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[PATCH 0/2] MIPS memory space randomization

Subject: [PATCH 0/2] MIPS memory space randomization
From: David Daney <>
Date: Mon, 19 Jul 2010 13:14:55 -0700
Cc: David Daney <>
Original-recipient: rfc822;
x86, PPC and SPARC will randomize the application heap and library
load addresses depending on the value of randomize_va_space.  This
patch set implements address space randomization for MIPS.

Tested with a 64-bit kernel (OCTEON) and verified, for all three ABIs,
that the result of 'cat /proc/self/maps' gives different values for
[heap] and shared libraries with each invocation.  The stack was
already randomized and also gets a different value for each

Someone may want to test it on a 32-bit kernel, but it should work
there as well.

I will reply with the two patches.

David Daney (2):
  MIPS: Randomize mmap if randomize_va_space is set
  MIPS: Enable heap randomization.

 arch/mips/include/asm/elf.h       |    5 ++++
 arch/mips/include/asm/processor.h |   11 ++++++++
 arch/mips/kernel/syscall.c        |   49 ++++++++++++++++++++++++++++++++++++-
 3 files changed, 64 insertions(+), 1 deletions(-)

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