File compiler-rt-D88922-nostdlib.patch of Package llvm11

diff -ur compiler-rt-11.0.1.src.orig/CMakeLists.txt compiler-rt-11.0.1.src/CMakeLists.txt
--- compiler-rt-11.0.1.src.orig/CMakeLists.txt	2023-04-01 19:59:58.484402956 +0200
+++ compiler-rt-11.0.1.src/CMakeLists.txt	2023-04-01 20:07:17.504254514 +0200
@@ -197,7 +197,11 @@
 pythonize_bool(SANITIZER_CAN_USE_CXXABI)
 
 macro(handle_default_cxx_lib var)
-  if (${var} STREQUAL "default")
+  # Specifying -stdlib= in CMAKE_CXX_FLAGS overrides the defaults.
+  if (CMAKE_CXX_FLAGS MATCHES "-stdlib=([a-zA-Z+]*)")
+    set(${var}_LIBNAME "${CMAKE_MATCH_1}")
+    set(${var}_SYSTEM 1)
+  elseif (${var} STREQUAL "default")
     if (APPLE OR CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
       set(${var}_LIBNAME "libc++")
       set(${var}_SYSTEM 1)
@@ -451,6 +455,25 @@
   list(APPEND SANITIZER_COMMON_LINK_LIBS zircon)
 endif()
 
+# TODO: COMPILER_RT_COMMON_CFLAGS and COMPILER_RT_COMMON_LINK_FLAGS are
+# intended for use in non-sanitizer runtimes such as libFuzzer, profile or XRay,
+# move these higher to include common flags, then derive SANITIZER_COMMON_CFLAGS
+# and SANITIZER_COMMON_LINK_FLAGS from those and append sanitizer-specific flags.
+set(COMPILER_RT_COMMON_CFLAGS ${SANITIZER_COMMON_CFLAGS})
+set(COMPILER_RT_COMMON_LINK_FLAGS ${SANITIZER_COMMON_LINK_FLAGS})
+
+# We don't use the C++ standard library, so avoid including it by mistake.
+append_list_if(COMPILER_RT_HAS_NOSTDINCXX_FLAG -nostdinc++ SANITIZER_COMMON_CFLAGS)
+append_list_if(COMPILER_RT_HAS_NOSTDLIBXX_FLAG -nostdlib++ SANITIZER_COMMON_LINK_FLAGS)
+
+# Remove -stdlib= which is unused when passing -nostdinc++...
+string(REGEX MATCHALL "-stdlib=[a-zA-Z+]*" stdlib_flag ${CMAKE_CXX_FLAGS})
+string(REGEX REPLACE "-stdlib=[a-zA-Z+]*" "" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
+
+# ...we need it to build some runtimes and tests so readd it where appropriate.
+list(APPEND COMPILER_RT_COMMON_CFLAGS ${stdlib_flag})
+list(APPEND COMPILER_RT_COMMON_LINK_FLAGS ${stdlib_flag})
+
 macro(append_libcxx_libs var)
   if (${var}_INTREE)
     if (SANITIZER_USE_STATIC_LLVM_UNWINDER AND (TARGET unwind_static OR HAVE_LIBUNWIND))
@@ -483,6 +506,12 @@
   append_list_if(COMPILER_RT_HAS_LIBSTDCXX stdc++ SANITIZER_TEST_CXX_LIBRARIES)
 endif()
 
+# TODO: There's a lot of duplication across lib/*/tests/CMakeLists.txt files,
+# move some of the common flags to COMPILER_RT_UNITTEST_CFLAGS.
+
+# Unittests need access to C++ standard library.
+string(APPEND COMPILER_RT_TEST_COMPILER_CFLAGS " ${stdlib_flag}")
+
 # Warnings to turn off for all libraries, not just sanitizers.
 append_string_if(COMPILER_RT_HAS_WUNUSED_PARAMETER_FLAG -Wno-unused-parameter CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
 
diff -ur compiler-rt-11.0.1.src.orig/lib/fuzzer/CMakeLists.txt compiler-rt-11.0.1.src/lib/fuzzer/CMakeLists.txt
--- compiler-rt-11.0.1.src.orig/lib/fuzzer/CMakeLists.txt	2023-04-01 19:59:58.552404786 +0200
+++ compiler-rt-11.0.1.src/lib/fuzzer/CMakeLists.txt	2023-04-01 20:04:46.860181641 +0200
@@ -53,14 +53,13 @@
   }
   " HAS_THREAD_LOCAL)
 
-set(LIBFUZZER_CFLAGS ${SANITIZER_COMMON_CFLAGS})
+set(LIBFUZZER_CFLAGS ${COMPILER_RT_COMMON_CFLAGS})
 
 if(OS_NAME MATCHES "Linux|Fuchsia" AND
    COMPILER_RT_LIBCXX_PATH AND
    COMPILER_RT_LIBCXXABI_PATH)
-  list(APPEND LIBFUZZER_CFLAGS -nostdinc++ -D_LIBCPP_ABI_VERSION=Fuzzer)
-  # Remove -stdlib= which is unused when passing -nostdinc++.
-  string(REGEX REPLACE "-stdlib=[a-zA-Z+]*" "" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
+  list(APPEND LIBFUZZER_CFLAGS -D_LIBCPP_ABI_VERSION=Fuzzer)
+  append_list_if(COMPILER_RT_HAS_NOSTDINCXX_FLAG -nostdinc++ LIBFUZZER_CFLAGS)
 elseif(TARGET cxx-headers OR HAVE_LIBCXX)
   set(LIBFUZZER_DEPS cxx-headers)
 endif()
Nur in compiler-rt-11.0.1.src/lib/fuzzer: CMakeLists.txt.orig.
diff -ur compiler-rt-11.0.1.src.orig/lib/sanitizer_common/tests/CMakeLists.txt compiler-rt-11.0.1.src/lib/sanitizer_common/tests/CMakeLists.txt
--- compiler-rt-11.0.1.src.orig/lib/sanitizer_common/tests/CMakeLists.txt	2023-04-01 19:59:58.576405432 +0200
+++ compiler-rt-11.0.1.src/lib/sanitizer_common/tests/CMakeLists.txt	2023-04-01 20:04:46.860181641 +0200
@@ -210,9 +210,7 @@
       $<TARGET_OBJECTS:RTSanitizerCommon.${arch}>
       $<TARGET_OBJECTS:RTSanitizerCommonLibc.${arch}>
       $<TARGET_OBJECTS:RTSanitizerCommonSymbolizer.${arch}>)
-    set_target_compile_flags(SanitizerTest
-      ${SANITIZER_COMMON_CFLAGS}
-      ${SANITIZER_TEST_CFLAGS_COMMON})
+    set_target_compile_flags(SanitizerTest ${SANITIZER_TEST_CFLAGS_COMMON})
     # Setup correct output directory and link flags.
     set_target_properties(SanitizerTest PROPERTIES
       RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
diff -ur compiler-rt-11.0.1.src.orig/lib/xray/CMakeLists.txt compiler-rt-11.0.1.src/lib/xray/CMakeLists.txt
--- compiler-rt-11.0.1.src.orig/lib/xray/CMakeLists.txt	2023-04-01 19:59:58.596405971 +0200
+++ compiler-rt-11.0.1.src/lib/xray/CMakeLists.txt	2023-04-01 20:04:46.860181641 +0200
@@ -132,7 +132,7 @@
 include_directories(..)
 include_directories(../../include)
 
-set(XRAY_CFLAGS ${SANITIZER_COMMON_CFLAGS})
+set(XRAY_CFLAGS ${COMPILER_RT_COMMON_CFLAGS})
 set(XRAY_COMMON_DEFINITIONS XRAY_HAS_EXCEPTIONS=1)
 
 # We don't need RTTI in XRay, so turn that off.
diff --git a/compiler-rt/cmake/config-ix.cmake b/compiler-rt/cmake/config-ix.cmake
index e713f3c6b7c77..d1e01d956a7f2 100644
--- compiler-rt.orig/cmake/config-ix.cmake
+++ compiler-rt/cmake/config-ix.cmake
@@ -122,7 +122,8 @@ check_cxx_compiler_flag(/wd4800 COMPILER_RT_HAS_WD4800_FLAG)
 check_symbol_exists(__func__ "" COMPILER_RT_HAS_FUNC_SYMBOL)
 
 # Includes.
-check_include_files("sys/auxv.h" COMPILER_RT_HAS_AUXV)
+check_cxx_compiler_flag(-nostdinc++ COMPILER_RT_HAS_NOSTDINCXX_FLAG)
+check_include_files("sys/auxv.h"    COMPILER_RT_HAS_AUXV)
 
 # Libraries.
 check_library_exists(dl dlopen "" COMPILER_RT_HAS_LIBDL)
diff --git a/compiler-rt/lib/profile/CMakeLists.txt b/compiler-rt/lib/profile/CMakeLists.txt
index 63532b72ff82e..5ff0e10182b4d 100644
--- compiler-rt.orig/lib/profile/CMakeLists.txt
+++ compiler-rt/lib/profile/CMakeLists.txt
@@ -111,6 +111,9 @@ if(COMPILER_RT_TARGET_HAS_UNAME)
      -DCOMPILER_RT_HAS_UNAME=1)
 endif()
 
+# We don't use the C++ Standard Library here, so avoid including it by mistake.
+append_list_if(COMPILER_RT_HAS_NOSTDINCXX_FLAG -nostdinc++ EXTRA_FLAGS)
+
 # This appears to be a C-only warning banning the use of locals in aggregate
 # initializers. All other compilers accept this, though.
 # nonstandard extension used : 'identifier' : cannot be initialized using address of automatic variable