From 8ef0cdb22da1fd3c96ff58c2e3221ef11e57dd2c Mon Sep 17 00:00:00 2001
From: Tom Stellard <tstellar@redhat.com>
Date: Jun 08 2021 17:41:09 +0000
Subject: Only enable -funwind-tables by default on Fedora arches


.eh_frame sections confuse bpf tools, so -funwind-tables  shouldn't be enabled there.
There are other non-CPU arches where this could potentially cause problems, so be
conservative and only enable this on CPU arches supported by Fedora.

---

diff --git a/0002-PATCH-clang-Make-funwind-tables-the-default-on-all-a.patch b/0002-PATCH-clang-Make-funwind-tables-the-default-on-all-a.patch
index 0a29dd4..5eb4b3b 100644
--- a/0002-PATCH-clang-Make-funwind-tables-the-default-on-all-a.patch
+++ b/0002-PATCH-clang-Make-funwind-tables-the-default-on-all-a.patch
@@ -1,40 +1,29 @@
-From 07b062e1f7c3359550aa8c0a7b86f6054971439d Mon Sep 17 00:00:00 2001
+From c87abee7356b8fde81512ffceadd520776c465d2 Mon Sep 17 00:00:00 2001
 From: serge-sans-paille <sguelton@redhat.com>
 Date: Thu, 25 Feb 2021 14:09:29 +0100
-Subject: [PATCH 2/6] [PATCH][clang] Make -funwind-tables the default on all
- archs
+Subject: [PATCH] [PATCH][clang] Make -funwind-tables the default on all archs
 
 ---
- clang/lib/Driver/ToolChain.cpp      | 2 +-
- clang/lib/Driver/ToolChains/Gnu.cpp | 2 +-
- 2 files changed, 2 insertions(+), 2 deletions(-)
+ clang/lib/Driver/ToolChains/Gnu.cpp | 6 ++++++
+ 1 file changed, 6 insertions(+)
 
-diff --git a/clang/lib/Driver/ToolChain.cpp b/clang/lib/Driver/ToolChain.cpp
-index b2ddef1..715b323 100644
---- a/clang/lib/Driver/ToolChain.cpp
-+++ b/clang/lib/Driver/ToolChain.cpp
-@@ -257,7 +257,7 @@ std::string ToolChain::getInputFilename(const InputInfo &Input) const {
- }
- 
- bool ToolChain::IsUnwindTablesDefault(const ArgList &Args) const {
--  return false;
-+  return true;
- }
- 
- Tool *ToolChain::getClang() const {
 diff --git a/clang/lib/Driver/ToolChains/Gnu.cpp b/clang/lib/Driver/ToolChains/Gnu.cpp
-index 1d8a3cd..5deeb10 100644
+index a27841dc5985..7489e6785150 100644
 --- a/clang/lib/Driver/ToolChains/Gnu.cpp
 +++ b/clang/lib/Driver/ToolChains/Gnu.cpp
-@@ -2713,7 +2713,7 @@ bool Generic_GCC::IsUnwindTablesDefault(const ArgList &Args) const {
+@@ -2709,6 +2709,12 @@ bool Generic_GCC::IsUnwindTablesDefault(const ArgList &Args) const {
+   case llvm::Triple::ppc64:
+   case llvm::Triple::ppc64le:
    case llvm::Triple::x86_64:
++
++  // Enable -funwind-tables on all architectures supported by Fedora:
++  // rhbz#1655546
++  case llvm::Triple::x86:
++  case llvm::Triple::systemz:
++  case llvm::Triple::arm:
      return true;
    default:
--    return false;
-+    return true;
-   }
- }
- 
+     return false;
 -- 
-1.8.3.1
+2.27.0
 
diff --git a/clang.spec b/clang.spec
index ec3a85b..10a6512 100644
--- a/clang.spec
+++ b/clang.spec
@@ -66,7 +66,7 @@
 
 Name:		%pkg_name
 Version:	%{clang_version}%{?rc_ver:~rc%{rc_ver}}
-Release:	2%{?dist}
+Release:	3%{?dist}
 Summary:	A C language family front-end for LLVM
 
 License:	NCSA
@@ -532,6 +532,9 @@ false
 
 %endif
 %changelog
+* Tue Jun 08 2021 Tom Stellard <tstellar@redhat.com> - 12.0.1~rc1-3
+- Only enable -funwind-tables by default on Fedora arches
+
 * Fri Jun 04 2021 Python Maint <python-maint@redhat.com> - 12.0.1~rc1-2
 - Rebuilt for Python 3.10