talos-op-linux/arch/arm64/include/asm/elf.h, branch v4.4.4

mm: fold arch_randomize_brk into ARCH_HAS_ELF_RANDOMIZE

2015-04-14T23:49:05+00:00

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: Kees Cook Cc: Hector Marco-Gisbert Cc: Russell King Reviewed-by: Ingo Molnar Cc: Catalin Marinas Cc: Will Deacon Cc: Ralf Baechle Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Alexander Viro Cc: Oleg Nesterov Cc: Andy Lutomirski Cc: "David A. Long" Cc: Andrey Ryabinin Cc: Arun Chandran Cc: Yann Droneaud Cc: Min-Hua Chen Cc: Paul Burton Cc: Alex Smith Cc: Markos Chandras Cc: Vineeth Vijayan Cc: Jeff Bailey Cc: Michael Holzheu Cc: Ben Hutchings Cc: Behan Webster Cc: Ismael Ripoll Cc: Jan-Simon Mller Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

arm64: standardize mmap_rnd() usage

2015-04-14T23:49:05+00:00

In preparation for splitting out ET_DYN ASLR, this refactors the use of mmap_rnd() to be used similarly to arm and x86. This additionally enables mmap ASLR on legacy mmap layouts, which appeared to be missing on arm64, and was already supported on arm. Additionally removes a copy/pasted declaration of an unused function. Signed-off-by: Kees Cook Cc: Russell King Cc: Catalin Marinas Reviewed-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

arm64: ASLR: Don't randomise text when randomise_va_space == 0

2014-10-24T14:47:49+00:00

When user asks to turn off ASLR by writing "0" to /proc/sys/kernel/randomize_va_space there should not be any randomization to mmap base, stack, VDSO, libs, text and heap Currently arm64 violates this behavior by randomising text. Fix this by defining a constant ELF_ET_DYN_BASE. The randomisation of mm->mmap_base is done by setup_new_exec -> arch_pick_mmap_layout -> mmap_base -> mmap_rnd. Signed-off-by: Arun Chandran Signed-off-by: Catalin Marinas

arm64: compat: add support for big-endian (BE8) AArch32 binaries

2013-10-25T14:59:35+00:00

This patch adds support for BE8 AArch32 tasks to the compat layer. Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas

arm64: ELF: add support for big-endian executables

2013-10-25T14:59:33+00:00

This patch adds support for the aarch64_be ELF format to the AArch64 ELF loader. Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas

Move the EM_ARM and EM_AARCH64 definitions to uapi/linux/elf-em.h

2013-09-02T15:35:50+00:00

Signed-off-by: Dan Aloni Signed-off-by: Catalin Marinas

arm64: elf: fix core dumping to match what glibc expects

2013-01-22T17:50:59+00:00

The kernel's internal definition of ELF_NGREG uses struct pt_regs, which means that we disagree with userspace on the size of coredumps since glibc correctly uses the user-visible struct user_pt_regs. This patch fixes our ELF_NGREG definition to use struct user_pt_regs and introduces our own ELF_CORE_COPY_REGS to convert between the user and kernel structure definitions. Cc: Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas

arm64: elf: fix core dumping definitions for GP and FP registers

2012-11-08T16:06:20+00:00

struct user_fp does not exist for arm64, so use struct user_fpsimd_state instead for the ELF core dumping definitions. Furthermore, since we use regset-based core dumping, we do not need definitions for dump_task_regs and dump_fpu. Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas

arm64: ELF definitions

2012-09-17T12:42:07+00:00

This patch adds definitions for the ELF format, including personality personality setting and EXEC_PAGESIZE. The are only two hwcap definitions for 64-bit applications - HWCAP_FP and HWCAP_ASIMD. Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas Acked-by: Tony Lindgren Acked-by: Nicolas Pitre Acked-by: Olof Johansson Acked-by: Santosh Shilimkar Acked-by: Arnd Bergmann