Description: rollback dylink disable

Issue:https://gitee.com/openharmony/third_party_musl/issues/I7DHP1

TEST: none
Signed-off-by: Nwangchen <wangchen240@huawei.com>

Description: Add an interface to fuse the dylink interface

Issue: https://e.gitee.com/open_harmony/dashboard?issue=I78F4J

TEST: run a custom hap in m40, Unable to use dlns
Signed-off-by: Nwangchen <wangchen240@huawei.com>

描述：修改third_party_musl下的config

Issue： https://gitee.com/openharmony/build/issues/I77O24?from=project-issue
测试：
1.设备启动正常
2.设备应用使用无异常
3.dmesg/hilog无明显错误信息
Signed-off-by: Nchengjinsong2 <chengjinsong2@huawei.com>

Issue: I79VSS
Test: libc-test,benchmark,POSIX xts
Change-Id: I07c517702a977895e759aab787167e9e3521da76
Signed-off-by: Nrobottoy <wangyaofeng.wang@huawei.com>

2. Modify macro MUSL_FORTIFY_SOURCE to _FORTIFY_SOURCE so it can work
   correctly

Issue:#I70BYR

Test: pass libc-test
Signed-off-by: Nhaotuo <haotuo@huawei.com>
Change-Id: If4d2dd64284d432dcc8dd3d8de9fd7f198a27e82

Issue:I78NRZ
Signed-off-by: Nfangting <fangting12@huawei.com>

2. Optimize syscall_cp 2 syscall because pthread_cancel not available on ohos

Issue:#I76K30

Test: libc test && benchmark
Signed-off-by: Nhaotuo <haotuo@huawei.com>
Change-Id: I9fff69b3d51337fbf2f1545ea47af871b544d9cc

issue:#I79OV7
Test:libc-test
Signed-off-by: Nlutao <lutao31@huawei.com>

Issue:I799HR
Test:libc-test
Signed-off-by: Nrobottoy <wangyaofeng.wang@huawei.com>

Issue:I77Z1V
Signed-off-by: Nyinchuang <yinchuang@huawei.com>
Test: Build & Boot Device

Signed-off-by: Nchengjinsong2 <chengjinsong2@huawei.com>

Release signal stack guard separately
Issue: #I73EUD
Test: Libctest pass & mmap check noleak
Signed-off-by: Nguzhihao4 <guzhihao4@huawei.com>
Change-Id: Idca65a1c87898ab3cbb0e84e1c39f0772dad89cc

Signed-off-by: Nchengjinsong2 <chengjinsong2@huawei.com>

Issue:I70LQ0
Signed-off-by: Nyinchuang <yinchuang@huawei.com>
Test:Build & Boot Device

Original fwrite call sys_writev to sync user buffer &&
file buffer to disk at same time, but user buffer may samll than file
buffer, that may reduce I/O throughout.
fix freadx internal api in fmemopen/stdin/freopen

Issue:I73VQ3
Test:libc-test, benchmark
Signed-off-by: Nrobottoy <wangyaofeng.wang@huawei.com>
Change-Id: Ic7315e0a5a0f5f18e3c3f3dd8aecbdc9af1290db

Issue: #I73MBP

Test: libc test & benchmark test
Signed-off-by: Nhaotuo <haotuo@huawei.com>
Change-Id: Ibf8667e46c5199e5b7c3039029efb5b9daacc836

Use static link of pandafile and pandabase
Issue:#I73S31
Test:Build & Boot devices
Signed-off-by: zhengkaijie <2658880633@qq.com>

Issue:I73RD2
Signed-off-by: Nyinchuang <yinchuang@huawei.com>
Test:Build & Boot Device

Original stdio read use readv as default syscall,calling vfs_read twice will
reduce I/O throughout, use syscall read instead with buffer if possible

Issue:I70LQ0
Test: libc-test, benchmark
Signed-off-by: Nrobottoy <wangyaofeng.wang@huawei.com>
Change-Id: I2e5c0298fcd665edb3228ca400ee77fbf25a298c

描述：sigchain重发信号当SIG_DFL时

Issue：https://gitee.com/openharmony/hiviewdfx_faultloggerd/issues/I6P48B
测试：运行libc-test通过
Signed-off-by: Nzengchunliang <zengchunliang3@huawei.com>

Issue:I72BDA
Signed-off-by: Nyinchuang <yinchuang@huawei.com>
Test: Build & Boot Device

Before this fix, every call to libnetsys_client.z.so's functions involves
loading the lib, searching symbols and unloading the lib. Assuming debugging a
process with lldb, it will hurt the debugging performance because lldb stops at
dlopen and dlcose (lldb inserts internal breakpoints to know which shared
library is loaded or unloaded). It is fixed by storing the handle to the lib and
function pointers globally.

Issue: I6XDBW
Test: passed most test cases of libc-test with 4 anticipated cases failed
Signed-off-by: Nhongbinj <jinhongbin2@huawei.com>

Uses sigaltstack to get current signal stack
There is no need to record in pthread structure

Issue: #I716J1
Signed-off-by: Nguzhihao4 <guzhihao4@huawei.com>
Change-Id: I22298f9bf1f7a55a10002fba70f9e05ba6b14979

Issue:I6YMRJ
Signed-off-by: Nyinchuang <yinchuang@huawei.com>
Test:Build & Boot Device

Issue:I6XGC4
Signed-off-by: Nfangting <fangting12@huawei.com>

add lldb startup debug prop

https://gitee.com/openharmony/startup_init_lite/issues/I6X0LS?from=project-issue

not involving test cases

Change-Id: Ife6888c450dfaa894ff3f4e551c99f32dfa349c4
Signed-off-by: Nhongtao <hongtao11@huawei.com>

Issue:I6WG4X
Signed-off-by: Nyinchuang <yinchuang@huawei.com>
Test:Build && Boot Device

Add define to differentice between gn and cmake.

https://gitee.com/openharmony/third_party_musl/issues/I6WT07Signed-off-by: Nliuyaning <liuyaning7@huawei.com>

Issue: #I6UV93

Test: codecheck
Signed-off-by: Narvinzzz <zhaotianyu9@huawei.com>
Change-Id: I0f62d39c6e8cf691f9357d775b70554c6693c61a

Issue:I6UKTB
Signed-off-by: Nyinchuang <yinchuang@huawei.com>
Test:Build & Boot devices

Use atexit to register some callback from dso, but there is no
unregister interface. After this dso closed, this callback in
atexit callback chain is invalidate. This workround will save
the dso that the callback come from, then when dso closed, the
relative callbacks would cleared.

Issue： #I6UEZQ
Test：register atexit cb, then dlclose this dso
Signed-off-by: Nhhj <huanghuijin@huawei.com>
Change-Id: I0dfc15366dd51bbe677b9700131fbaf57622499c

 Issue: #I6U3D6
 Test: cfi demo pass
Signed-off-by: Narvinzzz <zhaotianyu9@huawei.com>
Change-Id: Ia9dbfdf18952b614cfed4a97e6366ee9cb8dedce

Issue:I6SL6I
Signed-off-by: Nyinchuang <yinchuang@huawei.com>

    Issue: I6HRVC
    Test: Build & Boot Devices
Signed-off-by: Ndhy308 <tony.gan@huawei.com>

Description: netsys should be enough to determine the network status and default dns is setting by the product instead of libc

Issue: https://gitee.com/openharmony/third_party_musl/issues/I6PCEM?from=project-issue
Test: libc-test pass
Signed-off-by: Nliwentao <liwentao20@huawei.com>

Change-Id: I39bdb98929bbc36b69c2b12f5bf2532be2aa3fe8

Issue: I6NO46

Test: Pass: 1146/1156
Signed-off-by: Nlutao <lutao31@huawei.com>

Issue：I6L2A1
Test：no new error reported in libc-test
Signed-off-by: NL_WeiHui <liweihui3@huawei.com>

Issue：I6L2A1
Test：no new error reported in libc-test
Signed-off-by: NL_WeiHui <liweihui3@huawei.com>

Fix codecheck warning for building

Issue:#I6EAWP
Test: Build & Boot devices
Signed-off-by: Nliyufan <liyufan5@huawei.com>

Signed-off-by: Nliweihui <liweihui3@huawei.com>