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Re: seg fault on startup


From the shared library version:

Core was generated by `/mnt/ide/Foo.shared.debug'.
Program terminated with signal 11, Segmentation fault.
#0 java.lang.NullPointerException.NullPointerException() (this=@300763f0)
at /disk1/xtool/crosstool-0.43/build/powerpc-860-linux-gnu/gcc-4.1.2-glibc-2.3.3/gcc-4.1.2/libjava/classpath/java/lang/NullPointerException.java:70
70 /disk1/xtool/crosstool-0.43/build/powerpc-860-linux-gnu/gcc-4.1.2-glibc-2.3.3/gcc-4.1.2/libjava/classpath/java/lang/NullPointerException.java: No such file or directory.
in /disk1/xtool/crosstool-0.43/build/powerpc-860-linux-gnu/gcc-4.1.2-glibc-2.3.3/gcc-4.1.2/libjava/classpath/java/lang/NullPointerException.java
(gdb) bt
#0 java.lang.NullPointerException.NullPointerException() (this=@300763f0)
at /disk1/xtool/crosstool-0.43/build/powerpc-860-linux-gnu/gcc-4.1.2-glibc-2.3.3/gcc-4.1.2/libjava/classpath/java/lang/NullPointerException.java:70
#1 0x0f1e6874 in catch_segv (_sc=@7fc00570) at /disk1/xtool/crosstool-0.43/build/powerpc-860-linux-gnu/gcc-4.1.2-glibc-2.3.3/gcc-4.1.2/libjava/prims.cc:151
#2 0x7fc00758 in ?? ()
#3 0x0f1e686c in catch_segv (_sc=@7fc00570) at /disk1/xtool/crosstool-0.43/build/powerpc-860-linux-gnu/gcc-4.1.2-glibc-2.3.3/gcc-4.1.2/libjava/prims.cc:151
#4 0x7fc00d18 in ?? ()
#5 0x0f1e686c in catch_segv (_sc=@7fc00570) at /disk1/xtool/crosstool-0.43/build/powerpc-860-linux-gnu/gcc-4.1.2-glibc-2.3.3/gcc-4.1.2/libjava/prims.cc:151


and on forever...perhaps an infinite loop?

-Ben




Andrew Haley wrote:
Ben Tatham writes:
> I'll respond directly to you for a moment, b/c i think this is outside > the scope of the list...
> > btw...thank you SO much for all your incredibly quick help...
> > - I have a core dump from my target (ppc) platform, from running the > debug version of libgcj and the app.
> - When I open it with the target-specific gdb on our build server > (namely powerpc-860-linux-gnu-gdb), I get the output listing below. As > best I can tell, it is using the local versions of libgcc, libgcj, > etc...not the powerpc versions. I am unclear as to how to get gdb to > use the appropriate lib files to load the appropriate symbols...


Me either.  If I were you I'd just make a few symlinks to the target
libraries for gdb's benefit.

Andrew.


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