Re: [gentoo-musl] What is crtbeginP.o ?

[Anthony G. Basile]

On 6/10/16 6:00 AM, Lei Zhang wrote:

>
> First, thanks for your input :)
>
> I'm aware of crtbegin{S,T}.o, but it's the first time I see
> crtbeginP.o. Even more strangely, on my host:
> $ ls /usr/lib/gcc/x86_64-pc-linux-musl/4.9.3 | grep crtbegin
> crtbegin.o
> crtbeginS.o
> crtbeginT.o
>
> You can see crtbeginP.o is not used by the musl cross-compiler, but
> only on the musl based system.

As I suggested in my email, try using static and/or pie to see what they
are for.  The collect2 line from `gcc -v  --static -o test test.c` has
crtbeginP.o for our hardened compiler, but not vanilla.  I was mistaken
in my earlier email when I said zorry and I chose T for the hardened
specific static crtbegin file.  We chose P.  If you need to understand
the internals, ask him.

-- 
Anthony G. Basile, Ph.D.
Gentoo Linux Developer [Hardened]
E-Mail    : blueness@g.o
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