Do unmap_library after all dependent libraries are closed.

Test: local test pass & libctest pass
Issue: #I7SRPDw
Signed-off-by: Nguzhihao4 <guzhihao4@huawei.com>
Change-Id: Ie27666dfb07e85d7123150ba26797626bbc46c79

Merge pull request !1021 from zzulilyw/master

Issue: https://gitee.com/openharmony/xts_acts/issues/I7FAYP

test: xts ActsToolChainTest
Signed-off-by: Nzzulilyw <liuyawei10@huawei.com>

Merge pull request !1008 from zzulilyw/master

Issue: https://gitee.com/openharmony/third_party_musl/issues/I7OSP8

test: libc-test
Signed-off-by: Nzzulilyw <liuyawei10@huawei.com>

Merge pull request !1006 from fangting/master

Merge pull request !1016 from yinchuang/remove_lto_tdd

Merge pull request !978 from qijinquan/sem_timedwait

Issue:I7PIK2
Signed-off-by: Nyinchuang <yinchuang@huawei.com>
Test:libctest

Merge pull request !1012 from yinchuang/printf_bug

Signed-off-by: Nfangting <fangting12@huawei.com>

Merge pull request !1010 from zzulilyw/master

Merge pull request !1011 from fangting/master

Issue:I7K19J
test:lib-test, benchmark
Signed-off-by: Nqijinquan <qijinquan@kaihong.com>

Merge pull request !1003 from Wang Yaofeng/code_style_fix

Issue:I7OZJI
Signed-off-by: Nyinchuang <yinchuang@huawei.com>
Test:libctest

Merge pull request !993 from 徐杰/pr_yafei_ipv6_0720

Issue: I7ONK3
Signed-off-by: Nfangting <fangting12@huawei.com>

Issue: https://gitee.com/openharmony/third_party_musl/issues/I7OX5Y

test: xts ActsToolChainTest
Signed-off-by: zzulilyw <378305181@qq.com>

Issue:https://e.gitee.com/open_harmony/dashboard?issue=I7MML0Signed-off-by: N徐杰 <xujie223@huawei.com>
Change-Id: I265a86f5ee82057a16bba66839cbb0dbe91ea001

Issue:#I7OE3W
Signed-off-by: Nfangting <fangting12@huawei.com>

Merge pull request !1004 from yinchuang/prctl_tag

Merge pull request !1002 from zzulilyw/master

Issue:I7OE01
Signed-off-by: Nyinchuang <yinchuang@huawei.com>
test:libctest

Merge pull request !985 from 李涛/fileno_unlocked

Issue: https://gitee.com/openharmony/third_party_musl/issues/I7NWEI

test: libc-test
Signed-off-by: zzulilyw <378305181@qq.com>

Merge pull request !1001 from yinchuang/opt_sscanf

Issue:I7NQ5W
Signed-off-by: Nyinchuang <yinchuang@huawei.com>
Test:libctest

Issue:#I7O24N
Test:libc-test
Signed-off-by: Nrobottoy <wangyaofeng.wang@huawei.com>
Change-Id: I431b30819011744e3bd5525fb0ccb8c9e06d990a

Merge pull request !991 from 李涛/mutex_rwlock_init

Merge pull request !1000 from yinchuang/opt_strtod

Merge pull request !995 from Wang Yaofeng/vsnprintf_opt

Issue:I7NJU1
Signed-off-by: Nyinchuang <yinchuang@huawei.com>
Test:libctest

Merge pull request !989 from 李涛/pthread_cond_init

Issue: I7MRBU
Test: libc-test
Change-Id: Ic71d77e6fa4df22faa54d85e9e8997b413a6b0dc
Signed-off-by: Nrobottoy <wangyaofeng.wang@huawei.com>

Merge pull request !977 from wangchen/0710_m

Merge pull request !971 from xxlight/dev_musl

Merge pull request !998 from yinchuang/add_path_for_linker

Issue:I7NDW
Signed-off-by: Nyinchuang <yinchuang@huawei.com>
Test:libtest