Add target_env = "macabi" and target_env = "sim"#1781
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ehuss merged 2 commits intorust-lang:masterfrom Oct 2, 2025
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Add target_env = "macabi" and target_env = "sim"#1781ehuss merged 2 commits intorust-lang:masterfrom
target_env = "macabi" and target_env = "sim"#1781ehuss merged 2 commits intorust-lang:masterfrom
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Replaces `target_abi` variants. The old variants are still available, but may be deprecated in the future.
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…sleywiser Add `target_env = "macabi"` and `target_env = "sim"` [RFC 2992](rust-lang/rfcs#2992) ([tracking issue](rust-lang#80970)) introduced `cfg(target_abi = ...)` with the original motivation being Mac Catalyst and Apple Simulator targets. These do not actually have a changed calling convention in the same sense that e.g. `cfg(target_abi = "eabihf")` or pointer authentication (`arm64e`) does, see rust-lang#133331. Specifically, for Apple Simulator targets, the binary runs under the following conditions: - Runs with the host macOS kernel (but in a mode configured for iOS/tvOS/...). - Uses frameworks for the specific simulator version being targetted. - System file accesses need to be made relative to the `IPHONE_SIMULATOR_ROOT` environment variable. - Uses host GPUs directly. And for Mac Catalyst: - Runs with the host macOS kernel (but in a mode configured for iOS). - Uses mostly host macOS frameworks (though with a few things changed, e.g. the [`NSImageResizingModeStretch`](https://developer.apple.com/documentation/appkit/nsimage/resizingmode-swift.enum/stretch?language=objc) enum has a different value). - Uses host GPUs, camera and other peripherals directly. As can be seen, these seem better suited as `target_env`s, since it really is the environment that the binary is running under that's changed (regardless of the Mac Catalyst "macabi" having "abi" in the name). So this PR adds `target_env = "sim"` and `target_env = "macabi"`, with the idea of possibly deprecating `target_abi = "sim"` and `target_abi = "macabi"` in the far future. This affects iOS Tier 2 targets (`aarch64-apple-ios-sim`, `x86_64-apple-ios`, `aarch64-apple-ios-macabi` and `x86_64-apple-ios-macabi`), and probably needs a compiler FCP. Fixes rust-lang#133331. Reference PR: rust-lang/reference#1781. Cargo doc PR: rust-lang/cargo#15404. r? compiler CC `@workingjubilee` CC target maintainers `@deg4uss3r` `@thomcc` `@badboy` `@BlackHoleFox` `@madsmtm` `@agg23`
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Rollup merge of #139451 - madsmtm:apple-target-env-abi, r=wesleywiser Add `target_env = "macabi"` and `target_env = "sim"` [RFC 2992](rust-lang/rfcs#2992) ([tracking issue](#80970)) introduced `cfg(target_abi = ...)` with the original motivation being Mac Catalyst and Apple Simulator targets. These do not actually have a changed calling convention in the same sense that e.g. `cfg(target_abi = "eabihf")` or pointer authentication (`arm64e`) does, see #133331. Specifically, for Apple Simulator targets, the binary runs under the following conditions: - Runs with the host macOS kernel (but in a mode configured for iOS/tvOS/...). - Uses frameworks for the specific simulator version being targetted. - System file accesses need to be made relative to the `IPHONE_SIMULATOR_ROOT` environment variable. - Uses host GPUs directly. And for Mac Catalyst: - Runs with the host macOS kernel (but in a mode configured for iOS). - Uses mostly host macOS frameworks (though with a few things changed, e.g. the [`NSImageResizingModeStretch`](https://developer.apple.com/documentation/appkit/nsimage/resizingmode-swift.enum/stretch?language=objc) enum has a different value). - Uses host GPUs, camera and other peripherals directly. As can be seen, these seem better suited as `target_env`s, since it really is the environment that the binary is running under that's changed (regardless of the Mac Catalyst "macabi" having "abi" in the name). So this PR adds `target_env = "sim"` and `target_env = "macabi"`, with the idea of possibly deprecating `target_abi = "sim"` and `target_abi = "macabi"` in the far future. This affects iOS Tier 2 targets (`aarch64-apple-ios-sim`, `x86_64-apple-ios`, `aarch64-apple-ios-macabi` and `x86_64-apple-ios-macabi`), and probably needs a compiler FCP. Fixes #133331. Reference PR: rust-lang/reference#1781. Cargo doc PR: rust-lang/cargo#15404. r? compiler CC `@workingjubilee` CC target maintainers `@deg4uss3r` `@thomcc` `@badboy` `@BlackHoleFox` `@madsmtm` `@agg23`
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Update books ## rust-lang/reference 4 commits in e11adf6016a362766eea5a3f9832e193994dd0c8..8efb9805686722dba511b7b27281bb6b77d32130 2025-10-06 15:04:20 UTC to 2025-10-01 17:30:01 UTC - Clarify that "or it is dropped" is meant restrictively (rust-lang/reference#2035) - add lifetime extension tests for tuple struct temporaries (rust-lang/reference#2033) - Add `target_env = "macabi"` and `target_env = "sim"` (rust-lang/reference#1781) - Typo fixes for the Tokens page (additions -> editions) (rust-lang/reference#2031)
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Update books ## rust-lang/reference 4 commits in e11adf6016a362766eea5a3f9832e193994dd0c8..8efb9805686722dba511b7b27281bb6b77d32130 2025-10-06 15:04:20 UTC to 2025-10-01 17:30:01 UTC - Clarify that "or it is dropped" is meant restrictively (rust-lang/reference#2035) - add lifetime extension tests for tuple struct temporaries (rust-lang/reference#2033) - Add `target_env = "macabi"` and `target_env = "sim"` (rust-lang/reference#1781) - Typo fixes for the Tokens page (additions -> editions) (rust-lang/reference#2031)
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Rollup merge of #147407 - rustbot:docs-update, r=ehuss Update books ## rust-lang/reference 4 commits in e11adf6016a362766eea5a3f9832e193994dd0c8..8efb9805686722dba511b7b27281bb6b77d32130 2025-10-06 15:04:20 UTC to 2025-10-01 17:30:01 UTC - Clarify that "or it is dropped" is meant restrictively (rust-lang/reference#2035) - add lifetime extension tests for tuple struct temporaries (rust-lang/reference#2033) - Add `target_env = "macabi"` and `target_env = "sim"` (rust-lang/reference#1781) - Typo fixes for the Tokens page (additions -> editions) (rust-lang/reference#2031)
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Update books ## rust-lang/reference 4 commits in e11adf6016a362766eea5a3f9832e193994dd0c8..8efb9805686722dba511b7b27281bb6b77d32130 2025-10-06 15:04:20 UTC to 2025-10-01 17:30:01 UTC - Clarify that "or it is dropped" is meant restrictively (rust-lang/reference#2035) - add lifetime extension tests for tuple struct temporaries (rust-lang/reference#2033) - Add `target_env = "macabi"` and `target_env = "sim"` (rust-lang/reference#1781) - Typo fixes for the Tokens page (additions -> editions) (rust-lang/reference#2031)
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Update books ## rust-lang/reference 4 commits in e11adf6016a362766eea5a3f9832e193994dd0c8..8efb9805686722dba511b7b27281bb6b77d32130 2025-10-06 15:04:20 UTC to 2025-10-01 17:30:01 UTC - Clarify that "or it is dropped" is meant restrictively (rust-lang/reference#2035) - add lifetime extension tests for tuple struct temporaries (rust-lang/reference#2033) - Add `target_env = "macabi"` and `target_env = "sim"` (rust-lang/reference#1781) - Typo fixes for the Tokens page (additions -> editions) (rust-lang/reference#2031)
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Replaces
target_abivariants. The old variants are still available, but may be deprecated in the future, so I've removed them as examples from the reference.Depends on rust-lang/rust#139451.