[libunwind] e88a2f1 - [libunwind][WebAssembly] Omit unused parts of libunwind.cpp for Wasm (#73196)

[via cfe-commits]

Author: Heejin Ahn
Date: 2023-11-29T18:03:58-08:00
New Revision: e88a2f123fa4843ae3782377668cf5741acc9121

URL: https://github.com/llvm/llvm-project/commit/e88a2f123fa4843ae3782377668cf5741acc9121
DIFF: https://github.com/llvm/llvm-project/commit/e88a2f123fa4843ae3782377668cf5741acc9121.diff

LOG: [libunwind][WebAssembly] Omit unused parts of libunwind.cpp for Wasm (#73196)

Wasm doesn't use most of that file; Wasm does not allow access of system
registers and those functionalities are provided from the VM.

Added: 
    

Modified: 
    libunwind/src/libunwind.cpp

Removed: 
    


################################################################################
diff  --git a/libunwind/src/libunwind.cpp b/libunwind/src/libunwind.cpp
index 1bd18659b7860c0..cd610377b63de8d 100644
--- a/libunwind/src/libunwind.cpp
+++ b/libunwind/src/libunwind.cpp
@@ -26,7 +26,7 @@
 #include <sanitizer/asan_interface.h>
 #endif
 
-#if !defined(__USING_SJLJ_EXCEPTIONS__)
+#if !defined(__USING_SJLJ_EXCEPTIONS__) || !defined(__USING_WASM_EXCEPTIONS__)
 #include "AddressSpace.hpp"
 #include "UnwindCursor.hpp"
 
@@ -347,7 +347,8 @@ void __unw_remove_dynamic_eh_frame_section(unw_word_t eh_frame_start) {
 }
 
 #endif // defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND)
-#endif // !defined(__USING_SJLJ_EXCEPTIONS__)
+#endif // !defined(__USING_SJLJ_EXCEPTIONS__) ||
+       // !defined(__USING_WASM_EXCEPTIONS__)
 
 #ifdef __APPLE__