From: Dave Martin <Dave.Martin@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, Will Deacon <will.deacon@arm.com>,
Alan Hayward <alan.hayward@arm.com>,
Szabolcs Nagy <szabolcs.nagy@arm.com>
Subject: [PATCH 0/3] arm64/sve: UAPI: Disentangle ptrace.h from sigcontext.h
Date: Tue, 11 Dec 2018 19:26:44 +0000 [thread overview]
Message-ID: <1544556407-19897-1-git-send-email-Dave.Martin@arm.com> (raw)
This patch refactors the UAPI header definitions for the Arm SVE
extension to avoid multiple-definition problems when userspace mixes its
own sigcontext.h definitions with the kernel's ptrace.h (which is
apparently routine).
A common backend header is created to hold common definitions, suitably
namespaced, and with an appropriate header guard.
See the commit message in patch 3 for further explanation of why this
is needed.
Because of the non-trivial header guard in the new sve_context.h, patch
1 adds support to headers_install.sh to munge #if defined(_UAPI_FOO) in
a similar way to the current handling of #ifndef _UAPI_FOO.
Dave Martin (3):
kbuild: install_headers.sh: Strip _UAPI from #if-defined() guards
arm64/sve: ptrace: Fix SVE_PT_REGS_OFFSET definition
arm64/sve: Disentangle <uapi/asm/ptrace.h> from
<uapi/asm/sigcontext.h>
arch/arm64/include/uapi/asm/ptrace.h | 39 ++++++++++-----------
arch/arm64/include/uapi/asm/sigcontext.h | 56 +++++++++++++++----------------
arch/arm64/include/uapi/asm/sve_context.h | 50 +++++++++++++++++++++++++++
scripts/headers_install.sh | 1 +
4 files changed, 97 insertions(+), 49 deletions(-)
create mode 100644 arch/arm64/include/uapi/asm/sve_context.h
--
2.1.4
next reply other threads:[~2018-12-11 19:26 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-11 19:26 Dave Martin [this message]
2018-12-11 19:26 ` [PATCH 1/3] kbuild: install_headers.sh: Strip _UAPI from #if-defined() guards Dave Martin
2018-12-11 19:26 ` [PATCH 2/3] arm64/sve: ptrace: Fix SVE_PT_REGS_OFFSET definition Dave Martin
2018-12-11 19:26 ` [PATCH 3/3] arm64/sve: Disentangle <uapi/asm/ptrace.h> from <uapi/asm/sigcontext.h> Dave Martin
2018-12-15 9:20 ` kbuild test robot
2018-12-18 12:14 ` Dave Martin
2018-12-19 15:11 ` Szabolcs Nagy
2018-12-19 15:23 ` Dave Martin
2018-12-19 15:26 ` Szabolcs Nagy
2018-12-14 18:13 ` [PATCH 0/3] arm64/sve: UAPI: Disentangle ptrace.h from sigcontext.h Szabolcs Nagy
2018-12-14 18:25 ` Dave Martin
2018-12-14 19:00 ` Szabolcs Nagy
2018-12-14 19:28 ` Dave P Martin
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