[修改] 增加freeRTOS

1. 版本FreeRTOSv202212.01，命名为kernel；

kernel/FreeRTOS-Plus/Source/FreeRTOS-Plus-TCP/test/cbmc/proofs/CheckOptionsOuter/CheckOptionsOuter_harness.c

@@ -0,0 +1,100 @@
+/* Standard includes. */
+#include <stdint.h>
+#include <stdio.h>
+
+/* FreeRTOS includes. */
+#include "FreeRTOS.h"
+#include "task.h"
+#include "queue.h"
+#include "semphr.h"
+
+/* FreeRTOS+TCP includes. */
+#include "FreeRTOS_IP.h"
+#include "FreeRTOS_Sockets.h"
+#include "FreeRTOS_IP_Private.h"
+#include "FreeRTOS_UDP_IP.h"
+#include "FreeRTOS_DHCP.h"
+#include "NetworkInterface.h"
+#include "NetworkBufferManagement.h"
+#include "FreeRTOS_ARP.h"
+
+#include "cbmc.h"
+
+/****************************************************************
+* Signature of the function under test
+****************************************************************/
+
+int32_t __CPROVER_file_local_FreeRTOS_TCP_Reception_c_prvSingleStepTCPHeaderOptions( const uint8_t * const pucPtr,
+                                                                                     size_t uxTotalLength,
+                                                                                     FreeRTOS_Socket_t * const pxSocket,
+                                                                                     BaseType_t xHasSYNFlag );
+
+/****************************************************************
+* Declare the buffer size external to the harness so it can be
+* accessed by the preconditions of prvReadSackOption, and give the
+* buffer size an unconstrained value in the harness itself.
+****************************************************************/
+
+size_t buffer_size;
+
+/****************************************************************
+* Function contract proved correct by CheckOptionsInner
+****************************************************************/
+
+void __CPROVER_file_local_FreeRTOS_TCP_Reception_c_prvReadSackOption( const uint8_t * const pucPtr,
+                                                                      size_t uxIndex,
+                                                                      FreeRTOS_Socket_t * const pxSocket )
+{
+    /* Preconditions */
+    __CPROVER_assert( buffer_size < CBMC_MAX_OBJECT_SIZE,
+                      "prvReadSackOption: buffer_size < CBMC_MAX_OBJECT_SIZE" );
+    __CPROVER_assert( uxIndex <= buffer_size,
+                      "prvReadSackOption: uxIndex <= buffer_size" );
+    __CPROVER_assert( uxIndex + 8 <= buffer_size,
+                      "prvReadSackOption: uxIndex + 8 <= buffer_size" );
+    __CPROVER_assert( pucPtr != NULL,
+                      "prvReadSackOption: pucPtr != NULL" );
+    __CPROVER_assert( pxSocket != NULL,
+                      "prvReadSackOption: pxSocket != NULL" );
+
+    /* No postconditions required */
+}
+
+/****************************************************************
+* Proof of prvSingleStepTCPHeaderOptions function contract
+****************************************************************/
+
+void harness()
+{
+    /* Give buffer_size an unconstrained value */
+    size_t buf_size;
+
+    buffer_size = buf_size;
+
+    uint8_t * pucPtr = malloc( buffer_size );
+    size_t uxTotalLength;
+    FreeRTOS_Socket_t * pxSocket = malloc( sizeof( FreeRTOS_Socket_t ) );
+    BaseType_t xHasSYNFlag;
+
+    /****************************************************************
+    * Specification and proof of CheckOptions outer loop
+    ****************************************************************/
+
+    /* CBMC model of pointers limits the size of the buffer */
+    __CPROVER_assume( buffer_size < CBMC_MAX_OBJECT_SIZE );
+
+    /* Preconditions */
+    __CPROVER_assume( 8 <= buffer_size ); /* ulFirst and ulLast */
+    __CPROVER_assume( pucPtr != NULL );
+    __CPROVER_assume( uxTotalLength <= buffer_size );
+    __CPROVER_assume( pxSocket != NULL );
+
+    int32_t index = __CPROVER_file_local_FreeRTOS_TCP_Reception_c_prvSingleStepTCPHeaderOptions( pucPtr,
+                                                                                                 uxTotalLength,
+                                                                                                 pxSocket,
+                                                                                                 xHasSYNFlag );
+
+    /* Postconditions */
+    __CPROVER_assert( ( ( index == -1 ) || ( index == 1 ) || ( index <= uxTotalLength ) ),
+                      "prvSingleStepTCPHeaderOptions: index <= uxTotalLength" );
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Plus-TCP/test/cbmc/proofs/CheckOptionsOuter/Makefile.json

@@ -0,0 +1,24 @@
+{
+  "ENTRY": "CheckOptionsOuter",
+  "CBMCFLAGS":
+  [
+      "--unwind 1",
+      "--unwindset __CPROVER_file_local_FreeRTOS_TCP_Reception_c_prvSingleStepTCPHeaderOptions.2:32"
+  ],
+  "OPT":
+  [
+      "--export-file-local-symbols"
+  ],
+  "OBJS":
+  [
+    "$(ENTRY)_harness.goto",
+    "$(FREERTOS_PLUS_TCP)/source/FreeRTOS_TCP_Reception.goto",
+    "$(FREERTOS_PLUS_TCP)/source/FreeRTOS_TCP_WIN.goto",
+    "$(FREERTOS_PLUS_TCP)/source/FreeRTOS_Stream_Buffer.goto",
+    "$(FREERTOS_PLUS_TCP)/test/FreeRTOS-Kernel/tasks.goto",
+    "$(FREERTOS_PLUS_TCP)/test/FreeRTOS-Kernel/list.goto"
+  ],
+  "DEF":
+  [
+  ]
+}