Merge branch 'slab/urgent' into for-linus

[karo-tx-linux.git] / kernel / trace / Kconfig

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 4a13e5a01ce318c62c75c991a8694096e4821f40..1551f47e7669ba06f5e010410e9408cb9de07eb4 100644 (file)
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -18,6 +18,13 @@ config HAVE_FUNCTION_TRACER
 config HAVE_FUNCTION_GRAPH_TRACER
        bool
 
+config HAVE_FUNCTION_GRAPH_FP_TEST
+       bool
+       help
+        An arch may pass in a unique value (frame pointer) to both the
+        entering and exiting of a function. On exit, the value is compared
+        and if it does not match, then it will panic the kernel.
+
 config HAVE_FUNCTION_TRACE_MCOUNT_TEST
        bool
        help
@@ -121,6 +128,7 @@ config FUNCTION_GRAPH_TRACER
        bool "Kernel Function Graph Tracer"
        depends on HAVE_FUNCTION_GRAPH_TRACER
        depends on FUNCTION_TRACER
+       depends on !X86_32 || !CC_OPTIMIZE_FOR_SIZE
        default y
        help
          Enable the kernel to trace a function at both its return
@@ -147,7 +155,7 @@ config IRQSOFF_TRACER
          disabled by default and can be runtime (re-)started
          via:
 
-             echo 0 > /debugfs/tracing/tracing_max_latency
+             echo 0 > /sys/kernel/debug/tracing/tracing_max_latency
 
          (Note that kernel size and overhead increases with this option
          enabled. This option and the preempt-off timing option can be
@@ -168,7 +176,7 @@ config PREEMPT_TRACER
          disabled by default and can be runtime (re-)started
          via:
 
-             echo 0 > /debugfs/tracing/tracing_max_latency
+             echo 0 > /sys/kernel/debug/tracing/tracing_max_latency
 
          (Note that kernel size and overhead increases with this option
          enabled. This option and the irqs-off timing option can be
@@ -261,7 +269,7 @@ config PROFILE_ANNOTATED_BRANCHES
          This tracer profiles all the the likely and unlikely macros
          in the kernel. It will display the results in:
 
-         /debugfs/tracing/profile_annotated_branch
+         /sys/kernel/debug/tracing/profile_annotated_branch
 
          Note: this will add a significant overhead, only turn this
          on if you need to profile the system's use of these macros.
@@ -274,7 +282,7 @@ config PROFILE_ALL_BRANCHES
          taken in the kernel is recorded whether it hit or miss.
          The results will be displayed in:
 
-         /debugfs/tracing/profile_branch
+         /sys/kernel/debug/tracing/profile_branch
 
          This option also enables the likely/unlikely profiler.
 
@@ -323,7 +331,7 @@ config STACK_TRACER
        select KALLSYMS
        help
          This special tracer records the maximum stack footprint of the
-         kernel and displays it in debugfs/tracing/stack_trace.
+         kernel and displays it in /sys/kernel/debug/tracing/stack_trace.
 
          This tracer works by hooking into every function call that the
          kernel executes, and keeping a maximum stack depth value and