34d97ebb4a
* fbt: fixed linking updater as latest build dir for "flash_usb" * fbt: fixed cdb regeneration logic; refactored build/latest linking logic * fbt: docs update Co-authored-by: あく <alleteam@gmail.com>
87 lines
5.0 KiB
Markdown
87 lines
5.0 KiB
Markdown
# Flipper Build Tool
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FBT is the entry point for firmware-related commands and utilities.
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It is invoked by `./fbt` in firmware project root directory. Internally, it is a wrapper around [scons](https://scons.org/) build system.
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## Requirements
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Please install Python packages required by assets build scripts: `pip3 install -r scripts/requirements.txt`
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Make sure that `gcc-arm-none-eabi` toolchain & OpenOCD executables are in system's PATH.
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## NB
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* `fbt` constructs all referenced environments & their targets' dependency trees on startup. So, to keep startup time as low as possible, we're hiding construction of certain targets behind command-line options.
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* `fbt` always performs `git submodule update --init` on start, unless you set `FBT_NO_SYNC=1` in environment:
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* On Windows, that's `set "FBT_NO_SYNC=1"` in the shell you're running `fbt` from
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* On \*nix, it's `$ FBT_NO_SYNC=1 ./fbt ...`
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* `fbt` builds updater & firmware in separate subdirectories in `build`, with their names depending on optimization settings (`COMPACT` & `DEBUG` options). However, for ease of integration with IDEs, latest built variant's directory is always linked as `built/latest`. Additionally, `compile_commands.json` is generated in that folder, which is used for code completion support in IDE.
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## Invoking FBT
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To build with FBT, call it specifying configuration options & targets to build. For example,
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`./fbt --with-updater COMPACT=1 DEBUG=0 VERBOSE=1 updater_package copro_dist`
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To run cleanup (think of `make clean`) for specified targets, add `-c` option.
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## FBT targets
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FBT keeps track of internal dependencies, so you only need to build the highest-level target you need, and FBT will make sure everything they depend on is up-to-date.
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### High-level (what you most likely need)
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- `fw_dist` - build & publish firmware to `dist` folder. This is a default target, when no other are specified
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- `updater_package` - build self-update package. _Requires `--with-updater` option_
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- `copro_dist` - bundle Core2 FUS+stack binaries for qFlipper
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- `flash` - flash attached device with OpenOCD over ST-Link
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- `flash_usb` - build, upload and install update package to device over USB. _Requires `--with-updater` option_
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- `debug` - build and flash firmware, then attach with gdb with firmware's .elf loaded
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- `debug_updater` - attach gdb with updater's .elf loaded. _Requires `--with-updater` option_
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- `debug_other` - attach gdb without loading any .elf. Allows to manually add external elf files with `add-symbol-file` in gdb.
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- `blackmagic` - debug firmware with Blackmagic probe (WiFi dev board)
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- `openocd` - just start OpenOCD
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- `get_blackmagic` - output blackmagic address in gdb remote format. Useful for IDE integration
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### Firmware targets
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- `firmware_extapps` - build all plug-ins as separate .elf files
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- `firmware_snake_game`, etc - build single plug-in as .elf by its name
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- Check out `--extra-ext-apps` for force adding extra apps to external build
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- `firmware_snake_game_list`, etc - generate source + assembler listing for app's .elf
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- `flash`, `firmware_flash` - flash current version to attached device with OpenOCD over ST-Link
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- `flash_blackmagic` - flash current version to attached device with Blackmagic probe
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- `firmware_all`, `updater_all` - build basic set of binaries
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- `firmware_list`, `updater_list` - generate source + assembler listing
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### Assets
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- `resources` - build resources and their Manifest
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- `dolphin_ext` - process dolphin animations for SD card
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- `icons` - generate .c+.h for icons from png assets
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- `proto` - generate .pb.c+.pb.h for .proto sources
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- `proto_ver` - generate .h with protobuf version
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- `dolphin_internal`, `dolphin_blocking` - generate .c+.h for corresponding dolphin assets
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## Command-line parameters
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- `--options optionfile.py` (default value `fbt_options.py`) - load file with multiple configuration values
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- `--with-updater` - enables updater-related targets and dependency tracking. Enabling this options introduces extra startup time costs, so use it when bundling update packages. Or if you have a fast computer and don't care about a few extra seconds of startup time
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- `--extra-int-apps=app1,app2,appN` - forces listed apps to be built as internal with `firmware` target
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- `--extra-ext-apps=app1,app2,appN` - forces listed apps to be built as external with `firmware_extapps` target
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## Configuration
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Default configuration variables are set in configuration file `fbt_options.py`.
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Values set on command-line have higher precedence over configuration file.
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You can find out available options with `./fbt -h`.
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### Firmware application set
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You can create customized firmware builds by modifying application list to be included in the build. Application presets are configured with `FIRMWARE_APPS` option, which is a map(configuration_name:str -> application_list:tuple(str)). To specify application set to use in a build, set `FIRMWARE_APP_SET` to its name.
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For example, to build firmware image with unit tests, run `./fbt FIRMWARE_APP_SET=unit_tests`.
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Check out `fbt_options.py` for details.
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