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lib: posix: Move posix layer from 'kernel' to 'lib' Move posix layer from 'kernel' to 'lib' folder as it is not a core kernel feature. Fixed posix header file dependencies as part of the move and also removed NEWLIBC related macros from posix headers. Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
2018-04-05 22:41:15 +05:30
# Copyright (c) 2018 Intel Corporation
posix: split supported features into separate Kconfig files This change is setting up for switching over to proper POSIX option requirements, feature test macros, and a dependency structure that is reflective of the standard. Signed-off-by: Christopher Friedt <cfriedt@meta.com>
2023-07-03 15:15:35 -04:00
# Copyright (c) 2023 Meta
#
lib: posix: Move posix layer from 'kernel' to 'lib' Move posix layer from 'kernel' to 'lib' folder as it is not a core kernel feature. Fixed posix header file dependencies as part of the move and also removed NEWLIBC related macros from posix headers. Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
2018-04-05 22:41:15 +05:30
# SPDX-License-Identifier: Apache-2.0
posix: add a top-level menu Add a top-level menu to prevent POSIX API options from cluttering the menuconfig view under "Additional libraries". Signed-off-by: Christopher Friedt <cfriedt@meta.com>
2024-01-24 13:28:45 -05:00
menu "POSIX API Support"
kconfig: Global whitespace/consistency cleanup Clean up space errors and use a consistent style throughout the Kconfig files. This makes reading the Kconfig files more distraction-free, helps with grepping, and encourages the same style getting copied around everywhere (meaning another pass hopefully won't be needed). Go for the most common style: - Indent properties with a single tab, including for choices. Properties on choices work exactly the same syntactically as properties on symbols, so not sure how the no-indentation thing happened. - Indent help texts with a tab followed by two spaces - Put a space between 'config' and the symbol name, not a tab. This also helps when grepping for definitions. - Do '# A comment' instead of '#A comment' I tweaked Kconfiglib a bit to find most of the stuff. Some help texts were reflowed to 79 columns with 'gq' in Vim as well, though not all, because I was afraid I'd accidentally mess up formatting. Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-11-01 10:24:07 +01:00
config POSIX_MAX_FDS
lib: posix: Implement generic file descriptor table The table allows to wrap read/write (i.e. POSIX-compatible) semantics of any I/O object in POSIX-compatible fd (file descriptor) handling. Intended I/O objects include files, sockets, special devices, etc. The table table itself consists of (underlying obj*, function table*) pairs, where function table provides entries for read(), write, and generalized ioctl(), where generalized ioctl handles all other operations, up to and including closing of the underlying I/O object. Fixes: #7405 Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2018-10-08 13:55:03 +03:00
int "Maximum number of open file descriptors"
hostap: Move the relevant config options away from hostap Moving the Zephyr specific config options from modules/hostap/Kconfig to corresponding Kconfig where the option is specified. Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
2023-10-20 15:36:56 +03:00
default 16 if WIFI_NM_WPA_SUPPLICANT
lib: posix: Implement generic file descriptor table The table allows to wrap read/write (i.e. POSIX-compatible) semantics of any I/O object in POSIX-compatible fd (file descriptor) handling. Intended I/O objects include files, sockets, special devices, etc. The table table itself consists of (underlying obj*, function table*) pairs, where function table provides entries for read(), write, and generalized ioctl(), where generalized ioctl handles all other operations, up to and including closing of the underlying I/O object. Fixes: #7405 Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2018-10-08 13:55:03 +03:00
default 16 if POSIX_API
default 4
help
Maximum number of open file descriptors, this includes
files, sockets, special devices, etc.
lib: posix: Add top-level define for all POSIX APIs - CONFIG_POSIX_API It so happened that previously CONFIG_PTHREAD_IPC served this role. But pthreads and IPC is only parts of POSIX, orthogonal to other services. Move CONFIG_POSIX_FS, etc. out from CONFIG_PTHREAD_IPC. Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2018-09-27 18:08:12 +03:00
config POSIX_API
lib POSIX: Enable selectively for POSIX ARCH The POSIX API compatibility shim can be used for some of the POSIX ARCH targets. Narrow the Kconfig filtering accordingly. Note that the recommended configuration when building with the native simulator is still to use an embedded C library. Using the host C library will in some cases cause undesired behaviour. Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
2023-05-31 17:09:25 +02:00
depends on !NATIVE_APPLICATION
lib: posix: Add top-level define for all POSIX APIs - CONFIG_POSIX_API It so happened that previously CONFIG_PTHREAD_IPC served this role. But pthreads and IPC is only parts of POSIX, orthogonal to other services. Move CONFIG_POSIX_FS, etc. out from CONFIG_PTHREAD_IPC. Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2018-09-27 18:08:12 +03:00
bool "POSIX APIs"
help
Enable mostly-standards-compliant implementations of
various POSIX (IEEE 1003.1) APIs.
lib: posix: Switch to use zephyr_interface_library_named cmake directive Similar to how other sub-libraries are defined in Zephyr tree, e.g. "fs", "lgvl", etc. This is supposed to help with the need to explicitly add posix include path to each and every application using POSIX subsys. Fixes: #15627 Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2019-05-06 16:50:24 +03:00
# The name of this option is mandated by zephyr_interface_library_named
# cmake directive.
config APP_LINK_WITH_POSIX_SUBSYS
kconfig: Global whitespace/consistency cleanup Clean up space errors and use a consistent style throughout the Kconfig files. This makes reading the Kconfig files more distraction-free, helps with grepping, and encourages the same style getting copied around everywhere (meaning another pass hopefully won't be needed). Go for the most common style: - Indent properties with a single tab, including for choices. Properties on choices work exactly the same syntactically as properties on symbols, so not sure how the no-indentation thing happened. - Indent help texts with a tab followed by two spaces - Put a space between 'config' and the symbol name, not a tab. This also helps when grepping for definitions. - Do '# A comment' instead of '#A comment' I tweaked Kconfiglib a bit to find most of the stuff. Some help texts were reflowed to 79 columns with 'gq' in Vim as well, though not all, because I was afraid I'd accidentally mess up formatting. Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-11-01 10:24:07 +01:00
bool "Make POSIX headers available to application"
default y
kconfig: Replace some single-symbol 'if's with 'depends on' I think people might be reading differences into 'if' and 'depends on' that aren't there, like maybe 'if' being needed to "hide" a symbol, while 'depends on' just adds a dependency. There are no differences between 'if' and 'depends on'. 'if' is just a shorthand for 'depends on'. They work the same when it comes to creating implicit menus too. The way symbols get "hidden" is through their dependencies not being satisfied ('if'/'depends on' get copied up as a dependency on the prompt). Since 'if' and 'depends on' are the same, an 'if' with just a single symbol in it can be replaced with a 'depends on'. IMO, it's best to avoid 'if' there as a style choice too, because it confuses people into thinking there's deep Kconfig magic going on that requires 'if'. Going for 'depends on' can also remove some nested 'if's, which generates nicer symbol information and docs, because nested 'if's really are so simple/dumb that they just add the dependencies from both 'if's to all symbols within. Replace a bunch of single-symbol 'if's with 'depends on' to despam the Kconfig files a bit and make it clearer how things work. Also do some other minor related dependency refactoring. The replacement isn't complete. Will fix up the rest later. Splitting it a bit to make it more manageable. (Everything above is true for choices, menus, and comments as well.) Detected by tweaking the Kconfiglib parsing code. It's impossible to detect after parsing, because 'if' turns into 'depends on'. Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2020-02-08 03:45:50 +01:00
depends on POSIX_API
kconfig: Global whitespace/consistency cleanup Clean up space errors and use a consistent style throughout the Kconfig files. This makes reading the Kconfig files more distraction-free, helps with grepping, and encourages the same style getting copied around everywhere (meaning another pass hopefully won't be needed). Go for the most common style: - Indent properties with a single tab, including for choices. Properties on choices work exactly the same syntactically as properties on symbols, so not sure how the no-indentation thing happened. - Indent help texts with a tab followed by two spaces - Put a space between 'config' and the symbol name, not a tab. This also helps when grepping for definitions. - Do '# A comment' instead of '#A comment' I tweaked Kconfiglib a bit to find most of the stuff. Some help texts were reflowed to 79 columns with 'gq' in Vim as well, though not all, because I was afraid I'd accidentally mess up formatting. Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-11-01 10:24:07 +01:00
help
Add POSIX subsystem header files to the 'app' include path.
lib: posix: Add support for eventfd This implements a file descriptor used for event notification that behaves like the eventfd in Linux. The eventfd supports nonblocking operation by setting the EFD_NONBLOCK flag and semaphore operation by settings the EFD_SEMAPHORE flag. The major use case for this is when using poll() and the sockets that you poll are dynamic. When a new socket needs to be added to the poll, there must be some way to wake the thread and update the pollfds before calling poll again. One way to solve it is to have a timeout set in the poll call and only update the pollfds during a timeout but that is not a very nice solution. By instead including an eventfd in the pollfds, it is possible to wake the polling thread by simply writing to the eventfd. Signed-off-by: Tobias Svehagen <tobias.svehagen@gmail.com>
2019-11-05 16:09:42 +01:00
posix: split supported features into separate Kconfig files This change is setting up for switching over to proper POSIX option requirements, feature test macros, and a dependency structure that is reflective of the standard. Signed-off-by: Christopher Friedt <cfriedt@meta.com>
2023-07-03 15:15:35 -04:00
config PTHREAD_IPC
bool "POSIX pthread IPC API"
posix: eventfd: select eventfd by default with CONFIG_POSIX_API Although the eventfd API is not (yet) a part of POSIX, it's pretty well ubiquitous on POSIX systems now. Enable it by default when `CONFIG_POSIX_API=y`. Signed-off-by: Chris Friedt <cfriedt@meta.com>
2022-10-28 15:31:06 -04:00
default y if POSIX_API
posix: split supported features into separate Kconfig files This change is setting up for switching over to proper POSIX option requirements, feature test macros, and a dependency structure that is reflective of the standard. Signed-off-by: Christopher Friedt <cfriedt@meta.com>
2023-07-03 15:15:35 -04:00
depends on POSIX_CLOCK
lib: posix: Add support for eventfd This implements a file descriptor used for event notification that behaves like the eventfd in Linux. The eventfd supports nonblocking operation by setting the EFD_NONBLOCK flag and semaphore operation by settings the EFD_SEMAPHORE flag. The major use case for this is when using poll() and the sockets that you poll are dynamic. When a new socket needs to be added to the poll, there must be some way to wake the thread and update the pollfds before calling poll again. One way to solve it is to have a timeout set in the poll call and only update the pollfds during a timeout but that is not a very nice solution. By instead including an eventfd in the pollfds, it is possible to wake the polling thread by simply writing to the eventfd. Signed-off-by: Tobias Svehagen <tobias.svehagen@gmail.com>
2019-11-05 16:09:42 +01:00
help
posix: split supported features into separate Kconfig files This change is setting up for switching over to proper POSIX option requirements, feature test macros, and a dependency structure that is reflective of the standard. Signed-off-by: Christopher Friedt <cfriedt@meta.com>
2023-07-03 15:15:35 -04:00
This enables a mostly-standards-compliant implementation of
the pthread mutex, condition variable and barrier IPC
mechanisms.
lib: posix: move fnmatch from lib/util to lib/posix The `fnmatch()` function is specified by POSIX and should be a part of `lib/posix`. Signed-off-by: Chris Friedt <cfriedt@meta.com>
2023-02-25 08:03:11 -05:00
posix: Add basic sysconf() function implementation The patch introduces basic implementation of sysconf() function. It's based on macro - that means that every function call is resolved at compile time - and is not fully complient with POSIX standard (the errno value is not handled and passing invalid name argument results in compilation error). Treat this commit as a starting point for proper sysconf() implementation. The one introduced in the patch could stay as a defult implementation. sysconf() documentation: https://pubs.opengroup.org/onlinepubs/9699919799/functions/sysconf.html https://man7.org/linux/man-pages/man3/sysconf.3.html Fixes #56670 Signed-off-by: Adam Wojasinski <awojasinski@baylibre.com>
2024-01-11 21:31:59 +01:00
config POSIX_SYSCONF
bool "Support for sysconf"
default y if POSIX_API
help
The sysconf() function provides a method for the application to determine
the current value of a configurable system limit or option (variable).
config POSIX_PAGE_SIZE_BITS
int "Number of bits to use for PAGE_SIZE"
range 6 16
default 12 if POSIX_API
default 6
help
Define PAGE_SIZE as BIT(n), where n is the value configured here.
PAGE_SIZE is supported in the range [64, 65536]
If CONFIG_POSIX_API=y, PAGE_SIZE defaults to 4096, otherwise, it is 64 bytes.
posix: split supported features into separate Kconfig files This change is setting up for switching over to proper POSIX option requirements, feature test macros, and a dependency structure that is reflective of the standard. Signed-off-by: Christopher Friedt <cfriedt@meta.com>
2023-07-03 15:15:35 -04:00
source "lib/posix/Kconfig.barrier"
source "lib/posix/Kconfig.clock"
source "lib/posix/Kconfig.cond"
source "lib/posix/Kconfig.eventfd"
source "lib/posix/Kconfig.fnmatch"
source "lib/posix/Kconfig.fs"
source "lib/posix/Kconfig.getopt"
source "lib/posix/Kconfig.key"
posix: signal: check RTSIG limit Use build assert to make sure that the realtime signal constants are configured properly in the Kconfig. Signed-off-by: Yong Cong Sin <ycsin@meta.com>
2023-07-18 13:00:59 +08:00
source "lib/posix/Kconfig.limits"
posix: split supported features into separate Kconfig files This change is setting up for switching over to proper POSIX option requirements, feature test macros, and a dependency structure that is reflective of the standard. Signed-off-by: Christopher Friedt <cfriedt@meta.com>
2023-07-03 15:15:35 -04:00
source "lib/posix/Kconfig.mqueue"
source "lib/posix/Kconfig.mutex"
source "lib/posix/Kconfig.pthread"
posix: rwlock: make pthread_rwlock_t a pooled ipc type Like mutex, barrier, cond, spinlock, etc, make pthread_rwlock_t a pooled ipc type. Signed-off-by: Christopher Friedt <cfriedt@meta.com>
2024-01-15 23:37:58 -05:00
source "lib/posix/Kconfig.rwlock"
posix: sched: Add CONFIG_POSIX_PRIORITY_SCHEDULING Add `CONFIG_POSIX_PRIORITY_SCHEDULING` Kconfig option to select APIs from PSE53 `_POSIX_PRIORITY_SCHEDULING` option group. Signed-off-by: Dmitrii Golovanov <dmitrii.golovanov@intel.com>
2023-12-27 21:56:15 +01:00
source "lib/posix/Kconfig.sched"
posix: split supported features into separate Kconfig files This change is setting up for switching over to proper POSIX option requirements, feature test macros, and a dependency structure that is reflective of the standard. Signed-off-by: Christopher Friedt <cfriedt@meta.com>
2023-07-03 15:15:35 -04:00
source "lib/posix/Kconfig.semaphore"
posix: signal: add initial header Initial header for the signal APIs. APIs to be implemented in later commit. Signed-off-by: Yong Cong Sin <ycsin@meta.com>
2023-07-08 22:09:25 +08:00
source "lib/posix/Kconfig.signal"
posix: split supported features into separate Kconfig files This change is setting up for switching over to proper POSIX option requirements, feature test macros, and a dependency structure that is reflective of the standard. Signed-off-by: Christopher Friedt <cfriedt@meta.com>
2023-07-03 15:15:35 -04:00
source "lib/posix/Kconfig.spinlock"
source "lib/posix/Kconfig.timer"
posix: implement uname Add implementation for posix uname. Signed-off-by: Yong Cong Sin <ycsin@meta.com>
2023-07-04 15:15:15 +08:00
source "lib/posix/Kconfig.uname"
posix: uname: move `uname` shell from sample Relocate the `uname` shell implementation from uname sample, so that it can be reused by other application and the uname sample only uses POSIX APIs. Signed-off-by: Yong Cong Sin <ycsin@meta.com>
2024-01-16 14:33:12 +08:00
rsource "shell/Kconfig"
posix: add a top-level menu Add a top-level menu to prevent POSIX API options from cluttering the menuconfig view under "Additional libraries". Signed-off-by: Christopher Friedt <cfriedt@meta.com>
2024-01-24 13:28:45 -05:00
endmenu # "POSIX API Support"
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