[llvm-branch-commits] [clang] release/19.x: [PAC][clang] Enable `-fptrauth-indirect-gotos` as part of pauthtest ABI (#100480) (PR #100484)

[via llvm-branch-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-driver

Author: None (llvmbot)

<details>
<summary>Changes</summary>

Backport 3f6eb13abf643afec17a73448ede380606531226

Requested by: @<!-- -->asl

---
Full diff: https://github.com/llvm/llvm-project/pull/100484.diff


2 Files Affected:

- (modified) clang/lib/Driver/ToolChains/Clang.cpp (+4) 
- (modified) clang/test/Driver/aarch64-ptrauth.c (+3-3) 


``````````diff
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 78936fd634f33..5de29f1eca614 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -1516,6 +1516,10 @@ static void handlePAuthABI(const ArgList &DriverArgs, ArgStringList &CC1Args) {
           options::OPT_fno_ptrauth_vtable_pointer_type_discrimination))
     CC1Args.push_back("-fptrauth-vtable-pointer-type-discrimination");
 
+  if (!DriverArgs.hasArg(options::OPT_fptrauth_indirect_gotos,
+                         options::OPT_fno_ptrauth_indirect_gotos))
+    CC1Args.push_back("-fptrauth-indirect-gotos");
+
   if (!DriverArgs.hasArg(options::OPT_fptrauth_init_fini,
                          options::OPT_fno_ptrauth_init_fini))
     CC1Args.push_back("-fptrauth-init-fini");
diff --git a/clang/test/Driver/aarch64-ptrauth.c b/clang/test/Driver/aarch64-ptrauth.c
index d13930e8f4b37..eeb9500792d75 100644
--- a/clang/test/Driver/aarch64-ptrauth.c
+++ b/clang/test/Driver/aarch64-ptrauth.c
@@ -19,16 +19,16 @@
 // RUN: %clang -### -c --target=aarch64-linux-pauthtest %s 2>&1 | FileCheck %s --check-prefix=PAUTHABI1
 // PAUTHABI1:      "-cc1"{{.*}} "-triple" "aarch64-unknown-linux-pauthtest"
 // PAUTHABI1-SAME: "-target-abi" "pauthtest"
-// PAUTHABI1-SAME: "-fptrauth-intrinsics" "-fptrauth-calls" "-fptrauth-returns" "-fptrauth-auth-traps" "-fptrauth-vtable-pointer-address-discrimination" "-fptrauth-vtable-pointer-type-discrimination" "-fptrauth-init-fini"
+// PAUTHABI1-SAME: "-fptrauth-intrinsics" "-fptrauth-calls" "-fptrauth-returns" "-fptrauth-auth-traps" "-fptrauth-vtable-pointer-address-discrimination" "-fptrauth-vtable-pointer-type-discrimination" "-fptrauth-indirect-gotos" "-fptrauth-init-fini"
 
 // RUN: %clang -### -c --target=aarch64 -mabi=pauthtest -fno-ptrauth-intrinsics \
 // RUN:   -fno-ptrauth-calls -fno-ptrauth-returns -fno-ptrauth-auth-traps \
 // RUN:   -fno-ptrauth-vtable-pointer-address-discrimination -fno-ptrauth-vtable-pointer-type-discrimination \
-// RUN:   -fno-ptrauth-init-fini %s 2>&1 | FileCheck %s --check-prefix=PAUTHABI2
+// RUN:   -fno-ptrauth-indirect-gotos -fno-ptrauth-init-fini %s 2>&1 | FileCheck %s --check-prefix=PAUTHABI2
 // RUN: %clang -### -c --target=aarch64-pauthtest -fno-ptrauth-intrinsics \
 // RUN:   -fno-ptrauth-calls -fno-ptrauth-returns -fno-ptrauth-auth-traps \
 // RUN:   -fno-ptrauth-vtable-pointer-address-discrimination -fno-ptrauth-vtable-pointer-type-discrimination \
-// RUN:   -fno-ptrauth-init-fini %s 2>&1 | FileCheck %s --check-prefix=PAUTHABI2
+// RUN:   -fno-ptrauth-indirect-gotos -fno-ptrauth-init-fini %s 2>&1 | FileCheck %s --check-prefix=PAUTHABI2
 // PAUTHABI2:     "-cc1"
 // PAUTHABI2-NOT: "-fptrauth-
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/100484