Auto merge of #127877 - Rejyr:migrate-print-rmake, r=jieyouxu

Migrate `print-target-list` to `rmake` and  `print-calling-convention` to ui-test

Part of #121876.

r? `@jieyouxu`

try-job: x86_64-gnu-llvm-18
try-job: test-various
try-job: armhf-gnu
try-job: aarch64-apple
try-job: i686-mingw
try-job: x86_64-msvc

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -23,8 +23,6 @@ run-make/no-alloc-shim/Makefile
 run-make/pdb-buildinfo-cl-cmd/Makefile
 run-make/pgo-gen-lto/Makefile
 run-make/pgo-indirect-call-promotion/Makefile
-run-make/print-calling-conventions/Makefile
-run-make/print-target-list/Makefile
 run-make/raw-dylib-alt-calling-convention/Makefile
 run-make/raw-dylib-c/Makefile
 run-make/redundant-libs/Makefile

tests/run-make/print-calling-conventions/Makefile

@@ -1,4 +0,0 @@
-include ../tools.mk
-
-all:
-	$(RUSTC) --print calling-conventions

tests/run-make/print-cfg/rmake.rs

@@ -6,7 +6,6 @@
 //! It also checks that some targets have the correct set cfgs.
 
 use std::collections::HashSet;
-use std::ffi::OsString;
 use std::iter::FromIterator;
 use std::path::PathBuf;
 
@@ -91,10 +90,8 @@ fn check_(output: &str, includes: &[&str], disallow: &[&str]) {
     // --print=cfg=PATH
     {
         let tmp_path = PathBuf::from(format!("{target}.cfg"));
-        let mut print_arg = OsString::from("--print=cfg=");
-        print_arg.push(tmp_path.as_os_str());
 
-        rustc().target(target).arg(print_arg).run();
+        rustc().target(target).print(&format!("cfg={}", tmp_path.display())).run();
 
         let output = rfs::read_to_string(&tmp_path);
 

tests/run-make/print-check-cfg/rmake.rs

@@ -87,7 +87,7 @@ fn main() {
 
 fn check(CheckCfg { args, contains }: CheckCfg) {
     let output =
-        rustc().input("lib.rs").arg("-Zunstable-options").arg("--print=check-cfg").args(args).run();
+        rustc().input("lib.rs").arg("-Zunstable-options").print("check-cfg").args(args).run();
 
     let stdout = output.stdout_utf8();
 

tests/run-make/print-target-list/Makefile

@@ -1,8 +0,0 @@
-include ../tools.mk
-
-# Checks that all the targets returned by `rustc --print target-list` are valid
-# target specifications
-all:
-	for target in $(shell $(BARE_RUSTC) --print target-list); do \
-		$(BARE_RUSTC) --target $$target --print sysroot; \
-	done

tests/run-make/print-target-list/rmake.rs

@@ -0,0 +1,21 @@
+// Checks that all the targets returned by `rustc --print target-list` are valid
+// target specifications
+
+use run_make_support::bare_rustc;
+
+// FIXME(127877): certain experimental targets fail with creating a 'LLVM TargetMachine'
+// in CI, so we skip them
+const EXPERIMENTAL_TARGETS: &[&str] = &["avr", "m68k", "csky", "xtensa"];
+
+fn main() {
+    let targets = bare_rustc().print("target-list").run().stdout_utf8();
+
+    for target in targets.lines() {
+        // skip experimental targets that would otherwise fail
+        if EXPERIMENTAL_TARGETS.iter().any(|experimental| target.contains(experimental)) {
+            continue;
+        }
+
+        bare_rustc().target(target).print("sysroot").run();
+    }
+}

tests/run-make/print-to-output/rmake.rs

@@ -1,7 +1,6 @@
 //! This checks the output of some `--print` options when
 //! output to a file (instead of stdout)
 
-use std::ffi::OsString;
 use std::path::PathBuf;
 
 use run_make_support::{rfs, rustc, target};
@@ -44,10 +43,8 @@ fn check_(output: &str, includes: &[&str]) {
     // --print={option}=PATH
     let output = {
         let tmp_path = PathBuf::from(format!("{}.txt", args.option));
-        let mut print_arg = OsString::from(format!("--print={}=", args.option));
-        print_arg.push(tmp_path.as_os_str());
 
-        rustc().target(args.target).arg(print_arg).run();
+        rustc().target(args.target).print(&format!("{}={}", args.option, tmp_path.display())).run();
 
         rfs::read_to_string(&tmp_path)
     };

tests/run-make/rustdoc-scrape-examples-macros/rmake.rs

@@ -11,8 +11,7 @@ fn main() {
     let dylib_name = rustc()
         .crate_name(proc_crate_name)
         .crate_type("dylib")
-        .arg("--print")
-        .arg("file-names")
+        .print("file-names")
         .arg("-")
         .run()
         .stdout_utf8();

tests/ui/print-calling-conventions.rs

@@ -0,0 +1,2 @@
+//@ compile-flags: --print calling-conventions
+//@ build-pass

tests/ui/print-calling-conventions.stdout

@@ -0,0 +1,34 @@
+C
+C-cmse-nonsecure-call
+C-unwind
+Rust
+aapcs
+aapcs-unwind
+avr-interrupt
+avr-non-blocking-interrupt
+cdecl
+cdecl-unwind
+efiapi
+fastcall
+fastcall-unwind
+msp430-interrupt
+ptx-kernel
+riscv-interrupt-m
+riscv-interrupt-s
+rust-call
+rust-cold
+rust-intrinsic
+stdcall
+stdcall-unwind
+system
+system-unwind
+sysv64
+sysv64-unwind
+thiscall
+thiscall-unwind
+unadjusted
+vectorcall
+vectorcall-unwind
+win64
+win64-unwind
+x86-interrupt