Cleaning up findSharedMemory usage, fixing error checks on the returned pointer, consolidating code for findSharedMemory() and findSharedMemorySize() so we don't have duplicate, removing unused sprintf in both functions

Shared memory cleanup 1

See merge request cds/advligorts!295

 * typeo in one of the commits left it as the invalid 'lingo_ioremap.h' instead of 'ioremap_selection.h'

Remove all references to ioremap_nocache and replace with the LIGO_IOREMAP macro.

See merge request cds/advligorts!292

 * ligo_iomap.h becomes iomap_selection.h to denote what it actually does.
 * LIGO_IOREMAP becomes simply IOREMAP to note that it isn't LIGO specific.

 * This allows the code to call the appropriate version if ioremap/ioremap_nocache depending on the kernel version.

Adding the use of the rts-cpu-isolator.h header, and calling the...

Closes #337

See merge request cds/advligorts!291

Fixing set_fe_code_idle( func ), func prototype needs to match the expected void (*)( void ) and NOT void * (*) (void*)

Adapt the rcg build process to use rts-cpu-isolator symvers file (if present)

See merge request cds/advligorts!290

Adding the use of the rts-cpu-isolator.h header, and calling the swappable/better named functions rts_isolator_exec()/rts_isolator_cleanup() instead of cpu up/down directly

Adding functions with more general real-time/isolation language because this functionality extends to more general core isolation use-cases.

Closes #334

See merge request cds/advligorts!289

 * work towards #335
 * modify find_module_symvers to user argparser and have a quiet option to make missing symvers files empty strings
 * update the src/epics/util/Makefile.in to pass the location of the rts cpu isolator symver file to feCodeGen.pl
 * update createKernelMakefile.pm to add the rts cpu isolator symvers file to the KBUILD_EXTRA_SYMBOLS for the module

Adding funtions with more general real-time/isolation language because this functionality extends to more general core isolation usecases.

 * rename from ligo_rt_* to rts_cpu_isolator_*

Close issue #333 rename ligo_rt to rts-cpu-isolator

Closes #333

See merge request cds/advligorts!288

Fix for 332, standalone_edcu does not reflect all of its created values into EPICS.

Closes #332

See merge request cds/advligorts!287

Six channels are created by the EDCU.  Only three were sent to both EPICS and the data stream.
 * Update the standalone_edcu to export the UPTIME, GPS, and DATA_RATE_KB_PER_S values in EPICS as well.
 * Minor formatting changes as per clang-format run.

Closes #332

Updates to gpstime/mbuf code to build on 5.10.x kernels.

See merge request cds/advligorts!283

Including a Linux kernel module that encapsulates the LIGO RT patch.

See merge request cds/advligorts!285

Python org

See merge request cds/advligorts!286

The ligo_rt module has the functionality of the real time patch, without the
requirement to rebuild the kernel.

remove old unused stuff

See merge request cds/advligorts!284

 * Use the proper version of ioremap for each kernel version.
 * Use a 64bit time call in newer kernels.
 * Only use unlocked ioctls as the interface in the mbuf/gpstime code.

Correct TIME 0 values for non-standard IOPs

See merge request cds/advligorts!282

Minor changes to build under Debian 11.

See merge request cds/advligorts!248