Improve precompiled libraries handling #512
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General change: - library compilation bails out if the precompiled object is found. This allows mixed libraries that fallback using sources if no suitable precompiled object is found ARM float specification change: - Cortex M4+ allows specifying different flags for floating point ABI This patch introduces a second level of subfolder that MUST be used is -mfpu or -mfloat-abi are specified on the commandline Since there's no clear specification (unlike build.mcu), the values are extracted from c++ recipe For example, for a target which commandline contains `-mfloat-abi=hard -mfpu=fpv4-sp-d16` , the precompiled search path will be `$libfolder/cortex-m4/fpv4-sp-d16-hard` If that folder doesn't exist the library will be compiled from sources Fixes arduino/arduino-builder#256
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Unfortunately this is not working for me with the For the Arduino Nano 33 BLE, I see the following: when compiling the however when compiling for the MKR Zero, I get linker errors: Note the following changes are needed to the sketch: |
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@sandeepmistry that's because you need a specially crafted version of tflite library with the |
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@facchinm of course! Totally my bad :) ... the zip you provided links perfectly for MKR Zero! |
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hi folks, is there a way i could test the PR? |
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hihi folks checkin' in again if there's anything i can do to help test this PR |
If not needed maybe it's better to remove it, there are known use cases? |
cmaglie
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- Fix library priority selection (again) arduino/arduino-cli#574 - Improve precompiled libraries handling arduino/arduino-cli#512
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This patch restores some functionalities broken by arduino#512 . It introduces a BREAKING CHANGE to "precompiled" field If merged, "precompiled" means that the library ONLY contains a precompiled library and its headers. No file containing implementation will be compiled if the library is specified as such. Fixes arduino/arduino-builder#353 Tested with * arduino#512 (comment) (Nano33BLE and generic MKR board) * https://github.com/BoschSensortec/BSEC-Arduino-library (works after removing precompiled=true directive in library.properties) * https://github.com/vidor-libraries/USBBlaster (MKRVidor, fully precompiled)
facchinm
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This patch restores some functionalities broken by arduino#512 . It introduces a BREAKING CHANGE to "precompiled" field If merged, "precompiled" means that the library ONLY contains a precompiled library and its headers. No file containing implementation will be compiled if the library is specified as such. Tested with * arduino#512 (comment) (Nano33BLE and generic MKR board) * https://github.com/BoschSensortec/BSEC-Arduino-library (works after removing precompiled=true directive in library.properties) * https://github.com/vidor-libraries/USBBlaster (MKRVidor, fully precompiled)
facchinm
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Mar 24, 2020
This patch restores some functionalities broken by arduino#512 . It introduces a BREAKING CHANGE to "precompiled" field If merged, "precompiled" means that the library ONLY contains a precompiled library and its headers. No file containing implementation will be compiled if the library is specified as such. Fixes arduino/arduino-builder#353 Tested with * arduino#512 (comment) (Nano33BLE and generic MKR board) * https://github.com/BoschSensortec/BSEC-Arduino-library (works after removing precompiled=true directive in library.properties) * https://github.com/vidor-libraries/USBBlaster (MKRVidor, fully precompiled)
facchinm
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Apr 20, 2020
This patch restores some functionalities broken by arduino#512 . It introduces a BREAKING CHANGE to "precompiled" field If merged, "precompiled" means that the library ONLY contains a precompiled library and its headers. No file containing implementation will be compiled if the library is specified as such. Fixes arduino/arduino-builder#353 Tested with * arduino#512 (comment) (Nano33BLE and generic MKR board) * https://github.com/BoschSensortec/BSEC-Arduino-library (works after removing precompiled=true directive in library.properties) * https://github.com/vidor-libraries/USBBlaster (MKRVidor, fully precompiled)
cmaglie
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May 4, 2020
This patch restores some functionalities broken by arduino#512 . It introduces a BREAKING CHANGE to "precompiled" field If merged, "precompiled" means that the library ONLY contains a precompiled library and its headers. No file containing implementation will be compiled if the library is specified as such. Fixes arduino/arduino-builder#353 Tested with * arduino#512 (comment) (Nano33BLE and generic MKR board) * https://github.com/BoschSensortec/BSEC-Arduino-library (works after removing precompiled=true directive in library.properties) * https://github.com/vidor-libraries/USBBlaster (MKRVidor, fully precompiled)
cmaglie
pushed a commit
to facchinm/arduino-cli
that referenced
this pull request
May 4, 2020
This patch restores some functionalities broken by arduino#512 . It introduces a BREAKING CHANGE to "precompiled" field If merged, "precompiled" means that the library ONLY contains a precompiled library and its headers. No file containing implementation will be compiled if the library is specified as such. Fixes arduino/arduino-builder#353 Tested with * arduino#512 (comment) (Nano33BLE and generic MKR board) * https://github.com/BoschSensortec/BSEC-Arduino-library (works after removing precompiled=true directive in library.properties) * https://github.com/vidor-libraries/USBBlaster (MKRVidor, fully precompiled)
cmaglie
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May 8, 2020
* Fix mixed code precompiled libraries This patch restores some functionalities broken by #512 . It introduces a BREAKING CHANGE to "precompiled" field If merged, "precompiled" means that the library ONLY contains a precompiled library and its headers. No file containing implementation will be compiled if the library is specified as such. Fixes arduino/arduino-builder#353 Tested with * #512 (comment) (Nano33BLE and generic MKR board) * https://github.com/BoschSensortec/BSEC-Arduino-library (works after removing precompiled=true directive in library.properties) * https://github.com/vidor-libraries/USBBlaster (MKRVidor, fully precompiled) * Added test-build for Arduino_TensorFlowLite * Added another test for Bosch Sensor lib * Fallback search for precompiled libraries in non-fpu specific directories * variable renamed * Moved fixLDFLAG inside compileLibraries * Inlined FixLDflags * Using more paths helpers to simplify code * Added support for "precompiled=full" in library.properties This flag allow the deployment of a pure precompiled library that ships also the source code of the precompiled part. This allows to possibly compile-from-source as a fallback if the library does not provide a precompiled build for the current architecture. The "precompiled=true" instead has been ported back to the old behaviour (for libraries that ships a precompiled binary and support source code that wraps/uses the precompiled part). * Updated tests * Fixed test compile-build on very long paths on Windows * Removed constants.BUILD_PROPERTIES_COMPILER_LIBRARIES_LDFLAGS * Add space before "-L" gcc flag to allow multiple precompiled libs to be included Co-authored-by: Cristian Maglie <c.maglie@arduino.cc>
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General change:
This allows mixed libraries that fallback using sources if no suitable precompiled object is found
ARM float specification change:
Cortex M4+ allows specifying different flags for floating point ABI
This patch introduces a second level of subfolder that MUST be used if -mfpu or -mfloat-abi are specified on the commandline
Since there's no clear specification (unlike build.mcu), the values are extracted from c++ recipe
For example, for a target which commandline contains
-mfloat-abi=hard -mfpu=fpv4-sp-d16, the precompiled search path will be$libfolder/cortex-m4/fpv4-sp-d16-hardIf that folder doesn't exist the library will be compiled from sources
Open questions:
While reviewing this I found a code path just to add static libraries with non standard name (not starting with "lib" ). Should we keep it or not? @cmaglie
I don't like the name of the subfolder but it's super precise. We should be able to get away with
-float-abi=xxxonly but I'm not 100% sure. Experts' advise are welcome 🙂Fixes arduino/arduino-builder#256