stacktrace/x86: add function for detecting reliable stack traces

[mirror_ubuntu-bionic-kernel.git] / arch / Kconfig

diff --git a/arch/Kconfig b/arch/Kconfig
index cd211a14a88f7774bec3abbe3b371f0302e624a0..6ad00ad73459f3e557c7acc6f4f8f6c196dcd243 100644 (file)
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -713,6 +713,12 @@ config HAVE_STACK_VALIDATION
          Architecture supports the 'objtool check' host tool command, which
          performs compile-time stack metadata validation.
 
+config HAVE_RELIABLE_STACKTRACE
+       bool
+       help
+         Architecture has a save_stack_trace_tsk_reliable() function which
+         only returns a stack trace if it can guarantee the trace is reliable.
+
 config HAVE_ARCH_HASH
        bool
        default n