1、交叉編譯工具鏈
????? 這里ARM平臺是ARM CortexA9的，一般交叉編譯工具鏈demo板廠商都會提供，若未提供或想更換新版本的交叉編譯工具鏈可參考以下方式獲取。
1.1 下載適用于ARM CortexA9的交叉編譯工具鏈
Linaro Releases下載gcc4的最新版xxxx-i686_arm-linux-gnueabihf.tar.xz
1.2 配置交叉編譯工具鏈
1.2.1 解壓下載好的工具鏈包
$ tar xvf gcc-linaro-4.9.4-2017.01-i686_arm-linux-gnueabihf.tar.xz1.2.2 部署并配置工具鏈
拷貝到系統路徑
$ sudo mv gcc-linaro-4.9.4-2017.01-i686_arm-linux-gnueabihf /usr/local/arm-linux-gnueabihf配置環境變量
$ vim ~/.bashrc在文件末加入環境變量
export PATH=/usr/local/arm-linux-gnueabihf/bin:$PATH使環境變量生效
$ source ~/.bashrc檢驗工具鏈是否正常使用
$ arm-linux-gnueabihf-gcc -v使用內建 specs。
COLLECT_GCC=arm-linux-gnueabihf-gcc
COLLECT_LTO_WRAPPER=/usr/local/arm-linux-gnueabihf/bin/../libexec/gcc/arm-linux-gnueabihf/4.9.4/lto-wrapper
目標：arm-linux-gnueabihf
配置為：/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-i386-tcwg-build/target/arm-linux-gnueabihf/snapshots/gcc-linaro-4.9-2017.01/configure SHELL=/bin/bash --with-mpc=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-i386-tcwg-build/target/arm-linux-gnueabihf/_build/builds/destdir/i686-pc-linux-gnu --with-mpfr=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-i386-tcwg-build/target/arm-linux-gnueabihf/_build/builds/destdir/i686-pc-linux-gnu --with-gmp=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-i386-tcwg-build/target/arm-linux-gnueabihf/_build/builds/destdir/i686-pc-linux-gnu --with-gnu-as --with-gnu-ld --disable-libmudflap --enable-lto --enable-objc-gc --enable-shared --without-included-gettext --enable-nls --disable-sjlj-exceptions --enable-gnu-unique-object --enable-linker-build-id --disable-libstdcxx-pch --enable-c99 --enable-clocale=gnu --enable-libstdcxx-debug --enable-long-long --with-cloog=no --with-ppl=no --with-isl=no --disable-multilib --with-float=hard --with-mode=thumb --with-tune=cortex-a9 --with-arch=armv7-a --with-fpu=vfpv3-d16 --enable-threads=posix --enable-multiarch --enable-libstdcxx-time=yes --with-build-sysroot=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-i386-tcwg-build/target/arm-linux-gnueabihf/_build/sysroots/arm-linux-gnueabihf --with-sysroot=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-i386-tcwg-build/target/arm-linux-gnueabihf/_build/builds/destdir/i686-pc-linux-gnu/arm-linux-gnueabihf/libc --enable-checking=release --disable-bootstrap --enable-languages=c,c++,fortran,lto --build=i686-pc-linux-gnu --host=i686-pc-linux-gnu --target=arm-linux-gnueabihf --prefix=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-i386-tcwg-build/target/arm-linux-gnueabihf/_build/builds/destdir/i686-pc-linux-gnu
線程模型：posix
gcc 版本 4.9.4 (Linaro GCC 4.9-2017.01)?2、SQLite交叉編譯
??? 在后面交叉編譯Qt源碼的時候會用到
2.1 SQLite源碼獲取
SQLite Download Page下載最新版sqlite-autoconf-xxxx.tar.gz SQLite源碼
2.2 交叉編碼
解壓源碼
$ tar -xvf sqlite-autoconf-3360000.tar.gz到源碼路徑
$ cd sqlite-autoconf-3360000/配置編譯
$ ./configure CC=arm-linux-gnueabihf-gcc --host=arm-linux --prefix=/opt/arm_sqlite構建
$ make安裝
$ sudo make install?3、OpenSSL交叉編譯
??? Qt使用SSL時需用到OpenSSL庫。
3.1 下載OpenSSL源碼
Releases · openssl/openssl · GitHub下載OpenSSL_1_x_x最新版的，因為Qt5.9只支持OpenSSL_1的環境，這里下載OpenSSL_1_1_1k?
3.2 交叉編譯
解壓
@ tar -xvf openssl-OpenSSL_1_1_1k.tar.gz進入到源碼路徑
@ cd openssl-OpenSSL_1_1_1k/配置為靜態編譯，注意這里的/home/xxx是當前用戶路徑，xxx代表當前用戶名
@ ./config -fPIC no-shared no-asm --prefix=/home/xxx/arm_openssl --cross-compile-prefix=arm-linux-gnueabihf-修改Makefile
@ vim Makefile搜索并將-m64刪除編譯
@ make -j4安裝
@ make install4、Qt交叉編譯
4.1 下載Qt5.9.9源碼
https://download.qt.io/archive/qt/5.9/5.9.9/single/下載Qt5.9.9源碼
4.2 配置編譯
?
解壓qt源碼包
$ tar xvf qt-everywhere-opensource-src-5.9.9.tar.xz進入到源碼目錄
$ cd qt-everywhere-opensource-src-5.9.94.2.1 配置qtbase/mkspecs/qmake.conf文件
#
# qmake configuration for building with arm-linux-gnueabihf-g++
#MAKEFILE_GENERATOR = UNIX
CONFIG += incremental
QMAKE_INCREMENTAL_STYLE = sublibQT_QPA_DEFAULT_PLATFORM = linuxfb #eglfs
QMAKE_CFLAGS_RELEASE += -O2 -march=armv7-a
QMAKE_CXXFLAGS_RELEASE += -O2 -march=armv7-ainclude(../common/linux.conf)
include(../common/gcc-base-unix.conf)
include(../common/g++-unix.conf)QMAKE_INCDIR += /opt/arm_sqlite/include #已編譯的sqlite頭文件路徑
QMAKE_LIBDIR += /opt/arm_sqlite/lib #已編譯的sqlite庫路徑QMAKE_INCDIR += /home/wzl/arm_openssl/include #已編譯的openssl頭文件路徑
QMAKE_LIBDIR += /home/wzl/arm_openssl/lib #已編譯的openssl庫路徑# modifications to g++.conf
QMAKE_CC = arm-linux-gnueabihf-gcc
QMAKE_CXX = arm-linux-gnueabihf-g++
QMAKE_LINK = arm-linux-gnueabihf-g++
QMAKE_LINK_SHLIB = arm-linux-gnueabihf-g++# modifications to linux.conf
QMAKE_AR = arm-linux-gnueabihf-ar cqs
QMAKE_OBJCOPY = arm-linux-gnueabihf-objcopy
QMAKE_NM = arm-linux-gnueabihf-nm -P
QMAKE_STRIP = arm-linux-gnueabihf-strip
load(qt_config)4.2.1 編寫構建腳本
$ vim build.sh內容如下：
#!/bin/sh
./configure \
-v \
-prefix /home/wzl/workspace/Arm_Qt5.9.4 \
-release \
-opensource \
-no-accessibility \
-make libs \
-xplatform linux-arm-gnueabi-g++ \
-optimized-qmake \
-pch \
-sqlite \
-qt-zlib \
-openssl-linked \
-no-sse2 \
-no-openssl \
-opengl es2 \
-no-cups \
-no-glib \
-no-iconv \
-no-pkg-config \
-no-separate-debug-info \
-skip qt3d \
-skip qtcanvas3d \
-skip qtdoc \
-skip qtwayland
exit4.2.3 編譯
配置執行權限
$ sudo chmod 777 build.sh$ ./build.sh
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