mirror of
https://github.com/rust-lang/rust
synced 2024-09-05 16:57:03 +00:00
compiler: replace cstr macro with c str literals in compiler and few other c str replacements
This commit is contained in:
parent
71940e0a8a
commit
26e69a8816
11
Cargo.lock
11
Cargo.lock
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@ -869,16 +869,6 @@ dependencies = [
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"typenum",
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]
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[[package]]
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name = "cstr"
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version = "0.2.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c11a39d776a3b35896711da8a04dc1835169dcd36f710878187637314e47941b"
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dependencies = [
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"proc-macro2",
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"quote",
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]
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[[package]]
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name = "ctrlc"
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version = "3.4.0"
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@ -3585,7 +3575,6 @@ name = "rustc_codegen_llvm"
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version = "0.0.0"
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dependencies = [
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"bitflags 1.3.2",
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"cstr",
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"itertools",
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"libc",
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"measureme",
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@ -9,7 +9,6 @@ test = false
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[dependencies]
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# tidy-alphabetical-start
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bitflags = "1.0"
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cstr = "0.2"
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itertools = "0.11"
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libc = "0.2"
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measureme = "10.0.0"
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@ -146,7 +146,7 @@ fn create_wrapper_function(
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}
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llvm::LLVMRustSetVisibility(callee, llvm::Visibility::Hidden);
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let llbb = llvm::LLVMAppendBasicBlockInContext(llcx, llfn, "entry\0".as_ptr().cast());
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let llbb = llvm::LLVMAppendBasicBlockInContext(llcx, llfn, c"entry".as_ptr().cast());
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let llbuilder = llvm::LLVMCreateBuilderInContext(llcx);
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llvm::LLVMPositionBuilderAtEnd(llbuilder, llbb);
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@ -631,7 +631,7 @@ pub(crate) fn run_pass_manager(
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llvm::LLVMRustAddModuleFlag(
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module.module_llvm.llmod(),
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llvm::LLVMModFlagBehavior::Error,
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"LTOPostLink\0".as_ptr().cast(),
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c"LTOPostLink".as_ptr().cast(),
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1,
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);
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}
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@ -916,6 +916,7 @@ fn target_is_aix(cgcx: &CodegenContext<LlvmCodegenBackend>) -> bool {
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cgcx.opts.target_triple.triple().contains("-aix")
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}
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//FIXME use c string literals here too
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pub(crate) fn bitcode_section_name(cgcx: &CodegenContext<LlvmCodegenBackend>) -> &'static str {
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if target_is_apple(cgcx) {
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"__LLVM,__bitcode\0"
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@ -994,7 +995,7 @@ unsafe fn embed_bitcode(
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let llglobal = llvm::LLVMAddGlobal(
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llmod,
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common::val_ty(llconst),
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"rustc.embedded.module\0".as_ptr().cast(),
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c"rustc.embedded.module".as_ptr().cast(),
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);
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llvm::LLVMSetInitializer(llglobal, llconst);
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@ -1007,15 +1008,15 @@ unsafe fn embed_bitcode(
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let llglobal = llvm::LLVMAddGlobal(
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llmod,
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common::val_ty(llconst),
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"rustc.embedded.cmdline\0".as_ptr().cast(),
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c"rustc.embedded.cmdline".as_ptr().cast(),
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);
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llvm::LLVMSetInitializer(llglobal, llconst);
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let section = if is_apple {
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"__LLVM,__cmdline\0"
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c"__LLVM,__cmdline"
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} else if is_aix {
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".info\0"
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c".info"
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} else {
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".llvmcmd\0"
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c".llvmcmd"
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};
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llvm::LLVMSetSection(llglobal, section.as_ptr().cast());
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llvm::LLVMRustSetLinkage(llglobal, llvm::Linkage::PrivateLinkage);
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@ -19,8 +19,6 @@
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use crate::llvm;
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use crate::value::Value;
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use cstr::cstr;
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use rustc_codegen_ssa::base::maybe_create_entry_wrapper;
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use rustc_codegen_ssa::mono_item::MonoItemExt;
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use rustc_codegen_ssa::traits::*;
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@ -110,11 +108,11 @@ fn module_codegen(tcx: TyCtxt<'_>, cgu_name: Symbol) -> ModuleCodegen<ModuleLlvm
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// Create the llvm.used and llvm.compiler.used variables.
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if !cx.used_statics.borrow().is_empty() {
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cx.create_used_variable_impl(cstr!("llvm.used"), &*cx.used_statics.borrow());
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cx.create_used_variable_impl(c"llvm.used", &*cx.used_statics.borrow());
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}
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if !cx.compiler_used_statics.borrow().is_empty() {
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cx.create_used_variable_impl(
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cstr!("llvm.compiler.used"),
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c"llvm.compiler.used",
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&*cx.compiler_used_statics.borrow(),
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);
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}
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@ -7,7 +7,6 @@
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use crate::type_::Type;
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use crate::type_of::LayoutLlvmExt;
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use crate::value::Value;
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use cstr::cstr;
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use libc::{c_char, c_uint};
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use rustc_codegen_ssa::common::{IntPredicate, RealPredicate, SynchronizationScope, TypeKind};
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use rustc_codegen_ssa::mir::operand::{OperandRef, OperandValue};
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@ -27,7 +26,6 @@
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use rustc_target::spec::{HasTargetSpec, SanitizerSet, Target};
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use smallvec::SmallVec;
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use std::borrow::Cow;
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use std::ffi::CStr;
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use std::iter;
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use std::ops::Deref;
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use std::ptr;
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@ -47,13 +45,10 @@ fn drop(&mut self) {
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}
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}
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// FIXME(eddyb) use a checked constructor when they become `const fn`.
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const EMPTY_C_STR: &CStr = unsafe { CStr::from_bytes_with_nul_unchecked(b"\0") };
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/// Empty string, to be used where LLVM expects an instruction name, indicating
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/// that the instruction is to be left unnamed (i.e. numbered, in textual IR).
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// FIXME(eddyb) pass `&CStr` directly to FFI once it's a thin pointer.
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const UNNAMED: *const c_char = EMPTY_C_STR.as_ptr();
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const UNNAMED: *const c_char = c"".as_ptr();
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impl<'ll, 'tcx> BackendTypes for Builder<'_, 'll, 'tcx> {
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type Value = <CodegenCx<'ll, 'tcx> as BackendTypes>::Value;
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@ -1003,14 +998,13 @@ fn resume(&mut self, exn0: &'ll Value, exn1: &'ll Value) {
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}
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fn cleanup_pad(&mut self, parent: Option<&'ll Value>, args: &[&'ll Value]) -> Funclet<'ll> {
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let name = cstr!("cleanuppad");
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let ret = unsafe {
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llvm::LLVMBuildCleanupPad(
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self.llbuilder,
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parent,
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args.as_ptr(),
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args.len() as c_uint,
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name.as_ptr(),
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c"cleanuppad".as_ptr(),
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)
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};
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Funclet::new(ret.expect("LLVM does not have support for cleanuppad"))
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@ -1024,14 +1018,13 @@ fn cleanup_ret(&mut self, funclet: &Funclet<'ll>, unwind: Option<&'ll BasicBlock
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}
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fn catch_pad(&mut self, parent: &'ll Value, args: &[&'ll Value]) -> Funclet<'ll> {
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let name = cstr!("catchpad");
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let ret = unsafe {
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llvm::LLVMBuildCatchPad(
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self.llbuilder,
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parent,
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args.as_ptr(),
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args.len() as c_uint,
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name.as_ptr(),
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c"catchpad".as_ptr(),
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)
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};
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Funclet::new(ret.expect("LLVM does not have support for catchpad"))
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@ -1043,14 +1036,13 @@ fn catch_switch(
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unwind: Option<&'ll BasicBlock>,
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handlers: &[&'ll BasicBlock],
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) -> &'ll Value {
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let name = cstr!("catchswitch");
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let ret = unsafe {
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llvm::LLVMBuildCatchSwitch(
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self.llbuilder,
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parent,
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unwind,
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handlers.len() as c_uint,
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name.as_ptr(),
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c"catchswitch".as_ptr(),
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)
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};
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let ret = ret.expect("LLVM does not have support for catchswitch");
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@ -8,7 +8,6 @@
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use crate::type_::Type;
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use crate::type_of::LayoutLlvmExt;
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use crate::value::Value;
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use cstr::cstr;
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use rustc_codegen_ssa::traits::*;
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use rustc_hir::def_id::DefId;
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use rustc_middle::middle::codegen_fn_attrs::{CodegenFnAttrFlags, CodegenFnAttrs};
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@ -476,9 +475,9 @@ fn codegen_static(&self, def_id: DefId, is_mutable: bool) {
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.all(|&byte| byte == 0);
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let sect_name = if all_bytes_are_zero {
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cstr!("__DATA,__thread_bss")
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c"__DATA,__thread_bss"
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} else {
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cstr!("__DATA,__thread_data")
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c"__DATA,__thread_data"
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};
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llvm::LLVMSetSection(g, sect_name.as_ptr());
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}
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@ -507,7 +506,7 @@ fn codegen_static(&self, def_id: DefId, is_mutable: bool) {
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let val = llvm::LLVMMetadataAsValue(self.llcx, meta);
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llvm::LLVMAddNamedMetadataOperand(
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self.llmod,
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"wasm.custom_sections\0".as_ptr().cast(),
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c"wasm.custom_sections".as_ptr().cast(),
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val,
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);
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}
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@ -8,7 +8,6 @@
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use crate::type_::Type;
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use crate::value::Value;
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use cstr::cstr;
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use rustc_codegen_ssa::base::{wants_msvc_seh, wants_wasm_eh};
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use rustc_codegen_ssa::errors as ssa_errors;
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use rustc_codegen_ssa::traits::*;
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@ -214,13 +213,13 @@ pub unsafe fn create_module<'ll>(
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// If skipping the PLT is enabled, we need to add some module metadata
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// to ensure intrinsic calls don't use it.
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if !sess.needs_plt() {
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let avoid_plt = "RtLibUseGOT\0".as_ptr().cast();
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let avoid_plt = c"RtLibUseGOT".as_ptr().cast();
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llvm::LLVMRustAddModuleFlag(llmod, llvm::LLVMModFlagBehavior::Warning, avoid_plt, 1);
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}
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// Enable canonical jump tables if CFI is enabled. (See https://reviews.llvm.org/D65629.)
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if sess.is_sanitizer_cfi_canonical_jump_tables_enabled() && sess.is_sanitizer_cfi_enabled() {
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let canonical_jump_tables = "CFI Canonical Jump Tables\0".as_ptr().cast();
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let canonical_jump_tables = c"CFI Canonical Jump Tables".as_ptr().cast();
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llvm::LLVMRustAddModuleFlag(
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llmod,
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llvm::LLVMModFlagBehavior::Override,
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@ -231,7 +230,7 @@ pub unsafe fn create_module<'ll>(
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// Enable LTO unit splitting if specified or if CFI is enabled. (See https://reviews.llvm.org/D53891.)
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if sess.is_split_lto_unit_enabled() || sess.is_sanitizer_cfi_enabled() {
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let enable_split_lto_unit = "EnableSplitLTOUnit\0".as_ptr().cast();
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let enable_split_lto_unit = c"EnableSplitLTOUnit".as_ptr().cast();
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llvm::LLVMRustAddModuleFlag(
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llmod,
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llvm::LLVMModFlagBehavior::Override,
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@ -242,7 +241,7 @@ pub unsafe fn create_module<'ll>(
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// Add "kcfi" module flag if KCFI is enabled. (See https://reviews.llvm.org/D119296.)
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if sess.is_sanitizer_kcfi_enabled() {
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let kcfi = "kcfi\0".as_ptr().cast();
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let kcfi = c"kcfi".as_ptr().cast();
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llvm::LLVMRustAddModuleFlag(llmod, llvm::LLVMModFlagBehavior::Override, kcfi, 1);
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}
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@ -255,7 +254,7 @@ pub unsafe fn create_module<'ll>(
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llvm::LLVMRustAddModuleFlag(
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llmod,
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llvm::LLVMModFlagBehavior::Warning,
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"cfguard\0".as_ptr() as *const _,
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c"cfguard".as_ptr() as *const _,
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1,
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)
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}
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@ -264,7 +263,7 @@ pub unsafe fn create_module<'ll>(
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llvm::LLVMRustAddModuleFlag(
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llmod,
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llvm::LLVMModFlagBehavior::Warning,
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"cfguard\0".as_ptr() as *const _,
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c"cfguard".as_ptr() as *const _,
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2,
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)
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}
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@ -282,26 +281,26 @@ pub unsafe fn create_module<'ll>(
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llvm::LLVMRustAddModuleFlag(
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llmod,
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behavior,
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"branch-target-enforcement\0".as_ptr().cast(),
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c"branch-target-enforcement".as_ptr().cast(),
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bti.into(),
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);
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llvm::LLVMRustAddModuleFlag(
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llmod,
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behavior,
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"sign-return-address\0".as_ptr().cast(),
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c"sign-return-address".as_ptr().cast(),
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pac_ret.is_some().into(),
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);
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let pac_opts = pac_ret.unwrap_or(PacRet { leaf: false, key: PAuthKey::A });
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llvm::LLVMRustAddModuleFlag(
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llmod,
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behavior,
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"sign-return-address-all\0".as_ptr().cast(),
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c"sign-return-address-all".as_ptr().cast(),
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pac_opts.leaf.into(),
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);
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llvm::LLVMRustAddModuleFlag(
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llmod,
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behavior,
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"sign-return-address-with-bkey\0".as_ptr().cast(),
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c"sign-return-address-with-bkey".as_ptr().cast(),
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u32::from(pac_opts.key == PAuthKey::B),
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);
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} else {
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|
@ -317,7 +316,7 @@ pub unsafe fn create_module<'ll>(
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llvm::LLVMRustAddModuleFlag(
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llmod,
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llvm::LLVMModFlagBehavior::Override,
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"cf-protection-branch\0".as_ptr().cast(),
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c"cf-protection-branch".as_ptr().cast(),
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1,
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)
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}
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|
@ -325,7 +324,7 @@ pub unsafe fn create_module<'ll>(
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llvm::LLVMRustAddModuleFlag(
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llmod,
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llvm::LLVMModFlagBehavior::Override,
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"cf-protection-return\0".as_ptr().cast(),
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c"cf-protection-return".as_ptr().cast(),
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1,
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)
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}
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|
@ -334,7 +333,7 @@ pub unsafe fn create_module<'ll>(
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llvm::LLVMRustAddModuleFlag(
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llmod,
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llvm::LLVMModFlagBehavior::Error,
|
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"Virtual Function Elim\0".as_ptr().cast(),
|
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c"Virtual Function Elim".as_ptr().cast(),
|
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1,
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);
|
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}
|
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|
@ -344,7 +343,7 @@ pub unsafe fn create_module<'ll>(
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llvm::LLVMRustAddModuleFlag(
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llmod,
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llvm::LLVMModFlagBehavior::Warning,
|
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"ehcontguard\0".as_ptr() as *const _,
|
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c"ehcontguard".as_ptr() as *const _,
|
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1,
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)
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}
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|
@ -362,7 +361,7 @@ pub unsafe fn create_module<'ll>(
|
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);
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llvm::LLVMAddNamedMetadataOperand(
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llmod,
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cstr!("llvm.ident").as_ptr(),
|
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c"llvm.ident".as_ptr(),
|
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llvm::LLVMMDNodeInContext(llcx, &name_metadata, 1),
|
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);
|
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|
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|
@ -510,14 +509,13 @@ pub fn coverage_context(&self) -> Option<&coverageinfo::CrateCoverageContext<'ll
|
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}
|
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pub(crate) fn create_used_variable_impl(&self, name: &'static CStr, values: &[&'ll Value]) {
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let section = cstr!("llvm.metadata");
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let array = self.const_array(self.type_ptr(), values);
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unsafe {
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let g = llvm::LLVMAddGlobal(self.llmod, self.val_ty(array), name.as_ptr());
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llvm::LLVMSetInitializer(g, array);
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llvm::LLVMRustSetLinkage(g, llvm::Linkage::AppendingLinkage);
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llvm::LLVMSetSection(g, section.as_ptr());
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llvm::LLVMSetSection(g, c"llvm.metadata".as_ptr());
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}
|
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}
|
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}
|
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|
|
|
@ -30,14 +30,13 @@ pub fn insert_reference_to_gdb_debug_scripts_section_global(bx: &mut Builder<'_,
|
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/// Allocates the global variable responsible for the .debug_gdb_scripts binary
|
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/// section.
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pub fn get_or_insert_gdb_debug_scripts_section_global<'ll>(cx: &CodegenCx<'ll, '_>) -> &'ll Value {
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let c_section_var_name = "__rustc_debug_gdb_scripts_section__\0";
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let section_var_name = &c_section_var_name[..c_section_var_name.len() - 1];
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let c_section_var_name = c"__rustc_debug_gdb_scripts_section__";
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let section_var_name = c_section_var_name.to_str().unwrap();
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|
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let section_var =
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unsafe { llvm::LLVMGetNamedGlobal(cx.llmod, c_section_var_name.as_ptr().cast()) };
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|
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section_var.unwrap_or_else(|| {
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let section_name = b".debug_gdb_scripts\0";
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let mut section_contents = Vec::new();
|
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|
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// Add the pretty printers for the standard library first.
|
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|
@ -70,7 +69,7 @@ pub fn get_or_insert_gdb_debug_scripts_section_global<'ll>(cx: &CodegenCx<'ll, '
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let section_var = cx
|
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.define_global(section_var_name, llvm_type)
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.unwrap_or_else(|| bug!("symbol `{}` is already defined", section_var_name));
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llvm::LLVMSetSection(section_var, section_name.as_ptr().cast());
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llvm::LLVMSetSection(section_var, c".debug_gdb_scripts".as_ptr().cast());
|
||||
llvm::LLVMSetInitializer(section_var, cx.const_bytes(section_contents));
|
||||
llvm::LLVMSetGlobalConstant(section_var, llvm::True);
|
||||
llvm::LLVMSetUnnamedAddress(section_var, llvm::UnnamedAddr::Global);
|
||||
|
|
|
@ -20,7 +20,6 @@
|
|||
};
|
||||
use crate::value::Value;
|
||||
|
||||
use cstr::cstr;
|
||||
use rustc_codegen_ssa::debuginfo::type_names::cpp_like_debuginfo;
|
||||
use rustc_codegen_ssa::debuginfo::type_names::VTableNameKind;
|
||||
use rustc_codegen_ssa::traits::*;
|
||||
|
@ -854,7 +853,6 @@ pub fn build_compile_unit_di_node<'ll, 'tcx>(
|
|||
use rustc_session::RemapFileNameExt;
|
||||
let name_in_debuginfo = name_in_debuginfo.to_string_lossy();
|
||||
let work_dir = tcx.sess.opts.working_dir.for_codegen(tcx.sess).to_string_lossy();
|
||||
let flags = "\0";
|
||||
let output_filenames = tcx.output_filenames(());
|
||||
let split_name = if tcx.sess.target_can_use_split_dwarf() {
|
||||
output_filenames
|
||||
|
@ -897,7 +895,7 @@ pub fn build_compile_unit_di_node<'ll, 'tcx>(
|
|||
producer.as_ptr().cast(),
|
||||
producer.len(),
|
||||
tcx.sess.opts.optimize != config::OptLevel::No,
|
||||
flags.as_ptr().cast(),
|
||||
c"".as_ptr().cast(),
|
||||
0,
|
||||
// NB: this doesn't actually have any perceptible effect, it seems. LLVM will instead
|
||||
// put the path supplied to `MCSplitDwarfFile` into the debug info of the final
|
||||
|
@ -926,8 +924,7 @@ pub fn build_compile_unit_di_node<'ll, 'tcx>(
|
|||
);
|
||||
let val = llvm::LLVMMetadataAsValue(debug_context.llcontext, gcov_metadata);
|
||||
|
||||
let llvm_gcov_ident = cstr!("llvm.gcov");
|
||||
llvm::LLVMAddNamedMetadataOperand(debug_context.llmod, llvm_gcov_ident.as_ptr(), val);
|
||||
llvm::LLVMAddNamedMetadataOperand(debug_context.llmod, c"llvm.gcov".as_ptr(), val);
|
||||
}
|
||||
|
||||
return unit_metadata;
|
||||
|
|
|
@ -112,7 +112,7 @@ pub fn finalize(&self, sess: &Session) {
|
|||
llvm::LLVMRustAddModuleFlag(
|
||||
self.llmod,
|
||||
llvm::LLVMModFlagBehavior::Warning,
|
||||
"Dwarf Version\0".as_ptr().cast(),
|
||||
c"Dwarf Version".as_ptr().cast(),
|
||||
dwarf_version,
|
||||
);
|
||||
} else {
|
||||
|
@ -120,17 +120,16 @@ pub fn finalize(&self, sess: &Session) {
|
|||
llvm::LLVMRustAddModuleFlag(
|
||||
self.llmod,
|
||||
llvm::LLVMModFlagBehavior::Warning,
|
||||
"CodeView\0".as_ptr().cast(),
|
||||
c"CodeView".as_ptr().cast(),
|
||||
1,
|
||||
)
|
||||
}
|
||||
|
||||
// Prevent bitcode readers from deleting the debug info.
|
||||
let ptr = "Debug Info Version\0".as_ptr();
|
||||
llvm::LLVMRustAddModuleFlag(
|
||||
self.llmod,
|
||||
llvm::LLVMModFlagBehavior::Warning,
|
||||
ptr.cast(),
|
||||
c"Debug Info Version".as_ptr().cast(),
|
||||
llvm::LLVMRustDebugMetadataVersion(),
|
||||
);
|
||||
}
|
||||
|
|
|
@ -8,6 +8,7 @@
|
|||
#![feature(rustdoc_internals)]
|
||||
#![doc(rust_logo)]
|
||||
#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
|
||||
#![cfg_attr(bootstrap, feature(c_str_literals))]
|
||||
#![feature(exact_size_is_empty)]
|
||||
#![feature(extern_types)]
|
||||
#![feature(hash_raw_entry)]
|
||||
|
|
|
@ -210,7 +210,6 @@
|
|||
"crossbeam-epoch",
|
||||
"crossbeam-utils",
|
||||
"crypto-common",
|
||||
"cstr",
|
||||
"darling",
|
||||
"darling_core",
|
||||
"darling_macro",
|
||||
|
|
Loading…
Reference in a new issue