[libunwind] Remove the legacy Unwind_AppleExtras.cpp

Unwind_AppleExtras.cpp contained annotations telling the linker that some symbols are not available on some very old platforms. However, those platforms are not supported anymore, so the annotations are not used. Why remove this? In addition to cleaning up the code base, this also removes the possibility of implementing those annotations incorrectly (which was the case previously), which could lead to important symbols being hidden when they should have been visible. Differential Revision: https://reviews.llvm.org/D148445
llvm · Apr 18, 2023 · 1ae57fe · 1ae57fe
1 parent 95cb986
commit 1ae57fe
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diff --git a/libunwind/src/CMakeLists.txt b/libunwind/src/CMakeLists.txt
@@ -5,11 +5,6 @@ set(LIBUNWIND_CXX_SOURCES
     Unwind-EHABI.cpp
     Unwind-seh.cpp
     )
-if(APPLE)
-  list(APPEND LIBUNWIND_CXX_SOURCES
-    Unwind_AppleExtras.cpp
-    )
-endif()
 
 if(${CMAKE_SYSTEM_NAME} MATCHES "AIX")
   list(APPEND LIBUNWIND_CXX_SOURCES

diff --git a/libunwind/src/Unwind_AppleExtras.cpp b/libunwind/src/Unwind_AppleExtras.cpp