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Add help for target CPUs, features, relocation and code models.

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This commit is contained in:
Cameron Hart 2016-07-11 00:22:13 +10:00
parent d11936251a
commit e1efa324ec
6 changed files with 95 additions and 4 deletions
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24
src/librustc_driver/lib.rs
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@ -69,6 +69,7 @@ use pretty::{PpMode, UserIdentifiedItem};
use rustc_resolve as resolve;
use rustc_save_analysis as save;
use rustc_trans::back::link;
use rustc_trans::back::write::create_target_machine;
use rustc::dep_graph::DepGraph;
use rustc::session::{self, config, Session, build_session, CompileResult};
use rustc::session::config::{Input, PrintRequest, OutputType, ErrorOutputType};
@ -657,6 +658,29 @@ impl RustcDefaultCalls {
}
}
}
PrintRequest::TargetCPUs => {
let tm = create_target_machine(sess);
unsafe { llvm::LLVMRustPrintTargetCPUs(tm); }
}
PrintRequest::TargetFeatures => {
let tm = create_target_machine(sess);
unsafe { llvm::LLVMRustPrintTargetFeatures(tm); }
}
PrintRequest::RelocationModels => {
println!("Available relocation models:\n");
println!(" pic");
println!(" static");
println!(" default");
println!(" dynamic-no-pic\n");
}
PrintRequest::CodeModels => {
println!("Available code models:\n");
println!(" default");
println!(" small");
println!(" kernel");
println!(" medium");
println!(" large\n");
}
}
}
return Compilation::Stop;