kernel.git/arch/arm/kernel/perf_regs.c, branch linux-4.11.y

sched/headers: Prepare for new header dependencies before moving code to

2017-03-02T07:42:36Z

We are going to split out of , which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder file that just maps to to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar

perf: Move task_pt_regs sampling into arch code

2015-01-09T10:12:28Z

On x86_64, at least, task_pt_regs may be only partially initialized in many contexts, so x86_64 should not use it without extra care from interrupt context, let alone NMI context. This will allow x86_64 to override the logic and will supply some scratch space to use to make a cleaner copy of user regs. Tested-by: Jiri Olsa Signed-off-by: Andy Lutomirski Signed-off-by: Peter Zijlstra (Intel) Cc: Stephane Eranian Cc: chenggang.qcg@taobao.com Cc: Wu Fengguang Cc: Namhyung Kim Cc: Mike Galbraith Cc: Arjan van de Ven Cc: David Ahern Cc: Arnaldo Carvalho de Melo Cc: Catalin Marinas Cc: Jean Pihet Cc: Linus Torvalds Cc: Mark Salter Cc: Russell King Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/e431cd4c18c2e1c44c774f10758527fb2d1025c4.1420396372.git.luto@amacapital.net Signed-off-by: Ingo Molnar

ARM: perf: add support for perf registers API

2013-09-30T15:41:50Z

This patch implements the functions required for the perf registers API, allowing the perf tool to interface kernel register dumps with libunwind in order to provide userspace backtracing. Cc: Jean Pihet Signed-off-by: Will Deacon