#483

Committed 10 May 2024 10:16PM UTC coverage: 73.61% (-0.6%) from 74.182%

Build # #483

Build Type

push

Committed by

Commit Message

Release 0.30.0

Run Details

89 of 102 new or added lines in 7 files covered. (87.25%)

7 existing lines in 6 files now uncovered.

2569 of 3490 relevant lines covered (73.61%)

143183.62 hits per line

Source File
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75.4

/src/test_loader.rs

use crate::config::{types::TraceEngine, Config};
use crate::path_utils::{fix_unc_path, is_coverable_file_path};
use crate::source_analysis::*;
use crate::traces::*;
use gimli::*;
use object::{read::ObjectSection, Object};
use rustc_demangle::demangle;
use std::collections::{HashMap, HashSet};
use std::fs::File;
use std::io;
use std::path::{Path, PathBuf};
use tracing::{debug, error, trace, warn};

/// Describes a function as `low_pc`, `high_pc` and bool representing `is_test`.
type FuncDesc = (u64, u64, FunctionType, Option<String>);

#[derive(Debug, Clone, Copy, PartialEq)]
enum FunctionType {
    Generated,
    Test,
    Standard,
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd)]
pub enum LineType {
    /// Generated test main. Shouldn't be traced.
    TestMain,
    /// Entry of function known to be a test
    TestEntry(u64),
    /// Entry of function. May or may not be test
    FunctionEntry(u64),
    /// Standard statement
    Statement,
    /// Condition
    Condition,
    /// Unknown type
    Unknown,
    /// Unused meta-code
    UnusedGeneric,
}

#[derive(Debug, Clone, PartialEq, Eq, Hash)]
struct SourceLocation {
    pub path: PathBuf,
    pub line: u64,
}

impl From<(PathBuf, usize)> for SourceLocation {
    fn from(other: (PathBuf, usize)) -> Self {
        Self {
            path: other.0,
            line: other.1 as u64,
        }
    }
}

#[derive(Debug, Clone)]
pub struct TracerData {
    /// Currently used to find generated __test::main and remove from coverage,
    /// may have uses in future for finding conditions etc
    pub trace_type: LineType,
    /// Start address of the line
    pub address: Option<u64>,
    /// Length of the instruction
    pub length: u64,
    /// Function name
    pub fn_name: Option<String>,
}

fn generate_func_desc<R, Offset>(
    die: &DebuggingInformationEntry<R, Offset>,
    debug_str: &DebugStr<R>,
) -> Result<FuncDesc>
where
    R: Reader<Offset = Offset>,
    Offset: ReaderOffset,
{
    let mut func_type = FunctionType::Standard;
    let low = die.attr_value(DW_AT_low_pc)?;
    let high = die.attr_value(DW_AT_high_pc)?;
    let linkage = die.attr_value(DW_AT_linkage_name)?;
    let fn_name = die.attr_value(DW_AT_name)?;

    let fn_name: Option<String> = match fn_name {
        Some(AttributeValue::DebugStrRef(offset)) => debug_str
            .get_str(offset)
            .and_then(|r| r.to_string().map(|s| s.to_string()))
            .ok()
            .map(|r| demangle(r.as_ref()).to_string()),
        _ => None,
    };

    // Low is a program counter address so stored in an Addr
    let low = match low {
        Some(AttributeValue::Addr(x)) => x,
        _ => 0u64,
    };
    // High is an offset from the base pc, therefore is u64 data.
    let high = match high {
        Some(AttributeValue::Udata(x)) => x,
        _ => 0u64,
    };
    if let Some(AttributeValue::DebugStrRef(offset)) = linkage {
        let name = debug_str
            .get_str(offset)
            .and_then(|r| r.to_string().map(|s| s.to_string()))
            .unwrap_or_else(|_| "".into());
        let name = demangle(name.as_ref()).to_string();
        // Simplest test is whether it's in tests namespace.
        // Rust guidelines recommend all tests are in a tests module.
        func_type = if name.contains("tests::") {
            FunctionType::Test
        } else if name.contains("__test::main") {
            FunctionType::Generated
        } else {
            FunctionType::Standard
        };
    }
    Ok((low, high, func_type, fn_name))
}

/// Finds all function entry points and returns a vector
/// This will identify definite tests, but may be prone to false negatives.
fn get_entry_points<R, Offset>(
    debug_info: &UnitHeader<R, Offset>,
    debug_abbrev: &Abbreviations,
    debug_str: &DebugStr<R>,
) -> Vec<FuncDesc>
where
    R: Reader<Offset = Offset>,
    Offset: ReaderOffset,
{
    let mut result: Vec<FuncDesc> = Vec::new();
    let mut cursor = debug_info.entries(debug_abbrev);
    // skip compilation unit root.
    let _ = cursor.next_entry();
    while let Ok(Some((_, node))) = cursor.next_dfs() {
        // Function DIE
        if node.tag() == DW_TAG_subprogram {
            if let Ok(fd) = generate_func_desc(node, debug_str) {
                result.push(fd);
            }
        }
    }
    result
}

fn get_addresses_from_program<R, Offset>(
    prog: IncompleteLineProgram<R>,
    debug_strs: &DebugStr<R>,
    entries: &[(u64, LineType, &Option<String>)],
    config: &Config,
    result: &mut HashMap<SourceLocation, Vec<TracerData>>,
) -> Result<()>
where
    R: Reader<Offset = Offset>,
    Offset: ReaderOffset,
{
    let project = config.root();
    let get_string = |x: R| x.to_string().map(|y| y.to_string()).ok();
    let (cprog, seq) = prog.sequences()?;
    for s in seq {
        let mut sm = cprog.resume_from(&s);
        while let Ok(Some((header, &ln_row))) = sm.next_row() {
            if ln_row.end_sequence() {
                break;
            }
            // If this row isn't useful move on
            if !ln_row.is_stmt() || ln_row.line().is_none() {
                continue;
            }
            if let Some(file) = ln_row.file(header) {
                let mut path = project.clone();
                if let Some(dir) = file.directory(header) {
                    if let Some(temp) = dir.string_value(debug_strs).and_then(get_string) {
                        path.push(temp);
                    }
                }
                if let Ok(p) = path.canonicalize() {
                    path = fix_unc_path(&p);
                }
                let file = file.path_name();
                let line = ln_row.line().unwrap();
                if let Some(file) = file.string_value(debug_strs).and_then(get_string) {
                    path.push(file);
                    if !path.is_file() {
                        // Not really a source file!
                        continue;
                    }
                    if is_coverable_file_path(&path, &project, &config.target_dir()) {
                        let address = ln_row.address();
                        let (desc, fn_name) = entries
                            .iter()
                            .filter(|&&(addr, _, _)| addr == address)
                            .map(|&(_, t, fn_name)| (t, fn_name.clone()))
                            .next()
                            .unwrap_or((LineType::Unknown, None));
                        let loc = SourceLocation {
                            path,
                            line: line.into(),
                        };
                        if desc != LineType::TestMain {
                            let trace = TracerData {
                                address: Some(address),
                                trace_type: desc,
                                length: 1,
                                fn_name,
                            };
                            let tracerdata = result.entry(loc).or_default();
                            tracerdata.push(trace);
                        }
                    }
                }
            }
        }
    }
    Ok(())
}

fn get_line_addresses<'data>(
    endian: RunTimeEndian,
    obj: &'data impl object::read::Object<'data>,
    analysis: &HashMap<PathBuf, LineAnalysis>,
    config: &Config,
) -> Result<TraceMap> {
    let project = config.root();
    let io_err = |e| {
        error!("IO error parsing section: {e}");
        Error::Io
    };
    trace!("Reading object sections");
    let mut result = TraceMap::new();
    trace!("Reading .debug_info");
    let debug_info = obj.section_by_name(".debug_info").ok_or(Error::Io)?;
    let debug_info = DebugInfo::new(debug_info.data().map_err(io_err)?, endian);
    trace!("Reading .debug_abbrev");
    let debug_abbrev = obj.section_by_name(".debug_abbrev").ok_or(Error::Io)?;
    let debug_abbrev = DebugAbbrev::new(debug_abbrev.data().map_err(io_err)?, endian);
    trace!("Reading .debug_str");
    let debug_strings = obj.section_by_name(".debug_str").ok_or(Error::Io)?;
    let debug_strings = DebugStr::new(debug_strings.data().map_err(io_err)?, endian);
    trace!("Reading .debug_line");
    let debug_line = obj.section_by_name(".debug_line").ok_or(Error::Io)?;
    let debug_line = DebugLine::new(debug_line.data().map_err(io_err)?, endian);

    trace!("Reading .text");
    let base_addr = obj.section_by_name(".text").ok_or(Error::Io)?;

    trace!("Reading DebugInfo units");
    let mut iter = debug_info.units();
    while let Ok(Some(cu)) = iter.next() {
        let addr_size = cu.address_size();
        let abbr = match cu.abbreviations(&debug_abbrev) {
            Ok(a) => a,
            _ => continue,
        };
        let entry_points = get_entry_points(&cu, &abbr, &debug_strings);
        let entries = entry_points
            .iter()
            .map(|(a, b, c, fn_name)| match c {
                FunctionType::Test => (*a, LineType::TestEntry(*b), fn_name),
                FunctionType::Standard => (*a, LineType::FunctionEntry(*b), fn_name),
                FunctionType::Generated => (*a, LineType::TestMain, fn_name),
            })
            .collect::<Vec<_>>();

        if let Ok(Some((_, root))) = cu.entries(&abbr).next_dfs() {
            let offset = match root.attr_value(DW_AT_stmt_list) {
                Ok(Some(AttributeValue::DebugLineRef(o))) => o,
                _ => continue,
            };
            let prog = debug_line.program(offset, addr_size, None, None)?; // Here?
            let mut temp_map: HashMap<SourceLocation, Vec<TracerData>> = HashMap::new();

            if let Err(e) =
                get_addresses_from_program(prog, &debug_strings, &entries, config, &mut temp_map)
            {
                debug!("Potential issue reading test addresses {}", e);
            } else {
                // Deduplicate addresses
                for v in temp_map.values_mut() {
                    v.dedup_by_key(|x| x.address);
                }
                let temp_map = temp_map
                    .into_iter()
                    .filter(|(ref k, _)| {
                        config.include_tests() || !k.path.starts_with(project.join("tests"))
                    })
                    .filter(|(ref k, _)| !(config.exclude_path(&k.path)))
                    .filter(|(ref k, _)| {
                        !analysis.should_ignore(k.path.as_ref(), &(k.line as usize))
                    })
                    .map(|(k, v)| {
                        let ret = analysis.normalise(k.path.as_ref(), k.line as usize);
                        let k_n = SourceLocation::from(ret);
                        (k_n, v)
                    })
                    .collect::<HashMap<SourceLocation, Vec<TracerData>>>();

                let mut tracemap = TraceMap::new();
                for (k, val) in temp_map.iter().filter(|(k, _)| k.line != 0) {
                    let rpath = config.strip_base_dir(&k.path);
                    let mut address = HashSet::new();
                    let mut fn_name = None;
                    for v in val.iter() {
                        if let Some(a) = v.address {
                            if a < base_addr.address()
                                && a >= (base_addr.address() + base_addr.size())
                            {
                                continue;
                            }
                            address.insert(a);
                            trace!(
                                "Adding trace at address 0x{:x} in {}:{}",
                                a,
                                rpath.display(),
                                k.line
                            );
                        }
                        if fn_name.is_none() && v.fn_name.is_some() {
                            fn_name = v.fn_name.clone();
                        }
                    }
                    if address.is_empty() {
                        trace!(
                            "Adding trace with no address at {}:{}",
                            rpath.display(),
                            k.line
                        );
                    }
                    tracemap.add_trace(&k.path, Trace::new(k.line, address, 1, fn_name));
                }
                result.merge(&tracemap);
            }
        }
    }

    for (file, line_analysis) in analysis.iter() {
        if config.exclude_path(file) {
            continue;
        }
        for line in &line_analysis.cover {
            let line = *line as u64;
            if !result.contains_location(file, line) && !line_analysis.should_ignore(line as usize)
            {
                let rpath = config.strip_base_dir(file);
                trace!(
                    "Adding trace for potentially uncoverable line in {}:{}",
                    rpath.display(),
                    line
                );
                result.add_trace(file, Trace::new_stub(line));
            }
        }
    }
    Ok(result)
}

#[cfg(ptrace_supported)]
fn open_symbols_file(test: &Path) -> io::Result<File> {
    File::open(test)
}

/*
#[cfg(target_os = "macos")]
fn open_symbols_file(test: &Path) -> io::Result<File> {
    let d_sym = test.with_extension("dSYM");
    File::open(&d_sym)
}
*/

#[cfg(not(ptrace_supported))]
fn open_symbols_file(_test: &Path) -> io::Result<File> {
    Err(io::Error::new(
        io::ErrorKind::Other,
        "Symbol files aren't read on non-ptrace systems",
    ))
}

pub fn generate_tracemap(
    test: &Path,
    analysis: &HashMap<PathBuf, LineAnalysis>,
    config: &Config,
) -> io::Result<TraceMap> {
    trace!("Generating traces for {}", test.display());
    let file = match open_symbols_file(test) {
        Ok(s) => object::read::ReadCache::new(s),
        Err(e) if config.engine() != TraceEngine::Llvm => return Err(e),
        _ => {
            return Ok(TraceMap::new());
        }
    };
    let obj = object::File::parse(&file)
        .map_err(|_| io::Error::new(io::ErrorKind::InvalidData, "Unable to parse binary"))?;
    let endian = if obj.is_little_endian() {
        RunTimeEndian::Little
    } else {
        RunTimeEndian::Big
    };
    get_line_addresses(endian, &obj, analysis, config)
        .map_err(|e| {
            // They may be running with a stripped binary or doing something weird
            error!("Error parsing debug information from binary: {}", e);
            warn!("Stripping symbol information can prevent tarpaulin from working. If you want to do this pass `--engine=llvm`");
            io::Error::new(io::ErrorKind::InvalidData, "Error while parsing binary or DWARF info.")
        })
}

1	use crate::config::{types::TraceEngine, Config};
2	use crate::path_utils::{fix_unc_path, is_coverable_file_path};
3	use crate::source_analysis::*;
4	use crate::traces::*;
5	use gimli::*;
6	use object::{read::ObjectSection, Object};
7	use rustc_demangle::demangle;
8	use std::collections::{HashMap, HashSet};
9	use std::fs::File;
10	use std::io;
11	use std::path::{Path, PathBuf};
12	use tracing::{debug, error, trace, warn};
13
14	/// Describes a function as `low_pc`, `high_pc` and bool representing `is_test`.
15	type FuncDesc = (u64, u64, FunctionType, Option<String>);
16
17	#[derive(Debug, Clone, Copy, PartialEq)]
18	enum FunctionType {
19	Generated,
20	Test,
21	Standard,
22	}
23
24	#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd)]
25	pub enum LineType {
26	/// Generated test main. Shouldn't be traced.
27	TestMain,
28	/// Entry of function known to be a test
29	TestEntry(u64),
30	/// Entry of function. May or may not be test
31	FunctionEntry(u64),
32	/// Standard statement
33	Statement,
34	/// Condition
35	Condition,
36	/// Unknown type
37	Unknown,
38	/// Unused meta-code
39	UnusedGeneric,
40	}
41
42	#[derive(Debug, Clone, PartialEq, Eq, Hash)]
43	struct SourceLocation {
44	pub path: PathBuf,
45	pub line: u64,
46	}
47
48	impl From<(PathBuf, usize)> for SourceLocation {
49	fn from(other: (PathBuf, usize)) -> Self {	1,130✔
50	Self {
51	path: other.0,	1,130✔
52	line: other.1 as u64,	1,130✔
53	}
54	}
55	}
56
57	#[derive(Debug, Clone)]
58	pub struct TracerData {
59	/// Currently used to find generated __test::main and remove from coverage,
60	/// may have uses in future for finding conditions etc
61	pub trace_type: LineType,
62	/// Start address of the line
63	pub address: Option<u64>,
64	/// Length of the instruction
65	pub length: u64,
66	/// Function name
67	pub fn_name: Option<String>,
68	}
69
70	fn generate_func_desc<R, Offset>(	3,597,460✔
71	die: &DebuggingInformationEntry<R, Offset>,
72	debug_str: &DebugStr<R>,
73	) -> Result<FuncDesc>
74	where
75	R: Reader<Offset = Offset>,
76	Offset: ReaderOffset,
77	{
78	let mut func_type = FunctionType::Standard;	3,597,460✔
79	let low = die.attr_value(DW_AT_low_pc)?;	7,194,920✔
80	let high = die.attr_value(DW_AT_high_pc)?;	3,597,460✔
81	let linkage = die.attr_value(DW_AT_linkage_name)?;	3,597,460✔
82	let fn_name = die.attr_value(DW_AT_name)?;	3,597,460✔
83
84	let fn_name: Option<String> = match fn_name {	6,985,426✔
85	Some(AttributeValue::DebugStrRef(offset)) => debug_str	3,387,966✔
86	.get_str(offset)	3,387,966✔
87	.and_then(\|r\| r.to_string().map(\|s\| s.to_string()))	13,551,864✔
88	.ok()
89	.map(\|r\| demangle(r.as_ref()).to_string()),	3,387,966✔
90	_ => None,	209,494✔
91	};
92
93	// Low is a program counter address so stored in an Addr
94	let low = match low {	4,143,974✔
95	Some(AttributeValue::Addr(x)) => x,	546,514✔
96	_ => 0u64,	3,050,946✔
97	};
98	// High is an offset from the base pc, therefore is u64 data.
99	let high = match high {	4,143,974✔
100	Some(AttributeValue::Udata(x)) => x,	546,514✔
101	_ => 0u64,	3,050,946✔
102	};
103	if let Some(AttributeValue::DebugStrRef(offset)) = linkage {	3,336,080✔
104	let name = debug_str	3,336,080✔
105	.get_str(offset)	3,336,080✔
106	.and_then(\|r\| r.to_string().map(\|s\| s.to_string()))	16,680,400✔
107	.unwrap_or_else(\|_\| "".into());	6,672,160✔
108	let name = demangle(name.as_ref()).to_string();	3,336,080✔
109	// Simplest test is whether it's in tests namespace.
110	// Rust guidelines recommend all tests are in a tests module.
111	func_type = if name.contains("tests::") {	3,336,080✔
112	FunctionType::Test	8,772✔
113	} else if name.contains("__test::main") {	3,327,308✔
114	FunctionType::Generated	×
115	} else {
116	FunctionType::Standard	3,327,308✔
117	};
118	}
119	Ok((low, high, func_type, fn_name))	3,597,460✔
120	}
121
122	/// Finds all function entry points and returns a vector
123	/// This will identify definite tests, but may be prone to false negatives.
124	fn get_entry_points<R, Offset>(	4,808✔
125	debug_info: &UnitHeader<R, Offset>,
126	debug_abbrev: &Abbreviations,
127	debug_str: &DebugStr<R>,
128	) -> Vec<FuncDesc>
129	where
130	R: Reader<Offset = Offset>,
131	Offset: ReaderOffset,
132	{
133	let mut result: Vec<FuncDesc> = Vec::new();	4,808✔
134	let mut cursor = debug_info.entries(debug_abbrev);	4,808✔
135	// skip compilation unit root.
136	let _ = cursor.next_entry();	4,808✔
137	while let Ok(Some((_, node))) = cursor.next_dfs() {	37,857,744✔
138	// Function DIE
139	if node.tag() == DW_TAG_subprogram {	18,926,468✔
140	if let Ok(fd) = generate_func_desc(node, debug_str) {	10,792,380✔
141	result.push(fd);	3,597,460✔
142	}
143	}
144	}
145	result	4,808✔
146	}
147
148	fn get_addresses_from_program<R, Offset>(	4,808✔
149	prog: IncompleteLineProgram<R>,
150	debug_strs: &DebugStr<R>,
151	entries: &[(u64, LineType, &Option<String>)],
152	config: &Config,
153	result: &mut HashMap<SourceLocation, Vec<TracerData>>,
154	) -> Result<()>
155	where
156	R: Reader<Offset = Offset>,
157	Offset: ReaderOffset,
158	{
159	let project = config.root();	4,808✔
160	let get_string = \|x: R\| x.to_string().map(\|y\| y.to_string()).ok();	69,022,268✔
161	let (cprog, seq) = prog.sequences()?;	9,616✔
162	for s in seq {	1,097,836✔
163	let mut sm = cprog.resume_from(&s);	×
164	while let Ok(Some((header, &ln_row))) = sm.next_row() {	32,710,320✔
165	if ln_row.end_sequence() {	16,355,160✔
166	break;	546,514✔
167	}
168	// If this row isn't useful move on
169	if !ln_row.is_stmt() \|\| ln_row.line().is_none() {	27,312,150✔
170	continue;	4,305,490✔
171	}
172	if let Some(file) = ln_row.file(header) {	11,503,156✔
173	let mut path = project.clone();	×
174	if let Some(dir) = file.directory(header) {	11,502,664✔
175	if let Some(temp) = dir.string_value(debug_strs).and_then(get_string) {	11,502,664✔
176	path.push(temp);	×
177	}
178	}
179	if let Ok(p) = path.canonicalize() {	11,943,410✔
180	path = fix_unc_path(&p);	×
181	}
182	let file = file.path_name();	11,503,156✔
183	let line = ln_row.line().unwrap();	11,503,156✔
184	if let Some(file) = file.string_value(debug_strs).and_then(get_string) {	11,503,156✔
185	path.push(file);	×
186	if !path.is_file() {	×
187	// Not really a source file!
188	continue;	11,272,838✔
189	}
190	if is_coverable_file_path(&path, &project, &config.target_dir()) {	230,318✔
191	let address = ln_row.address();	36,086✔
192	let (desc, fn_name) = entries	36,086✔
193	.iter()
194	.filter(\|&&(addr, _, _)\| addr == address)	20,530,564✔
195	.map(\|&(_, t, fn_name)\| (t, fn_name.clone()))	3,776✔
196	.next()
197	.unwrap_or((LineType::Unknown, None));	×
198	let loc = SourceLocation {
199	path,
200	line: line.into(),	×
201	};
202	if desc != LineType::TestMain {	36,086✔
203	let trace = TracerData {
204	address: Some(address),	36,086✔
205	trace_type: desc,
206	length: 1,
207	fn_name,
208	};
209	let tracerdata = result.entry(loc).or_default();	36,086✔
210	tracerdata.push(trace);	36,086✔
211	}
212	}
213	}
214	}
215	}
216	}
217	Ok(())	4,808✔
218	}
219
220	fn get_line_addresses<'data>(	188✔
221	endian: RunTimeEndian,
222	obj: &'data impl object::read::Object<'data>,
223	analysis: &HashMap<PathBuf, LineAnalysis>,
224	config: &Config,
225	) -> Result<TraceMap> {
226	let project = config.root();	188✔
227	let io_err = \|e\| {	188✔
228	error!("IO error parsing section: {e}");	×
229	Error::Io	×
230	};
231	trace!("Reading object sections");	376✔
232	let mut result = TraceMap::new();	188✔
233	trace!("Reading .debug_info");	376✔
234	let debug_info = obj.section_by_name(".debug_info").ok_or(Error::Io)?;	376✔
235	let debug_info = DebugInfo::new(debug_info.data().map_err(io_err)?, endian);	188✔
236	trace!("Reading .debug_abbrev");	188✔
237	let debug_abbrev = obj.section_by_name(".debug_abbrev").ok_or(Error::Io)?;	376✔
238	let debug_abbrev = DebugAbbrev::new(debug_abbrev.data().map_err(io_err)?, endian);	188✔
239	trace!("Reading .debug_str");	188✔
240	let debug_strings = obj.section_by_name(".debug_str").ok_or(Error::Io)?;	376✔
241	let debug_strings = DebugStr::new(debug_strings.data().map_err(io_err)?, endian);	188✔
242	trace!("Reading .debug_line");	188✔
243	let debug_line = obj.section_by_name(".debug_line").ok_or(Error::Io)?;	376✔
244	let debug_line = DebugLine::new(debug_line.data().map_err(io_err)?, endian);	188✔
245
246	trace!("Reading .text");	188✔
247	let base_addr = obj.section_by_name(".text").ok_or(Error::Io)?;	376✔
248
249	trace!("Reading DebugInfo units");	188✔
250	let mut iter = debug_info.units();	188✔
251	while let Ok(Some(cu)) = iter.next() {	9,804✔
252	let addr_size = cu.address_size();	4,808✔
253	let abbr = match cu.abbreviations(&debug_abbrev) {	9,616✔
254	Ok(a) => a,	×
255	_ => continue,	×
256	};
257	let entry_points = get_entry_points(&cu, &abbr, &debug_strings);	×
258	let entries = entry_points	×
259	.iter()
260	.map(\|(a, b, c, fn_name)\| match c {	3,597,460✔
261	FunctionType::Test => (a, LineType::TestEntry(b), fn_name),	8,772✔
262	FunctionType::Standard => (a, LineType::FunctionEntry(b), fn_name),	3,588,688✔
263	FunctionType::Generated => (*a, LineType::TestMain, fn_name),	×
264	})
265	.collect::<Vec<_>>();
266
267	if let Ok(Some((_, root))) = cu.entries(&abbr).next_dfs() {	4,808✔
268	let offset = match root.attr_value(DW_AT_stmt_list) {	9,616✔
269	Ok(Some(AttributeValue::DebugLineRef(o))) => o,	4,808✔
270	_ => continue,	×
271	};
272	let prog = debug_line.program(offset, addr_size, None, None)?; // Here?	9,616✔
273	let mut temp_map: HashMap<SourceLocation, Vec<TracerData>> = HashMap::new();	×
274
275	if let Err(e) =	×
276	get_addresses_from_program(prog, &debug_strings, &entries, config, &mut temp_map)	×
277	{
278	debug!("Potential issue reading test addresses {}", e);	×
279	} else {
280	// Deduplicate addresses
281	for v in temp_map.values_mut() {	43,216✔
282	v.dedup_by_key(\|x\| x.address);	72,172✔
283	}
284	let temp_map = temp_map	4,808✔
285	.into_iter()
286	.filter(\|(ref k, _)\| {	24,012✔
287	config.include_tests() \|\| !k.path.starts_with(project.join("tests"))	28,286✔
288	})
289	.filter(\|(ref k, _)\| !(config.exclude_path(&k.path)))	28,708✔
290	.filter(\|(ref k, _)\| {	23,900✔
291	!analysis.should_ignore(k.path.as_ref(), &(k.line as usize))	19,092✔
292	})
293	.map(\|(k, v)\| {	5,938✔
294	let ret = analysis.normalise(k.path.as_ref(), k.line as usize);	1,130✔
295	let k_n = SourceLocation::from(ret);	1,130✔
296	(k_n, v)	1,130✔
297	})
298	.collect::<HashMap<SourceLocation, Vec<TracerData>>>();
299
300	let mut tracemap = TraceMap::new();	4,808✔
301	for (k, val) in temp_map.iter().filter(\|(k, _)\| k.line != 0) {	11,876✔
302	let rpath = config.strip_base_dir(&k.path);	1,130✔
303	let mut address = HashSet::new();	1,130✔
304	let mut fn_name = None;	1,130✔
305	for v in val.iter() {	3,178✔
306	if let Some(a) = v.address {	4,096✔
307	if a < base_addr.address()	×
308	&& a >= (base_addr.address() + base_addr.size())	×
309	{
310	continue;	×
311	}
312	address.insert(a);	2,048✔
313	trace!(	2,048✔
314	"Adding trace at address 0x{:x} in {}:{}",	2,048✔
315	a,	2,048✔
316	rpath.display(),	2,048✔
317	k.line	×
318	);
319	}
320	if fn_name.is_none() && v.fn_name.is_some() {	4,064✔
321	fn_name = v.fn_name.clone();	326✔
322	}
323	}
324	if address.is_empty() {	1,130✔
325	trace!(	×
UNCOV 326	"Adding trace with no address at {}:{}",	×
327	rpath.display(),	×
328	k.line	×
329	);
330	}
331	tracemap.add_trace(&k.path, Trace::new(k.line, address, 1, fn_name));	1,130✔
332	}
333	result.merge(&tracemap);	4,808✔
334	}
335	}
336	}
337
338	for (file, line_analysis) in analysis.iter() {	572✔
339	if config.exclude_path(file) {	384✔
340	continue;	×
341	}
342	for line in &line_analysis.cover {	412✔
343	let line = *line as u64;	×
344	if !result.contains_location(file, line) && !line_analysis.should_ignore(line as usize)	×
345	{
346	let rpath = config.strip_base_dir(file);	×
347	trace!(	×
UNCOV 348	"Adding trace for potentially uncoverable line in {}:{}",	×
349	rpath.display(),	×
350	line	×
351	);
352	result.add_trace(file, Trace::new_stub(line));	×
353	}
354	}
355	}
356	Ok(result)	188✔
357	}
358
359	#[cfg(ptrace_supported)]
360	fn open_symbols_file(test: &Path) -> io::Result<File> {	188✔
361	File::open(test)	188✔
362	}
363
364	/*
365	#[cfg(target_os = "macos")]
366	fn open_symbols_file(test: &Path) -> io::Result<File> {
367	let d_sym = test.with_extension("dSYM");
368	File::open(&d_sym)
369	}
370	*/
371
372	#[cfg(not(ptrace_supported))]
373	fn open_symbols_file(_test: &Path) -> io::Result<File> {
374	Err(io::Error::new(
375	io::ErrorKind::Other,
376	"Symbol files aren't read on non-ptrace systems",
377	))
378	}
379
380	pub fn generate_tracemap(	188✔
381	test: &Path,
382	analysis: &HashMap<PathBuf, LineAnalysis>,
383	config: &Config,
384	) -> io::Result<TraceMap> {
385	trace!("Generating traces for {}", test.display());	376✔
386	let file = match open_symbols_file(test) {	376✔
387	Ok(s) => object::read::ReadCache::new(s),
388	Err(e) if config.engine() != TraceEngine::Llvm => return Err(e),	×
389	_ => {
390	return Ok(TraceMap::new());	×
391	}
392	};
393	let obj = object::File::parse(&file)	188✔
394	.map_err(\|_\| io::Error::new(io::ErrorKind::InvalidData, "Unable to parse binary"))?;	×
395	let endian = if obj.is_little_endian() {	188✔
396	RunTimeEndian::Little	188✔
397	} else {
398	RunTimeEndian::Big	×
399	};
400	get_line_addresses(endian, &obj, analysis, config)
401	.map_err(\|e\| {	×
402	// They may be running with a stripped binary or doing something weird
403	error!("Error parsing debug information from binary: {}", e);	×
404	warn!("Stripping symbol information can prevent tarpaulin from working. If you want to do this pass `--engine=llvm`");	×
405	io::Error::new(io::ErrorKind::InvalidData, "Error while parsing binary or DWARF info.")	×
406	})
407	}

xd009642 / tarpaulin / #483

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