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  2. Linux kernel version history - Wikipedia

    en.wikipedia.org/wiki/Linux_kernel_version_history

    This article documents the version history of the Linux kernel.. Each major version – identified by the first two numbers of a release version – is designated one of the following levels of support:

  3. C date and time functions - Wikipedia

    en.wikipedia.org/wiki/C_date_and_time_functions

    The C date and time functions are a group of functions in the standard library of the C programming language implementing date and time manipulation operations. [1] They provide support for time acquisition, conversion between date formats, and formatted output to strings.

  4. C23 (C standard revision) - Wikipedia

    en.wikipedia.org/wiki/C23_(C_standard_revision)

    Add timegm() function in <time.h> to convert time structure into calendar time value - similar to function in glibc and musl libraries. [ 12 ] New < math.h > functions based on IEEE 754-2019 recommendations, such as trigonometry functions operating on units of π x {\displaystyle \pi x} and exp10 .

  5. Linux kernel interfaces - Wikipedia

    en.wikipedia.org/wiki/Linux_kernel_interfaces

    The Linux API is composed out of the system call interface of the Linux kernel, the GNU C Library (by GNU), libcgroup, [1] libdrm, libalsa and libevdev [2] (by freedesktop.org). Linux API vs. POSIX API. The Linux API includes the kernel–user space API, which allows code in user space to access system resources and services of the Linux kernel ...

  6. glibc - Wikipedia

    en.wikipedia.org/wiki/Glibc

    Unicode 12.1.0, the dynamic linker accepts the --preload argument to preload shared objects, the gettid function has been added on Linux, Minguo (Republic of China) calendar support, new Japanese era added to ja_JP locale, memory allocation functions fail with total object size larger than PTRDIFF_MAX; CVE-2019-7309 and CVE-2019-9169 fixed [8] 2.31

  7. List of POSIX commands - Wikipedia

    en.wikipedia.org/wiki/List_of_POSIX_commands

    Version 3 AT&T UNIX unlink: Filesystem Optional (XSI) Call the unlink function Version 1 AT&T UNIX uucp: Network Optional (UU) System-to-system copy Version 7 AT&T UNIX uudecode: Network Mandatory Decode a binary file 4BSD uuencode: Network Mandatory Encode a binary file 4BSD uustat: Network Optional (UU) uucp status inquiry and job control ...

  8. O(1) scheduler - Wikipedia

    en.wikipedia.org/wiki/O(1)_scheduler

    Location of the "O(1) scheduler" (a process scheduler) in a simplified structure of the Linux kernel. An O(1) scheduler (pronounced "O of 1 scheduler", "Big O of 1 scheduler", or "constant time scheduler") is a kernel scheduling design that can schedule processes within a constant amount of time, regardless of how many processes are running on the operating system.

  9. List of tz database time zones - Wikipedia

    en.wikipedia.org/wiki/List_of_tz_database_time_zones

    Some of zone records use 3 or 4 letter abbreviations that are tied to physical time zones, others use numeric UTC offsets. In Ireland , what Irish law designates as "standard time" is observed during the summer, with clocks turned one hour ahead of UTC.