Re: [PATCH v8 00/20] ILP32 for ARM64

From: Bamvor Zhang
Date: Fri Feb 02 2018 - 03:58:15 EST

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Hi, Yury

As I left huawei few month ago. My account of linaro is invalid. You
could send to my personal email(bamv2005@xxxxxxxxx).

Sorry for inconvenience.

Regards

Bamvor

On Fri, Feb 2, 2018 at 4:16 PM, Yury Norov <ynorov@xxxxxxxxxxxxxxxxxx> wrote:
> Hi Catalin, all
>
> (Exclude Bamvor as his email became invalid)
>
> This is 4.15-based kernel.
> https://github.com/norov/linux/commits/ilp32-4.15
>
> I tested it with LTP, no regressions found.
>
> Kernel v4.15 incorporates SVE series from Dave Martin, so I updated ILP32
> patches to agree with it. SVE-related changes are mostly in patches:
> arm64: ilp32: introduce ilp32-specific handlers for sigframe and ucontext
> arm64: signal32: move ilp32 and aarch32 common code to separated file
> arm64: signal: share lp64 signal structures and routines to ilp32
> arm64: ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it
>
> Dave kindly reviewed that patches and proposed improvements:
> https://www.spinics.net/lists/arm-kernel/msg629221.html
>
> There's no ABI-related changes proposed, or urgent fixes; so I'll rework
> signal subsystem during 4.16 cycle.
>
> Are there any news with upstreaming this series?
>
> Thanks,
> Yury
>
> On Mon, Jun 19, 2017 at 06:49:43PM +0300, Yury Norov wrote:
>> This series enables aarch64 with ilp32 mode.
>>
>> As supporting work, it introduces ARCH_32BIT_OFF_T configuration
>> option that is enabled for existing 32-bit architectures but disabled
>> for new arches (so 64-bit off_t userspace type is used by new userspace).
>> Also it deprecates getrlimit and setrlimit syscalls prior to prlimit64.
>>
>> This version is based on linux-next from 2017-06-16. It works with
>> glibc-2.25, and tested with LTP, glibc testsuite, trinity, lmbench,
>> CPUSpec.
>>
>> Patches 1, 2, 3 and 8 are general, and may be applied separately.
>>
>> Kernel, GLIBC and OpenSUSE-based distro:
>> https://github.com/norov/linux/tree/ilp32-20170616.0
>> https://github.com/norov/glibc/tree/dev9
>> https://build.opensuse.org/project/show/devel:ARM:Factory:Contrib:ILP32
>>
>> (GLIBC patches are managed by Steve Ellcey, so my tree is only for
>> reference.)
>>
>> Changes:
>> v3: https://lkml.org/lkml/2014/9/3/704
>> v4: https://lkml.org/lkml/2015/4/13/691
>> v5: https://lkml.org/lkml/2015/9/29/911
>> v6: https://lkml.org/lkml/2016/5/23/661
>> v7: https://lkml.org/lkml/2017/1/9/213
>> v8: - off_t referred in patches 2 and 13 stands for userspace type which is
>> underlined in corresponding patch comments and ARCH_32BIT_OFF_T config
>> option description;
>> - __IGNORE_getrlimit and __IGNORE_setrlimit are added to
>> scripts/checksyscalls.sh (patch 3);
>> - for CONFIG_COMPAT, bool changed to def_bool y and 'select COMPAT' is
>> dropped for AARCH32_EL0 and ARM64_ILP32 optiond (patches 5 and 20);
>> - x19 register is used to load TSK_TI_FLAGS in svc path in
>> arch/arm64/kernel/entry.S to avoid register clobbering (patch 14).
>> - ilp32 vdso-related files are syncronized wirh lp64 ones, mostly Makefiles
>> (patch 19);
>> - in arch/arm64/mm/mmap.c, arch_mmap_rnd() swithed to use is_compat_task()
>> (patch 9);
>> - rebased on next-20170616.
>>
>> Andrew Pinski (6):
>> arm64: rename COMPAT to AARCH32_EL0 in Kconfig
>> arm64: ensure the kernel is compiled for LP64
>> arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64
>> arm64: ilp32: add sys_ilp32.c and a separate table (in entry.S) to use
>> it
>> arm64: ilp32: introduce ilp32-specific handlers for sigframe and
>> ucontext
>> arm64:ilp32: add ARM64_ILP32 to Kconfig
>>
>> Philipp Tomsich (1):
>> arm64:ilp32: add vdso-ilp32 and use for signal return
>>
>> Yury Norov (13):
>> compat ABI: use non-compat openat and open_by_handle_at variants
>> 32-bit userspace ABI: introduce ARCH_32BIT_OFF_T config option
>> asm-generic: Drop getrlimit and setrlimit syscalls from default list
>> arm64: ilp32: add documentation on the ILP32 ABI for ARM64
>> thread: move thread bits accessors to separated file
>> arm64: introduce is_a32_task and is_a32_thread (for AArch32 compat)
>> arm64: ilp32: add is_ilp32_compat_{task,thread} and TIF_32BIT_AARCH64
>> arm64: introduce binfmt_elf32.c
>> arm64: ilp32: introduce binfmt_ilp32.c
>> arm64: ilp32: share aarch32 syscall handlers
>> arm64: signal: share lp64 signal routines to ilp32
>> arm64: signal32: move ilp32 and aarch32 common code to separated file
>> arm64: ptrace: handle ptrace_request differently for aarch32 and ilp32
>>
>> Documentation/arm64/ilp32.txt | 45 +++++++
>> arch/Kconfig | 15 +++
>> arch/arc/Kconfig | 1 +
>> arch/arc/include/uapi/asm/unistd.h | 1 +
>> arch/arm/Kconfig | 1 +
>> arch/arm64/Kconfig | 17 ++-
>> arch/arm64/Makefile | 8 ++
>> arch/arm64/include/asm/compat.h | 19 +--
>> arch/arm64/include/asm/elf.h | 40 ++----
>> arch/arm64/include/asm/fpsimd.h | 2 +-
>> arch/arm64/include/asm/ftrace.h | 2 +-
>> arch/arm64/include/asm/hwcap.h | 6 +-
>> arch/arm64/include/asm/is_compat.h | 90 ++++++++++++++
>> arch/arm64/include/asm/memory.h | 5 +-
>> arch/arm64/include/asm/processor.h | 11 +-
>> arch/arm64/include/asm/ptrace.h | 2 +-
>> arch/arm64/include/asm/seccomp.h | 2 +-
>> arch/arm64/include/asm/signal32.h | 9 +-
>> arch/arm64/include/asm/signal32_common.h | 27 ++++
>> arch/arm64/include/asm/signal_common.h | 33 +++++
>> arch/arm64/include/asm/signal_ilp32.h | 38 ++++++
>> arch/arm64/include/asm/syscall.h | 2 +-
>> arch/arm64/include/asm/thread_info.h | 4 +-
>> arch/arm64/include/asm/unistd.h | 6 +-
>> arch/arm64/include/asm/vdso.h | 6 +
>> arch/arm64/include/uapi/asm/bitsperlong.h | 9 +-
>> arch/arm64/include/uapi/asm/unistd.h | 13 ++
>> arch/arm64/kernel/Makefile | 8 +-
>> arch/arm64/kernel/asm-offsets.c | 9 +-
>> arch/arm64/kernel/binfmt_elf32.c | 37 ++++++
>> arch/arm64/kernel/binfmt_ilp32.c | 85 +++++++++++++
>> arch/arm64/kernel/cpufeature.c | 8 +-
>> arch/arm64/kernel/cpuinfo.c | 8 +-
>> arch/arm64/kernel/entry.S | 34 +++++-
>> arch/arm64/kernel/entry32.S | 80 ------------
>> arch/arm64/kernel/entry32_common.S | 107 ++++++++++++++++
>> arch/arm64/kernel/entry_ilp32.S | 22 ++++
>> arch/arm64/kernel/head.S | 2 +-
>> arch/arm64/kernel/hw_breakpoint.c | 8 +-
>> arch/arm64/kernel/perf_regs.c | 2 +-
>> arch/arm64/kernel/process.c | 7 +-
>> arch/arm64/kernel/ptrace.c | 80 ++++++++++--
>> arch/arm64/kernel/signal.c | 102 ++++++++++------
>> arch/arm64/kernel/signal32.c | 107 ----------------
>> arch/arm64/kernel/signal32_common.c | 135 ++++++++++++++++++++
>> arch/arm64/kernel/signal_ilp32.c | 170 ++++++++++++++++++++++++++
>> arch/arm64/kernel/sys_ilp32.c | 100 +++++++++++++++
>> arch/arm64/kernel/traps.c | 5 +-
>> arch/arm64/kernel/vdso-ilp32/.gitignore | 2 +
>> arch/arm64/kernel/vdso-ilp32/Makefile | 80 ++++++++++++
>> arch/arm64/kernel/vdso-ilp32/vdso-ilp32.S | 33 +++++
>> arch/arm64/kernel/vdso-ilp32/vdso-ilp32.lds.S | 95 ++++++++++++++
>> arch/arm64/kernel/vdso.c | 63 ++++++++--
>> arch/arm64/kernel/vdso/gettimeofday.S | 20 ++-
>> arch/arm64/kernel/vdso/vdso.S | 6 +-
>> arch/arm64/mm/mmap.c | 2 +-
>> arch/blackfin/Kconfig | 1 +
>> arch/c6x/include/uapi/asm/unistd.h | 1 +
>> arch/cris/Kconfig | 1 +
>> arch/frv/Kconfig | 1 +
>> arch/h8300/Kconfig | 1 +
>> arch/h8300/include/uapi/asm/unistd.h | 1 +
>> arch/hexagon/Kconfig | 1 +
>> arch/hexagon/include/uapi/asm/unistd.h | 1 +
>> arch/m32r/Kconfig | 1 +
>> arch/m68k/Kconfig | 1 +
>> arch/metag/Kconfig | 1 +
>> arch/metag/include/uapi/asm/unistd.h | 1 +
>> arch/microblaze/Kconfig | 1 +
>> arch/mips/Kconfig | 1 +
>> arch/mn10300/Kconfig | 1 +
>> arch/nios2/Kconfig | 1 +
>> arch/nios2/include/uapi/asm/unistd.h | 1 +
>> arch/openrisc/Kconfig | 1 +
>> arch/openrisc/include/uapi/asm/unistd.h | 1 +
>> arch/parisc/Kconfig | 1 +
>> arch/powerpc/Kconfig | 1 +
>> arch/score/Kconfig | 1 +
>> arch/score/include/uapi/asm/unistd.h | 1 +
>> arch/sh/Kconfig | 1 +
>> arch/sparc/Kconfig | 1 +
>> arch/tile/Kconfig | 1 +
>> arch/tile/include/uapi/asm/unistd.h | 1 +
>> arch/tile/kernel/compat.c | 3 +
>> arch/unicore32/Kconfig | 1 +
>> arch/unicore32/include/uapi/asm/unistd.h | 1 +
>> arch/x86/Kconfig | 1 +
>> arch/x86/um/Kconfig | 1 +
>> arch/xtensa/Kconfig | 1 +
>> drivers/clocksource/arm_arch_timer.c | 2 +-
>> include/linux/fcntl.h | 2 +-
>> include/linux/thread_bits.h | 63 ++++++++++
>> include/linux/thread_info.h | 65 ++--------
>> include/uapi/asm-generic/unistd.h | 10 +-
>> scripts/checksyscalls.sh | 5 +
>> 95 files changed, 1606 insertions(+), 407 deletions(-)
>> create mode 100644 Documentation/arm64/ilp32.txt
>> create mode 100644 arch/arm64/include/asm/is_compat.h
>> create mode 100644 arch/arm64/include/asm/signal32_common.h
>> create mode 100644 arch/arm64/include/asm/signal_common.h
>> create mode 100644 arch/arm64/include/asm/signal_ilp32.h
>> create mode 100644 arch/arm64/kernel/binfmt_elf32.c
>> create mode 100644 arch/arm64/kernel/binfmt_ilp32.c
>> create mode 100644 arch/arm64/kernel/entry32_common.S
>> create mode 100644 arch/arm64/kernel/entry_ilp32.S
>> create mode 100644 arch/arm64/kernel/signal32_common.c
>> create mode 100644 arch/arm64/kernel/signal_ilp32.c
>> 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
>> create mode 100644 include/linux/thread_bits.h
>>
>> --
>> 2.11.0

--
-----------------------------------------
arm64, kernel. opensuse
blog: http://aarch64.me
-----------------------------------------

Next message: Andrea Parri: "[PATCH 1/2] Documentation/memory-barriers.txt: cross-reference "tools/memory-model/""
Previous message: Dmitry Vyukov: "Re: possible deadlock in get_user_pages_unlocked"
In reply to: Yury Norov: "Re: [PATCH v8 00/20] ILP32 for ARM64"
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