The IAR assembler doesn't accept '--preinclude', but it accepts -D.
This commit changes the way the config-related macros are propagated
to the IAR assembler to use '-D' instead of '--preinclude'. This is
the only change related to functionality, the others are small,
backward compatible changes to the config code to make passing arguments
to the toolchain instances easier.
Tested by compiled blinky with IAR, GCC_ARM and ARM for K64F.
IAR defaults to C99 mode, but doesn't enable VLAs by default. Enable them
to make it more conformant.
We don't have much if any code using actual variable-length arrays, but
variably-modified types are occasionally used. The same switch controls
both.
(VLAs were actually already enabled in most of the project export
templates, but not the build script).
This commit uses the previously introduced feature of generating
configuration data as a C header file rather than as command line macro
definitions. Each toolchain was modified to use prefix headers if
requested, and build_api.py was modified to set up the toolchain's
prefix header content using the data generated by the config system.
Tested by compiling blinky for GCC and ARMCC. I'm having a few issues
with my IAR license currently, but both ARMCC and IAR use the same
`--preinclude` option for prefix headers, so this shouldn't be an issue.
Note that at the moment all exporters still use the previous
configuration data mechanism (individual macro definitions as opposed to
a prefix header). Exporters will be updated in one or more PRs that will
follow.
- vla flag is not compatible with c++ (not supported), it generates an error
in the IDE. Therefore we remove it
- common flags - add dlib and thum to the common flags.
- cpu flag is for only runtime cmd, IDE sets it via defined MCU, not required.
Jimmy Brisson
Bogdan Marinescu
Sam Grove
Kevin Bracey
Martin Kojtal
Mihail Stoyanov