From: catalin.marinas@arm.com (Catalin Marinas)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 00/24] ILP32 for ARM64
Date: Tue, 14 Apr 2015 16:00:34 +0100 [thread overview]
Message-ID: <20150414150034.GF14546@e104818-lin.cambridge.arm.com> (raw)
In-Reply-To: <2069111.6po5Xr33Dn@wuerfel>
On Tue, Apr 14, 2015 at 04:07:36PM +0200, Arnd Bergmann wrote:
> For completeness, there is yet another option, which would be to use the
> exact system call table from arm64 and do all the emulation in user space
> rather than the kernel. This would however be the least compatible with
> existing source code, so you probably don't want to do that.
It would be great if this worked but I think we looked at it before and
it seems nice until you hit the futex stuff and robust lists (I don't
fully remember the details). Some of the structures (siginfo) would no
longer be POSIX compliant and some of them aren't only accessed via libc
to be able to create shadow copies.
--
Catalin
next prev parent reply other threads:[~2015-04-14 15:00 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-13 19:44 [PATCH v4 00/24] ILP32 for ARM64 Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 01/24] arm64:ilp32: add documentation on the ILP32 ABI " Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 02/24] arm64: ensure the kernel is compiled for LP64 Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 03/24] arm64: rename COMPAT to AARCH32_EL0 in Kconfig Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 04/24] arm64: change some CONFIG_COMPAT over to use CONFIG_AARCH32_EL0 instead Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 05/24] arm64:ilp32: expose 'kernel_long' as 'long long' for ILP32 Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 06/24] arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64 Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 07/24] arm64:ilp32: share signal structures between ILP32 and LP64 ABIs Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 08/24] arm64:ilp32: use 64bit syscall-names for ILP32 when passing 64bit registers Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 09/24] arm64:ilp32: use non-compat syscall names for ILP32 as for LP64 Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 10/24] arm64: introduce is_a32_task and is_a32_thread (for AArch32 compat) Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 11/24] arm64:ilp32: add is_ilp32_compat_{task, thread} and TIF_32BIT_AARCH64 Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 12/24] arm64:ilp32: COMPAT_USE_64BIT_TIME is true for ILP32 tasks Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 13/24] arm64:ilp32: share HWCAP between LP64 and ILP32 Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 14/24] arm64:ilp32 use the native LP64 'start_thread' for ILP32 threads Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 15/24] arm64:ilp32: support core dump generation for ILP32 Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 16/24] arm64: add support for starting ILP32 (ELFCLASS32) binaries Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 17/24] arm64:ilp32: add vdso-ilp32 and use for signal return Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 18/24] ptrace: Allow compat to use the native siginfo Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 19/24] arm64:ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 20/24] arm64:ilp32: use compat-syscalls for msgsnd and msgrcv for ILP32 Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 21/24] arm64:ilp32: use the native siginfo instead of the compat siginfo Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 22/24] arm64:ilp32: use compat for stack_t Philipp Tomsich
2015-05-05 0:03 ` Pinski, Andrew
2015-04-13 19:44 ` [PATCH v4 23/24] arm64:ilp32: change COMPAT_ELF_PLATFORM to report a a subplatform for ILP32 Philipp Tomsich
2015-04-13 19:44 ` [PATCH v4 24/24] arm64:ilp32: add ARM64_ILP32 to Kconfig Philipp Tomsich
2015-04-13 21:01 ` [PATCH v4 00/24] ILP32 for ARM64 Arnd Bergmann
2015-04-13 22:58 ` Dr. Philipp Tomsich
2015-04-14 9:33 ` Dr. Philipp Tomsich
2015-04-14 10:08 ` Arnd Bergmann
2015-04-14 10:45 ` Pinski, Andrew
2015-04-14 11:14 ` Arnd Bergmann
2015-04-14 11:50 ` Dr. Philipp Tomsich
2015-04-14 14:07 ` Arnd Bergmann
2015-04-14 14:54 ` Dr. Philipp Tomsich
2015-04-15 12:25 ` Arnd Bergmann
2015-04-14 15:00 ` Catalin Marinas [this message]
2015-04-14 22:28 ` Arnd Bergmann
2015-04-15 9:18 ` Dr. Philipp Tomsich
2015-04-15 10:01 ` Catalin Marinas
2015-04-15 15:15 ` Arnd Bergmann
2015-04-15 15:38 ` Catalin Marinas
2015-04-15 17:01 ` Dr. Philipp Tomsich
2015-04-15 17:22 ` Catalin Marinas
2015-04-15 22:25 ` Alexander Graf
2015-04-16 11:03 ` Catalin Marinas
2015-04-16 11:19 ` Dr. Philipp Tomsich
2015-04-16 11:33 ` Pinski, Andrew
2015-04-16 13:31 ` Catalin Marinas
2015-04-16 15:21 ` Arnd Bergmann
2015-04-17 9:01 ` Catalin Marinas
2015-04-17 13:17 ` Arnd Bergmann
2015-04-17 14:06 ` Alexander Graf
2015-04-17 14:46 ` Catalin Marinas
2015-04-17 15:15 ` Dr. Philipp Tomsich
2015-04-18 19:24 ` Arnd Bergmann
2015-05-04 10:29 ` Arnd Bergmann
2015-05-04 10:32 ` Dr. Philipp Tomsich
2015-05-04 14:43 ` Arnd Bergmann
2015-05-05 13:11 ` Arnd Bergmann
2015-04-17 15:49 ` Arnd Bergmann
2015-04-20 15:56 ` Catalin Marinas
2015-04-20 17:40 ` Arnd Bergmann
2015-04-20 14:37 ` Zhangjian (Bamvor)
2015-04-16 14:27 ` Catalin Marinas
2015-04-14 11:51 ` Pinski, Andrew
2015-04-14 14:56 ` Catalin Marinas
2015-04-14 13:38 ` Catalin Marinas
2015-04-14 14:47 ` Catalin Marinas
2015-04-14 15:29 ` Dr. Philipp Tomsich
2015-04-14 16:55 ` Catalin Marinas
2015-04-15 10:31 ` Dr. Philipp Tomsich
2015-04-15 12:47 ` Arnd Bergmann
2015-04-15 12:42 ` Arnd Bergmann
2015-04-14 15:44 ` Arnd Bergmann
2015-04-15 11:22 ` Catalin Marinas
2015-04-15 11:50 ` Dr. Philipp Tomsich
2015-04-15 15:49 ` Catalin Marinas
2015-04-14 9:40 ` Arnd Bergmann
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