From: Eric Botcazou <ebotcazou@adacore.com>
Date: Thu, 23 Apr 2026 07:37:18 +0000 (+0200)
Subject: i386: Bump STACK_CHECK_PROTECT for 64-bit Windows
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2715f0eaf6aedf42a299fca4bbc791a852e1a27e;p=thirdparty%2Fgcc.git

i386: Bump STACK_CHECK_PROTECT for 64-bit Windows

This is required for -fstack-check to be able to properly recover from a
stack overflow condition on (some configurations of) Windows Server 2025.

gcc/
	* config/i386/cygming.h (STACK_CHECK_PROTECT): Define.
---

diff --git a/gcc/config/i386/cygming.h b/gcc/config/i386/cygming.h
index 00d11063c72..6e5a301aee1 100644
--- a/gcc/config/i386/cygming.h
+++ b/gcc/config/i386/cygming.h
@@ -466,6 +466,8 @@ do {						\
 /* Static stack checking is supported by means of probes.  */
 #define STACK_CHECK_STATIC_BUILTIN 1
 
+#define STACK_CHECK_PROTECT (TARGET_64BIT ? 20 * 1024 : 12 * 1024)
+
 #ifndef HAVE_GAS_ALIGNED_COMM
 # define HAVE_GAS_ALIGNED_COMM 0
 #endif