Patch 765d2f5e46 did not
evaluate the #if SCYLLA_BUILD_MODE directives properly
and it always matched SCYLLA_BULD_MODE == release.
This change fixes that by defining numerical codes
for each build mode and using macro expansion to match
the define SCYLLA_BUILD_MODE against these codes.
Also, ./configure.py was changes to pass SCYLLA_BUILD_MODE
to all .cc source files, and makes sure it is defined
in build_mode.hh.
Support was added for coverage build mode,
and an #error was added if SCYLLA_BUILD_MODE
was not recognized by the #if ladder directives.
Additional checks verifying the expected SEASTAR_DEBUG
against SCYLLA_BUILD_MODE were added as well,
Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
Closes#11387
Currently SCYLLA_BULD_MODE is defined as a string by the cxxflags
generated by configure.py. This is not very useful since one cannot use
it in a @if preprocessor directive.
Instead, use -DSCYLLA_BULD_MODE=release, for example, and define a
SCYLLA_BULD_MODE_STR as the dtirng representation of it.
In addition define the respective
SCYLLA_BUILD_MODE_{RELEASE,DEV,DEBUG,SANITIZE} macros that can be easily
used in @ifdef (or #ifndef :)) for conditional compilation.
The planned use case for it is to enable a task_manager test module only
in non-release modes.
Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
Closes#11357
