tracing/kprobes: Add short documentation for HAVE_REGS_AND_STACK_ACCE…

…SS_API So that arch developers know how to implement it without the need to dig into changelogs. Reported-by: Mike Frysinger <[email protected]> Signed-off-by: Heiko Carstens <[email protected]> Acked-by: Masami Hiramatsu <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: "David S . Miller" <[email protected]> Cc: Paul Mundt <[email protected]> Cc: Steven Rostedt <[email protected]> LKML-Reference: <[email protected]> [added reference to ptrace.h in the config help] Signed-off-by: Frederic Weisbecker <[email protected]>
ambv · Feb 22, 2010 · e01292b · e01292b
1 parent 952974a
commit e01292b
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/arch/Kconfig b/arch/Kconfig
@@ -123,6 +123,11 @@ config USE_GENERIC_SMP_HELPERS
 
 config HAVE_REGS_AND_STACK_ACCESS_API
 	bool
+	help
+	  This symbol should be selected by an architecure if it supports
+	  the API needed to access registers and stack entries from pt_regs,
+	  declared in asm/ptrace.h
+	  For example the kprobes-based event tracer needs this API.
 
 config HAVE_CLK
 	bool