@ -51,7 +51,7 @@
* Also , there are two support functions that can be called from a developer ' s C code .
*
* uint16_t check_for_free_memory_corruption ( PGM_P const free_memory_start ) ;
* void M100_dump_routine ( PGM_P const title , const char * start , const char * end ) ;
* void M100_dump_routine ( PGM_P const title , char * start , char * end ) ;
*
* Initial version by Roxy - 3 D
*/
@ -63,43 +63,34 @@
# if defined(__AVR__) || IS_32BIT_TEENSY
extern char __bss_end ;
char * end_bss = & __bss_end ;
char * free_memory_start = end_bss ;
char * free_memory_end = 0 ;
char * stacklimit = 0 ;
char * heaplimit = 0 ;
char * end_bss = & __bss_end ,
* free_memory_start = end_bss , * free_memory_end = 0 ,
* stacklimit = 0 , * heaplimit = 0 ;
# define MEMORY_END_CORRECTION 0
# elif defined(TARGET_LPC1768)
extern char __bss_end__ ;
extern char __StackLimit ;
extern char __HeapLimit ;
extern char __bss_end__ , __StackLimit , __HeapLimit ;
char * end_bss = & __bss_end__ ;
char * stacklimit = & __StackLimit ;
char * heaplimit = & __HeapLimit ;
char * end_bss = & __bss_end__ ,
* stacklimit = & __StackLimit ,
* heaplimit = & __HeapLimit ;
# define MEMORY_END_CORRECTION 0x200
char * free_memory_start = heaplimit ;
char * free_memory_end = stacklimit - MEMORY_END_CORRECTION ;
char * free_memory_start = heaplimit ,
* free_memory_end = stacklimit - MEMORY_END_CORRECTION ;
# elif defined(__SAM3X8E__)
extern char _ebss ;
char * end_bss = & _ebss ;
char * free_memory_start = end_bss ;
extern char _ebss ;
char * free_memory_end = 0 ;
char * stacklimit = 0 ;
char * heaplimit = 0 ;
char * end_bss = & _ebss ,
* free_memory_start = end_bss ,
* free_memory_end = 0 ,
* stacklimit = 0 ,
* heaplimit = 0 ;
# define MEMORY_END_CORRECTION 0x10000 // need to stay well below 0x20080000 or M100 F crashes
@ -141,7 +132,7 @@ inline int32_t count_test_bytes(const char * const start_free_memory) {
* the block . If so , it may indicate memory corruption due to a bad pointer .
* Unexpected bytes are flagged in the right column .
*/
inline void dump_free_memory ( const char * start_free_memory , const char * end_free_memory ) {
inline void dump_free_memory ( char * start_free_memory , char * end_free_memory ) {
//
// Start and end the dump on a nice 16 byte boundary
// (even though the values are not 16-byte aligned).
@ -162,7 +153,7 @@ inline int32_t count_test_bytes(const char * const start_free_memory) {
SERIAL_CHAR ( ' | ' ) ; // Point out non test bytes
for ( uint8_t i = 0 ; i < 16 ; i + + ) {
char ccc = ( char ) start_free_memory [ i ] ; // cast to char before automatically casting to char on assignment, in case the compiler is broken
if ( & start_free_memory [ i ] > = ( const char * ) command_queue & & & start_free_memory [ i ] < ( const char * ) ( command_queue + sizeof ( command_queue ) ) ) { // Print out ASCII in the command buffer area
if ( & start_free_memory [ i ] > = ( char * ) command_queue & & & start_free_memory [ i ] < ( char * ) command_queue + sizeof ( command_queue ) ) { // Print out ASCII in the command buffer area
if ( ! WITHIN ( ccc , ' ' , 0x7E ) ) ccc = ' ' ;
}
else { // If not in the command buffer area, flag bytes that don't match the test byte
@ -177,7 +168,7 @@ inline int32_t count_test_bytes(const char * const start_free_memory) {
}
}
void M100_dump_routine ( PGM_P const title , const char * start , const char * end ) {
void M100_dump_routine ( PGM_P const title , char * start , char * end ) {
serialprintPGM ( title ) ;
SERIAL_EOL ( ) ;
//
@ -198,7 +189,7 @@ inline int check_for_free_memory_corruption(PGM_P const title) {
SERIAL_ECHOPAIR ( " \n fmc() n= " , n ) ;
SERIAL_ECHOPAIR ( " \n free_memory_start= " , hex_address ( free_memory_start ) ) ;
SERIAL_ECHOLNPAIR ( " end_free_memory= " , hex_address ( end_free_memory ) ) ;
SERIAL_ECHOLNPAIR ( " end_free_memory= " , hex_address ( end_free_memory ) ) ;
if ( end_free_memory < start_free_memory ) {
SERIAL_ECHOPGM ( " end_free_memory < Heap " ) ;
@ -340,11 +331,11 @@ void GcodeSuite::M100() {
char * sp = top_of_stack ( ) ;
if ( ! free_memory_end ) free_memory_end = sp - MEMORY_END_CORRECTION ;
SERIAL_ECHOPAIR ( " \n bss_end : " , hex_address ( end_bss ) ) ;
if ( heaplimit ) SERIAL_ECHOPAIR ( " \n __heaplimit : " , hex_address ( heaplimit ) ) ;
if ( heaplimit ) SERIAL_ECHOPAIR ( " \n __heaplimit : " , hex_address ( heaplimit ) ) ;
SERIAL_ECHOPAIR ( " \n free_memory_start : " , hex_address ( free_memory_start ) ) ;
if ( stacklimit ) SERIAL_ECHOPAIR ( " \n __stacklimit : " , hex_address ( stacklimit ) ) ;
SERIAL_ECHOPAIR ( " \n free_memory_end : " , hex_address ( free_memory_end ) ) ;
if ( MEMORY_END_CORRECTION ) SERIAL_ECHOPAIR ( " \n MEMORY_END_CORRECTION: " , MEMORY_END_CORRECTION ) ;
SERIAL_ECHOPAIR ( " \n free_memory_end : " , hex_address ( free_memory_end ) ) ;
if ( MEMORY_END_CORRECTION ) SERIAL_ECHOPAIR ( " \n MEMORY_END_CORRECTION: " , MEMORY_END_CORRECTION ) ;
SERIAL_ECHOLNPAIR ( " \n Stack Pointer : " , hex_address ( sp ) ) ;
// Always init on the first invocation of M100