Add a multilib with workarounds for Cortex-A53 errata.
gcc/ChangeLog:
* config.gcc (aarch64-*-rtems*): Add target makefile fragment
t-aarch64-rtems.
* config/aarch64/t-aarch64-rtems: New file.
---
gcc/config.gcc | 1 +
gcc/config/aarch64/t-aarch64-rtems | 42 ++++++++++++++++++++++++++++++
2 files changed, 43 insertions(+)
create mode 100644 gcc/config/aarch64/t-aarch64-rtems
diff --git a/gcc/config.gcc b/gcc/config.gcc
index 648b3dc2110..c3b73d05eb7 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -1139,6 +1139,7 @@ aarch64*-*-elf | aarch64*-*-fuchsia* | aarch64*-*-rtems*)
;;
aarch64-*-rtems*)
tm_file="${tm_file} aarch64/rtems.h rtems.h"
+ tmake_file="${tmake_file} aarch64/t-aarch64-rtems"
;;
esac
case $target in
diff --git a/gcc/config/aarch64/t-aarch64-rtems
b/gcc/config/aarch64/t-aarch64-rtems
new file mode 100644
index 00000000000..11f8c380222
--- /dev/null
+++ b/gcc/config/aarch64/t-aarch64-rtems
@@ -0,0 +1,42 @@
+# Machine description for AArch64 architecture.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+#
+# This file is part of GCC.
+#
+# GCC is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GCC is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GCC; see the file COPYING3. If not see
+# <http://www.gnu.org/licenses/>.
+
+MULTILIB_OPTIONS =
+MULTILIB_DIRNAMES =
+
+MULTILIB_OPTIONS += mabi=ilp32
+MULTILIB_DIRNAMES += ilp32
+
+MULTILIB_OPTIONS += mno-outline-atomics
+MULTILIB_DIRNAMES += nooa
+
+MULTILIB_OPTIONS += mcpu=cortex-a53
+MULTILIB_DIRNAMES += a53
+
+MULTILIB_OPTIONS += mfix-cortex-a53-835769
+MULTILIB_DIRNAMES += fix835769
+
+MULTILIB_OPTIONS += mfix-cortex-a53-843419
+MULTILIB_DIRNAMES += fix843419
+
+MULTILIB_REQUIRED =
+
+MULTILIB_REQUIRED += mabi=ilp32
+MULTILIB_REQUIRED +=
mabi=ilp32/mno-outline-atomics/mcpu=cortex-a53/mfix-cortex-a53-835769/mfix-cortex-a53-843419
+MULTILIB_REQUIRED +=
mno-outline-atomics/mcpu=cortex-a53/mfix-cortex-a53-835769/mfix-cortex-a53-843419
--
2.35.3
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