Steven Rostedt 166438a432 ftrace: Do not find "true_parent" if HAVE_DYNAMIC_FTRACE_WITH_ARGS is not set ... When function tracing and function graph tracing are both enabled (in different instances) the "parent" of some of the function tracing events is "return_to_handler" which is the trampoline used by function graph tracing. To fix this, ftrace_get_true_parent_ip() was introduced that returns the "true" parent ip instead of the trampoline. To do this, the ftrace_regs_get_stack_pointer() is used, which uses kernel_stack_pointer(). The problem is that microblaze does not implement kerenl_stack_pointer() so when function graph tracing is enabled, the build fails. But microblaze also does not enabled HAVE_DYNAMIC_FTRACE_WITH_ARGS. That option has to be enabled by the architecture to reliably get the values from the fregs parameter passed in. When that config is not set, the architecture can also pass in NULL, which is not tested for in that function and could cause the kernel to crash. Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Michal Simek <monstr@monstr.eu> Cc: Jeff Xie <jeff.xie@linux.dev> Link: https://lore.kernel.org/20241216164633.6df18e87@gandalf.local.home Fixes: 60b1f578b5 ("ftrace: Get the true parent ip for function tracer") Reported-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>		2024-12-16 17:22:26 -05:00
..
bpf	bpf: Avoid deadlock caused by nested kprobe and fentry bpf programs	2024-12-14 09:49:27 -08:00
cgroup	cgroup: Changes for v6.13	2024-11-20 09:54:49 -08:00
configs	configs/debug: make sure PROVE_RCU_LIST=y takes effect	2024-10-28 10:21:09 -07:00
debug	kdb: fix ctrl+e/a/f/b/d/p/n broken in keyboard mode	2024-11-18 15:20:22 +00:00
dma	dma-debug: fix physical address calculation for struct dma_debug_entry	2024-11-28 10:19:16 +01:00
entry	sched: Add TIF_NEED_RESCHED_LAZY infrastructure	2024-11-05 12:55:37 +01:00
events	- The series "resource: A couple of cleanups" from Andy Shevchenko	2024-11-25 16:09:48 -08:00
futex	futex: fix user access on powerpc	2024-12-09 10:00:25 -08:00
gcov	…
irq	genirq/proc: Add missing space separator back	2024-12-03 14:59:34 +01:00
kcsan	kcsan: Remove redundant call of kallsyms_lookup_name()	2024-10-14 16:44:56 +02:00
livepatch	…
locking	locking: rtmutex: Fix wake_q logic in task_blocks_on_rt_mutex	2024-12-02 12:01:29 +01:00
module	module: Convert symbol namespace to string literal	2024-12-02 11:34:44 -08:00
power	The biggest change here is eliminating the awful idea that KVM had, of	2024-11-23 16:00:50 -08:00
printk	printk changes for 6.13	2024-11-20 09:21:11 -08:00
rcu	A set of updates for the interrupt subsystem:	2024-11-19 15:54:19 -08:00
sched	- Prevent incorrect dequeueing of the deadline dlserver helper task and fix	2024-12-15 09:38:03 -08:00
time	clocksource: Make negative motion detection more robust	2024-12-05 16:03:24 +01:00
trace	ftrace: Do not find "true_parent" if HAVE_DYNAMIC_FTRACE_WITH_ARGS is not set	2024-12-16 17:22:26 -05:00
.gitignore	…
Kconfig.freezer	…
Kconfig.hz	…
Kconfig.kexec	crash, powerpc: default to CRASH_DUMP=n on PPC_BOOK3S_32	2024-11-14 22:43:48 -08:00
Kconfig.locks	…
Kconfig.preempt	sched: No PREEMPT_RT=y for all{yes,mod}config	2024-11-07 15:25:05 +01:00
Makefile	…
acct.c	…
async.c	…
audit.c	lsm/stable-6.13 PR 20241112	2024-11-18 17:34:05 -08:00
audit.h	audit: change context data from secid to lsm_prop	2024-10-11 14:34:16 -04:00
audit_fsnotify.c	…
audit_tree.c	…
audit_watch.c	…
auditfilter.c	audit: change context data from secid to lsm_prop	2024-10-11 14:34:16 -04:00
auditsc.c	audit: workaround a GCC bug triggered by task comm changes	2024-12-04 22:57:46 -05:00
backtracetest.c	…
bounds.c	…
capability.c	…
cfi.c	…
compat.c	…
configs.c	…
context_tracking.c	…
cpu.c	Driver core changes for 6.13-rc1	2024-11-29 11:43:29 -08:00
cpu_pm.c	…
crash_core.c	kexec/crash: no crash update when kexec in progress	2024-11-05 17:12:27 -08:00
crash_reserve.c	…
cred.c	cred: Add a light version of override/revert_creds()	2024-11-11 10:45:04 +01:00
delayacct.c	…
dma.c	…
elfcorehdr.c	…
exec_domain.c	…
exit.c	remove pointless includes of <linux/fdtable.h>	2024-10-07 13:34:41 -04:00
exit.h	…
extable.c	…
fail_function.c	…
fork.c	Revert "fs: don't block i_writecount during exec"	2024-11-27 12:51:30 +01:00
freezer.c	sched/fair: Fix external p->on_rq users	2024-10-14 09:14:35 +02:00
gen_kheaders.sh	…
groups.c	…
hung_task.c	hung_task: add detect count for hung tasks	2024-11-11 17:17:03 -08:00
iomem.c	…
irq_work.c	…
jump_label.c	…
kallsyms.c	…
kallsyms_internal.h	…
kallsyms_selftest.c	…
kallsyms_selftest.h	…
kcmp.c	get rid of ...lookup...fdget_rcu() family	2024-10-07 13:34:41 -04:00
kcov.c	…
kexec.c	…
kexec_core.c	…
kexec_elf.c	…
kexec_file.c	…
kexec_internal.h	…
kheaders.c	…
kprobes.c	kprobes: Use struct_size() in __get_insn_slot()	2024-10-31 11:00:58 +09:00
ksyms_common.c	…
ksysfs.c	…
kthread.c	get rid of __get_task_comm()	2024-11-05 17:12:28 -08:00
latencytop.c	…
module_signature.c	…
notifier.c	reboot: move reboot_notifier_list to kernel/reboot.c	2024-11-05 17:12:31 -08:00
nsproxy.c	fdget(), trivial conversions	2024-11-03 01:28:06 -05:00
padata.c	padata: Clean up in padata_do_multithreaded()	2024-11-10 11:50:54 +08:00
panic.c	…
params.c	…
pid.c	fdget(), more trivial conversions	2024-11-03 01:28:06 -05:00
pid_namespace.c	…
pid_sysctl.h	…
profile.c	…
ptrace.c	…
range.c	…
reboot.c	kernel/reboot: replace sprintf() with sysfs_emit()	2024-11-11 17:17:05 -08:00
regset.c	…
relay.c	…
resource.c	module: Convert symbol namespace to string literal	2024-12-02 11:34:44 -08:00
resource_kunit.c	resource, kunit: fix user-after-free in resource_test_region_intersects()	2024-10-09 12:47:19 -07:00
rseq.c	…
scftorture.c	scftorture: Handle NULL argument passed to scf_add_to_free_list().	2024-11-14 16:09:51 -08:00
scs.c	…
seccomp.c	…
signal.c	posix-timers: Target group sigqueue to current task only if not exiting	2024-11-29 13:19:09 +01:00
smp.c	locking/csd-lock: Switch from sched_clock() to ktime_get_mono_fast_ns()	2024-10-11 09:31:21 -07:00
smpboot.c	…
smpboot.h	…
softirq.c	softirq: Allow raising SCHED_SOFTIRQ from SMP-call-function on RT kernel	2024-12-02 12:01:27 +01:00
stackleak.c	…
stacktrace.c	…
static_call.c	…
static_call_inline.c	…
stop_machine.c	…
sys.c	arm64 updates for 6.13:	2024-11-18 18:10:37 -08:00
sys_ni.c	…
sysctl-test.c	…
sysctl.c	sysctl: Reorganize kerneldoc parameter names	2024-10-23 15:28:40 +02:00
task_work.c	sched/core: Disable page allocation in task_tick_mm_cid()	2024-10-11 10:49:32 +02:00
taskstats.c	fdget(), more trivial conversions	2024-11-03 01:28:06 -05:00
torture.c	…
tracepoint.c	tracing: Fix syscall tracepoint use-after-free	2024-11-01 14:37:31 -04:00
tsacct.c	…
ucount.c	Summary	2024-11-22 20:36:11 -08:00
uid16.c	…
uid16.h	…
umh.c	remove pointless includes of <linux/fdtable.h>	2024-10-07 13:34:41 -04:00
up.c	…
user-return-notifier.c	…
user.c	…
user_namespace.c	…
usermode_driver.c	…
utsname.c	…
utsname_sysctl.c	…
vhost_task.c	…
vmcore_info.c	…
watch_queue.c	fdget(), trivial conversions	2024-11-03 01:28:06 -05:00
watchdog.c	- The series "resource: A couple of cleanups" from Andy Shevchenko	2024-11-25 16:09:48 -08:00
watchdog_buddy.c	…
watchdog_perf.c	…
workqueue.c	workqueue: Reduce expensive locks for unbound workqueue	2024-11-15 06:43:39 -10:00
workqueue_internal.h	…