From 710e7b0c7581efcbb2d913738d1ec17f0a726387 Mon Sep 17 00:00:00 2001 From: Oneirical Date: Wed, 17 Jul 2024 15:11:09 -0400 Subject: [PATCH] rewrite c-dynamic-dylib to rmake --- .../src/external_deps/c_build.rs | 37 ++++++++++++++++++- src/tools/run-make-support/src/fs.rs | 15 +++++++- src/tools/run-make-support/src/lib.rs | 2 +- .../tidy/src/allowed_run_make_makefiles.txt | 1 - tests/run-make/c-dynamic-dylib/Makefile | 16 -------- tests/run-make/c-dynamic-dylib/rmake.rs | 17 +++++++++ tests/run-make/c-dynamic-rlib/rmake.rs | 8 +--- 7 files changed, 69 insertions(+), 27 deletions(-) delete mode 100644 tests/run-make/c-dynamic-dylib/Makefile create mode 100644 tests/run-make/c-dynamic-dylib/rmake.rs diff --git a/src/tools/run-make-support/src/external_deps/c_build.rs b/src/tools/run-make-support/src/external_deps/c_build.rs index 35b2bf75c95..86c9c081831 100644 --- a/src/tools/run-make-support/src/external_deps/c_build.rs +++ b/src/tools/run-make-support/src/external_deps/c_build.rs @@ -1,10 +1,13 @@ use std::path::PathBuf; -use crate::artifact_names::static_lib_name; +use super::cygpath::get_windows_path; +use crate::artifact_names::{dynamic_lib_name, static_lib_name}; use crate::external_deps::cc::cc; use crate::external_deps::llvm::llvm_ar; use crate::path_helpers::path; -use crate::targets::is_msvc; +use crate::targets::{is_darwin, is_msvc, is_windows}; + +// FIXME(Oneirical): These native build functions should take a Path-based generic. /// Builds a static lib (`.lib` on Windows MSVC and `.a` for the rest) with the given name. #[track_caller] @@ -25,3 +28,33 @@ pub fn build_native_static_lib(lib_name: &str) -> PathBuf { llvm_ar().obj_to_ar().output_input(&lib_path, &obj_file).run(); path(lib_path) } + +/// Builds a dynamic lib. The filename is computed in a target-dependent manner, relying on +/// [`std::env::consts::DLL_PREFIX`] and [`std::env::consts::DLL_EXTENSION`]. +#[track_caller] +pub fn build_native_dynamic_lib(lib_name: &str) -> PathBuf { + let obj_file = if is_msvc() { format!("{lib_name}") } else { format!("{lib_name}.o") }; + let src = format!("{lib_name}.c"); + let lib_path = dynamic_lib_name(lib_name); + if is_msvc() { + cc().arg("-c").out_exe(&obj_file).input(src).run(); + } else { + cc().arg("-v").arg("-c").out_exe(&obj_file).input(src).run(); + }; + let obj_file = if is_msvc() { format!("{lib_name}.obj") } else { format!("{lib_name}.o") }; + if is_msvc() { + let mut out_arg = "-out:".to_owned(); + out_arg.push_str(&get_windows_path(&lib_path)); + cc().input(&obj_file).args(&["-link", "-dll", &out_arg]).run(); + } else if is_darwin() { + cc().out_exe(&lib_path).input(&obj_file).args(&["-dynamiclib", "-Wl,-dylib"]).run(); + } else if is_windows() { + cc().out_exe(&lib_path) + .input(&obj_file) + .args(&["-shared", &format!("-Wl,--out-implib={lib_path}.a")]) + .run(); + } else { + cc().out_exe(&lib_path).input(&obj_file).arg("-shared").run(); + } + path(lib_path) +} diff --git a/src/tools/run-make-support/src/fs.rs b/src/tools/run-make-support/src/fs.rs index f346e983aea..0a796161633 100644 --- a/src/tools/run-make-support/src/fs.rs +++ b/src/tools/run-make-support/src/fs.rs @@ -1,5 +1,5 @@ use std::io; -use std::path::Path; +use std::path::{Path, PathBuf}; // FIXME(jieyouxu): modify create_symlink to panic on windows. @@ -176,3 +176,16 @@ pub fn set_permissions>(path: P, perm: std::fs::Permissions) { path.as_ref().display() )); } + +/// A function which prints all file names in the directory `dir` similarly to Unix's `ls`. +/// Useful for debugging. +/// Usage: `eprintln!("{:#?}", shallow_find_dir_entries(some_dir));` +#[track_caller] +pub fn shallow_find_dir_entries>(dir: P) -> Vec { + let paths = read_dir(dir); + let mut output = Vec::new(); + for path in paths { + output.push(path.unwrap().path()); + } + output +} diff --git a/src/tools/run-make-support/src/lib.rs b/src/tools/run-make-support/src/lib.rs index b85191970de..a4bb9056346 100644 --- a/src/tools/run-make-support/src/lib.rs +++ b/src/tools/run-make-support/src/lib.rs @@ -43,7 +43,7 @@ pub mod rfs { pub use external_deps::{c_build, cc, clang, htmldocck, llvm, python, rustc, rustdoc}; // These rely on external dependencies. -pub use c_build::build_native_static_lib; +pub use c_build::{build_native_dynamic_lib, build_native_static_lib}; pub use cc::{cc, extra_c_flags, extra_cxx_flags, Cc}; pub use clang::{clang, Clang}; pub use htmldocck::htmldocck; diff --git a/src/tools/tidy/src/allowed_run_make_makefiles.txt b/src/tools/tidy/src/allowed_run_make_makefiles.txt index b85e5dfe3ed..88010f93906 100644 --- a/src/tools/tidy/src/allowed_run_make_makefiles.txt +++ b/src/tools/tidy/src/allowed_run_make_makefiles.txt @@ -1,5 +1,4 @@ run-make/branch-protection-check-IBT/Makefile -run-make/c-dynamic-dylib/Makefile run-make/c-unwind-abi-catch-lib-panic/Makefile run-make/cat-and-grep-sanity-check/Makefile run-make/cdylib-dylib-linkage/Makefile diff --git a/tests/run-make/c-dynamic-dylib/Makefile b/tests/run-make/c-dynamic-dylib/Makefile deleted file mode 100644 index 39561b28222..00000000000 --- a/tests/run-make/c-dynamic-dylib/Makefile +++ /dev/null @@ -1,16 +0,0 @@ -# This test checks that dynamic Rust linking with C does not encounter any errors, with dynamic dependencies given preference over static. -# See https://github.com/rust-lang/rust/issues/10434 - -# ignore-cross-compile -include ../tools.mk - -# ignore-apple -# -# This hits an assertion in the linker on older versions of osx apparently - -all: $(call DYLIB,cfoo) - $(RUSTC) foo.rs -C prefer-dynamic - $(RUSTC) bar.rs - $(call RUN,bar) - $(call REMOVE_DYLIBS,cfoo) - $(call FAIL,bar) diff --git a/tests/run-make/c-dynamic-dylib/rmake.rs b/tests/run-make/c-dynamic-dylib/rmake.rs new file mode 100644 index 00000000000..65b5e02abf0 --- /dev/null +++ b/tests/run-make/c-dynamic-dylib/rmake.rs @@ -0,0 +1,17 @@ +// This test checks that dynamic Rust linking with C does not encounter any errors in both +// compilation and execution, with dynamic dependencies given preference over static. +// See https://github.com/rust-lang/rust/issues/10434 + +//@ ignore-cross-compile +// Reason: the compiled binary is executed + +use run_make_support::{build_native_dynamic_lib, dynamic_lib_name, rfs, run, run_fail, rustc}; + +fn main() { + build_native_dynamic_lib("cfoo"); + rustc().input("foo.rs").arg("-Cprefer-dynamic").run(); + rustc().input("bar.rs").run(); + run("bar"); + rfs::remove_file(dynamic_lib_name("cfoo")); + run_fail("bar"); +} diff --git a/tests/run-make/c-dynamic-rlib/rmake.rs b/tests/run-make/c-dynamic-rlib/rmake.rs index c48b1edee9e..b59887bbdd6 100644 --- a/tests/run-make/c-dynamic-rlib/rmake.rs +++ b/tests/run-make/c-dynamic-rlib/rmake.rs @@ -6,17 +6,13 @@ //@ ignore-cross-compile // Reason: the compiled binary is executed -//FIXME(Oneirical): test on apple because older versions of osx are failing apparently - -use run_make_support::{ - build_native_dynamic_lib, dynamic_lib_name, fs_wrapper, run, run_fail, rustc, -}; +use run_make_support::{build_native_dynamic_lib, dynamic_lib_name, rfs, run, run_fail, rustc}; fn main() { build_native_dynamic_lib("cfoo"); rustc().input("foo.rs").run(); rustc().input("bar.rs").run(); run("bar"); - fs_wrapper::remove_file(dynamic_lib_name("cfoo")); + rfs::remove_file(dynamic_lib_name("cfoo")); run_fail("bar"); }