Merge branch 'akpm' (patches from Andrew)

[deliverable/linux.git] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index eb8917a714894854475d01e83e77e976c27a246e..2307d7c89dac972fae526627ce21ecdd087369de 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -721,6 +721,17 @@ config KCOV
 
          For more details, see Documentation/kcov.txt.
 
+config KCOV_INSTRUMENT_ALL
+       bool "Instrument all code by default"
+       depends on KCOV
+       default y if KCOV
+       help
+         If you are doing generic system call fuzzing (like e.g. syzkaller),
+         then you will want to instrument the whole kernel and you should
+         say y here. If you are doing more targeted fuzzing (like e.g.
+         filesystem fuzzing with AFL) then you will want to enable coverage
+         for more specific subsets of files, and should say n here.
+
 config DEBUG_SHIRQ
        bool "Debug shared IRQ handlers"
        depends on DEBUG_KERNEL