From: Török Edwin Date: Sun, 23 Nov 2008 10:39:08 +0000 (+0200) Subject: tracing/stack-tracer: introduce CONFIG_USER_STACKTRACE_SUPPORT X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8d26487fd4ddda7a0237da418fb8669fb06ae557;p=linux-beck.git tracing/stack-tracer: introduce CONFIG_USER_STACKTRACE_SUPPORT Impact: cleanup 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 implement it, they will have to SELECT USER_STACKTRACE_SUPPORT. Signed-off-by: Török Edwin Signed-off-by: Ingo Molnar --- diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 7a146baaa990..e49a4fd718fe 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 fd42d6851109..1a8cecc4f38c 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 b8378fad29a3..87fc34a1bb91 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