[PATCH v1] changing mmap flags and memfd_create flags to print abbreviated values under -Xraw

shankarapailoor shankarapailoor at gmail.com
Wed Nov 28 02:50:01 UTC 2018

Hi Dmitry,

I believe the following are the functions/macros that need to be
replaced with just the raw values:  htons, htonl, inet_addr, makedev,
if_nametoindex, inet_pton, kernel_version, QCMD.

I'm not sure if I will be able to do all of them so are there some
which you would be willing to convert? I know you are quite busy so no
worries if not.

On Tue, Nov 27, 2018 at 5:38 PM Dmitry V. Levin <ldv at altlinux.org> wrote:
> On Mon, Nov 26, 2018 at 09:50:03PM -0600, shankarapailoor wrote:
> > >However, other signals are still printed in traditional symbolic form
> > despite of -X raw and -X verbose settings, this has to be fixed.
> > The same could be said about signal masks.  I'm not sure what's the best
> > raw representation for signal masks, maybe it's an array of hex bytes.
> >
> > Seems reasonable to me. Looking at
> > https://elixir.bootlin.com/linux/latest/source/include/uapi/asm-generic/signal.h#L91
> > it seems that the mask is just an array of unsigned longs so that
> > would probably be best.
> This is somewhat complicated by the fact that strace still supports
> architectures with legacy syscalls that operate with 32-bit signal masks,
> e.g. i386 personality on x86_64.  You can have a look at
> signal.c:sprintsigmask_n() and its users to get an idea.
> > >Maybe print sin_addr as %#x?
> >
> > Yeah I think so
> >
> > >What do you think is the appropriate raw representation for IPv6 addresses?
> >
> > Good question. Maybe a 16 byte hex string or an array of hex values of
> > length 16?
> IPv6 address is not really a string, so I'd rather go for an array of hex bytes.
> --
> ldv
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Shankara Pailoor

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