linux/arch/x86_64
Andi Kleen cf8dc57cba x86_64: increase VDSO_TEXT_OFFSET for ancient binutils
For some reason old binutils genertate larger headers so increase the text
offset of the vdso to avoid linker errors.

Roland McGrath explains:
  "There are extra symbols in the '.dynsym' section that are responsible
   for the size difference (They also cause corresponding inflation in
   '.gnu.version')

   Older ld's wrongly generated these unneeded symbols in .dynsym.  This
   was fixed not all that long ago (2006); binutils-2.17.50.0.6 might be
   the first fixed version, but I have not verified for sure where the
   cutoff was.

   The unneeded symbols et al from old ld add almost 700 bytes excess.
   This limits fairly tightly the amount by which the actual text and
   data in the vDSO can grow in the future without pushing the whole
   file over 4kb.  If it does grow later on, we should consider changing
   the layout with a config option or something to pack it better
   without that padding, when building the kernel with newer binutils."

Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Roland McGrath <roland@redhat.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-01 19:21:30 -07:00
..
boot x86_64: Early segment setup for VT 2007-08-11 15:58:13 -07:00
crypto [CRYPTO] api: Get rid of flags argument to setkey 2006-09-21 11:41:02 +10:00
ia32 x86_64: Zero extend all registers after ptrace in 32bit entry path. 2007-09-21 09:52:07 -07:00
kernel Revert "x86-64: Disable local APIC timer use on AMD systems with C1E" 2007-09-26 15:43:41 -07:00
lib Do not replace whole memcpy in apply alternatives 2007-08-12 01:42:37 -07:00
mm x86-64: page faults from user mode are always user faults 2007-09-19 11:37:14 -07:00
oprofile [PATCH] Move Kprobes and Oprofile to "Instrumentation Support" menu 2005-11-07 07:53:35 -08:00
pci x86: Work around mmio config space quirk on AMD Fam10h 2007-08-11 15:58:12 -07:00
vdso x86_64: increase VDSO_TEXT_OFFSET for ancient binutils 2007-10-01 19:21:30 -07:00
Kconfig Revert "x86_64: Quicklist support for x86_64" 2007-09-21 12:09:41 -07:00
Kconfig.debug Allow DEBUG_RODATA and KPROBES to co-exist 2007-06-21 16:02:50 -07:00
Makefile x86_64: Check for .cfi_rel_offset in CFI probe 2007-08-18 10:25:25 -07:00
defconfig PM: Fix dependencies of CONFIG_SUSPEND and CONFIG_HIBERNATION 2007-08-31 01:42:22 -07:00