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Bug ID: 7022473 JDK7 still runs /etc/prtconf to find memory size
7022473 : JDK7 still runs /etc/prtconf to find memory size

Details
Type:
Bug
Submit Date:
2011-02-25
Status:
Closed
Updated Date:
2011-05-18
Project Name:
JDK
Resolved Date:
2011-05-18
Component:
infrastructure
OS:
solaris_nevada
Sub-Component:
build
CPU:
generic
Priority:
P3
Resolution:
Fixed
Affected Versions:
7
Fixed Versions:
7

Related Reports
Backport:
JDK-2206979 - JDK7 still runs /etc/prtconf to find memory size
Relates:
JDK-6412469 - Investigate optimum -Xmx -Xms settings for build time improvements

Sub Tasks

Description
(If I've filed this in the wrong sub-category, please adjust accordingly).

CR #7019375 will cleanup a load of old binary exectable sym links
that are in /etc for the Solaris 11 GA release.

Alan Coopersmith sent me the following comment:

  "Noticed someone on openindiana IRC complaining about openjdk failing to build
   in a zone because it couldn't run /etc/prtconf:

   http://www.google.com/codesearch?as_q=%2Fetc%2Fprtconf&as_package=openjdk

   Looks like a bug will need to be filed if you're really nuking all the bins in
   /etc."

Here is that bug.

Comments
EVALUATION

While I would agree the function calls to sysconf() is the correct method for a dynamic query within a program, from the standpoint of a makefile, prtconf is still acceptable for what is needed.
2011-03-16 
PUBLIC COMMENTS

Note also that prtconf output is not intended for parsing.  A better interface for retrieving this information should be found or created.
2011-03-02 
PUBLIC COMMENTS

It looks like the right interface is
sysconf(_SC_PAGESIZE) * sysconf(_SC_PHYS_PAGES)
2011-03-02 
SUGGESTED FIX

Adjust the JDK7 code to use /usr/sbin/prtconf instead.
2011-02-25 
EVALUATION

This seems to be more of a build issue than an install issue.
2011-02-25 
SUGGESTED FIX

prtconf has been in /usr/sbin since at least Solaris 8, don't need to code up support for /etc/prtconf.   Dependancy introduced in JDK 6 b82 (6412469)

jdk/make/common/shared/Platform.gmk

151c151
<   MB_OF_MEMORY=$(shell /etc/prtconf | fgrep 'Memory size:' | expand | cut -d' ' -f3)
---
> >   MB_OF_MEMORY=$(shell /usr/sbin/prtconf | fgrep 'Memory size:' | expand | cut -d' ' -f3)
2011-02-25


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