Use a struct to contain all the parameters so the ordering in
memory is not machine dependent.
Add number of parameters to the param struct. The struct actually
allows direct accessing by the member name if desired.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Changed to enable the posix_sitl_simple target to build and run
param show *
without using a linker script
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
In nuttx the mode parameter to open is not required but in Linux,
and per the POSIX spec, mode is required if the O_CREAT flag is
passed.
The mode flags are different for NuttX and Linux so a new set of
PX4 defines was added:
PX4_O_MODE_777 - read, write, execute for user, group and other
PX4_O_MODE_666 - read, and write for user, group and other
PX4_O_MODE_600 - read, and write for user
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Set a default path relative to current dir for the posix target.
Running make posixrun will create the required directoroes and then run
mainapp from its build location.
PX4_ROOTFSDIR is set to nothing for nuttx.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
The existing orb_advert_t use thoughout the code sometimes tries
to treat it as a file descriptor and there are checks for < 0
and ::close calls on orb_advert_t types which is an invalid use
of an object pointer, which is what orb_advert_t really is.
Initially I had changed the -1 initializations to 0 but it was
suggested that this should be nullptr. That was a good recommendation
but the definition of orb_advert_t had to change to void * because
you cannot initialize a uintptr_t as nullptr.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
The calls to orb_advertise were being mishandled throughout the code.
There were ::close() calls on memory pointers, there were checks
against < 0 when it is a pointer to a object and values larger than
0x7ffffffff are valid. Some places orb_advert_t variables were
being initialized as 0 other places as -1.
The orb_advert_t type was changed to uintptr_t so the pointer value
would not be wrapped as a negative number. This was causing a failure
on ARM.
Tests for < 0 were changed to == 0 since a null pointer is the valid
representation for error, or uninitialized.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Unit tests now work. The linux build was failing saving params
because it was using the changes for QuRT that fake out the
filesystem.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
QuRT does not have a filesystem, so creating a virtual filesystem
that could be implemented as an in-memory file or a remote file
over fastRPC.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Changed "linux" target to "posix". Most of the changes are shared with
QuRT and with OSX. The Linux specific parts are in for i2c which uses
<linux/i2c.h> and <linux/i2c-dev.h>.
There is also a check for __PX4_LINUX in mavlink for a tty ioctl that is
not supported.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
GCC 4.8 and higher implement 16 byte static data alignment on 64-bit.
This means that the 24-byte param_info_s variables are 16 byte aligned
by GCC and that messes up the assumption that the address of the second
parameter is at ¶m[0]+sizeof(param[0]).
When compiled with clang it is true, with gcc is is not true.
See https://llvm.org/bugs/show_bug.cgi?format=multiple&id=18006
The fix is needed for GCC >=4.8 only. Clang works fine without this.
Added __attribute__((aligned(16))) to first member of param_info_s.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Added linker script to resolve __param_start and __param_end.
Added mc_att_control to list of supported builtins.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Modified uint32_t casts of pointers to unsigned long for portability.
It otherwise breaks on x86_64.
Added _PX4_IOC to handle the conflice between _IOC on Linux and NuttX.
Removed use of px4::ok() because it cannot be used in a thread based
implementation. Changed to use px4::AppMgr which uses ok() on ROS.
Removed up_cxxinitialize.c from Linux build.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
