diff options
Diffstat (limited to 'common_smp/src/tx_thread_create.c')
| -rw-r--r-- | common_smp/src/tx_thread_create.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/common_smp/src/tx_thread_create.c b/common_smp/src/tx_thread_create.c index 2c799a9b..ffb37132 100644 --- a/common_smp/src/tx_thread_create.c +++ b/common_smp/src/tx_thread_create.c @@ -37,7 +37,7 @@ /* FUNCTION RELEASE */ /* */ /* _tx_thread_create PORTABLE SMP */ -/* 6.2.0 */ +/* 6.x */ /* AUTHOR */ /* */ /* William E. Lamie, Microsoft Corporation */ @@ -89,6 +89,10 @@ /* restore interrupts at end */ /* of if block, */ /* resulting in version 6.2.0 */ +/* xx-xx-xxxx Xiuwen Cai Modified comment(s), */ +/* added option for random */ +/* number stack filling, */ +/* resulting in version 6.x */ /* */ /**************************************************************************/ UINT _tx_thread_create(TX_THREAD *thread_ptr, CHAR *name_ptr, @@ -110,6 +114,17 @@ ALIGN_TYPE updated_stack_start; #ifndef TX_DISABLE_STACK_FILLING +#if defined(TX_ENABLE_RANDOM_NUMBER_STACK_FILLING) && defined(TX_ENABLE_STACK_CHECKING) + + /* Initialize the stack fill value to a 8-bit random value. */ + thread_ptr -> tx_thread_stack_fill_value = ((ULONG) TX_RAND()) & 0xFFUL; + + /* Duplicate the random value in each of the 4 bytes of the stack fill value. */ + thread_ptr -> tx_thread_stack_fill_value = thread_ptr -> tx_thread_stack_fill_value | + (thread_ptr -> tx_thread_stack_fill_value << 8) | + (thread_ptr -> tx_thread_stack_fill_value << 16) | + (thread_ptr -> tx_thread_stack_fill_value << 24); +#endif /* Set the thread stack to a pattern prior to creating the initial stack frame. This pattern is used by the stack checking routines |