This is the same approach as done for AP_HAL_Linux in e3d78b8 ("AP_HAL_Linux:
fix passing callback to member function"). It fixes the following warnings:
ardupilot/libraries/AP_HAL_PX4/Scheduler.cpp: In member function 'virtual void PX4::PX4Scheduler::init(void*)':
ardupilot/libraries/AP_HAL_PX4/Scheduler.cpp:55:95: warning: converting from 'void* (PX4::PX4Scheduler::*)()' to 'pthread_startroutine_t {aka void* (*)(void*)}' [-Wpmf-conversions]
pthread_create(&_timer_thread_ctx, &thread_attr, (pthread_startroutine_t)&PX4::PX4Scheduler::_timer_thread, this);
^
ardupilot/libraries/AP_HAL_PX4/Scheduler.cpp:65:94: warning: converting from 'void* (PX4::PX4Scheduler::*)()' to 'pthread_startroutine_t {aka void* (*)(void*)}' [-Wpmf-conversions]
pthread_create(&_uart_thread_ctx, &thread_attr, (pthread_startroutine_t)&PX4::PX4Scheduler::_uart_thread, this);
^
ardupilot/libraries/AP_HAL_PX4/Scheduler.cpp:75:92: warning: converting from 'void* (PX4::PX4Scheduler::*)()' to 'pthread_startroutine_t {aka void* (*)(void*)}' [-Wpmf-conversions]
pthread_create(&_io_thread_ctx, &thread_attr, (pthread_startroutine_t)&PX4::PX4Scheduler::_io_thread, this);
^
ardupilot/libraries/AP_HAL_PX4/Scheduler.cpp:85:100: warning: converting from 'void* (PX4::PX4Scheduler::*)()' to 'pthread_startroutine_t {aka void* (*)(void*)}' [-Wpmf-conversions]
pthread_create(&_storage_thread_ctx, &thread_attr, (pthread_startroutine_t)&PX4::PX4Scheduler::_storage_thread, this);
ardupilot/libraries/AP_HAL_PX4/NSHShellStream.cpp: In member function 'void PX4::NSHShellStream::start_shell()':
ardupilot/libraries/AP_HAL_PX4/NSHShellStream.cpp:83:99: warning: converting from 'void (PX4::NSHShellStream::*)()' to 'pthread_startroutine_t {aka void* (*)(void*)}' [-Wpmf-conversions]
pthread_create(&shell_thread_ctx, &thread_attr, (pthread_startroutine_t)&PX4::NSHShellStream::shell_thread, this);
^
The argument in init() is not used by any implementation. Add a second
method without it so the HAL implementation can used it instead. Later
the unused method will be removed.
Robert Lefebvre
Andrew Tridgell
Lucas De Marchi
Peter Barker
Michael du Breuil
Gustavo Jose de Sousa
Caio Marcelo de Oliveira Filho
Tom Pittenger