From: Ian Lance Taylor <iant@golang.org>
Date: Mon, 3 Aug 2020 22:59:45 +0000 (-0700)
Subject: libgcc: increase required stack space for x86_64 -fsplit-stack
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=85860abd5521fe9d5cdccda67da1d34cb55c92d1;p=thirdparty%2Fgcc.git

libgcc: increase required stack space for x86_64 -fsplit-stack

This accomodates increased space required by use of the xsavec
instruction in the dynamic linker trampoline.

libgcc/ChangeLog:

	* config/i386/morestack.S (BACKOFF) [x86_64]: Add 2048 bytes.
---

diff --git a/libgcc/config/i386/morestack.S b/libgcc/config/i386/morestack.S
index 519bbbc8c138..1c31783c7549 100644
--- a/libgcc/config/i386/morestack.S
+++ b/libgcc/config/i386/morestack.S
@@ -79,7 +79,7 @@
 #ifndef __x86_64__
 #define BACKOFF (1024)
 #else
-#define BACKOFF (1536)
+#define BACKOFF (3584)
 #endif