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libgo patch committed: mark go-context.S as no-exec-stack, split-stack

Message ID CAOyqgcWr-9Us6BJz4+QR0QsnHrLCAG+7ssMcG7AM8Edx1ELJ3g@mail.gmail.com
State New
Headers show
Series libgo patch committed: mark go-context.S as no-exec-stack, split-stack | expand

Commit Message

Ian Lance Taylor Oct. 2, 2019, 8:11 p.m. UTC 
This libgo patch marks go-context.S as no-executable-stack and
split-stack supported.

The .note.GNU-stack section tells the linker that this object does not
require an executable stack.

The .note.GNU-split-stack section tells the linker that functions in
this object can be called directly by split-stack functions, without
require a large stack.

The .note.GNU-no-split-stack section tells the linker that functions
in this object do not have a split-stack prologue.

Bootstrapped and ran Go testsuite on x86_64-pc-linux-gnu.  Committed
to mainline.

Ian
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Patch

Index: gcc/go/gofrontend/MERGE
===================================================================
--- gcc/go/gofrontend/MERGE	(revision 276382)
+++ gcc/go/gofrontend/MERGE	(working copy)
@@ -1,4 +1,4 @@ 
-07faafda5fbd66a710153814f30d93c91461e7cb
+a3aef6b6df932ea6c7094d074695bc0b033a3d17
 
 The first line of this file holds the git revision number of the last
 merge done from the gofrontend repository.
Index: libgo/runtime/go-context.S
===================================================================
--- libgo/runtime/go-context.S	(revision 276382)
+++ libgo/runtime/go-context.S	(working copy)
@@ -66,4 +66,8 @@  __go_makecontext:
 
 	ret
 
+	.section	.note.GNU-stack,"",@progbits
+	.section	.note.GNU-split-stack,"",@progbits
+	.section	.note.GNU-no-split-stack,"",@progbits
+
 #endif