Note this change does NOT affect Zephyr builds in any shape or form as
Zephyr builds simply don't use the CMake files changed by this commit.
Downloading missing submodules at build time was never a good idea;
always a hack. Downloading and building should always be kept separate
from each other for version control and bill of materials reasons and to
support "off-line" builds; build inputs should always be available.
Now that Zephyr builds have just moved away from git submodules
(replaced by west), stop sneakily downloading missing submodules at
build time while the user cannot notice, overwhelmed by the volume of
build logs. Someone building XTOS first and Zephyr second could
unknowningly end up in a "hybrid" and undesired situation where git
submodules and west would be BOTH pointing at the same rimage clone.
Signed-off-by: Marc Herbert <marc.herbert@intel.com>
This is motivated by the zephyr.elf build that does not need rimage at
all.
Also build smex later, only when it's needed.
After building and deleting the rimage/ clone, a plain SOF clean +
RE-build now fails much later: it now fails AFTER successfully building
the sof binary, only when it tries to build either bootloader,
boot_module or base_module that actually need rimage:
[ 87%] Performing configure step for 'rimage_ep'
CMake Error: The source directory "/home/SOF/sof/rimage" does not appear
to contain CMakeLists.txt.
Signed-off-by: Marc Herbert <marc.herbert@intel.com>
As incredible as it sounds, some people run neither "git status" nor
"git diff" every few minutes and not even when their build fails. There
has been reports that they're puzzled when they miss a required
submodule update. This is an attempt to draw their attention based on
the assumption that they pay more attention to the CMake logs.
Signed-off-by: Marc Herbert <marc.herbert@intel.com>
- Add a simple test in cmake to download submodules only when rimage is
missing. This stops randomly changing the source code from one build
to the next and overwriting any submodule work in progress.
- Remove the GIT_SUBMODULE option which is now useless because rimage is
not optional for sof
- Add a --merge option for safety. It makes zero difference right now
but could save work in progress if we ever add more
submodules (hopefully not) and someone struggles with submodules and
ends up in a partially initialized state.
Git submodules are rarely ever the answer; these few changes make them a
bit more usable.
Signed-off-by: Marc Herbert <marc.herbert@intel.com>
This adds the necessary bits to update git submodules when
cmake is run, with the option to turn this behavior off if
needed. This is in preparation to use fw.h and manifest.h
from the rimage repo to prevent having two copies of each
file in two different repos. Obviously, the files in
the submodules must exist before building the firmware,
so run git submodule update to checkout the files.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Marc Herbert