When same memory is freed twice and both added to delay list
(race condition in interrupt context), it causes crash later
in mm_forcefree() when processing the delay list.
This patch adds early detection in add_delaylist() using:
1. Magic value (addr ^ 0xDEADBEEF) for O(1) fast path
2. List traversal for confirmation when magic matches
The double-free will be caught immediately with DEBUGASSERT
instead of crashing later in free_delaylist()
Changes:
- Add MM_DELAY_MAGIC and magic field to mm_delaynode_s
- Implement two-step detection in add_delaylist()
- Sync implementation across mm_heap and tlsf allocators
Signed-off-by: ligd <liguiding1@xiaomi.com>
d84c546d47