From: "Zhangjian (Bamvor)" <bamvor.zhangjian@huawei.com>
To: Yury Norov <ynorov@caviumnetworks.com>, <arnd@arndb.de>,
<catalin.marinas@arm.com>, <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Cc: <pinskia@gmail.com>, <Prasun.Kapoor@caviumnetworks.com>,
<schwab@suse.de>, <broonie@kernel.org>,
<heiko.carstens@de.ibm.com>, <agraf@suse.de>,
<klimov.linux@gmail.com>, <jan.dakinevich@gmail.com>,
<schwidefsky@de.ibm.com>, <Nathan_Lynch@mentor.com>,
<joseph@codesourcery.com>,
<christoph.muellner@theobroma-systems.com>,
"Zhangjian (Bamvor)" <bamvor.zhangjian@huawei.com>
Subject: Re: [RFC5 PATCH v6 00/21] ILP32 for ARM64
Date: Fri, 29 Jan 2016 17:59:33 +0800 [thread overview]
Message-ID: <56AB3805.1040308@huawei.com> (raw)
In-Reply-To: <1452792198-10718-1-git-send-email-ynorov@caviumnetworks.com>
Hi,
On 1:22 2016/1/15, Yury Norov wrote:
> This is still RFC because we have no glibc yet, that correspnds new ABI
> introduced here. And so we cannot run tests. LP64 and AARCH32 tests show
> no regression though.
Hi,
Glad to see this version. I hope I could test it. Where could I find the
corresponding glibc? I could not find it in
http://github.com/norov/glibc.git. Or is there a plan to do it?
Besides compat wrappers discussed in these series, is there any other
blockers for upstream? I would suppose everyone is intestested in the
result of LTP...
Regards
Bamvor
>
> 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:
> - time_t, __kenel_off_t and other types turned to be 32-bit
> for compatibility reasons (after v5 discussion);
> - related changes applied to ILP32 syscall table and handlers;
> - ILP32 VDSO code excluded. It's not mandatory, and caused questions
> during review process. We definitely make sure we will follow up
> with a VDSO later on because it is needed for performance reasons;
> - fixed build issues with different combinations of AARCH32 / ILP32
> enabling in config;
> - ILP32 TLS bug fixed;
> - entry32-common.S introduced to hold wrappers needed for both ILP32
> and AARCH32_EL0;
> - documentation updated according to latest changes;
> - rebased to the current head;
> - coding style re-checked;
> - ILP32 syscall table turned around.
>
> rfc3:
> - all structures and system calls are just like AARCH32 ones now. with 2
> exceptions: syscalls that take 64-bit parameter in 2 32-bit regosters
> are replaced with LP64 version; struct rt_sigframe is constructed both
> from LP64 and AARCH32 fields to be consistent with AARCH64 register set;
> - documentation rewritten accordingly;
> - common code for all 3 ABIs is moved to separated files for easy use,
> new headers and objects are introduced, incl: is_compat.h, thread_bits.h,
> signal_common.h, signal32_common.h.
> - ILP32 VDSO code restored, Nathans comments are addressed;
> - patch "arm64: ilp32: force IPC_64 in msgctl, shmctl, semctl" removed, as
> Arnd suggested general solution for IPC_64 problem.
>
> rfc4:
> - sys_ilp32.c syscall list is fixed according to comments;
> - binfmt_elf32.c and binfmt_ilp32.c are introduced to host the code handling
> corresponding formats;
> - statfs64, fstsatfs64 and mmap wrappers are removed;
> - rebased on v4.4-rc8 + http://www.spinics.net/lists/kernel/msg2151759.html
>
> rfc5:
> - addressed rfc4 comments;
> - turned s390 compat wrappers to be generic and applied it to arm64/ilp32.
> Heiko Carsten and Martin Schwidefsky added to CC as s390 maintainers.
>
>
> Andrew Pinski (6):
> arm64: ensure the kernel is compiled for LP64
> arm64: rename COMPAT to AARCH32_EL0 in Kconfig
> arm64: change some CONFIG_COMPAT over to use CONFIG_AARCH32_EL0
> instead
> 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: add ARM64_ILP32 to Kconfig
>
> Bamvor Jian Zhang (1):
> arm64: compat: change config dependences to aarch32
>
> Philipp Tomsich (1):
> arm64:ilp32: add vdso-ilp32 and use for signal return
>
> Yury Norov (13):
> 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: ptrace: handle ptrace_request differently for aarch32 and ilp32
> arm64: signal: wrap struct ucontext, fp and lr with struct sigframe
> arm64: signal: share lp64 signal routines to ilp32
> arm64: signal32: move ilp32 and aarch32 common code to separated file
> arm64: ilp32: introduce ilp32-specific handlers for sigframe
> all: s390: make compat wrappers the generic solution
> arm64: ilp32: wrap syscalls to remove top 32-bit vulnerability
>
> Documentation/arm64/ilp32.txt | 13 ++
> arch/Kconfig | 4 +
> arch/arm64/Kconfig | 17 +-
> arch/arm64/Makefile | 5 +
> arch/arm64/include/asm/compat.h | 19 +-
> arch/arm64/include/asm/compat_wrapper.h | 14 ++
> arch/arm64/include/asm/elf.h | 32 +--
> arch/arm64/include/asm/fpsimd.h | 2 +-
> arch/arm64/include/asm/hwcap.h | 6 +-
> arch/arm64/include/asm/is_compat.h | 84 ++++++++
> arch/arm64/include/asm/memory.h | 3 +-
> arch/arm64/include/asm/processor.h | 11 +-
> arch/arm64/include/asm/ptrace.h | 2 +-
> arch/arm64/include/asm/signal32.h | 6 +-
> arch/arm64/include/asm/signal32_common.h | 25 +++
> arch/arm64/include/asm/signal_common.h | 39 ++++
> arch/arm64/include/asm/signal_ilp32.h | 34 ++++
> arch/arm64/include/asm/thread_info.h | 3 +-
> arch/arm64/include/asm/unistd.h | 11 +-
> arch/arm64/include/asm/unistd32.h | 2 +-
> arch/arm64/include/asm/vdso.h | 6 +
> arch/arm64/include/uapi/asm/bitsperlong.h | 9 +-
> arch/arm64/kernel/Makefile | 12 +-
> arch/arm64/kernel/asm-offsets.c | 2 +-
> arch/arm64/kernel/binfmt_elf32.c | 33 ++++
> arch/arm64/kernel/binfmt_ilp32.c | 91 +++++++++
> arch/arm64/kernel/cpufeature.c | 8 +-
> arch/arm64/kernel/cpuinfo.c | 4 +-
> arch/arm64/kernel/entry.S | 18 +-
> arch/arm64/kernel/entry_ilp32.S | 23 +++
> arch/arm64/kernel/head.S | 2 +-
> arch/arm64/kernel/hw_breakpoint.c | 10 +-
> arch/arm64/kernel/perf_regs.c | 2 +-
> arch/arm64/kernel/process.c | 5 +-
> arch/arm64/kernel/ptrace.c | 65 ++++++-
> arch/arm64/kernel/signal.c | 47 +++--
> arch/arm64/kernel/signal32.c | 85 --------
> arch/arm64/kernel/signal32_common.c | 115 +++++++++++
> arch/arm64/kernel/signal_ilp32.c | 128 ++++++++++++
> arch/arm64/kernel/sys32.c | 1 +
> arch/arm64/kernel/sys_ilp32.c | 69 +++++++
> arch/arm64/kernel/traps.c | 5 +-
> 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 | 95 +++++++++
> arch/arm64/kernel/vdso.c | 65 +++++--
> arch/s390/Kconfig | 1 +
> arch/s390/include/asm/compat_wrapper.h | 25 +++
> arch/s390/kernel/Makefile | 2 +-
> arch/s390/kernel/compat_linux.c | 6 +
> arch/s390/kernel/compat_wrapper.c | 179 -----------------
> drivers/clocksource/arm_arch_timer.c | 2 +-
> include/linux/compat_wrapper.h | 270 ++++++++++++++++++++++++++
> include/linux/ptrace.h | 6 +
> include/linux/thread_bits.h | 55 ++++++
> include/linux/thread_info.h | 44 +----
> include/uapi/asm-generic/unistd.h | 224 ++++++++++-----------
> kernel/Makefile | 1 +
> kernel/compat_wrapper.c | 167 ++++++++++++++++
> kernel/ptrace.c | 10 +-
> 61 files changed, 1777 insertions(+), 554 deletions(-)
> create mode 100644 Documentation/arm64/ilp32.txt
> create mode 100644 arch/arm64/include/asm/compat_wrapper.h
> 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/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 arch/s390/include/asm/compat_wrapper.h
> delete mode 100644 arch/s390/kernel/compat_wrapper.c
> create mode 100644 include/linux/compat_wrapper.h
> create mode 100644 include/linux/thread_bits.h
> create mode 100644 kernel/compat_wrapper.c
>
next prev parent reply other threads:[~2016-01-29 9:59 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-14 17:22 [RFC5 PATCH v6 00/21] ILP32 for ARM64 Yury Norov
2016-01-14 17:22 ` [PATCH v6 01/21] arm64: ilp32: add documentation on the ILP32 ABI " Yury Norov
2016-01-14 17:22 ` [PATCH v6 02/21] arm64: ensure the kernel is compiled for LP64 Yury Norov
2016-01-14 17:23 ` [PATCH v6 03/21] arm64: rename COMPAT to AARCH32_EL0 in Kconfig Yury Norov
2016-01-14 17:23 ` [PATCH v6 04/21] arm64: change some CONFIG_COMPAT over to use CONFIG_AARCH32_EL0 instead Yury Norov
2016-01-14 17:23 ` [PATCH v6 05/21] arm64: compat: change config dependences to aarch32 Yury Norov
2016-01-14 17:23 ` [PATCH v6 06/21] arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64 Yury Norov
2016-01-14 17:23 ` [PATCH v6 07/21] thread: move thread bits accessors to separated file Yury Norov
2016-01-14 17:23 ` [PATCH v6 08/21] arm64: introduce is_a32_task and is_a32_thread (for AArch32 compat) Yury Norov
2016-01-14 17:23 ` [PATCH v6 09/21] arm64: ilp32: add is_ilp32_compat_{task,thread} and TIF_32BIT_AARCH64 Yury Norov
2016-01-14 17:23 ` [PATCH v6 10/21] arm64: introduce binfmt_elf32.c Yury Norov
2016-01-14 17:23 ` [PATCH v6 11/21] arm64: ilp32: introduce binfmt_ilp32.c Yury Norov
2016-01-14 17:23 ` [PATCH v6 12/21] arm64: ptrace: handle ptrace_request differently for aarch32 and ilp32 Yury Norov
2016-01-14 17:23 ` [PATCH v6 13/21] arm64:ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it Yury Norov
2016-01-14 17:23 ` [PATCH v6 14/21] arm64: signal: wrap struct ucontext, fp and lr with struct sigframe Yury Norov
2016-01-14 17:23 ` [PATCH v6 15/21] arm64: signal: share lp64 signal routines to ilp32 Yury Norov
2016-01-14 17:23 ` [PATCH v6 16/21] arm64: signal32: move ilp32 and aarch32 common code to separated file Yury Norov
2016-01-14 17:23 ` [PATCH v6 17/21] arm64: ilp32: introduce ilp32-specific handlers for sigframe Yury Norov
2016-02-29 8:27 ` Andreas Schwab
2016-01-14 17:23 ` [PATCH v6 18/21] arm64:ilp32: add vdso-ilp32 and use for signal return Yury Norov
2016-01-14 17:23 ` [PATCH v6 19/21] arm64:ilp32: add ARM64_ILP32 to Kconfig Yury Norov
2016-01-14 17:23 ` [PATCH v6 20/21] all: s390: make compat wrappers the generic solution Yury Norov
2016-01-14 18:11 ` Yury Norov
2016-01-15 12:46 ` Heiko Carstens
2016-01-19 17:52 ` Yury Norov
2016-01-20 8:16 ` Heiko Carstens
2016-01-20 12:17 ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 21/21] arm64: ilp32: wrap syscalls to remove top 32-bit vulnerability Yury Norov
2016-01-18 13:18 ` [RFC5 PATCH v6 00/21] ILP32 for ARM64 Zhangjian (Bamvor)
2016-01-18 13:26 ` Andreas Schwab
2016-01-18 13:41 ` Bamvor Zhang Jian
2016-01-29 9:59 ` Zhangjian (Bamvor) [this message]
2016-01-29 17:09 ` Yury Norov
2016-01-30 4:15 ` Zhangjian (Bamvor)
2016-02-18 22:35 ` Yury Norov
2016-02-19 8:23 ` Arnd Bergmann
2016-02-19 12:59 ` Yury Norov
2016-02-19 14:06 ` Arnd Bergmann
2016-02-29 15:39 ` Yury Norov
2016-02-29 16:00 ` Andreas Schwab
2016-02-29 16:30 ` Arnd Bergmann
2016-02-25 10:50 ` Andreas Schwab
2016-02-25 20:28 ` Yury Norov
2016-03-18 10:28 ` Zhangjian (Bamvor)
2016-03-18 15:49 ` Yury Norov
2016-03-18 15:55 ` Alexander Graf
2016-03-18 16:46 ` Yury Norov
2016-03-20 8:12 ` Zhangjian (Bamvor)
2016-03-21 11:23 ` Zhangjian (Bamvor)
2016-03-21 18:43 ` Yury Norov
2016-03-22 1:49 ` Yury Norov
2016-03-21 9:07 ` Andreas Schwab
2016-03-21 9:43 ` Arnd Bergmann
2016-03-21 10:52 ` Andreas Schwab
2016-03-21 17:02 ` Arnd Bergmann
2016-03-26 12:36 ` Zhangjian (Bamvor)
2016-03-29 10:58 ` Arnd Bergmann
2016-03-29 12:01 ` Yury Norov
2016-03-29 12:42 ` Arnd Bergmann
2016-03-29 13:21 ` Zhangjian (Bamvor)
2016-03-29 13:27 ` Arnd Bergmann
2016-03-29 15:54 ` Joseph Myers
2016-03-29 19:30 ` Arnd Bergmann
2016-03-29 20:15 ` Joseph Myers
2016-03-29 20:24 ` Arnd Bergmann
2016-03-29 21:00 ` Joseph Myers
2016-03-29 21:39 ` Arnd Bergmann
2016-03-31 7:35 ` Zhangjian (Bamvor)
2016-03-21 18:40 ` Yury Norov
2016-03-26 13:08 ` Zhangjian (Bamvor)
2016-03-26 13:45 ` Zhangjian (Bamvor)
2016-03-26 22:46 ` Yury Norov
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