lkml.org 
[lkml]   [2008]   [Nov]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 3/3] tracing/stack-tracer: introduce CONFIG_USER_STACKTRACE_SUPPORT
Date
User stack tracing is just implemented for x86, but it is not x86 specific.
Introduce a generic config flag, that is currently enabled only for x86.
When other arches implements it, they will have to SELECT USER_STACKTRACE_SUPPORT

Signed-off-by: Török Edwin <edwintorok@gmail.com>
---
arch/x86/Kconfig | 1 +
include/linux/stacktrace.h | 2 +-
kernel/trace/Kconfig | 3 +++
3 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 7a146ba..e49a4fd 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -36,6 +36,7 @@ config X86
select HAVE_ARCH_TRACEHOOK
select HAVE_GENERIC_DMA_COHERENT if X86_32
select HAVE_EFFICIENT_UNALIGNED_ACCESS
+ select USER_STACKTRACE_SUPPORT

config ARCH_DEFCONFIG
string
diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h
index fd42d68..1a8cecc 100644
--- a/include/linux/stacktrace.h
+++ b/include/linux/stacktrace.h
@@ -16,7 +16,7 @@ extern void save_stack_trace_tsk(struct task_struct *tsk,

extern void print_stack_trace(struct stack_trace *trace, int spaces);

-#ifdef CONFIG_X86
+#ifdef CONFIG_USER_STACKTRACE_SUPPORT
extern void save_stack_trace_user(struct stack_trace *trace);
#else
# define save_stack_trace_user(trace) do { } while (0)
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index b8378fa..87fc34a 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -3,6 +3,9 @@
# select HAVE_FUNCTION_TRACER:
#

+config USER_STACKTRACE_SUPPORT
+ bool
+
config NOP_TRACER
bool

--
1.5.6.5
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2008-11-23 11:43    [W:0.115 / U:1.060 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site