Debug JVM with gdb

Question

I would like to step through the JVM native code with GDB. Currently this only works by first starting the JVM and then attaching gdb to the java process. This makes it impossible to look at the bytecode parsing code.
If I start the a JVM (jdk 6u18) from within gdb I get the following error:
silasdm@sdmpc ~/Work/JVM $ gdb ./TEST/build-debug/bin/java
GNU gdb 6.8
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-pc-linux-gnu"...
(gdb) set args Test
(gdb) run
Starting program: /home/silasdm/Devel/JVM/TEST/build-debug/bin/java Test
[Thread debugging using libthread_db enabled]
[New process 2216]
Executing new program: /home/silasdm/Devel/JVM/TEST/build-debug/bin/java
warning: Cannot initialize thread debugging library: generic error
[New process 2216]
[Thread debugging using libthread_db enabled]
Segmentation faultHow can I work around or fix this issue?

Answer 1

SahibBommelig wrote:-ggdb should go to CFLAGS only (althouth it won't do harm probably in LDFLAGS). Also remove -s (which will strip debug symbols) from the LDFLAGS.
Oh, I am so fool,
root@debian:/tools/hdparm-9.43#ld --help
  -s, --strip-all             Strip all symbols
I removed the -s from LDFLAGS, it finally does the work !
Thank you