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Stephane Eranian 60e2364e60 perf: Add ability to sample machine state on interrupt 
Enable capture of interrupted machine state for each sample.

Registers to sample are passed per event in the sample_regs_intr bitmask.

To sample interrupt machine state, the PERF_SAMPLE_INTR_REGS must be passed in
sample_type.

The list of available registers is arch dependent and provided by asm/perf_regs.h

Registers are laid out as u64 in the order of the bit order of sample_intr_regs.

This patch also adds a new ABI version PERF_ATTR_SIZE_VER4 because we extend
the perf_event_attr struct with a new u64 field.

Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: cebbert.lkml@gmail.com
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-api@vger.kernel.org
Link: http://lkml.kernel.org/r/1411559322-16548-2-git-send-email-eranian@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-11-16 11:41:57 +01:00
..
bpf
bpf: split eBPF out of NET
2014-10-27 19:09:59 -04:00
configs
x86: Add "make tinyconfig" to configure the tiniest possible kernel
2014-08-08 16:30:24 -07:00
debug
kdb: replace strnicmp with strncasecmp
2014-10-14 02:18:25 +02:00
events
perf: Add ability to sample machine state on interrupt
2014-11-16 11:41:57 +01:00
gcov
gcov: add ARM64 to GCOV_PROFILE_ALL
2014-10-29 16:33:14 -07:00
irq
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
locking
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-10-13 15:51:40 +02:00
power
PM / Sleep: fix recovery during resuming from hibernation
2014-10-27 18:42:26 +01:00
printk
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
rcu
rcu: Make rcu_barrier() understand about missing rcuo kthreads
2014-10-28 13:24:13 -07:00
sched
sched/dl: Fix preemption checks
2014-10-28 10:46:10 +01:00
time
clockevents: Prevent shift out of bounds
2014-10-25 10:43:15 +02:00
trace
tracing/syscalls: Ignore numbers outside NR_syscalls' range
2014-10-30 20:58:38 -04:00
.gitignore
…
acct.c
acct: eliminate compile warning
2014-10-09 22:26:04 -04:00
async.c
kernel/async.c: switch to pr_foo()
2014-10-09 22:26:04 -04:00
audit_tree.c
audit: rename audit_log_remove_rule to disambiguate for trees
2014-10-10 15:30:25 -04:00
audit_watch.c
audit: invalid op= values for rules
2014-09-23 16:37:53 -04:00
audit.c
Merge git://git.infradead.org/users/eparis/audit
2014-10-19 16:25:56 -07:00
audit.h
audit: reduce scope of audit_log_fcaps
2014-09-23 16:37:51 -04:00
auditfilter.c
Merge git://git.infradead.org/users/eparis/audit
2014-10-19 16:25:56 -07:00
auditsc.c
Merge git://git.infradead.org/users/eparis/audit
2014-10-19 16:25:56 -07:00
backtracetest.c
kernel/backtracetest.c: replace no level printk by pr_info()
2014-06-04 16:54:14 -07:00
bounds.c
page-cgroup: get rid of NR_PCG_FLAGS
2014-08-08 15:57:18 -07:00
capability.c
CAPABILITIES: remove undefined caps from all processes
2014-07-24 21:53:47 +10:00
cgroup_freezer.c
cgroup: rename cgroup_subsys->base_cftypes to ->legacy_cftypes
2014-07-15 11:05:09 -04:00
cgroup.c
Merge branch 'for-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
2014-10-10 07:26:02 -04:00
compat.c
compat: nanosleep: Clarify error handling
2014-09-06 12:58:18 +02:00
configs.c
…
context_tracking.c
sched: stop the unbound recursion in preempt_schedule_context()
2014-10-28 10:46:05 +01:00
cpu_pm.c
…
cpu.c
rcu: More on deadlock between CPU hotplug and expedited grace periods
2014-10-23 07:51:17 -07:00
cpuset.c
Merge branch 'for-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2014-10-10 07:24:40 -04:00
crash_dump.c
crash_dump: Make is_kdump_kernel() accessible from modules
2014-08-25 15:42:19 -07:00
cred.c
…
delayacct.c
delayacct: Remove braindamaged type conversions
2014-07-23 10:18:06 -07:00
dma.c
…
elfcore.c
…
exec_domain.c
kernel/exec_domain.c: code clean-up
2014-06-04 16:54:15 -07:00
exit.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-10-13 16:23:15 +02:00
extable.c
…
fork.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-10-13 16:23:15 +02:00
freezer.c
freezer: remove obsolete comments in __thaw_task()
2014-10-21 23:44:20 +02:00
futex_compat.c
…
futex.c
futex: Fix a race condition between REQUEUE_PI and task death
2014-10-26 16:16:18 +01:00
groups.c
kernel/groups.c: remove return value of set_groups
2014-04-03 16:21:05 -07:00
hung_task.c
kernel/hung_task.c: convert simple_strtoul to kstrtouint
2014-06-04 16:54:15 -07:00
irq_work.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
jump_label.c
…
kallsyms.c
kernel/kallsyms.c: use __seq_open_private()
2014-10-14 02:18:16 +02:00
kcmp.c
kcmp: fix standard comparison bug
2014-09-10 15:42:12 -07:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER
2014-07-16 14:57:13 +02:00
Kconfig.preempt
…
kexec.c
kexec: remove the unused function parameter
2014-10-14 02:18:21 +02:00
kmod.c
kernel/kmod: fix use-after-free of the sub_info structure
2014-10-29 16:33:14 -07:00
kprobes.c
kprobes: Skip kretprobe hit in NMI context to avoid deadlock
2014-08-08 10:38:04 +02:00
ksysfs.c
kobject: Make support for uevent_helper optional.
2014-04-25 12:00:49 -07:00
kthread.c
kernel/kthread.c: partial revert of 81c98869faa5 ("kthread: ensure locality of task_struct allocations")
2014-10-09 22:25:51 -04:00
latencytop.c
kernel/latencytop.c: convert seq_printf to seq_puts
2014-06-04 16:54:15 -07:00
Makefile
bpf: split eBPF out of NET
2014-10-27 19:09:59 -04:00
module_signing.c
…
module-internal.h
…
module.c
A single panic fix for a rare race, stable CC'd.
2014-10-18 10:24:26 -07:00
notifier.c
kprobes, notifier: Use NOKPROBE_SYMBOL macro in notifier
2014-04-24 10:26:39 +02:00
nsproxy.c
namespaces: Use task_lock and not rcu to protect nsproxy
2014-07-29 18:08:50 -07:00
padata.c
…
panic.c
panic: add TAINT_SOFTLOCKUP
2014-08-08 15:57:24 -07:00
params.c
kernel/param: consolidate __{start,stop}___param[] in <linux/moduleparam.h>
2014-10-14 02:18:28 +02:00
pid_namespace.c
…
pid.c
…
profile.c
kernel/profile.c: use static const char instead of static char
2014-06-06 16:08:13 -07:00
ptrace.c
sched: Remove proliferation of wait_on_bit() action functions
2014-07-16 15:10:39 +02:00
range.c
…
reboot.c
kernel: add support for kernel restart handler call chain
2014-09-26 00:00:06 -07:00
relay.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-04-12 14:49:50 -07:00
res_counter.c
kernel/res_counter.c: replace simple_strtoull by kstrtoull
2014-06-04 16:54:15 -07:00
resource.c
x86: optimize resource lookups for ioremap
2014-10-14 02:18:22 +02:00
seccomp.c
Merge branch 'x86-seccomp-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-10-14 02:27:06 +02:00
signal.c
Merge branch 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc
2014-08-09 09:58:12 -07:00
smp.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
smpboot.c
…
smpboot.h
…
softirq.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
stacktrace.c
…
stop_machine.c
kernel/stop_machine.c: kernel-doc warning fix
2014-06-04 16:54:15 -07:00
sys_ni.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-10-08 21:40:54 -04:00
sys.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-10-13 16:23:15 +02:00
sysctl_binary.c
dmaengine-3.17
2014-10-07 20:39:25 -04:00
sysctl.c
sched/fair: Fix division by zero sysctl_numa_balancing_scan_size
2014-10-28 10:46:04 +01:00
system_certificates.S
…
system_keyring.c
KEYS: validate certificate trust only with builtin keys
2014-07-17 09:35:17 -04:00
task_work.c
…
taskstats.c
scheduler: Replace __get_cpu_var with this_cpu_ptr
2014-08-26 13:45:45 -04:00
test_kprobes.c
kernel/test_kprobes.c: use current logging functions
2014-08-08 15:57:18 -07:00
torture.c
torture: Address race in module cleanup
2014-09-16 13:41:06 -07:00
tracepoint.c
tracing: syscall_regfunc() should not skip kernel threads
2014-06-21 00:15:26 -04:00
tsacct.c
sched: Make task->start_time nanoseconds based
2014-07-23 10:18:05 -07:00
uid16.c
…
up.c
…
user_namespace.c
proc: constify seq_operations
2014-08-08 15:57:22 -07:00
user-return-notifier.c
scheduler: Replace __get_cpu_var with this_cpu_ptr
2014-08-26 13:45:45 -04:00
user.c
kernel/user.c: drop unused field 'files' from user_struct
2014-06-04 16:54:16 -07:00
utsname_sysctl.c
sysctl: convert use of typedef ctl_table to struct ctl_table
2014-06-06 16:08:16 -07:00
utsname.c
namespaces: Use task_lock and not rcu to protect nsproxy
2014-07-29 18:08:50 -07:00
watchdog.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
workqueue_internal.h
workqueue: rename manager_mutex to attach_mutex
2014-05-20 10:59:32 -04:00
workqueue.c
workqueue: Use cond_resched_rcu_qs macro
2014-10-06 05:58:26 -07:00