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authorWill Deacon <will.deacon@arm.com>2012-07-06 15:50:14 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-07-09 17:44:14 +0100
commitad722541147e6e517a2077e3d944105e7bc4fa8e (patch)
treed69c7f9399e1407ec3300aa73b2467294972a087 /arch/arm/lib
parent5125430cccc41f67bfe024394a302901034f6d39 (diff)
downloadlinux-linaro-stable-ad722541147e6e517a2077e3d944105e7bc4fa8e.tar.gz
ARM: 7456/1: ptrace: provide separate functions for tracing syscall {entry,exit}
The syscall_trace on ARM takes a `why' parameter to indicate whether or not we are entering or exiting a system call. This can be confusing for people looking at the code since (a) it conflicts with the why register alias in the entry assembly code and (b) it is not immediately clear what it represents. This patch splits up the syscall_trace function into separate wrappers for syscall entry and exit, allowing the low-level syscall handling code to branch to the appropriate function. Reported-by: Al Viro <viro@zeniv.linux.org.uk> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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