[PATCH] D104155: Add documentation for -fsanitize-address-use-after-return.
Kevin Athey via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Fri Jun 11 15:24:23 PDT 2021
kda updated this revision to Diff 351571.
kda marked an inline comment as done.
kda added a comment.
- Revised according to feedback.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D104155/new/
https://reviews.llvm.org/D104155
Files:
clang/docs/AddressSanitizer.rst
clang/docs/ClangCommandLineReference.rst
Index: clang/docs/ClangCommandLineReference.rst
===================================================================
--- clang/docs/ClangCommandLineReference.rst
+++ clang/docs/ClangCommandLineReference.rst
@@ -881,6 +881,15 @@
* ``global`` - Emit module destructors that are called via a platform specific array (see `llvm.global_dtors`).
* ``none`` - Do not emit module destructors.
+.. option:: -fsanitize-address-use-after-return=<arg>
+
+Select the enabling method of detecting stack use-after-return in AddressSanitizer.
+
+Valid options are:
+* ``always`` - Detect use-after-return.
+* ``runtime`` - Detect use-after-return with runtime ON/OFF switch (environment variable `ASAN_OPTIONS=detect_stack_use_after_return=1`, default: 0)
+* ``never`` - Do not detect use-after-return.
+
.. option:: -fsanitize-ignorelist=<arg>
Path to ignorelist file for sanitizers
Index: clang/docs/AddressSanitizer.rst
===================================================================
--- clang/docs/AddressSanitizer.rst
+++ clang/docs/AddressSanitizer.rst
@@ -14,7 +14,8 @@
* Out-of-bounds accesses to heap, stack and globals
* Use-after-free
-* Use-after-return (runtime flag `ASAN_OPTIONS=detect_stack_use_after_return=1`)
+* Use-after-return (clang flag `-fsanitize-address-use-after-return=(always|runtime|never)` default: runtime)
+ * Add runtime flag `ASAN_OPTIONS=detect_stack_use_after_return=1` to enable when compiled with `-fsanitize-address-use-after-return=runtime`)
* Use-after-scope (clang flag `-fsanitize-address-use-after-scope`)
* Double-free, invalid free
* Memory leaks (experimental)
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