On Wed, 19 Jun 2019 13:26:37 +0530
"Naveen N. Rao" wrote:
> > In include/ftrace.h:
> >
> > #ifndef FTRACE_IP_EXTENSION
> > # define FTRACE_IP_EXTENSION0
> > #endif
> >
> >
> > In arch/powerpc/include/asm/ftrace.h
> >
> > #define FTRACE_IP_EXTENSION MCOUNT_INSN_SIZE
> >
> >
> > Then
Steven Rostedt wrote:
On Tue, 18 Jun 2019 23:53:11 +0530
"Naveen N. Rao" wrote:
Naveen N. Rao wrote:
> Steven Rostedt wrote:
>> On Tue, 18 Jun 2019 20:17:04 +0530
>> "Naveen N. Rao" wrote:
>>
>>> @@ -1551,7 +1551,7 @@ unsigned long ftrace_location_range(unsigned long start, unsigned lon
On Tue, 18 Jun 2019 23:53:11 +0530
"Naveen N. Rao" wrote:
> Naveen N. Rao wrote:
> > Steven Rostedt wrote:
> >> On Tue, 18 Jun 2019 20:17:04 +0530
> >> "Naveen N. Rao" wrote:
> >>
> >>> @@ -1551,7 +1551,7 @@ unsigned long ftrace_location_range(unsigned long
> >>> start, unsigned long end)
Naveen N. Rao wrote:
Steven Rostedt wrote:
On Tue, 18 Jun 2019 20:17:04 +0530
"Naveen N. Rao" wrote:
@@ -1551,7 +1551,7 @@ unsigned long ftrace_location_range(unsigned long start,
unsigned long end)
key.flags = end;/* overload flags, as it is unsigned long */
for (pg = ft
Steven Rostedt wrote:
On Tue, 18 Jun 2019 20:17:04 +0530
"Naveen N. Rao" wrote:
@@ -1551,7 +1551,7 @@ unsigned long ftrace_location_range(unsigned long start,
unsigned long end)
key.flags = end;/* overload flags, as it is unsigned long */
for (pg = ftrace_pages_start; pg;
On Tue, 18 Jun 2019 20:17:04 +0530
"Naveen N. Rao" wrote:
> @@ -1551,7 +1551,7 @@ unsigned long ftrace_location_range(unsigned long
> start, unsigned long end)
> key.flags = end;/* overload flags, as it is unsigned long */
>
> for (pg = ftrace_pages_start; pg; pg = pg->next
Now that we are patching the preceding 'mflr r0' instruction with
-mprofile-kernel, we need to update ftrace_location[_range]() to
recognise that as being part of ftrace. To do this, we make a small
change to ftrace_location_range() and convert ftrace_cmp_recs() into a
weak function. We implement a
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