From 7a08cec524254574013e1839507514bf30085201 Mon Sep 17 00:00:00 2001
From: Paul Selkirk <paul@psgd.org>
Date: Thu, 15 Oct 2020 13:40:39 -0400
Subject: Silence deprecated warnings in CMSIS code.

---
 projects/bootloader/bootloader.c | 21 ++++++++++++++++++---
 task.c                           | 20 +++++++++++++++++---
 2 files changed, 35 insertions(+), 6 deletions(-)

diff --git a/projects/bootloader/bootloader.c b/projects/bootloader/bootloader.c
index c62df12..6413597 100644
--- a/projects/bootloader/bootloader.c
+++ b/projects/bootloader/bootloader.c
@@ -5,6 +5,8 @@
  * or jump to previously installed firmware.
  *
  * Copyright (c) 2016, NORDUnet A/S All rights reserved.
+ * Copyright: 2020, The Commons Conservancy Cryptech Project
+ * SPDX-License-Identifier: BSD-3-Clause
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -16,9 +18,9 @@
  *   notice, this list of conditions and the following disclaimer in the
  *   documentation and/or other materials provided with the distribution.
  *
- * - Neither the name of the NORDUnet nor the names of its contributors may
- *   be used to endorse or promote products derived from this software
- *   without specific prior written permission.
+ * - Neither the name of the copyright holder nor the names of its
+ *   contributors may be used to endorse or promote products derived from
+ *   this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
@@ -32,6 +34,19 @@
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
+
+/* Ignore "deprecated" warnings in ARM-supplied CMSIS code:
+ *
+ * libraries/mbed/targets/cmsis/core_cm4.h:85:28: warning: listing the stack pointer register 'sp' in a clobber list is deprecated
+ * libraries/mbed/targets/cmsis/core_cm4.h:85:28: note: the value of the stack pointer after an 'asm' statement must be the same as it was before the statement
+ *
+ * This comes from our use of __set_MSP to set the stack pointer when
+ * switching tasks. If GCC ever decides to actually forbid this, then
+ * we'll have to figure out something else, possibly a native assembly
+ * function.
+ */
+#pragma GCC diagnostic ignored "-Wdeprecated"
+
 #include "stm-init.h"
 #include "stm-led.h"
 #include "stm-uart.h"
diff --git a/task.c b/task.c
index 34daa24..adb845b 100644
--- a/task.c
+++ b/task.c
@@ -4,6 +4,8 @@
  * Simple cooperative tasking system.
  *
  * Copyright (c) 2017, NORDUnet A/S All rights reserved.
+ * Copyright: 2020, The Commons Conservancy Cryptech Project
+ * SPDX-License-Identifier: BSD-3-Clause
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -15,9 +17,9 @@
  *   notice, this list of conditions and the following disclaimer in the
  *   documentation and/or other materials provided with the distribution.
  *
- * - Neither the name of the NORDUnet nor the names of its contributors may
- *   be used to endorse or promote products derived from this software
- *   without specific prior written permission.
+ * - Neither the name of the copyright holder nor the names of its
+ *   contributors may be used to endorse or promote products derived from
+ *   this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
@@ -39,6 +41,18 @@
  * tasks deleted.
  */
 
+/* Ignore "deprecated" warnings in ARM-supplied CMSIS code:
+ *
+ * libraries/mbed/targets/cmsis/core_cm4.h:85:28: warning: listing the stack pointer register 'sp' in a clobber list is deprecated
+ * libraries/mbed/targets/cmsis/core_cm4.h:85:28: note: the value of the stack pointer after an 'asm' statement must be the same as it was before the statement
+ *
+ * This comes from our use of __set_MSP to set the stack pointer when
+ * switching tasks. If GCC ever decides to actually forbid this, then
+ * we'll have to figure out something else, possibly a native assembly
+ * function.
+ */
+#pragma GCC diagnostic ignored "-Wdeprecated"
+
 #include "stm-init.h"
 #include "task.h"
 
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