3 messages in org.freebsd.freebsd-javaRe: FW: FreshPorts daily notification| From | Sent On | Attachments |
|---|---|---|
| K.J....@kpn.com | Jul 1, 2002 1:37 am | |
| Marc van Kempen | Jul 1, 2002 5:55 am | |
| Greg Lewis | Jul 1, 2002 10:48 am |
| Subject: | Re: FW: FreshPorts daily notification | |
|---|---|---|
| From: | Greg Lewis (gle...@eyesbeyond.com) | |
| Date: | Jul 1, 2002 10:48:02 am | |
| List: | org.freebsd.freebsd-java | |
On Mon, Jul 01, 2002 at 10:38:01AM +0200, K.J....@kpn.com wrote:
The message below just showed up on Freshports. Could someone elaborate on why the build process gets confused?
http://www.FreshPorts.org/java/jdk13/ Add a pre-build target to check for a setting of WRKDIRPREFIX which will result in the InvokerGen.java target failing. The bootstrapping Linux JDK will confuse itself if WRKDIRPREFIX also exists in /compat/linux as a symbolic link to the directory in the standard FreeBSD hierarchy.
Much appreciated sleuth work by: dillon 26 Jun 2002 - glewis
I'll attempt to explain this, although Matt Dillon was the one who did all the detective work. Basically, the Linux JDK is trying to absolutely resolve the path of the file and the symlinks confuse it. This is partly due to how emulation works.
To give a concrete example. If there is a file in /usr/tmp that its trying to compile and /compat/linux/usr/tmp is a symbolic link to /usr/tmp it will basically get into a loop like this:
Resolve /usr/tmp -> Emulation layer checks in /compat/linux first, finds /usr/tmp there. -> Resolve /compat/linux/usr/tmp. -> /compat/linux/usr/tmp is a symbolic link to /usr/tmp. -> Back to top of loop.
Matt has a nice truss trace that shows the syscalls happening for this instance. Eventually the JDK gives up and errors.
Let me know if that isn't clear and I'll ask Matt if I can forward the explanation he sent to me.
The commit was to try and stop this happening at least some of the time (its not perfect, but should catch the common cases).
-- Greg Lewis Email : gle...@eyesbeyond.com Eyes Beyond Web : http://www.eyesbeyond.com Information Technology
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