build android toochain on mac （gcc 4.4.3 compile）

gcc 4.4.3 的編譯器編譯  編譯環境：gcc -versioni686-apple-darwin11-llvm-gcc-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.11.00)Copyright (C) 2007 Free Software Foundation, Inc.This is free software; see the source for copying conditions. There is NOwarranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. uname -aDarwin Mine.local 12.2.1 Darwin Kernel Version 12.2.1: Thu Oct 18 16:32:48 PDT 2012; root:xnu-2050.20.9~2/RELEASE_X86_64 x86_64  編譯步驟

1.checkout 原始碼

repo init -u https://android.googlesource.com/toolchain/manifestrepo sync

  2.checkout 編譯工具到正確的版本查看toolchain下的SOURCE檔案 

gcc/ synced to        commit 2f2d3b42b0ea0c4871518c7b6176bd2b55ae527d        Author: Jing Yu <jingyu@google.com>        Date: Mon Dec 13 12:58:16 2010 -0800     And rollback the following two androideabi related patches.    commit a4d9421024ed3f70aede5b11f977d264eb69bf61    Author: Jing Yu <jingyu@google.com>    Date: Tue Aug 10 10:08:15 2010 -0700     commit f01e65905acd1e2052e875130cb723a658765bc8    Author: Jing Yu <jingyu@google.com>    Date: Thu Jul 22 14:39:44 2010 -0700 binutils/ synced to        commit 8a5a8339de3149b7f99caf08e9cb72467d60cd01        Author: Jing Yu <jingyu@google.com>        Date: Thu Nov 4 17:22:38 2010 -0700 gdb/ synced to        commit b028dbaa736a574062136861a11e76a9ab6b4bb3        Author: Jing Yu <jingyu@google.com>        Date: Mon Dec 13 14:44:59 2010 -0800 gmp/ synced to        commit 9fb242a79dd122d7fbf867daf5620dba6927bd2e        Author: Jing Yu <jingyu@google.com>        Date: Thu Nov 5 17:43:59 2009 -0800 mpfr/ synced to        commit da6dfde986af1b56f0f41e9f5de61d093fa8af90        Author: Jing Yu <jingyu@google.com>        Date: Thu Nov 5 17:50:13 2009 -0800 build/ synced to        commit 4cc02faaa7e8828f9458b1828a6f85e7791ae2aa        Author: Jim Huang <jserv@0xlab.org>        Date: Fri Aug 20 23:30:37 2010 +0800    And rollback the following 3 patches.   commit de263c26a7680529baca731c003bc58b68d72511   Author: Jing Yu <jingyu@google.com>   Date: Thu Aug 12 15:52:15 2010 -0700    commit a80c0ec10d3832039c5d5a481f5f62172eddc929   Author: Jing Yu <jingyu@google.com>   Date: Tue Aug 10 10:12:29 2010 -0700    commit f82379147a1d2c484dcc1bb47c4ecd90e40fa3e2   Author: Jing Yu <jingyu@google.com>   Date: Thu Jul 22 14:27:24 2010 -0700

 按照上述內容check到相應的版本。  3.準備sysroot可以自己先編譯一版android os，只要確保bionic c被編譯即可使用build下的指令碼拷貝到sys root下

./build-sysroot.sh build_out_target_path sysroot_path

  4.build gcc建立一個buildgcc目錄，進入該目錄事先可以參照一下google的編譯參數：

arm-eabi-gcc -vUsing built-in specs.Target: arm-eabiConfigured with: /Volumes/project-jingyu/android_toolchain/build/../gcc/gcc-4.4.3/configure --prefix=/usr/local --target=arm-eabi --host=i686-apple-darwin --build=i686-apple-darwin --enable-languages=c,c++ --with-gmp=/Volumes/project-jingyu/toolchain-build/obj/temp-install --with-mpfr=/Volumes/project-jingyu/toolchain-build/obj/temp-install --disable-libssp --enable-threads --disable-nls --disable-libmudflap --disable-libgomp --disable-libstdc__-v3 --disable-sjlj-exceptions --disable-shared --disable-tls --with-float=soft --with-fpu=vfp --with-arch=armv5te --enable-target-optspace --with-abi=aapcs --with-gcc-version=4.4.3 --with-binutils-version=2.19 --with-gmp-version=4.2.4 --with-mpfr-version=2.4.1 --with-gdb-version=7.1.x --with-arch=armv5te --with-multilib-list=mandroid --with-sysroot=/Volumes/project-jingyu/cupcake_rel_root --enable-gold=both/gold --program-transform-name='s&^&arm-eabi-&'Thread model: singlegcc version 4.4.3 (GCC) 

 接下來自己自己設定下自己的編譯參數

../build/configure --with-gcc-version=4.4.3 --with-gmp-version=4.2.4 --with-binutils-version=2.19 --with-mpfr-version=2.4.1 --with-sysroot=sysroot_path --prefix=${PWD}/gccinstall --target=arm-eabi --build=x86_64-apple-darwin --with-multi-list=mandroid --enable-gold=both/gold --host=x86_64-apple-darwin --with-gdb-version=7.1.x

 本人測試過，binutils的版本不對的話，編譯OS的時候會出錯，是ld的問題 由於mac的gcc 4.2目前預設帶了-Wformat-security參數，編譯binutils會有error，需要改下binutils-2.19的configure檔案在-Wall 後面添加 -Wno-format 

make build

  5.install

make install

 至此android 使用的 arm-eabi-gcc 4.4.3 就編譯完成了