From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v6 11/21] arm64: ilp32: introduce binfmt_ilp32.c
Date: Wed, 13 Jan 2016 00:05:28 +0100 [thread overview]
Message-ID: <28415384.BjJykMzeP5@wuerfel> (raw)
In-Reply-To: <20160112164641.GA9246@yury-N73SV>
On Tuesday 12 January 2016 19:46:41 Yury Norov wrote:
> On Fri, Jan 08, 2016 at 10:08:44AM +0100, Arnd Bergmann wrote:
> > On Friday 08 January 2016 02:34:29 Yury Norov wrote:
> > > +
> > > +#include "../../../fs/compat_binfmt_elf.c"
> > >
> >
> > This is the wrong file, you have to include fs/binfmt_elf.c, otherwise
> > you pick up the same definitions that you have for the other one.
> >
>
> I chose compat as it's how it wokrs now. It redefines some types like
> user_long_t, and I think it's neccessary for ILP32, as for aarch32.
I really think the double indirection adds way too much complexity
here, it makes it rather hard to understand what is going on, and
that leads to bugs.
fs/compat_binfmt_elf.c is not doing much at all, and most of it is not
actually needed if you just make a copy of that file and fill in the
data as needed. Some of the overrides (ELF_ARCH, ELF_PLATFORM, ELF_NREG,
ELF_HWCAP, ELF_HWCAP2) are identical between ilp32 and lp64 modes
for arm64, but are different for arm32 compat, so you don't even have
to override them at all.
Arnd
next prev parent reply other threads:[~2016-01-12 23:05 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-07 23:34 [RFC4 PATCH v6 00/21] ILP32 for ARM64 Yury Norov
2016-01-07 23:34 ` [PATCH v6 01/21] arm64: ilp32: add documentation on the ILP32 ABI " Yury Norov
2016-01-07 23:34 ` [PATCH v6 02/21] arm64: ensure the kernel is compiled for LP64 Yury Norov
2016-01-07 23:34 ` [PATCH v6 03/21] arm64: rename COMPAT to AARCH32_EL0 in Kconfig Yury Norov
2016-01-07 23:34 ` [PATCH v6 04/21] arm64: change some CONFIG_COMPAT over to use CONFIG_AARCH32_EL0 instead Yury Norov
2016-01-07 23:34 ` [PATCH v6 05/21] arm64: compat: fix wrong dependency Yury Norov
2016-01-08 8:49 ` Arnd Bergmann
2016-01-07 23:34 ` [PATCH v6 06/21] arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64 Yury Norov
2016-01-07 23:34 ` [PATCH v6 07/21] thread: move thread bits accessors to separated file Yury Norov
2016-01-07 23:34 ` [PATCH v6 08/21] arm64: introduce is_a32_task and is_a32_thread (for AArch32 compat) Yury Norov
2016-01-07 23:34 ` [PATCH v6 09/21] arm64: ilp32: add is_ilp32_compat_{task, thread} and TIF_32BIT_AARCH64 Yury Norov
2016-01-07 23:34 ` [PATCH v6 10/21] arm64: introduce binfmt_elf32.c Yury Norov
2016-01-07 23:34 ` [PATCH v6 11/21] arm64: ilp32: introduce binfmt_ilp32.c Yury Norov
2016-01-07 23:45 ` Yury Norov
2016-01-08 9:08 ` Arnd Bergmann
2016-01-12 16:46 ` Yury Norov
2016-01-12 23:05 ` Arnd Bergmann [this message]
2016-01-07 23:34 ` [PATCH v6 12/21] arm64:ilp32: share HWCAP between LP64 and ILP32 Yury Norov
2016-01-08 8:58 ` Arnd Bergmann
2016-01-07 23:34 ` [PATCH v6 13/21] arm64: ptrace: handle ptrace_request differently for aarch32 and ilp32 Yury Norov
2016-01-08 9:01 ` Arnd Bergmann
2016-01-07 23:34 ` [PATCH v6 14/21] arm64:ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it Yury Norov
2016-01-08 9:04 ` Arnd Bergmann
2016-01-08 9:21 ` Arnd Bergmann
2016-01-08 11:13 ` Yury Norov
2016-01-08 16:45 ` Arnd Bergmann
2016-01-13 16:21 ` Yury Norov
2016-01-07 23:34 ` [PATCH v6 15/21] arm64: signal: wrap struct ucontext, fp and lr with struct sigframe Yury Norov
2016-01-07 23:34 ` [PATCH v6 16/21] arm64: signal: share lp64 signal routines to ilp32 Yury Norov
2016-01-07 23:34 ` [PATCH v6 17/21] arm64: signal32: move ilp32 and aarch32 common code to separated file Yury Norov
2016-01-07 23:34 ` [PATCH v6 18/21] arm64: ilp32: introduce ilp32-specific handlers for sigframe Yury Norov
2016-01-07 23:34 ` [PATCH v6 19/21] arm64:ilp32: add vdso-ilp32 and use for signal return Yury Norov
2016-01-07 23:34 ` [PATCH v6 20/21] arm64:ilp32: change COMPAT_ELF_PLATFORM to report a a subplatform for ILP32 Yury Norov
2016-01-08 9:05 ` Arnd Bergmann
2016-01-07 23:34 ` [PATCH v6 21/21] arm64:ilp32: add ARM64_ILP32 to Kconfig Yury Norov
-- strict thread matches above, loose matches on Subject: below --
2016-01-14 17:22 [RFC5 PATCH v6 00/21] ILP32 for ARM64 Yury Norov
2016-01-14 17:23 ` [PATCH v6 11/21] arm64: ilp32: introduce binfmt_ilp32.c Yury Norov
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