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6724884b93
Back when specific control of the Rust version used with RIOT was needed, CARGO_CHANNEL was added to explicitly set the Rust version with consideration for CI special cases. Rust's mechansims of selecting a toolchain can be used instead now.
32 lines
1.6 KiB
Makefile
32 lines
1.6 KiB
Makefile
# The profile with which to build Rust usually `release` or `dev`.
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#
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# This needs to be known to the build scripts because the path of the produced
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# binary is derived from this.
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CARGO_PROFILE ?= release
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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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#
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# The dev->debug and bench->release substitutions represent a historical
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# peculiarity in cargo: "For historical reasons, the `dev` and `test` profiles
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# are stored in the `debug` directory, and the `release` and `bench` profiles
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# are stored in the `release` directory. User-defined profiles are stored in a
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# directory with the same name as the profile".
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CARGO_LIB = $(CARGO_TARGET_DIR)/$(RUST_TARGET)/$(patsubst test,debug,$(patsubst dev,debug,$(patsubst bench,release,${CARGO_PROFILE})))/lib$(APPLICATION_RUST_MODULE).a
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