rust: Set release profile settings
* codegen-units, lto, opt-level - Set to values to optimize binary size[1]. * overflow-checks - Enabled because in release mode, integer overflows are defined as two's complement wrap[2]. It is highly unlikely that any program is intentionally relying on this behaviour; it would be better to panic instead of continue execution in this case. * debug, debug-assertions, panic, rpath - Set to their default (release) values, to override any settings made by packages, e.g. ripgrep sets debug = 1[3]. [1]: https://github.com/johnthagen/min-sized-rust [2]: https://huonw.github.io/blog/2016/04/myths-and-legends-about-integer-overflow-in-rust/ [3]: https://github.com/BurntSushi/ripgrep/blob/13.0.0/Cargo.toml#L79-L80 Signed-off-by: Jeffery To <jeffery.to@gmail.com>
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@ -81,7 +81,14 @@ CARGO_PKG_CONFIG_VARS= \
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$(RUST_SCCACHE_VARS) \
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CARGO_BUILD_TARGET=$(RUSTC_TARGET_ARCH) \
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CARGO_HOME=$(CARGO_HOME) \
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CARGO_PROFILE_RELEASE_OPT_LEVEL=s \
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CARGO_PROFILE_RELEASE_CODEGEN_UNITS=1 \
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CARGO_PROFILE_RELEASE_DEBUG=false \
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CARGO_PROFILE_RELEASE_DEBUG_ASSERTIONS=false \
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CARGO_PROFILE_RELEASE_LTO=true \
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CARGO_PROFILE_RELEASE_OPT_LEVEL=z \
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CARGO_PROFILE_RELEASE_OVERFLOW_CHECKS=true \
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CARGO_PROFILE_RELEASE_PANIC=unwind \
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CARGO_PROFILE_RELEASE_RPATH=false \
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CARGO_TARGET_$(subst -,_,$(call toupper,$(RUSTC_TARGET_ARCH)))_LINKER=$(TARGET_CC_NOCACHE) \
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RUSTFLAGS="$(CARGO_RUSTFLAGS)" \
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TARGET_CC=$(TARGET_CC_NOCACHE) \
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