glibc/sysvipc, branch master

Always define __USE_TIME_BITS64 when 64 bit time_t is used

2024-04-02T18:28:36Z

It was raised on libc-help [1] that some Linux kernel interfaces expect the libc to define __USE_TIME_BITS64 to indicate the time_t size for the kABI. Different than defined by the initial y2038 design document [2], the __USE_TIME_BITS64 is only defined for ABIs that support more than one time_t size (by defining the _TIME_BITS for each module). The 64 bit time_t redirects are now enabled using a different internal define (__USE_TIME64_REDIRECTS). There is no expected change in semantic or code generation. Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu, and arm-linux-gnueabi [1] https://sourceware.org/pipermail/libc-help/2024-January/006557.html [2] https://sourceware.org/glibc/wiki/Y2038ProofnessDesign Reviewed-by: DJ Delorie

Update copyright dates with scripts/update-copyrights

2024-01-01T18:53:40Z

Fix all the remaining misspellings -- BZ 25337

2023-06-02T01:39:48Z

Update copyright dates with scripts/update-copyrights

2023-01-06T21:14:39Z

Update copyright dates with scripts/update-copyrights

2022-01-01T19:40:24Z

I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines

Remove "Contributed by" lines

2021-09-03T16:36:44Z

We stopped adding "Contributed by" or similar lines in sources in 2012 in favour of git logs and keeping the Contributors section of the glibc manual up to date. Removing these lines makes the license header a bit more consistent across files and also removes the possibility of error in attribution when license blocks or files are copied across since the contributed-by lines don't actually reflect reality in those cases. Move all "Contributed by" and similar lines (Written by, Test by, etc.) into a new file CONTRIBUTED-BY to retain record of these contributions. These contributors are also mentioned in manual/contrib.texi, so we just maintain this additional record as a courtesy to the earlier developers. The following scripts were used to filter a list of files to edit in place and to clean up the CONTRIBUTED-BY file respectively. These were not added to the glibc sources because they're not expected to be of any use in future given that this is a one time task: https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02 Reviewed-by: Carlos O'Donell

Linux: Cleanups after librt move

2021-06-28T07:51:01Z

librt.so is no longer installed for PTHREAD_IN_LIBC, and tests are not linked against it. $(librt) is introduced globally for shared tests that need to be linked for both PTHREAD_IN_LIBC and !PTHREAD_IN_LIBC. GLIBC_PRIVATE symbols that were needed during the transition are removed again. Reviewed-by: Carlos O'Donell

linux: Only use 64-bit syscall if required for semtimedop

2021-06-22T15:09:52Z

For !__ASSUME_TIME64_SYSCALLS there is no need to issue a 64-bit syscall if the provided timeout fits in a 32-bit one. The 64-bit usage should be rare since the timeout is a relative one. Checked on i686-linux-gnu on a 4.15 kernel and on a 5.11 kernel (with and without --enable-kernel=5.1) and on x86_64-linux-gnu. Reviewed-by: Lukasz Majewski

Use 64 bit time_t stat internally

2021-06-22T15:09:52Z

For the legacy ABI with supports 32-bit time_t it calls the 64-bit time directly, since the LFS symbols calls the 64-bit time_t ones internally. Checked on i686-linux-gnu and x86_64-linux-gnu. Reviewed-by: Lukasz Majewski

y2038: Add test coverage

2021-06-15T13:42:11Z

It is enabled through a new rule, tests-y2038, which is built only when the ABI supports the comapt 64-bit time_t (defined by the header time64-compat.h, which also enables the creation of the symbol Version for Linux). It means the tests are not built for ABI which already provide default 64-bit time_t. The new rule already adds the required LFS and 64-bit time_t compiler flags. The current coverage is: * libc: - adjtime tst-adjtime-time64 - adjtimex tst-adjtimex-time64 - clock_adjtime tst-clock_adjtime-time64 - clock_getres tst-clock-time64, tst-cpuclock1-time64 - clock_gettime tst-clock-time64, tst-clock2-time64, tst-cpuclock1-time64 - clock_nanosleep tst-clock_nanosleep-time64, tst-cpuclock1-time64 - clock_settime tst-clock2-time64 - cnd_timedwait tst-cnd-timedwait-time64 - ctime tst-ctime-time64 - ctime_r tst-ctime-time64 - difftime tst-difftime-time64 - fstat tst-stat-time64 - fstatat tst-stat-time64 - futimens tst-futimens-time64 - futimes tst-futimes-time64 - futimesat tst-futimesat-time64 - fts_* tst-fts-time64 - getitimer tst-itimer-timer64 - getrusage - gettimeofday tst-clock_nanosleep-time64 - glob / globfree tst-gnuglob64-time64 - gmtime tst-gmtime-time64 - gmtime_r tst-gmtime-time64 - lstat tst-stat-time64 - localtime tst-y2039-time64 - localtime_t tst-y2039-time64 - lutimes tst-lutimes-time64 - mktime tst-mktime4-time64 - mq_timedreceive tst-mqueue{1248}-time64 - mq_timedsend tst-mqueue{1248}-time64 - msgctl test-sysvmsg-time64 - mtx_timedlock tst-mtx-timedlock-time64 - nanosleep tst-cpuclock{12}-time64, tst-mqueue8-time64, tst-clock-time64 - nftw / ftw ftwtest-time64 - ntp_adjtime tst-ntp_adjtime-time64 - ntp_gettime tst-ntp_gettime-time64 - ntp_gettimex tst-ntp_gettimex-time64 - ppoll tst-ppoll-time64 - pselect tst-pselect-time64 - pthread_clockjoin_np tst-join14-time64 - pthread_cond_clockwait tst-cond11-time64 - pthread_cond_timedwait tst-abstime-time64 - pthread_mutex_clocklock tst-abstime-time64 - pthread_mutex_timedlock tst-abstime-time64 - pthread_rwlock_clockrdlock tst-abstime-time64, tst-rwlock14-time64 - pthread_rwlock_clockwrlock tst-abstime-time64, tst-rwlock14-time64 - pthread_rwlock_timedrdlock tst-abstime-time64, tst-rwlock14-time64 - pthread_rwlock_timedwrlock tst-abstime-time64, tst-rwlock14-time64 - pthread_timedjoin_np tst-join14-time64 - recvmmsg tst-cancel4_2-time64 - sched_rr_get_interval tst-sched_rr_get_interval-time64 - select tst-select-time64 - sem_clockwait tst-sem5-time64 - sem_timedwait tst-sem5-time64 - semctl test-sysvsem-time64 - semtimedop test-sysvsem-time64 - setitimer tst-mqueue2-time64, tst-itimer-timer64 - settimeofday tst-settimeofday-time64 - shmctl test-sysvshm-time64 - sigtimedwait tst-sigtimedwait-time64 - stat tst-stat-time64 - thrd_sleep tst-thrd-sleep-time64 - time tst-mqueue{1248}-time64 - timegm tst-timegm-time64 - timer_gettime tst-timer4-time64 - timer_settime tst-timer4-time64 - timerfd_gettime tst-timerfd-time64 - timerfd_settime tst-timerfd-time64 - timespec_get tst-timespec_get-time64 - timespec_getres tst-timespec_getres-time64 - utime tst-utime-time64 - utimensat tst-utimensat-time64 - utimes tst-utimes-time64 - wait3 tst-wait3-time64 - wait4 tst-wait4-time64 * librt: - aio_suspend tst-aio6-time64 - mq_timedreceive tst-mqueue{1248}-time64 - mq_timedsend tst-mqueue{1248}-time64 - timer_gettime tst-timer4-time64 - timer_settime tst-timer4-time64 * libanl: - gai_suspend Reviewed-by: Lukasz Majewski Reviewed-by: Carlos O'Donell Tested-by: Carlos O'Donell