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Author	SHA1	Message	Date
Marco Casaroli	58e227a8a5	Documentation: Document dlopen() reference counting. Describe the shared library open semantics in the FLAT and PROTECTED builds: dlopen() of a library that is already loaded returns a handle to it and takes an additional reference, and the library is unloaded only when the last handle is closed. Note the consequences that follow from having a single instance: libraries are matched by basename, data is shared by all users, and constructors and destructors run once. Contrast this with insmod(), which still rejects a duplicate module name, and note that dlopen() is not implemented in the KERNEL build. Assisted-by: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Marco Casaroli <marco.casaroli@gmail.com>	2026-08-04 11:12:49 -03:00
Old-Ding	115e0a97e9	Documentation: Fix kernel module wording. Fix repeated and misspelled words in the kernel modules versus shared libraries implementation notes so the text reads correctly. Signed-off-by: Old-Ding <35417409+Old-Ding@users.noreply.github.com>	2026-07-05 19:43:23 +02:00
Tomasz 'CeDeROM' CEDRO	0cfa6f1b96	doc: Migrating the rest of documentation from cwiki. * This completes task list in https://github.com/apache/nuttx/issues/11127. * This preserves selected content from cwiki and moves it to new docs. * Most pages are simple copy-paste with a simple RST formatting updates, with minor updates. * Content update / reorganization will follow later on when needed. * Files added (or updated title from cwiki -> current docs): * Documentation/implementation: * index. * cancellation_points. * Asynchronous vs. Synchronous Context Switches -> context_switches.rst. * ARMv7-M Hardfaults, SVCALL, and Debuggers -> hardfatuls.rst. * chip.h FAQ -> chip_h.rst. * Debug Output (SYSLOG) Issues -> syslog.rst. * Detaching File Descriptors -> file_descriptors.rst. * device_nodes.rst. * Dynamic Clocking -> power_management.rst. * ENOTTY ioctl() Return Value -> ioctl.rst. * memory_configurations.rst. * kernel_modules_vs_shared_libraries.rst. * NAKing USB OUT/IN Tokens -> usb.rst. * naming_arch_mcu_board_interfaces.rst. * naming_os_internals.rst. * nuttx_tasking.rst. * oneshot_timers_and_cpu_load.rst. * nuttx_initialization_sequence.rst. * short_time_delays.rst. * Signal Handler Tour -> signal_handlers.rst. * smp.rst. * syslog.rst. * Task Exit Sequence -> nuttx_tasking.rst. * tasks_vs_threads.rst. * tls.rst. * tickless_os.rst. * Why Can't Kernel Threads Have pthreads -> kernel_threads_vs_pthreads.rst. * Documentation/components/filesystem: * smartfs.rst. Signed-off-by: Tomasz 'CeDeROM' CEDRO <tomek@cedro.info>	2026-05-28 09:34:04 +08:00

Author

SHA1

Message

Date

Marco Casaroli

58e227a8a5

Documentation: Document dlopen() reference counting.

Describe the shared library open semantics in the FLAT and PROTECTED
builds: dlopen() of a library that is already loaded returns a handle
to it and takes an additional reference, and the library is unloaded
only when the last handle is closed.  Note the consequences that follow
from having a single instance: libraries are matched by basename, data
is shared by all users, and constructors and destructors run once.

Contrast this with insmod(), which still rejects a duplicate module
name, and note that dlopen() is not implemented in the KERNEL build.

Assisted-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
Signed-off-by: Marco Casaroli <marco.casaroli@gmail.com>

2026-08-04 11:12:49 -03:00

Old-Ding

115e0a97e9

Documentation: Fix kernel module wording.

Fix repeated and misspelled words in the kernel modules versus shared libraries implementation notes so the text reads correctly.

Signed-off-by: Old-Ding <35417409+Old-Ding@users.noreply.github.com>

2026-07-05 19:43:23 +02:00

Tomasz 'CeDeROM' CEDRO

0cfa6f1b96

doc: Migrating the rest of documentation from cwiki.

* This completes task list in https://github.com/apache/nuttx/issues/11127.
* This preserves selected content from cwiki and moves it to new docs.
* Most pages are simple copy-paste with a simple RST formatting updates,
  with minor updates.
* Content update / reorganization will follow later on when needed.
* Files added (or updated title from cwiki -> current docs):
  * Documentation/implementation:
    * index.
    * cancellation_points.
    * Asynchronous vs. Synchronous Context Switches -> context_switches.rst.
    * ARMv7-M Hardfaults, SVCALL, and Debuggers -> hardfatuls.rst.
    * chip.h FAQ -> chip_h.rst.
    * Debug Output (SYSLOG) Issues -> syslog.rst.
    * Detaching File Descriptors -> file_descriptors.rst.
    * device_nodes.rst.
    * Dynamic Clocking -> power_management.rst.
    * ENOTTY ioctl() Return Value -> ioctl.rst.
    * memory_configurations.rst.
    * kernel_modules_vs_shared_libraries.rst.
    * NAKing USB OUT/IN Tokens -> usb.rst.
    * naming_arch_mcu_board_interfaces.rst.
    * naming_os_internals.rst.
    * nuttx_tasking.rst.
    * oneshot_timers_and_cpu_load.rst.
    * nuttx_initialization_sequence.rst.
    * short_time_delays.rst.
    * Signal Handler Tour -> signal_handlers.rst.
    * smp.rst.
    * syslog.rst.
    * Task Exit Sequence -> nuttx_tasking.rst.
    * tasks_vs_threads.rst.
    * tls.rst.
    * tickless_os.rst.
    * Why Can't Kernel Threads Have pthreads -> kernel_threads_vs_pthreads.rst.
  * Documentation/components/filesystem:
    * smartfs.rst.

Signed-off-by: Tomasz 'CeDeROM' CEDRO <tomek@cedro.info>

2026-05-28 09:34:04 +08:00

3 commits