From 93b063fedfcf7409a67df035170ea5670cad22e1 Mon Sep 17 00:00:00 2001 From: Josh Rahm Date: Tue, 24 Nov 2020 13:46:41 -0700 Subject: Moved action to top level. Removed old iterations of the project and moved the files from 02-usart to the root directory since that's the sole place where the action is and that subproject has outgrown its initial title. --- include/kern/mem.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 include/kern/mem.h (limited to 'include/kern/mem.h') diff --git a/include/kern/mem.h b/include/kern/mem.h new file mode 100644 index 0000000..c0999f5 --- /dev/null +++ b/include/kern/mem.h @@ -0,0 +1,32 @@ +#ifndef MEM_H_ +#define MEM_H_ + +#include "arch.h" +#include + +#define DATA_SEGMENT_STOP_ADDR ((uint8_t*) &DATA_SEGMENT_STOP) +#define DATA_SEGMENT_START_ADDR ((uint8_t*) &DATA_SEGMENT_START) + +#define MAX_HEAP_SIZE \ + ((16384 - (DATA_SEGMENT_STOP_ADDR - DATA_SEGMENT_START_ADDR)) / 4 * 4) + +/* allocates memory on the head, which is stored in sram2 */ +void* halloc(size_t n); + +/* Frees the memory allocated by halloc. */ +void hfree(void* mem); + +#ifdef FOR_TESTING + +void* debug_halloc_get_next_ptr(void* ptr); + +void* debug_halloc_get_prev_ptr(void* ptr); + +int debug_halloc_assert_consistency(char* error, size_t len); + +void debug_print_blocks(); + +#endif + + +#endif -- cgit