RFR: 8046765 : (s) makefiles should use parameterized $(CP) and $(MV) rather than explicit commands

[Mike Duigou]

On Jul 13 2014, at 23:43 , David Holmes <David.Holmes at oracle.com> wrote:

> Hi Mike,
> 
> The changes from cp to $(CP) look fine, as do the couple of mv changes. As I think I said first time round I'm not sure why cp and mv are being singled out here

The static analysis tool we are using substitutes instrumented versions of mv and cp so that it can track files from their final location back to the source. It would seem that hashing would be a more reliable way to do this tracking but this is what the tool requires.

> (and I note that windows also does $(RM) but the others don't).

$RM was already defined in build.make. I don't see any changes in my patch involving RM. I do note that the RM expansion isn't used in most makefiles (sa.make was the one I noticed).

> 
> There seem to be a lot of spurious changes in the patch file that don't show up in the cdiffs. I assume whitespace has been added, which jcheck will reject (whitespace can't have been removed as jcheck would not have permitted it in the first place).

It is actually whitespace being removed as a consequence of my text editor trimming trailing whitespace. jcheck whitespace checks only specific file types (java|c|h|cpp|hpp)

> 
> Also please update all the Oracle copyright lines as needed (hotspot policy).

I shall do so.

With the copyright changes are we good to go?

> 
> Thanks,
> David
> 
> On 13/07/2014 3:19 AM, Mike Duigou wrote:
>> Hello all;
>> 
>> After further testing some additional changes were found to be needed to support building hotspot without configure support. There are a small number of additional changes in various buildtree.make and the windows build.make files to ensure that locations are defined for CP and MV commands. If there's a more appropriate location for these definitions please suggest it.
>> 
>> The patch is otherwise unchanged from the month ago version except for line number offset changes owing to other intervening changesets.
>> 
>> jbsbug: https://bugs.openjdk.java.net/browse/JDK-8046765
>> webrev: http://cr.openjdk.java.net/~mduigou/JDK-8046765/2/webrev/
>> 
>> Thanks!
>> 
>> Mike
>> 
>> On Jun 13 2014, at 12:43 , Mike Duigou <mike.duigou at oracle.com> wrote:
>> 
>>> Hello all;
>>> 
>>> This is a small changeset to the hotspot makefiles to have them use expansions of the $(CP) and $(MV) variables rather than explicit commands for all operations involving files in the deliverables. This changes is needed by static code analysis software which provides replacement cp and mv commands that track error reports in executables back to the source from which they are generated.
>>> 
>>> jbsbug: https://bugs.openjdk.java.net/browse/JDK-8046765
>>> webrev: http://cr.openjdk.java.net/~mduigou/JDK-8046765/0/webrev/
>>> 
>>> I've checked to make sure that patch doesn't change the build output on linux x64 and am currently checking on other platforms.
>>> 
>>> It is probably easier to review this change by looking at the patch than by looking at the file diffs.
>>> 
>>> Mike
>>> 
>>