rustc_codegen_llvm/back/
owned_target_machine.rs1use std::ffi::CStr;
2use std::marker::PhantomData;
3use std::ptr::NonNull;
4
5use rustc_data_structures::small_c_str::SmallCStr;
6
7use crate::errors::LlvmError;
8use crate::llvm;
9
10#[repr(transparent)]
13pub struct OwnedTargetMachine {
14 tm_unique: NonNull<llvm::TargetMachine>,
15 phantom: PhantomData<llvm::TargetMachine>,
16}
17
18impl OwnedTargetMachine {
19 pub(crate) fn new(
20 triple: &CStr,
21 cpu: &CStr,
22 features: &CStr,
23 abi: &CStr,
24 model: llvm::CodeModel,
25 reloc: llvm::RelocModel,
26 level: llvm::CodeGenOptLevel,
27 float_abi: llvm::FloatAbi,
28 function_sections: bool,
29 data_sections: bool,
30 unique_section_names: bool,
31 trap_unreachable: bool,
32 singlethread: bool,
33 verbose_asm: bool,
34 emit_stack_size_section: bool,
35 relax_elf_relocations: bool,
36 use_init_array: bool,
37 split_dwarf_file: &CStr,
38 output_obj_file: &CStr,
39 debug_info_compression: &CStr,
40 use_emulated_tls: bool,
41 use_wasm_eh: bool,
42 ) -> Result<Self, LlvmError<'static>> {
43 let tm_ptr = unsafe {
45 llvm::LLVMRustCreateTargetMachine(
46 triple.as_ptr(),
47 cpu.as_ptr(),
48 features.as_ptr(),
49 abi.as_ptr(),
50 model,
51 reloc,
52 level,
53 float_abi,
54 function_sections,
55 data_sections,
56 unique_section_names,
57 trap_unreachable,
58 singlethread,
59 verbose_asm,
60 emit_stack_size_section,
61 relax_elf_relocations,
62 use_init_array,
63 split_dwarf_file.as_ptr(),
64 output_obj_file.as_ptr(),
65 debug_info_compression.as_ptr(),
66 use_emulated_tls,
67 use_wasm_eh,
68 )
69 };
70
71 NonNull::new(tm_ptr)
72 .map(|tm_unique| Self { tm_unique, phantom: PhantomData })
73 .ok_or_else(|| LlvmError::CreateTargetMachine { triple: SmallCStr::from(triple) })
74 }
75
76 pub fn raw(&self) -> &llvm::TargetMachine {
81 unsafe { self.tm_unique.as_ref() }
84 }
85}
86
87impl Drop for OwnedTargetMachine {
88 fn drop(&mut self) {
89 unsafe { llvm::LLVMDisposeTargetMachine(self.tm_unique) };
93 }
94}