Re: [Sablevm-user] crash in FindClass() from sablevm/sablevm.c

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On Fri, 2002-08-23 at 08:27, Etienne M. Gagnon wrote:
> Hi Emile,
> 
> Try commenting the PACKAGE and VERSION macro definitions in the libffi
> header files on your system. (/usr/include/ffi.h probably?)

Found them in /usr/local/include/fficonfig.h which ffi.h includes.  This
seems to have done it; thanks!

> You should have got compiler warnings about redefinition of these
> macros.  This is a bug in libffi.
> 
> You should provide more details about your platform (GNU/Linux version
> (or BSD?), processor, gcc vdrsion used, ...) in the future.  It helps
> people to help you...

OK, sorry about that.

thanks for the help,
-emile

> Etienne
> 
> On Thu, Aug 22, 2002 at 09:10:38AM -0700, Emile Snyder wrote:
> > Hello,
> > 
> > I recently downloaded 1.0.3 of sablevm, the native class package, and
> > the classes package.  I put them all in /usr/local/src and unpacked them
> > there, downloaded/built/installed libffi-1.20, then as root ran
> > 
> > [root@basalt /usr/local/src]# ./sablevm-1.0.3/build-many
> > 
> > And everything seemed to work fine.  However, I can't seem to get the vm
> > to run any java ;)  The gdb session/backtrace follows.  It looks like
> > it's dying while trying to find the java.lang.String class in order to
> > build the array of argv for the main() method call.  If I run the
> > non-debug version of sablevm outside the debugger, it just hangs.
> > 
> > Has anyone else had similar problems?  Any tips?
> > 
> > thanks,
> > -emile
> > 
> > 
> > -------------------------------------------------------------------
> > backtrace stuff.  (Echo is a 'hello world' style java class that I tried
> > compiling with both jikes 1.16 and gcj 2.96.)
> > -------------------------------------------------------------------
> > 
> > [esnyder@basalt ~/dev/test]$ gdb /usr/local/bin/sablevm-debug
> > (gdb) run Echo
> > Starting program: /usr/local/bin/sablevm-debug Echo
> > [New Thread 1024 (LWP 17889)]
> > 
> > SableVM version 1.0.3
> > Copyright (C) 2000-2002 Etienne M. Gagnon <eti...@uq...> and
> > others.  All rights reserved.
> > 
> > This software comes with ABSOLUTELY NO WARRANTY.  This is free
> > software, and you are welcome to redistribute it under certain
> > conditions.
> > 
> > To get the name of all copyright holders and detailed license
> > information, type "sablevm --license" or look in the directory
> > "/usr/local/share/sablevm".
> > 
> > The SableVM web site is located at http://www.sablevm.org/ .
> > 
> > 
> > Program received signal SIGSEGV, Segmentation fault.
> > [Switching to Thread 1024 (LWP 17889)]
> > 0x400f1f26 in lt_dlsym () from /usr/lib/libltdl.so.3
> > (gdb) bt
> > #0  0x400f1f26 in lt_dlsym () from /usr/lib/libltdl.so.3
> > #1  0x400813de in Java_java_lang_Runtime_nativeLoad
> > (_env=3D0x804d4e0,=20
> >     this=3D0x8060588, _filename=3D0x8060578) at java_lang_Runtime.c:230
> > #2  0x400ecf09 in ffi_call_SYSV () from /usr/local/lib/libffi.so.1
> > #3  0x400ecede in ffi_call (cif=3D0x4117df20,=20
> >     fn=3D0x400812ac <Java_java_lang_Runtime_nativeLoad>,
> > rvalue=3D0xbfffe4cc,=20
> >     avalue=3D0x804f794) at ./x86/ffi.c:184
> > #4  0x40030d38 in _svmf_invoke_native_nonstatic (env=3D0x804d4e0)
> >     at native.c:1171
> > #5  0x4006b058 in _svmf_interpreter (_env=3D0x804d4e0)
> >     at instructions_switch.c:9839
> > #6  0x40026291 in _svmh_invoke_specific_static_clinit
> > (env=3D0x804d4e0,=20
> >     method=3D0x411752b4) at method_invoke.c:5061
> > #7  0x4008107d in Java_java_lang_Class_step8 (_env=3D0x804d4e0,=20
> >     _class=3D0x80605c8, vmData=3D0x8060820) at java_lang_Class.c:936
> > #8  0x400ecf09 in ffi_call_SYSV () from /usr/local/lib/libffi.so.1
> > #9  0x400ecede in ffi_call (cif=3D0x4112b72c,=20
> >     fn=3D0x40080fdc <Java_java_lang_Class_step8>,
> > rvalue=3D0xbfffe720,=20
> >     avalue=3D0x804f644) at ./x86/ffi.c:184
> > #10 0x40030568 in _svmf_invoke_native_static (env=3D0x804d4e0) at
> > native.c:834
> > #11 0x4006afb0 in _svmf_interpreter (_env=3D0x804d4e0)
> >     at instructions_switch.c:9791
> > #12 0x4001f127 in _svmh_invoke_nonvirtual_jlclass_initialize
> > (env=3D0x804d4e0,=20
> > ---Type <return> to continue, or q <return> to quit---
> >     this=3D0x80609f8, param_1=3D1) at method_invoke.c:352
> > #13 0x4003a963 in _svmf_class_initialization (env=3D0x804d4e0,
> > class=3D0x41173c50)
> >     at initialization.c:24
> > #14 0x40072034 in _svmf_interpreter (_env=3D0x804d4e0)
> >     at instructions_switch.c:16329
> > #15 0x40024b05 in _svmh_invoke_static_stringcreator_createinternedstring
> > (
> >     env=3D0x804d4e0, param_1=3D0x8060810, ret=3D0x8060a18) at
> > method_invoke.c:4072
> > #16 0x4002709d in _svmf_get_interned_string (env=3D0x804d4e0,=20
> >     value=3D0x4116c90c "java-lang", str=3D0x8060a18) at util2.c:1018
> > #17 0x40028411 in _svmf_resolve_CONSTANT_String (env=3D0x804d4e0,=20
> >     stringref=3D0x4116c8f4) at resolve.c:743
> > #18 0x4006d61c in _svmf_interpreter (_env=3D0x804d4e0)
> >     at instructions_switch.c:12740
> > #19 0x40026291 in _svmh_invoke_specific_static_clinit
> > (env=3D0x804d4e0,=20
> >     method=3D0x4116e728) at method_invoke.c:5061
> > #20 0x4008107d in Java_java_lang_Class_step8 (_env=3D0x804d4e0,=20
> >     _class=3D0x80607e0, vmData=3D0x80607d0) at java_lang_Class.c:936
> > #21 0x400ecf09 in ffi_call_SYSV () from /usr/local/lib/libffi.so.1
> > #22 0x400ecede in ffi_call (cif=3D0x4112b72c,=20
> >     fn=3D0x40080fdc <Java_java_lang_Class_step8>,
> > rvalue=3D0xbfffeca4,=20
> >     avalue=3D0x804f408) at ./x86/ffi.c:184
> > #23 0x40030568 in _svmf_invoke_native_static (env=3D0x804d4e0) at
> > native.c:834
> > #24 0x4006afb0 in _svmf_interpreter (_env=3D0x804d4e0)
> > ---Type <return> to continue, or q <return> to quit---
> >     at instructions_switch.c:9791
> > #25 0x4001f127 in _svmh_invoke_nonvirtual_jlclass_initialize
> > (env=3D0x804d4e0,=20
> >     this=3D0x8060320, param_1=3D1) at method_invoke.c:352
> > #26 0x4003a963 in _svmf_class_initialization (env=3D0x804d4e0,
> > class=3D0x4116b198)
> >     at initialization.c:24
> > #27 0x40072034 in _svmf_interpreter (_env=3D0x804d4e0)
> >     at instructions_switch.c:16329
> > #28 0x40024b05 in _svmh_invoke_static_stringcreator_createinternedstring
> > (
> >     env=3D0x804d4e0, param_1=3D0x80607f0, ret=3D0x80603a0) at
> > method_invoke.c:4072
> > #29 0x4002709d in _svmf_get_interned_string (env=3D0x804d4e0,=20
> >     value=3D0x41151410
> > "SS=CA=BCNJ=CC\214=CE\231=CC\210=CC\201=CE=A5=CC\210=CC\201=D4=B5=D5\222H=
> > =CC=B1T=CC\210W=CC\2
> > 12Y=CC\212A=CA=BE=CE=A5=CC\223=CE=A5=CC\223=CC\200=CE=A5=CC\223=CC\201=CE=
> > =A5=CC\223=CD\202=E1=BC\210=CE\231=E1=BC\211=CE\231=E1=BC\2
> > 12=CE\231=E1=BC\213=CE\231=E1=BC\214=CE\231=E1=BC\215=CE\231=E1=BC\216=CE\2=
> > 31=E1=BC\217=CE\231=E1=BC\210=CE\231=E1=BC\211=CE
> > \231=E1=BC\212=CE\231=E1=BC\213=CE\231=E1=BC\214=CE\231=E1=BC\215=CE\231=E1=
> > =BC\216=CE\231=E1=BC\217=CE\231=E1=BC=A8=CE\231=E1=BC
> > =A9=CE\231=E1=BC=AA=CE\231=E1=BC=AB=CE\231=E1=BC=AC=CE\231=E1=BC=AD=CE\231=
> > =E1=BC=AE=CE\231=E1=BC=AF=CE\231=E1=BC=A8=CE\231=E1=BC=A9=CE\231=E1=BC=AA=
> > =CE\231=E1=BC
> > =AB=CE"..., str=3D0x80603a0) at util2.c:1018
> > #30 0x40028411 in _svmf_resolve_CONSTANT_String (env=3D0x804d4e0,=20
> >     stringref=3D0x411513f8) at resolve.c:743
> > #31 0x4006d61c in _svmf_interpreter (_env=3D0x804d4e0)
> >     at instructions_switch.c:12740
> > #32 0x40026291 in _svmh_invoke_specific_static_clinit
> > (env=3D0x804d4e0,=20
> >     method=3D0x4115351c) at method_invoke.c:5061
> > #33 0x4008107d in Java_java_lang_Class_step8 (_env=3D0x804d4e0,=20
> > ---Type <return> to continue, or q <return> to quit---
> >     _class=3D0x805fea0, vmData=3D0x805fe90) at java_lang_Class.c:936
> > #34 0x400ecf09 in ffi_call_SYSV () from /usr/local/lib/libffi.so.1
> > #35 0x400ecede in ffi_call (cif=3D0x4112b72c,=20
> >     fn=3D0x40080fdc <Java_java_lang_Class_step8>,
> > rvalue=3D0xbffff228,=20
> >     avalue=3D0x804f1e4) at ./x86/ffi.c:184
> > #36 0x40030568 in _svmf_invoke_native_static (env=3D0x804d4e0) at
> > native.c:834
> > #37 0x4006afb0 in _svmf_interpreter (_env=3D0x804d4e0)
> >     at instructions_switch.c:9791
> > #38 0x4001f127 in _svmh_invoke_nonvirtual_jlclass_initialize
> > (env=3D0x804d4e0,=20
> >     this=3D0x805fd48, param_1=3D1) at method_invoke.c:352
> > #39 0x4003a963 in _svmf_class_initialization (env=3D0x804d4e0,
> > class=3D0x4114e918)
> >     at initialization.c:24
> > #40 0x4005fb8d in FindClass (_env=3D0x804d4e0, name=3D0x804b5e9
> > "java/lang/String")
> >     at native_interface.c:23706
> > #41 0x0804a8f1 in main (argc=3D2, argv=3D0xbffff534) at sablevm.c:1391
> > #42 0x42017499 in __libc_start_main () from /lib/i686/libc.so.6
> > 
> > 
> > 
> > 
> > 
> > 
> > 
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> 
> -- 
> Etienne M. Gagnon                    http://www.info.uqam.ca/~egagnon/
> SableVM:                                       http://www.sablevm.org/
> SableCC:                                       http://www.sablecc.org/
> 
> 
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