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M100: LPC1768 and DUE compatibility (#13962)

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This commit is contained in:
Bob Kuhn 2019-05-09 21:57:44 -05:00 committed by Scott Lahteine
parent 88bedf3a57
commit fa3739aa23
1 changed files with 97 additions and 55 deletions
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152
Marlin/src/gcode/calibrate/M100.cpp
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@ -50,7 +50,7 @@
*
* 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 ptr);
* 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);
*
* Initial version by Roxy-3D
@ -60,16 +60,57 @@
#define TEST_BYTE ((char) 0xE5)
extern char* __brkval;
extern size_t __heap_start, __heap_end, __flp;
extern char __bss_end;
#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;
#define MEMORY_END_CORRECTION 0
#elif defined(TARGET_LPC1768)
extern char __bss_end__;
extern char __StackLimit;
extern char __HeapLimit;
char* end_bss = &__bss_end__;
char* stacklimit = &__StackLimit;
char* heaplimit = &__HeapLimit ;
#define MEMORY_END_CORRECTION 0x200
char* free_memory_start = heaplimit;
char* free_memory_end = stacklimit - MEMORY_END_CORRECTION;
#elif defined(__SAM3X8E__)
extern char _ebss;
char* end_bss = &_ebss;
char* free_memory_start = end_bss;
char* free_memory_end = 0;
char* stacklimit = 0;
char* heaplimit = 0;
#define MEMORY_END_CORRECTION 0x10000 // need to stay well below 0x20080000 or M100 F crashes
#else
#error "M100 - unsupported CPU"
#endif
//
// Utility functions
//
#define END_OF_HEAP() (__brkval ? __brkval : &__bss_end)
// Location of a variable on its stack frame. Returns a value above
// the stack (once the function returns to the caller).
char* top_of_stack() {
@ -78,9 +119,9 @@ char* top_of_stack() {
}
// Count the number of test bytes at the specified location.
inline int32_t count_test_bytes(const char * const ptr) {
inline int32_t count_test_bytes(const char * const start_free_memory) {
for (uint32_t i = 0; i < 32000; i++)
if (char(ptr[i]) != TEST_BYTE)
if (char(start_free_memory[i]) != TEST_BYTE)
return i - 1;
return -1;
@ -93,35 +134,35 @@ inline int32_t count_test_bytes(const char * const ptr) {
#if ENABLED(M100_FREE_MEMORY_DUMPER)
/**
* M100 D
* Dump the free memory block from __brkval to the stack pointer.
* Dump the free memory block from brkval to the stack pointer.
* malloc() eats memory from the start of the block and the stack grows
* up from the bottom of the block. Solid test bytes indicate nothing has
* used that memory yet. There should not be anything but test bytes within
* 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 *ptr, const char *sp) {
inline void dump_free_memory(const char *start_free_memory, const char *end_free_memory) {
//
// Start and end the dump on a nice 16 byte boundary
// (even though the values are not 16-byte aligned).
//
ptr = (char*)((ptr_int_t)((uint32_t)ptr & 0xFFFFFFF0)); // Align to 16-byte boundary
sp = (char*)((ptr_int_t)((uint32_t)sp | 0x0000000F)); // Align sp to the 15th byte (at or above sp)
start_free_memory = (char*)((ptr_int_t)((uint32_t)start_free_memory & 0xFFFFFFF0)); // Align to 16-byte boundary
end_free_memory = (char*)((ptr_int_t)((uint32_t)end_free_memory | 0x0000000F)); // Align end_free_memory to the 15th byte (at or above end_free_memory)
// Dump command main loop
while (ptr < sp) {
print_hex_address(ptr); // Print the address
while (start_free_memory < end_free_memory) {
print_hex_address(start_free_memory); // Print the address
SERIAL_CHAR(':');
for (uint8_t i = 0; i < 16; i++) { // and 16 data bytes
if (i == 8) SERIAL_CHAR('-');
print_hex_byte(ptr[i]);
print_hex_byte(start_free_memory[i]);
SERIAL_CHAR(' ');
}
serial_delay(25);
SERIAL_CHAR('|'); // Point out non test bytes
for (uint8_t i = 0; i < 16; i++) {
char ccc = (char)ptr[i]; // cast to char before automatically casting to char on assignment, in case the compiler is broken
if (&ptr[i] >= (const char*)command_queue && &ptr[i] < (const char*)(command_queue + sizeof(command_queue))) { // Print out ASCII in the command buffer area
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 (!WITHIN(ccc, ' ', 0x7E)) ccc = ' ';
}
else { // If not in the command buffer area, flag bytes that don't match the test byte
@ -130,7 +171,7 @@ inline int32_t count_test_bytes(const char * const ptr) {
SERIAL_CHAR(ccc);
}
SERIAL_EOL();
ptr += 16;
start_free_memory += 16;
serial_delay(25);
idle();
}
@ -143,7 +184,7 @@ inline int32_t count_test_bytes(const char * const ptr) {
// Round the start and end locations to produce full lines of output
//
start = (char*)((ptr_int_t)((uint32_t)start & 0xFFFFFFF0)); // Align to 16-byte boundary
end = (char*)((ptr_int_t)((uint32_t)end | 0x0000000F)); // Align sp to the 15th byte (at or above sp)
end = (char*)((ptr_int_t)((uint32_t)end | 0x0000000F)); // Align end_free_memory to the 15th byte (at or above end_free_memory)
dump_free_memory(start, end);
}
@ -152,17 +193,15 @@ inline int32_t count_test_bytes(const char * const ptr) {
inline int check_for_free_memory_corruption(PGM_P const title) {
serialprintPGM(title);
char *ptr = END_OF_HEAP(), *sp = top_of_stack();
int n = sp - ptr;
char *start_free_memory = free_memory_start, *end_free_memory = free_memory_end;
int n = end_free_memory - start_free_memory;
SERIAL_ECHOPAIR("\nfmc() n=", n);
SERIAL_ECHOPAIR("\n&__brkval: ", hex_address(&__brkval));
SERIAL_ECHOPAIR("=", hex_address(__brkval));
SERIAL_ECHOPAIR("\n__bss_end: ", hex_address(&__bss_end));
SERIAL_ECHOPAIR(" sp=", hex_address(sp));
SERIAL_ECHOPAIR("\nfree_memory_start=", hex_address(free_memory_start));
SERIAL_ECHOLNPAIR(" end_free_memory=", hex_address(end_free_memory));
if (sp < ptr) {
SERIAL_ECHOPGM(" sp < Heap ");
if (end_free_memory < start_free_memory) {
SERIAL_ECHOPGM(" end_free_memory < Heap ");
// SET_INPUT_PULLUP(63); // if the developer has a switch wired up to their controller board
// safe_delay(5); // this code can be enabled to pause the display as soon as the
// while ( READ(63)) // malfunction is detected. It is currently defaulting to a switch
@ -172,29 +211,29 @@ inline int check_for_free_memory_corruption(PGM_P const title) {
// idle();
serial_delay(20);
#if ENABLED(M100_FREE_MEMORY_DUMPER)
M100_dump_routine(PSTR(" Memory corruption detected with sp<Heap\n"), (char*)0x1B80, (char*)0x21FF);
M100_dump_routine(PSTR(" Memory corruption detected with end_free_memory<Heap\n"), (char*)0x1B80, (char*)0x21FF);
#endif
}
// Scan through the range looking for the biggest block of 0xE5's we can find
int block_cnt = 0;
for (int i = 0; i < n; i++) {
if (ptr[i] == TEST_BYTE) {
int32_t j = count_test_bytes(ptr + i);
if (start_free_memory[i] == TEST_BYTE) {
int32_t j = count_test_bytes(start_free_memory + i);
if (j > 8) {
// SERIAL_ECHOPAIR("Found ", j);
// SERIAL_ECHOLNPAIR(" bytes free at ", hex_address(ptr + i));
// SERIAL_ECHOLNPAIR(" bytes free at ", hex_address(start_free_memory + i));
i += j;
block_cnt++;
SERIAL_ECHOPAIR(" (", block_cnt);
SERIAL_ECHOPAIR(") found=", j);
SERIAL_ECHOPGM(" ");
SERIAL_ECHOLNPGM(" ");
}
}
}
SERIAL_ECHOPAIR(" block_found=", block_cnt);
if (block_cnt != 1 || __brkval != nullptr)
if (block_cnt != 1)
SERIAL_ECHOLNPGM("\nMemory Corruption detected in free memory area.");
if (block_cnt == 0) // Make sure the special case of no free blocks shows up as an
@ -215,12 +254,12 @@ inline int check_for_free_memory_corruption(PGM_P const title) {
* Return the number of free bytes in the memory pool,
* with other vital statistics defining the pool.
*/
inline void free_memory_pool_report(char * const ptr, const int32_t size) {
inline void free_memory_pool_report(char * const start_free_memory, const int32_t size) {
int32_t max_cnt = -1, block_cnt = 0;
char *max_addr = nullptr;
// Find the longest block of test bytes in the buffer
for (int32_t i = 0; i < size; i++) {
char *addr = ptr + i;
char *addr = start_free_memory + i;
if (*addr == TEST_BYTE) {
const int32_t j = count_test_bytes(addr);
if (j > 8) {
@ -249,14 +288,14 @@ inline void free_memory_pool_report(char * const ptr, const int32_t size) {
* Corrupt <num> locations in the free memory pool and report the corrupt addresses.
* This is useful to check the correctness of the M100 D and the M100 F commands.
*/
inline void corrupt_free_memory(char *ptr, const uint32_t size) {
ptr += 8;
const uint32_t near_top = top_of_stack() - ptr - 250, // -250 to avoid interrupt activity that's altered the stack.
inline void corrupt_free_memory(char *start_free_memory, const uint32_t size) {
start_free_memory += 8;
const uint32_t near_top = top_of_stack() - start_free_memory - 250, // -250 to avoid interrupt activity that's altered the stack.
j = near_top / (size + 1);
SERIAL_ECHOLNPGM("Corrupting free memory block.\n");
for (uint32_t i = 1; i <= size; i++) {
char * const addr = ptr + i * j;
char * const addr = start_free_memory + i * j;
*addr = i;
SERIAL_ECHOPAIR("\nCorrupting address: ", hex_address(addr));
}
@ -268,7 +307,7 @@ inline void free_memory_pool_report(char * const ptr, const int32_t size) {
* M100 I
* Init memory for the M100 tests. (Automatically applied on the first M100.)
*/
inline void init_free_memory(char *ptr, int32_t size) {
inline void init_free_memory(char *start_free_memory, int32_t size) {
SERIAL_ECHOLNPGM("Initializing free memory block.\n\n");
size -= 250; // -250 to avoid interrupt activity that's altered the stack.
@ -277,17 +316,17 @@ inline void init_free_memory(char *ptr, int32_t size) {
return;
}
ptr += 8; // move a few bytes away from the heap just because we don't want
start_free_memory += 8; // move a few bytes away from the heap just because we don't want
// to be altering memory that close to it.
memset(ptr, TEST_BYTE, size);
memset(start_free_memory, TEST_BYTE, size);
SERIAL_ECHO(size);
SERIAL_ECHOLNPGM(" bytes of memory initialized.\n");
for (int32_t i = 0; i < size; i++) {
if (ptr[i] != TEST_BYTE) {
SERIAL_ECHOPAIR("? address : ", hex_address(ptr + i));
SERIAL_ECHOLNPAIR("=", hex_byte(ptr[i]));
if (start_free_memory[i] != TEST_BYTE) {
SERIAL_ECHOPAIR("? address : ", hex_address(start_free_memory + i));
SERIAL_ECHOLNPAIR("=", hex_byte(start_free_memory[i]));
SERIAL_EOL();
}
}
@ -297,33 +336,36 @@ inline void init_free_memory(char *ptr, int32_t size) {
* M100: Free Memory Check
*/
void GcodeSuite::M100() {
SERIAL_ECHOPAIR("\n__brkval : ", hex_address(__brkval));
SERIAL_ECHOPAIR("\n__bss_end : ", hex_address(&__bss_end));
char *ptr = END_OF_HEAP(), *sp = top_of_stack();
SERIAL_ECHOPAIR("\nstart of free space : ", hex_address(ptr));
SERIAL_ECHOLNPAIR("\nStack Pointer : ", hex_address(sp));
char *sp = top_of_stack();
if (!free_memory_end) free_memory_end = sp - MEMORY_END_CORRECTION;
SERIAL_ECHOPAIR("\nbss_end : ", hex_address(end_bss));
if (heaplimit) SERIAL_ECHOPAIR("\n__heaplimit : ", hex_address(heaplimit ));
SERIAL_ECHOPAIR("\nfree_memory_start : ", hex_address(free_memory_start));
if (stacklimit) SERIAL_ECHOPAIR("\n__stacklimit : ", hex_address(stacklimit));
SERIAL_ECHOPAIR("\nfree_memory_end : ", hex_address(free_memory_end ));
if (MEMORY_END_CORRECTION) SERIAL_ECHOPAIR("\nMEMORY_END_CORRECTION: ", MEMORY_END_CORRECTION );
SERIAL_ECHOLNPAIR("\nStack Pointer : ", hex_address(sp));
// Always init on the first invocation of M100
static bool m100_not_initialized = true;
if (m100_not_initialized || parser.seen('I')) {
m100_not_initialized = false;
init_free_memory(ptr, sp - ptr);
init_free_memory(free_memory_start, free_memory_end - free_memory_start);
}
#if ENABLED(M100_FREE_MEMORY_DUMPER)
if (parser.seen('D'))
return dump_free_memory(ptr, sp);
return dump_free_memory(free_memory_start, free_memory_end);
#endif
if (parser.seen('F'))
return free_memory_pool_report(ptr, sp - ptr);
return free_memory_pool_report(free_memory_start, free_memory_end - free_memory_start);
#if ENABLED(M100_FREE_MEMORY_CORRUPTOR)
if (parser.seen('C'))
return corrupt_free_memory(ptr, parser.value_int());
return corrupt_free_memory(free_memory_start, parser.value_int());
#endif
}