Makes even CONFIG_DEBUG builds (locally) deterministic by
default: (re)building twice produces the same binaries. Also a partial
fix for incremental builds: running "make" twice in a row now recompiles
fewer files because version.h does not keep changing.
Also makes sure non-debug builds can't use uninitialized strings in some
future security accident.
Fixes:
./scripts/checkpatch.pl -g 'aa85e2c0e956c'
ERROR: Use of the '__DATE__' macro makes the build non-deterministic
+ .date = __DATE__,
ERROR: Use of the '__TIME__' macro makes the build non-deterministic
+ .time = __TIME__,
The previous behavior can be restored using any standard CMake
configuration method, example:
./scripts/xtensa-build-all.sh apl
cmake -B build_apl_gcc/ -DBUILD_COUNTERS=1
make -C build_apl_gcc
https://reproducible-builds.org/
Signed-off-by: Marc Herbert <marc.herbert@intel.com>
One-touch "make -C installer rsync" combines fast incremental build,
staging and deploy in one command.
Signed-off-by: Marc Herbert <marc.herbert@intel.com>
More specifically replacing sof-bin/go.sh and sof-bin/publish.sh and
also sof/scripts/sof-target-install.sh eventually.
"make install" code has always belonged to source repositories because
developers need to install too and we want everyone to use the same
installers. It's also easier to have all the information in a single
place.
Once the layout in sof-bin mirrors the /lib/firmware/intel layout
exactly, sof-bin does not need any installation code any more.
Mixing source and binaries in the same repo is also a "code smell",
notably because it forces branching them together.
Using a higher level build tool for installation instead of plain
scripts has a few benefits:
- Multiple entry points: easy to invoke (and test) any part of the
installer individually
- ... while invoking dependencies automatically.
- Other features "for free" like:
- errexit
- error messages like "dunno how to build file x"
- commands are logged by default
- Also gets rid of most of the large code duplication in go.sh and
publish.sh, so:
- Enabling or disabling a platform is a 3-character change
- Allows platform selection in local config file (even just one platform)
- Much harder to add inconsistencies
- Much easier to review correctness, for instance no need to
scrutinize every line to see which platforms are aliased.
Signed-off-by: Marc Herbert <marc.herbert@intel.com>
Marc Herbert