diff options
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/back/write.rs')
| -rw-r--r-- | compiler/rustc_codegen_llvm/src/back/write.rs | 52 |
1 files changed, 12 insertions, 40 deletions
diff --git a/compiler/rustc_codegen_llvm/src/back/write.rs b/compiler/rustc_codegen_llvm/src/back/write.rs index bfa9e8b82a0..00f7b479fa7 100644 --- a/compiler/rustc_codegen_llvm/src/back/write.rs +++ b/compiler/rustc_codegen_llvm/src/back/write.rs @@ -9,6 +9,7 @@ use llvm::{ LLVMRustLLVMHasZlibCompressionForDebugSymbols, LLVMRustLLVMHasZstdCompressionForDebugSymbols, }; use rustc_codegen_ssa::back::link::ensure_removed; +use rustc_codegen_ssa::back::versioned_llvm_target; use rustc_codegen_ssa::back::write::{ BitcodeSection, CodegenContext, EmitObj, ModuleConfig, TargetMachineFactoryConfig, TargetMachineFactoryFn, @@ -211,7 +212,7 @@ pub(crate) fn target_machine_factory( singlethread = false; } - let triple = SmallCStr::new(&sess.target.llvm_target); + let triple = SmallCStr::new(&versioned_llvm_target(sess)); let cpu = SmallCStr::new(llvm_util::target_cpu(sess)); let features = CString::new(target_features.join(",")).unwrap(); let abi = SmallCStr::new(&sess.target.llvm_abiname); @@ -591,7 +592,6 @@ pub(crate) unsafe fn llvm_optimize( pgo_use_path.as_ref().map_or(std::ptr::null(), |s| s.as_ptr()), config.instrument_coverage, instr_profile_output_path.as_ref().map_or(std::ptr::null(), |s| s.as_ptr()), - config.instrument_gcov, pgo_sample_use_path.as_ref().map_or(std::ptr::null(), |s| s.as_ptr()), config.debug_info_for_profiling, llvm_selfprofiler, @@ -945,47 +945,17 @@ fn create_section_with_flags_asm(section_name: &str, section_flags: &str, data: asm } -fn target_is_apple(cgcx: &CodegenContext<LlvmCodegenBackend>) -> bool { - let triple = cgcx.opts.target_triple.triple(); - triple.contains("-ios") - || triple.contains("-darwin") - || triple.contains("-tvos") - || triple.contains("-watchos") - || triple.contains("-visionos") -} - -fn target_is_aix(cgcx: &CodegenContext<LlvmCodegenBackend>) -> bool { - cgcx.opts.target_triple.triple().contains("-aix") -} - pub(crate) fn bitcode_section_name(cgcx: &CodegenContext<LlvmCodegenBackend>) -> &'static CStr { - if target_is_apple(cgcx) { + if cgcx.target_is_like_osx { c"__LLVM,__bitcode" - } else if target_is_aix(cgcx) { + } else if cgcx.target_is_like_aix { c".ipa" } else { c".llvmbc" } } -/// Embed the bitcode of an LLVM module in the LLVM module itself. -/// -/// This is done primarily for iOS where it appears to be standard to compile C -/// code at least with `-fembed-bitcode` which creates two sections in the -/// executable: -/// -/// * __LLVM,__bitcode -/// * __LLVM,__cmdline -/// -/// It appears *both* of these sections are necessary to get the linker to -/// recognize what's going on. A suitable cmdline value is taken from the -/// target spec. -/// -/// Furthermore debug/O1 builds don't actually embed bitcode but rather just -/// embed an empty section. -/// -/// Basically all of this is us attempting to follow in the footsteps of clang -/// on iOS. See #35968 for lots more info. +/// Embed the bitcode of an LLVM module for LTO in the LLVM module itself. unsafe fn embed_bitcode( cgcx: &CodegenContext<LlvmCodegenBackend>, llcx: &llvm::Context, @@ -1028,10 +998,12 @@ unsafe fn embed_bitcode( // Unfortunately, LLVM provides no way to set custom section flags. For ELF // and COFF we emit the sections using module level inline assembly for that // reason (see issue #90326 for historical background). - let is_aix = target_is_aix(cgcx); - let is_apple = target_is_apple(cgcx); unsafe { - if is_apple || is_aix || cgcx.opts.target_triple.triple().starts_with("wasm") { + if cgcx.target_is_like_osx + || cgcx.target_is_like_aix + || cgcx.target_arch == "wasm32" + || cgcx.target_arch == "wasm64" + { // We don't need custom section flags, create LLVM globals. let llconst = common::bytes_in_context(llcx, bitcode); let llglobal = llvm::LLVMAddGlobal( @@ -1052,9 +1024,9 @@ unsafe fn embed_bitcode( c"rustc.embedded.cmdline".as_ptr(), ); llvm::LLVMSetInitializer(llglobal, llconst); - let section = if is_apple { + let section = if cgcx.target_is_like_osx { c"__LLVM,__cmdline" - } else if is_aix { + } else if cgcx.target_is_like_aix { c".info" } else { c".llvmcmd" |
