7639e613a4
Rationale: - There is no port under targets/ that would use it. All of them turn it off when building. - That's no surprise, as jerry-libc supports no barebone MCUs but posix targets with syscalls only. Actually, that's Linux only, because macOS builds have turned off the use of jerry-libc a while ago. - And there is no point in maintaining a highly restricted set of libc functions: as soon as someone wants to use JerryScript in a scenario that needs more functions than jerry-main, they have to choose a different libc (most problably the compiler's default one). I think that we should not keep supporting an otherwise unused library for the purposes of jerry-main on arm/x86/x64-linux only. JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu
3.5 KiB
Setting up prerequisites
Currently, only Ubuntu 14.04+ is officially supported as primary development environment.
There are several dependencies, that should be installed manually. The following list is the absolute minimum for building:
gccor any C99-compliant compiler (native or cross, e.g., arm-none-eabi)cmake>=2.8.12.2
Several scripts and tools help the building and development process, thus it is recommended to have the following installed as well:
bash>=4.3.11cppcheck>=1.61vera++>=1.2.1python>=2.7.6
sudo apt-get install gcc gcc-arm-none-eabi cmake cppcheck vera++ python
To make our scripts run correctly, several shell utilities should be available on the system:
awkbcfindsed
Building JerryScript
To build debug version for Linux
python tools/build.py --debug
To build debug version for Linux without LTO (Link Time Optimization)
python tools/build.py --debug --lto=off
Add custom arguments to CMake
python tools/build.py --cmake-param=CMAKE_PARAM
Set a profile mode (ES5.1, subset of ES2015, minimal)
python tools/build.py --profile=es5.1|es2015-subset|minimal
See also the related README.md.
Use (compiler-default, external) libc
The default libc is the compiler-default libc but you can use an external libc as well:
- compiler-default libc:
python tools/build.py
- external libc:
python tools/build.py --compile-flag="-nostdlib -I/path/to/ext-libc/include" --link-lib="ext-c"
Add toolchain file
The cmake dir already contains some usable toolchain files, which you can use in the following format:
python tools/build.py --toolchain=TOOLCHAIN
For example the cross-compile to RaspberryPi 2 is something like this:
python tools/build.py --toolchain=cmake/toolchain_linux_armv7l.cmake
Use system memory allocator
python tools/build.py --system-allocator=on
Note: System allocator is only supported on 32 bit systems.
Enable 32bit compressed pointers
python tools/build.py --cpointer-32bit=on
Note: There is no compression/decompression on 32 bit systems, if enabled.
Change default heap size (512K)
python tools/build.py --mem-heap=256
If you would like to use more than 512K, then you must enable the 32 bit compressed pointers.
python tools/build.py --cpointer-32bit=on --mem-heap=1024
Note: The heap size will be allocated statically at compile time, when JerryScript memory allocator is used.
To get a list of all the available buildoptions for Linux
python tools/build.py --help
Checking patch
python tools/run-tests.py --precommit
Running only one type of test
To run build option tests
python tools/run-tests.py --buildoption-test
To run unittests
python tools/run-tests.py --unittests
To run jerry-tests
python tools/run-tests.py --jerry-tests
To run jerry-test-suite
python tools/run-tests.py --jerry-test-suite
To run signed-off check
python tools/run-tests.py --check-signed-off
To run cppcheck
python tools/run-tests.py --check-cppcheck
To run vera check
python tools/run-tests.py --check-vera
To get a list of all the available test options
python tools/run-tests.py --help