diff options
Diffstat (limited to 'avr/debug.c')
| -rw-r--r-- | avr/debug.c | 39 |
1 files changed, 23 insertions, 16 deletions
diff --git a/avr/debug.c b/avr/debug.c index 21dd242..7ff7aea 100644 --- a/avr/debug.c +++ b/avr/debug.c @@ -22,19 +22,6 @@ #ifdef DEBUG - -#if 0 -void dump_heap(void) -{ - extern unsigned int __brkval; - - dump_ram(__malloc_heap_start, - __brkval - (unsigned int) __malloc_heap_start, - "=== Heap:"); -} -#endif - - /* * Memory Display * md addr {len} @@ -212,11 +199,16 @@ struct __freelist { struct __freelist *nx; }; -extern char *__brkval; /* first location not yet allocated */ -extern struct __freelist *__flp; /* freelist pointer (head of freelist) */ +extern char *__brkval; /* first location not yet allocated */ +extern struct __freelist *__flp; /* freelist pointer (head of freelist) */ #define STACK_POINTER() ((char *)AVR_STACK_POINTER_REG) +size_t get_freemem(void) +{ + return (size_t) STACK_POINTER() - __malloc_margin - (size_t) __brkval; +} + void printfreelist(const char * title) { @@ -241,7 +233,7 @@ printfreelist(const char * title) } } - freesum += (size_t) STACK_POINTER() - __malloc_margin - (size_t) __brkval; + freesum += get_freemem(); printf("SP: %04x, __brkval: %04x, Total free: %04u\n", (size_t) STACK_POINTER(), (size_t) __brkval, freesum); @@ -254,4 +246,19 @@ command_ret_t do_pr_free_avr(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, return CMD_RET_SUCCESS; } +void dump_heap(void) +{ + //extern unsigned int __brkval; + + dump_ram((uint8_t *)__malloc_heap_start, (size_t) __malloc_heap_start, __brkval - __malloc_heap_start, + "=== Heap:"); +} + +command_ret_t do_pr_heap_avr(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char * const argv[] UNUSED) +{ + dump_heap(); + + return CMD_RET_SUCCESS; +} + #endif /* DEBUG */ |