mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-12-11 14:15:12 -05:00
Added flag to skip very expensive part of the proof for prvInitialiseNewTask.
When the symbol `VERIFAST_SKIP_BITVECTOR_PROOF__STACK_ALIGNMENT` is defined in the preprocessor script, we skip the verification of the stack alignment. This part of the proof involves bit vector arithmetic and hence takes long to verify.
This commit is contained in:
Tobias Reinhard
parent
01c19a2099
commit
2404a2f253
4 changed files with 261 additions and 195 deletions
103
tasks.c
103
tasks.c
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@ -1509,43 +1509,90 @@ static void prvInitialiseNewTask( TaskFunction_t pxTaskCode,
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pxTopOfStack = &( pxNewTCB->pxStack[ ulStackDepth - ( uint32_t ) 1 ] );
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//@ StackType_t* gOldTop = pxTopOfStack;
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//@ char* gcStack = (char*) pxNewTCB->pxStack;
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// Axiomatize that pointers on RP2040 are 32bit
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//@ ptr_range<uint32_t>(pxTopOfStack);
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/* Convert top and mask to VeriFast bitvectors and establish
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* relation to C variables.
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* Note that on RP2040:
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* - `portPOINTER_SIZE_TYPE` == `uint32_t`
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* - `portBYTE_ALIGNMENT_MASK` == `0x0007`
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/* Set the following flag to skip and expensive part of this proof:
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* `VERIFAST_SKIP_BITVECTOR_PROOF__STACK_ALIGNMENT`
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*
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* For VeriFast bit vector proofs are very computation intensive.
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* Hence, reasoning about the stack alignment below takes relatively
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* long.
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*/
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//@ uint32_t gMask = 0x0007;
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//@ Z gzTop = Z_of_uint32((int) pxTopOfStack);
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//@ Z gzMask = Z_of_uint32((int) gMask);
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//@ bitnot_def(gMask, gzMask);
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//@ bitand_def((int) pxTopOfStack, gzTop, ~gMask, Z_not(gzMask));
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#ifndef VERIFAST_SKIP_BITVECTOR_PROOF__STACK_ALIGNMENT
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// Axiomatize that pointers on RP2040 are 32bit
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//@ ptr_range<uint32_t>(pxTopOfStack);
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/* Convert top and mask to VeriFast bitvectors and establish
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* relation to C variables.
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* Note that on RP2040:
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* - `portPOINTER_SIZE_TYPE` == `uint32_t`
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* - `portBYTE_ALIGNMENT_MASK` == `0x0007`
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*/
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//@ uint32_t gMask = 0x0007;
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//@ Z gzTop = Z_of_uint32((int) pxTopOfStack);
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//@ Z gzMask = Z_of_uint32((int) gMask);
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//@ bitnot_def(gMask, gzMask);
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//@ bitand_def((int) pxTopOfStack, gzTop, ~gMask, Z_not(gzMask));
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#else
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/* Axiomatise that no over- or underflow occurs.
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* We further assume that `portPOINTER_SIZE_TYPE` evaluates to
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* `uint32_t`.
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*/
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//@ ptr_range<void>(pxTopOfStack);
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/*@ assume( ( StackType_t * ) ( ( ( uint32_t ) pxTopOfStack )
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& ( ~( ( uint32_t ) ( 0x0007 ) ) ) )
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> 0 );
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@*/
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/*@ assume( ( StackType_t * ) ( ( ( uint32_t ) pxTopOfStack )
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& ( ~( ( uint32_t ) ( 0x0007 ) ) ) )
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<= (StackType_t*) UINTPTR_MAX );
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@*/
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#endif /* VERIFAST_SKIP_BITVECTOR_PROOF__STACK_ALIGNMENT */
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pxTopOfStack = ( StackType_t * ) ( ( ( portPOINTER_SIZE_TYPE ) pxTopOfStack ) & ( ~( ( portPOINTER_SIZE_TYPE ) portBYTE_ALIGNMENT_MASK ) ) ); /*lint !e923 !e9033 !e9078 MISRA exception. Avoiding casts between pointers and integers is not practical. Size differences accounted for using portPOINTER_SIZE_TYPE type. Checked by assert(). */
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//@ uint32_t gUnalignedBytes = (char*) gOldTop - (char*) pxTopOfStack;
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#ifndef VERIFAST_SKIP_BITVECTOR_PROOF__STACK_ALIGNMENT
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//@ uint32_t gUnalignedBytes = (char*) gOldTop - (char*) pxTopOfStack;
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// The following alignment assertions hold but take very long to verify.
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///@ assert( pxTopOfStack <= gOldTop );
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///@ assert( gOldTop - 7 <= pxTopOfStack );
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// The following alignment assertions hold but take very long to verify.
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///@ assert( pxTopOfStack <= gOldTop );
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///@ assert( gOldTop - 7 <= pxTopOfStack );
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// Same as above but for aligned top pointer:
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//@ Z gzAlignedTop = Z_of_uint32((int) pxTopOfStack);
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//@ bitand_def((int) pxTopOfStack, gzAlignedTop, gMask, gzMask);
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#else
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/* Axiomatize that alignmet check succeeds.
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* We further assume that `portPOINTER_SIZE_TYPE` evaluates to
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* `uint32_t`*/
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//@ ptr_range<void>(pxTopOfStack);
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/*@ assume( ( ( uint32_t ) pxTopOfStack & ( uint32_t ) ( 0x0007 ) ) == 0UL );
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@*/
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#endif /* VERIFAST_SKIP_BITVECTOR_PROOF__STACK_ALIGNMENT */
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/* Check the alignment of the calculated top of stack is correct. */
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// Same as above but for aligned top pointer:
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//@ Z gzAlignedTop = Z_of_uint32((int) pxTopOfStack);
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//@ bitand_def((int) pxTopOfStack, gzAlignedTop, gMask, gzMask);
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configASSERT( ( ( ( portPOINTER_SIZE_TYPE ) pxTopOfStack & ( portPOINTER_SIZE_TYPE ) portBYTE_ALIGNMENT_MASK ) == 0UL ) );
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/*@
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if( pxTopOfStack < gOldTop )
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{
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chars_split_at(gcStack, (char*) pxTopOfStack + sizeof(StackType_t));
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}
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@*/
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#ifndef VERIFAST_SKIP_BITVECTOR_PROOF__STACK_ALIGNMENT
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/* Remark: Moving this proof step in front of the above
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* assertion increases proof checking time by a lot.
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*/
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/*@
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if( pxTopOfStack < gOldTop )
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{
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chars_split_at(gcStack, (char*) pxTopOfStack + sizeof(StackType_t));
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}
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@*/
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#else
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/* Axiomatize that bit vector operations did not change stack
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* pointer.
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*/
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/* TODO: Can we simplify the axiomatizations here and above
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* by assuming that the top pointer was already aligned?
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*/
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//@ assume( pxTopOfStack == gOldTop );
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//@ int gUnalignedBytes = 0;
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#endif /* VERIFAST_SKIP_BITVECTOR_PROOF__STACK_ALIGNMENT */
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//@ assert( chars(gcStack, ?gFreeBytes, _) );
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//@ char* gUnalignedPtr = (char*) pxNewTCB->pxStack + gFreeBytes;
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//@ close unalignedRestOfStack_p(gUnalignedPtr, gUnalignedBytes);
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@ -32,6 +32,9 @@ PP_OUT_DIR="$VF_PROOF_BASE_DIR/preprocessed_files"
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PP_TASK_C="$PP_OUT_DIR/tasks__pp.c"
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# Flags to SKIP expensive proofs:
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# - VERIFAST_SKIP_BITVECTOR_PROOF__STACK_ALIGNMENT
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pwd
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mkdir $LOG_PP_OUT_DIR
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@ -44,6 +47,7 @@ mkdir $LOG_PP_OUT_DIR
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echo start preprocessor
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clang -E -C -DFREE_RTOS_KERNEL_SMP=1 -DLIB_FREERTOS_KERNEL=1 -DLIB_PICO_BIT_OPS=1 -DLIB_PICO_BIT_OPS_PICO=1 -DLIB_PICO_DIVIDER=1 -DLIB_PICO_DIVIDER_HARDWARE=1 -DLIB_PICO_DOUBLE=1 -DLIB_PICO_DOUBLE_PICO=1 -DLIB_PICO_FLOAT=1 -DLIB_PICO_FLOAT_PICO=1 -DLIB_PICO_INT64_OPS=1 -DLIB_PICO_INT64_OPS_PICO=1 -DLIB_PICO_MALLOC=1 -DLIB_PICO_MEM_OPS=1 -DLIB_PICO_MEM_OPS_PICO=1 -DLIB_PICO_MULTICORE=1 -DLIB_PICO_PLATFORM=1 -DLIB_PICO_PRINTF=1 -DLIB_PICO_PRINTF_PICO=1 -DLIB_PICO_RUNTIME=1 -DLIB_PICO_STANDARD_LINK=1 -DLIB_PICO_STDIO=1 -DLIB_PICO_STDIO_UART=1 -DLIB_PICO_STDLIB=1 -DLIB_PICO_SYNC=1 -DLIB_PICO_SYNC_CORE=1 -DLIB_PICO_SYNC_CRITICAL_SECTION=1 -DLIB_PICO_SYNC_MUTEX=1 -DLIB_PICO_SYNC_SEM=1 -DLIB_PICO_TIME=1 -DLIB_PICO_UTIL=1 -DPICO_BOARD=\"pico\" -DPICO_BUILD=1 -DPICO_CMAKE_BUILD_TYPE=\"Release\" -DPICO_COPY_TO_RAM=0 -DPICO_CXX_ENABLE_EXCEPTIONS=0 -DPICO_NO_FLASH=0 -DPICO_NO_HARDWARE=0 -DPICO_ON_DEVICE=1 -DPICO_STACK_SIZE=0x1000 -DPICO_TARGET_NAME=\"on_core_one\" -DPICO_USE_BLOCKED_RAM=0 -DmainRUN_FREE_RTOS_ON_CORE=1 \
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-DVERIFAST \
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-DVERIFAST_SKIP_BITVECTOR_PROOF__STACK_ALIGNMENT \
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-I"$VF_DIR/bin" \
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-I"$PROOF_SETUP_DIR" \
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-I"$PROOF_FILES_DIR" \
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@ -60,40 +60,40 @@ typedef intptr_t ptrdiff_t;
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typedef intptr_t ssize_t;
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// # 5 "/Users/reitobia/programs/verifast-21.04-83-gfae956f7/bin/malloc.h" 2
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/*@
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// In Standard C, freeing a null pointer is allowed and is a no-op.
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lemma_auto void malloc_block_null();
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requires emp;
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ensures malloc_block(0, 0);
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lemma void malloc_block_limits(void *array);
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requires [?f]malloc_block(array, ?size);
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ensures [f]malloc_block(array, size) &*& (void *)0 <= array &*& 0 <= size &*& array + size <= (void *)UINTPTR_MAX;
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/*@
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// In Standard C, freeing a null pointer is allowed and is a no-op.
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lemma_auto void malloc_block_null();
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requires emp;
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ensures malloc_block(0, 0);
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lemma void malloc_block_limits(void *array);
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requires [?f]malloc_block(array, ?size);
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ensures [f]malloc_block(array, size) &*& (void *)0 <= array &*& 0 <= size &*& array + size <= (void *)UINTPTR_MAX;
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@*/
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void *malloc(size_t size);
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//@ requires true;
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/*@
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ensures
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result == 0 ?
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emp
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:
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chars_(result, size, _) &*& malloc_block(result, size) &*&
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(char *)0 < result && result + size <= (char *)UINTPTR_MAX; // one-past-end does not overflow
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/*@
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ensures
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result == 0 ?
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emp
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:
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chars_(result, size, _) &*& malloc_block(result, size) &*&
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(char *)0 < result && result + size <= (char *)UINTPTR_MAX; // one-past-end does not overflow
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@*/
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//@ terminates;
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void *calloc(size_t nmemb, size_t size);
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//@ requires true;
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/*@
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ensures
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result == 0 ?
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emp
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:
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chars(result, nmemb * size, ?cs) &*& malloc_block(result, nmemb * size) &*& all_eq(cs, 0) == true &*&
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(char *)0 < result && result + nmemb * size <= (char *)UINTPTR_MAX; // one-past-end does not overflow
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/*@
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ensures
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result == 0 ?
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emp
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:
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chars(result, nmemb * size, ?cs) &*& malloc_block(result, nmemb * size) &*& all_eq(cs, 0) == true &*&
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(char *)0 < result && result + nmemb * size <= (char *)UINTPTR_MAX; // one-past-end does not overflow
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@*/
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//@ terminates;
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@ -104,16 +104,16 @@ void free(void *array);
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void *realloc(void *array, size_t newSize);
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//@ requires malloc_block(array, ?size) &*& chars(array, size, ?cs);
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/*@
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ensures
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result == 0 ?
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malloc_block(array, size) &*& chars(array, size, cs)
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:
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malloc_block(result, newSize) &*&
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newSize <= size ?
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chars(result, _, take(newSize, cs))
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:
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chars(result, _, cs) &*& chars(result + size, newSize - size, _);
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/*@
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ensures
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result == 0 ?
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malloc_block(array, size) &*& chars(array, size, cs)
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:
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malloc_block(result, newSize) &*&
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newSize <= size ?
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chars(result, _, take(newSize, cs))
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:
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chars(result, _, cs) &*& chars(result + size, newSize - size, _);
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@*/
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//@ terminates;
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// # 6 "/Users/reitobia/programs/verifast-21.04-83-gfae956f7/bin/stdlib.h" 2
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@ -158,21 +158,21 @@ void memcpy(void *array, void *array0, size_t count);
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//@ ensures chars(array, count, cs0) &*& [f]chars(array0, count, cs0);
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void memmove(void *dest, void *src, size_t count);
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/*@
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requires
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chars(src, count, ?cs) &*&
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dest <= src ?
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chars(dest, src - dest, _)
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:
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chars(src + count, dest - src, _);
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/*@
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requires
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chars(src, count, ?cs) &*&
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dest <= src ?
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chars(dest, src - dest, _)
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:
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chars(src + count, dest - src, _);
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@*/
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/*@
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ensures
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chars(dest, count, cs) &*&
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dest <= src ?
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chars(dest + count, src - dest, _)
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:
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chars(src, dest - src, _);
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/*@
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ensures
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chars(dest, count, cs) &*&
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dest <= src ?
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chars(dest + count, src - dest, _)
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:
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chars(src, dest - src, _);
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@*/
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size_t strlen(char *string);
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@ -193,15 +193,15 @@ char *memchr(char *array, char c, size_t count);
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char* strchr(char *str, char c);
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//@ requires [?f]string(str, ?cs);
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/*@ ensures
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[f]string(str, cs) &*&
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c == 0 ?
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result == str + length(cs)
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:
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result == 0 ?
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mem(c, cs) == false
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:
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mem(c, cs) == true &*& result == str + index_of(c, cs);
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/*@ ensures
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[f]string(str, cs) &*&
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c == 0 ?
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result == str + length(cs)
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:
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result == 0 ?
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mem(c, cs) == false
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:
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mem(c, cs) == true &*& result == str + index_of(c, cs);
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@*/
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void* memset(void *array, char value, size_t size);
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@ -548,33 +548,33 @@ typedef void (* TaskFunction_t)( void * );
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* must be set in the compiler's include path. */
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// # 1 "/Users/reitobia/repos2/FreeRTOS-Kernel/portable/ThirdParty/GCC/RP2040/include/portmacro.h" 1
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/*
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* FreeRTOS SMP Kernel V202110.00
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* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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* Copyright (c) 2021 Raspberry Pi (Trading) Ltd.
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*
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* SPDX-License-Identifier: MIT AND BSD-3-Clause
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*
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* 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
|
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* 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,
|
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
|
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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/*
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* FreeRTOS SMP Kernel V202110.00
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* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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* Copyright (c) 2021 Raspberry Pi (Trading) Ltd.
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*
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* SPDX-License-Identifier: MIT AND BSD-3-Clause
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*
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||||
* 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:
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||||
*
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||||
* The above copyright notice and this permission notice shall be included in all
|
||||
* copies or substantial portions of the Software.
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*
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||||
* 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
|
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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*/
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// # 37 "/Users/reitobia/repos2/FreeRTOS-Kernel/portable/ThirdParty/GCC/RP2040/include/portmacro.h"
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// # 1 "/Users/reitobia/repos2/FreeRTOS-Kernel/verification/verifast/sdks/pico-sdk/src/common/pico_base/include/pico.h" 1
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@ -4283,14 +4283,14 @@ int spin_lock_claim_unused(bool required);
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bool spin_lock_is_claimed(uint lock_num);
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// # 39 "/Users/reitobia/repos2/FreeRTOS-Kernel/portable/ThirdParty/GCC/RP2040/include/portmacro.h" 2
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/*-----------------------------------------------------------
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* Port specific definitions.
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*
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* The settings in this file configure FreeRTOS correctly for the
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||||
* given hardware and compiler.
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*
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* These settings should not be altered.
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*-----------------------------------------------------------
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/*-----------------------------------------------------------
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* Port specific definitions.
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*
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* The settings in this file configure FreeRTOS correctly for the
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* given hardware and compiler.
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*
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* These settings should not be altered.
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*-----------------------------------------------------------
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*/
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|
||||
/* Type definitions. */
|
||||
|
|
@ -4306,7 +4306,7 @@ bool spin_lock_is_claimed(uint lock_num);
|
|||
typedef uint32_t TickType_t;
|
||||
|
||||
|
||||
/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
|
||||
/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
|
||||
* not need to be guarded with a critical section. */
|
||||
|
||||
|
||||
|
|
@ -4317,13 +4317,13 @@ bool spin_lock_is_claimed(uint lock_num);
|
|||
|
||||
|
||||
|
||||
/* Reason for rewrite: VeriFast does not support the attriibute `used`.
|
||||
/* Reason for rewrite: VeriFast does not support the attriibute `used`.
|
||||
*/
|
||||
|
||||
|
||||
|
||||
|
||||
/* We have to use PICO_DIVIDER_DISABLE_INTERRUPTS as the source of truth rathern than our config,
|
||||
/* We have to use PICO_DIVIDER_DISABLE_INTERRUPTS as the source of truth rathern than our config,
|
||||
* as our FreeRTOSConfig.h header cannot be included by ASM code - which is what this affects in the SDK */
|
||||
|
||||
|
||||
|
|
@ -4388,11 +4388,11 @@ bool spin_lock_is_claimed(uint lock_num);
|
|||
|
||||
|
||||
|
||||
/* Note this is a single method with uxAcquire parameter since we have
|
||||
* static vars, the method is always called with a compile time constant for
|
||||
/* Note this is a single method with uxAcquire parameter since we have
|
||||
* static vars, the method is always called with a compile time constant for
|
||||
* uxAcquire, and the compiler should dothe right thing! */
|
||||
|
||||
/* Reason for rewrite: VeriFast does not support local static variables.
|
||||
/* Reason for rewrite: VeriFast does not support local static variables.
|
||||
*/
|
||||
// # 226 "/Users/reitobia/repos2/FreeRTOS-Kernel/portable/ThirdParty/GCC/RP2040/include/portmacro.h"
|
||||
/*-----------------------------------------------------------*/
|
||||
|
|
@ -11343,49 +11343,59 @@ static void prvInitialiseNewTask( TaskFunction_t pxTaskCode,
|
|||
//@ StackType_t* gOldTop = pxTopOfStack;
|
||||
//@ char* gcStack = (char*) pxNewTCB->pxStack;
|
||||
|
||||
// Axiomatize that pointers on RP2040 are 32bit
|
||||
//@ ptr_range<uint32_t>(pxTopOfStack);
|
||||
|
||||
/* Convert top and mask to VeriFast bitvectors and establish
|
||||
* relation to C variables.
|
||||
* Note that on RP2040:
|
||||
* - `portPOINTER_SIZE_TYPE` == `uint32_t`
|
||||
* - `portBYTE_ALIGNMENT_MASK` == `0x0007`
|
||||
/* Set the following flag to skip and expensive part of this proof:
|
||||
* `VERIFAST_SKIP_BITVECTOR_PROOF__STACK_ALIGNMENT`
|
||||
*
|
||||
* For VeriFast bit vector proofs are very computation intensive.
|
||||
* Hence, reasoning about the stack alignment below takes relatively
|
||||
* long.
|
||||
*/
|
||||
//@ uint32_t gMask = 0x0007;
|
||||
//@ Z gzTop = Z_of_uint32((int) pxTopOfStack);
|
||||
//@ Z gzMask = Z_of_uint32((int) gMask);
|
||||
//@ bitnot_def(gMask, gzMask);
|
||||
//@ bitand_def((int) pxTopOfStack, gzTop, ~gMask, Z_not(gzMask));
|
||||
// # 1536 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/* Axiomatise that no over- or underflow occurs.
|
||||
* We further assume that `portPOINTER_SIZE_TYPE` evaluates to
|
||||
* `uint32_t`.
|
||||
*/
|
||||
//@ ptr_range<void>(pxTopOfStack);
|
||||
/*@ assume( ( StackType_t * ) ( ( ( uint32_t ) pxTopOfStack )
|
||||
& ( ~( ( uint32_t ) ( 0x0007 ) ) ) )
|
||||
> 0 );
|
||||
@*/
|
||||
/*@ assume( ( StackType_t * ) ( ( ( uint32_t ) pxTopOfStack )
|
||||
& ( ~( ( uint32_t ) ( 0x0007 ) ) ) )
|
||||
<= (StackType_t*) UINTPTR_MAX );
|
||||
@*/
|
||||
|
||||
|
||||
pxTopOfStack = ( StackType_t * ) ( ( ( uint32_t ) pxTopOfStack ) & ( ~( ( uint32_t ) ( 0x0007 ) ) ) ); /*lint !e923 !e9033 !e9078 MISRA exception. Avoiding casts between pointers and integers is not practical. Size differences accounted for using portPOINTER_SIZE_TYPE type. Checked by assert(). */
|
||||
//@ uint32_t gUnalignedBytes = (char*) gOldTop - (char*) pxTopOfStack;
|
||||
// # 1564 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/* Axiomatize that alignmet check succeeds.
|
||||
* We further assume that `portPOINTER_SIZE_TYPE` evaluates to
|
||||
* `uint32_t`*/
|
||||
//@ ptr_range<void>(pxTopOfStack);
|
||||
/*@ assume( ( ( uint32_t ) pxTopOfStack & ( uint32_t ) ( 0x0007 ) ) == 0UL );
|
||||
@*/
|
||||
|
||||
// The following alignment assertions hold but take very long to verify.
|
||||
///@ assert( pxTopOfStack <= gOldTop );
|
||||
///@ assert( gOldTop - 7 <= pxTopOfStack );
|
||||
|
||||
/* Check the alignment of the calculated top of stack is correct. */
|
||||
|
||||
// Same as above but for aligned top pointer:
|
||||
//@ Z gzAlignedTop = Z_of_uint32((int) pxTopOfStack);
|
||||
//@ bitand_def((int) pxTopOfStack, gzAlignedTop, gMask, gzMask);
|
||||
|
||||
assert(( ( ( uint32_t ) pxTopOfStack & ( uint32_t ) ( 0x0007 ) ) == 0UL ));
|
||||
// # 1586 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/* Axiomatize that bit vector operations did not change stack
|
||||
* pointer.
|
||||
*/
|
||||
/* TODO: Can we simplify the axiomatizations here and above
|
||||
* by assuming that the top pointer was already aligned?
|
||||
*/
|
||||
//@ assume( pxTopOfStack == gOldTop );
|
||||
//@ int gUnalignedBytes = 0;
|
||||
|
||||
|
||||
/*@
|
||||
if( pxTopOfStack < gOldTop )
|
||||
{
|
||||
chars_split_at(gcStack, (char*) pxTopOfStack + sizeof(StackType_t));
|
||||
}
|
||||
@*/
|
||||
//@ assert( chars(gcStack, ?gFreeBytes, _) );
|
||||
//@ char* gUnalignedPtr = (char*) pxNewTCB->pxStack + gFreeBytes;
|
||||
//@ close unalignedRestOfStack_p(gUnalignedPtr, gUnalignedBytes);
|
||||
//@ close stack_p_2(pxNewTCB->pxStack, ulStackDepth, pxTopOfStack, gFreeBytes, 0, gUnalignedBytes);
|
||||
// # 1562 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 1609 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
}
|
||||
// # 1576 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 1623 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/* Store the task name in the TCB. */
|
||||
if( pcName != 0 )
|
||||
{
|
||||
|
|
@ -11459,7 +11469,7 @@ static void prvInitialiseNewTask( TaskFunction_t pxTaskCode,
|
|||
{
|
||||
pxNewTCB->uxCriticalNesting = ( UBaseType_t ) 0U;
|
||||
}
|
||||
// # 1668 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 1715 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
{
|
||||
/* Avoid compiler warning about unreferenced parameter. */
|
||||
( void ) xRegions;
|
||||
|
|
@ -11487,7 +11497,7 @@ static void prvInitialiseNewTask( TaskFunction_t pxTaskCode,
|
|||
memset( ( void * ) &( pxNewTCB->ucNotifyState[ 0 ] ), 0x00, sizeof( pxNewTCB->ucNotifyState ) );
|
||||
//@ chars_to_uchars(pxNewTCB->ucNotifyState);
|
||||
}
|
||||
// # 1707 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 1754 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
{
|
||||
|
||||
/* Reason for rewrite: Assignment not type safe. */
|
||||
|
|
@ -11496,17 +11506,17 @@ static void prvInitialiseNewTask( TaskFunction_t pxTaskCode,
|
|||
|
||||
|
||||
}
|
||||
// # 1730 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 1777 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/* Initialize the TCB stack to look as if the task was already running,
|
||||
* but had been interrupted by the scheduler. The return address is set
|
||||
* to the start of the task function. Once the stack has been initialised
|
||||
* the top of stack variable is updated. */
|
||||
// # 1758 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 1805 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
{
|
||||
/* If the port has capability to detect stack overflow,
|
||||
* pass the stack end address to the stack initialization
|
||||
* function as well. */
|
||||
// # 1775 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 1822 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
{
|
||||
pxNewTCB->pxTopOfStack = pxPortInitialiseStack( pxTopOfStack, pxTaskCode, pvParameters );
|
||||
}
|
||||
|
|
@ -12216,13 +12226,13 @@ static void prvAddNewTaskToReadyList( TCB_t * pxNewTCB )
|
|||
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
// # 2518 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 2565 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*-----------------------------------------------------------*/
|
||||
// # 2541 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 2588 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*-----------------------------------------------------------*/
|
||||
// # 2559 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 2606 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*-----------------------------------------------------------*/
|
||||
// # 2587 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 2634 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
|
||||
|
|
@ -12589,7 +12599,7 @@ static BaseType_t prvCreateIdleTasks( void )
|
|||
{
|
||||
;
|
||||
}
|
||||
// # 3000 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 3047 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
{
|
||||
if( xCoreID == 0 )
|
||||
{
|
||||
|
|
@ -12601,7 +12611,7 @@ static BaseType_t prvCreateIdleTasks( void )
|
|||
( ( UBaseType_t ) 0x00 ), /* In effect ( tskIDLE_PRIORITY | portPRIVILEGE_BIT ), but tskIDLE_PRIORITY is zero. */
|
||||
&xIdleTaskHandle[ xCoreID ] ); /*lint !e961 MISRA exception, justified as it is not a redundant explicit cast to all supported compilers. */
|
||||
}
|
||||
// # 3023 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 3070 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -12638,7 +12648,7 @@ void vTaskStartScheduler( void )
|
|||
* so interrupts will automatically get re-enabled when the first task
|
||||
* starts to run. */
|
||||
assert_fct(false, "portDISABLE_INTERRUPTS");
|
||||
// # 3073 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 3120 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
xNextTaskUnblockTime = ( TickType_t ) 0xffffffffUL;
|
||||
xSchedulerRunning = ( ( char ) 1 );
|
||||
xTickCount = ( TickType_t ) 0;
|
||||
|
|
@ -12735,7 +12745,7 @@ void vTaskSuspendAll( void )
|
|||
}
|
||||
}
|
||||
/*----------------------------------------------------------*/
|
||||
// # 3231 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 3278 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*----------------------------------------------------------*/
|
||||
|
||||
BaseType_t xTaskResumeAll( void )
|
||||
|
|
@ -13105,7 +13115,7 @@ char * pcTaskGetName( TaskHandle_t xTaskToQuery ) /*lint !e971 Unqualified char
|
|||
* each task in the Suspended state. */
|
||||
uxTask += prvListTasksWithinSingleList( &( pxTaskStatusArray[ uxTask ] ), &xSuspendedTaskList, eSuspended );
|
||||
}
|
||||
// # 3614 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 3661 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
{
|
||||
if( pulTotalRunTime != 0 )
|
||||
{
|
||||
|
|
@ -13144,7 +13154,7 @@ char * pcTaskGetName( TaskHandle_t xTaskToQuery ) /*lint !e971 Unqualified char
|
|||
* This is to ensure vTaskStepTick() is available when user defined low power mode
|
||||
* implementations require configUSE_TICKLESS_IDLE to be set to a value other than
|
||||
* 1. */
|
||||
// # 3665 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 3712 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*----------------------------------------------------------*/
|
||||
|
||||
BaseType_t xTaskCatchUpTicks( TickType_t xTicksToCatchUp )
|
||||
|
|
@ -13454,13 +13464,13 @@ BaseType_t xTaskIncrementTick( void )
|
|||
return xSwitchRequired;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
// # 4003 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 4050 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*-----------------------------------------------------------*/
|
||||
// # 4027 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 4074 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*-----------------------------------------------------------*/
|
||||
// # 4052 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 4099 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*-----------------------------------------------------------*/
|
||||
// # 4085 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 4132 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vTaskSwitchContext( BaseType_t xCoreID )
|
||||
|
|
@ -13490,7 +13500,7 @@ void vTaskSwitchContext( BaseType_t xCoreID )
|
|||
{
|
||||
xYieldPendings[ xCoreID ] = ( ( char ) 0 );
|
||||
;
|
||||
// # 4143 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 4190 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/* Check for stack overflow, if configured. */
|
||||
{ const uint32_t * const pulStack = ( uint32_t * ) xTaskGetCurrentTaskHandle()->pxStack; const uint32_t ulCheckValue = ( uint32_t ) 0xa5a5a5a5; if( ( pulStack[ 0 ] != ulCheckValue ) || ( pulStack[ 1 ] != ulCheckValue ) || ( pulStack[ 2 ] != ulCheckValue ) || ( pulStack[ 3 ] != ulCheckValue ) ) { vApplicationStackOverflowHook( ( TaskHandle_t ) xTaskGetCurrentTaskHandle(), xTaskGetCurrentTaskHandle()->pcTaskName ); } };
|
||||
|
||||
|
|
@ -13507,7 +13517,7 @@ void vTaskSwitchContext( BaseType_t xCoreID )
|
|||
;
|
||||
|
||||
/* After the new task is switched in, update the global errno. */
|
||||
// # 4177 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 4224 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
}
|
||||
}
|
||||
vPortRecursiveLock(0, spin_lock_instance(14), ( ( char ) 0 ));
|
||||
|
|
@ -13620,7 +13630,7 @@ BaseType_t xTaskRemoveFromEventList( const List_t * const pxEventList )
|
|||
{
|
||||
( void ) uxListRemove( &( pxUnblockedTCB->xStateListItem ) );
|
||||
; { if( ( ( pxUnblockedTCB )->uxPriority ) > uxTopReadyPriority ) { uxTopReadyPriority = ( ( pxUnblockedTCB )->uxPriority ); } }; vListInsertEnd( &( pxReadyTasksLists[ ( pxUnblockedTCB )->uxPriority ] ), &( ( pxUnblockedTCB )->xStateListItem ) ); ;
|
||||
// # 4303 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 4350 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
}
|
||||
else
|
||||
{
|
||||
|
|
@ -13660,7 +13670,7 @@ void vTaskRemoveFromUnorderedEventList( ListItem_t * pxEventListItem,
|
|||
pxUnblockedTCB = ( ( pxEventListItem )->pvOwner ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
|
||||
assert(pxUnblockedTCB);
|
||||
( void ) uxListRemove( pxEventListItem );
|
||||
// # 4357 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 4404 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/* Remove the task from the delayed list and add it to the ready list. The
|
||||
* scheduler is suspended so interrupts will not be accessing the ready
|
||||
* lists. */
|
||||
|
|
@ -13825,7 +13835,7 @@ void vTaskMissedYield( void )
|
|||
*
|
||||
* @todo additional conditional compiles to remove this function.
|
||||
*/
|
||||
// # 4581 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 4628 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*
|
||||
* -----------------------------------------------------------
|
||||
* The Idle task.
|
||||
|
|
@ -13855,7 +13865,7 @@ static void prvIdleTask( void * pvParameters )
|
|||
/* See if any tasks have deleted themselves - if so then the idle task
|
||||
* is responsible for freeing the deleted task's TCB and stack. */
|
||||
prvCheckTasksWaitingTermination();
|
||||
// # 4622 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 4669 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
{
|
||||
/* When using preemption tasks of equal priority will be
|
||||
* timesliced. If a task that is sharing the idle priority is ready
|
||||
|
|
@ -13876,16 +13886,16 @@ static void prvIdleTask( void * pvParameters )
|
|||
;
|
||||
}
|
||||
}
|
||||
// # 4658 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 4705 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/* This conditional compilation should use inequality to 0, not equality
|
||||
* to 1. This is to ensure portSUPPRESS_TICKS_AND_SLEEP() is called when
|
||||
* user defined low power mode implementations require
|
||||
* configUSE_TICKLESS_IDLE to be set to a value other than 1. */
|
||||
// # 4723 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 4770 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
// # 4773 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 4820 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
|
||||
|
|
@ -13930,7 +13940,7 @@ static void prvIdleTask( void * pvParameters )
|
|||
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
// # 4833 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 4880 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvInitialiseTaskLists( void )
|
||||
|
|
@ -14032,7 +14042,7 @@ static void prvCheckTasksWaitingTermination( void )
|
|||
{
|
||||
pxTaskStatus->uxBasePriority = pxTCB->uxBasePriority;
|
||||
}
|
||||
// # 4945 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 4992 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
{
|
||||
pxTaskStatus->ulRunTimeCounter = 0;
|
||||
}
|
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@ -14163,7 +14173,7 @@ static void prvCheckTasksWaitingTermination( void )
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/*-----------------------------------------------------------*/
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// # 5114 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
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// # 5161 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
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/*-----------------------------------------------------------*/
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||||
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@ -14220,7 +14230,7 @@ static void prvCheckTasksWaitingTermination( void )
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free( (void*) pxTCB->pxStack);
|
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free( (void*) pxTCB);
|
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}
|
||||
// # 5197 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 5244 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -14722,11 +14732,11 @@ void vTaskYieldWithinAPI( void )
|
|||
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
// # 5724 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 5771 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*-----------------------------------------------------------*/
|
||||
// # 5830 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 5877 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*----------------------------------------------------------*/
|
||||
// # 5957 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 6004 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
TickType_t uxTaskResetEventItemValue( void )
|
||||
|
|
@ -15000,7 +15010,7 @@ TickType_t uxTaskResetEventItemValue( void )
|
|||
|
||||
/* The task should not have been on an event list. */
|
||||
assert(( ( &( pxTCB->xEventListItem ) )->pxContainer ) == 0);
|
||||
// # 6248 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 6295 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
{
|
||||
prvYieldForTask( pxTCB, ( ( char ) 0 ) );
|
||||
}
|
||||
|
|
@ -15294,7 +15304,7 @@ TickType_t uxTaskResetEventItemValue( void )
|
|||
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
// # 6557 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 6604 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvAddCurrentTaskToDelayedList( TickType_t xTicksToWait,
|
||||
|
|
@ -15370,7 +15380,7 @@ static void prvAddCurrentTaskToDelayedList( TickType_t xTicksToWait,
|
|||
}
|
||||
}
|
||||
}
|
||||
// # 6669 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
// # 6716 "/Users/reitobia/repos2/FreeRTOS-Kernel/tasks.c"
|
||||
}
|
||||
|
||||
/* Code below here allows additional code to be inserted into this source file,
|
||||
|
|
|
|||
|
|
@ -15,6 +15,11 @@ PP_TASK_C="$START_WD/preprocessed_files/tasks__pp.c"
|
|||
|
||||
FONT_SIZE=16
|
||||
|
||||
# Flags to SKIP expensive proofs:
|
||||
# - VERIFAST_SKIP_BITVECTOR_PROOF__STACK_ALIGNMENT
|
||||
# Currently, these flags are set manually in the preprocessing script.
|
||||
|
||||
|
||||
cd "$PP_SCRIPT_DIR"
|
||||
pwd
|
||||
ls
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue