Andy Lutomirski 88a7c26af8 perf: Move task_pt_regs sampling into arch code ...

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 <[email protected]>
Signed-off-by: Andy Lutomirski <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: [email protected]
Cc: Wu Fengguang <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Arjan van de Ven <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Jean Pihet <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Mark Salter <[email protected]>
Cc: Russell King <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/e431cd4c18c2e1c44c774f10758527fb2d1025c4.1420396372.git.luto@amacapital.net
Signed-off-by: Ingo Molnar <[email protected]>

2015-01-09 11:12:28 +01:00

..

callchain.c

Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

2014-10-15 07:48:18 +02:00

core.c

perf: Move task_pt_regs sampling into arch code

2015-01-09 11:12:28 +01:00

hw_breakpoint.c

perf: Fix and clean up initialization of pmu::event_idx

2014-10-28 10:51:01 +01:00

internal.h

perf: Fix arch_perf_out_copy_user default

2013-11-06 12:34:25 +01:00

Makefile

…

ring_buffer.c

perf: Optimize ring-buffer write by depending on control dependencies

2013-12-11 15:53:22 +01:00

uprobes.c

Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

2014-12-15 15:52:01 -08:00