* *PING 3* [PATCH] doc: improve -fsanitize=undefined description
@ 2021-10-06 18:24 Diane Meirowitz
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From: Diane Meirowitz @ 2021-10-06 18:24 UTC (permalink / raw)
To: gcc-patches
Please review my small doc patch. Thank you.
Diane
On 9/15/21, 5:02 PM, "Diane Meirowitz" <diane.meirowitz@oracle.com> wrote:
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.
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 78cfc100ac2..f022885edf8 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -15200,7 +15200,8 @@ 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
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