[PATCH] D116633: Add -fsanitize-address-param-retval to clang.

[Kevin Athey via Phabricator via cfe-commits]

kda updated this revision to Diff 398266.
kda added a comment.

refined rendering of help text


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D116633/new/

https://reviews.llvm.org/D116633

Files:
  clang/include/clang/Basic/CodeGenOptions.def
  clang/include/clang/Driver/Options.td


Index: clang/include/clang/Driver/Options.td
===================================================================
--- clang/include/clang/Driver/Options.td
+++ clang/include/clang/Driver/Options.td
@@ -1667,6 +1667,13 @@
       NormalizedValuesScope<"llvm::AsanDtorKind">,
       NormalizedValues<["None", "Global"]>,
       MarshallingInfoEnum<CodeGenOpts<"SanitizeAddressDtor">, "Global">;
+defm sanitize_memory_param_retval
+  : BoolOption<"f", "sanitize-memory-param-retval",
+      CodeGenOpts<"SanitizeMemoryParamRetval">,
+      DefaultFalse,
+      PosFlag<SetTrue, [CC1Option], "Enable">, NegFlag<SetFalse, [], "Disable">,
+      BothFlags<[], " detection of uninitialized parameters and return values">>,
+    Group<f_clang_Group>;
 // Note: This flag was introduced when it was necessary to distinguish between
 //       ABI for correct codegen.  This is no longer needed, but the flag is
 //       not removed since targeting either ABI will behave the same.
Index: clang/include/clang/Basic/CodeGenOptions.def
===================================================================
--- clang/include/clang/Basic/CodeGenOptions.def
+++ clang/include/clang/Basic/CodeGenOptions.def
@@ -231,6 +231,9 @@
 ENUM_CODEGENOPT(SanitizeAddressDtor, llvm::AsanDtorKind, 2,
                 llvm::AsanDtorKind::Global)  ///< Set how ASan global
                                              ///< destructors are emitted.
+CODEGENOPT(SanitizeMemoryParamRetval, 1, 0) ///< Enable detection of uninitialized
+                                            ///< parameters and return values
+                                            ///< in MemorySanitizer
 CODEGENOPT(SanitizeMemoryUseAfterDtor, 1, 0) ///< Enable use-after-delete detection
                                              ///< in MemorySanitizer
 CODEGENOPT(SanitizeCfiCrossDso, 1, 0) ///< Enable cross-dso support in CFI.


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