freertos: release the generic version source code

freertos runs on the second core (small one) of the CPU

freertos/Test/CBMC/proofs/Queue/QueueGiveMutexRecursive/Makefile.json

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+#
+# FreeRTOS memory safety proofs with CBMC.
+# Copyright (C) 2019 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person
+# obtaining a copy of this software and associated documentation
+# files (the "Software"), to deal in the Software without
+# restriction, including without limitation the rights to use, copy,
+# modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+# http://aws.amazon.com/freertos
+# http://www.FreeRTOS.org
+#
+
+{
+  "ENTRY": "QueueGiveMutexRecursive",
+  "CBMCFLAGS": [
+    "--unwind 1",
+    "--signed-overflow-check",
+    "--pointer-overflow-check",
+    "--unsigned-overflow-check"
+  ],
+  "OBJS": [
+    "$(ENTRY)_harness.goto",
+    "$(FREERTOS)/Source/queue.goto",
+    "$(FREERTOS)/Source/list.goto"
+  ],
+  "DEF": [
+    "configUSE_TRACE_FACILITY=0",
+    "configGENERATE_RUN_TIME_STATS=0",
+    "configUSE_RECURSIVE_MUTEXES=1"
+  ],
+  "INC": [
+    "."
+  ],
+  "GENERATE_HEADER": [
+    "queue_datastructure.h"
+  ]
+}
+

freertos/Test/CBMC/proofs/Queue/QueueGiveMutexRecursive/QueueGiveMutexRecursive_harness.c

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+/*
+ * FreeRTOS memory safety proofs with CBMC.
+ * Copyright (C) 2019 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * http://aws.amazon.com/freertos
+ * http://www.FreeRTOS.org
+ */
+
+#include "FreeRTOS.h"
+#include "queue.h"
+#include "queue_datastructure.h"
+
+#include "cbmc.h"
+
+void harness() {
+  uint8_t ucQueueType;
+  QueueHandle_t xMutex =
+      xQueueCreateMutex( ucQueueType);
+  if (xMutex) {
+    xMutex->uxQueueType = ucQueueType;
+    UBaseType_t uxCounter;
+    /* This assumption is explained in the queue.c file inside the method body
+       xQueueGiveMutexRecursive and guards against an underflow error. */
+    __CPROVER_assume(uxCounter > 0);
+    xMutex->u.xSemaphore.uxRecursiveCallCount = uxCounter;
+    xQueueGiveMutexRecursive(xMutex);
+  }
+}

freertos/Test/CBMC/proofs/Queue/QueueGiveMutexRecursive/README.md

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+Assuming that the xMutex parameter is initialized to a valid pointer and
+abstracting concurrency and task pool related functions, this harness
+proves the memory safety of QueueGiveMutexRecursive.
+
+This proof is a work-in-progress.  Proof assumptions are described in
+the harness.  The proof also assumes the following functions are
+memory safe and have no side effects relevant to the memory safety of
+this function:
+
+* vPortEnterCritical
+* vPortExitCritical
+* vPortGenerateSimulatedInterrupt
+* xTaskGetCurrentTaskHandle
+* xTaskGetSchedulerState
+* xTaskPriorityDisinherit
+* xTaskRemoveFromEventList