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44 lines
1.7 KiB
Makefile
44 lines
1.7 KiB
Makefile
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# Rust's own version of the target triple / quadruple.
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#
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# This does not have a sane default, and needs to be set in the architecture
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# files.
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# RUST_TARGET = ...
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# Flags that need to be added to the RIOT_CFLAGS passed to cargo in order to
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# make bindgen happy
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CARGO_EXTRACFLAGS ?=
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# Setting anything other than "debug" or "release" will necessitate additional
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# -Z unstable-options as of 2021-03 nightlies.
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CARGO_PROFILE ?= release
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# The Rust version to use.
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#
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# As long as C2Rust and riot-wrappers require nightly, the only alternative
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# here is to pick a particular nightly when something breaks.
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#
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# (Default is empty, because the riotbuild container picks a particular nightly
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# and sets it as a default; users without a nightly default need to either
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# override this here or in rustup)
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CARGO_CHANNEL ?=
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# Note that if we did not set this explicitly, CARGO_LIB would have to
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# understand which value cargo uses in absence of CARGO_TARGET_DIR, which would
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# be $(APPDIR)/target.
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#
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# For many cases, it would be beneficial to base this on BINDIRBASE rather than
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# BINDIR, for that would allow different boards using the same CPU to share
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# compiled code (unless they they build conditionally on environment variables,
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# like riot-sys does). This is not done for two reasons:
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#
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# * Overriding BINDIR (like is done in Murdock) would not take effect,
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# requiring additional overrides to enable out-of-tree building.
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#
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# * Switching back and forth between two boards of the same CPU requires
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# riot-sys rebuilds. (On its own, this would be outweighed by the shared
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# compilation of other modules).
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CARGO_TARGET_DIR = $(BINDIR)/target
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# The single Rust library to be built.
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CARGO_LIB = $(CARGO_TARGET_DIR)/$(RUST_TARGET)/${CARGO_PROFILE}/lib$(APPLICATION_RUST_MODULE).a
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