linux-kernel - [PATCH v3 0/9] clean up vdso-layout.lds.S

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Date:	Tue, 16 Jun 2009 14:55:20 +0200
From:	Petr Tesarik <ptesarik@...e.cz>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, Andi Kleen <andi@...stfloor.org>,
	Roland McGrath <roland@...hat.com>,
	Petr Tesarik <ptesarik@...e.cz>
Subject: [PATCH v3 0/9] clean up vdso-layout.lds.S

The handling of various sections in the VDSO linker script
looks pretty haphazard. This patch series cleans it up in
these regards:

 - improve the coding style
 - remove superfluous sections
 - issue a linker error if a section is encountered which
   is known not to work
 - check that the .got section is empty, except for the
   three entries defined by the ABI
 - discard sections which are not useful to user-space

Petr Tesarik (9):
  x86: Adjust the coding style of vdso-layout.lds.S
  x86: Remove .sdata from the vDSO linker script
  x86: add .broken section to the vDSO linker script
  x86: mark altinstr-related sections in vDSO as broken
  x86: mark some standard sections as broken in a vDSO
  x86: move 32-bit vDSO padding from .data to .rodata
  x86: mark writable vDSO sections as broken
  x86: check the size of GOT in vDSO
  x86: remove .gnu.warning* sections from the vDSO

 arch/x86/vdso/Makefile          |    5 +-
 arch/x86/vdso/vdso-layout.lds.S |  158 ++++++++++++++++++++++++++++++++-------
 arch/x86/vdso/vdso32/int80.S    |    2 +-
 arch/x86/vdso/vdso32/syscall.S  |    2 +-
 4 files changed, 136 insertions(+), 31 deletions(-)

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