[libunwind] eb1f9cc - [libunwind] Fix compilation for the x32 ABI. (#116608)

[via cfe-commits]

Author: Alex Rønne Petersen
Date: 2024-12-15T05:57:51-05:00
New Revision: eb1f9cced9e878362aeac18e120895995f759ee3

URL: https://github.com/llvm/llvm-project/commit/eb1f9cced9e878362aeac18e120895995f759ee3
DIFF: https://github.com/llvm/llvm-project/commit/eb1f9cced9e878362aeac18e120895995f759ee3.diff

LOG: [libunwind] Fix compilation for the x32 ABI. (#116608)

This would previously fail the static assertions in `UnwindCursor.hpp`
due to `UnwindCursor`'s size not matching `unw_cursor_t`'s size. As is
done for MIPS N32, this just declares the appropriate size in
`__libunwind_config.h`.

Added: 
    

Modified: 
    libunwind/include/__libunwind_config.h

Removed: 
    


################################################################################
diff  --git a/libunwind/include/__libunwind_config.h b/libunwind/include/__libunwind_config.h
index 028b9e3baa8065..bb7fe4c83a3c17 100644
--- a/libunwind/include/__libunwind_config.h
+++ b/libunwind/include/__libunwind_config.h
@@ -53,6 +53,9 @@
 #    else
 #      define _LIBUNWIND_CURSOR_SIZE 66
 #    endif
+#  elif defined(__ILP32__)
+#    define _LIBUNWIND_CONTEXT_SIZE 21
+#    define _LIBUNWIND_CURSOR_SIZE 28
 #  else
 #    define _LIBUNWIND_CONTEXT_SIZE 21
 #    define _LIBUNWIND_CURSOR_SIZE 33