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🆕 用户态解析键盘扫描码

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This commit is contained in:
fslongjin
2022-05-21 21:49:56 +08:00
parent b9c4efcb0f
commit e6108602df
13 changed files with 626 additions and 439 deletions
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3
user/libs/libc/malloc.c
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@ -367,12 +367,13 @@ static void release_brk()
*
* @param ptr 堆内存的指针
*/
void free(void *ptr)
void free(void *ptr)
{
// 找到结点（此时prev和next都处于未初始化的状态）
malloc_mem_chunk_t *ck = (malloc_mem_chunk_t *)((uint64_t)ptr - sizeof(uint64_t));
// printf("free(): addr = %#018lx\t len=%#018lx\n", (uint64_t)ck, ck->length);
count_last_free_size += ck->length;
malloc_insert_free_list(ck);
if (count_last_free_size > PAGE_2M_SIZE)