From 1c0a83eff7bb5b1db997a9726ae6542aec893baa Mon Sep 17 00:00:00 2001 From: Diane Meirowitz Date: Wed, 15 Sep 2021 21:03:00 +0000 Subject: [PATCH] doc: improve -fsanitize=undefined description gcc/ChangeLog: * doc/invoke.texi: Add link to UndefinedBehaviorSanitizer documentation, mention UBSAN_OPTIONS, similar to what is done for AddressSanitizer. --- gcc/doc/invoke.texi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 8b3ebcfbc4fc..c4c653292474 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -15247,7 +15247,8 @@ The option cannot be combined with @option{-fsanitize=thread}. @opindex fsanitize=undefined Enable UndefinedBehaviorSanitizer, a fast undefined behavior detector. Various computations are instrumented to detect undefined behavior -at runtime. Current suboptions are: +at runtime. See @uref{https://clang.llvm.org/docs/UndefinedBehaviorSanitizer.html} for more details. The run-time behavior can be influenced using the +@env{UBSAN_OPTIONS} environment variable. Current suboptions are: @table @gcctabopt -- 2.47.2