Starting from the dynamic loader

[Jost Boekemeier <jost2345 at yahoo dot de>]

Hi,

[I hope this is not a FAQ]

I am currently trying to create an apache module which uses (a library
which in turn uses) libgcj.  Interestingly gcj aborts() because it is
not yet initialized: _Jv_createJavaVM hasn't been called at this early
stage (see stack trace below).

Can somebody please explain where frame_dummy() comes from; which
component generates this?

I think I should start the JVM somewhere in the libraries _init()
method, or is there a better way to handle this?  



#0  0xffffe002 in ?? ()
#1  0x42028a73 in abort () from /lib/tls/libc.so.6
#2  0x40dbb45a in _Jv_Abort(char const*, char const*, int, char const*)
(
    message=0x0) at prims.cc:317
#3  0x40ddd88b in _Jv_RegisterClassHookDefault (klass=0xbfffc0b0)
    at java/lang/natClassLoader.cc:428
#4  0x40ddd76b in _Jv_RegisterClasses (classes=0xbfffc0cc)
    at java/lang/natClassLoader.cc:397
#5  0x40404ece in frame_dummy ()
   from /home/src/test/httpd/dist/lib/libmy_dsotest.so
#6  0x40404da8 in _init ()
   from /home/src/test/httpd/dist/lib/libmy_dsotest.so
#7  0x4000c4b1 in _dl_init_internal () from /lib/ld-linux.so.2
#8  0x4210dfb2 in dl_open_worker () from /lib/tls/libc.so.6
#9  0x4000c266 in _dl_catch_error_internal () from /lib/ld-linux.so.2
#10 0x4210da49 in _dl_open () from /lib/tls/libc.so.6
#11 0x401a6eeb in dlopen_doit () from /lib/libdl.so.2
#12 0x4000c266 in _dl_catch_error_internal () from /lib/ld-linux.so.2
#13 0x401a6316 in _dlerror_run () from /lib/libdl.so.2
#14 0x401a6e92 in dlopen@GLIBC_2.0 () from /lib/libdl.so.2
#15 0x4013dc5d in apr_dso_load (res_handle=0x0, path=0x0,
pool=0x80ba7b8)
    at dso.c:169
#16 0x0807b838 in load_module (cmd=0xbfffe980, dummy=0x0,
---Type <return> to continue, or q <return> to quit---q



Jost