Small class file with loop from assembler gives odd behavior

bkuhn at bkuhn at
Sun Mar 5 23:19:26 PST 2000

Godmar Back wrote:
>  Run it under gdb ("setenv KAFFE_DEBUG gdb; kaffe Main")
> and tell us what the backtrace says.  Probably some assumption about the
> way in which classfiles are constructed that's biting us.

Here's the output you asked for.  I find it odd there is a Segmentation
Fault inside gdb, but not outside of gdb.   I guess perhaps you are
catching it.

GNU gdb 4.17.m68k.objc.threads.hwwp.fpu.gnat
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This GDB was configured as "i486-pc-linux-gnu"...
(gdb) run
Starting program: /home/bkuhn/tmp/Kaffe/libexec/Kaffe Main

Program received signal SIGSEGV, Segmentation fault.
0x4003a74b in gcFree (gcif=0x40089a20, mem=0x4008c4e4)
    at mem/gc-incremental.c:1046
1046                    idx = GCMEM2IDX(info, unit);
(gdb) backtrace
#0  0x4003a74b in gcFree (gcif=0x40089a20, mem=0x4008c4e4)
    at mem/gc-incremental.c:1046
#1  0x4003aea3 in jfree (mem=0x4008c4e4) at gc.c:33
#2  0x40035df7 in discardErrorInfo (einfo=0xbfffeda0) at exception.c:219
#3  0x40035bef in error2Throwable (einfo=0xbfffeda0) at exception.c:110
#4  0x40035e2e in throwError (einfo=0xbfffeda0) at exception.c:230
#5  0x40052028 in soft_fixup_trampoline (_data=0x81c4b6d) at soft.c:561
#6  0x40078e9d in i386_do_fixup_trampoline () at machine.c:1013
#7  0x4005513f in callMethodV (meth=0x81bf0c0, func=0x81c4b68, obj=0x0, 
    args=0xbffff2d4, ret=0xbffff1d4) at support.c:706
#8  0x40046ae8 in Kaffe_CallStaticVoidMethodV (env=0x40083fd0, cls=0x81715c8, 
    meth=0x81bf0c0, args=0xbffff2d0) at jni.c:2343
#9  0x40046b8f in Kaffe_CallStaticVoidMethod (env=0x40083fd0, cls=0x81715c8, 
    meth=0x81bf0c0) at jni.c:2356
#10 0x8048dda in main2 (env=0x40083fd0, argv=0xbffff794, farg=2, argc=0)
    at main.c:195
#11 0x8048c21 in main (argc=1, argv=0xbffff794) at main.c:115
#12 0x400cd7e2 in   ()

         -  bkuhn at  -  Bradley M. Kuhn  -  bkuhn at  -

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