[Lldb-commits] [lldb] [lldb] fix arm64e tests not compiling with an arm64e target (PR #216397)

[Augusto Noronha via lldb-commits]

https://github.com/augusto2112 created https://github.com/llvm/llvm-project/pull/216397

Arm64eTestBase.build() only overrode TRIPLE, but ARCH_CFLAGS is a Make command-line variable set separately by the test harness to a non-arm64e flag. A plain in-Makefile assignment can't override a command-line variable, so the compiler silently fell back to the host's default (non-arm64e) triple and __ptrauth attributes failed to compile. Now overrides ARCH_CFLAGS too.

>From e16b6968d879770b72add23f5799fdcedee38fbf Mon Sep 17 00:00:00 2001
From: Augusto Noronha <anoronha at apple.com>
Date: Fri, 14 Aug 2026 13:46:49 -0700
Subject: [PATCH] [lldb] fix arm64e tests not compiling with an arm64e target

Arm64eTestBase.build() only overrode TRIPLE, but ARCH_CFLAGS is a Make command-line variable set separately by the test harness to a non-arm64e flag. A plain in-Makefile assignment can't override a command-line variable, so the compiler silently fell back to the host's default (non-arm64e) triple and __ptrauth attributes failed to compile. Now overrides ARCH_CFLAGS too.
---
 lldb/packages/Python/lldbsuite/test/lldbarm64e.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lldb/packages/Python/lldbsuite/test/lldbarm64e.py b/lldb/packages/Python/lldbsuite/test/lldbarm64e.py
index a16ea85f8bfcd..f6c8f5b962670 100644
--- a/lldb/packages/Python/lldbsuite/test/lldbarm64e.py
+++ b/lldb/packages/Python/lldbsuite/test/lldbarm64e.py
@@ -6,6 +6,8 @@
 @skipUnlessArm64eSupported
 class Arm64eTestBase(TestBase):
     def build(self):
+        triple = configuration.triple.replace("arm64-", "arm64e-")
         super().build(
-            dictionary={"TRIPLE": configuration.triple.replace("arm64-", "arm64e-")}
+            dictionary={"TRIPLE": triple, "ARCH_CFLAGS": "-target " + triple}
         )
+