Commit graph

4 commits

Author SHA1 Message Date
Deomid Ryabkov
712bd1d773 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 16:35:47 +10:00
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
Angus Gratton
959462ffb6 multi_heap_poisoning: Use MULTI_HEAP_STDERR_PRINTF (ets_printf) to print heap errors
Needed because normal printf() can trigger a malloc() (for standard stream locks) which
then re-triggers this check.
2017-09-18 16:54:28 +10:00
Angus Gratton
5c417963eb multi_heap: Add heap poisoning features 2017-09-07 16:32:05 +10:00