From c9ff08a76360616f61398b991315a8f5c23958ce Mon Sep 17 00:00:00 2001 From: Martin Liska Date: Fri, 30 Sep 2016 10:24:47 +0200 Subject: [PATCH] Enhance documentation of asan-use-after-return param. * doc/invoke.texi: Document asan-use-after-return that it's disabled by default in runtime. From-SVN: r240648 --- gcc/ChangeLog | 5 +++++ gcc/doc/invoke.texi | 4 ++++ 2 files changed, 9 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 25129cb5d96..9be02e1d322 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2016-09-30 Martin Liska + + * doc/invoke.texi: Document asan-use-after-return that + it's disabled by default in runtime. + 2016-09-30 Richard Biener * tree-vrp.c (intersect_ranges): If we failed to handle diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 8a84e4f4823..01215601989 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -10034,6 +10034,10 @@ is enabled by default when using @option{-fsanitize=address} option. To disable use-after-return detection use @option{--param asan-use-after-return=0}. +Note: The check is disabled by default at runtime. To enable the check, +you should set environment variable @env{ASAN_OPTIONS} to +@code{detect_stack_use_after_return=1}. + @item asan-instrumentation-with-call-threshold If number of memory accesses in function being instrumented is greater or equal to this number, use callbacks instead of inline checks. -- 2.30.2