build - 一旦发生错误，是否可以加速 crosstool-ng 构建？

Question

我正在使用 crosstool-ng 为 beagleboard-xm 构建一个 tolchain。构建以如下方式进行:

[INFO ] ================================================================= [INFO ] Retrieving needed toolchain components' tarballs [INFO ] Retrieving needed toolchain components' tarballs: done in 0.51s (at 00:08) [INFO ] ================================================================= [INFO ] Extracting and patching toolchain components [INFO ] Extracting and patching toolchain components: done in 7.91s (at 00:16) [INFO ] ================================================================= [INFO ] Installing GMP [INFO ] Installing GMP: done in 140.48s (at 02:36) [INFO ] ================================================================= [INFO ] Installing MPFR [INFO ] Installing MPFR: done in 36.01s (at 03:13) [INFO ] ================================================================= [INFO ] Installing PPL . .

`

现在，经过 50 分钟的编译，它因错误而中断:

[ERROR] configure: error: expat is missing or unusable"

我安装了所需的软件包(在 Ubuntu 10.04 中)，但该错误不是问题。早些时候，我能够进入成功安装编译器的步骤，并且在此之前没有错误。我想知道是否有办法让该工具跳过以前成功的步骤，从而节省时间？ crosstool-ng 的工作方式是否可行？

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

在某个步骤崩溃后，只需在生成的列表中找到该步骤

ct-ng list-steps

此时您可以通过运行恢复构建

RESTART=libc_start_files ct-ng build