|
ÏÂÃæÔÚ½éÉܽ»²æ±àÒëÆ÷µÄÖÆ×÷֮ǰ£¬ÏȽéÉÜÒ»ÏÂuClibcºÍglibcµÈ»ù´¡ÖªÊ¶£º
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GCC£º gcc£¨gnu collect compiler£©ÊÇÒ»×é±àÒ빤¾ßµÄ×ܳơ£ËüÖ÷ÒªÍê³ÉµÄ¹¤×÷ÈÎÎñÊÇ¡°Ô¤´¦Àí¡±ºÍ¡°±àÒ롱£¬ÒÔ¼°ÌṩÁËÓë±àÒëÆ÷½ôÃÜÏà¹ØµÄÔËÐпâµÄÖ§³Ö£¬Èçlibgcc_s.so¡¢libstdc++.soµÈ¡£
|
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glibc: glibcÊÇgnu·¢²¼µÄlibc¿â£¬Ò²¼´cÔËÐп⣬ËûÒ²ÊÇCCµÄ±ê×¼¿â£¬ËûÀïÃæÓÐGCC¸÷ÖÖ±ê×¼º¯ÊýµÄʵÏÖ£¬»¹Óи÷ÖÖunixϵµÄº¯ÊýÔÚÀïÃæ¡£glibcÊÇlinuxϵͳÖÐ×îµ×²ãµÄapi£¬¼¸ºõÆäËüÈκεÄÔËÐпⶼ»áÒÐÀµÓÚglibc¡£glibc³ýÁË·â×°linux²Ù×÷ϵͳËùÌṩµÄϵͳ·þÎñÍ⣬Ëü±¾ÉíÒ²ÌṩÁËÐí¶àÆäËüһЩ±ØÒª¹¦ÄÜ·þÎñµÄʵÏÖ¡£
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uclibc: uclibcÊÇÁíÒ»cÔËÐп⣬ÓëglibcÏà±ÈËû¸üС¡£µ±³õ´´½¨uclinuxµÄʱºò£¬ÐèÒªÒ»¸öÄܱàÒë±È½ÏСÌå»ýµÄÄ¿±êÎļþµÄ±àÒëÆ÷£¬Õâ¸öʱºò¾ÍÓÐÈËдÁËÒ»¸öuc-libc¿â£¬Õâ¸ö¿â¿ÉÒÔ˵ÊÇuclinuxÉϵÄÒ»¸öglibcÒÆÖ²£¬µ«ÊÇ»¹ÊÇÓкܶຯÊýûÓÐʵÏÖ£¬ËùÒÔÈËÃÇÖ»ÄÜÃãÇ¿ÓÃËüÀ´ÔÚuclinuxÉÏд³ÌÐò¡£ºóÀ´£¬ÓÐÅ£ÈËÓÖдÁËuclibc,Õâ¸öÊÇÕæÕýÒâÒåÉϵÄÊÝÉí¹ýºóµÄglibc,Íê³ÉÁ˺ܶàÒÔÇ°uc-libc²»Ö§³ÖµÄº¯Êý¡£±¾È˾õµÃ×îÓмÛÖµµÄ¾ÍÊÇuclibcʵÏÖÁËpthreadϵÁк¯Êý£¬ÒÔÇ°ÓÃuc-libcÖ»ÄÜÓÃfork+execÀ´Íê³ÉµÄ¶àÏ̹߳¦ÄÜ¡£uclibcÏÖÔÚÒ²²»Ö»ÊÇÓÃÔÚǶÈëʽϵͳÉÏÃ棬һЩÈËҲϲ»¶ÔÚ±ê׼ƽ̨ʹÓÃËüÀ´±àÒëһЩ³ÌÐò¡£ËäÈ»uClibcºÍGlibcÔÚÒÑÓеĽӿÚÉÏÊǼæÈݵģ¬µ«ÓÐЩ½Ó¿Ú²¢Ã»ÓÐʵÏÖ¡£
|
|
libstdc++: libstdc++ ÊÇGNU C++ standard Library.
|
|
ÁíÍ⣬ÍøÉÏÓÐЩ¹ØÓÚglibcºÍuClibcµÄһЩÇø±ðµÄÎÄÕ£¬ÎÒ¿´ÁËһϣ¬·¢ÏÖÓÐЩÎÊÌâÔçÒѾ½â¾öÁË£ºÈç uClibcµÄÔËÐÐʱ¿âlibrtµ±Ç°È±ÉÙaio½Ó¿Ú¡¢È«²¿µÄʱÖӽӿں͹²ÏíÄÚ´æ½Ó¿Ú(½ö½öʵÏÖ¶¨Ê±Æ÷½Ó¿ÚºÍÏûÏ¢¶ÓÁнӿÚ)¡£ÎÒÔÚʹÓÃuClibcʱ¾Íû·¢ÏÖÕâЩÏÞÖÆ£¬¿ÉÄÜÊÇÓÉÓÚÔçÆÚuClinuxÖ÷ÒªÊÇȱÉÙMMU£¬µ¼Ö²»ÄÜÖ§³Ö¶¯Ì¬¿â¼¼ÊõºÍ¹²ÏíÄڴ棬µ«ÏÖÔÚÒѾÄܹ»ºÜºÃµÄ½â¾öÁË¡£ÕâÀï·ÅÒ»¶Î¹Ù·½¹ØÓÚuClibcµÄ¼ò½é£º
|
|
A C library for embedded Linux
|
uClibc (aka uClibc/pronounced yew-see-lib-see) is a C library for developing embedded Linux systems. It is much smaller than the GNU C Library, but nearly all applications supported by glibc also work perfectly with uClibc. Porting applications from glibc to uClibc typically involves just recompiling the source code. uClibc even supports shared libraries and threading. It currently runs on standard Linux and MMU-less (also known as uClinux) systems with support for alpha, amd64, ARM, Blackfin, cris, h8300, hppa, i386, i960, ia64, m68k, mips/mipsel, PowerPC, SH, SPARC, and v850 processors.
|
If you are building an embedded Linux system and you find that glibc is eating up too much space, you may want to consider using uClibc. If you are building a huge fileserver with 12 Terabytes of storage, then using glibc may make more sense. Unless, for example, that 12 Terabytes will be Network Attached Storage and you plan to burn Linux into the system's firmware...
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1£¬Linux·þÎñÆ÷²Ù×÷ϵͳ»·¾³ËµÃ÷£º
|
[guowenxue@centos6 crosstool]$ lsb_release -a
|
LSB Version: :core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
|
Distributor ID: CentOS
|
Description: CentOS release 6.3 (Final)
|
Release: 6.3
|
Codename: Final
|
[guowenxue@centos6 crosstool]$ uname -a
|
Linux centos6.localdomain 2.6.32-279.1.1.el6.x86_64 #1 SMP Tue Jul 10 13:47:21 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
|
[guowenxue@centos6 crosstool]$ gcc -v
|
Using built-in specs.
|
Target: x86_64-redhat-linux
|
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk --disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre --enable-libgcj-multifile --enable-java-maintainer-mode --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib --with-ppl --with-cloog --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux
|
Thread model: posix
|
gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC)
|
|
2£¬Ê×ÏÈ´´½¨/opt/crosstool-ngĿ¼£¬²¢ÏÂÔØ£¬±àÒë²¢°²×°crosstool-ngµ½¸ÃĿ¼ÏÂ
|
[guowenxue@centos6 ~]$ sudo mkdir -p /opt/crosstool-ng
|
[guowenxue@centos6 ~]$ sudo chown guowenxue.guowenxue /opt/crosstool-ng
|
[guowenxue@centos6 ~]$ cd /opt/crosstool-ng
|
[guowenxue@centos6 crosstool-ng]$ wget http://crosstool-ng.org/download/crosstool-ng/crosstool-ng-1.15.3.tar.bz2
|
--2012-07-18 15:35:40-- http://crosstool-ng.org/download/crosstool-ng/crosstool-ng-1.15.3.tar.bz2
|
Resolving crosstool-ng.org... 140.211.15.107
|
Connecting to crosstool-ng.org|140.211.15.107|:80... connected.
|
HTTP request sent, awaiting response... 200 OK
|
Length: 1976469 (1.9M) [application/x-bzip]
|
Saving to: ¡°crosstool-ng-1.15.3.tar.bz2¡±
|
|
100%[==========================================================================================>] 1,976,469 442K/s in 4.4s
|
|
2012-07-18 15:35:45 (442 KB/s) - ¡°crosstool-ng-1.15.3.tar.bz2¡± saved [1976469/1976469
|
|
[guowenxue@centos6 crosstool-ng]$ tar -xjf crosstool-ng-1.15.3.tar.bz2
|
[guowenxue@centos6 crosstool-ng]$ cd crosstool-ng-1.15.3
|
[guowenxue@centos6 crosstool-ng-1.15.3]$ ./configure --prefix=/opt/crosstool-ng
|
[guowenxue@centos6 crosstool-ng-1.15.3]$ make && make install
|
[guowenxue@centos6 crosstool-ng-1.15.3]$ cd /opt/crosstool-ng
|
[guowenxue@centos6 crosstool-ng]$ ls
|
bin crosstool-ng-1.15.3 crosstool-ng-1.15.3.tar.bz2 lib share
|
|
|
3£¬´´½¨Ê¹ÓÃcrosstool-ngÖÆ×÷½»²æ±àÒëÆ÷µÄ¹¤×÷Ŀ¼/opt/crosstool¡£²¢ÏÂÔØÏà¹ØÔ´´úÂë°üµ½/opt/crosstool/srcĿ¼Ï£¬Õâ¸öÔ´Âë°ü·¾¶ÒÀÀµÏÂÃæµÄÅäÖÃ.
|
[guowenxue@centos6 crosstool-ng]$ sudo mkdir -p /opt/crosstool/src
|
[guowenxue@centos6 crosstool-ng]$ sudo chown -R guowenxue.guowenxue /opt/crosstool
|
[guowenxue@centos6 crosstool-ng]$ cd /opt/crosstool
|
[guowenxue@centos6 crosstool]$ ls src/
|
binutils-2.19.1a.tar.bz2 expat-2.0.1.tar.gz glibc-2.9.tar.bz2 libelf-0.8.13.tar.gz mpfr-2.4.2.tar.xz
|
dmalloc-5.5.2.tgz gcc-4.3.2.tar.bz2 glibc-ports-2.9.tar.bz2 linux-3.0.30.tar.xz ncurses-5.9.tar.gz
|
duma_2_5_15.tar.gz gdb-6.8a.tar.bz2 gmp-4.3.2.tar.bz2 ltrace_0.5.3.orig.tar.gz strace-4.5.19.tar.bz2
|
Ìáʾ£ºÔÚÏÂÔØÕâЩԴÂë°üʱ£¬Ö±½ÓʹÓÃgoogleÓ¢ÎÄËÑË÷Ô´Âë°üÃû³Æ£¬¾ÍÄÜÕÒµ½ÏàÓ¦µÄÏÂÔصØÖ·(×îºÃ´ÓÔ´Âë°ü¹Ù·½ÏÂÔØ)¡£Èç¹û²»ÊÂÏÈÏÂÔغõĻ°£¬ºóÃæÖÆ×÷½»²æ±àÒëÆ÷µÄ¹ý³ÌÖÐcrosstool-ng»á×Ô¶¯°ïÎÒÃÇÏÂÔØ£¬µ«Õâ¸ö¹ý³Ì»á±È½ÏÂþ³¤¡£ËùÒÔÎÒÒ»°ãʵÏÖÓÃѸÀ×ÏÂÔغúóÔÙ¿ªÊ¼±àÒë¡£
|
|
4, ÔÚ/opt/crosstoolÏÂÅäÖÃÖÆ×÷½»²æ±àÒëÆ÷µÄÏà¹ØÑ¡Ïî
|
[guowenxue@centos6 crosstool]$ cp /opt/crosstool-ng/lib/ct-ng.1.15.3/samples/arm-unknown-linux-gnueabi/crosstool.config .config
|
[guowenxue@centos6 crosstool]$ export PATH=$PATH:/opt/crosstool-ng/bin/
|
[guowenxue@centos6 crosstool]$ export TERM=vt100
|
[guowenxue@centos6 crosstool]$ ct-ng menuconfig
|
|
Paths and misc options --->
|
... ...
|
(${PWD}/src) Local tarballs directory ÕâÀïÖ¸¶¨ÁËÖÆ×÷½»²æ±àÒëÆ÷ËùÐèÒªµÄÔ´Âë°üµÄÏÂÔØλÖÃ
|
... ...
|
(${PWD}/${CT_TARGET}) Prefix directory ${PWD}/${CT_TARGET} ÕâÀïÖ¸¶¨ÁËÖÆ×÷½»²æ±àÒëÆ÷µÄ°²×°Â·¾¶
|
|
Target options --->
|
... ...
|
ÏÂÃæµÄÅäÖÃÇë²Î¿¼man gccºÍÏàÓ¦CPUµÄdatasheetÀ´ÉèÖÃ:
|
Õâ¸öÊÇÓÃÀ´ÅäÖÃ-march²ÎÊý£¬Èç¹ûÊÇAT91SAM9260/AT91SAM9G20 µÈARM926TµÄºËµÄ»°£¬¾ÍÉèÖãº
|
(armv5te) Architecture level
|
Èç¹ûÊÇS3C2440/S3C2410 µÈARM920TµÄºËµÄ»°£¬¾ÍÉèÖãº
|
(armv4t) Architecture level
|
|
|
Õâ¸öÊÇÓÃÀ´ÅäÖÃ-mcpu²ÎÊý£¬Èç¹ûÊÇAT91SAM9260/AT91SAM9G20 µÈARM926TµÄºËµÄ»°£¬¾ÍÉèÖãº
|
(arm926ej-s) Emit assembly for CPU
|
Èç¹ûÊÇS3C2440/S3C2410 µÈARM920TµÄºËµÄ»°£¬¾ÍÉèÖãº
|
(arm920t) Emit assembly for CPU
|
ĬÈÏÊÇunknow
|
|
|
Õâ¸öÊÇÓÃÀ´ÅäÖÃ-mtune²ÎÊý£¬Èç¹ûÊÇAT91SAM9260/AT91SAM9G20 µÈARM926TµÄºËµÄ»°£¬¾ÍÉèÖãº
|
(arm926ej-s) Tune for CPU
|
Èç¹ûÊÇS3C2440/S3C2410 µÈARM920TµÄºËµÄ»°£¬¾ÍÉèÖãº
|
(arm920t) Tune for CPU
|
ĬÈÏÊÇunknow
|
|
Toolchain options --->
|
... ...
|
|
Èç¹ûÊÇAT91SAM9260/AT91SAM9G20 µÈARM926TµÄºËµÄ»°£¬¾ÍÉèÖãº
|
(arm926t) Tuple's vendor string
|
Èç¹ûÊÇS3C2440/S3C2410 µÈARM920TµÄºËµÄ»°£¬¾ÍÉèÖãº
|
(arm920t) Tuple's vendor string
|
ĬÈÏÊÇunknow£¬ÕâÀïÖ»Êǽ»²æ±àÒëÆ÷µÄÃû×Ö
|
|
C compiler --->
|
[ ] Fortran È¡Ïû¶ÔFortranµÄÖ§³Ö£¬ÎÒÃÇÓò»µ½
|
[ ] Java È¡Ïû¶ÔJavaµÄÖ§³Ö£¬ÎÒÃÇÓò»µ½
|
|
|
5, ½ÓÏÂÀ´ÎÒÃǾͿªÊ¼ÔÚ/opt/crosstoolÏÂÃ濪ʼ±àÒëÁË£¬Õâ¸ö¹ý³ÌµÄʱ¼äÒÀÀµPCµÄÐÔÄÜ£¬ÎÒµÄLinux·þÎñÆ÷´¦ÀíÆ÷ÊÇIntel(R) Xeon(R) CPU E31235 @ 3.20GHz£¬4ºË8Ï̵߳ġ£ËùÒÔÎÒÕâÀïʹÓÃbuild.16±àÒë¡£´ÓÏÂÃæµÄ¹ý³Ì¿ÉÒÔ¿´µ½£¬Õâ¸ö¹ý³Ì×ܹ²Ö»»¨ÁË10·Ö08Ãë¡£Õâ±ÈʹÓÃBuildrootÖÆ×÷½»²æ±àÒëÆ÷¿ìºÜ¶à¡£
|
[guowenxue@centos6 crosstool]$ ct-ng build.16
|
[INFO ] Performing some trivial sanity checks
|
[INFO ] Build started 20120718.110916
|
[INFO ] Building environment variables[guowenxue@centos6 crosstool]$ ct-ng build.16
|
[INFO ] Performing some trivial sanity checks
|
[INFO ] Build started 20120718.155253
|
[INFO ] Building environment variables
|
[EXTRA] Preparing working directories
|
[EXTRA] Installing user-supplied crosstool-NG configuration
|
[EXTRA] =================================================================
|
[EXTRA] Dumping internal crosstool-NG configuration
|
[EXTRA] Building a toolchain for:
|
[EXTRA] build = x86_64-unknown-linux-gnu
|
[EXTRA] host = x86_64-unknown-linux-gnu
|
[EXTRA] target = arm-arm926t-linux-gnueabi
|
[EXTRA] Dumping internal crosstool-NG configuration: done in 0.04s (at 00:00)
|
[INFO ] =================================================================
|
[INFO ] Retrieving needed toolchain components' tarballs
|
[INFO ] Retrieving needed toolchain components' tarballs: done in 0.06s (at 00:00)
|
[INFO ] =================================================================
|
[INFO ] Extracting and patching toolchain components
|
[INFO ] Extracting and patching toolchain components: done in 0.10s (at 00:01)
|
[INFO ] =================================================================
|
[INFO ] Installing GMP for host
|
[EXTRA] Configuring GMP
|
[EXTRA] Building GMP
|
[EXTRA] Installing GMP
|
[INFO ] Installing GMP for host: done in 25.08s (at 00:26)
|
[INFO ] =================================================================
|
[INFO ] Installing MPFR for host
|
[EXTRA] Configuring MPFR
|
[EXTRA] Building MPFR
|
[EXTRA] Installing MPFR
|
[INFO ] Installing MPFR for host: done in 8.06s (at 00:34)
|
[INFO ] =================================================================
|
[INFO ] Installing binutils for host
|
[EXTRA] Configuring binutils
|
[EXTRA] Building binutils
|
[EXTRA] Installing binutils
|
[INFO ] Installing binutils for host: done in 18.80s (at 00:52)
|
[INFO ] =================================================================
|
[INFO ] Installing pass-1 core C compiler
|
[EXTRA] Configuring core C compiler
|
[EXTRA] Building core C compiler
|
[EXTRA] Installing core C compiler
|
[INFO ] Installing pass-1 core C compiler: done in 32.69s (at 01:25)
|
[INFO ] =================================================================
|
[INFO ] Installing kernel headers
|
[EXTRA] Installing kernel headers
|
[EXTRA] Checking installed headers
|
[INFO ] Installing kernel headers: done in 3.59s (at 01:29)
|
[INFO ] =================================================================
|
[INFO ] Installing C library headers & start files
|
[EXTRA] Configuring C library
|
[EXTRA] Installing C library headers
|
[EXTRA] Installing C library start files
|
[INFO ] Installing C library headers & start files: done in 16.95s (at 01:46)
|
[INFO ] =================================================================
|
[INFO ] Installing pass-2 core C compiler
|
[EXTRA] Configuring core C compiler
|
[EXTRA] Building core C compiler
|
[EXTRA] Installing core C compiler
|
[INFO ] Installing pass-2 core C compiler: done in 43.60s (at 02:29)
|
[INFO ] =================================================================
|
[INFO ] Installing C library
|
[EXTRA] Configuring C library
|
[EXTRA] Building C library
|
[EXTRA] Installing C library
|
[INFO ] Installing C library: done in 170.78s (at 05:20)
|
[INFO ] =================================================================
|
[INFO ] Installing final compiler
|
[EXTRA] Configuring final compiler
|
[EXTRA] Building final compiler
|
[EXTRA] Installing final compiler
|
[INFO ] Installing final compiler: done in 80.87s (at 06:41)
|
[INFO ] =================================================================
|
[INFO ] Installing libelf for the target
|
[EXTRA] Configuring libelf
|
[EXTRA] Building libelf
|
[EXTRA] Installing libelf
|
[INFO ] Installing libelf for the target: done in 4.05s (at 06:45)
|
[INFO ] =================================================================
|
[INFO ] Installing binutils for target
|
[EXTRA] Configuring binutils for target
|
[EXTRA] Building binutils' libraries (libiberty bfd) for target
|
[EXTRA] Installing binutils' libraries (libiberty bfd) for target
|
[INFO ] Installing binutils for target: done in 32.83s (at 07:18)
|
[INFO ] =================================================================
|
[INFO ] Installing dmalloc
|
[EXTRA] Configuring dmalloc
|
[EXTRA] Building dmalloc
|
[EXTRA] Installing dmalloc
|
[INFO ] Installing dmalloc: done in 6.54s (at 07:25)
|
[INFO ] =================================================================
|
[INFO ] Installing D.U.M.A.
|
[EXTRA] Copying sources
|
[EXTRA] Building libraries 'libduma.a libduma.so.0.0.0'
|
[EXTRA] Installing libraries 'libduma.a libduma.so.0.0.0'
|
[EXTRA] Installing shared library link
|
[EXTRA] Installing wrapper script
|
[INFO ] Installing D.U.M.A.: done in 0.73s (at 07:25)
|
[INFO ] =================================================================
|
[INFO ] Installing cross-gdb
|
[EXTRA] Configuring cross-gdb
|
[EXTRA] Building cross-gdb
|
[EXTRA] Installing cross-gdb
|
[INFO ] Installing cross-gdb: done in 48.04s (at 08:13)
|
[INFO ] =================================================================
|
[INFO ] Installing native gdb
|
[EXTRA] Building static target ncurses
|
[EXTRA] Building static target expat
|
[EXTRA] Configuring native gdb
|
[EXTRA] Building native gdb
|
[EXTRA] Installing native gdb
|
[EXTRA] Cleaning up ncurses
|
[INFO ] Installing native gdb: done in 93.79s (at 09:47)
|
[INFO ] =================================================================
|
[INFO ] Installing gdbserver
|
[EXTRA] Configuring gdbserver
|
[EXTRA] Building gdbserver
|
[EXTRA] Installing gdbserver
|
[INFO ] Installing gdbserver: done in 4.46s (at 09:52)
|
[INFO ] =================================================================
|
[INFO ] Installing ltrace
|
[EXTRA] Copying sources to build dir
|
[EXTRA] Configuring ltrace
|
[EXTRA] Building ltrace
|
[EXTRA] Installing ltrace
|
[INFO ] Installing ltrace: done in 2.87s (at 09:54)
|
[INFO ] =================================================================
|
[INFO ] Installing strace
|
[EXTRA] Configuring strace
|
[EXTRA] Building strace
|
[EXTRA] Installing strace
|
[INFO ] Installing strace: done in 12.05s (at 10:07)
|
[INFO ] =================================================================
|
[INFO ] Cleaning-up the toolchain's directory
|
[INFO ] Stripping all toolchain executables
|
[EXTRA] Installing the populate helper
|
[EXTRA] Installing a cross-ldd helper
|
[EXTRA] Creating toolchain aliases
|
[EXTRA] Removing access to the build system tools
|
[INFO ] Cleaning-up the toolchain's directory: done in 1.68s (at 10:08)
|
[INFO ] Build completed at 20120718.160301
|
[INFO ] (elapsed: 10:08.46)
|
[INFO ] Finishing installation (may take a few seconds)...
|
[10:08] / [guowenxue@centos6 crosstool]$
|
|
|
6£¬²âÊÔ½»²æ±àÒëÆ÷£º
|
[guowenxue@centos6 crosstool]$ /opt/crosstool/arm-arm926t-linux-gnueabi/bin/arm-arm926t-linux-gnueabi-gcc -v
|
Using built-in specs.
|
Target: arm-arm926t-linux-gnueabi
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Configured with: /opt/crosstool/.build/src/gcc-4.3.2/configure --build=x86_64-build_unknown-linux-gnu --host=x86_64-build_unknown-linux-gnu --target=arm-arm926t-linux-gnueabi --prefix=/opt/crosstool/arm-arm926t-linux-gnueabi --with-sysroot=/opt/crosstool/arm-arm926t-linux-gnueabi/arm-arm926t-linux-gnueabi/sysroot --enable-languages=c,c++ --with-arch=armv5te --with-cpu=arm926ej-s --with-tune=arm926ej-s --with-float=soft --with-pkgversion='crosstool-NG 1.15.3' --disable-sjlj-exceptions --enable-__cxa_atexit --disable-libmudflap --disable-libgomp --disable-libssp --with-gmp=/opt/crosstool/.build/arm-arm926t-linux-gnueabi/buildtools --with-mpfr=/opt/crosstool/.build/arm-arm926t-linux-gnueabi/buildtools --enable-threads=posix --enable-target-optspace --disable-nls --disable-multilib --with-local-prefix=/opt/crosstool/arm-arm926t-linux-gnueabi/arm-arm926t-linux-gnueabi/sysroot --enable-c99 --enable-long-long
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Thread model: posix
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gcc version 4.3.2 (crosstool-NG 1.15.3)
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[guowenxue@centos6 crosstool]$ /opt/crosstool/arm-arm926t-linux-gnueabi/bin/arm-arm926t-linux-gnueabi-gcc ~/.hello.c -o hello -static
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[guowenxue@centos6 crosstool]$ file hello
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hello: ELF 32-bit LSB executable, ARM, version 1 (SYSV), statically linked, for GNU/Linux 3.0.30, not stripped
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[guowenxue@centos6 crosstool]$ cp hello /tftp/
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²âÊÔhello³ÌÐòµÄAT91SAM9G20¿ª·¢°åÉÏÊÇÓÃBuildroot-2011.11+uClibcÖÆ×÷µÄ½»²æ±àÒëÆ÷×öµÄÎļþϵͳ£¬¶øÏÖÔڵĽ»²æ±àÒëÆ÷ÊÇcrosstool-ng+glibc×öµÄ£¬ÕâÀïµÄÁ½¸ö¿â²»Ò»Ñù£¬ËùÒÔÔÚ±àÒëhello.cµÄʱºòÒ»¶¨ÒªÓÃ"-static"Ñ¡ÏîÀ´¾²Ì¬±àÒë¡£
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ÏÖÔÚÔÚARM¿ª·¢°åÉÏÏÂÔØÕâ¸öhello³ÌÐò²¢×ö²âÊÔ£º
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~ >: tftp -gr hello 192.168.1.78
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hello 100% |*******************************| 583k 0:00:00 ETA
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~ >: chmod 755 hello
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~ >: ./hello
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Hello World!
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ÕâÑù£¬¿ÉÒÔ¿´µ½¸Õ²ÅÖÆ×÷µÄ½»²æ±àÒëÆ÷ÊÇOKµÄ¡£
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֮ǰ±àÒëÅöµ½µÄÎÊÌâ
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======================================
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1£¬È±ÉÙgcjÃüÁ
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[EXTRA] Preparing working directories
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[ERROR] Missing: 'x86_64-unknown-linux-gnu-gcj' or 'x86_64-unknown-linux-gnu-gcj' or 'gcj' : either needed!
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[00:01] / make[1]: ** [build] Error 1
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make: *** [build.4] ErÔÚror 2
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[guowenxue@centos6 crosstool]$ sudo yum install *gcj
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2£¬Ö®Ç°ÔÚ±àÒëgdbʱÒÀÀµlibexpat£¬µ«ÊÇÎҵķþÎñÆ÷ÉÏûÓа²×°Õâ¸ödev rpm£¬ËùÒÔÕâÀïʹÓÃyumÃüÁîÀ´°²×°£º
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[guowenxue@centos6 crosstool]$ sudo yum install expat*
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