Merge pull request !448 from dhy308/branch_fix_bug1

Merge pull request !419 from dhy308/branch_rm006

Signed-off-by: Nganlan <tony.gan@huawei.com>

Signed-off-by: Nganlan <tony.gan@huawei.com>

Merge pull request !447 from dhy308/branch_rm002

Signed-off-by: Nganlan <tony.gan@huawei.com>

Merge pull request !418 from dhy308/branch_rm010

Merge pull request !441 from klcf0220/master

Merge pull request !442 from ericlee/master

This reverts commit 9aeff21e.
Signed-off-by: Nliyueric <liyu1@huawei.com>

Signed-off-by: Nzengchunliang <zengchunliang3@huawei.com>

Merge pull request !422 from 王家辉/master

Merge pull request !427 from klcf0220/master

Signed-off-by: Nzengchunliang <zengchunliang3@huawei.com>

Signed-off-by: Nwangjiahui <wangjiahui27@huawei.com>

Merge pull request !437 from dhy308/branch_musl_hilog

Signed-off-by: Nganlan <tony.gan@huawei.com>

Merge pull request !434 from liwentao/update_toolchain

Merge pull request !393 from Far/master

Signed-off-by: Nliwentao <liwentao20@huawei.com>
Change-Id: Ib77bc24ba2442ad345d25757f34a0a314fcb385c

1. 指针混淆:
   对空闲chunk的双向链表指针next、prev进行混淆。具体为将该指针与一个key做异或操作。
   不同的bin拥有不同的key，key通过随机数生成器生成。
2. safe unlink:
   在unbin操作时校验双向链表的有效性，即检查双向链表中前一项和后一项的指向当前chunk
   的指针是否正常，否则终止进程。

这两个功能均可通过MALLOC_FREELIST_HARDENED宏开关
这个宏可以通过编译框架直接开关（在编译命令后增加 --gn-args "musl_secure_level=1"打开）

Change-Id: I05fd4404aeebcb396c8471f181a30305fb9dbe74
Signed-off-by: NFar <yesiyuan2@huawei.com>

Merge pull request !413 from maosiping/master

The appspawn fork a hap process and set a flag(0 or 1) to the libnetsys_client,
Judge whether the flag in libnetsys_client is 1 in the socket() and name_from_dns_search() interface,
Do not create a AF_INET or AF_INET6 socket or query DNS if the flag is 0
Signed-off-by: Nmaosiping <maosiping@huawei.com>

Merge pull request !429 from Caoruihong/fix_asan_dlopen_deadlock

Signed-off-by: Nganlan <tony.gan@huawei.com>

Merge pull request !424 from Zhaotianyu/20220725iccarm_FILE

Merge pull request !415 from hhj/new_dlns_get

Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: Ide90ef9ddbd5f7ed70e54682e5bde36443f734f6

This reverts commit 07d61e4e.
Signed-off-by: NCaoruihong <crh.cao@huawei.com>

Merge pull request !417 from dhy308/branch_musl_hilog

Signed-off-by: Nganlan <tony.gan@huawei.com>

Merge pull request !425 from Caoruihong/readme_for_musl_linker_config

Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: I1f87c84d08663308be8fde806e80f737f279a93b

Merge pull request !409 from yinjiaming/master

close: #I5ISHP
Signed-off-by: Narvinzzz <zhaotianyu9@huawei.com>
Change-Id: Ia031b6e836a78108e2dd992135cda3d406577ee0

Merge pull request !346 from fangting10/master

Need one interface to get dlns, and can set default parent for new namespace. add dlns_create2 interface which caller can create namespace without inherit
from default namespace.

test: creat2 without flags
Signed-off-by: Nhuanghuijin <huanghuijin@huawei.com>

Signed-off-by: Nfangting <fangting10@huawei.com>

Merge pull request !410 from 王家辉/branch_issue_0722