[PATCH i386] Allow sibcalls in no-PLT PIC

[H.J. Lu]

On Fri, May 15, 2015 at 4:14 PM, H.J. Lu <hjl.tools@gmail.com> wrote:
> My relax branch proposal works even without LTO.
>

I will borrow GOTPCREL from x86-64 and do

[hjl@gnu-6 relax-4]$ cat b.S
call *foo@GOTPCREL(%eax)
[hjl@gnu-6 relax-4]$ ./as -32 -o b.o b.S
[hjl@gnu-6 relax-4]$ ./objdump -dwr b.o

b.o:     file format elf32-i386


Disassembly of section .text:

00000000 <.text>:
   0: ff 90 fc ff ff ff     call   *-0x4(%eax) 2: R_386_RELAX_GOT32 foo
[hjl@gnu-6 relax-4]$

And linker can turn it into

relax call foo

if foo is defined locally.

-- 
H.J.