
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buildall="-a"
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if [ "$1" = "--no-clean" ]; then
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buildall=""
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shift
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fi
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# Run dist bootstrap to complete make.bash.
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# Bootstrap installs a proper cmd/dist, built with the new toolchain.
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# Throw ours, built with Go 1.4, away after bootstrap.
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./cmd/dist/dist bootstrap $buildall $vflag $GO_DISTFLAGS "$@"
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rm -f ./cmd/dist/dist
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# DO NOT ADD ANY NEW CODE HERE.
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# The bootstrap+rm above are the final step of make.bash.
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# If something must be added, add it to cmd/dist's cmdbootstrap,
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# to avoid needing three copies in three different shell languages
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# (make.bash, make.bat, make.rc).
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