b31 multiple build failures on x86 Linux

[Kelly O'Hair]

Jeffrey Baker wrote:
> On Tue, Jul 22, 2008 at 1:53 PM, Kelly O'Hair <Kelly.Ohair at sun.com> wrote:
>> Jeffrey Baker wrote:
>>> What is the officially blessed compiler?  This one appears to be gcc
>>> 4.2.3, but I have numerous other revisions of gcc kicking around,
>>> including 4.1 and 4.2.
>> You won't like this, but it's 3.2.
> 
> That is a bit inconvenient.  Ubuntu provides 3.3 and 3.4, but not 3.2.
>  Nevertheless, I'm sure I can find the source somewhere.

It sounds like 4.2 might have problems, you might just try 4.1.
We are trying to upgrade our official Linux systems, but it's taking
longer than expected.

> 
>> Treat hotspot separate, build it the way you want, and plug it into
>> the jdk image you want to use. Your builds will be faster and you
>> can avoid building lots of jdk code you don't need to repeatedly rebuild.
> 
> In the beginning, I could not get anything to work aside from the top
> level build system.  Now I appear to be suitably equipped to type
> 'make' in hotspot/make, which is an improvement.  Still, 'make
> profiled' is not valid, and 'make help' does not offer any advice on
> the topic.  I am taunted by the 'profiled' target in the linux
> Makefile!

The top level hotspot/make/Makefile was originally written by me.
The other makefiles have a more colorful history. ;^)
Try mimic'ing the use of the "jvmg" target in the hotspot/make/Makefile,
I'm sure you could create a set of rules that would result in doing
a "profiled" build, but you are on your own with this.
I only added selected build targets to the top level Makefile,
which wasn't really for developers as much as for the overall builds
and release engineering.

> 
>>> What is the official way to build openjdk with profiling?
>> As far as I know, there is none. It's just not something that is done
>> much anymore.
> 
> Which explains at least the difficulty of doing so ...
> 
>> When we are doing profiling we use tools like the Sun Studio Analyzer
>> or the NetBeans profiler, where we really don't need to build the image
>> in any special way. Sun Studio 12 is available on Linux, with the Analyzer,
>> but I have never used it.
> 
> That's an idea.  I think I might try SS12 for a bit.

Have fun.

-kto

> 
> -jwb