• Kees Cook's avatar
    mm: fold arch_randomize_brk into ARCH_HAS_ELF_RANDOMIZE · 204db6ed
    Kees Cook authored
    The arch_randomize_brk() function is used on several architectures,
    even those that don't support ET_DYN ASLR. To avoid bulky extern/#define
    tricks, consolidate the support under CONFIG_ARCH_HAS_ELF_RANDOMIZE for
    the architectures that support it, while still handling CONFIG_COMPAT_BRK.
    Signed-off-by: 's avatarKees Cook <keescook@chromium.org>
    Cc: Hector Marco-Gisbert <hecmargi@upv.es>
    Cc: Russell King <linux@arm.linux.org.uk>
    Reviewed-by: 's avatarIngo Molnar <mingo@kernel.org>
    Cc: Catalin Marinas <catalin.marinas@arm.com>
    Cc: Will Deacon <will.deacon@arm.com>
    Cc: Ralf Baechle <ralf@linux-mips.org>
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Michael Ellerman <mpe@ellerman.id.au>
    Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
    Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
    Cc: Alexander Viro <viro@zeniv.linux.org.uk>
    Cc: Oleg Nesterov <oleg@redhat.com>
    Cc: Andy Lutomirski <luto@amacapital.net>
    Cc: "David A. Long" <dave.long@linaro.org>
    Cc: Andrey Ryabinin <a.ryabinin@samsung.com>
    Cc: Arun Chandran <achandran@mvista.com>
    Cc: Yann Droneaud <ydroneaud@opteya.com>
    Cc: Min-Hua Chen <orca.chen@gmail.com>
    Cc: Paul Burton <paul.burton@imgtec.com>
    Cc: Alex Smith <alex@alex-smith.me.uk>
    Cc: Markos Chandras <markos.chandras@imgtec.com>
    Cc: Vineeth Vijayan <vvijayan@mvista.com>
    Cc: Jeff Bailey <jeffbailey@google.com>
    Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com>
    Cc: Ben Hutchings <ben@decadent.org.uk>
    Cc: Behan Webster <behanw@converseincode.com>
    Cc: Ismael Ripoll <iripoll@upv.es>
    Cc: Jan-Simon Mller <dl9pf@gmx.de>
    Signed-off-by: 's avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: 's avatarLinus Torvalds <torvalds@linux-foundation.org>
    204db6ed
elf-randomize.h 544 Bytes