nuttx

History

Gregory Nutt 92554257b9 Squashed commit of the following:

graphics/nxbe/nxbe_bitmap.c:  Fix another coordinate system problem.

    graphics/:  Review use of device coordinate system with window frambebuffer and make fixes accordingly.

    graphics/nxbe/nxbe_fill.c:  Fix a coordinate system bug.  Was trying to update the window fraembuffer using the device coordinate system.  Need to use the relative coordinate system.

    graphics/:  Use DEBUGASSERT instead of return an error since the is no user to handle the errors within the NX server.  Use CONFIG_DEBUG_GRAPHICS instead of CONFIG_DEBUG_FEATURES in most cases.

    graphics/:  Nothing under graphics/ should set the errno.

2019-03-17 11:34:45 -06:00

libc

lib_gethostbyaddrr.c edited online with Bitbucket

2019-03-11 03:55:08 +00:00

libdsp

Merged in raiden00/nuttx_pe (pull request #771 )

2018-12-02 11:49:25 +00:00

libnx

Squashed commit of the following:

2019-03-17 11:34:45 -06:00

libxx

libs/libxx/Kconfig: utomatically select CONFIG_LIBC_WCHAR and CONFIG_TIME_EXTENDED when CONFIG_LIBCXX is selected since libcxx compile fails if without these two option

2019-01-27 07:00:07 -06:00

README.txt

Remove trailing spaces at the end of lines.

2018-08-13 07:39:38 -06:00

README.txt

README
======

This directory holds NuttX libraries.  Libraries in NuttX are very special
creatures.  The have these properties:

1. They can be shared by both application logic and logic within the OS when
   using the FLAT build.

2. But in PROTECTED and KERNEL modes, they must be built differently:  The
   copies used by applications and the OS cannot be the same.  Rather,
   separate versions of libraries must be built for the kernel and for
   applications.

3. When used by the OS, some special care must be taken to assure that the
   OS logic does not disrupt the user's errno value and that the OS does
   not create inappropriate cancellation points.

   For example, sem_wait() is both a cancellation point and modifies the
   errno value.  So within the FLAT build and without kernel version for
   the PROTECTED and KERNEL builds, the special internal OS interface
   nxsem_wait() must be used.  Within libraries, the macro  _SEM_WAIT()
   (as defined in include/nuttx/semaphore.h) is used instead.  The
   definition of this macro accounts for the different usage environments.

NOTE:  The libraries under libs/ build differently from other NuttX
components:  There are no build-related files in the libs/ directory; it
is simply a container for other well-known, individual library directories.
The upper level Makefile logic is aware of the libraries within the libs/
container.

The only real function of the libs/ directory is to prevent the top-level
directory from becoming cluttered with individual libraries.