[libc] implement template functions for localtime#110363

Merged

michaelrj-google merged 226 commits intollvm:mainfrom

zimirza:localtime_107597

Sep 3, 2025

Commits on Aug 31, 2025

[libc] implement localtime

Зишан Мирза
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zimirza
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[libc] implement localtime

Зишан Мирза
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[libc] implement localtime

Зишан Мирза
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[libc] implement localtime

Зишан Мирза
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[libc] implement localtime

Зишан Мирза
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[libc] implement localtime

Зишан Мирза
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[libc] implement localtime

Зишан Мирза
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localtime_s is for windows only, implement localtime_s on gnu/linux for

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fix: localtime_s

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fix: path for mktime

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fix: localtime_s and dst function

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added tests for localtime_r

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format code with clang-format

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refactor: timezone

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removing mktime as dependency to localtime_s

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revert ctime tests

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revert ctime_r tests

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fix: daylight saving time

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update documentation for libc

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refactor: file read

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fix: file read

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fix: timezone char length
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timezone implementation

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format code with clang-format

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use stack allocation of memory instead of heap allocation

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remove `free` function because stack allocation of memory is now used

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added more timezones

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added more timezones

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refactor to parse `/etc/localtime`

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parse `/etc/localtime` implementation

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add support for `tzfile` v3

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add `close` function

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add support for `tzfile` version 4

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fix: bytes for timezone file

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fix: merge from main branch

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define structs for timezone data

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use pointers in struct

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refactor: get timezone data from tzfile

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refactor: rename function since it returns tzset struct

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update struct fields with additional fields and parse timezone data

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remove last char in timezone text

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use `open` instead of `fopen`

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use `static` and add number of transitions times for timezone

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format code with clang-format

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refactor: parse of tzset file

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refactor: parse of offsets

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refactor: parse of offsets

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use timezone implementation for localtime function implementation

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format code with clang-format

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add header file for time_utils in asctime_test

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fix function name for asctime

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fix: add `get_tzset` function to time_utils header file

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fix: add timezone header file to time_utils header file

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fix: tzet function in time_utils header file

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fix: add timezone header file to tests

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fix: add header file for size_t

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add todo in tests

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add timezone to dependencies for tests

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fix path for timezone header file for tests

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format code with clang-format

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fix dependencies for tests

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add header file for size_t

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add timezone header file to gmtime tests

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format code with clang-format

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add timezone to gmtime tests

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format code with clang-format

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add timezone to mktime

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add timezone to gmtime

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add timezone to mktime

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use `static_cast`

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fix tests for timezone

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refactor: move definitions to scope

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format code with clang-format

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fix: dependencies for timezone for tests

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fix: tests

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refactor: fix tests

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refactor: localtime

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uncomment tests for asctime

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undo asctime

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format code with clang-format

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undo asctime

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fix: ctime_r

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refactor: use `openfile`

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fix: add header file for time_utils in localtime

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fix localtime

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fix: fixed tests for asctime and removed unnecessary header include

Zishan Mirza
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refactor: move linux specific implementation to libc/src/time/linux/

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format code with clang-format

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fix: tests

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fix: tests

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fix: add if macro for linux implementations

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fix: check if timer variable is nullptr

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fix: return type for localtime_s implementation

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fix: tests for difftime

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use LIBC_TARGET_OS for platform independent implementations

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fix tests for clock

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add localtime

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remove implementation for a different pull request

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remove implementation for a different pull request

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remove unit tests for a different pull request

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uncheck ctime and localtime in docs

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remove entrypoints

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fix merge and tests

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format code with clang-format

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fix merge and time

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add fopen to mktime

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comment out offset and isdst

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update time

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uncomment get env var function and fix tests

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add unistd.h to tests

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removed time_t.h from localtime_utils

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fix: time

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tmp

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environment variables is only tested on gnu/linux

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fix: environment variables

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remove system header file for time.h
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remove local time.h header file and add system time.h header file
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use system header files for integer types
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undo cmake file for tests
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undo header include for tests
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undo header include and fixed ctime header include
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undo
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undo
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fixed header include for ctime_r tests
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mktime requires fopen
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add file dependency
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fix: merge from main branch
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remove file dependency from ctime_r
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removed localtime_s for this pull request
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remove localtime_s for this pull request
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removed localtime_s for this pull request
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removed localtime_s for this pull request
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moved linux specific code
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removed localtime_utc function and fixed localtime function
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use `getenv` implementation of using `unistd.h`
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fix: function signature for localtime
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revert: function signature for `update_for_seconds`
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format code with clang-format
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remove `fopen`
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fix: environment pointer
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fix: environment pointer
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format code with clang-format
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remove file.h from timezone
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use FILE
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include file
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format code with clang-format
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revert ctime_r_test and remove dst function for another pull request
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remove constant for a different pull request
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revert ctime and remove timezone implementation
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add `fopen` to `ctime_r`
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revert: ctime
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revert ctime unit tests
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revert: ctime unit tests
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revert: ctime
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revert: update_from_seconds
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revert: update_from_seconds
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rerun github actions
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remove localtime_macros.h
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function `get_localtime` should not be `extern`
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remove `get_env_var` function from this pull request
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use c++-style references
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format code with clang-format
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use c++ style references
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removed timezone implementation definitions
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removed app.h from time_utils.cpp
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fix: code format
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use localtime_internal instead of gmtime_internal
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remove comment
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add struct for tzset
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fix: pointers
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removed invalid value from localtime_internal function
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rename and add todo
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add message to stderr for timezone database implementation
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add localtime and localtime_r to x86_64 entrypoints
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removed unused variable
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remove localtime_utils and timezone from this patch
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update dependencies for tests
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remove c++ version dependency
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add localtime and localtime_r to entrypoint objects for linux
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update comment
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removed dependencies for baremetal implementation of localtime and added
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add localtime and localtime_r to aarch64 baremetal entrypoints
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remove fortify source and fortify level options
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fix: dependencies for localtime baremetal implementation
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fix: localtime implementation for baremetal
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add implementation for localtime_r for baremetal
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remove extern inlines from localtime overlay
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remove extern inline from localtime overlay
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add extern inlines and add localtime_r to localtime overlay
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fix: dependencies for localtime and localtime_r
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remove stderr message
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remove TmHelper.h from localtime and localtime_r tests
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move localtime.cpp and localtime_r.cpp to time/ instead of time/linux/
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update CMakeFiles.txt for linux
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update CMakeFiles.txt for time
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update tests for localtime and localtime_r
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update localtime and localtime_r
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format code with clang-format
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include common.h first
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include common.h first
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move including of common.h to localtime.h and localtime_r.h
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rename variables
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use `LIBC_CRASH_ON_NULLPTR` instead of returning `nullptr`
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add headers for time_utils.h
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add includes for struct_tm and time_t
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format code with clang-format
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update CMakeLists file for tests for localtime
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add tests for localtime and localtime_r
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use `LIBC_CRASH_ON_NULLPTR` for localtime and localtime_r
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format code with clang-format
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add `LIBC_CRASH_ON_NULLPTR` for struct
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fix tests for localtime_r
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format code with clang-format
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add tests for nullptr
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format code with clang-format
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add localtime and localtime_r to docs
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add includes to `struct tm` and `time_t` for localtime and localtime_r
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fix: rebase from main branch for time.rst file
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fix: rebase from main branch - add newline char in time.rst file
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Revert "fix: rebase from main branch - add newline char in time.rst file"
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fix: rebase from main branch
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fix: rebase from main branch
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fix: rebase from main branch
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use `WITH_SIGNAL` in `nullptr` tests for localtime and localtime_r
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format code with clang-format
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Commits on Sep 1, 2025

add time_utils as dependency to localtime and localtime_r
zimirza
committed

[libc] implement template functions for localtime#110363michaelrj-google merged 226 commits intollvm:mainllvm/llvm-project:mainfrom zimirza:localtime_107597zimirza/llvm-project:localtime_107597Copy head branch name to clipboard

Commits

Commits on Aug 31, 2025

[libc] implement template functions for localtime#110363
michaelrj-google merged 226 commits intollvm:mainfrom
zimirza:localtime_107597