linux-toradex.git/arch/arm64/include/asm/elf.h, branch v3.19 Linux kernel for Apalis and Colibri modules arm64: ASLR: Don't randomise text when randomise_va_space == 0 2014-10-24T14:47:49+00:00 Arun Chandran achandran@mvista.com 2014-10-10T11:31:24+00:00 92980405f3537136b8e81007a9df576762f49bbb 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 <achandran@mvista.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 
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 <achandran@mvista.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arm64: compat: add support for big-endian (BE8) AArch32 binaries 2013-10-25T14:59:35+00:00 Will Deacon will.deacon@arm.com 2013-10-11T13:52:12+00:00 a795a38eb91cf72c4a05e72a9c84e317ee179a48 This patch adds support for BE8 AArch32 tasks to the compat layer. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 
This patch adds support for BE8 AArch32 tasks to the compat layer.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arm64: ELF: add support for big-endian executables 2013-10-25T14:59:33+00:00 Will Deacon will.deacon@arm.com 2013-10-11T13:52:10+00:00 5436b5c8305b4ed37c5d11f96c1aaccca63c9ab2 This patch adds support for the aarch64_be ELF format to the AArch64 ELF loader. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 
This patch adds support for the aarch64_be ELF format to the AArch64 ELF
loader.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Move the EM_ARM and EM_AARCH64 definitions to uapi/linux/elf-em.h 2013-09-02T15:35:50+00:00 Dan Aloni alonid@stratoscale.com 2013-08-28T13:24:53+00:00 909e3ee4119f87b85c6e1b8534b2287ed1ea3ca2 Signed-off-by: Dan Aloni <alonid@stratoscale.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 
Signed-off-by: Dan Aloni <alonid@stratoscale.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arm64: elf: fix core dumping to match what glibc expects 2013-01-22T17:50:59+00:00 Will Deacon will.deacon@arm.com 2013-01-22T15:34:40+00:00 9cf2b72b25f3f6a5a1a46a4f36037e66de52465c 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: <stable@vger.kernel.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 
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: <stable@vger.kernel.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arm64: elf: fix core dumping definitions for GP and FP registers 2012-11-08T16:06:20+00:00 Will Deacon will.deacon@arm.com 2012-11-06T19:28:48+00:00 6ba1bc826d160fe4f32bcb188687dcca4bdfaf3d 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 <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 
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 <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arm64: ELF definitions 2012-09-17T12:42:07+00:00 Catalin Marinas catalin.marinas@arm.com 2012-03-05T11:49:30+00:00 f668cd1673aa2e645ae98b65c4ffb9dae2c9ac17 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 <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de> 
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 <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>