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kasan: Implementation of Kasan based on software tags.

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Currently, only aarch64 is supported

Signed-off-by: wangmingrong <wangmingrong@xiaomi.com>
This commit is contained in:
wangmingrong
2024-03-14 16:40:52 +08:00
committed by Xiang Xiao
parent 9c6bed4b00
commit ae3facda53
17 changed files with 394 additions and 51 deletions
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mm/mempool/mempool.c
+4 -4
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@@ -406,7 +406,7 @@ retry:
pool->nalloc++;
spin_unlock_irqrestore(&pool->lock, flags);
kasan_unpoison(blk, pool->blocksize);
blk = kasan_unpoison(blk, pool->blocksize);
#ifdef CONFIG_MM_FILL_ALLOCATIONS
memset(blk, MM_ALLOC_MAGIC, pool->blocksize);
#endif
@@ -648,7 +648,7 @@ int mempool_deinit(FAR struct mempool_s *pool)
{
blk = (FAR sq_entry_t *)((FAR char *)blk - count * blocksize);
kasan_unpoison(blk, count * blocksize + sizeof(sq_entry_t));
blk = kasan_unpoison(blk, count * blocksize + sizeof(sq_entry_t));
pool->free(pool, blk);
if (pool->expandsize >= blocksize + sizeof(sq_entry_t))
{
@@ -658,8 +658,8 @@ int mempool_deinit(FAR struct mempool_s *pool)
if (pool->ibase)
{
kasan_unpoison(pool->ibase,
pool->interruptsize / blocksize * blocksize);
pool->ibase = kasan_unpoison(pool->ibase,
pool->interruptsize / blocksize * blocksize);
pool->free(pool, pool->ibase);
}