android_kernel_xiaomi_sm8350/arch/x86
Török Edwin 02b67518e2 tracing: add support for userspace stacktraces in tracing/iter_ctrl
Impact: add new (default-off) tracing visualization feature

Usage example:

 mount -t debugfs nodev /sys/kernel/debug
 cd /sys/kernel/debug/tracing
 echo userstacktrace >iter_ctrl
 echo sched_switch >current_tracer
 echo 1 >tracing_enabled
 .... run application ...
 echo 0 >tracing_enabled

Then read one of 'trace','latency_trace','trace_pipe'.

To get the best output you can compile your userspace programs with
frame pointers (at least glibc + the app you are tracing).

Signed-off-by: Török Edwin <edwintorok@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-23 09:25:15 +01:00
..
boot .gitignore updates 2008-10-30 11:38:45 -07:00
configs
crypto
ia32
include/asm Merge branches 'tracing/profiling', 'tracing/options' and 'tracing/urgent' into tracing/core 2008-11-23 09:10:32 +01:00
kernel tracing: add support for userspace stacktraces in tracing/iter_ctrl 2008-11-23 09:25:15 +01:00
kvm KVM: Fix pit memory leak if unable to allocate irq source id 2008-11-11 21:01:51 +02:00
lguest lguest: fix irq vectors. 2008-10-31 11:24:28 +11:00
lib
mach-default
mach-generic
mach-rdc321x
mach-voyager x86, voyager: fix smp generic helper voyager breakage 2008-11-11 12:08:53 +01:00
math-emu
mm Merge branches 'tracing/profiling', 'tracing/options' and 'tracing/urgent' into tracing/core 2008-11-23 09:10:32 +01:00
oprofile oprofile: Fix p6 counter overflow check 2008-11-07 17:34:41 +01:00
pci
power x86, hibernate: fix breakage on x86_32 with CONFIG_NUMA set 2008-11-12 23:28:51 +01:00
vdso trace: rename unlikely profiler to branch profiler 2008-11-12 22:27:58 +01:00
video
xen Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-11-07 09:17:59 -08:00
Kconfig Merge branches 'tracing/profiling', 'tracing/options' and 'tracing/urgent' into tracing/core 2008-11-23 09:10:32 +01:00
Kconfig.cpu x86, bts: improve help text for BTS config 2008-10-28 16:39:37 +01:00
Kconfig.debug trace: add the MMIO-tracer to the tracer menu, cleanup 2008-10-27 14:07:26 +01:00
Makefile x86, um: ... and asm-x86 move 2008-10-22 22:55:20 -07:00
Makefile_32.cpu