gcj segfaults on i686/x86_64-apple-darwin*

Mon Nov 9 08:56:00 GMT 2009

Jack Howarth wrote:
> Do any of the gcc java developers have access to intel darwin?

I don't think so.
> gdb /sw/lib/gcc4.5/libexec/gcc/i686-apple-darwin9/4.5.0/ecj1
> ...
> (gdb) r testme.java -fbootclasspath=./:/sw/lib/gcc4.5/share/java/libgcj-4.5.0.jar -fsource=1.5 -ftarget=1.5 -fzip-dependency /var/folders/1C/1CdoNxmNFHyOIjNBLNuJh++++TM/-Tmp-//ccCFc8VX.zip -fzip-target /var/folders/1C/1CdoNxmNFHyOIjNBLNuJh++++TM/-Tmp-//ccBrG88S.jar
> Starting program: /sw/lib/gcc4.5/libexec/gcc/i686-apple-darwin9/4.5.0/ecj1 testme.java -fbootclasspath=./:/sw/lib/gcc4.5/share/java/libgcj-4.5.0.jar -fsource=1.5 -ftarget=1.5 -fzip-dependency /var/folders/1C/1CdoNxmNFHyOIjNBLNuJh++++TM/-Tmp-//ccCFc8VX.zip -fzip-target /var/folders/1C/1CdoNxmNFHyOIjNBLNuJh++++TM/-Tmp-//ccBrG88S.jar
> Reading symbols for shared libraries ++++.+. done
>> Program received signal SIGABRT, Aborted.
> 0x94cc2e42 in __kill ()
> (gdb) bt
> #0 0x94cc2e42 in __kill ()
> #1 0x94cc2e34 in kill$UNIX2003 ()
> #2 0x94d3523a in raise ()
> #3 0x94d41679 in abort ()
> #4 0x038de502 in _Jv_Throw (value=<value temporarily unavailable, due to optimizations>) at ../../../gcc-4.5-20091107/libjava/exception.cc:128
> #5 0x039359bb in _ZN4java4lang5Class7forNameEJPS1_PNS0_6StringES2_ (className=<value temporarily unavailable, due to optimizations>, caller=<value temporarily unavailable, due to optimizations>) at Class.java:133
> Previous frame inner to this frame (gdb could not unwind past this frame)

This is caused by incorrect unwind information being generated by gcc, or
by a bug in gcc's unwinder library.
Andrew.