glibc/sysdeps/unix/sysv/linux/include/sys, branch master

Update copyright dates with scripts/update-copyrights

2024-01-01T18:53:40Z

Update copyright dates with scripts/update-copyrights

2023-01-06T21:14:39Z

clock_adjtime: Use __nonnull to avoid null pointer

2022-05-05T12:18:04Z

clock_adjtime()/clock_adjtime64() Add __nonnull((2)) to avoid null pointer access. Link: https://sourceware.org/bugzilla/show_bug.cgi?id=27662 Link: https://sourceware.org/bugzilla/show_bug.cgi?id=29084 Signed-off-by: Xiaoming Ni Reviewed-by: Siddhesh Poyarekar

ntp_xxxtimex: Use __nonnull to avoid null pointer

2022-05-05T12:18:04Z

ntp_gettime() ntp_gettime64() ntp_gettimex() ntp_gettimex64() ntp_adjtime() Add __nonnull((1)) to avoid null pointer access. Link: https://sourceware.org/bugzilla/show_bug.cgi?id=27662 Link: https://sourceware.org/bugzilla/show_bug.cgi?id=29084 Signed-off-by: Xiaoming Ni Reviewed-by: Siddhesh Poyarekar

adjtimex/adjtimex64: Use __nonnull to avoid null pointer

2022-05-05T12:18:04Z

Add __nonnull((1)) to the adjtimex()/adjtimex64() function declaration to avoid null pointer access. Link: https://sourceware.org/bugzilla/show_bug.cgi?id=27662 Link: https://sourceware.org/bugzilla/show_bug.cgi?id=29084 Signed-off-by: Xiaoming Ni Reviewed-by: Siddhesh Poyarekar

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

y2038: Add support for 64-bit time on legacy ABIs

2021-06-15T13:42:11Z

A new build flag, _TIME_BITS, enables the usage of the newer 64-bit time symbols for legacy ABI (where 32-bit time_t is default). The 64 bit time support is only enabled if LFS (_FILE_OFFSET_BITS=64) is also used. Different than LFS support, the y2038 symbols are added only for the required ABIs (armhf, csky, hppa, i386, m68k, microblaze, mips32, mips64-n32, nios2, powerpc32, sparc32, s390-32, and sh). The ABIs with 64-bit time support are unchanged, both for symbol and types redirection. On Linux the full 64-bit time support requires a minimum of kernel version v5.1. Otherwise, the 32-bit fallbacks are used and might results in error with overflow return code (EOVERFLOW). The i686-gnu does not yet support 64-bit time. This patch exports following rediretions to support 64-bit time: * libc: adjtime adjtimex clock_adjtime clock_getres clock_gettime clock_nanosleep clock_settime cnd_timedwait ctime ctime_r difftime fstat fstatat futimens futimes futimesat getitimer getrusage gettimeofday gmtime gmtime_r localtime localtime_r lstat_time lutimes mktime msgctl mtx_timedlock nanosleep nanosleep ntp_gettime ntp_gettimex ppoll pselec pselect pthread_clockjoin_np pthread_cond_clockwait pthread_cond_timedwait pthread_mutex_clocklock pthread_mutex_timedlock pthread_rwlock_clockrdlock pthread_rwlock_clockwrlock pthread_rwlock_timedrdlock pthread_rwlock_timedwrlock pthread_timedjoin_np recvmmsg sched_rr_get_interval select sem_clockwait semctl semtimedop sem_timedwait setitimer settimeofday shmctl sigtimedwait stat thrd_sleep time timegm timerfd_gettime timerfd_settime timespec_get utime utimensat utimes utimes wait3 wait4 * librt: aio_suspend mq_timedreceive mq_timedsend timer_gettime timer_settime * libanl: gai_suspend Reviewed-by: Lukasz Majewski Reviewed-by: Carlos O'Donell Tested-by: Carlos O'Donell

Update copyright dates with scripts/update-copyrights

2021-01-02T20:17:34Z

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 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master

linux: Add time64 semtimedop support

2020-09-11T17:42:05Z

Either the __NR_semtimedop_time64 (for 32-bit) or the __NR_semtimedop (for 64-bit) syscall is used as default. The 32-bit fallback is used iff __ASSUME_TIME64_SYSCALLS is not defined, which assumes the kernel ABI provides either __NR_ipc or __NR_semtimeop (for 32-bit time_t). Checked on x86_64-linux-gnu and i686-linux-gnu (on 5.4 and on 4.15 kernel). Reviewed-by: Alistair Francis

sysv: linux: Add 64-bit time_t variant for shmctl

2020-07-09T15:05:47Z

To provide a y2038 safe interface a new symbol __shmctl64 is added and __shmctl is change to call it instead (it adds some extra buffer copying for the 32 bit time_t implementation). Two new structures are added: 1. kernel_shmid64_ds: used internally only on 32-bit architectures to issue the syscall. A handful of architectures (hppa, i386, mips, powerpc32, and sparc32) require specific implementations due to their kernel ABI. 2. shmid_ds64: this is only for __TIMESIZE != 64 to use along with the 64-bit shmctl. It is different than the kernel struct because the exported 64-bit time_t might require different alignment depending on the architecture ABI. So the resulting implementation does: 1. For 64-bit architectures it assumes shmid_ds already contains 64-bit time_t fields and will result in just the __shmctl symbol using the __shmctl64 code. The shmid_ds argument is passed as-is to the syscall. 2. For 32-bit architectures with default 64-bit time_t (newer ABIs such riscv32 or arc), it will also result in only one exported symbol but with the required high/low time handling. 3. Finally for 32-bit architecture with both 32-bit and 64-bit time_t support we follow the already set way to provide one symbol with 64-bit time_t support and implement the 32-bit time_t support using of the 64-bit one. The default 32-bit symbol will allocate and copy the shmid_ds over multiple buffers, but this should be deprecated in favor of the __shmctl64 anyway. Checked on i686-linux-gnu and x86_64-linux-gnu. I also did some sniff tests on powerpc, powerpc64, mips, mips64, armhf, sparcv9, and sparc64. Reviewed-by: Alistair Francis Tested-by: Alistair Francis Tested-by: Carlos O'Donell Reviewed-by: Carlos O'Donell