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allow loading of llvm plugins on nightly

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This commit is contained in:
Manuel Drehwald 2021-06-13 18:23:01 +02:00
parent fb3ea63d9b
commit 4dbdcd1c5c
3 changed files with 13 additions and 0 deletions
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10
compiler/rustc_codegen_llvm/src/llvm_util.rs
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@ -129,6 +129,16 @@ unsafe fn configure_llvm(sess: &Session) {
llvm::LLVMInitializePasses();
for plugin in &sess.opts.debugging_opts.llvm_plugins {
let path = CString::new(plugin.as_bytes()).unwrap();
let res = libc::dlopen(path.as_ptr(), libc::RTLD_LAZY | libc::RTLD_GLOBAL);
if res.is_null() {
println!("{}", CStr::from_ptr(libc::dlerror()).to_string_lossy().into_owned());
}
println!("{:p}", res);
println!("{}", plugin);
}
rustc_llvm::initialize_available_targets();
llvm::LLVMRustSetLLVMOptions(llvm_args.len() as c_int, llvm_args.as_ptr());

1
compiler/rustc_interface/src/tests.rs
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@ -707,6 +707,7 @@ fn test_debugging_options_tracking_hash() {
tracked!(instrument_coverage, Some(InstrumentCoverage::All));
tracked!(instrument_mcount, true);
tracked!(link_only, true);
tracked!(llvm_plugins, vec![String::from("plugin_name")]);
tracked!(merge_functions, Some(MergeFunctions::Disabled));
tracked!(mir_emit_retag, true);
tracked!(mir_opt_level, Some(4));

2
compiler/rustc_session/src/options.rs
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@ -1122,6 +1122,8 @@ options! {
"link native libraries in the linker invocation (default: yes)"),
link_only: bool = (false, parse_bool, [TRACKED],
"link the `.rlink` file generated by `-Z no-link` (default: no)"),
llvm_plugins: Vec<String> = (Vec::new(), parse_list, [TRACKED],
"a list LLVM plugins to enable (space separated)"),
llvm_time_trace: bool = (false, parse_bool, [UNTRACKED],
"generate JSON tracing data file from LLVM data (default: no)"),
ls: bool = (false, parse_bool, [UNTRACKED],