用于调试makefile的工具

Question

我有一个很大的遗留代码库,包含非常复杂的makefile,有很多变量.有时我需要改变它们,我发现很难弄清楚为什么改变不按照我的预期运作.我想找到的是一个基本上对"make"过程进行逐步调试的工具,我会给它一个目录,我将能够在不同的点看到不同变量的值.处理.没有任何调试标志似乎能告诉我我想要什么,虽然我可能会遗漏一些东西.有谁知道这样做的方法？

Answer 1

你有没有看过跑步make -n和make -np大佬的输出make -nd？

你使用的是最新版本gmake吗？

你有没有看过关于调试Makefiles的免费章节,可以在O'Reilly的网站上找到他们出色的书"使用GNU Make管理项目"(亚马逊链接).

Answer 2

我相信翻拍是你想要的.

从主页:

remake是GNU make实用程序的修补和现代化版本,它增加了改进的错误报告,以易于理解的方式跟踪执行的能力以及调试器.

它有类似gdb的界面,并且在(x)emacs中受mdb-mode支持,这意味着破坏,手表等.如果你不喜欢(x)emacs ,那就是 DDD

Answer 3

从make命令行选项的手册页:

-n, --just-print, --dry-run, --recon  
Print the commands that would be executed, but do not execute them.  

-d  Print debugging information in addition to normal processing.  
The debugging information says  
which files are being considered for remaking,  
which file-times are being compared and with what results,  
which files actually need  to  be  remade,  
which implicit  rules are considered and which are applied---  
everything interesting about how make decides what to do.  

--debug[=FLAGS] Print debugging information in addition to normal processing.  
If the FLAGS are omitted, then the behaviour is the same as if -d was specified.  
FLAGS may be:  
'a' for all debugging output same as using -d,  
'b' for basic debugging,  
'v' for more verbose basic debugging,  
'i' for showing implicit rules,  
'j' for details on invocation of commands, and  
'm' for debugging while remaking makefiles.  

Answer 4

我不知道有任何特定的标志可以完全满足您的要求，但是

--打印数据库

听起来它可能有用。