[Buildroot] [PATCH v3] Remove -fPIC on x86_64

Thomas Petazzoni thomas.petazzoni at free-electrons.com
Fri Jul 13 20:37:03 UTC 2012


Le Wed, 11 Jul 2012 14:57:18 +0200,
"Arnout Vandecappelle (Essensium/Mind)" <arnout at mind.be> a écrit :

> The -fPIC breaks the purgatory of kexec (= the code that passes command-line
> arguments to the kernel): kexec doesn't know how to handle the GOT and PLT
> relocation entries.
> 
> There is also no reason at all to pass -fPIC.  Shared libraries that require
> it will add it to their local Makefiles, and normal executables have no
> business with -fPIC (plus it adds overhead...).
> 
> The -fPIC was added by Bernhard Reutner-Fischer <rep.dot.nop at gmail.com>
> in commit 8027784c.  That commit adds sysroot parameters to CFLAGS.
> There is no explanation why -fPIC is also added for x86_64.
> 
> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout at mind.be>

Applied, thanks.

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com



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