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libgcc: increase required stack space for x86_64 -fsplit-stack
authorIan Lance Taylor <iant@golang.org>
Mon, 3 Aug 2020 22:59:45 +0000 (15:59 -0700)
committerIan Lance Taylor <iant@golang.org>
Mon, 3 Aug 2020 23:01:59 +0000 (16:01 -0700)
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.

libgcc/config/i386/morestack.S patch | blob | history

diff --git a/libgcc/config/i386/morestack.S b/libgcc/config/i386/morestack.S
index 519bbbc8c13829f2ad223917bf7e411244885ad0..1c31783c75499b0df23f402219bd042ea71856e8 100644 (file)
--- 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