Re: [dpdk-dev] [PATCH 1/5] pmdinfogen: fix cross compilation for ARM BE

[Neil Horman <nhorman@tuxdriver.com>]

On Mon, Dec 11, 2017 at 12:40:32PM +0000, Bruce Richardson wrote:
> On Thu, Nov 02, 2017 at 03:38:51PM +0530, Hemant Agrawal wrote:
> > cross compiling DPDK for BE mode on ARM results into errors
> > 
> > "PMDINFO portal/dpaa2_hw_dpio.o.pmd.c No drivers registered"
> > 
> > Fixes: 98b0fdb0ffc6 ("pmdinfogen: add buildtools and pmdinfogen utility")
> > Cc: Neil Horman <nhorman@tuxdriver.com>
> > Cc: stable@dpdk.org
> > 
> > Signed-off-by: Jun Yang <jun.yang@nxp.com>
> > Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
> > ---
> >  buildtools/pmdinfogen/pmdinfogen.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> 
> Comment could be a bit more specific about what the problem is and how
> changing the hard-coded "32" fixes it.
> 
> Haven't tested the cross compilation part myself, but this causes no
> errors for 32-bit or 64-bit builds on my system. So, with some more
> detail on the specifics of the fix in the commit message:
> 
> Acked-by: Bruce Richardson <bruce.richardson@intel.com>
> 

I'm with Bruce.  I'd like to know exactly whats going on here.  I dont have an
ARM system handy, so could you please post the errors that you are seeing here?
Is ADDR_SIZE not defined on BE for ARM or some such?  That seems like it should
be fixed, rather than this change.

Neil

> > diff --git a/buildtools/pmdinfogen/pmdinfogen.c b/buildtools/pmdinfogen/pmdinfogen.c
> > index e73fc76..9119e52 100644
> > --- a/buildtools/pmdinfogen/pmdinfogen.c
> > +++ b/buildtools/pmdinfogen/pmdinfogen.c
> > @@ -181,7 +181,7 @@ static int parse_elf(struct elf_info *info, const char *filename)
> >  		sechdrs[i].sh_offset    =
> >  			TO_NATIVE(endian, ADDR_SIZE, sechdrs[i].sh_offset);
> >  		sechdrs[i].sh_size      =
> > -			TO_NATIVE(endian, 32, sechdrs[i].sh_size);
> > +			TO_NATIVE(endian, ADDR_SIZE, sechdrs[i].sh_size);
> >  		sechdrs[i].sh_link      =
> >  			TO_NATIVE(endian, 32, sechdrs[i].sh_link);
> >  		sechdrs[i].sh_info      =
> > -- 
> > 2.7.4
> > 
>