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| author | Török Edwin <edwintorok@gmail.com> | 2008-11-23 12:39:08 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-23 11:53:50 +0100 |
| commit | 8d26487fd4ddda7a0237da418fb8669fb06ae557 (patch) | |
| tree | df518f9aef1c0f830ada2f2ad221ee41fd38ba1e | |
| parent | cffa10aecb6891f090a4d53a075bc40c082c45fc (diff) | |
| download | kernel-crypto-8d26487fd4ddda7a0237da418fb8669fb06ae557.tar.gz kernel-crypto-8d26487fd4ddda7a0237da418fb8669fb06ae557.tar.xz kernel-crypto-8d26487fd4ddda7a0237da418fb8669fb06ae557.zip | |
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 <edwintorok@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/x86/Kconfig | 1 | ||||
| -rw-r--r-- | include/linux/stacktrace.h | 2 | ||||
| -rw-r--r-- | kernel/trace/Kconfig | 3 |
3 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 7a146baaa99..e49a4fd718f 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 fd42d685110..1a8cecc4f38 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 b8378fad29a..87fc34a1bb9 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 |