Messages in this thread | | | From | Dave Martin <> | Subject | [PATCH 0/3] arm64/sve: UAPI: Disentangle ptrace.h from sigcontext.h | Date | Tue, 11 Dec 2018 19:26:44 +0000 |
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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
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