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Naveen N. Rao 35b6f55aa9 trace/kprobes: Allow return probes with offsets and absolute addresses 
Since the kernel includes many non-global functions with same names, we
will need to use offsets from other symbols (typically _text/_stext) or
absolute addresses to place return probes on specific functions. Also,
the core register_kretprobe() API never forbid use of offsets or
absolute addresses with kretprobes.

Allow its use with the trace infrastructure. To distinguish kernels that
support this, update ftrace README to explicitly call this out.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lkml.kernel.org/r/183e7ce2921a08c9c755ee9a5da3134febc6695b.1487770934.git.naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-03-03 19:07:18 -03:00
..
bpf
bpf: fix spelling mistake: "proccessed" -> "processed"
2017-02-23 10:46:08 -05:00
cgroup
Merge branch 'for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2017-02-27 21:41:08 -08:00
configs
config: android-base: enable hardened usercopy and kernel ASLR
2017-02-27 18:43:46 -08:00
debug
kdb: call vkdb_printf() from vprintk_default() only when wanted
2016-12-14 16:04:08 -08:00
events
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-02-28 11:38:18 -08:00
gcov
gcov: add support for gcc version >= 6
2016-07-15 14:54:27 +09:00
irq
scripts/spelling.txt: add "an user" pattern and fix typo instances
2017-02-27 18:43:46 -08:00
livepatch
livepatch/module: make TAINT_LIVEPATCH module-specific
2016-08-26 14:42:08 +02:00
locking
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-02-20 13:23:30 -08:00
power
This renames the (now inaccurate) CONFIG_DEBUG_RODATA and related config
2017-02-21 17:56:45 -08:00
printk
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
2017-02-22 17:33:34 -08:00
rcu
Merge branches 'doc.2017.01.15b', 'dyntick.2017.01.23a', 'fixes.2017.01.23a', 'srcu.2017.01.25a' and 'torture.2017.01.15b' into HEAD
2017-01-25 12:56:05 -08:00
sched
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-02-28 11:44:01 -08:00
time
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-02-20 12:52:55 -08:00
trace
trace/kprobes: Allow return probes with offsets and absolute addresses
2017-03-03 19:07:18 -03:00
.gitignore
…
acct.c
acct: Convert obsolete cputime type to nsecs
2017-02-01 09:13:51 +01:00
async.c
…
audit_fsnotify.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-12-17 18:44:00 -08:00
audit_tree.c
Merge branch 'stable-4.10' of git://git.infradead.org/users/pcmoore/audit
2017-01-05 23:06:06 -08:00
audit_watch.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-12-17 18:44:00 -08:00
audit.c
Merge branch 'stable-4.11' of git://git.infradead.org/users/pcmoore/audit
2017-02-21 13:25:50 -08:00
audit.h
Merge branch 'stable-4.11' of git://git.infradead.org/users/pcmoore/audit
2017-02-21 13:25:50 -08:00
auditfilter.c
audit: add support for session ID user filter
2016-11-29 15:10:12 -05:00
auditsc.c
Merge branch 'stable-4.11' of git://git.infradead.org/users/pcmoore/audit
2017-02-21 13:25:50 -08:00
backtracetest.c
…
bounds.c
…
capability.c
capability: export has_capability
2017-01-12 07:01:56 -07:00
compat.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
configs.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
context_tracking.c
…
cpu_pm.c
…
cpu.c
cpu/hotplug: Remove unused but set variable in _cpu_down()
2017-01-18 11:55:09 +01:00
crash_dump.c
…
cred.c
cred: Reject inodes with invalid ids in set_create_file_as()
2016-06-30 18:05:09 -05:00
delayacct.c
delaycct: Convert obsolete cputime type to nsecs
2017-02-01 09:13:52 +01:00
dma.c
…
elfcore.c
…
exec_domain.c
…
exit.c
mm: add new mmgrab() helper
2017-02-27 18:43:48 -08:00
extable.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2017-02-22 10:15:09 -08:00
fork.c
mm: add new mmget() helper
2017-02-27 18:43:48 -08:00
freezer.c
freezer, oom: check TIF_MEMDIE on the correct task
2016-07-28 16:07:41 -07:00
futex_compat.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
futex.c
mm: add new mmgrab() helper
2017-02-27 18:43:48 -08:00
groups.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
hung_task.c
hung_task: decrement sysctl_hung_task_warnings only if it is positive
2016-12-12 18:55:09 -08:00
irq_work.c
…
jump_label.c
This release has no new tracing features, just clean ups, minor fixes
2017-02-27 13:26:17 -08:00
kallsyms.c
bpf: make jited programs visible in traces
2017-02-17 13:40:05 -05:00
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
locking/mutex: Allow MUTEX_SPIN_ON_OWNER when DEBUG_MUTEXES
2016-10-25 11:31:51 +02:00
Kconfig.preempt
…
kcov.c
kcov: make kcov work properly with KASLR enabled
2016-12-20 09:48:47 -08:00
kexec_core.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
2017-02-22 17:33:34 -08:00
kexec_file.c
ima: on soft reboot, save the measurement list
2016-12-20 09:48:44 -08:00
kexec_internal.h
kexec_file: Allow arch-specific memory walking for kexec_add_buffer
2016-11-30 23:14:57 +11:00
kexec.c
kexec: allow architectures to override boot mapping
2016-08-02 19:35:27 -04:00
kmod.c
Introduce STATIC_USERMODEHELPER to mediate call_usermodehelper()
2017-01-19 12:59:45 +01:00
kprobes.c
kretprobes: Ensure probe location is at function entry
2017-03-03 19:07:17 -03:00
ksysfs.c
kernel/ksysfs.c: add __ro_after_init to bin_attribute structure
2017-02-24 17:46:56 -08:00
kthread.c
time: Remove CONFIG_TIMER_STATS
2017-02-10 11:15:08 +01:00
latencytop.c
…
Makefile
cgroup: move cgroup files under kernel/cgroup/
2016-12-27 14:49:05 -05:00
membarrier.c
Fix: Disable sys_membarrier when nohz_full is enabled
2017-01-23 11:32:16 -08:00
memremap.c
mm, devm_memremap_pages: hold device_hotplug lock over mem_hotplug_{begin, done}
2017-02-24 17:46:53 -08:00
module_signing.c
KEYS: Move the point of trust determination to __key_link()
2016-04-11 22:43:43 +01:00
module-internal.h
…
module.c
Modules updates for v4.11
2017-02-22 17:08:33 -08:00
notifier.c
kernel/notifier.c: simplify expression
2017-02-24 17:46:56 -08:00
nsproxy.c
…
padata.c
padata: Remove unused but set variables
2016-10-25 11:08:10 +08:00
panic.c
sparc64: Send break twice from console to return to boot prom
2017-02-23 08:27:24 -08:00
params.c
…
pid_namespace.c
pid: fix lockdep deadlock warning due to ucount_lock
2017-01-10 13:34:56 +13:00
pid.c
locking/atomic, kref: Add KREF_INIT()
2017-01-14 11:37:18 +01:00
profile.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
ptrace.c
ptrace: Don't allow accessing an undumpable mm
2016-11-22 12:57:38 -06:00
range.c
…
reboot.c
…
relay.c
lib/vsprintf.c: remove %Z support
2017-02-27 18:43:47 -08:00
resource.c
/proc/iomem: only expose physical resource addresses to privileged users
2016-04-14 12:56:09 -07:00
seccomp.c
seccomp: Only dump core when single-threaded
2017-02-23 09:42:35 +11:00
signal.c
sigaltstack: support SS_AUTODISARM for CONFIG_COMPAT
2017-02-27 18:43:45 -08:00
smp.c
kernel/smp: Tell the user we're bringing up secondary CPUs
2016-10-26 12:02:35 +02:00
smpboot.c
kthread/smpboot: do not park in kthread_create_on_cpu()
2016-10-11 15:06:33 -07:00
smpboot.h
…
softirq.c
softirq: Display IRQ_POLL for irq-poll statistics
2016-10-21 15:45:47 -06:00
stacktrace.c
stacktrace, lockdep: Fix address, newline ugliness
2017-02-08 08:21:31 +01:00
stop_machine.c
locking/core, stop_machine: Yield the CPU during stop machine()
2016-11-16 10:15:09 +01:00
sys_ni.c
move aio compat to fs/aio.c
2016-12-22 22:58:37 -05:00
sys.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2017-02-23 20:33:51 -08:00
sysctl_binary.c
sysctl: add KERN_CONT to deprecated_sysctl_warning()
2016-12-14 16:04:07 -08:00
sysctl.c
sched/rt: Show the 'sched_rr_timeslice' SCHED_RR timeslice tuning knob in milliseconds
2017-02-01 11:01:30 +01:00
task_work.c
task_work: use READ_ONCE/lockless_dereference, avoid pi_lock if !task_works
2016-08-02 19:35:02 -04:00
taskstats.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-11-15 10:54:36 -05:00
test_kprobes.c
…
torture.c
scripts/spelling.txt: add "varible" pattern and fix typo instances
2017-02-27 18:43:47 -08:00
tracepoint.c
tracing: Have the reg function allow to fail
2016-12-09 09:13:30 -05:00
tsacct.c
tsacct: Convert obsolete cputime type to nsecs
2017-02-01 09:13:52 +01:00
ucount.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2017-02-23 20:33:51 -08:00
uid16.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
up.c
smp: Add function to execute a function synchronously on a CPU
2016-09-05 13:52:39 +02:00
user_namespace.c
Merge branch 'nsfs-ioctls' into HEAD
2016-09-22 20:00:36 -05:00
user-return-notifier.c
…
user.c
…
utsname_sysctl.c
…
utsname.c
Merge branch 'nsfs-ioctls' into HEAD
2016-09-22 20:00:36 -05:00
watchdog_hld.c
kernel/watchdog.c: do not hardcode CPU 0 as the initial thread
2017-02-22 16:41:27 -08:00
watchdog.c
kernel/watchdog: prevent false hardlockup on overloaded system
2017-01-24 16:26:14 -08:00
workqueue_internal.h
…
workqueue.c
time: Remove CONFIG_TIMER_STATS
2017-02-10 11:15:08 +01:00