arm64: Expose ESR_EL1 information to user when SIGSEGV/SIGBUS

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This information is useful for instruction emulators to detect
read/write and access size without having to decode the faulting
instruction. The current patch exports it via sigcontext (struct
esr_context) and is only valid for SIGSEGV and SIGBUS.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Catalin Marinas 2013-09-16 15:19:27 +01:00

parent 0e0276d1e1

commit 15af1942dd

2 changed files with 17 additions and 0 deletions

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7

arch/arm64/include/uapi/asm/sigcontext.h

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10

arch/arm64/kernel/signal.c

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