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From: H.J. Lu
Date: Mon, Oct 19, 2015 at 1:04 PM
Subject: PING: [PATCH] X86: Optimize access to globals in PIE with copy reloc
To: GCC Patches , Richard Biener
, Jakub Jelinek ,
Richard Henderson
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From: H.J. Lu
Date: Wed, Jul 1, 2015 at 5:11 AM
Subject: [PATCH] X86: Optimize access to globals in PIE with copy reloc
To: gcc-patches@gcc.gnu.org
Normally, with PIE, GCC accesses globals that are extern to the module
using GOT. This is two
Normally, with PIE, GCC accesses globals that are extern to the module
using GOT. This is two instructions, one to get the address of the global
from GOT and the other to get the value. Examples:
---
extern int a_glob;
int
main ()
{
return a_glob;
}
---
With PIE, the generated code accesses g
