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| author | Lukasz Majewski <lukma@denx.de> | 2020-01-15 10:14:23 +0100 |
|---|---|---|
| committer | Lukasz Majewski <lukma@denx.de> | 2020-02-05 00:10:16 +0100 |
| commit | f1c314d27552eb6ce5db23b98b293696925741d5 (patch) | |
| tree | a27ab3a25e978690b8c154b8dd84eb2315ca7b06 /include/time.h | |
| parent | 286a01d7ab53ee813907d4fde7c0f0a0d53e3c17 (diff) | |
| download | glibc-f1c314d27552eb6ce5db23b98b293696925741d5.tar.gz glibc-f1c314d27552eb6ce5db23b98b293696925741d5.tar.xz glibc-f1c314d27552eb6ce5db23b98b293696925741d5.zip | |
y2038: linux: Provide __timespec_get64 implementation
This patch provides new instance of Linux specific timespec_get.c file placed in ./sysdeps/unix/sysv/linux/. When compared to this file version from ./time directory, it provides __timespec_get64 explicit 64 bit function for getting 64 bit time in the struct __timespec64 (for compilation using C11 standard). Moreover, a 32 bit version - __timespec_get internally uses __timespec_get64. The __timespec_get is now supposed to be used on systems still supporting 32 bit time (__TIMESIZE != 64) - hence the necessary conversion to 32 bit struct timespec. Internally the timespec_get uses __clock_gettime64. This patch is necessary for having architectures with __WORDSIZE == 32 Y2038 safe. 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 proper usage of both __timespec_get64 and __timespec_get. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'include/time.h')
| -rw-r--r-- | include/time.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/time.h b/include/time.h index f712a0e167..97d17c171a 100644 --- a/include/time.h +++ b/include/time.h @@ -254,6 +254,7 @@ extern double __difftime (time_t time1, time_t time0); #if __TIMESIZE == 64 # define __clock_nanosleep_time64 __clock_nanosleep # define __clock_gettime64 __clock_gettime +# define __timespec_get64 __timespec_get #else extern int __clock_nanosleep_time64 (clockid_t clock_id, int flags, const struct __timespec64 *req, @@ -261,6 +262,8 @@ extern int __clock_nanosleep_time64 (clockid_t clock_id, libc_hidden_proto (__clock_nanosleep_time64) extern int __clock_gettime64 (clockid_t clock_id, struct __timespec64 *tp); libc_hidden_proto (__clock_gettime64) +extern int __timespec_get64 (struct __timespec64 *ts, int base); +libc_hidden_proto (__timespec_get64) #endif /* Use in the clock_* functions. Size of the field representing the |