* added/improved global chroot support
* added RESPONSE_FILES flag to support optional response files (on linux the cmd param length is 2 megabytes). Default True
* added unified handling for archive and link response file (similar to includes)
* added COMPILE_C_AS_CPP flag to support compiling of c files as cpp. Default False
* added mbedToolchain.init() for post __init__ hooks
* added caching to mbedToolchain.need_update() to reduce IO hits
* added support to identify compiler warning/error column (supports ARMCC, GCC and IAR). Errors/warnings now report file@line,col
* added global TOOLCHAIN_PATHS which allows overriding/changing of the toolchain paths. Also simplified ARM-related paths
* added target.json to mbed library release (by @0xc0170)* migrated compile_worker() to utils.py for lightweight thread initialization
* improved run_cmd() performance by removing unnecessary check about the command being executed (should be checked once in the relevant toolchain instead)
* removed remnants of Goanna support (should be reimplemented as hooks to compile/link/archive instead)
* fixes for Python 2.7 compatibility (by @0xc0170)
* fixes for Exporters (by @0xc0170)
This commit includes
- Changing build option parameter from -O2 to -Os to reduce flash size of the
final binary pacakge.
The original parameter of -O2 is kept to circumvent the error
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46762 .
But this error has been long fixed and released in latest 4.9.x GCC compiler.
This change is necessary to reduce the generated binary size of mbed Client component to
avoid problem of getting images over 512 kB which is causing application to crash because of
Configuration Store problem https://github.com/ARMmbed/configuration-store/issues/21
Remove special case targets which have floating point enabled in
Newlib Nano from gcc.py. To enable floating point printf/scanf
for a target configure it to use the 'standard' default build in
targets.json rather than 'small'.
when in target.json "default_build": "small" is configured
- build.py+make.py
- uses linker option --specs=nano.specs
- macro MBED_RTOS_SINGLE_THREAD is defined
- exporting with project.py + make Makefile
- doesn't use the linker option --specs=nano.specs
- doesn't contain macro MBED_RTOS_SINGLE_THREAD
- removing redundancy as discussed in PR #2087:
- in target.json the core option can have only this values : "Cortex-M0", "Cortex-M0+", "Cortex-M1", "Cortex-M3", "Cortex-M4", "Cortex-M7", "Cortex-A9" - Cortex-M4F and Cortex-M7F removed
- in target.json an additional fpu option with values: "single" and "double" can be used
- build and export scripts are changed to handle this
- tested (compiling, running on hardware) with nucleo_f767 (cortex-m7 with double precision fpu), nucleo_f746 (cortex-m7 with single precision fpu), nucleo_f446 and nucleo_l467 (cortex-m4 with single precision fpu), teensy31 (cortex-m4 without fpu - only build test), nucleo_l073 (cortex-m0)
- singletest results are added to PR #2087 comments
- creating new core name Cortex_M7F_DP for a target with a double precision fpu
- adding new core name to arm.py to set compiler/linker flags to a double precision fpu when configured in target.json
- up to now: gcc wrote flag for a double precision fpu -> target with STM32F746 didn't run when using double variables - mcu has only single precision fpu
- changing gcc.py to use single precision for Cortex-M7 und double precision for Cortex_M7F_DP
tested with NUCLEO_F746, NUCLEO_F767 and build.py+make.py and exporting with project.py + compiling/flashing
- iar.py need a similar extention - I didn't change that yet because
- did not run at the moment - python exception
- currently worked on in PR #1948
ARM and GNU compilers currently are in a mode where they will accept VLAs
in C++ as an extension. IAR does not accept them in C++.
Avoid potential portability surprises by making GCC warn, and
deactivating the extension in ArmCC.
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.
Sam Grove
Bogdan Marinescu
Mihail Stoyanov
Martin Kojtal
Yogesh Pande
Russ Butler
Olaf Hagendorf
Erwan Gouriou
Laurent Meunier
Mihail Stoyanov
Jimmy Brisson
Kevin Bracey
Bogdan Marinescu
Vincenzo Frascino