[PATCH] D80647: [Driver] Support -fsanitize=shadow-call-stack on aarch64_be

[Fangrui Song via Phabricator via cfe-commits]

MaskRay created this revision.
MaskRay added reviewers: nickdesaulniers, kcc, pcc.
Herald added subscribers: cfe-commits, danielkiss, kristof.beyls.
Herald added a project: clang.
nickdesaulniers accepted this revision.
nickdesaulniers added a comment.
This revision is now accepted and ready to land.
pcc accepted this revision.

thanks for the quick fix


pcc added a comment.

LGTM


Fixes https://bugs.llvm.org/show_bug.cgi?id=46076


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D80647

Files:
  clang/lib/Driver/SanitizerArgs.cpp
  clang/test/Driver/fsanitize.c


Index: clang/test/Driver/fsanitize.c
===================================================================
--- clang/test/Driver/fsanitize.c
+++ clang/test/Driver/fsanitize.c
@@ -813,6 +813,10 @@
 // CHECK-SCS-MINIMAL: "-fsanitize=shadow-call-stack"
 // CHECK-SCS-MINIMAL: "-fsanitize-minimal-runtime"
 
+// RUN: %clang -target aarch64 -fsanitize=shadow-call-stack %s -### 2>&1 | FileCheck %s --check-prefix=AARCH64-SHADOW
+// RUN: %clang -target aarch64_be -fsanitize=shadow-call-stack %s -### 2>&1 | FileCheck %s --check-prefix=AARCH64-SHADOW
+// AARCH64-SHADOW: "-fsanitize=shadow-call-stack"
+
 // RUN: %clang -target aarch64-linux-gnu -fsanitize=scudo %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SCUDO
 // RUN: %clang -target arm-linux-androideabi -fsanitize=scudo %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SCUDO
 // RUN: %clang -target x86_64-linux-gnu -fsanitize=scudo %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SCUDO
Index: clang/lib/Driver/SanitizerArgs.cpp
===================================================================
--- clang/lib/Driver/SanitizerArgs.cpp
+++ clang/lib/Driver/SanitizerArgs.cpp
@@ -489,8 +489,7 @@
         << lastArgumentForMask(D, Args, Kinds & NeedsLTO) << "-flto";
   }
 
-  if ((Kinds & SanitizerKind::ShadowCallStack) &&
-      TC.getTriple().getArch() == llvm::Triple::aarch64 &&
+  if ((Kinds & SanitizerKind::ShadowCallStack) && TC.getTriple().isAArch64() &&
       !llvm::AArch64::isX18ReservedByDefault(TC.getTriple()) &&
       !Args.hasArg(options::OPT_ffixed_x18)) {
     D.Diag(diag::err_drv_argument_only_allowed_with)


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