Re: [PATCH 2/2] objtool: use host flags to detect if libelf is missing

From: Robin Jarry
Date: Fri Feb 23 2018 - 11:23:15 EST


2018-02-23, Josh Poimboeuf:
> Hi Robin,
>
> Did you test this? I see some issues:
>
> a) I don't see where the host_cflags variable comes from (and btw, it's
> misspelled...)

Hi Josh,

Shame on me... Last minute fix. I had tested this first by forcing
HOSTCC="gcc <CFLAGS> <LDFLAGS>" but I found it rather dirty. As it turns
out, my patch is not better.

> b) I don't see where objtool uses HOSTLDFLAGS.

Indeed, I also missed this (see above).

It looks like objtool does not use HOSTCFLAGS nor HOSTLDFLAGS (defined
in top Makefile). Do you see a reason why? Maybe it would be a good idea
to share these flags (adding some specific ones for objtool, if needed).

What do you think?

--
Robin