micro_ros_lib/toolchain.cmake.in initialised C and CXX flags with
-D'__attribute__(x)=' to silence GCC attributes the upstream ament
build is not aware of. The strip also removed __gnu_inline__ and
__always_inline__ from NuttX's libc string.h inlines, so each
micro-ROS translation unit emitted external definitions of strcmp,
strcpy, strlen and friends. Sim final link then failed with ~50
multiple-definition errors.
Drop the define from both flag init lines so the attributes survive
and the inlines collapse as intended.
Signed-off-by: Arjav Patel <arjav1528@gmail.com>
Add -D__NuttX__ to CMAKE_C_FLAGS_INIT and CMAKE_CXX_FLAGS_INIT in
toolchain.cmake.in so that all cross-compiled micro-ROS packages see the
NuttX target macro. Without this, rcutils/src/process.c follows the
__linux__ branch and references program_invocation_name, a glibc-only
extension absent from the NuttX C library.
Pair with 0002-rcutils-process-nuttx-compat.patch which additionally
guards the linux branch with !defined(__NuttX__), ensuring the embedded
fallback path is taken on NuttX even if the host compiler defines any
linux-flavoured macros.
Signed-off-by: Arjav Patel <arjav1528@gmail.com>
Add toolchain.cmake.in and include_override/assert.h for the colcon
cross-build. Key differences from the old robertobucher port:
- Drop -DCLOCK_MONOTONIC=0: NuttX defines CLOCK_MONOTONIC=1 and
the override broke nanosleep() on newer kernels.
- CMAKE_SYSTEM_PROCESSOR is a placeholder substituted per-arch.
- include_override/assert.h works around the rosidl NDEBUG issue
(https://github.com/ros2/rosidl/pull/739).
Signed-off-by: Arjav Patel <arjav1528@gmail.com>
Add a colcon.meta.in template that is substituted at build time with
Kconfig values. Key settings:
- Custom transport only (UCLIENT_PROFILE_CUSTOM_TRANSPORT=ON,
UCLIENT_PROFILE_STREAM_FRAMING=ON) -- actual UDP/serial callbacks
are wired in Phase 4.
- RCL_MICROROS=ON (Jazzy/Kilted renamed flag replacing the old
RCL_COMMAND_LINE_ENABLED/RCL_LOGGING_ENABLED pair).
- RCUTILS_NO_FILESYSTEM=OFF -- NuttX provides POSIX filesystem.
- Resource limits use @MAX_NODES@/@MAX_PUBLISHERS@ etc. placeholders
substituted from CONFIG_MICROROS_MAX_* Kconfig values.
Signed-off-by: Arjav Patel <arjav1528@gmail.com>
Add micro_ros_lib/ subdirectory with a .keep sentinel so the directory
is tracked by git before any generated build artifacts appear. All
colcon/fetch outputs land here and are gitignored by the parent .gitignore.
Signed-off-by: Arjav Patel <arjav1528@gmail.com>
