clang/0008-Produce-DWARF4-by-default.patch

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From 62728c7321a2d07f7d22dadc2b8565ad512b3da4 Mon Sep 17 00:00:00 2001
From: Konrad Kleine <kkleine@redhat.com>
Date: Thu, 24 Mar 2022 09:44:21 +0100
Subject: Produce DWARF4 by default
Have a look at the following commit to see when the move from DWARF 4 to 5 first happened upstream:
https://github.com/llvm/llvm-project/commit/d3b26dea16108c427b19b5480c9edc76edf8f5b4?diff=unified
---
clang/include/clang/Driver/ToolChain.h | 2 +-
clang/test/CodeGen/dwarf-version.c | 4 ++--
clang/test/Driver/cl-options.c | 2 +-
clang/test/Driver/clang-g-opts.c | 2 +-
clang/test/Driver/ve-toolchain.c | 2 +-
clang/test/Driver/ve-toolchain.cpp | 2 +-
6 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/clang/include/clang/Driver/ToolChain.h b/clang/include/clang/Driver/ToolChain.h
index f20ab164531b..53c86ee82936 100644
--- a/clang/include/clang/Driver/ToolChain.h
+++ b/clang/include/clang/Driver/ToolChain.h
@@ -535,7 +535,7 @@ public:
// Return the DWARF version to emit, in the absence of arguments
// to the contrary.
- virtual unsigned GetDefaultDwarfVersion() const { return 5; }
+ virtual unsigned GetDefaultDwarfVersion() const { return 4; }
// Some toolchains may have different restrictions on the DWARF version and
// may need to adjust it. E.g. NVPTX may need to enforce DWARF2 even when host
diff --git a/clang/test/CodeGen/dwarf-version.c b/clang/test/CodeGen/dwarf-version.c
index 0a6fa4768026..96f01749d0d8 100644
--- a/clang/test/CodeGen/dwarf-version.c
+++ b/clang/test/CodeGen/dwarf-version.c
@@ -2,8 +2,8 @@
// RUN: %clang -target x86_64-linux-gnu -gdwarf-3 -S -emit-llvm -o - %s | FileCheck %s --check-prefix=VER3
// RUN: %clang -target x86_64-linux-gnu -gdwarf-4 -S -emit-llvm -o - %s | FileCheck %s --check-prefix=VER4
// RUN: %clang -target x86_64-linux-gnu -gdwarf-5 -S -emit-llvm -o - %s | FileCheck %s --check-prefix=VER5
-// RUN: %clang -target x86_64-linux-gnu -g -S -emit-llvm -o - %s | FileCheck %s --check-prefix=VER5
-// RUN: %clang -target x86_64-linux-gnu -gdwarf -S -emit-llvm -o - %s | FileCheck %s --check-prefix=VER5
+// RUN: %clang -target x86_64-linux-gnu -g -S -emit-llvm -o - %s | FileCheck %s --check-prefix=VER4
+// RUN: %clang -target x86_64-linux-gnu -gdwarf -S -emit-llvm -o - %s | FileCheck %s --check-prefix=VER4
// The -isysroot is used as a hack to avoid LIT messing with the SDKROOT
// environment variable which indirecty overrides the version in the target
diff --git a/clang/test/Driver/cl-options.c b/clang/test/Driver/cl-options.c
index a2e350a0a835..01889ba0bf9b 100644
--- a/clang/test/Driver/cl-options.c
+++ b/clang/test/Driver/cl-options.c
@@ -570,7 +570,7 @@
// RUN: %clang_cl /Z7 -gdwarf /c -### -- %s 2>&1 | FileCheck -check-prefix=Z7_gdwarf %s
// Z7_gdwarf: "-gcodeview"
// Z7_gdwarf: "-debug-info-kind=constructor"
-// Z7_gdwarf: "-dwarf-version=
+// Z7_gdwarf: "-dwarf-version=4
// RUN: %clang_cl -fmsc-version=1800 -TP -### -- %s 2>&1 | FileCheck -check-prefix=CXX11 %s
// CXX11: -std=c++11
diff --git a/clang/test/Driver/clang-g-opts.c b/clang/test/Driver/clang-g-opts.c
index d982b1070cae..bb129e75769c 100644
--- a/clang/test/Driver/clang-g-opts.c
+++ b/clang/test/Driver/clang-g-opts.c
@@ -32,7 +32,7 @@
// CHECK-WITHOUT-G-NOT: -debug-info-kind
// CHECK-WITH-G: "-debug-info-kind=constructor"
-// CHECK-WITH-G: "-dwarf-version=5"
+// CHECK-WITH-G: "-dwarf-version=4"
// CHECK-WITH-G-DWARF2: "-dwarf-version=2"
// CHECK-WITH-G-STANDALONE: "-debug-info-kind=standalone"
diff --git a/clang/test/Driver/ve-toolchain.c b/clang/test/Driver/ve-toolchain.c
index 32e25769b6da..b8a2852daba8 100644
--- a/clang/test/Driver/ve-toolchain.c
+++ b/clang/test/Driver/ve-toolchain.c
@@ -6,7 +6,7 @@
/// Checking dwarf-version
// RUN: %clang -### -g --target=ve %s 2>&1 | FileCheck -check-prefix=DWARF_VER %s
-// DWARF_VER: "-dwarf-version=5"
+// DWARF_VER: "-dwarf-version=4"
///-----------------------------------------------------------------------------
/// Checking include-path
diff --git a/clang/test/Driver/ve-toolchain.cpp b/clang/test/Driver/ve-toolchain.cpp
index 5a33d5eceb61..cedf895b36dc 100644
--- a/clang/test/Driver/ve-toolchain.cpp
+++ b/clang/test/Driver/ve-toolchain.cpp
@@ -7,7 +7,7 @@
// RUN: %clangxx -### -g --target=ve-unknown-linux-gnu \
// RUN: %s 2>&1 | FileCheck -check-prefix=DWARF_VER %s
-// DWARF_VER: "-dwarf-version=5"
+// DWARF_VER: "-dwarf-version=4"
///-----------------------------------------------------------------------------
/// Checking include-path
--
2.37.1