按照How to successfully build packages for WD My Cloud from source中的介绍，搭建完成WDMyCloud的编译环境
整个 `WD MyCloud` 的编译项目，可以直接在树莓派中进行编译。只是编译`4KB`分页（主要用于编译过程）的高版本应用的时候，需要在 `raspbian-wheezy` 系统中进行编译。
在树莓派中编译 `WD MyCloud` 代码的时候，由于都是 `ARM` 环境，因此，不需要 `QEMU` 的介入，以前由于 `QEMU` 导致的问题可以规避。
推荐在树莓派4B版本上搭建编译环境，效果来看，速度还是不错的。
root@debian:~/git-lfs# DEB_BUILD_OPTIONS="nocheck" dpkg-buildpackage -d -b -uc
dpkg-buildpackage: source package git-lfs
dpkg-buildpackage: source version 2.9.0
dpkg-buildpackage: source changed by brian m. carlson <bk2204@github.com>
dpkg-buildpackage: host architecture armhf
dpkg-source --before-build git-lfs
debian/rules clean
mkdir -p /tmp/gocache
GO111MODULE=on GOFLAGS=-mod=vendor GOCACHE=/tmp/gocache dh clean --buildsystem=golang --with=golang
dh_testdir -O--buildsystem=golang
dh_auto_clean -O--buildsystem=golang
debian/rules override_dh_clean
make[1]: Entering directory `/root/git-lfs'
rm -f debian/debhelper.log
rm -rf man
dh_clean
make[1]: Leaving directory `/root/git-lfs'
debian/rules build
mkdir -p /tmp/gocache
GO111MODULE=on GOFLAGS=-mod=vendor GOCACHE=/tmp/gocache dh build --buildsystem=golang --with=golang
dh_testdir -O--buildsystem=golang
dh_auto_configure -O--buildsystem=golang
debian/rules override_dh_auto_build
make[1]: Entering directory `/root/git-lfs'
dh_auto_build
runtime: failed to create new OS thread (have 2 already; errno=22)
throw: runtime.newosproc
goroutine 1 [syscall]:
syscall.Syscall6()
/build/buildd-golang_1.0.2-1.1-armhf-ygST23/golang-1.0.2/src/pkg/syscall/asm_linux_arm.s:42 +0x8
syscall.setsockopt(0x3, 0x29, 0x1a, 0x10960248, 0x4, ...)
/usr/lib/go/src/pkg/syscall/zsyscall_linux_arm.go:1101 +0x68
syscall.SetsockoptInt(0x3, 0x29, 0x1a, 0x0, 0x0, ...)
/usr/lib/go/src/pkg/syscall/syscall_linux.go:478 +0x6c
net.probeIPv6Stack(0xff0000, 0x10960240)
/usr/lib/go/src/pkg/net/ipsock_posix.go:41 +0x2a0
net.init()
/usr/lib/go/src/pkg/net/unixsock_posix.go:-2932 +0x7d4
net/http.init()
/usr/lib/go/src/pkg/net/http/transport.go:753 +0x84
main.init()
/usr/lib/go/src/cmd/go/vet.go:37 +0xa8
goroutine 2 [runnable]:
created by runtime.main
/build/buildd-golang_1.0.2-1.1-armhf-ygST23/golang-1.0.2/src/pkg/runtime/proc.c:221
runtime: failed to create new OS thread (have 2 already; errno=22)
throw: runtime.newosproc
goroutine 1 [syscall]:
syscall.Syscall6()
/build/buildd-golang_1.0.2-1.1-armhf-ygST23/golang-1.0.2/src/pkg/syscall/asm_linux_arm.s:42 +0x8
syscall.setsockopt(0x3, 0x29, 0x1a, 0x10960248, 0x4, ...)
/usr/lib/go/src/pkg/syscall/zsyscall_linux_arm.go:1101 +0x68
syscall.SetsockoptInt(0x3, 0x29, 0x1a, 0x0, 0x0, ...)
/usr/lib/go/src/pkg/syscall/syscall_linux.go:478 +0x6c
net.probeIPv6Stack(0xff0000, 0x10960240)
/usr/lib/go/src/pkg/net/ipsock_posix.go:41 +0x2a0
net.init()
/usr/lib/go/src/pkg/net/unixsock_posix.go:-2932 +0x7d4
net/http.init()
/usr/lib/go/src/pkg/net/http/transport.go:753 +0x84
main.init()
/usr/lib/go/src/cmd/go/vet.go:37 +0xa8
goroutine 2 [runnable]:
created by runtime.main
/build/buildd-golang_1.0.2-1.1-armhf-ygST23/golang-1.0.2/src/pkg/runtime/proc.c:221
dh_auto_build: go install -v returned exit code 2
make[1]: *** [override_dh_auto_build] Error 2
make[1]: Leaving directory `/root/git-lfs'
make: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
这个问题产生的原因是在`qemu`中创建线程/进程的时候，要求增加`CLONE_SYSVSEM`标志，否则会出现异常。 `go`在创建线程/进程的时候，没有指定这个标记。解决方法就是修改`src/pkg/runtime/os_linux.c`中的`void runtime·newosproc(M *mp, void *stk)`函数，在`flag`中增加`CLONE_SYSVSEM`标志。
这个问题解决起来比较复杂，我们在`x86`下面直接进行交叉编译的时候，是没办法通过编译的，我们可以通过树莓派下进行编译。树莓派使用`2015-05-05-raspbian-wheezy`版本的镜像来进行编译。
树莓派这个版本的系统问题在于 `wheezy` 的源已经被移动地址，因此更新安装软件的时候会报告 `404` 错误，我们需要手工修改一下源地址。
$ sed -i "s/wheezy/oldoldstable/g" /etc/apt/source.list
安装编译依赖
$ sudo apt-get update
$ sudo apt-get install vim
$ sudo apt-get install devscripts
下载并编译代码
$ wget http://security.debian.org/debian-security/pool/updates/main/g/golang/golang_1.3.3.orig.tar.gz
# 也可本站下载 wget http://www.mobibrw.com/wp-content/uploads/2019/11/golang_1.3.3.orig_.tar.gz -O golang_1.3.3.orig.tar.gz
$ mkdir golang_1.3.3
$ tar xvf golang_1.3.3.orig.tar.gz -C golang_1.3.3
$ cd golang_1.3.3/go
$ wget http://security.debian.org/debian-security/pool/updates/main/g/golang/golang_1.3.3-1+deb8u2.debian.tar.xz
# 也可本站下载 wget http://www.mobibrw.com/wp-content/uploads/2019/11/golang_1.3.3-1deb8u2.debian.tar.xz
$ tar xvf golang_1.3.3-1*.debian.tar.xz
# BUG `runtime: failed to create new OS thread (have 2 already; errno=22)`
$ sed -i "s/| CLONE_THREAD/| CLONE_THREAD | CLONE_SYSVSEM/g" src/pkg/runtime/os_linux.c
$ export GOARCH=arm
$ export GOOS=linux
$ DEB_BUILD_OPTIONS="nocheck" dpkg-buildpackage -d -b -uc
完成之后,拷贝到编译环境中并执行安装
$ dpkg -i golang-src_1.3.3-1*_armhf.deb
$ dpkg -i golang-go-linux-arm_1.3.3-1*_armhf.deb
$ dpkg -i golang-go_1.3.3-1*_armhf.deb
$ dpkg -i golang-doc_1.3.3-1*_all.deb
继续编译，报告如下错误信息：
root@debian:~/git-lfs# DEB_BUILD_OPTIONS="nocheck" dpkg-buildpackage -d -b -uc
dpkg-buildpackage: source package git-lfs
dpkg-buildpackage: source version 2.9.0
dpkg-buildpackage: source changed by brian m. carlson <bk2204@github.com>
dpkg-buildpackage: host architecture armhf
dpkg-source --before-build git-lfs
debian/rules clean
mkdir -p /tmp/gocache
GO111MODULE=on GOFLAGS=-mod=vendor GOCACHE=/tmp/gocache dh clean --buildsystem=golang --with=golang
dh_testdir -O--buildsystem=golang
dh_auto_clean -O--buildsystem=golang
debian/rules override_dh_clean
make[1]: Entering directory `/root/git-lfs'
rm -f debian/debhelper.log
rm -rf man
dh_clean
make[1]: Leaving directory `/root/git-lfs'
debian/rules build
mkdir -p /tmp/gocache
GO111MODULE=on GOFLAGS=-mod=vendor GOCACHE=/tmp/gocache dh build --buildsystem=golang --with=golang
dh_testdir -O--buildsystem=golang
dh_auto_configure -O--buildsystem=golang
debian/rules override_dh_auto_build
make[1]: Entering directory `/root/git-lfs'
dh_auto_build
fatal error: rt_sigaction failure
runtime stack:
runtime.throw(0x51f24d)
/usr/lib/go/src/pkg/runtime/panic.c:520 +0x5c
runtime.setsig(0x40, 0x7d5ec, 0x523901)
/usr/lib/go/src/pkg/runtime/os_linux.c:309 +0xbc
runtime.initsig()
/usr/lib/go/src/pkg/runtime/signal_unix.c:39 +0x94
runtime.mstart()
/usr/lib/go/src/pkg/runtime/proc.c:621 +0x80
goroutine 16 [runnable]:
runtime.main()
/usr/lib/go/src/pkg/runtime/proc.c:207
runtime.goexit()
/usr/lib/go/src/pkg/runtime/proc.c:1445
fatal error: rt_sigaction failure
runtime stack:
runtime.throw(0x51f24d)
/usr/lib/go/src/pkg/runtime/panic.c:520 +0x5c
runtime.setsig(0x40, 0x7d5ec, 0x523901)
/usr/lib/go/src/pkg/runtime/os_linux.c:309 +0xbc
runtime.initsig()
/usr/lib/go/src/pkg/runtime/signal_unix.c:39 +0x94
runtime.mstart()
/usr/lib/go/src/pkg/runtime/proc.c:621 +0x80
goroutine 16 [runnable]:
runtime.main()
/usr/lib/go/src/pkg/runtime/proc.c:207
runtime.goexit()
/usr/lib/go/src/pkg/runtime/proc.c:1445
dh_auto_build: go install -v returned exit code 2
make[1]: *** [override_dh_auto_build] Error 2
make[1]: Leaving directory `/root/git-lfs'
make: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
这个问题产生的原因是在`qemu`中无法处理编号为 64 的信号(`Qemu rejects rt_sigaction of SIGRTMAX (64).`)，我们需要忽略这个信号。解决方法就是修改`src/pkg/runtime/os_linux.c`中的`void
runtime·setsig(int32 i, GoSighandler *fn, bool restart)`函数，忽略这个信号。
# BUG `fatal error: rt_sigaction failure`
$ sed -i "s/runtime·rt_sigaction(i, \&sa, nil, sizeof(sa.sa_mask)) != 0/runtime·rt_sigaction(i, \&sa, nil, sizeof(sa.sa_mask)) != 0 \&\& i != 64/g" src/pkg/runtime/os_linux.c
$ export GOARCH=arm
$ export GOOS=linux
$ DEB_BUILD_OPTIONS="nocheck" dpkg-buildpackage -d -b -uc
完成之后,拷贝到编译环境中并执行安装
$ dpkg -i golang-src_1.3.3-1*_armhf.deb
$ dpkg -i golang-doc_1.3.3-1*_all.deb
$ dpkg -i golang-go-linux-arm_1.3.3-1*_armhf.deb
$ dpkg -i golang-go_1.3.3-1*_armhf.deb
编译环境安装完成之后，可以成功编译`golang-1.3.3`，中途可能会失败，失败之后，重新编译可以通过。
编译 `golang-1.4` ,由于 `golang-1.4` 的特殊性，任何高于 `golang-1.4` 版本的 `golang` ，都需要 `golang-1.4` 的编译环境才能开始编译安装！
我们依旧需要在树莓派环境中 `raspbian-wheezy` && `WD MyCloud` 编译，如下：
$ git clone https://salsa.debian.org/go-team/compiler/golang.git -b debian/2%1.4.3-3
# 也可下载一份拷贝 wget https://salsa.debian.org/go-team/compiler/golang/-/archive/debian/2%251.4.3-3/golang-debian-2%251.4.3-3.tar.gz
# 也可本站下载一份代码拷贝 wget http://www.mobibrw.com/wp-content/uploads/2019/11/golang-debian-21.4.3-3.tar.gz -O golang-debian-2%251.4.3-3.tar.gz
# tar xvf golang-debian-2%1.4.3-3.tar.gz
# mv golang-debian-2%1.4.3-3 golang
$ cd golang
# BUG `fatal error: rt_sigaction failure`
$ sed -i "s/runtime·rt_sigaction(i, \&sa, nil, sizeof(sa.sa_mask)) != 0/runtime·rt_sigaction(i, \&sa, nil, sizeof(sa.sa_mask)) != 0 \&\& i != 64/g" src/runtime/os_linux.c
# BUG `runtime: failed to create new OS thread (have 2 already; errno=22)`
$ sed -i "s/| CLONE_THREAD/| CLONE_THREAD | CLONE_SYSVSEM/g" src/runtime/os_linux.c
# 如果使用 go 1.4.3 编译 go 1.4.3 可能会报告如下三个错误，如果使用 go 1.3.3 编译 go 1.4.3不会出现错误
#--- FAIL: TestParseInLocation (0.02s)
# format_test.go:202: ParseInLocation(Feb 01 2013 AST, Baghdad) = 2013-02-01 00:00:00 +0000 AST, want 2013-02-01 00:00:00 +0300 +03
#--- FAIL: TestLoadFixed (0.00s)
# time_test.go:929: Now().In(loc).Zone() = "-01", -3600, want "GMT+1", -36
$ rm -rf src/time/format_test.go
# time_test.go:929: Now().In(loc).Zone() = "-01", -3600, want "GMT+1", -36
$ rm -rf src/time/time_test.go
# file_test.go:121: WriteTo failed: write ip: bad address
$ rm -rf src/net/file_test.go
$ export GOARCH=arm
$ export GOOS=linux
$ DEB_BUILD_OPTIONS="nocheck" dpkg-buildpackage -d -b -uc
完成之后,拷贝到编译环境中并执行安装
$ dpkg -i golang-src_1.4.3-3_armhf.deb
$ dpkg -i golang-go_1.4.3-3_armhf.deb
$ dpkg -i golang-doc_1.4.3-3_all.deb
$ dpkg -i golang-go-linux-arm_1.4.3-3_armhf.deb
$ dpkg -i golang_1.4.3-3_all.deb
我们需要在 `golang 1.4.3` 环境中继续编译,可以在 `golang 1.3.3` 中运行：
$ cd ~/wdmc-build/64k-wheezy
$ sudo chroot build
$ mount -t proc none /proc
$ mount -t devtmpfs none /dev
$ mount -t devpts none /dev/pts
$ export DEBIAN_FRONTEND=noninteractive
$ export DEBCONF_NONINTERACTIVE_SEEN=true
$ export LC_ALL=C
$ export LANGUAGE=C
$ export LANG=C
$ export DEB_CFLAGS_APPEND='-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE'
$ export DEB_BUILD_OPTIONS=nocheck
$ cd root
$ git clone https://github.com/git-lfs/git-lfs.git
# 或者本站下载一份拷贝 wget http://www.mobibrw.com/wp-content/uploads/2019/11/git-lfs.zip
$ git checkout v1.2.1
$ DEB_BUILD_OPTIONS="nocheck" dpkg-buildpackage -d -b -uc
可以本站下载：
golang_1.3.3-1deb8u2.dsc
golang_1.3.3-1+deb8u2.debian.tar.xz
golang_1.3.3.orig.tar.gz
修改完`BUG`之后编译好的 golang_1.3.3-1.deb(4KB分页)/golang_1.4.3-3.deb(4KB分页)用于编译环境使用，不能在`WD MyCloud`上使用。
参考链接