相关旧帖：【总结】crosstool-ng使用心得和注意事项
在之前配置完毕crosstool-ng后，就可以去编译了。
ct-ng build
然后，如果顺利的话，过一定的时间，你就可以编译完成，得到对应的交叉编译器了。
![[提示]](http://www.crifan.com/files/res/docbook/images/tip.png) | ct-ng build总共所耗时间 |
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此处crosstool-ng的编译总体花费时间，取决于你的总体配置，机器性能等因素。 比较老的一些电脑，估计会在3,4个小时，甚至更多的时间。 目前多数电脑的性能，平均在1到2个小时前后。 比如，我之前的一次编译： 【记录】在Ubuntu下用crosstool-ng编译xscale的交叉工具链 就花费了72分钟。 |
例 4.1. 正常输出的log信息
此处，贴上，我之前：
【记录】在Ubuntu下用crosstool-ng编译xscale的交叉工具链
的成功编译的输出的内容（去除之前错误，合并正常的输出后的结果）：
crifan@ubuntu:~/develop/crosstool-ng/crosstool-ng-1.18.0_build$ ct-ng build
[INFO ] Performing some trivial sanity checks
[INFO ] Build started 20130807.235739
[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 = i686-pc-linux-gnu
[EXTRA] host = i686-pc-linux-gnu
[EXTRA] target = arm-xscale-linux-gnueabi
[EXTRA] Dumping internal crosstool-NG configuration: done in 0.09s (at 00:02)
[INFO ] =================================================================
[INFO ] Retrieving needed toolchain components' tarballs
[EXTRA] Using 'linux-custom' from custom location
[INFO ] Retrieving needed toolchain components' tarballs: done in 0.30s (at 00:02)
[INFO ] =================================================================
[INFO ] Extracting and patching toolchain components
[EXTRA] Extracting 'linux-custom'
[EXTRA] Extracting 'gmp-5.0.2'
[EXTRA] Patching 'gmp-5.0.2'
[EXTRA] Extracting 'mpfr-3.1.0'
[EXTRA] Patching 'mpfr-3.1.0'
[EXTRA] Extracting 'mpc-0.9'
[EXTRA] Patching 'mpc-0.9'
[EXTRA] Extracting 'libelf-0.8.13'
[EXTRA] Patching 'libelf-0.8.13'
[EXTRA] Extracting 'binutils-2.22'
[EXTRA] Patching 'binutils-2.22'
[EXTRA] Extracting 'gcc-4.6.0'
[EXTRA] Patching 'gcc-4.6.0'
[EXTRA] Extracting 'glibc-2.9'
[EXTRA] Patching 'glibc-2.9'
[EXTRA] Extracting 'glibc-ports-2.9'
[EXTRA] Patching 'glibc-ports-2.9'
[EXTRA] Extracting 'dmalloc-5.5.2'
[EXTRA] Patching 'dmalloc-5.5.2'
[EXTRA] Extracting 'gdb-6.8a'
[EXTRA] Patching 'gdb-6.8a'
[EXTRA] Extracting 'ncurses-5.9'
[EXTRA] Patching 'ncurses-5.9'
[EXTRA] Extracting 'expat-2.1.0'
[EXTRA] Patching 'expat-2.1.0'
[EXTRA] Extracting 'ltrace-0.5.3'
[EXTRA] Patching 'ltrace-0.5.3'
[EXTRA] Extracting 'strace-4.5.19'
[EXTRA] Patching 'strace-4.5.19'
[INFO ] Extracting and patching toolchain components: done in 89.30s (at 01:32)
[EXTRA] Saving state to restart at step 'libc_check_config'...
[EXTRA] Saving state to restart at step 'companion_libs_for_build'...
[EXTRA] Saving state to restart at step 'binutils_for_build'...
[EXTRA] Saving state to restart at step 'companion_libs_for_host'...
[INFO ] =================================================================
[INFO ] Installing GMP for host
[EXTRA] Configuring GMP
[EXTRA] Building GMP
[EXTRA] Installing GMP
[INFO ] Installing GMP for host: done in 50.61s (at 02:23)
[INFO ] =================================================================
[INFO ] Installing MPFR for host
[EXTRA] Configuring MPFR
[EXTRA] Building MPFR
[EXTRA] Installing MPFR
[INFO ] Installing MPFR for host: done in 21.73s (at 02:45)
[INFO ] =================================================================
[INFO ] Installing MPC for host
[EXTRA] Configuring MPC
[EXTRA] Building MPC
[EXTRA] Installing MPC
[INFO ] Installing MPC for host: done in 8.38s (at 02:53)
[EXTRA] Saving state to restart at step 'binutils_for_host'...
[INFO ] =================================================================
[INFO ] Installing binutils for host
[EXTRA] Configuring binutils
[EXTRA] Building binutils
[EXTRA] Installing binutils
[INFO ] Installing binutils for host: done in 71.16s (at 04:05)
[EXTRA] Saving state to restart at step 'cc_core_pass_1'...
[INFO ] =================================================================
[INFO ] Installing pass-1 core C compiler
[EXTRA] Configuring gcc
[EXTRA] Building gcc
...
[INFO ] =================================================================
[INFO ] Installing kernel headers
[EXTRA] Installing kernel headers
...
[INFO ] Installing kernel headers: done in 972.34s (at 39:34)
[EXTRA] Saving state to restart at step 'libc_start_files'...
[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 23.14s (at 40:02)
[EXTRA] Saving state to restart at step 'cc_core_pass_2'...
[INFO ] =================================================================
[INFO ] Installing pass-2 core C compiler
[EXTRA] Configuring gcc
[EXTRA] Building gcc
[EXTRA] Installing gcc
[INFO ] Installing pass-2 core C compiler: done in 297.35s (at 45:04)
[EXTRA] Saving state to restart at step 'libc'...
[INFO ] =================================================================
[INFO ] Installing C library
[EXTRA] Configuring C library
[EXTRA] Building C library
[EXTRA] Installing C library
[INFO ] Installing C library: done in 286.37s (at 49:56)
[EXTRA] Saving state to restart at step 'cc_for_build'...
[EXTRA] Saving state to restart at step 'cc_for_host'...
[INFO ] =================================================================
[INFO ] Installing final compiler
[EXTRA] Configuring gcc
[EXTRA] Building gcc
[EXTRA] Installing gcc
[INFO ] Installing final compiler: done in 377.10s (at 56:25)
[EXTRA] Saving state to restart at step 'libelf_for_target'...
[INFO ] =================================================================
[INFO ] Installing libelf for the target
[EXTRA] Configuring libelf
[EXTRA] Building libelf
[EXTRA] Installing libelf
[INFO ] Installing libelf for the target: done in 3.99s (at 56:42)
[EXTRA] Saving state to restart at step 'binutils_for_target'...
[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 44.91s (at 57:40)
[EXTRA] Saving state to restart at step 'debug'...
[INFO ] =================================================================
[INFO ] Installing dmalloc
[EXTRA] Configuring dmalloc
[EXTRA] Building dmalloc
[EXTRA] Installing dmalloc
[INFO ] Installing dmalloc: done in 6.77s (at 57:59)
[INFO ] =================================================================
[INFO ] Installing cross-gdb
[EXTRA] Configuring cross-gdb
[EXTRA] Building cross-gdb
...
[INFO ] Installing cross-gdb: done in 687.38s (at 69:26)
[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
[INFO ] Installing native gdb: done in 140.70s (at 71:47)
[INFO ] =================================================================
[INFO ] Installing gdbserver
[EXTRA] Configuring gdbserver
[EXTRA] Building gdbserver
[EXTRA] Installing gdbserver
[INFO ] Installing gdbserver: done in 4.65s (at 71:52)
[INFO ] =================================================================
[INFO ] Installing ltrace
[EXTRA] Copying sources to build dir
[EXTRA] Configuring ltrace
[EXTRA] Building ltrace
[EXTRA] Installing ltrace
[INFO ] Installing ltrace: done in 2.37s (at 71:54)
[INFO ] =================================================================
[INFO ] Installing strace
[EXTRA] Configuring strace
[EXTRA] Building strace
[EXTRA] Installing strace
[INFO ] Installing strace: done in 9.33s (at 72:04)
[EXTRA] Saving state to restart at step 'test_suite'...
[EXTRA] Saving state to restart at step 'finish'...
[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
[EXTRA] Removing installed documentation
[INFO ] Cleaning-up the toolchain's directory: done in 2.03s (at 72:35)
[INFO ] Build completed at 20130808.011013
[INFO ] (elapsed: 72:34.05)
[INFO ] Finishing installation (may take a few seconds)...
[72:35] / crifan@ubuntu:~/develop/crosstool-ng/crosstool-ng-1.18.0_build$
| 想要在编译的时候输出所有的信息 |
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根据之前第 3.1.1 节 “用ct-ng help查看所拥有的功能”中的介绍，通过加上V=2参数，可以实现，即输入，默认就输出的，人类可读的信息，也输出内部执行的那些命令。 如果有需求的话，为了编译出错时，可以直接方便的看到所正在执行的命令，是哪个出错了。 （就不用去看对应的，当前文件夹下面的build.log了） 那么可以自己去试试，加上V=2的效果，即： ct-ng build V=2 的效果。 |
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| 3.3.2.2. 交叉编译相关的核心参数 |  | 第 5 章 crosstool-ng常见问题及解决办法 |
