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| author | Lukasz Majewski <lukma@denx.de> | 2020-04-22 10:49:39 +0200 |
|---|---|---|
| committer | Lukasz Majewski <lukma@denx.de> | 2020-05-20 01:09:16 +0200 |
| commit | 4c4fc04826c2e02635c65163efb1244148735c41 (patch) | |
| tree | 74405872e21b54ea0e9eb3e841844683075fcb25 /sysdeps/unix/sysv/linux/include | |
| parent | 5613afe9e3dff54b10e4850804cd574e8c420e3d (diff) | |
| download | glibc-4c4fc04826c2e02635c65163efb1244148735c41.tar glibc-4c4fc04826c2e02635c65163efb1244148735c41.tar.gz glibc-4c4fc04826c2e02635c65163efb1244148735c41.tar.bz2 glibc-4c4fc04826c2e02635c65163efb1244148735c41.zip | |
y2038: linux: Provide __ntp_gettimex64 implementation
This patch provides new __ntp_gettimex64 explicit 64 bit function for getting
time parameters via NTP interface.
The call to __adjtimex in __ntp_gettime64 function has been replaced with
direct call to __clock_adjtime64 syscall, to simplify the code.
Moreover, a 32 bit version - __ntp_gettimex has been refactored to internally
use __ntp_gettimex64.
The __ntp_gettimex is now supposed to be used on systems still supporting 32
bit time (__TIMESIZE != 64) - hence the necessary conversions between struct
ntptimeval and 64 bit struct __ntptimeval64.
Build tests:
./src/scripts/build-many-glibcs.py glibcs
Run-time tests:
- Run specific tests on ARM/x86 32bit systems (qemu):
https://github.com/lmajewski/meta-y2038 and run tests:
https://github.com/lmajewski/y2038-tests/commits/master
Above tests were performed with Y2038 redirection applied as well as without to
test the proper usage of both __ntp_gettimex64 and __ntp_gettimex.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/unix/sysv/linux/include')
| -rw-r--r-- | sysdeps/unix/sysv/linux/include/sys/timex.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/include/sys/timex.h b/sysdeps/unix/sysv/linux/include/sys/timex.h index ef53515803..335a38c3bd 100644 --- a/sysdeps/unix/sysv/linux/include/sys/timex.h +++ b/sysdeps/unix/sysv/linux/include/sys/timex.h @@ -34,6 +34,7 @@ libc_hidden_proto (__adjtimex) # define ___adjtimex64 ___adjtimex # define __ntptimeval64 ntptimeval # define __ntp_gettime64 __ntp_gettime +# define __ntp_gettimex64 __ntp_gettimex # else struct __timex64 @@ -94,6 +95,8 @@ struct __ntptimeval64 }; extern int __ntp_gettime64 (struct __ntptimeval64 *ntv); libc_hidden_proto (__ntp_gettime64) +extern int __ntp_gettimex64 (struct __ntptimeval64 *ntv); +libc_hidden_proto (__ntp_gettimex64) # endif |