// names (choose between `dbg`, `debug`, `debuginfo`, `debug_info` etc.).
fn dbg_var_addr(&mut self, _dbg_var: Self::DIVariable, _scope_metadata: Self::DIScope, _variable_alloca: Self::Value, _direct_offset: Size, _indirect_offsets: &[Size]) {
unimplemented!();
- /*let cx = self.cx();
-
- // Convert the direct and indirect offsets to address ops.
- // FIXME(eddyb) use `const`s instead of getting the values via FFI,
- // the values should match the ones in the DWARF standard anyway.
- let op_deref = || unsafe { llvm::LLVMRustDIBuilderCreateOpDeref() };
- let op_plus_uconst = || unsafe { llvm::LLVMRustDIBuilderCreateOpPlusUconst() };
- let mut addr_ops = SmallVec::<[_; 8]>::new();
-
- if direct_offset.bytes() > 0 {
- addr_ops.push(op_plus_uconst());
- addr_ops.push(direct_offset.bytes() as i64);
- }
- for &offset in indirect_offsets {
- addr_ops.push(op_deref());
- if offset.bytes() > 0 {
- addr_ops.push(op_plus_uconst());
- addr_ops.push(offset.bytes() as i64);
- }
- }
-
- // FIXME(eddyb) maybe this information could be extracted from `dbg_var`,
- // to avoid having to pass it down in both places?
- // NB: `var` doesn't seem to know about the column, so that's a limitation.
- let dbg_loc = cx.create_debug_loc(scope_metadata, span);
- unsafe {
- // FIXME(eddyb) replace `llvm.dbg.declare` with `llvm.dbg.addr`.
- llvm::LLVMRustDIBuilderInsertDeclareAtEnd(
- DIB(cx),
- variable_alloca,
- dbg_var,
- addr_ops.as_ptr(),
- addr_ops.len() as c_uint,
- dbg_loc,
- self.llbb(),
- );
- }*/
}
- /*fn set_source_location(&mut self, scope: Self::DIScope, span: Span) {
- unimplemented!();
- /*debug!("set_source_location: {}", self.sess().source_map().span_to_string(span));
-
- let dbg_loc = self.cx().create_debug_loc(scope, span);
-
- unsafe {
- llvm::LLVMSetCurrentDebugLocation(self.llbuilder, dbg_loc);
- }*/
- }*/
-
fn insert_reference_to_gdb_debug_scripts_section_global(&mut self) {
- // TODO: replace with gcc_jit_context_new_global_with_initializer() if it's added:
+ // TODO(antoyo): replace with gcc_jit_context_new_global_with_initializer() if it's added:
// https://gcc.gnu.org/pipermail/jit/2020q3/001225.html
//
// Call the function to initialize global values here.
use std::iter;
for crate_num in self.cx.tcx.crates(()).iter().copied().chain(iter::once(LOCAL_CRATE)) {
- // FIXME: better way to find if a crate is of proc-macro type?
+ // FIXME(antoyo): better way to find if a crate is of proc-macro type?
if crate_num == LOCAL_CRATE || self.cx.tcx.dep_kind(crate_num) != CrateDepKind::MacrosOnly {
// NOTE: proc-macro crates are not included in the executable, so don't call their
// initialization routine.
}
}
- // TODO
- //gdb::insert_reference_to_gdb_debug_scripts_section_global(self)
+ // TODO(antoyo): insert reference to gdb debug scripts section global.
}
fn set_var_name(&mut self, _value: RValue<'gcc>, _name: &str) {
unimplemented!();
- // Avoid wasting time if LLVM value names aren't even enabled.
- /*if self.sess().fewer_names() {
- return;
- }
-
- // Only function parameters and instructions are local to a function,
- // don't change the name of anything else (e.g. globals).
- let param_or_inst = unsafe {
- llvm::LLVMIsAArgument(value).is_some() || llvm::LLVMIsAInstruction(value).is_some()
- };
- if !param_or_inst {
- return;
- }
-
- // Avoid replacing the name if it already exists.
- // While we could combine the names somehow, it'd
- // get noisy quick, and the usefulness is dubious.
- if llvm::get_value_name(value).is_empty() {
- llvm::set_value_name(value, name.as_bytes());
- }*/
}
fn set_dbg_loc(&mut self, _dbg_loc: Self::DILocation) {
unimplemented!();
- /*unsafe {
- let dbg_loc_as_llval = llvm::LLVMRustMetadataAsValue(self.cx().llcx, dbg_loc);
- llvm::LLVMSetCurrentDebugLocation(self.llbuilder, dbg_loc_as_llval);
- }*/
}
}
impl<'gcc, 'tcx> DebugInfoMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
fn create_vtable_metadata(&self, _ty: Ty<'tcx>, _vtable: Self::Value) {
- //metadata::create_vtable_metadata(self, ty, vtable)
+ // TODO(antoyo)
}
fn create_function_debug_context(&self, _instance: Instance<'tcx>, _fn_abi: &FnAbi<'tcx, Ty<'tcx>>, _llfn: RValue<'gcc>, _mir: &mir::Body<'tcx>) -> Option<FunctionDebugContext<Self::DIScope, Self::DILocation>> {
- // TODO
+ // TODO(antoyo)
None
}
}
fn debuginfo_finalize(&self) {
- //unimplemented!();
+ // TODO(antoyo)
}
fn create_dbg_var(&self, _variable_name: Symbol, _variable_type: Ty<'tcx>, _scope_metadata: Self::DIScope, _variable_kind: VariableKind, _span: Span) -> Self::DIVariable {
fn dbg_scope_fn(&self, _instance: Instance<'tcx>, _fn_abi: &FnAbi<'tcx, Ty<'tcx>>, _maybe_definition_llfn: Option<RValue<'gcc>>) -> Self::DIScope {
unimplemented!();
- /*let def_id = instance.def_id();
- let containing_scope = get_containing_scope(self, instance);
- let span = self.tcx.def_span(def_id);
- let loc = self.lookup_debug_loc(span.lo());
- let file_metadata = file_metadata(self, &loc.file);
-
- let function_type_metadata = unsafe {
- let fn_signature = get_function_signature(self, fn_abi);
- llvm::LLVMRustDIBuilderCreateSubroutineType(DIB(self), fn_signature)
- };
-
- // Find the enclosing function, in case this is a closure.
- let def_key = self.tcx().def_key(def_id);
- let mut name = def_key.disambiguated_data.data.to_string();
-
- let enclosing_fn_def_id = self.tcx().closure_base_def_id(def_id);
-
- // Get_template_parameters() will append a `<...>` clause to the function
- // name if necessary.
- let generics = self.tcx().generics_of(enclosing_fn_def_id);
- let substs = instance.substs.truncate_to(self.tcx(), generics);
- let template_parameters = get_template_parameters(self, &generics, substs, &mut name);
-
- let linkage_name = &mangled_name_of_instance(self, instance).name;
- // Omit the linkage_name if it is the same as subprogram name.
- let linkage_name = if &name == linkage_name { "" } else { linkage_name };
-
- // FIXME(eddyb) does this need to be separate from `loc.line` for some reason?
- let scope_line = loc.line;
-
- let mut flags = DIFlags::FlagPrototyped;
-
- if fn_abi.ret.layout.abi.is_uninhabited() {
- flags |= DIFlags::FlagNoReturn;
- }
-
- let mut spflags = DISPFlags::SPFlagDefinition;
- if is_node_local_to_unit(self, def_id) {
- spflags |= DISPFlags::SPFlagLocalToUnit;
- }
- if self.sess().opts.optimize != config::OptLevel::No {
- spflags |= DISPFlags::SPFlagOptimized;
- }
- if let Some((id, _)) = self.tcx.entry_fn(LOCAL_CRATE) {
- if id.to_def_id() == def_id {
- spflags |= DISPFlags::SPFlagMainSubprogram;
- }
- }
-
- unsafe {
- return llvm::LLVMRustDIBuilderCreateFunction(
- DIB(self),
- containing_scope,
- name.as_ptr().cast(),
- name.len(),
- linkage_name.as_ptr().cast(),
- linkage_name.len(),
- file_metadata,
- loc.line.unwrap_or(UNKNOWN_LINE_NUMBER),
- function_type_metadata,
- scope_line.unwrap_or(UNKNOWN_LINE_NUMBER),
- flags,
- spflags,
- maybe_definition_llfn,
- template_parameters,
- None,
- );
- }
-
- fn get_function_signature<'ll, 'tcx>(
- cx: &CodegenCx<'ll, 'tcx>,
- fn_abi: &FnAbi<'tcx, Ty<'tcx>>,
- ) -> &'ll DIArray {
- if cx.sess().opts.debuginfo == DebugInfo::Limited {
- return create_DIArray(DIB(cx), &[]);
- }
-
- let mut signature = Vec::with_capacity(fn_abi.args.len() + 1);
-
- // Return type -- llvm::DIBuilder wants this at index 0
- signature.push(if fn_abi.ret.is_ignore() {
- None
- } else {
- Some(type_metadata(cx, fn_abi.ret.layout.ty, rustc_span::DUMMY_SP))
- });
-
- // Arguments types
- if cx.sess().target.options.is_like_msvc {
- // FIXME(#42800):
- // There is a bug in MSDIA that leads to a crash when it encounters
- // a fixed-size array of `u8` or something zero-sized in a
- // function-type (see #40477).
- // As a workaround, we replace those fixed-size arrays with a
- // pointer-type. So a function `fn foo(a: u8, b: [u8; 4])` would
- // appear as `fn foo(a: u8, b: *const u8)` in debuginfo,
- // and a function `fn bar(x: [(); 7])` as `fn bar(x: *const ())`.
- // This transformed type is wrong, but these function types are
- // already inaccurate due to ABI adjustments (see #42800).
- signature.extend(fn_abi.args.iter().map(|arg| {
- let t = arg.layout.ty;
- let t = match t.kind() {
- ty::Array(ct, _)
- if (*ct == cx.tcx.types.u8) || cx.layout_of(ct).is_zst() =>
- {
- cx.tcx.mk_imm_ptr(ct)
- }
- _ => t,
- };
- Some(type_metadata(cx, t, rustc_span::DUMMY_SP))
- }));
- } else {
- signature.extend(
- fn_abi
- .args
- .iter()
- .map(|arg| Some(type_metadata(cx, arg.layout.ty, rustc_span::DUMMY_SP))),
- );
- }
-
- create_DIArray(DIB(cx), &signature[..])
- }
-
- fn get_template_parameters<'ll, 'tcx>(
- cx: &CodegenCx<'ll, 'tcx>,
- generics: &ty::Generics,
- substs: SubstsRef<'tcx>,
- name_to_append_suffix_to: &mut String,
- ) -> &'ll DIArray {
- if substs.types().next().is_none() {
- return create_DIArray(DIB(cx), &[]);
- }
-
- name_to_append_suffix_to.push('<');
- for (i, actual_type) in substs.types().enumerate() {
- if i != 0 {
- name_to_append_suffix_to.push(',');
- }
-
- let actual_type =
- cx.tcx.normalize_erasing_regions(ParamEnv::reveal_all(), actual_type);
- // Add actual type name to <...> clause of function name
- let actual_type_name = compute_debuginfo_type_name(cx.tcx(), actual_type, true);
- name_to_append_suffix_to.push_str(&actual_type_name[..]);
- }
- name_to_append_suffix_to.push('>');
-
- // Again, only create type information if full debuginfo is enabled
- let template_params: Vec<_> = if cx.sess().opts.debuginfo == DebugInfo::Full {
- let names = get_parameter_names(cx, generics);
- substs
- .iter()
- .zip(names)
- .filter_map(|(kind, name)| {
- if let GenericArgKind::Type(ty) = kind.unpack() {
- let actual_type =
- cx.tcx.normalize_erasing_regions(ParamEnv::reveal_all(), ty);
- let actual_type_metadata =
- type_metadata(cx, actual_type, rustc_span::DUMMY_SP);
- let name = name.as_str();
- Some(unsafe {
- Some(llvm::LLVMRustDIBuilderCreateTemplateTypeParameter(
- DIB(cx),
- None,
- name.as_ptr().cast(),
- name.len(),
- actual_type_metadata,
- ))
- })
- } else {
- None
- }
- })
- .collect()
- } else {
- vec![]
- };
-
- create_DIArray(DIB(cx), &template_params[..])
- }
-
- fn get_parameter_names(cx: &CodegenCx<'_, '_>, generics: &ty::Generics) -> Vec<Symbol> {
- let mut names = generics
- .parent
- .map_or(vec![], |def_id| get_parameter_names(cx, cx.tcx.generics_of(def_id)));
- names.extend(generics.params.iter().map(|param| param.name));
- names
- }
-
- fn get_containing_scope<'ll, 'tcx>(
- cx: &CodegenCx<'ll, 'tcx>,
- instance: Instance<'tcx>,
- ) -> &'ll DIScope {
- // First, let's see if this is a method within an inherent impl. Because
- // if yes, we want to make the result subroutine DIE a child of the
- // subroutine's self-type.
- let self_type = cx.tcx.impl_of_method(instance.def_id()).and_then(|impl_def_id| {
- // If the method does *not* belong to a trait, proceed
- if cx.tcx.trait_id_of_impl(impl_def_id).is_none() {
- let impl_self_ty = cx.tcx.subst_and_normalize_erasing_regions(
- instance.substs,
- ty::ParamEnv::reveal_all(),
- &cx.tcx.type_of(impl_def_id),
- );
-
- // Only "class" methods are generally understood by LLVM,
- // so avoid methods on other types (e.g., `<*mut T>::null`).
- match impl_self_ty.kind() {
- ty::Adt(def, ..) if !def.is_box() => {
- // Again, only create type information if full debuginfo is enabled
- if cx.sess().opts.debuginfo == DebugInfo::Full
- && !impl_self_ty.needs_subst()
- {
- Some(type_metadata(cx, impl_self_ty, rustc_span::DUMMY_SP))
- } else {
- Some(namespace::item_namespace(cx, def.did))
- }
- }
- _ => None,
- }
- } else {
- // For trait method impls we still use the "parallel namespace"
- // strategy
- None
- }
- });
-
- self_type.unwrap_or_else(|| {
- namespace::item_namespace(
- cx,
- DefId {
- krate: instance.def_id().krate,
- index: cx
- .tcx
- .def_key(instance.def_id())
- .parent
- .expect("get_containing_scope: missing parent?"),
- },
- )
- })
- }*/
}
fn dbg_loc(&self, _scope: Self::DIScope, _inlined_at: Option<Self::DILocation>, _span: Span) -> Self::DILocation {
unimplemented!();
- /*let DebugLoc { line, col, .. } = self.lookup_debug_loc(span.lo());
-
- unsafe {
- llvm::LLVMRustDIBuilderCreateDebugLocation(
- utils::debug_context(self).llcontext,
- line.unwrap_or(UNKNOWN_LINE_NUMBER),
- col.unwrap_or(UNKNOWN_COLUMN_NUMBER),
- scope,
- inlined_at,
- )
- }*/
}
}
projects / rust.git / blobdiff