From Andrew Pinski <> Subject [PATCHv3 00/24] ILP32 support in ARM64 Date Wed, 3 Sep 2014 14:18:54 -0700 New version with all of the requested changes. Updated to the latest sources.



Notable changes from the previous versions:

VDSO code has been factored out to be easier to understand and easier to maintain.

Move the config option to the last thing that gets added.

Added some extra COMPAT_* macros for core dumping for easier usage.





Andrew Pinski (24):

ARM64: Force LP64 to compile the kernel

ARM64: Rename COMPAT to AARCH32_EL0 in Kconfig

ARM64: Change some CONFIG_COMPAT over to use CONFIG_AARCH32_EL0

instead

ARM64:ILP32: Set kernel_long to long long so we can reuse most of the

same syscalls as LP64

ARM64:UAPI: Set the correct __BITS_PER_LONG for ILP32

Allow for some signal structures to be the same between a 32bit ABI

and the 64bit ABI

ARM64:ILP32: Use the same size and layout of the signal structures

for ILP32 as for LP64

Allow a 32bit ABI to use the naming of the 64bit ABI syscalls to

avoid confusion of not splitting the registers

ARM64:ILP32: Use the same syscall names as LP64

ARM64: Introduce is_a32_task/is_a32_thread and TIF_AARCH32 and use

them in the correct locations

ARM64: Add is_ilp32_compat_task and is_ilp32_compat_thread

ARM64:ILP32: COMPAT_USE_64BIT_TIME is true for ILP32 tasks

ARM64:ILP32: Use the non compat HWCAP for ILP32

ARM64:ILP32 use the standard start_thread for ILP32 so the processor

state is not AARCH32

compat_binfmt_elf: coredump: Allow some core dump macros be

overridden for compat.

ARM64:ILP32: Support core dump for ILP32

ARM64: Add loading of ILP32 binaries

ARM64: Add vdso for ILP32 and use it for the signal return

ptrace: Allow compat to use the native siginfo

ARM64:ILP32: The native siginfo is used instead of the compat siginfo

ARM64:ILP32: Use a seperate syscall table as a few syscalls need to

be using the compat syscalls

ARM64:ILP32: Fix signal return for ILP32 when the user modified the

signal stack

ARM64: Add ARM64_ILP32 to Kconfig

Add documentation about ARM64 ILP32 ABI



Documentation/arm64/ilp32.txt | 57 +++++++

arch/arm64/Kconfig | 15 ++-

arch/arm64/Makefile | 4 +

arch/arm64/include/asm/arch_timer.h | 2 +-

arch/arm64/include/asm/compat.h | 59 ++++++++

arch/arm64/include/asm/elf.h | 100 ++++++++++++-

arch/arm64/include/asm/fpsimd.h | 2 +-

arch/arm64/include/asm/hwcap.h | 2 -

arch/arm64/include/asm/processor.h | 11 ++

arch/arm64/include/asm/ptrace.h | 2 +-

arch/arm64/include/asm/signal32.h | 4 +-

arch/arm64/include/asm/stat.h | 4 +-

arch/arm64/include/asm/syscalls.h | 4 +

arch/arm64/include/asm/thread_info.h | 1 +

arch/arm64/include/asm/unistd.h | 6 +-

arch/arm64/include/asm/vdso.h | 4 +

arch/arm64/include/uapi/asm/bitsperlong.h | 9 +-

arch/arm64/include/uapi/asm/posix_types.h | 8 +-

arch/arm64/include/uapi/asm/siginfo.h | 33 ++++

arch/arm64/include/uapi/asm/signal.h | 34 +++++

arch/arm64/include/uapi/asm/unistd.h | 6 +

arch/arm64/kernel/Makefile | 8 +-

arch/arm64/kernel/asm-offsets.c | 2 +-

arch/arm64/kernel/entry.S | 19 ++-

arch/arm64/kernel/head.S | 2 +-

arch/arm64/kernel/hw_breakpoint.c | 7 +-

arch/arm64/kernel/process.c | 6 +-

arch/arm64/kernel/ptrace.c | 52 +++++--

arch/arm64/kernel/signal.c | 38 +++++-

arch/arm64/kernel/sys_ilp32.c | 195 +++++++++++++++++++++++++

arch/arm64/kernel/traps.c | 4 +-

arch/arm64/kernel/vdso-ilp32/.gitignore | 2 +

arch/arm64/kernel/vdso-ilp32/Makefile | 72 +++++++++

arch/arm64/kernel/vdso-ilp32/vdso-ilp32.S | 33 ++++

arch/arm64/kernel/vdso-ilp32/vdso-ilp32.lds.S | 98 +++++++++++++

arch/arm64/kernel/vdso.c | 74 ++++++++--

fs/compat_binfmt_elf.c | 17 ++

include/linux/compat.h | 4 +

include/uapi/asm-generic/siginfo.h | 17 ++-

include/uapi/asm-generic/signal.h | 27 +++-

include/uapi/asm-generic/unistd.h | 6 +-

kernel/ptrace.c | 25 +++-

42 files changed, 989 insertions(+), 86 deletions(-)

create mode 100644 Documentation/arm64/ilp32.txt

create mode 100644 arch/arm64/kernel/sys_ilp32.c

create mode 100644 arch/arm64/kernel/vdso-ilp32/.gitignore

create mode 100644 arch/arm64/kernel/vdso-ilp32/Makefile

create mode 100644 arch/arm64/kernel/vdso-ilp32/vdso-ilp32.S

create mode 100644 arch/arm64/kernel/vdso-ilp32/vdso-ilp32.lds.S



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1.7.2.5







