827 lines
28 KiB
Rust
827 lines
28 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution and at
|
|
// http://rust-lang.org/COPYRIGHT.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
use std::map;
|
|
use std::map::HashMap;
|
|
use lib::llvm::llvm;
|
|
use lib::llvm::ValueRef;
|
|
use trans::common::*;
|
|
use trans::base;
|
|
use trans::build::B;
|
|
use middle::ty;
|
|
use syntax::{ast, codemap, ast_util, ast_map};
|
|
use syntax::parse::token::ident_interner;
|
|
use codemap::{span, CharPos};
|
|
use ast::Ty;
|
|
use pat_util::*;
|
|
use util::ppaux::ty_to_str;
|
|
use driver::session::session;
|
|
|
|
export create_local_var;
|
|
export create_function;
|
|
export create_arg;
|
|
export update_source_pos;
|
|
export debug_ctxt;
|
|
export mk_ctxt;
|
|
|
|
const LLVMDebugVersion: int = (9 << 16);
|
|
|
|
const DW_LANG_RUST: int = 0x9000;
|
|
const DW_VIRTUALITY_none: int = 0;
|
|
|
|
const CompileUnitTag: int = 17;
|
|
const FileDescriptorTag: int = 41;
|
|
const SubprogramTag: int = 46;
|
|
const SubroutineTag: int = 21;
|
|
const BasicTypeDescriptorTag: int = 36;
|
|
const AutoVariableTag: int = 256;
|
|
const ArgVariableTag: int = 257;
|
|
const ReturnVariableTag: int = 258;
|
|
const LexicalBlockTag: int = 11;
|
|
const PointerTypeTag: int = 15;
|
|
const StructureTypeTag: int = 19;
|
|
const MemberTag: int = 13;
|
|
const ArrayTypeTag: int = 1;
|
|
const SubrangeTag: int = 33;
|
|
|
|
const DW_ATE_boolean: int = 0x02;
|
|
const DW_ATE_float: int = 0x04;
|
|
const DW_ATE_signed: int = 0x05;
|
|
const DW_ATE_signed_char: int = 0x06;
|
|
const DW_ATE_unsigned: int = 0x07;
|
|
const DW_ATE_unsigned_char: int = 0x08;
|
|
|
|
fn llstr(s: ~str) -> ValueRef {
|
|
str::as_c_str(s, |sbuf| {
|
|
llvm::LLVMMDString(sbuf, str::len(s) as libc::c_uint)
|
|
})
|
|
}
|
|
fn lltag(lltag: int) -> ValueRef {
|
|
lli32(LLVMDebugVersion | lltag)
|
|
}
|
|
fn lli32(val: int) -> ValueRef {
|
|
C_i32(val as i32)
|
|
}
|
|
fn lli64(val: int) -> ValueRef {
|
|
C_i64(val as i64)
|
|
}
|
|
fn lli1(bval: bool) -> ValueRef {
|
|
C_bool(bval)
|
|
}
|
|
fn llmdnode(elems: ~[ValueRef]) -> ValueRef unsafe {
|
|
llvm::LLVMMDNode(vec::raw::to_ptr(elems),
|
|
vec::len(elems) as libc::c_uint)
|
|
}
|
|
fn llunused() -> ValueRef {
|
|
lli32(0x0)
|
|
}
|
|
fn llnull() -> ValueRef unsafe {
|
|
cast::reinterpret_cast(&ptr::null::<ValueRef>())
|
|
}
|
|
|
|
fn add_named_metadata(cx: @crate_ctxt, name: ~str, val: ValueRef) {
|
|
str::as_c_str(name, |sbuf| {
|
|
llvm::LLVMAddNamedMetadataOperand(cx.llmod, sbuf, val)
|
|
})
|
|
}
|
|
|
|
////////////////
|
|
|
|
type debug_ctxt = {
|
|
llmetadata: metadata_cache,
|
|
names: namegen,
|
|
crate_file: ~str
|
|
};
|
|
|
|
fn mk_ctxt(crate: ~str, intr: @ident_interner) -> debug_ctxt {
|
|
{llmetadata: map::HashMap(),
|
|
names: new_namegen(intr),
|
|
crate_file: crate}
|
|
}
|
|
|
|
fn update_cache(cache: metadata_cache, mdtag: int, val: debug_metadata) {
|
|
let existing = if cache.contains_key(mdtag) {
|
|
cache.get(mdtag)
|
|
} else {
|
|
~[]
|
|
};
|
|
cache.insert(mdtag, vec::append_one(existing, val));
|
|
}
|
|
|
|
type metadata<T> = {node: ValueRef, data: T};
|
|
|
|
type file_md = {path: ~str};
|
|
type compile_unit_md = {name: ~str};
|
|
type subprogram_md = {id: ast::node_id};
|
|
type local_var_md = {id: ast::node_id};
|
|
type tydesc_md = {hash: uint};
|
|
type block_md = {start: codemap::Loc, end: codemap::Loc};
|
|
type argument_md = {id: ast::node_id};
|
|
type retval_md = {id: ast::node_id};
|
|
|
|
type metadata_cache = HashMap<int, ~[debug_metadata]>;
|
|
|
|
enum debug_metadata {
|
|
file_metadata(@metadata<file_md>),
|
|
compile_unit_metadata(@metadata<compile_unit_md>),
|
|
subprogram_metadata(@metadata<subprogram_md>),
|
|
local_var_metadata(@metadata<local_var_md>),
|
|
tydesc_metadata(@metadata<tydesc_md>),
|
|
block_metadata(@metadata<block_md>),
|
|
argument_metadata(@metadata<argument_md>),
|
|
retval_metadata(@metadata<retval_md>),
|
|
}
|
|
|
|
fn cast_safely<T: Copy, U>(val: T) -> U unsafe {
|
|
let val2 = val;
|
|
return cast::transmute(move val2);
|
|
}
|
|
|
|
fn md_from_metadata<T>(val: debug_metadata) -> T unsafe {
|
|
match val {
|
|
file_metadata(md) => cast_safely(md),
|
|
compile_unit_metadata(md) => cast_safely(md),
|
|
subprogram_metadata(md) => cast_safely(md),
|
|
local_var_metadata(md) => cast_safely(md),
|
|
tydesc_metadata(md) => cast_safely(md),
|
|
block_metadata(md) => cast_safely(md),
|
|
argument_metadata(md) => cast_safely(md),
|
|
retval_metadata(md) => cast_safely(md)
|
|
}
|
|
}
|
|
|
|
fn cached_metadata<T: Copy>(cache: metadata_cache, mdtag: int,
|
|
eq: fn(md: T) -> bool) -> Option<T> unsafe {
|
|
if cache.contains_key(mdtag) {
|
|
let items = cache.get(mdtag);
|
|
for items.each |item| {
|
|
let md: T = md_from_metadata::<T>(*item);
|
|
if eq(md) {
|
|
return option::Some(md);
|
|
}
|
|
}
|
|
}
|
|
return option::None;
|
|
}
|
|
|
|
fn create_compile_unit(cx: @crate_ctxt)
|
|
-> @metadata<compile_unit_md> unsafe {
|
|
let cache = get_cache(cx);
|
|
let crate_name = cx.dbg_cx.get().crate_file;
|
|
let tg = CompileUnitTag;
|
|
match cached_metadata::<@metadata<compile_unit_md>>(cache, tg,
|
|
|md| md.data.name == crate_name) {
|
|
option::Some(md) => return md,
|
|
option::None => ()
|
|
}
|
|
|
|
let (_, work_dir) = get_file_path_and_dir(cx.sess.working_dir.to_str(),
|
|
crate_name);
|
|
let unit_metadata = ~[lltag(tg),
|
|
llunused(),
|
|
lli32(DW_LANG_RUST),
|
|
llstr(crate_name),
|
|
llstr(work_dir),
|
|
llstr(env!("CFG_VERSION")),
|
|
lli1(true), // deprecated: main compile unit
|
|
lli1(cx.sess.opts.optimize != session::No),
|
|
llstr(~""), // flags (???)
|
|
lli32(0) // runtime version (???)
|
|
];
|
|
let unit_node = llmdnode(unit_metadata);
|
|
add_named_metadata(cx, ~"llvm.dbg.cu", unit_node);
|
|
let mdval = @{node: unit_node, data: {name: crate_name}};
|
|
update_cache(cache, tg, compile_unit_metadata(mdval));
|
|
|
|
return mdval;
|
|
}
|
|
|
|
fn get_cache(cx: @crate_ctxt) -> metadata_cache {
|
|
cx.dbg_cx.get().llmetadata
|
|
}
|
|
|
|
fn get_file_path_and_dir(work_dir: &str, full_path: &str) -> (~str, ~str) {
|
|
(if str::starts_with(full_path, work_dir) {
|
|
str::slice(full_path, str::len(work_dir) + 1u,
|
|
str::len(full_path))
|
|
} else {
|
|
str::from_slice(full_path)
|
|
}, str::from_slice(work_dir))
|
|
}
|
|
|
|
fn create_file(cx: @crate_ctxt, full_path: ~str) -> @metadata<file_md> {
|
|
let cache = get_cache(cx);;
|
|
let tg = FileDescriptorTag;
|
|
match cached_metadata::<@metadata<file_md>>(
|
|
cache, tg, |md| md.data.path == full_path) {
|
|
option::Some(md) => return md,
|
|
option::None => ()
|
|
}
|
|
|
|
let (file_path, work_dir) =
|
|
get_file_path_and_dir(cx.sess.working_dir.to_str(),
|
|
full_path);
|
|
let unit_node = create_compile_unit(cx).node;
|
|
let file_md = ~[lltag(tg),
|
|
llstr(file_path),
|
|
llstr(work_dir),
|
|
unit_node];
|
|
let val = llmdnode(file_md);
|
|
let mdval = @{node: val, data: {path: full_path}};
|
|
update_cache(cache, tg, file_metadata(mdval));
|
|
return mdval;
|
|
}
|
|
|
|
fn line_from_span(cm: @codemap::CodeMap, sp: span) -> uint {
|
|
cm.lookup_char_pos(sp.lo).line
|
|
}
|
|
|
|
fn create_block(cx: block) -> @metadata<block_md> {
|
|
let cache = get_cache(cx.ccx());
|
|
let mut cx = cx;
|
|
while cx.node_info.is_none() {
|
|
match cx.parent {
|
|
Some(b) => cx = b,
|
|
None => fail
|
|
}
|
|
}
|
|
let sp = cx.node_info.get().span;
|
|
|
|
let start = cx.sess().codemap.lookup_char_pos(sp.lo);
|
|
let fname = start.file.name;
|
|
let end = cx.sess().codemap.lookup_char_pos(sp.hi);
|
|
let tg = LexicalBlockTag;
|
|
/*alt cached_metadata::<@metadata<block_md>>(
|
|
cache, tg,
|
|
{|md| start == md.data.start && end == md.data.end}) {
|
|
option::Some(md) { return md; }
|
|
option::None {}
|
|
}*/
|
|
|
|
let parent = match cx.parent {
|
|
None => create_function(cx.fcx).node,
|
|
Some(bcx) => create_block(bcx).node
|
|
};
|
|
let file_node = create_file(cx.ccx(), fname);
|
|
let unique_id = match cache.find(LexicalBlockTag) {
|
|
option::Some(v) => vec::len(v) as int,
|
|
option::None => 0
|
|
};
|
|
let lldata = ~[lltag(tg),
|
|
parent,
|
|
lli32(start.line.to_int()),
|
|
lli32(start.col.to_int()),
|
|
file_node.node,
|
|
lli32(unique_id)
|
|
];
|
|
let val = llmdnode(lldata);
|
|
let mdval = @{node: val, data: {start: start, end: end}};
|
|
//update_cache(cache, tg, block_metadata(mdval));
|
|
return mdval;
|
|
}
|
|
|
|
fn size_and_align_of(cx: @crate_ctxt, t: ty::t) -> (int, int) {
|
|
let llty = type_of::type_of(cx, t);
|
|
(shape::llsize_of_real(cx, llty) as int,
|
|
shape::llalign_of_pref(cx, llty) as int)
|
|
}
|
|
|
|
fn create_basic_type(cx: @crate_ctxt, t: ty::t, span: span)
|
|
-> @metadata<tydesc_md> {
|
|
let cache = get_cache(cx);
|
|
let tg = BasicTypeDescriptorTag;
|
|
match cached_metadata::<@metadata<tydesc_md>>(
|
|
cache, tg, |md| ty::type_id(t) == md.data.hash) {
|
|
option::Some(md) => return md,
|
|
option::None => ()
|
|
}
|
|
|
|
let (name, encoding) = (~"uint", DW_ATE_unsigned);
|
|
|
|
let fname = filename_from_span(cx, span);
|
|
let file_node = create_file(cx, fname);
|
|
let cu_node = create_compile_unit(cx);
|
|
let (size, align) = size_and_align_of(cx, t);
|
|
let lldata = ~[lltag(tg),
|
|
cu_node.node,
|
|
llstr(name),
|
|
file_node.node,
|
|
lli32(0), //XXX source line
|
|
lli64(size * 8), // size in bits
|
|
lli64(align * 8), // alignment in bits
|
|
lli64(0), //XXX offset?
|
|
lli32(0), //XXX flags?
|
|
lli32(encoding)];
|
|
let llnode = llmdnode(lldata);
|
|
let mdval = @{node: llnode, data: {hash: ty::type_id(t)}};
|
|
update_cache(cache, tg, tydesc_metadata(mdval));
|
|
add_named_metadata(cx, ~"llvm.dbg.ty", llnode);
|
|
return mdval;
|
|
}
|
|
|
|
fn create_pointer_type(cx: @crate_ctxt, t: ty::t, span: span,
|
|
pointee: @metadata<tydesc_md>)
|
|
-> @metadata<tydesc_md> {
|
|
let tg = PointerTypeTag;
|
|
/*let cache = cx.llmetadata;
|
|
match cached_metadata::<@metadata<tydesc_md>>(
|
|
cache, tg, {|md| ty::hash_ty(t) == ty::hash_ty(md.data.hash)}) {
|
|
option::Some(md) { return md; }
|
|
option::None {}
|
|
}*/
|
|
let (size, align) = size_and_align_of(cx, t);
|
|
let fname = filename_from_span(cx, span);
|
|
let file_node = create_file(cx, fname);
|
|
//let cu_node = create_compile_unit(cx, fname);
|
|
let llnode = create_derived_type(tg, file_node.node, ~"", 0, size * 8,
|
|
align * 8, 0, pointee.node);
|
|
let mdval = @{node: llnode, data: {hash: ty::type_id(t)}};
|
|
//update_cache(cache, tg, tydesc_metadata(mdval));
|
|
add_named_metadata(cx, ~"llvm.dbg.ty", llnode);
|
|
return mdval;
|
|
}
|
|
|
|
type struct_ctxt = {
|
|
file: ValueRef,
|
|
name: ~str,
|
|
line: int,
|
|
mut members: ~[ValueRef],
|
|
mut total_size: int,
|
|
align: int
|
|
};
|
|
|
|
fn finish_structure(cx: @struct_ctxt) -> ValueRef {
|
|
return create_composite_type(StructureTypeTag, cx.name, cx.file, cx.line,
|
|
cx.total_size, cx.align, 0, option::None,
|
|
option::Some(cx.members));
|
|
}
|
|
|
|
fn create_structure(file: @metadata<file_md>, name: ~str, line: int)
|
|
-> @struct_ctxt {
|
|
let cx = @{file: file.node,
|
|
name: name,
|
|
line: line,
|
|
mut members: ~[],
|
|
mut total_size: 0,
|
|
align: 64 //XXX different alignment per arch?
|
|
};
|
|
return cx;
|
|
}
|
|
|
|
fn create_derived_type(type_tag: int, file: ValueRef, name: ~str, line: int,
|
|
size: int, align: int, offset: int, ty: ValueRef)
|
|
-> ValueRef {
|
|
let lldata = ~[lltag(type_tag),
|
|
file,
|
|
llstr(name),
|
|
file,
|
|
lli32(line),
|
|
lli64(size),
|
|
lli64(align),
|
|
lli64(offset),
|
|
lli32(0),
|
|
ty];
|
|
return llmdnode(lldata);
|
|
}
|
|
|
|
fn add_member(cx: @struct_ctxt, name: ~str, line: int, size: int, align: int,
|
|
ty: ValueRef) {
|
|
cx.members.push(create_derived_type(MemberTag, cx.file, name, line,
|
|
size * 8, align * 8, cx.total_size,
|
|
ty));
|
|
cx.total_size += size * 8;
|
|
}
|
|
|
|
fn create_record(cx: @crate_ctxt, t: ty::t, fields: ~[ast::ty_field],
|
|
span: span) -> @metadata<tydesc_md> {
|
|
let fname = filename_from_span(cx, span);
|
|
let file_node = create_file(cx, fname);
|
|
let scx = create_structure(file_node,
|
|
cx.sess.str_of(
|
|
(cx.dbg_cx.get().names)(~"rec")),
|
|
line_from_span(cx.sess.codemap,
|
|
span) as int);
|
|
for fields.each |field| {
|
|
let field_t = ty::get_field(cx.tcx, t, field.node.ident).mt.ty;
|
|
let ty_md = create_ty(cx, field_t, field.node.mt.ty);
|
|
let (size, align) = size_and_align_of(cx, field_t);
|
|
add_member(scx, cx.sess.str_of(field.node.ident),
|
|
line_from_span(cx.sess.codemap, field.span) as int,
|
|
size as int, align as int, ty_md.node);
|
|
}
|
|
let mdval = @{node: finish_structure(scx), data:{hash: ty::type_id(t)}};
|
|
return mdval;
|
|
}
|
|
|
|
fn create_boxed_type(cx: @crate_ctxt, outer: ty::t, _inner: ty::t,
|
|
span: span, boxed: @metadata<tydesc_md>)
|
|
-> @metadata<tydesc_md> {
|
|
//let tg = StructureTypeTag;
|
|
/*let cache = cx.llmetadata;
|
|
match cached_metadata::<@metadata<tydesc_md>>(
|
|
cache, tg, {|md| ty::hash_ty(outer) == ty::hash_ty(md.data.hash)}) {
|
|
option::Some(md) { return md; }
|
|
option::None {}
|
|
}*/
|
|
let fname = filename_from_span(cx, span);
|
|
let file_node = create_file(cx, fname);
|
|
//let cu_node = create_compile_unit_metadata(cx, fname);
|
|
let uint_t = ty::mk_uint(cx.tcx);
|
|
let refcount_type = create_basic_type(cx, uint_t, span);
|
|
let scx = create_structure(file_node, ty_to_str(cx.tcx, outer), 0);
|
|
add_member(scx, ~"refcnt", 0, sys::size_of::<uint>() as int,
|
|
sys::min_align_of::<uint>() as int, refcount_type.node);
|
|
add_member(scx, ~"boxed", 0, 8, //XXX member_size_and_align(??)
|
|
8, //XXX just a guess
|
|
boxed.node);
|
|
let llnode = finish_structure(scx);
|
|
let mdval = @{node: llnode, data: {hash: ty::type_id(outer)}};
|
|
//update_cache(cache, tg, tydesc_metadata(mdval));
|
|
add_named_metadata(cx, ~"llvm.dbg.ty", llnode);
|
|
return mdval;
|
|
}
|
|
|
|
fn create_composite_type(type_tag: int, name: ~str, file: ValueRef, line: int,
|
|
size: int, align: int, offset: int,
|
|
derived: Option<ValueRef>,
|
|
members: Option<~[ValueRef]>)
|
|
-> ValueRef {
|
|
let lldata = ~[lltag(type_tag),
|
|
file,
|
|
llstr(name), // type name
|
|
file, // source file definition
|
|
lli32(line), // source line definition
|
|
lli64(size), // size of members
|
|
lli64(align), // align
|
|
lli32/*64*/(offset), // offset
|
|
lli32(0), // flags
|
|
if derived.is_none() {
|
|
llnull()
|
|
} else { // derived from
|
|
derived.get()
|
|
},
|
|
if members.is_none() {
|
|
llnull()
|
|
} else { //members
|
|
llmdnode(members.get())
|
|
},
|
|
lli32(0), // runtime language
|
|
llnull()
|
|
];
|
|
return llmdnode(lldata);
|
|
}
|
|
|
|
fn create_vec(cx: @crate_ctxt, vec_t: ty::t, elem_t: ty::t,
|
|
vec_ty_span: codemap::span, elem_ty: @ast::Ty)
|
|
-> @metadata<tydesc_md> {
|
|
let fname = filename_from_span(cx, vec_ty_span);
|
|
let file_node = create_file(cx, fname);
|
|
let elem_ty_md = create_ty(cx, elem_t, elem_ty);
|
|
let scx = create_structure(file_node, ty_to_str(cx.tcx, vec_t), 0);
|
|
let size_t_type = create_basic_type(cx, ty::mk_uint(cx.tcx), vec_ty_span);
|
|
add_member(scx, ~"fill", 0, sys::size_of::<libc::size_t>() as int,
|
|
sys::min_align_of::<libc::size_t>() as int, size_t_type.node);
|
|
add_member(scx, ~"alloc", 0, sys::size_of::<libc::size_t>() as int,
|
|
sys::min_align_of::<libc::size_t>() as int, size_t_type.node);
|
|
let subrange = llmdnode(~[lltag(SubrangeTag), lli64(0), lli64(0)]);
|
|
let (arr_size, arr_align) = size_and_align_of(cx, elem_t);
|
|
let data_ptr = create_composite_type(ArrayTypeTag, ~"", file_node.node, 0,
|
|
arr_size, arr_align, 0,
|
|
option::Some(elem_ty_md.node),
|
|
option::Some(~[subrange]));
|
|
add_member(scx, ~"data", 0, 0, // clang says the size should be 0
|
|
sys::min_align_of::<u8>() as int, data_ptr);
|
|
let llnode = finish_structure(scx);
|
|
return @{node: llnode, data: {hash: ty::type_id(vec_t)}};
|
|
}
|
|
|
|
fn create_ty(_cx: @crate_ctxt, _t: ty::t, _ty: @ast::Ty)
|
|
-> @metadata<tydesc_md> {
|
|
/*let cache = get_cache(cx);
|
|
match cached_metadata::<@metadata<tydesc_md>>(
|
|
cache, tg, {|md| t == md.data.hash}) {
|
|
option::Some(md) { return md; }
|
|
option::None {}
|
|
}*/
|
|
|
|
/* FIXME (#2012): disabled this code as part of the patch that moves
|
|
* recognition of named builtin types into resolve. I tried to fix
|
|
* it, but it seems to already be broken -- it's only called when
|
|
* --xg is given, and compiling with --xg fails on trivial programs.
|
|
*
|
|
* Generating an ast::ty from a ty::t seems like it should not be
|
|
* needed. It is only done to track spans, but you will not get the
|
|
* right spans anyway -- types tend to refer to stuff defined
|
|
* elsewhere, not be self-contained.
|
|
*/
|
|
|
|
fail;
|
|
/*
|
|
fn t_to_ty(cx: crate_ctxt, t: ty::t, span: span) -> @ast::ty {
|
|
let ty = match ty::get(t).struct {
|
|
ty::ty_nil { ast::ty_nil }
|
|
ty::ty_bot { ast::ty_bot }
|
|
ty::ty_bool { ast::ty_bool }
|
|
ty::ty_int(t) { ast::ty_int(t) }
|
|
ty::ty_float(t) { ast::ty_float(t) }
|
|
ty::ty_uint(t) { ast::ty_uint(t) }
|
|
ty::ty_box(mt) { ast::ty_box({ty: t_to_ty(cx, mt.ty, span),
|
|
mutbl: mt.mutbl}) }
|
|
ty::ty_uniq(mt) { ast::ty_uniq({ty: t_to_ty(cx, mt.ty, span),
|
|
mutbl: mt.mutbl}) }
|
|
ty::ty_rec(fields) {
|
|
let fs = ~[];
|
|
for field in fields {
|
|
fs.push({node: {ident: field.ident,
|
|
mt: {ty: t_to_ty(cx, field.mt.ty, span),
|
|
mutbl: field.mt.mutbl}},
|
|
span: span});
|
|
}
|
|
ast::ty_rec(fs)
|
|
}
|
|
ty::ty_vec(mt) { ast::ty_vec({ty: t_to_ty(cx, mt.ty, span),
|
|
mutbl: mt.mutbl}) }
|
|
_ {
|
|
cx.sess.span_bug(span, "t_to_ty: Can't handle this type");
|
|
}
|
|
};
|
|
return @{node: ty, span: span};
|
|
}
|
|
|
|
match ty.node {
|
|
ast::ty_box(mt) {
|
|
let inner_t = match ty::get(t).struct {
|
|
ty::ty_box(boxed) { boxed.ty }
|
|
_ { cx.sess.span_bug(ty.span, "t_to_ty was incoherent"); }
|
|
};
|
|
let md = create_ty(cx, inner_t, mt.ty);
|
|
let box = create_boxed_type(cx, t, inner_t, ty.span, md);
|
|
return create_pointer_type(cx, t, ty.span, box);
|
|
}
|
|
|
|
ast::ty_uniq(mt) {
|
|
let inner_t = match ty::get(t).struct {
|
|
ty::ty_uniq(boxed) { boxed.ty }
|
|
// Hoping we'll have a way to eliminate this check soon.
|
|
_ { cx.sess.span_bug(ty.span, "t_to_ty was incoherent"); }
|
|
};
|
|
let md = create_ty(cx, inner_t, mt.ty);
|
|
return create_pointer_type(cx, t, ty.span, md);
|
|
}
|
|
|
|
ast::ty_infer {
|
|
let inferred = t_to_ty(cx, t, ty.span);
|
|
return create_ty(cx, t, inferred);
|
|
}
|
|
|
|
ast::ty_rec(fields) {
|
|
return create_record(cx, t, fields, ty.span);
|
|
}
|
|
|
|
ast::ty_vec(mt) {
|
|
let inner_t = ty::sequence_element_type(cx.tcx, t);
|
|
let inner_ast_t = t_to_ty(cx, inner_t, mt.ty.span);
|
|
let v = create_vec(cx, t, inner_t, ty.span, inner_ast_t);
|
|
return create_pointer_type(cx, t, ty.span, v);
|
|
}
|
|
|
|
ast::ty_path(_, id) {
|
|
match cx.tcx.def_map.get(id) {
|
|
ast::def_prim_ty(pty) {
|
|
return create_basic_type(cx, t, pty, ty.span);
|
|
}
|
|
_ {}
|
|
}
|
|
}
|
|
|
|
_ {}
|
|
};
|
|
*/
|
|
}
|
|
|
|
fn filename_from_span(cx: @crate_ctxt, sp: codemap::span) -> ~str {
|
|
cx.sess.codemap.lookup_char_pos(sp.lo).file.name
|
|
}
|
|
|
|
fn create_var(type_tag: int, context: ValueRef, name: ~str, file: ValueRef,
|
|
line: int, ret_ty: ValueRef) -> ValueRef {
|
|
let lldata = ~[lltag(type_tag),
|
|
context,
|
|
llstr(name),
|
|
file,
|
|
lli32(line),
|
|
ret_ty,
|
|
lli32(0)
|
|
];
|
|
return llmdnode(lldata);
|
|
}
|
|
|
|
fn create_local_var(bcx: block, local: @ast::local)
|
|
-> @metadata<local_var_md> unsafe {
|
|
let cx = bcx.ccx();
|
|
let cache = get_cache(cx);
|
|
let tg = AutoVariableTag;
|
|
match cached_metadata::<@metadata<local_var_md>>(
|
|
cache, tg, |md| md.data.id == local.node.id) {
|
|
option::Some(md) => return md,
|
|
option::None => ()
|
|
}
|
|
|
|
let name = match local.node.pat.node {
|
|
ast::pat_ident(_, pth, _) => ast_util::path_to_ident(pth),
|
|
// FIXME this should be handled (#2533)
|
|
_ => fail ~"no single variable name for local"
|
|
};
|
|
let loc = cx.sess.codemap.lookup_char_pos(local.span.lo);
|
|
let ty = node_id_type(bcx, local.node.id);
|
|
let tymd = create_ty(cx, ty, local.node.ty);
|
|
let filemd = create_file(cx, loc.file.name);
|
|
let context = match bcx.parent {
|
|
None => create_function(bcx.fcx).node,
|
|
Some(_) => create_block(bcx).node
|
|
};
|
|
let mdnode = create_var(tg, context, cx.sess.str_of(name), filemd.node,
|
|
loc.line as int, tymd.node);
|
|
let mdval = @{node: mdnode, data: {id: local.node.id}};
|
|
update_cache(cache, AutoVariableTag, local_var_metadata(mdval));
|
|
|
|
let llptr = match bcx.fcx.lllocals.find(local.node.id) {
|
|
option::Some(local_mem(v)) => v,
|
|
option::Some(_) => {
|
|
bcx.tcx().sess.span_bug(local.span, ~"local is bound to \
|
|
something weird");
|
|
}
|
|
option::None => {
|
|
match bcx.fcx.lllocals.get(local.node.pat.id) {
|
|
local_imm(v) => v,
|
|
_ => bcx.tcx().sess.span_bug(local.span, ~"local is bound to \
|
|
something weird")
|
|
}
|
|
}
|
|
};
|
|
let declargs = ~[llmdnode(~[llptr]), mdnode];
|
|
trans::build::Call(bcx, cx.intrinsics.get(~"llvm.dbg.declare"),
|
|
declargs);
|
|
return mdval;
|
|
}
|
|
|
|
fn create_arg(bcx: block, arg: ast::arg, sp: span)
|
|
-> Option<@metadata<argument_md>> unsafe {
|
|
let fcx = bcx.fcx, cx = fcx.ccx;
|
|
let cache = get_cache(cx);
|
|
let tg = ArgVariableTag;
|
|
match cached_metadata::<@metadata<argument_md>>(
|
|
cache, ArgVariableTag, |md| md.data.id == arg.id) {
|
|
option::Some(md) => return Some(md),
|
|
option::None => ()
|
|
}
|
|
|
|
let loc = cx.sess.codemap.lookup_char_pos(sp.lo);
|
|
let ty = node_id_type(bcx, arg.id);
|
|
let tymd = create_ty(cx, ty, arg.ty);
|
|
let filemd = create_file(cx, loc.file.name);
|
|
let context = create_function(bcx.fcx);
|
|
|
|
match arg.pat.node {
|
|
ast::pat_ident(_, path, _) => {
|
|
// XXX: This is wrong; it should work for multiple bindings.
|
|
let mdnode = create_var(tg,
|
|
context.node,
|
|
cx.sess.str_of(path.idents.last()),
|
|
filemd.node,
|
|
loc.line as int,
|
|
tymd.node);
|
|
|
|
let mdval = @{node: mdnode, data: {id: arg.id}};
|
|
update_cache(cache, tg, argument_metadata(mdval));
|
|
|
|
let llptr = match fcx.llargs.get(arg.id) {
|
|
local_mem(v) | local_imm(v) => v,
|
|
};
|
|
let declargs = ~[llmdnode(~[llptr]), mdnode];
|
|
trans::build::Call(bcx, cx.intrinsics.get(~"llvm.dbg.declare"),
|
|
declargs);
|
|
return Some(mdval);
|
|
}
|
|
_ => {
|
|
return None;
|
|
}
|
|
}
|
|
}
|
|
|
|
fn update_source_pos(cx: block, s: span) {
|
|
if !cx.sess().opts.debuginfo {
|
|
return;
|
|
}
|
|
let cm = cx.sess().codemap;
|
|
let blockmd = create_block(cx);
|
|
let loc = cm.lookup_char_pos(s.lo);
|
|
let scopedata = ~[lli32(loc.line.to_int()),
|
|
lli32(loc.col.to_int()),
|
|
blockmd.node,
|
|
llnull()];
|
|
let dbgscope = llmdnode(scopedata);
|
|
llvm::LLVMSetCurrentDebugLocation(trans::build::B(cx), dbgscope);
|
|
}
|
|
|
|
fn create_function(fcx: fn_ctxt) -> @metadata<subprogram_md> {
|
|
let cx = fcx.ccx;
|
|
let dbg_cx = cx.dbg_cx.get();
|
|
|
|
debug!("~~");
|
|
log(debug, fcx.id);
|
|
|
|
let sp = fcx.span.get();
|
|
log(debug, cx.sess.codemap.span_to_str(sp));
|
|
|
|
let (ident, ret_ty, id) = match cx.tcx.items.get(fcx.id) {
|
|
ast_map::node_item(item, _) => {
|
|
match item.node {
|
|
ast::item_fn(decl, _, _, _) => {
|
|
(item.ident, decl.output, item.id)
|
|
}
|
|
_ => fcx.ccx.sess.span_bug(item.span, ~"create_function: item \
|
|
bound to non-function")
|
|
}
|
|
}
|
|
ast_map::node_method(method, _, _) => {
|
|
(method.ident, method.decl.output, method.id)
|
|
}
|
|
ast_map::node_expr(expr) => {
|
|
match expr.node {
|
|
ast::expr_fn(_, decl, _, _) => {
|
|
((dbg_cx.names)(~"fn"), decl.output, expr.id)
|
|
}
|
|
ast::expr_fn_block(decl, _, _) => {
|
|
((dbg_cx.names)(~"fn"), decl.output, expr.id)
|
|
}
|
|
_ => fcx.ccx.sess.span_bug(expr.span,
|
|
~"create_function: \
|
|
expected an expr_fn or fn_block here")
|
|
}
|
|
}
|
|
_ => fcx.ccx.sess.bug(~"create_function: unexpected \
|
|
sort of node")
|
|
};
|
|
|
|
log(debug, ident);
|
|
log(debug, id);
|
|
|
|
let cache = get_cache(cx);
|
|
match cached_metadata::<@metadata<subprogram_md>>(
|
|
cache, SubprogramTag, |md| md.data.id == id) {
|
|
option::Some(md) => return md,
|
|
option::None => ()
|
|
}
|
|
|
|
let loc = cx.sess.codemap.lookup_char_pos(sp.lo);
|
|
let file_node = create_file(cx, loc.file.name).node;
|
|
let ty_node = if cx.sess.opts.extra_debuginfo {
|
|
match ret_ty.node {
|
|
ast::ty_nil => llnull(),
|
|
_ => create_ty(cx, ty::node_id_to_type(cx.tcx, id), ret_ty).node
|
|
}
|
|
} else {
|
|
llnull()
|
|
};
|
|
let sub_node = create_composite_type(SubroutineTag, ~"", file_node, 0, 0,
|
|
0, 0, option::None,
|
|
option::Some(~[ty_node]));
|
|
|
|
let fn_metadata = ~[lltag(SubprogramTag),
|
|
llunused(),
|
|
file_node,
|
|
llstr(cx.sess.str_of(ident)),
|
|
//XXX fully-qualified C++ name:
|
|
llstr(cx.sess.str_of(ident)),
|
|
llstr(~""), //XXX MIPS name?????
|
|
file_node,
|
|
lli32(loc.line as int),
|
|
sub_node,
|
|
lli1(false), //XXX static (check export)
|
|
lli1(true), // defined in compilation unit
|
|
lli32(DW_VIRTUALITY_none), // virtual-ness
|
|
lli32(0i), //index into virt func
|
|
/*llnull()*/ lli32(0), // base type with vtbl
|
|
lli32(256), // flags
|
|
lli1(cx.sess.opts.optimize != session::No),
|
|
fcx.llfn
|
|
//list of template params
|
|
//func decl descriptor
|
|
//list of func vars
|
|
];
|
|
let val = llmdnode(fn_metadata);
|
|
add_named_metadata(cx, ~"llvm.dbg.sp", val);
|
|
let mdval = @{node: val, data: {id: id}};
|
|
update_cache(cache, SubprogramTag, subprogram_metadata(mdval));
|
|
|
|
return mdval;
|
|
}
|