open jdk debug options

[Cong Wang]

Hi all:
   I am trying to modify some part of the hotspot runtime interpreter
and I would like to debug that using either dbx or gdb. I have compile
the file using the following options:

ALT_BINARY_PLUGS_PATH=/scratch/wang/openjdk-binary-plugs
ALT_FREETYPE_LIB_PATH=/usr/local/lib
ALT_FREETYPE_HEADERS_PATH=/usr/local/include
ALT_CUPS_HEADERS_PATH=/scratch/wang/cups-1.3.8
ANT_HOME=/usr/sfw
ALT_OUTPUTDIR=/scratch/wang/java_tm_7
DEV_ONLY=true
DEBUG=true

    I am not able to use dbx to debug java in the ALT_OUTPUTDIR/bin
directory. I would like to set a break point at
hotspot/src/cpu/sparc/vm/assembler_sparc.cpp
MacroAssembler::compiler_lock_object function. I have tried to use the
dbx pathmap command but it doesn't seem to help dbx to locate the
source file or the function definition.
   Any suggestions? Thanks in advance for any comment.

-- 
Regards
James Wang