一旦发生错误,是否有可能加快crosstool-ng构建？

Question

我正在使用crosstool-ng为beagleboard-xm构建一个tolchain.构建以下面描述的方式进行:

[INFO] =============================================== ================== [INFO]检索所需的工具链组件'tarballs [INFO]检索所需的工具链组件'tarballs:在0.51s完成(00:08)[INFO] ================================================== =============== [INFO]提取和修补工具链组件[INFO]提取和修补工具链组件:在7.91s完成(在00:16)[INFO] ===== ================================================== ========== [INFO]安装GMP [INFO]安装GMP:140.48s完成(02:36)[INFO] ================ ================================================= [ INFO]安装MPFR [INFO]安装MPFR:在36.01s完成(03:13)[INFO] =========================== ====================================== [INFO]安装PPL..

`

现在,经过50分钟的编译,它打破了一个错误:

[错误] configure:错误:expat缺失或无法使用"

我安装了所需的软件包(在Ubuntu 10.04中),但错误不是问题.之前我能够到达成功安装编译器的步骤,直到那时没有错误.我想知道是否有办法让工具跳过以前成功的步骤,节省时间？甚至可以用crosstool-ng的方式工作吗？

Answer 1

是的,这是可能的.像这样运行ct-ng

CT_DEBUG_CT_SAVE_STEPS = 1 ct-ng build

在特定步骤崩溃后,只需找到生成的列表中的步骤

ct-ng list-steps

此时您可以通过运行恢复构建

RESTART = libc_start_files ct-ng build

Answer 2

是的,目前的crosstool-ng支持此功能.

1. 在menuconfig中启用此功能

为ct-ng menuconfig,配置Paths and misc options像这样

????????????????????? Paths and misc options ?????????????????????
[*] Debug crosstool-NG
[ ]   Pause between every steps
[*]   Save intermediate steps
[*]     gzip saved states
[*]   Interactive shell on failed commands

2.在构建时,对于每个成功完成的步骤,您将看到如下内容:

Saving state to restart at step 'xxx'...

3.失败后,修复后再使用ct-ng LAST_SUCCESSFUL_STETP_NAME+继续构建

我的例子:

CLi@PC-CLI-1 ~/develop/crosstool-ng/crosstool-ng-1.18.0_build
$ ct-ng list-steps
Available build steps, in order:
  - libc_check_config
  - companion_libs_for_build
  - binutils_for_build
  - companion_libs_for_host
  - binutils_for_host
  - cc_core_pass_1
  - kernel_headers
  - libc_start_files
  - cc_core_pass_2
  - libc
  - cc_for_build
  - cc_for_host
  - libelf_for_target
  - binutils_for_target
  - debug
  - test_suite
  - finish
Use "<step>"p>" as action to execute only that step"+<step>"lt;step>" as action to execute up to tha"<step>+"se "<step>+" as action to execute from that step onward.

CLi@PC-CLI-1 ~/develop/crosstool-ng/crosstool-ng-1.18.0_build
$ ct-ng libc+
[INFO ]  Performing some trivial sanity checks
[INFO ]  Build started 20130801.120248
[INFO ]  Building environ'libc'ariables
[EXTRA]  Preparing working directories
[EXTRA]  Restoring state at step 'libc', as requested.
[INFO ]  =================================================================
[INFO ]  Installing C library
[EXTRA]    Configuring C library
[EXTRA]    Building C library
[01:55] /

有关更多解释,请参阅我的帖子:针对xscale的crosstool-ng构建