sys-devel/llvm: Backport symbolizer test fix to 5.0.1

Backport upstream commits fixing the sanitizer tests to be more
reliable. While at it, move the single old patch to the patchset
tarball. No revbump since it is merely a test suite fix.

Closes: https://bugs.gentoo.org/632267

1 files changed, 0 insertions, 71 deletions

diff --git a/sys-devel/llvm/files/5.0.1/0001-cmake-Pass-Wl-z-nodelete-on-Linux-to-prevent-unloadi.patch b/sys-devel/llvm/files/5.0.1/0001-cmake-Pass-Wl-z-nodelete-on-Linux-to-prevent-unloadi.patch
deleted file mode 100644
index 21702748893c..000000000000
--- a/sys-devel/llvm/files/5.0.1/0001-cmake-Pass-Wl-z-nodelete-on-Linux-to-prevent-unloadi.patch
+++ /dev/null
@@ -1,71 +0,0 @@
-From 937b23b5fffa59deb1dc342cc5602d387d84a762 Mon Sep 17 00:00:00 2001
-From: Michal Gorny <mgorny@gentoo.org>
-Date: Mon, 27 Nov 2017 22:23:09 +0000
-Subject: [PATCH] [cmake] Pass -Wl,-z,nodelete on Linux to prevent unloading
-
-Prevent unloading shared libraries on Linux when dlclose() is called.
-This is necessary since command-line option parsing API relies on
-registering the global option instances in the option parser instance
-which can be loaded in a different shared library.
-
-Given that we can't reliably remove those options when a library is
-unloaded, the parser ends up containing dangling references. Since glibc
-has relatively complex library unloading rules, some of the LLVM
-libraries can be unloaded while others (including the Support library)
-stay loaded causing quite a mayhem. To reliably prevent that, just
-forbid unloading all libraries -- it's a very bad idea anyway.
-
-While the issue arguably happens only with BUILD_SHARED_LIBS, it may
-affect any library reusing llvm::cl interface.
-
-Based on patch provided Ross Hayward on https://bugs.gentoo.org/617154.
-Previously hit by Fedora back in Feb 2016:
-https://lists.freedesktop.org/archives/mesa-dev/2016-February/107242.html
-
-Differential Revision: https://reviews.llvm.org/D40459
-
-git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319105 91177308-0d34-0410-b5e6-96231b3b80d8
----
- cmake/modules/HandleLLVMOptions.cmake           | 8 ++++++++
- unittests/Support/DynamicLibrary/CMakeLists.txt | 7 +++++++
- 2 files changed, 15 insertions(+)
-
-diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake
-index c5390371845..b5059a8a60e 100644
---- a/cmake/modules/HandleLLVMOptions.cmake
-+++ b/cmake/modules/HandleLLVMOptions.cmake
-@@ -151,6 +151,14 @@ if(NOT (${CMAKE_SYSTEM_NAME} MATCHES "Darwin" OR WIN32 OR CYGWIN OR
-   set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,-z,defs")
- endif()
- 
-+# Pass -Wl,-z,nodelete. This makes sure our shared libraries are not unloaded
-+# by dlclose(). We need that since the CLI API relies on cross-references
-+# between global objects which became horribly broken when one of the libraries
-+# is unloaded.
-+if(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
-+  set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,-z,nodelete")
-+endif()
-+
- 
- function(append value)
-   foreach(variable ${ARGN})
-diff --git a/unittests/Support/DynamicLibrary/CMakeLists.txt b/unittests/Support/DynamicLibrary/CMakeLists.txt
-index 9355979221a..c6201b1ad31 100644
---- a/unittests/Support/DynamicLibrary/CMakeLists.txt
-+++ b/unittests/Support/DynamicLibrary/CMakeLists.txt
-@@ -24,5 +24,12 @@ function(dynlib_add_module NAME)
-   add_dependencies(DynamicLibraryTests ${NAME})
- endfunction(dynlib_add_module)
- 
-+# Revert -Wl,-z,nodelete on this test since it relies on the file
-+# being unloaded.
-+if(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
-+  string(REPLACE "-Wl,-z,nodelete" "" CMAKE_SHARED_LINKER_FLAGS
-+    ${CMAKE_SHARED_LINKER_FLAGS})
-+endif()
-+
- dynlib_add_module(PipSqueak)
- dynlib_add_module(SecondLib)
--- 
-2.15.1
-