[PATCH 07/20] lto: Don't let LATENCYTOP and LOCKDEP select KALLSYMS_ALL

From: Andi Kleen
Date: Tue Feb 18 2014 - 09:31:45 EST


From: Andi Kleen <ak@xxxxxxxxxxxxxxx>

KALLSYMS_ALL enables including data variables into KALLSYMS.
With plain KALLSYMS only functions are included.

LATENCYTOP and LOCKDEP select KALLSYMS_ALL in addition to KALLSYMS.
It's unclear what they actually need _ALL for; they should
only need function backtraces and afaik never touch variables.

LTO currently does not support KALLSYMS_ALL, which prevents
LATENCYTOP and LOCKDEP from working and gives Kconfig errors.
Disable the requirement for KALLSYMS_ALL for them, just use
KALLSYMS.

Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
---
lib/Kconfig.debug | 2 --
1 file changed, 2 deletions(-)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index a48abea..5cbf0c5 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -928,7 +928,6 @@ config LOCKDEP
select STACKTRACE
select FRAME_POINTER if !MIPS && !PPC && !ARM_UNWIND && !S390 && !MICROBLAZE && !ARC
select KALLSYMS
- select KALLSYMS_ALL

config LOCK_STAT
bool "Lock usage statistics"
@@ -1396,7 +1395,6 @@ config LATENCYTOP
depends on PROC_FS
select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND && !ARC
select KALLSYMS
- select KALLSYMS_ALL
select STACKTRACE
select SCHEDSTATS
select SCHED_DEBUG
--
1.8.5.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/