b31 multiple build failures on x86 Linux

[Jeffrey Baker]

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.

> 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!

>> 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.

-jwb