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Re: Why GLIBC requires compiler optimizations to build

From: Gary Benson <gbenson at redhat dot com>
To: "H.J. Lu" <hjl dot tools at gmail dot com>
Cc: Adhemerval Zanella <adhemerval dot zanella at linaro dot org>, GNU C Library <libc-alpha at sourceware dot org>
Date: Wed, 20 Jun 2018 11:35:16 +0100
Subject: Re: Why GLIBC requires compiler optimizations to build
References: <f3ddf6f8-0e4e-df25-2758-826321fb4623@linaro.org> <CAMe9rOoXbkKyOVCVL3zA7rm5jAOx+E1BL2G6wx1F2g-7ac1Tug@mail.gmail.com>

On 11 June 2018 at 22:48, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Mon, Jun 11, 2018 at 2:38 PM, Adhemerval Zanella <adhemerval.zanella@linaro.org> wrote:
> > It has been some time since I tried to build glibc without optimization
> > as an exercise and I can't really recall what exactly has prevented me
> > to accomplish it.  So the question is if it is make sense to add such
> > requirement and if it is the case whether it would be a useful options
> > and what prevents us to do so?
>
> The main issue is to bootstrap ld.so to prevent dynamic relocations
> before it is ready.

Is it only really elf/rtld.c that specifically requires optimization then?

Thanks,
Gary

Follow-Ups:
- Re: Why GLIBC requires compiler optimizations to build
  - From: Carlos O'Donell

References:
- Why GLIBC requires compiler optimizations to build
  - From: Adhemerval Zanella
- Re: Why GLIBC requires compiler optimizations to build
  - From: H.J. Lu

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