RFR: JDK-8148655 LOG=cmdlines and other build-infra fixes

[Erik Joelsson]

On 2016-02-01 22:36, Magnus Ihse Bursie wrote:
> On 2016-02-01 16:01, Erik Joelsson wrote:
>> Hello,
>>
>> InitSupport.gmk:
>> The comment still refers to ",nofile".
>
> I'll fix.
>
>>
>> I would probably have made an effort to replace "$(ECHO) $(call 
>> ShellQuote, $2) > $(strip $1).cmdline &&" with a call to WriteFile.
>
> I did think about that, yes. However, I didn't figure out a 
> satisfactory way to solve it. The problem is that WriteFile, on GNU 
> Make < 4, results in a $(shell) call, which seemed worse than a 
> chained call to echo, when we already is in a shell command line in a 
> recipe. I wasn't too keen on creating a WriteFileInRecipe version 
> either. So I couldn't figure out a way to do that that I was happy 
> with. But I'm open to suggestions (or even better, working code :-)).
>
I realize a $(shell) call isn't ideal, but the performance difference 
will most likely only be noticeable on Windows, where we know we have 
$(file) anyway.

/Erik

> /Magnus
>
>>
>> /Erik
>>
>> On 2016-01-30 11:27, Magnus Ihse Bursie wrote:
>>> This is yet another collection of fixes from the build-infra hotspot 
>>> project forest that has a stand-alone value.
>>>
>>> The most important change is the support of a new log option, 
>>> cmdlines. This is, like the old "nofile", an option that can be 
>>> added to a log level, e.g. "LOG=info,cmdlines" or used standalone 
>>> "LOG=cmdlines" (in which case the log level stays at default). With 
>>> this in place, the command line of "important" commands are printed. 
>>> Examples of "important" commands are compiler and linker calls. 
>>> Examples of "non-important" commands are "mkdir" or "cat". Note that 
>>> at this point, not all "important" calls are identified, typically 
>>> in esoteric stuff like gensrc.
>>>
>>> Apart from this, a few other changes are also included:
>>> * Allow DEBUG_SYMBOLS to be individually turned off (follow up to 
>>> JDK-8145596)
>>> * Support .S assembly files
>>> * Expose USERNAME outside configure
>>> * Fix broken indentation
>>>
>>> Bug: https://bugs.openjdk.java.net/browse/JDK-8148655
>>> WebRev: 
>>> http://cr.openjdk.java.net/~ihse/JDK-8148655-LOG-cmdlines-and-misc-fixes/webrev.01
>>>
>>> /Magnus
>>
>