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From: Brandon R. <br...@co...> - 2009-10-09 20:44:09
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I am getting an illegal instruction error when running valgrind on a ppc with montavista.
Does anyone have an idea how I can fix this?
# ./valgrind echo hi
==1012== Memcheck, a memory error detector
==1012== Copyright (C) 2002-2009, and GNU GPL'd, by Julian Seward et al.
==1012== Using Valgrind-3.6.0.SVN and LibVEX; rerun with -h for copyright info
==1012== Command: echo hi
==1012==
disInstr(ppc): declined to decode an AltiVec insn.
disInstr(ppc): unhandled instruction: 0x13CB0321
primary 4(0x4), secondary 801(0x321)
==1012== valgrind: Unrecognised instruction at address 0x400ec70.
==1012== Your program just tried to execute an instruction that Valgrind
==1012== did not recognise. There are two possible reasons for this.
==1012== 1. Your program has a bug and erroneously jumped to a non-code
==1012== location. If you are running Memcheck and you just saw a
==1012== warning about a bad jump, it's probably your program's fault.
==1012== 2. The instruction is legitimate but Valgrind doesn't handle it,
==1012== i.e. it's Valgrind's fault. If you think this is the case or
==1012== you are not sure, please let us know and we'll try to fix it.
==1012== Either way, Valgrind will now raise a SIGILL signal which will
==1012== probably kill your program.
==1012==
==1012== Process terminating with default action of signal 4 (SIGILL)
==1012== Illegal opcode at address 0x400EC70
==1012== at 0x400EC70: _dl_catch_error (dl-error.c:160)
==1012== by 0x4002CE7: do_preload (rtld.c:804)
==1012== by 0x4005A93: dl_main (rtld.c:1727)
==1012== by 0x401595B: _dl_sysdep_start (dl-sysdep.c:239)
==1012== by 0x4002517: _dl_start_final (rtld.c:323)
==1012== by 0x4002A43: _dl_start (rtld.c:551)
==1012== by 0x40164CF: _start (in /lib/ld-2.5.90.so)
==1012==
==1012== HEAP SUMMARY:
==1012== in use at exit: 0 bytes in 0 blocks
==1012== total heap usage: 0 allocs, 0 frees, 0 bytes allocated
==1012==
==1012== All heap blocks were freed -- no leaks are possible
==1012==
==1012== For counts of detected and suppressed errors, rerun with: -v
==1012== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 4 from 2)
Illegal instruction
From: Mogens Lindholdt Lauridsen [mailto:ML...@ba...]
Sent: Friday, October 09, 2009 4:20 PM
To: Brandon Rioja
Cc: Tom Hughes; val...@li...
Subject: Re: [Valgrind-users] Montavista cross compilation
Well, I am sure there is a more elegant way... but this is how I handle it....
When you build your code, the path for the tools will be set inside valgrind. So if you build valgrind in:
"/home/foo/valgrind"
You must also make sure it is located in the same path on your target.
I guess you can use "strace valgrind .." to actually see where it expects to find the memcheck file.
You can probably fix this by setting the --bindir/--sbindir/--libexecdir on configure when you build valgrind. (I can live with using the same path when building and running target, so I didn't bother to figure these setting out. Sorry...)
/Mogens
Brandon Rioja <br...@co...>
09-10-2009 17:31
To
Tom Hughes <to...@co...>
cc
"val...@li..." <val...@li...>, Mogens Lindholdt Lauridsen <ML...@ba...>
Subject
Re: [Valgrind-users] Montavista cross compilation
After I got valgrind to compile, I am having difficulty running.
# ./valgrind
valgrind: failed to start tool 'memcheck' for platform 'ppc32-linux': No such file or directory
-----Original Message-----
From: Tom Hughes [mailto:to...@co...]
Sent: Friday, October 09, 2009 10:57 AM
To: Brandon Rioja
Cc: Mogens Lindholdt Lauridsen; Bart Van Assche; val...@li...
Subject: Re: [Valgrind-users] Montavista cross compilation
On 09/10/09 15:43, Brandon Rioja wrote:
> I'm getting some problems, still.
>
> This is the error:
>
> /opt/montavista/cge50/montavista/cge/devkit/ppc/85xx/bin/ppc_85xx-gcc
> -Wno-long-long -Wno-pointer-sign -Wdeclaration-after-statement
> -fno-stack-protector -o memcheck-ppc32-linux -static
> -Wl,-defsym,valt_load_address=0x38000000 -nodefaultlibs -nostartfiles -u
> _start -m32 -Wl,-T,../valt_load_address_ppc32_linux.lds
> memcheck_ppc32_linux-mc_leakcheck.o
> memcheck_ppc32_linux-mc_malloc_wrappers.o memcheck_ppc32_linux-mc_main.o
> memcheck_ppc32_linux-mc_translate.o memcheck_ppc32_linux-mc_machine.o
> memcheck_ppc32_linux-mc_errors.o ../coregrind/libcoregrind-ppc32-linux.a
> ../VEX/libvex-ppc32-linux.a -lgcc
>
> /opt/montavista/cge50/montavista/cge/devkit/ppc/85xx/bin/../lib/gcc/powerpc-montavista-linux-gnuspe/4.2.0/libgcc.a(divdf3.o):
> In function `__divdf3':
>
> /home/build/BUILD/gcc-4.2.0/objdir/gcc/../../gcc/config/soft-fp/divdf3.c:44:
> undefined reference to `abort'
It looks like your libgcc has references to the abort() function in the
C library but we (deliberately) don't link the with the C library.
libgcc is supposed to be low level support routines for gcc generated
code to call and shouldn't really be calling C library routines like
that as it stops you being able to compile code that doesn't link with
the C library.
Tom
--
Tom Hughes (to...@co...)
http://www.compton.nu/
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