13 Oct
2010
13 Oct
'10
8:30 a.m.
Le 12/10/2010 23:00, Joakim Tjernlund a écrit :
Yes, but the difference isn't really the arch. It is the -mrelocatable flag that is the big difference.
Not only: obviously, implementing GOT relocation is not done the same on both archs, and it simply is not beneficial on ARM wrt PPC in terms of instructions. I did a pretty extensive run of tests with and without -fPIC and -fPIE on ARM, and GOT relocation clearly makes code bigger, whereas it does not PPC.
This simply implies that -fPIC is a better choice for PPC (and hence -mrelocatable) while -fpie is a better one for ARM.
Amicalement,
--
Albert.