在 GCC ARM Embedded
https://launchpad.net/gcc-arm-embedded/
上面下載了個arm-none-eabi-gcc
用cmake 編譯時
#指定C交叉編譯器,必須配置
#或交叉編譯器使用絕對地址
SET(CMAKE_C_COMPILER "/disk2/gcc-arm-none-eabi-4.8.3/bin/arm-none-eabi-gcc") #指定C++交叉編譯器 SET(CMAKE_CXX_COMPILER "/disk2/gcc-arm-none-eabi-4.8.3/bin/arm-none-eabi-g++")
一直報錯:
The C compiler "/disk2/gcc-arm-none-eabi-4.8.3/bin/arm-none-eabi-gcc" is not able to compile a simple test program. Compiling the C compiler identification source file "CMakeCCompilerId.c" failed. Compiler: /disk2/gcc-arm-none-eabi-4.8.3/bin/arm-none-eabi-gcc Build flags: Id flags: The output was: 1 /disk2/gcc-arm-none-eabi-4.8.3/bin/../lib/gcc/arm-none-eabi/4.8.3/../../../../arm-none-eabi/lib/libc.a(lib_a-exit.o): In function `exit': exit.c:(.text.exit+0x2c): undefined reference to `_exit' collect2: error: ld returned 1 exit status Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" failed. Compiler: /disk2/gcc-arm-none-eabi-4.8.3/bin/arm-none-eabi-g++ Build flags: Id flags: The output was: 1
baidu 半天,的結果是
** semihosting If you need semihosting, linking like: $ arm-none-eabi-gcc --specs=rdimon.specs $(OTHER_LINK_OPTIONS) ** non-semihosting/retarget If you are using retarget, linking like: $ arm-none-eabi-gcc --specs=nosys.specs $(OTHER_LINK_OPTIONS
加上 --specs=nosys.specs 還是報錯.
當時就覺得這個
Thread model: single 與原來4.5版本的
Thread model: posix 不一致有些奇怪.
root@debian:/disk2/gcc-arm-none-eabi-4.8.3/bin# arm-none-linux-gnueabi-gcc -v Using built-in specs. COLLECT_GCC=arm-none-linux-gnueabi-gcc COLLECT_LTO_WRAPPER=/usr/arm-linux-g++_4.5.1/4.5.1/bin/../libexec/gcc/arm-none-linux-gnueabi/4.5.1/lto-wrapper Target: arm-none-linux-gnueabi Configured with: /work/toolchain/build/src/gcc-4.5.1/configure --build=i686-build_pc-linux-gnu --host=i686-build_pc-linux-gnu --target=arm-none-linux-gnueabi --prefix=/opt/FriendlyARM/toolschain/4.5.1 --with-sysroot=/opt/FriendlyARM/toolschain/4.5.1/arm-none-linux-gnueabi/sys-root --enable-languages=c,c++ --disable-multilib --with-cpu=arm1176jzf-s --with-tune=arm1176jzf-s --with-fpu=vfp --with-float=softfp --with-pkgversion=ctng-1.8.1-FA --with-bugurl=http://www.arm9.net/ --disable-sjlj-exceptions --enable-__cxa_atexit --disable-libmudflap --with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm' --with-gmp=/work/toolchain/build/arm-none-linux-gnueabi/build/static --with-mpfr=/work/toolchain/build/arm-none-linux-gnueabi/build/static --with-ppl=/work/toolchain/build/arm-none-linux-gnueabi/build/static --with-cloog=/work/toolchain/build/arm-none-linux-gnueabi/build/static --with-mpc=/work/toolchain/build/arm-none-linux-gnueabi/build/static --with-libelf=/work/toolchain/build/arm-none-linux-gnueabi/build/static --enable-threads=posix --with-local-prefix=/opt/FriendlyARM/toolschain/4.5.1/arm-none-linux-gnueabi/sys-root --disable-nls --enable-symvers=gnu --enable-c99 --enable-long-long Thread model: posix gcc version 4.5.1 (ctng-1.8.1-FA) root@debian:/disk2/gcc-arm-none-eabi-4.8.3/bin# ./arm-none-eabi-gcc -v Using built-in specs. COLLECT_GCC=./arm-none-eabi-gcc COLLECT_LTO_WRAPPER=/disk2/gcc-arm-none-eabi-4.8.3/bin/../lib/gcc/arm-none-eabi/4.8.3/lto-wrapper Target: arm-none-eabi Configured with: /home/build/work/GCC-4-8-build/src/gcc/configure --target=arm-none-eabi --prefix=/home/build/work/GCC-4-8-build/install-native --libexecdir=/home/build/work/GCC-4-8-build/install-native/lib --infodir=/home/build/work/GCC-4-8-build/install-native/share/doc/gcc-arm-none-eabi/info --mandir=/home/build/work/GCC-4-8-build/install-native/share/doc/gcc-arm-none-eabi/man --htmldir=/home/build/work/GCC-4-8-build/install-native/share/doc/gcc-arm-none-eabi/html --pdfdir=/home/build/work/GCC-4-8-build/install-native/share/doc/gcc-arm-none-eabi/pdf --enable-languages=c,c++ --enable-plugins --disable-decimal-float --disable-libffi --disable-libgomp --disable-libmudflap --disable-libquadmath --disable-libssp --disable-libstdcxx-pch --disable-nls --disable-shared --disable-threads --disable-tls --with-gnu-as --with-gnu-ld --with-newlib --with-headers=yes --with-python-dir=share/gcc-arm-none-eabi --with-sysroot=/home/build/work/GCC-4-8-build/install-native/arm-none-eabi --build=i686-linux-gnu --host=i686-linux-gnu --with-gmp=/home/build/work/GCC-4-8-build/build-native/host-libs/usr --with-mpfr=/home/build/work/GCC-4-8-build/build-native/host-libs/usr --with-mpc=/home/build/work/GCC-4-8-build/build-native/host-libs/usr --with-isl=/home/build/work/GCC-4-8-build/build-native/host-libs/usr --with-cloog=/home/build/work/GCC-4-8-build/build-native/host-libs/usr --with-libelf=/home/build/work/GCC-4-8-build/build-native/host-libs/usr --with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm' --with-pkgversion='GNU Tools for ARM Embedded Processors' --with-multilib-list=armv6-m,armv7-m,armv7e-m,armv7-r Thread model: single gcc version 4.8.3 20131129 (release) [ARM/embedded-4_8-branch revision 205641] (GNU Tools for ARM Embedded Processors) root@debian:/disk2/gcc-arm-none-eabi-4.8.3/bin# ^C
無意在
http://www.veryarm.com/296.html
上面看見
1、arm-none-eabi-gcc
（ARM architecture，no vendor，not target an operating system，complies with the ARM EABI）
用於編譯 ARM 架構的裸機系統（包括 ARM Linux 的 boot、kernel，不適用編譯 Linux 應用 Application），一般適合 ARM7、Cortex-M 和 Cortex-R 內核的芯片使用，所以不支持那些跟操作系統關系密切的函數，比如fork(2)，他使用的是 newlib 這個專用於嵌入式系統的C庫。
2、arm-none-linux-gnueabi-gcc
(ARM architecture, no vendor, creates binaries that run on the Linux operating system, and uses the GNU EABI)
主要用於基於ARM架構的Linux系統，可用於編譯 ARM 架構的 u-boot、Linux內核、linux應用等。arm-none-linux-gnueabi基於GCC，使用Glibc庫，經過 Codesourcery 公司優化過推出的編譯器。arm-none-linux-gnueabi-xxx 交叉編譯工具的浮點運算非常優秀。一般ARM9、ARM11、Cortex-A 內核，帶有 Linux 操作系統的會用到。
3、arm-eabi-gcc
Android ARM 編譯器。
4、armcc
ARM 公司推出的編譯工具，功能和 arm-none-eabi 類似，可以編譯裸機程序（u-boot、kernel），但是不能編譯 Linux 應用程序。armcc一般和ARM開發工具一起，Keil MDK、ADS、RVDS和DS-5中的編譯器都是armcc，所以 armcc 編譯器都是收費的（愛國版除外，呵呵~~）。
5、arm-none-uclinuxeabi-gcc 和 arm-none-symbianelf-gcc
arm-none-uclinuxeabi 用於uCLinux，使用Glibc。
arm-none-symbianelf 用於symbian，沒用過，不知道C庫是什么 。
才慌然 呆了...
后在
http://www.veryarm.com/arm-none-linux-gnueabi-gcc#linux
上下載 了最近的
arm-2014.05-29-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar
編譯成功.
最新版本:
root@debian:/disk2/arm-2014.05# ./bin/arm-none-linux-gnueabi-gcc -v Using built-in specs. COLLECT_GCC=./bin/arm-none-linux-gnueabi-gcc COLLECT_LTO_WRAPPER=/disk2/arm-2014.05/bin/../libexec/gcc/arm-none-linux-gnueabi/4.8.3/lto-wrapper Target: arm-none-linux-gnueabi Configured with: /scratch/maciej/arm-linux-2014.05-rel/src/gcc-4.8-2014.05/configure --build=i686-pc-linux-gnu --host=i686-pc-linux-gnu --target=arm-none-linux-gnueabi --enable-threads --disable-libmudflap --disable-libssp --disable-libstdcxx-pch --enable-extra-sgxxlite-multilibs --with-arch=armv5te --with-gnu-as --with-gnu-ld --with-specs='%{save-temps: -fverbose-asm} %{funwind-tables|fno-unwind-tables|mabi=*|ffreestanding|nostdlib:;:-funwind-tables} -D__CS_SOURCERYGXX_MAJ__=2014 -D__CS_SOURCERYGXX_MIN__=5 -D__CS_SOURCERYGXX_REV__=29' --enable-languages=c,c++ --enable-shared --enable-lto --enable-symvers=gnu --enable-__cxa_atexit --with-pkgversion='Sourcery CodeBench Lite 2014.05-29' --with-bugurl=https://sourcery.mentor.com/GNUToolchain/ --disable-nls --prefix=/opt/codesourcery --with-sysroot=/opt/codesourcery/arm-none-linux-gnueabi/libc --with-build-sysroot=/scratch/maciej/arm-linux-2014.05-rel/install/opt/codesourcery/arm-none-linux-gnueabi/libc --with-gmp=/scratch/maciej/arm-linux-2014.05-rel/obj/pkg-2014.05-29-arm-none-linux-gnueabi/arm-2014.05-29-arm-none-linux-gnueabi.extras/host-libs-i686-pc-linux-gnu/usr --with-mpfr=/scratch/maciej/arm-linux-2014.05-rel/obj/pkg-2014.05-29-arm-none-linux-gnueabi/arm-2014.05-29-arm-none-linux-gnueabi.extras/host-libs-i686-pc-linux-gnu/usr --with-mpc=/scratch/maciej/arm-linux-2014.05-rel/obj/pkg-2014.05-29-arm-none-linux-gnueabi/arm-2014.05-29-arm-none-linux-gnueabi.extras/host-libs-i686-pc-linux-gnu/usr --with-isl=/scratch/maciej/arm-linux-2014.05-rel/obj/pkg-2014.05-29-arm-none-linux-gnueabi/arm-2014.05-29-arm-none-linux-gnueabi.extras/host-libs-i686-pc-linux-gnu/usr --with-cloog=/scratch/maciej/arm-linux-2014.05-rel/obj/pkg-2014.05-29-arm-none-linux-gnueabi/arm-2014.05-29-arm-none-linux-gnueabi.extras/host-libs-i686-pc-linux-gnu/usr --disable-libgomp --disable-libitm --enable-libatomic --disable-libssp --enable-poison-system-directories --with-build-time-tools=/scratch/maciej/arm-linux-2014.05-rel/install/opt/codesourcery/arm-none-linux-gnueabi/bin --with-build-time-tools=/scratch/maciej/arm-linux-2014.05-rel/install/opt/codesourcery/arm-none-linux-gnueabi/bin SED=sed Thread model: posix gcc version 4.8.3 20140320 (prerelease) (Sourcery CodeBench Lite 2014.05-29) root@debian:/disk2/arm-2014.05# cd ..
以此小記。