Nicolas Pitre a2011d8af9 z_heap_aligned_alloc(): avoid memory wastage ... The strategy used in z_heap_aligned_alloc() was to allocate an extra align-sized memory block for storing a pointer to the memory heap. This is wasteful in terms of memory usage when alignment is larger than a pointer width. A loop is needed to find the initial memory start when freeing it which isn't optimal either. Instead, let's have sys_heap_aligned_alloc() rewind a pointer after it is aligned to make just enough room for storing our heap reference. This way the heap reference is always located immediately before the aligned memory and any unused memory is returned to the heap. The rewind and alignment values may coincide in which case only the alignment is necessary anyway. Signed-off-by: Nicolas Pitre <npitre@baylibre.com>		2021-01-22 10:04:43 -05:00
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include	Revert "kernel: add CONFIG_ARCH_HAS_RESERVED_PAGE_FRAMES"	2021-01-22 08:39:45 -05:00
atomic_c.c	kernel: Add k_heap synchronized memory allocator	2020-04-14 10:05:55 -07:00
banner.c	kernel: init: move banner handling	2020-11-27 20:08:14 -05:00
cache_handlers.c	cache: Expand the APIs for cache flushing	2021-01-19 14:31:02 -05:00
CMakeLists.txt	kernel: add condition variables	2021-01-19 08:55:47 -05:00
compiler_stack_protect.c	tests: coverage: exclude the CODE UNREACHABLE of code coverage	2021-01-15 12:42:00 -05:00
condvar.c	kernel: add vrfy hooks to support userspace with condvar	2021-01-19 08:55:47 -05:00
device.c	power: standarize PM Kconfigs and cleanup	2020-12-09 15:18:29 -05:00
errno.c	kernel: support using thread local storage for errno	2020-10-24 10:52:00 -07:00
fatal.c	debug: coredump: remove z_ prefix for stuff used outside subsys	2021-01-21 22:08:59 -05:00
futex.c	kernel/timeout: Make timeout arguments an opaque type	2020-03-31 19:40:47 -04:00
idle.c	power: Remove power management conditionals from code	2021-01-22 09:31:20 -05:00
init.c	Revert "kernel: add page frame management"	2021-01-22 08:39:45 -05:00
Kconfig	kernel: build: Make TICKLESS_KERNEL depends on TICKLESS_CAPABLE	2021-01-21 17:20:32 -05:00
kheap.c	kernel: add k_heap_aligned_alloc	2020-12-08 13:21:26 -05:00
mailbox.c	kernel: Remove legacy mem_pool usage	2020-12-07 21:50:14 -05:00
mem_domain.c	tests: coverage: exclude the CODE UNREACHABLE of code coverage	2021-01-15 12:42:00 -05:00
mem_slab.c	kernel: mem_slab: Optimize mem_slab_free	2020-12-07 11:36:48 +01:00
mempool.c	z_heap_aligned_alloc(): avoid memory wastage	2021-01-22 10:04:43 -05:00
mmu.c	Revert "kernel: add page frame management"	2021-01-22 08:39:45 -05:00
msg_q.c	doc: Clarify semantics of k_msgq_put	2020-09-23 13:21:07 -05:00
mutex.c	kernel: Cleanup logger setup in kernel files	2020-11-27 09:56:34 -05:00
pipes.c	kernel: Remove legacy mem_pool usage	2020-12-07 21:50:14 -05:00
poll.c	kernel: poll: remove unreachable code	2021-01-18 11:02:59 -05:00
queue.c	kernel/queue: fix queue append/get race	2020-10-28 17:01:41 +01:00
sched.c	tests: coverage: exclude the CODE UNREACHABLE of code coverage	2021-01-15 12:42:00 -05:00
sem.c	device: Const-ify all device driver instance pointers	2020-09-02 13:48:13 +02:00
smp.c	tests: coverage: exclude the CODE UNREACHABLE of code coverage	2021-01-15 12:42:00 -05:00
stack.c	kernel: stack: fix stack_push spinlock and return	2020-10-07 17:10:36 -04:00
system_work_q.c	device: Const-ify all device driver instance pointers	2020-09-02 13:48:13 +02:00
thread_abort.c	tests: coverage: exclude the CODE UNREACHABLE of code coverage	2021-01-15 12:42:00 -05:00
thread.c	kernel: const-qualify objects used to calculate delay values	2021-01-22 08:05:26 -06:00
timeout.c	kernel: Remove CONFIG_LEGACY_TIMEOUT_API	2021-01-14 21:33:16 -05:00
timer.c	kernel: const-qualify objects used to calculate delay values	2021-01-22 08:05:26 -06:00
userspace_handler.c	userspace: update k_object API to support immutable objects	2020-09-02 13:48:13 +02:00
userspace.c	kernel: userspace: aligned memory allocation for dynamic objects	2021-01-13 09:43:55 -08:00
version.c	zephyr: replace zephyr integer types with C99 types	2020-06-08 08:23:57 -05:00
work_q.c	kernel: Remove CONFIG_LEGACY_TIMEOUT_API	2021-01-14 21:33:16 -05:00
xip.c	linker: arm: Add cortex_m itcm section	2021-01-15 14:51:20 +01:00