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Add task tracking option for heap usage monitoring

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Add back a feature that was available in the old heap implementation
in release/v2.1 and earlier: keep track of which task allocates each
block from the heap. The task handle is conditionally added as
another word in the heap poisoning header under this configuration
option CONFIG_HEAP_TASK_TRACKING.

To allow custom monitoring and debugging code to be added, add helper
functions in multi_heap.c and multi_heap_poisoning.c to provide access
to information in the block headers.
This commit is contained in:
Stephen Casner
2018-01-10 01:14:47 -08:00
parent 82b339cdaf
commit e3b702c459
6 changed files with 95 additions and 0 deletions
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21
components/heap/multi_heap_internal.h
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@@ -13,6 +13,9 @@
// limitations under the License.
#pragma once
/* Opaque handle to a heap block */
typedef const struct heap_block *multi_heap_block_handle_t;
/* Internal definitions for the "implementation" of the multi_heap API,
as defined in multi_heap.c.
@@ -28,6 +31,7 @@ void multi_heap_get_info_impl(multi_heap_handle_t heap, multi_heap_info_t *info)
size_t multi_heap_free_size_impl(multi_heap_handle_t heap);
size_t multi_heap_minimum_free_size_impl(multi_heap_handle_t heap);
size_t multi_heap_get_allocated_size_impl(multi_heap_handle_t heap, void *p);
void* multi_heap_get_block_address_impl(multi_heap_block_handle_t block);
/* Some internal functions for heap poisoning use */
@@ -45,3 +49,20 @@ void multi_heap_internal_poison_fill_region(void *start, size_t size, bool is_fr
void multi_heap_internal_lock(multi_heap_handle_t heap);
void multi_heap_internal_unlock(multi_heap_handle_t heap);
/* Some internal functions for heap debugging code to use */
/* Get the handle to the first (fixed free) block in a heap */
multi_heap_block_handle_t multi_heap_get_first_block(multi_heap_handle_t heap);
/* Get the handle to the next block in a heap, with validation */
multi_heap_block_handle_t multi_heap_get_next_block(multi_heap_handle_t heap, multi_heap_block_handle_t block);
/* Test if a heap block is free */
bool multi_heap_is_free(const multi_heap_block_handle_t block);
/* Get the data address of a heap block */
void* multi_heap_get_block_address(multi_heap_block_handle_t block);
/* Get the owner identification for a heap block */
void* multi_heap_get_block_owner(multi_heap_block_handle_t block);