Thiago Jung Bauermann 7132e2d669 ftrace: Match dot symbols when searching functions on ppc64 ... In the ppc64 big endian ABI, function symbols point to function descriptors. The symbols which point to the function entry points have a dot in front of the function name. Consequently, when the ftrace filter mechanism searches for the symbol corresponding to an entry point address, it gets the dot symbol. As a result, ftrace filter users have to be aware of this ABI detail on ppc64 and prepend a dot to the function name when setting the filter. The perf probe command insulates the user from this by ignoring the dot in front of the symbol name when matching function names to symbols, but the sysfs interface does not. This patch makes the ftrace filter mechanism do the same when searching symbols. Fixes the following failure in ftracetest's kprobe_ftrace.tc: .../kprobe_ftrace.tc: line 9: echo: write error: Invalid argument That failure is on this line of kprobe_ftrace.tc: echo _do_fork > set_ftrace_filter This is because there's no _do_fork entry in the functions list: # cat available_filter_functions | grep _do_fork ._do_fork This change introduces no regressions on the perf and ftracetest testsuite results. Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2016-04-27 09:47:29 +10:00
..
bpf	bpf: add missing map_flags to bpf_map_show_fdinfo	2016-03-25 11:36:41 -04:00
configs	…
debug	mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings	2016-02-22 08:51:37 +01:00
events	Merge branch 'PAGE_CACHE_SIZE-removal'	2016-04-04 10:50:24 -07:00
gcov	gcov: use within_module() helper.	2015-12-04 22:46:25 +01:00
irq	kernel/...: convert pr_warning to pr_warn	2016-03-22 15:36:02 -07:00
livepatch	Merge branch 'topic/livepatch' into next	2016-04-18 20:45:32 +10:00
locking	locking/lockdep: Print chain_key collision information	2016-03-31 15:03:58 +02:00
power	Power management and ACPI material for v4.6-rc1, part 2	2016-03-24 22:59:58 -07:00
printk	printk: add clear_idx symbol to vmcoreinfo	2016-03-17 15:09:34 -07:00
rcu	kernel: add kcov code coverage	2016-03-22 15:36:02 -07:00
sched	locking/atomic, sched: Unexport fetch_or()	2016-03-29 11:52:11 +02:00
time	timers/nohz: Convert tick dependency mask to atomic_t	2016-03-29 11:52:11 +02:00
trace	ftrace: Match dot symbols when searching functions on ppc64	2016-04-27 09:47:29 +10:00
.gitignore	…
Kconfig.freezer	…
Kconfig.hz	…
Kconfig.locks	…
Kconfig.preempt	…
Makefile	kernel: add kcov code coverage	2016-03-22 15:36:02 -07:00
acct.c	…
async.c	async: export current_is_async()	2015-11-19 17:51:48 +01:00
audit.c	Merge branch 'stable-4.6' of git://git.infradead.org/users/pcmoore/audit	2016-03-19 17:52:49 -07:00
audit.h	security: Make inode argument of inode_getsecid non-const	2015-12-24 11:09:39 -05:00
audit_fsnotify.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
audit_tree.c	audit: audit_tree_match can be boolean	2015-11-04 08:23:51 -05:00
audit_watch.c	Merge branch 'stable-4.6' of git://git.infradead.org/users/pcmoore/audit	2016-03-19 17:52:49 -07:00
auditfilter.c	audit: Fix typo in comment	2016-02-08 11:25:39 -05:00
auditsc.c	auditsc: for seccomp events, log syscall compat state using in_compat_syscall	2016-03-22 15:36:02 -07:00
backtracetest.c	…
bounds.c	…
capability.c	…
cgroup.c	Merge branch 'for-4.6-ns' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2016-03-21 10:05:13 -07:00
cgroup_freezer.c	cgroup: kill cgrp_ss_priv[CGROUP_CANFORK_COUNT] and friends	2015-12-03 10:24:08 -05:00
cgroup_pids.c	cgroup_pids: fix a typo.	2015-12-14 14:54:37 -05:00
compat.c	…
configs.c	…
context_tracking.c	context_tracking: Switch to new static_branch API	2015-11-24 09:56:43 +01:00
cpu.c	cpu/hotplug: Document states better	2016-03-12 20:57:38 +01:00
cpu_pm.c	…
cpuset.c	Merge branch 'for-4.6-ns' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2016-03-21 10:05:13 -07:00
crash_dump.c	…
cred.c	kmemcg: account certain kmem allocations to memcg	2016-01-14 16:00:49 -08:00
delayacct.c	kmemcg: account certain kmem allocations to memcg	2016-01-14 16:00:49 -08:00
dma.c	…
elfcore.c	…
exec_domain.c	…
exit.c	oom: clear TIF_MEMDIE after oom_reaper managed to unmap the address space	2016-03-25 16:37:42 -07:00
extable.c	…
fork.c	kernel: add kcov code coverage	2016-03-22 15:36:02 -07:00
freezer.c	…
futex.c	futex: Replace barrier() in unqueue_me() with READ_ONCE()	2016-03-08 17:04:02 +01:00
futex_compat.c	ptrace: use fsuid, fsgid, effective creds for fs access checks	2016-01-20 17:09:18 -08:00
groups.c	…
hung_task.c	kernel/hung_task.c: use timeout diff when timeout is updated	2016-03-22 15:36:02 -07:00
irq_work.c	treewide: Remove old email address	2015-11-23 09:44:58 +01:00
jump_label.c	treewide: Remove old email address	2015-11-23 09:44:58 +01:00
kallsyms.c	kallsyms: add support for relative offsets in kallsyms address table	2016-03-15 16:55:16 -07:00
kcmp.c	ptrace: use fsuid, fsgid, effective creds for fs access checks	2016-01-20 17:09:18 -08:00
kcov.c	kernel: add kcov code coverage	2016-03-22 15:36:02 -07:00
kexec.c	kexec: set KEXEC_TYPE_CRASH before sanity_check_segment_list()	2016-01-20 17:09:18 -08:00
kexec_core.c	kexec: Set IORESOURCE_SYSTEM_RAM for System RAM	2016-01-30 09:49:57 +01:00
kexec_file.c	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2016-03-17 11:33:45 -07:00
kexec_internal.h	kexec: move some memembers and definitions within the scope of CONFIG_KEXEC_FILE	2016-01-20 17:09:18 -08:00
kmod.c	…
kprobes.c	…
ksysfs.c	rcu: Remove TINY_RCU bloat from pointless boot parameters	2015-12-07 16:59:37 -08:00
kthread.c	…
latencytop.c	sched/debug: Make schedstats a runtime tunable that is disabled by default	2016-02-09 11:54:23 +01:00
membarrier.c	…
memremap.c	memremap: add MEMREMAP_WC flag	2016-03-22 15:36:02 -07:00
module-internal.h	…
module.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching	2016-03-17 21:46:32 -07:00
module_signing.c	X.509: Make algo identifiers text instead of enum	2016-03-03 21:49:27 +00:00
notifier.c	…
nsproxy.c	cgroup: introduce cgroup namespaces	2016-02-16 13:04:58 -05:00
padata.c	…
panic.c	panic: change nmi_panic from macro to function	2016-03-22 15:36:02 -07:00
params.c	Nothing exciting, minor tweaks and cleanups.	2015-11-09 15:53:39 -08:00
pid.c	Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-01-31 15:44:04 -08:00
pid_namespace.c	…
profile.c	profile: hide unused functions when !CONFIG_PROC_FS	2016-03-22 15:36:02 -07:00
ptrace.c	ptrace: change __ptrace_unlink() to clear ->ptrace under ->siglock	2016-03-22 15:36:02 -07:00
range.c	…
reboot.c	…
relay.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
resource.c	resource: Export insert_resource and remove_resource	2016-03-09 11:07:20 -08:00
seccomp.c	seccomp: check in_compat_syscall, not is_compat_task, in strict mode	2016-03-22 15:36:02 -07:00
signal.c	kernel/signal.c: add compile-time check for __ARCH_SI_PREAMBLE_SIZE	2016-03-22 15:36:02 -07:00
smp.c	Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-03-15 13:50:29 -07:00
smpboot.c	cpu/hotplug: Unpark smpboot threads from the state machine	2016-03-01 20:36:56 +01:00
smpboot.h	cpu/hotplug: Create hotplug threads	2016-03-01 20:36:56 +01:00
softirq.c	arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections	2016-03-25 16:37:42 -07:00
stacktrace.c	…
stop_machine.c	kernel/stop_machine.c: remove CONFIG_SMP dependencies	2016-01-16 11:17:24 -08:00
sys.c	timer: convert timer_slack_ns from unsigned long to u64	2016-03-17 15:09:34 -07:00
sys_ni.c	vfs: add copy_file_range syscall and vfs helper	2015-12-01 14:00:53 -05:00
sysctl.c	mm: scale kswapd watermarks in proportion to memory	2016-03-17 15:09:34 -07:00
sysctl_binary.c	fs/coredump: prevent fsuid=0 dumps into user-controlled directories	2016-03-22 15:36:02 -07:00
task_work.c	…
taskstats.c	…
test_kprobes.c	…
torture.c	…
tracepoint.c	kernel/...: convert pr_warning to pr_warn	2016-03-22 15:36:02 -07:00
tsacct.c	time, acct: Drop irq save & restore from __acct_update_integrals()	2016-02-29 09:53:09 +01:00
uid16.c	…
up.c	…
user-return-notifier.c	…
user.c	…
user_namespace.c	kernel/*: switch to memdup_user_nul()	2016-01-04 10:27:55 -05:00
utsname.c	…
utsname_sysctl.c	…
watchdog.c	watchdog: don't run proc_watchdog_update if new value is same as old	2016-03-17 15:09:34 -07:00
workqueue.c	Merge branch 'for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2016-03-18 20:05:39 -07:00
workqueue_internal.h	sched/core: Get rid of 'cpu' argument in wq_worker_sleeping()	2016-03-02 10:28:47 -05:00