On Thu, Feb 19, 2015 at 10:37:46AM +0000, Richard W.M. Jones wrote:
> On Thu, Feb 19, 2015 at 11:35:17AM +0100, Jakub Jelinek wrote:
> > On Thu, Feb 19, 2015 at 10:30:50AM +0000, Richard W.M. Jones wrote:
> > > info gcc, of course yes. -DPIC is not documented at all, and the
> > > various pie/pic options are obscure to say the least.
> >
> > Why should -DPIC be documented? -D is documented. -DPIC means define
> > macro PIC to 1. There is no magic in that beyond, just a convention,
> > used e.g. by libtool, so that some sources can do things conditional on
> > whether they are compiled as position independent or not. Of course, gcc
> > also predefines __pic__/__PIC__/__pie__/__PIE__ macros depending on command
> > line options.
>
> Can I ask you a simple question? Which of:
>
> -DPIE
> -fPIE
> -fpie
Missed one:
-pie
Reading the thread that Padraig pointed to, it seems as if
_hardened_build should be adding the right flags already. It looks as
if the packager should not need to add flags at all (they would be
added automatically by %{configure}). So a second question would be,
why doesn't it?
Rich.
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