The incspp instruction from CET accepts only the value in the range of 0-255.
The patch fixes the typo in the loop to handle this.
I'm checking in the fix as obvious.
Thanks,
Igor
PR target/85025
* config/i386/shadow-stack-unwind.h: Fix a typo, tmp => 255.
Index: libgcc/config/i386/shadow-stack-unwind.h
===================================================================
--- libgcc/config/i386/shadow-stack-unwind.h (revision 258760)
+++ libgcc/config/i386/shadow-stack-unwind.h (working copy)
@@ -42,7 +42,7 @@
_Unwind_Word tmp = (x); \
while (tmp > 255) \
{ \
- _inc_ssp (tmp); \
+ _inc_ssp (255); \
tmp -= 255; \
} \
_inc_ssp (tmp); \
Igor
