iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Kconfig.debug: Add FRAME_POINTER anti-dependency for ARC

Browse Source 
Frame pointer on ARC doesn't serve the conventional purpose of stack
unwinding due to the typical way ABI designates it's usage.
Thus it's explicit usage on ARC is discouraged (gcc is free to use it,
for some tricky stack frames even if -fomit-frame-pointer).

Hence no point enabling it for ARC.

References: http://www.spinics.net/lists/kernel/msg1593937.html
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: "Paul E. McKenney" <paul.mckenney@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: linux-kernel@vger.kernel.org
This commit is contained in:
Vineet Gupta 2013-08-27 13:52:51 +05:30
parent 7efd0da2d1
commit cc80ae38bf
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
lib/Kconfig.debug
View File

@ -908,7 +908,7 @@ config LOCKDEP
bool bool
depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
select STACKTRACE select STACKTRACE
select FRAME_POINTER if !MIPS && !PPC && !ARM_UNWIND && !S390 && !MICROBLAZE select FRAME_POINTER if !MIPS && !PPC && !ARM_UNWIND && !S390 && !MICROBLAZE && !ARC
select KALLSYMS select KALLSYMS
select KALLSYMS_ALL select KALLSYMS_ALL
@ -1347,7 +1347,7 @@ config FAULT_INJECTION_STACKTRACE_FILTER
depends on FAULT_INJECTION_DEBUG_FS && STACKTRACE_SUPPORT depends on FAULT_INJECTION_DEBUG_FS && STACKTRACE_SUPPORT
depends on !X86_64 depends on !X86_64
select STACKTRACE select STACKTRACE
select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND && !ARC
help help
Provide stacktrace filter for fault-injection capabilities Provide stacktrace filter for fault-injection capabilities
@ -1357,7 +1357,7 @@ config LATENCYTOP
depends on DEBUG_KERNEL depends on DEBUG_KERNEL
depends on STACKTRACE_SUPPORT depends on STACKTRACE_SUPPORT
depends on PROC_FS depends on PROC_FS
select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND && !ARC
select KALLSYMS select KALLSYMS
select KALLSYMS_ALL select KALLSYMS_ALL
select STACKTRACE select STACKTRACE