From 3e77efc7204407c5c8882bec42fdcaa88ef40a9b Mon Sep 17 00:00:00 2001
From: Srinivas Pokala <Pokala.Srinivas@ibm.com>
Date: Wed, 14 Dec 2022 06:31:50 +0100
Subject: cmd/internal/obj/s390x, runtime: fix breakpoint in s390x

Currently runtime.Breakpoint generates SIGSEGV in s390x.
The solution to this is add new asm instruction BRRK of
type FORMAT_E for the breakpoint exception.

Fixes #52103

Change-Id: I8358a56e428849a5d28d5ade141e1d7310bee084
Reviewed-on: https://go-review.googlesource.com/c/go/+/457456
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
---
 src/cmd/asm/internal/asm/testdata/s390x.s | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/cmd/asm')

diff --git a/src/cmd/asm/internal/asm/testdata/s390x.s b/src/cmd/asm/internal/asm/testdata/s390x.s
index 7c5d26be33..78ccb96fc1 100644
--- a/src/cmd/asm/internal/asm/testdata/s390x.s
+++ b/src/cmd/asm/internal/asm/testdata/s390x.s
@@ -410,6 +410,7 @@ TEXT main·foo(SB),DUPOK|NOSPLIT,$16-0 // TEXT main.foo(SB), DUPOK|NOSPLIT, $16-
 	TCDB	F15, $4095             // edf00fff0011
 
 	UNDEF                          // 00000000
+	BRRK			       // 0001
 	NOPH                           // 0700
 
 	SYNC                           // 07e0
-- 
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