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libstdc++ selects between a lock-free and a mutex-based policy for std::shared_ptr reference counting based on this macro. Enabling this option forces the lock-free policy, which avoids pulling in the mutex-based implementation and can reduce code size. Note: the lock-free policy avoids embedding a mutex in each control block, saving about 88 bytes per shared_ptr, and improves performance by using atomic operations instead of mutex locking. Note: this option changes the ABI of libstdc++ atomic/shared_ptr helpers. It can be incompatible when linking against prebuilt libraries that were compiled without it, leading to link errors or undefined runtime behavior. Only enable it if all C++ objects and libraries in the build use the same setting.
19 lines
493 B
YAML
19 lines
493 B
YAML
# Documentation: .gitlab/ci/README.md#manifest-file-to-control-the-buildtest-apps
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components/cxx/test_apps:
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enable:
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- if: IDF_TARGET in ["esp32", "esp32c3", "esp32c61", "esp32p4"]
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temporary: true
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reason: the other targets are not tested yet
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depends_components:
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- cxx
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- pthread
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- freertos
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components/cxx/test_apps/atomic_lock_policy:
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enable:
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- if: IDF_TARGET == "esp32c5"
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disable:
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- if: IDF_TARGET != "esp32c5"
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reason: only built on ESP32-C5
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