From c788dcc674c3067461e1dcfc33a52fe73bd409ba Mon Sep 17 00:00:00 2001 From: Mads Marquart Date: Sat, 7 Sep 2024 13:51:14 +0200 Subject: [PATCH] Test codegen when setting deployment target --- src/tools/run-make-support/src/lib.rs | 2 +- src/tools/run-make-support/src/targets.rs | 18 ++ .../tidy/src/allowed_run_make_makefiles.txt | 1 - tests/run-make/apple-deployment-target/foo.rs | 1 + .../run-make/apple-deployment-target/rmake.rs | 157 ++++++++++++++++++ .../run-make/macos-deployment-target/Makefile | 21 --- .../with_deployment_target.rs | 4 - 7 files changed, 177 insertions(+), 27 deletions(-) create mode 100644 tests/run-make/apple-deployment-target/foo.rs create mode 100644 tests/run-make/apple-deployment-target/rmake.rs delete mode 100644 tests/run-make/macos-deployment-target/Makefile delete mode 100644 tests/run-make/macos-deployment-target/with_deployment_target.rs diff --git a/src/tools/run-make-support/src/lib.rs b/src/tools/run-make-support/src/lib.rs index fefafb95b33..980bd37dca8 100644 --- a/src/tools/run-make-support/src/lib.rs +++ b/src/tools/run-make-support/src/lib.rs @@ -73,7 +73,7 @@ pub mod rfs { pub use run::{cmd, run, run_fail, run_with_args}; /// Helpers for checking target information. -pub use targets::{is_darwin, is_msvc, is_windows, llvm_components_contain, target, uname}; +pub use targets::{is_darwin, is_msvc, is_windows, llvm_components_contain, target, uname, apple_os}; /// Helpers for building names of output artifacts that are potentially target-specific. pub use artifact_names::{ diff --git a/src/tools/run-make-support/src/targets.rs b/src/tools/run-make-support/src/targets.rs index 5dcb0b83430..896abb73fc1 100644 --- a/src/tools/run-make-support/src/targets.rs +++ b/src/tools/run-make-support/src/targets.rs @@ -28,6 +28,24 @@ pub fn is_darwin() -> bool { target().contains("darwin") } +/// Get the target OS on Apple operating systems. +#[must_use] +pub fn apple_os() -> &'static str { + if target().contains("darwin") { + "macos" + } else if target().contains("ios") { + "ios" + } else if target().contains("tvos") { + "tvos" + } else if target().contains("watchos") { + "watchos" + } else if target().contains("visionos") { + "visionos" + } else { + panic!("not an Apple OS") + } +} + /// Check if `component` is within `LLVM_COMPONENTS` #[must_use] pub fn llvm_components_contain(component: &str) -> bool { diff --git a/src/tools/tidy/src/allowed_run_make_makefiles.txt b/src/tools/tidy/src/allowed_run_make_makefiles.txt index 22d1e93bf39..50d21c7ed4c 100644 --- a/src/tools/tidy/src/allowed_run_make_makefiles.txt +++ b/src/tools/tidy/src/allowed_run_make_makefiles.txt @@ -6,7 +6,6 @@ run-make/incr-add-rust-src-component/Makefile run-make/issue-84395-lto-embed-bitcode/Makefile run-make/jobserver-error/Makefile run-make/libs-through-symlinks/Makefile -run-make/macos-deployment-target/Makefile run-make/split-debuginfo/Makefile run-make/symbol-mangling-hashed/Makefile run-make/translation/Makefile diff --git a/tests/run-make/apple-deployment-target/foo.rs b/tests/run-make/apple-deployment-target/foo.rs new file mode 100644 index 00000000000..f328e4d9d04 --- /dev/null +++ b/tests/run-make/apple-deployment-target/foo.rs @@ -0,0 +1 @@ +fn main() {} diff --git a/tests/run-make/apple-deployment-target/rmake.rs b/tests/run-make/apple-deployment-target/rmake.rs new file mode 100644 index 00000000000..b2d1af65177 --- /dev/null +++ b/tests/run-make/apple-deployment-target/rmake.rs @@ -0,0 +1,157 @@ +//! Test codegen when setting deployment targets on Apple platforms. +//! +//! This is important since its a compatibility hazard. The linker will +//! generate load commands differently based on what minimum OS it can assume. +//! +//! See https://github.com/rust-lang/rust/pull/105123. + +//@ only-apple + +use run_make_support::{apple_os, cmd, run_in_tmpdir, rustc, target}; + +/// Run vtool to check the `minos` field in LC_BUILD_VERSION. +/// +/// On lower deployment targets, LC_VERSION_MIN_MACOSX, LC_VERSION_MIN_IPHONEOS and similar +/// are used instead of LC_BUILD_VERSION - these have a `version` field, so also check that. +#[track_caller] +fn minos(file: &str, version: &str) { + cmd("vtool") + .arg("-show-build") + .arg(file) + .run() + .assert_stdout_contains_regex(format!("(minos|version) {version}")); +} + +fn main() { + // These versions should generally be higher than the default versions + let (env_var, example_version, higher_example_version) = match apple_os() { + "macos" => ("MACOSX_DEPLOYMENT_TARGET", "12.0", "13.0"), + // armv7s-apple-ios and i386-apple-ios only supports iOS 10.0 + "ios" if target() == "armv7s-apple-ios" || target() == "i386-apple-ios" => { + ("IPHONEOS_DEPLOYMENT_TARGET", "10.0", "10.0") + } + "ios" => ("IPHONEOS_DEPLOYMENT_TARGET", "15.0", "16.0"), + "watchos" => ("WATCHOS_DEPLOYMENT_TARGET", "7.0", "9.0"), + "tvos" => ("TVOS_DEPLOYMENT_TARGET", "14.0", "15.0"), + "visionos" => ("XROS_DEPLOYMENT_TARGET", "1.1", "1.2"), + _ => unreachable!(), + }; + let default_version = + rustc().target(target()).env_remove(env_var).print("deployment-target").run().stdout_utf8(); + let default_version = default_version.strip_prefix("deployment_target=").unwrap().trim(); + + // Test that version makes it to the object file. + run_in_tmpdir(|| { + let rustc = || { + let mut rustc = rustc(); + rustc.target(target()); + rustc.crate_type("lib"); + rustc.emit("obj"); + rustc.input("foo.rs"); + rustc.output("foo.o"); + rustc + }; + + rustc().env(env_var, example_version).run(); + minos("foo.o", example_version); + + // FIXME(madsmtm): Doesn't work on Mac Catalyst and the simulator. + if !target().contains("macabi") && !target().contains("sim") { + rustc().env_remove(env_var).run(); + minos("foo.o", default_version); + } + }); + + // Test that version makes it to the linker when linking dylibs. + run_in_tmpdir(|| { + // Certain watchOS targets don't support dynamic linking, so we disable the test on those. + if apple_os() == "watchos" { + return; + } + + let rustc = || { + let mut rustc = rustc(); + rustc.target(target()); + rustc.crate_type("dylib"); + rustc.input("foo.rs"); + rustc.output("libfoo.dylib"); + rustc + }; + + rustc().env(env_var, example_version).run(); + minos("libfoo.dylib", example_version); + + // FIXME(madsmtm): Deployment target is not currently passed properly to linker + // rustc().env_remove(env_var).run(); + // minos("libfoo.dylib", default_version); + + // Test with ld64 instead + + rustc().arg("-Clinker-flavor=ld").env(env_var, example_version).run(); + minos("libfoo.dylib", example_version); + + rustc().arg("-Clinker-flavor=ld").env_remove(env_var).run(); + minos("libfoo.dylib", default_version); + }); + + // Test that version makes it to the linker when linking executables. + run_in_tmpdir(|| { + let rustc = || { + let mut rustc = rustc(); + rustc.target(target()); + rustc.crate_type("bin"); + rustc.input("foo.rs"); + rustc.output("foo"); + rustc + }; + + // FIXME(madsmtm): Doesn't work on watchOS for some reason? + if !target().contains("watchos") { + rustc().env(env_var, example_version).run(); + minos("foo", example_version); + + // FIXME(madsmtm): Deployment target is not currently passed properly to linker + // rustc().env_remove(env_var).run(); + // minos("foo", default_version); + } + + // Test with ld64 instead + + rustc().arg("-Clinker-flavor=ld").env(env_var, example_version).run(); + minos("foo", example_version); + + rustc().arg("-Clinker-flavor=ld").env_remove(env_var).run(); + minos("foo", default_version); + }); + + // Test that changing the deployment target busts the incremental cache. + run_in_tmpdir(|| { + let rustc = || { + let mut rustc = rustc(); + rustc.target(target()); + rustc.incremental("incremental"); + rustc.crate_type("lib"); + rustc.emit("obj"); + rustc.input("foo.rs"); + rustc.output("foo.o"); + rustc + }; + + // FIXME(madsmtm): Incremental cache is not yet busted + // https://github.com/rust-lang/rust/issues/118204 + let higher_example_version = example_version; + let default_version = example_version; + + rustc().env(env_var, example_version).run(); + minos("foo.o", example_version); + + rustc().env(env_var, higher_example_version).run(); + minos("foo.o", higher_example_version); + + // FIXME(madsmtm): Doesn't work on Mac Catalyst and the simulator. + if !target().contains("macabi") && !target().contains("sim") { + rustc().env_remove(env_var).run(); + minos("foo.o", default_version); + } + }); +} diff --git a/tests/run-make/macos-deployment-target/Makefile b/tests/run-make/macos-deployment-target/Makefile deleted file mode 100644 index 757ca699535..00000000000 --- a/tests/run-make/macos-deployment-target/Makefile +++ /dev/null @@ -1,21 +0,0 @@ -# only-macos -# -# Check that a set deployment target actually makes it to the linker. -# This is important since its a compatibility hazard. The linker will -# generate load commands differently based on what minimum OS it can assume. - -include ../tools.mk - -ifeq ($(strip $(shell uname -m)),arm64) - GREP_PATTERN = "minos 11.0" -else - GREP_PATTERN = "version 10.13" -endif - -OUT_FILE=$(TMPDIR)/with_deployment_target.dylib -all: - env MACOSX_DEPLOYMENT_TARGET=10.13 $(RUSTC) with_deployment_target.rs -o $(OUT_FILE) -# XXX: The check is for either the x86_64 minimum OR the aarch64 minimum (M1 starts at macOS 11). -# They also use different load commands, so we let that change with each too. The aarch64 check -# isn't as robust as the x86 one, but testing both seems unneeded. - vtool -show-build $(OUT_FILE) | $(CGREP) -e $(GREP_PATTERN) diff --git a/tests/run-make/macos-deployment-target/with_deployment_target.rs b/tests/run-make/macos-deployment-target/with_deployment_target.rs deleted file mode 100644 index 342fe0ecbcf..00000000000 --- a/tests/run-make/macos-deployment-target/with_deployment_target.rs +++ /dev/null @@ -1,4 +0,0 @@ -#![crate_type = "cdylib"] - -#[allow(dead_code)] -fn something_and_nothing() {}