Zebediah Figura : msvcrt: Add SEH annotations for sse2_memcpy().

[Alexandre Julliard]

Module: wine
Branch: oldstable
Commit: b17e54de418eac8a5e282102c5a1b2570faa6154
URL:    https://gitlab.winehq.org/wine/wine/-/commit/b17e54de418eac8a5e282102c5a1b25...

Author: Zebediah Figura 
Date:   Thu Sep  1 17:02:24 2022 -0500

msvcrt: Add SEH annotations for sse2_memcpy().

This allows unwinding from a crash inside the function.

(cherry picked from commit 57140421378ade6a5b5dea32bb94a1e8ab92906f)
Signed-off-by: Michael Stefaniuc

---

dlls/msvcrt/string.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/msvcrt/string.c b/dlls/msvcrt/string.c
index d92b7a38d12..5071d2fa8b3 100644
--- a/dlls/msvcrt/string.c
+++ b/dlls/msvcrt/string.c
@@ -2724,8 +2724,11 @@ int __cdecl memcmp(const void *ptr1, const void *ptr2, size_t n)

#define MEMMOVE_INIT \
     "pushq " SRC_REG "\n\t" \
+    __ASM_SEH(".seh_pushreg " SRC_REG "\n\t") \
     __ASM_CFI(".cfi_adjust_cfa_offset 8\n\t") \
     "pushq " DEST_REG "\n\t" \
+    __ASM_SEH(".seh_pushreg " DEST_REG "\n\t") \
+    __ASM_SEH(".seh_endprologue\n\t") \
     __ASM_CFI(".cfi_adjust_cfa_offset 8\n\t") \
     "movq %rcx, " DEST_REG "\n\t" \
     "movq %rdx, " SRC_REG "\n\t"