[Bug c/11817] New: vargs produce 32 bit signed reference with -mcmodel=medium

[hoffman at cray dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11817

           Summary: vargs produce 32 bit signed reference with -
                    mcmodel=medium
           Product: gcc
           Version: 3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hoffman at cray dot com
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: x86_64-unknown-linux-gnu
  GCC host triplet: x86_64-unknown-linux-gnu

the following snippet of code:

void foo(int a,...)
{
}

produces relocation entries as:

Relocation section '.rela.text' at offset 0x4f8 contains 1 entries:
  Offset          Info           Type           Sym. Value    Sym. Name + Addend
00000000004b  00020000000b R_X86_64_32S      0000000000000000 .text + 83

Relocation section '.rela.eh_frame' at offset 0x510 contains 1 entries:
  Offset          Info           Type           Sym. Value    Sym. Name + Addend
000000000020  000200000001 R_X86_64_64       0000000000000000 .text + 0

which defeats the purpose of using -mcmodel=medium. the intent here
is to link an executable at text=0x80000000, and the signed 32 bit relocation
causes the linker to puke.

-mcmodel=medium does express all other relocations as R_X86_64_64
(except .debug)