Re: [Valgrind-users] Unable to cross compile Valgrind for ARM

[Toàn T. <min...@gm...>]

Hi John Reiser,

Thank you for your reply.
To be more specific, here is my target device spec:
*Processor : ARM926EJ-S rev 5 (v5l) BogoMIPS : 119.19 Features : swp half
thumb fastmult edsp java CPU implementer : 0x41 CPU architecture: 5TEJ CPU
variant : 0x0 CPU part : 0x926 CPU revision : 5 *

Since it uses ARM926EJ-S processor, in an attempt to fix *error: bad value
(cortex-a8) for -mcpu= switch,* I replace cortex-a8 with arm926ej-s for all
files in valgrind-3.13.0 folder. I am able to bypass this error but another
error pops up:

m_dispatch/dispatch-arm-linux.S: Assembler messages:
m_dispatch/dispatch-arm-linux.S:104: Error: selected processor does
not support `movw r1,#47'
m_dispatch/dispatch-arm-linux.S:105: Error: selected processor does
not support `movw r2,#0'
m_dispatch/dispatch-arm-linux.S:157: Error: selected processor does
not support `movw r1,#:lower16:vgPlain_stats__n_xindirs_32'
m_dispatch/dispatch-arm-linux.S:158: Error: selected processor does
not support `movt r1,#:upper16:vgPlain_stats__n_xindirs_32'
m_dispatch/dispatch-arm-linux.S:165: Error: selected processor does
not support `movw r1,#(((1<<15))-1)'
m_dispatch/dispatch-arm-linux.S:166: Error: selected processor does
not support `movw r4,#:lower16:vgPlain_tt_fast'
m_dispatch/dispatch-arm-linux.S:169: Error: selected processor does
not support `movt r4,#:upper16:vgPlain_tt_fast'
m_dispatch/dispatch-arm-linux.S:182: Error: selected processor does
not support `movw r1,#:lower16:vgPlain_stats__n_xindir_misses_32'
m_dispatch/dispatch-arm-linux.S:183: Error: selected processor does
not support `movt r1,#:upper16:vgPlain_stats__n_xindir_misses_32'
Makefile:3224: recipe for target
'm_dispatch/libcoregrind_arm_linux_a-dispatch-arm-linux.o' faile

So i tried your suggestion, which is "Delete the -mcpu entirely".
Another error pops up:

m_dispatch/dispatch-arm-linux.S: Assembler messages:
m_dispatch/dispatch-arm-linux.S:157: Error: constant expression
required -- `movw r1,#:lower16:vgPlain_stats__n_xindirs_32'
m_dispatch/dispatch-arm-linux.S:158: Error: constant expression
required -- `movt r1,#:upper16:vgPlain_stats__n_xindirs_32'
m_dispatch/dispatch-arm-linux.S:166: Error: constant expression
required -- `movw r4,#:lower16:vgPlain_tt_fast'
m_dispatch/dispatch-arm-linux.S:169: Error: constant expression
required -- `movt r4,#:upper16:vgPlain_tt_fast'
m_dispatch/dispatch-arm-linux.S:182: Error: constant expression
required -- `movw r1,#:lower16:vgPlain_stats__n_xindir_misses_32'
m_dispatch/dispatch-arm-linux.S:183: Error: constant expression
required -- `movt r1,#:upper16:vgPlain_stats__n_xindir_misses_32'
Makefile:3224: recipe for target
'm_dispatch/libcoregrind_arm_linux_a-dispatch-arm-linux.o' failed


I desperately need a tool to check memory leak for binary file on my
device. Is there any workaround for this?
Toan Tran.

On Fri, Nov 24, 2017 at 12:30 AM, John Reiser <jr...@bi...> wrote:

> Hi everyone, I'm having a problem while trying to cross compile Valgrind
>> for ARM.
>>
>
> armv6 and lower are not supported because the hardware lacks reasonable
> support
> for threads.  It is [was] possible to run memcheck of a single-thread
> program
> on amrv6.  Search the mailing list archives and bug reports of a few years
> ago
> for the patches; I contributed one set.  Beware that it is *VERY SLOW*
> and it is likely that you will run out of RAM when checking any real
> program.
>
> It is foolish even to try running memcheck on anything less than
> a RaspberryPi-3B (1GB RAM, 1GHz CPU, $35.)  You have much better things to
> do.
> Linux distributions such as Fedora and Debian already package valgrind for
> armv7*.
>
> priv/main_globals.c:1: *error: bad value (cortex-a8) for -mcpu= switch *
>> Makefile:1254: recipe for target 'priv/libvex_arm_linux_a-main_globals.o'
>> failed
>>
>
> -mcpu=cortex-a8 does not match -march=arm.  Delete the -mcpu entirely.
>
>
> ------------------------------------------------------------
> ------------------
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> _______________________________________________
> Valgrind-users mailing list
> Val...@li...
> https://lists.sourceforge.net/lists/listinfo/valgrind-users
>