From 3b1bd1fdcd241dd1e5b706b6937400d74ca43146 Mon Sep 17 00:00:00 2001
From: Stefan Schulze Frielinghaus <stefansf@gcc.gnu.org>
Date: Tue, 11 Mar 2025 09:28:06 +0100
Subject: s390: Deprecate ESA/390 support

Deprecate support for the ESA/390 architecture which will be eventually
removed, and encourage the usage of the z/Architecture instead.

Furthermore, default for -m31 to -mzarch whereas previously we defaulted
to -mesa.

gcc/ChangeLog:

	* config.gcc: Fail in case of option --with-mode=esa.
	* config/s390/s390.cc (s390_option_override_internal): Default
	to z/Architecture mode.
	* config/s390/s390.h (DRIVER_SELF_SPECS): Ditto.
	* config/s390/s390.opt: Emit a warning for option -mesa.
	* doc/invoke.texi: Document the change.

gcc/testsuite/ChangeLog:

	* gcc.target/s390/20020926-1.c: Deal with deprecation warning.
	* gcc.target/s390/dwarfregtable-1.c: Ditto.
	* gcc.target/s390/fp2int1.c: Ditto.
	* gcc.target/s390/pr102222.c: Ditto.
	* gcc.target/s390/pr106355-3.c: Ditto.
	* gcc.target/s390/pr61078.c: Ditto.
	* gcc.target/s390/target-attribute/tattr-m31-10.c: Ditto.
	* gcc.target/s390/target-attribute/tattr-m31-12.c: Ditto.
	* gcc.target/s390/target-attribute/tattr-m31-14.c: Ditto.
	* gcc.target/s390/target-attribute/tattr-m31-18.c: Ditto.
	* gcc.target/s390/target-attribute/tattr-m31-2.c: Ditto.
	* gcc.target/s390/target-attribute/tattr-m31-20.c: Ditto.
	* gcc.target/s390/target-attribute/tattr-m31-22.c: Ditto.
	* gcc.target/s390/target-attribute/tattr-m31-24.c: Ditto.
	* gcc.target/s390/target-attribute/tattr-m31-26.c: Ditto.
	* gcc.target/s390/target-attribute/tattr-m31-28.c: Ditto.
	* gcc.target/s390/target-attribute/tattr-m31-30.c: Ditto.
	* gcc.target/s390/target-attribute/tattr-m31-32.c: Ditto.
	* gcc.target/s390/target-attribute/tattr-m31-4.c: Ditto.
	* gcc.target/s390/target-attribute/tattr-m31-6.c: Ditto.
	* gcc.target/s390/target-attribute/tattr-m31-8.c: Ditto.
---
 gcc/config.gcc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'gcc/config.gcc')

diff --git a/gcc/config.gcc b/gcc/config.gcc
index a518e97..c4816e2 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -5768,9 +5768,13 @@ case "${target}" in
 		done
 
 		case ${with_mode} in
-		"" | esa | zarch)
+		"" | zarch)
 			# OK
 			;;
+		esa)
+			echo "Support for ESA/390 is deprecated; use z/Architecture instead." 1>&2
+			exit 1
+			;;
 		*)
 			echo "Unknown architecture mode used in --with-mode=$with_mode." 1>&2
 			exit 1
-- 
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