On Sep 19, 2006, at 11:02 AM, Tim Ellison wrote:
Geir Magnusson Jr. wrote:
On Sep 19, 2006, at 8:37 AM, Ivan Volosyuk wrote:
[SNIP]
./java
Harmony Java launcher
Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache
Software
Foundation or its licensors, as applicable.
java [-vm:vmdll -vmdir:dir -D... [-X...]] [args]
./java: relocation error:
/home/ivan/svn/drlvm/trunk/build/lnx_ia32_gcc_debug/deploy/jre/
bin/libhyprt.so:
symbol hythrea
d_exit, version HYTHR_0.1 not defined in file libhythr.so with link
time reference
After I have commented out:
assert(saved_recursion<1);
Ok - this is semi-known behavior - the launcher now doesn't do
anything,
um, intelligent if it is invoked w/o an arguments, and clearly
there's
something unpleasant going on when it's just the launcher running,
probably with our version of the thread library.
I'm going to modify the launcher to pass "-help" into the VM when
it's
been named "java*" so that it behaves like the tools that come
with the
Sun's, BEA's and IBM's impelmentation.
As I mentioned before, you if you pass "-help" or "-showversion" in
the
creation of the IBM or Sun VM you will get an error, e.g.:
C:\temp\sample>test
JVMJ9VM007E Command-line option unrecognised: -help
Failed to create VM with rc=-6.
These command-line flags are handled by the launcher (not the VM).
I need to test that for Sun via a launcher, as just doing "java -
help" w/ the sun JRE works as expected - it prints help.
Since in Harmony there is not a 1:1 correlation of launcher to VM
implementation you will have to either print out generic help in the
launcher (bad) or go for an extension to the VM interface to get/print
help text.
How about passing -help to the VM? I don't grok the downside to
this. DRLVM works this way now. that way any localization issues
are up to the VM provider.
Having the launcher print out help based on the executable name would
be bad - it has to be some thing else.
I believe that you could write a useful generic implementation of
version info since VMs put that into system properties.
True - we could solve the version problem that way...
geir
Regards,
Tim
IOW, I think that users expect :
./java
. print help here
But we do need to hunt down why it exits so ungracefully - this is a
good test case showing problems since it's so simple.
geir
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Tim Ellison ([EMAIL PROTECTED])
IBM Java technology centre, UK.
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