From 55abdef3dac681866503ab286c3be6b4e8be3a9a Mon Sep 17 00:00:00 2001 From: =?utf8?q?Martin=20Storsj=C3=B6?= Date: Wed, 5 Apr 2023 14:12:24 +0300 Subject: [PATCH] [libunwind] Increase the external value of _LIBUNWIND_CURSOR_SIZE for SEH/x86_64 For x86_64 Windows targets (that use SEH), _LIBUNWIND_CURSOR_SIZE is 204; this fixes corruption in test cases that include libunwind.h without manually defining _LIBUNWIND_IS_NATIVE_ONLY. If the libunwind.h header is included without defining _LIBUNWIND_IS_NATIVE_ONLY (like in the libunwind test cases), the sizes are set to accommodate the maximum possible cursors and contexts. (Alternatively, __libunwind_config.h should be changed to default to native unwinding unless cross unwinding has been requested. Cross unwinding isn't implemented as far as I know anyway.) Differential Revision: https://reviews.llvm.org/D147634 --- libunwind/include/__libunwind_config.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libunwind/include/__libunwind_config.h b/libunwind/include/__libunwind_config.h index a4e1a36..a317a36 100644 --- a/libunwind/include/__libunwind_config.h +++ b/libunwind/include/__libunwind_config.h @@ -198,7 +198,7 @@ # define _LIBUNWIND_TARGET_S390X 1 #define _LIBUNWIND_TARGET_LOONGARCH 1 # define _LIBUNWIND_CONTEXT_SIZE 167 -# define _LIBUNWIND_CURSOR_SIZE 179 +# define _LIBUNWIND_CURSOR_SIZE 204 # define _LIBUNWIND_HIGHEST_DWARF_REGISTER 287 #endif // _LIBUNWIND_IS_NATIVE_ONLY -- 2.7.4