Commit graph

15 commits

Author SHA1 Message Date
Felipe Neves
15cdd2859a heap: added aligned alloc implementation on multi_heap layer 2020-03-08 23:17:05 +00:00
Angus Gratton
b1f3586f7e multi_heap: Fix bug when start of heap is unaligned
Alignment was accounted for in one place only.

TW27954
2018-12-20 01:40:05 +00:00
Deomid Ryabkov
4b7eb1792e Try to merge tail with next block when splitting
When splitting a memory block, check if the next block is free.
If it is, then just extend it upwards instead of creating a new block.
This fixes a bug where when shrinking existing allocations would result in irreversible free space fragmentation.

When testing on the host, test all the poisoning configurations.
2018-04-03 12:30:52 +10:00
Stephen Casner
bc2879a956 heap: Add task tracking option for heap usage monitoring
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.

Add esp_heap_debug_dump_totals() to monitor heap usage

esp_heap_debug_dump_totals() dumps into a user-provided data structure
a summary of the amound of heap memory in region type that is used by
each task.  Optionally it will also dump into another data structure
the metadata about each allocated block for a given list of tasks or
for all tasks (limited by available space).

Address change requests on PR #1498

This set of changes fixes the files in e3b702c to just add the
CONFIG_HEAP_TASK_TRACKING option without adding the new function
heap_caps_get_per_task_info() in case that is the only portion of the
PR that will be accepted.  Part of the change is to remove the new .c
and .h files containing that function and to remove the line to
compile it from components/heap/component.mk since it should not have
been included in e3b702c.  One or more additional commits to add the
new function will follow.

The other changes here:
- uint32_t get_all_caps() moves to heap_private.h
- replace "void* foo" with "void *foo"
- add braces around single-line "if" blocks
- replace tab characters with spaces

Address change requests on PR #1498, part 2

This set of changes fixes the files in cdf32aa to add the new function
heap_caps_get_per_task_info() with its new name and to add the line to
compile it in components/heap/component.mk.  This does not address all
the suggested changes because there are some needing further
discussion.

This commit does not include the suggested change to move the
declaration of the new function into esp_heap_caps.h because the new
function references TaskHandle_t so esp_heap_caps.h would have to
include freertos/FreeRTOS.h and freertos/task.h, but FreeRTOS.h
includes esp_heap_caps.h through two other header files which results
in compilation errors because not all of FreeRTOS.h has been read yet.

Change heap_caps_get_per_task_info() to take struct of params

In addition to moving the large number of function parameters into a
struct as the single parameter, the following changes were made:

- Clear out the totals for any prepopulated tasks so the app code
  doesn't have to do it.

- Rather than partitioning the per-task totals into a predetermined
  set of heap capabilities, take a list of <caps,mask> pairs to
  compare the caps to the heap capabilities as masked.  This lets the
  caller configure the desired partitioning, or none.

- Allow the totals array pointer or the blocks array pointer to be
  NULL to indicate not to collect that part of the information.

- In addition to returning the total space allocated by each task,
  return the number of blocks allocated by each task.

- Don't need to return the heap capabilities as part of the details
  for each block since the heap region (and therefore its
  capabilities) can be determined from the block address.

- Renamed heap_task_info.h to esp_heap_task_info.h to fit the naming
  convention, and renamed the structs for totals and block details to
  better fit the revised function name.

- Provide full Doxygen commenting for the function and parameter
  structs.

Add copyright header to new files

Merges https://github.com/espressif/esp-idf/pull/1498
2018-02-20 10:32:06 +11:00
Stephen Casner
a76d5a33c9 heap: Correct the sense of a comment 2018-02-19 09:42:40 +11:00
Angus Gratton
47aaf402b8 heap: Add heap_caps_dump() / heap_caps_dump_all() functions
Dump the structure of the heap for debugging purposes.
2017-10-20 11:38:24 +08:00
Ivan Grokhotkov
6cc8099610 Merge branch 'bugfix/malloc_failure' into 'master'
heap: Fix race condition causing malloc() to fail under some conditions

See merge request !1424
2017-10-19 21:30:26 +08:00
Angus Gratton
b0c5665f15 heap: Fix race condition causing malloc() to fail under some conditions
During a call to multi_heap_malloc(), if both these conditions were true:
- That heap only has one block large enough for the allocation
  (this is always the case if the heap is unfragmented).
- Another allocation is simultaneously occurring in the same heap.

... multi_heap_malloc() could incorrectly return NULL.

This caused IDF heap_caps_malloc() and malloc() to also fail, particularly
often if only one or two heaps had space for the allocation (otherwise
heap_caps_malloc() fails over to the next heap).
2017-10-19 16:05:00 +08:00
Angus Gratton
04188d8ec7 heap: Fix spurious heap_caps_check_integrity() errors in Comprehensive mode
Heap was not being locked before poisoning, so heap_caps_check_integrity()
would sometimes race with checking the poison bytes and print unnecessary
errors.

Details: https://esp32.com/viewtopic.php?f=2&t=3348&p=15732#p15732
2017-10-18 15:57:52 +08:00
Deomid Ryabkov
882f164e7c Fix multi_heap_get_info alias 2017-09-26 15:00:47 +01:00
Angus Gratton
76d8190444 multi_heap: Print the problem address when aborting due to heap corruption
New multi_heap code has proven effective at aborting when buffer overruns occur,
but it's currently hard to debug the stack traces from these failures.
2017-09-18 16:54:23 +10:00
Angus Gratton
1c7b8aa3a5 Heap tracing support 2017-09-07 16:32:05 +10:00
Angus Gratton
5c417963eb multi_heap: Add heap poisoning features 2017-09-07 16:32:05 +10:00
Angus Gratton
71c70cb15c heap: Refactor heap regions/capabilities out of FreeRTOS
Remove tagged heap API, rename caps_xxx to heap_caps_xxx

Also includes additional heap_caps_xxx inspection functions.
2017-07-10 17:46:03 +08:00
Angus Gratton
5ee49fd311 heap: Add new multi_heap heap implementation to replace FreeRTOS-based tagged heaps 2017-07-10 17:46:03 +08:00