示例配置:
Paths and misc options [*] Debug crosstool-NG [*] Save intermediate steps
Save intermediate steps的help的说明为:
┌────────────────────────── Save intermediate steps ───────────────────────────┐ │ CT_DEBUG_CT_SAVE_STEPS: │ │ │ │ If you say 'y' here, then you will be able to restart crosstool-NG at │ │ any step. │ │ │ │ It is not currently possible to restart at any of the debug facilities. │ │ They are treated as a whole. │ │ │ │ To get the full list os steps, run: ct-ng list-steps │ │ │ │ Symbol: DEBUG_CT_SAVE_STEPS [=y] │ │ Type : boolean │ │ Prompt: Save intermediate steps │ │ Defined at config/global/ct-behave.in:79 │ │ Depends on: DEBUG_CT [=y] │ │ Location: │ │ -> Paths and misc options │ │ -> Debug crosstool-NG (DEBUG_CT [=y]) │
此处,先要选上:Debug crosstool-NG
表示,使用crosstoo-ng的调试方面的功能
再去选上:Save intermediate steps
意思是:
编译完毕每一步之后,都会保存对应的状态
如此,就可以实现对应的,从之前出错的步骤恢复而继续编译的效果了。
当然,实现此效果的前提是,你参考之前的第 3.1.2 节 “用ct-ng list-steps查看本身的build过程分成哪几步”,而搞清楚了,crosstool-ng的编译,其本身分了哪些步骤。
然后直到自己是在哪一步出的错,然后才可以实现回复出错的步骤,而继续编译。
总的逻辑是:
找到之前编译,最后成功的那一步(last successful step)。
然后去执行:
ct-ng last_successful_step+
就可以继续恢复继续编译了。
例 3.1. 从出错的那一步恢复重新继续编译
比如,我之前折腾:
期间,当时出错的输出信息是:
================================================================= [INFO ] Installing MPC for host [EXTRA] Configuring MPC [EXTRA] Building MPC [EXTRA] Installing MPC [INFO ] Installing MPC for host: done in 182.22s (at 27:10) [EXTRA] Saving state to restart at step 'binutils_for_host'... [INFO ] ================================================================= [INFO ] Installing binutils for host [EXTRA] Configuring binutils [ERROR] configure: error: cannot create configure.lineno; rerun with a POSIX shell [ERROR] [ERROR] >> [ERROR] >> Build failed in step 'Installing binutils for host' [ERROR] >> called in step '(top-level)' [ERROR] >> [ERROR] >> Error happened in: CT_DoExecLog[scripts/functions@257] [ERROR] >> called from: do_binutils_backend[scripts/build/binutils/binutils.sh@205] [ERROR] >> called from: do_binutils_for_host[scripts/build/binutils/binutils.sh@92] [ERROR] >> called from: main[scripts/crosstool-NG.sh@632] Current command: 'CFLAGS=-O2 -g -pipe ' 'CXXFLAGS=-O2 -g -pipe ' 'LDFLAGS= ' '/home/CLi/develop/crosstool-ng/crosstool-ng-1.18.0_build/.build/src/binutils-2.22/configure' '--build=i686-build_pc-cygwin' '--host=i686-build_pc-cygwin' '--target=arm-xscale-linux-gnueabi' '--prefix=/home/CLi/develop/crosstool-ng/x-tools/arm-xscale-linux-gnueabi' '--disable-werror' '--enable-ld=yes' '--enable-gold=no' '--with-pkgversion=crosstool-NG 1.18.0' '--disable-multilib' '--disable-nls' '--with-float=softfp' '--with-sysroot=/home/CLi/develop/crosstool-ng/x-tools/arm-xscale-linux-gnueabi/arm-xscale-linux-gnueabi/sysroot' exited with error code: 1 Please fix it up and finish by exiting the shell with one of these values: 1 fixed, continue with next build command 2 repeat this build command 3 abort build ct-ng:~/develop/crosstool-ng/crosstool-ng-1.18.0_build/.build/arm-xscale-linux-gnueabi/build/build-binutils-host-i686-build_pc-cygwin>
此处,我们能看到的是,在当前的:
[INFO ] Installing binutils for host
而出错了,而对应的,在此之前的,最后一个正确编译的阶段,是对应着有输出:
[EXTRA] Saving state to restart at step 'binutils_for_host'...
的那一步,即:
binutils_for_host
此时,你就可以用:
ct-ng binutils_for_host+
而实现:
(给定,之前最后正常执行的那一步(last successful step),往后,)从上述出错的那一步,继续正常编译的效果了。
即,所谓的:restore from fail step
RESTART=step的参数估计也可以实现同样的从错误那步恢复继续编译的效果 | |
---|---|
从之前的第 3.1.1 节 “用ct-ng help查看所拥有的功能”中可以看出 估计在build的时候,指定对应的RESTART=step ct-ng build RESTART=last_successful_step 应该也可以实现类似的效果的。 有空的话,可以去试试。 |