lkml.org 
[lkml]   [2013]   [Aug]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH] Kconfig.debug: Add FRAME_POINTER anti-dependency for ARC
    Date
    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.

    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
    ---
    lib/Kconfig.debug | 6 +++---
    1 file changed, 3 insertions(+), 3 deletions(-)

    diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
    index 1501aa5..c971f3a 100644
    --- a/lib/Kconfig.debug
    +++ b/lib/Kconfig.debug
    @@ -908,7 +908,7 @@ config LOCKDEP
    bool
    depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
    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_ALL

    @@ -1347,7 +1347,7 @@ config FAULT_INJECTION_STACKTRACE_FILTER
    depends on FAULT_INJECTION_DEBUG_FS && STACKTRACE_SUPPORT
    depends on !X86_64
    select STACKTRACE
    - select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND
    + select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND && !ARC
    help
    Provide stacktrace filter for fault-injection capabilities

    @@ -1357,7 +1357,7 @@ config LATENCYTOP
    depends on DEBUG_KERNEL
    depends on STACKTRACE_SUPPORT
    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_ALL
    select STACKTRACE
    --
    1.8.1.2


    \
     
     \ /
      Last update: 2013-08-27 11:21    [W:2.089 / U:0.332 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site