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a5c7705e1f
The options passed to cargo are not universal, and thus can not apply to all commands as was previously documented.
39 lines
1.8 KiB
Makefile
39 lines
1.8 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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# Options passed into the Cargo build command.
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#
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# Most of these are populated by RIOT modules that are backed by Rust. Popular
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# options added by the user are `-Zbuild-std=core` (only available on nightly)
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# to apply LTO and profile configuration to the core library.
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CARGO_OPTIONS ?=
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