* [PATCH] kgdb: Do not allow function tracing of kgdb code
@ 2012-04-25 15:18 Steven Rostedt
2012-04-25 15:23 ` Jason Wessel
0 siblings, 1 reply; 2+ messages in thread
From: Steven Rostedt @ 2012-04-25 15:18 UTC (permalink / raw)
To: LKML; +Cc: Jason Wessel, Ingo Molnar, Thomas Gleixner, H. Peter Anvin
As function tracing the kgdb code can cause issues, as kgdb is a
debugger itself, do not trace the kgdb functions.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 532d2e0..b7828ce 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -15,6 +15,7 @@ CFLAGS_REMOVE_pvclock.o = -pg
CFLAGS_REMOVE_kvmclock.o = -pg
CFLAGS_REMOVE_ftrace.o = -pg
CFLAGS_REMOVE_early_printk.o = -pg
+CFLAGS_REMOVE_kgdb.o = -pg
endif
obj-y := process_$(BITS).o signal.o entry_$(BITS).o
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] kgdb: Do not allow function tracing of kgdb code
2012-04-25 15:18 [PATCH] kgdb: Do not allow function tracing of kgdb code Steven Rostedt
@ 2012-04-25 15:23 ` Jason Wessel
0 siblings, 0 replies; 2+ messages in thread
From: Jason Wessel @ 2012-04-25 15:23 UTC (permalink / raw)
To: Steven Rostedt; +Cc: LKML, Ingo Molnar, Thomas Gleixner, H. Peter Anvin
On 04/25/2012 10:18 AM, Steven Rostedt wrote:
> As function tracing the kgdb code can cause issues, as kgdb is a
> debugger itself, do not trace the kgdb functions.
>
> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
>
> diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
> index 532d2e0..b7828ce 100644
> --- a/arch/x86/kernel/Makefile
> +++ b/arch/x86/kernel/Makefile
> @@ -15,6 +15,7 @@ CFLAGS_REMOVE_pvclock.o = -pg
> CFLAGS_REMOVE_kvmclock.o = -pg
> CFLAGS_REMOVE_ftrace.o = -pg
> CFLAGS_REMOVE_early_printk.o = -pg
> +CFLAGS_REMOVE_kgdb.o = -pg
> endif
>
> obj-y := process_$(BITS).o signal.o entry_$(BITS).o
>
>
Per our off mailing list discussion, I absolutely agree.
This came up in the course of looking through the new code proposed
around removing the stop machine for ftrace.
Acked-by: Jason Wessel <jason.wessel@windriver.com>
Cheers,
Jason.
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