[llvm-branch-commits] [clang] release/20.x: [hexagon] Enable --eh-frame-hdr (#130225) (PR #130678)

[via llvm-branch-commits]

https://github.com/llvmbot updated https://github.com/llvm/llvm-project/pull/130678

>From 1a76c29a9ba877c85acf455f05af47039607958b Mon Sep 17 00:00:00 2001
From: Brian Cain <brian.cain at oss.qualcomm.com>
Date: Mon, 10 Mar 2025 16:35:22 -0600
Subject: [PATCH] [hexagon] Enable --eh-frame-hdr (#130225)

The missing `PT_GNU_EH_FRAME` was causing C++ exception handling test
failures in llvm-test-suite. We should unconditionally add this argument
like the other drivers do.

Discovered-by: Alexey Karyakin <akaryaki at quicinc.com>
Fixes: #129745
(cherry picked from commit 6657769199ad625ea0cb7f7c054d4f6a27806080)
---
 clang/lib/Driver/ToolChains/Hexagon.cpp     | 1 +
 clang/test/Driver/hexagon-toolchain-elf.c   | 1 +
 clang/test/Driver/hexagon-toolchain-linux.c | 1 +
 3 files changed, 3 insertions(+)

diff --git a/clang/lib/Driver/ToolChains/Hexagon.cpp b/clang/lib/Driver/ToolChains/Hexagon.cpp
index 76cedf312d68a..772a9827cb211 100644
--- a/clang/lib/Driver/ToolChains/Hexagon.cpp
+++ b/clang/lib/Driver/ToolChains/Hexagon.cpp
@@ -313,6 +313,7 @@ constructHexagonLinkArgs(Compilation &C, const JobAction &JA,
                                      // handled somewhere else.
   Args.ClaimAllArgs(options::OPT_static_libgcc);
 
+  CmdArgs.push_back("--eh-frame-hdr");
   //----------------------------------------------------------------------------
   //
   //----------------------------------------------------------------------------
diff --git a/clang/test/Driver/hexagon-toolchain-elf.c b/clang/test/Driver/hexagon-toolchain-elf.c
index be812dda40d57..de2ebfeeda26c 100644
--- a/clang/test/Driver/hexagon-toolchain-elf.c
+++ b/clang/test/Driver/hexagon-toolchain-elf.c
@@ -555,6 +555,7 @@
 // RUN:   -ccc-install-dir %S/Inputs/hexagon_tree/Tools/bin \
 // RUN:   -mcpu=hexagonv60 \
 // RUN:   -fuse-ld=lld %s 2>&1 | FileCheck -check-prefix=CHECK382 %s
+// CHECK382:          "--eh-frame-hdr
 // CHECK382-NOT:      "-march=
 // CHECK382-NOT:      "-mcpu=
 // -----------------------------------------------------------------------------
diff --git a/clang/test/Driver/hexagon-toolchain-linux.c b/clang/test/Driver/hexagon-toolchain-linux.c
index 6f7f3b20f9141..e791353cca07f 100644
--- a/clang/test/Driver/hexagon-toolchain-linux.c
+++ b/clang/test/Driver/hexagon-toolchain-linux.c
@@ -127,6 +127,7 @@
 // RUN:    --target=hexagon-unknown-linux-musl %s -### 2>&1 \
 // RUN:    | FileCheck -check-prefix=CHECK011 %s
 // CHECK011:   InstalledDir: [[INSTALLED_DIR:.+]]
+// CHECK011:   "--eh-frame-hdr"
 // CHECK011:   crt1.o
 // CHECK011-NOT:  "-lunwind"
 // CHECK011-NOT:  "-lgcc_eh"