1 files changed, 431 insertions, 0 deletions
diff --git a/vendor/gimli-0.26.2/tests/parse_self.rs b/vendor/gimli-0.26.2/tests/parse_self.rs
new file mode 100755
index 000000000..fb316314e
--- /dev/null
+++ b/vendor/gimli-0.26.2/tests/parse_self.rs
@@ -0,0 +1,431 @@
+#![cfg(all(feature = "read", feature = "std", feature = "endian-reader"))]
+
+use gimli::{
+    AttributeValue, DebugAbbrev, DebugAddr, DebugAddrBase, DebugAranges, DebugInfo, DebugLine,
+    DebugLoc, DebugLocLists, DebugPubNames, DebugPubTypes, DebugRanges, DebugRngLists, DebugStr,
+    Encoding, EndianSlice, Expression, LittleEndian, LocationLists, Operation, RangeLists,
+    RangeListsOffset, Reader,
+};
+use std::collections::hash_map::HashMap;
+use std::env;
+use std::fs::File;
+use std::io::Read;
+use std::path::PathBuf;
+use std::rc::Rc;
+
+fn read_section(section: &str) -> Vec<u8> {
+    let mut path = PathBuf::new();
+    if let Ok(dir) = env::var("CARGO_MANIFEST_DIR") {
+        path.push(dir);
+    }
+    path.push("fixtures/self");
+    path.push(section);
+
+    println!("Reading section \"{}\" at path {:?}", section, path);
+    assert!(path.is_file());
+    let mut file = File::open(path).unwrap();
+
+    let mut buf = Vec::new();
+    file.read_to_end(&mut buf).unwrap();
+    buf
+}
+
+fn parse_expression<R: Reader>(expr: Expression<R>, encoding: Encoding) {
+    let mut pc = expr.0.clone();
+    while !pc.is_empty() {
+        Operation::parse(&mut pc, encoding).expect("Should parse operation");
+    }
+
+    // Also attempt to evaluate some of it.
+    let mut eval = expr.evaluation(encoding);
+    eval.set_initial_value(0);
+    eval.evaluate().expect("Should evaluate expression");
+}
+
+fn impl_parse_self_debug_info<R: gimli::Reader>(
+    debug_info: &DebugInfo<R>,
+    debug_abbrev: &DebugAbbrev<R>,
+) {
+    let mut iter = debug_info.units();
+    while let Some(unit) = iter.next().expect("Should parse compilation unit") {
+        let abbrevs = unit
+            .abbreviations(&debug_abbrev)
+            .expect("Should parse abbreviations");
+
+        let mut cursor = unit.entries(&abbrevs);
+
+        while cursor.next_dfs().expect("Should parse next dfs").is_some() {
+            let entry = cursor.current().expect("Should have a current entry");
+
+            let mut attrs = entry.attrs();
+            while let Some(attr) = attrs.next().expect("Should parse entry's attribute") {
+                if let AttributeValue::Exprloc(expression) = attr.value() {
+                    parse_expression(expression, unit.encoding());
+                }
+            }
+        }
+    }
+}
+
+#[test]
+fn test_parse_self_debug_info() {
+    let debug_info = read_section("debug_info");
+    let debug_info = DebugInfo::new(&debug_info, LittleEndian);
+
+    let debug_abbrev = read_section("debug_abbrev");
+    let debug_abbrev = DebugAbbrev::new(&debug_abbrev, LittleEndian);
+
+    impl_parse_self_debug_info(&debug_info, &debug_abbrev);
+}
+
+#[test]
+fn test_parse_self_debug_info_with_endian_rc_slice() {
+    let debug_info = read_section("debug_info");
+    let debug_info = Rc::from(&debug_info[..]);
+    let debug_info = gimli::EndianRcSlice::new(debug_info, LittleEndian);
+    let debug_info = DebugInfo::from(debug_info);
+
+    let debug_abbrev = read_section("debug_abbrev");
+    let debug_abbrev = Rc::from(&debug_abbrev[..]);
+    let debug_abbrev = gimli::EndianRcSlice::new(debug_abbrev, LittleEndian);
+    let debug_abbrev = DebugAbbrev::from(debug_abbrev);
+
+    impl_parse_self_debug_info(&debug_info, &debug_abbrev);
+}
+
+#[test]
+fn test_parse_self_debug_line() {
+    let debug_info = read_section("debug_info");
+    let debug_info = DebugInfo::new(&debug_info, LittleEndian);
+
+    let debug_abbrev = read_section("debug_abbrev");
+    let debug_abbrev = DebugAbbrev::new(&debug_abbrev, LittleEndian);
+
+    let debug_line = read_section("debug_line");
+    let debug_line = DebugLine::new(&debug_line, LittleEndian);
+
+    let debug_str = read_section("debug_str");
+    let debug_str = DebugStr::new(&debug_str, LittleEndian);
+
+    let mut iter = debug_info.units();
+    while let Some(unit) = iter.next().expect("Should parse compilation unit") {
+        let abbrevs = unit
+            .abbreviations(&debug_abbrev)
+            .expect("Should parse abbreviations");
+
+        let mut cursor = unit.entries(&abbrevs);
+        cursor.next_dfs().expect("Should parse next dfs");
+
+        let unit_entry = cursor.current().expect("Should have a root entry");
+
+        let comp_dir = unit_entry
+            .attr_value(gimli::DW_AT_comp_dir)
+            .expect("Should parse comp_dir attribute")
+            .and_then(|val| val.string_value(&debug_str));
+        let comp_name = unit_entry
+            .attr_value(gimli::DW_AT_name)
+            .expect("Should parse name attribute")
+            .and_then(|val| val.string_value(&debug_str));
+
+        if let Some(AttributeValue::DebugLineRef(offset)) = unit_entry
+            .attr_value(gimli::DW_AT_stmt_list)
+            .expect("Should parse stmt_list")
+        {
+            let program = debug_line
+                .program(offset, unit.address_size(), comp_dir, comp_name)
+                .expect("should parse line number program header");
+
+            let mut results = Vec::new();
+            let mut rows = program.rows();
+            while let Some((_, row)) = rows
+                .next_row()
+                .expect("Should parse and execute all rows in the line number program")
+            {
+                results.push(*row);
+            }
+            results.reverse();
+
+            let program = debug_line
+                .program(offset, unit.address_size(), comp_dir, comp_name)
+                .expect("should parse line number program header");
+            let (program, sequences) = program
+                .sequences()
+                .expect("should parse and execute the entire line number program");
+            assert!(!sequences.is_empty()); // Should be at least one sequence.
+            for sequence in sequences {
+                let mut rows = program.resume_from(&sequence);
+                while let Some((_, row)) = rows
+                    .next_row()
+                    .expect("Should parse and execute all rows after resuming")
+                {
+                    let other_row = results.pop().unwrap();
+                    assert!(row.address() >= sequence.start);
+                    assert!(row.address() <= sequence.end);
+                    assert_eq!(row.address(), other_row.address());
+                    assert_eq!(row.line(), other_row.line());
+                }
+            }
+            assert!(results.is_empty());
+        }
+    }
+}
+
+#[test]
+fn test_parse_self_debug_loc() {
+    let debug_info = read_section("debug_info");
+    let debug_info = DebugInfo::new(&debug_info, LittleEndian);
+
+    let debug_abbrev = read_section("debug_abbrev");
+    let debug_abbrev = DebugAbbrev::new(&debug_abbrev, LittleEndian);
+
+    let debug_addr = DebugAddr::from(EndianSlice::new(&[], LittleEndian));
+    let debug_addr_base = DebugAddrBase(0);
+
+    let debug_loc = read_section("debug_loc");
+    let debug_loc = DebugLoc::new(&debug_loc, LittleEndian);
+    let debug_loclists = DebugLocLists::new(&[], LittleEndian);
+    let loclists = LocationLists::new(debug_loc, debug_loclists);
+
+    let mut iter = debug_info.units();
+    while let Some(unit) = iter.next().expect("Should parse compilation unit") {
+        let abbrevs = unit
+            .abbreviations(&debug_abbrev)
+            .expect("Should parse abbreviations");
+
+        let mut cursor = unit.entries(&abbrevs);
+        cursor.next_dfs().expect("Should parse next dfs");
+
+        let mut low_pc = 0;
+
+        {
+            let unit_entry = cursor.current().expect("Should have a root entry");
+            let low_pc_attr = unit_entry
+                .attr_value(gimli::DW_AT_low_pc)
+                .expect("Should parse low_pc");
+            if let Some(gimli::AttributeValue::Addr(address)) = low_pc_attr {
+                low_pc = address;
+            }
+        }
+
+        while cursor.next_dfs().expect("Should parse next dfs").is_some() {
+            let entry = cursor.current().expect("Should have a current entry");
+            let mut attrs = entry.attrs();
+            while let Some(attr) = attrs.next().expect("Should parse entry's attribute") {
+                if let AttributeValue::LocationListsRef(offset) = attr.value() {
+                    let mut locs = loclists
+                        .locations(
+                            offset,
+                            unit.encoding(),
+                            low_pc,
+                            &debug_addr,
+                            debug_addr_base,
+                        )
+                        .expect("Should parse locations OK");
+                    while let Some(loc) = locs.next().expect("Should parse next location") {
+                        assert!(loc.range.begin <= loc.range.end);
+                        parse_expression(loc.data, unit.encoding());
+                    }
+                }
+            }
+        }
+    }
+}
+
+#[test]
+fn test_parse_self_debug_ranges() {
+    let debug_info = read_section("debug_info");
+    let debug_info = DebugInfo::new(&debug_info, LittleEndian);
+
+    let debug_abbrev = read_section("debug_abbrev");
+    let debug_abbrev = DebugAbbrev::new(&debug_abbrev, LittleEndian);
+
+    let debug_addr = DebugAddr::from(EndianSlice::new(&[], LittleEndian));
+    let debug_addr_base = DebugAddrBase(0);
+
+    let debug_ranges = read_section("debug_ranges");
+    let debug_ranges = DebugRanges::new(&debug_ranges, LittleEndian);
+    let debug_rnglists = DebugRngLists::new(&[], LittleEndian);
+    let rnglists = RangeLists::new(debug_ranges, debug_rnglists);
+
+    let mut iter = debug_info.units();
+    while let Some(unit) = iter.next().expect("Should parse compilation unit") {
+        let abbrevs = unit
+            .abbreviations(&debug_abbrev)
+            .expect("Should parse abbreviations");
+
+        let mut cursor = unit.entries(&abbrevs);
+        cursor.next_dfs().expect("Should parse next dfs");
+
+        let mut low_pc = 0;
+
+        {
+            let unit_entry = cursor.current().expect("Should have a root entry");
+            let low_pc_attr = unit_entry
+                .attr_value(gimli::DW_AT_low_pc)
+                .expect("Should parse low_pc");
+            if let Some(gimli::AttributeValue::Addr(address)) = low_pc_attr {
+                low_pc = address;
+            }
+        }
+
+        while cursor.next_dfs().expect("Should parse next dfs").is_some() {
+            let entry = cursor.current().expect("Should have a current entry");
+            let mut attrs = entry.attrs();
+            while let Some(attr) = attrs.next().expect("Should parse entry's attribute") {
+                if let AttributeValue::RangeListsRef(offset) = attr.value() {
+                    let mut ranges = rnglists
+                        .ranges(
+                            RangeListsOffset(offset.0),
+                            unit.encoding(),
+                            low_pc,
+                            &debug_addr,
+                            debug_addr_base,
+                        )
+                        .expect("Should parse ranges OK");
+                    while let Some(range) = ranges.next().expect("Should parse next range") {
+                        assert!(range.begin <= range.end);
+                    }
+                }
+            }
+        }
+    }
+}
+
+#[test]
+fn test_parse_self_debug_aranges() {
+    let debug_aranges = read_section("debug_aranges");
+    let debug_aranges = DebugAranges::new(&debug_aranges, LittleEndian);
+
+    let mut headers = debug_aranges.headers();
+    while let Some(header) = headers.next().expect("Should parse arange header OK") {
+        let mut entries = header.entries();
+        while let Some(_) = entries.next().expect("Should parse arange entry OK") {
+            // Not really anything else we can check right now.
+        }
+    }
+}
+
+#[test]
+fn test_parse_self_debug_pubnames() {
+    let debug_info = read_section("debug_info");
+    let debug_info = DebugInfo::new(&debug_info, LittleEndian);
+
+    let debug_abbrev = read_section("debug_abbrev");
+    let debug_abbrev = DebugAbbrev::new(&debug_abbrev, LittleEndian);
+
+    let debug_pubnames = read_section("debug_pubnames");
+    let debug_pubnames = DebugPubNames::new(&debug_pubnames, LittleEndian);
+
+    let mut units = HashMap::new();
+    let mut abbrevs = HashMap::new();
+    let mut pubnames = debug_pubnames.items();
+    while let Some(entry) = pubnames.next().expect("Should parse pubname OK") {
+        let unit_offset = entry.unit_header_offset();
+        let unit = units.entry(unit_offset).or_insert_with(|| {
+            debug_info
+                .header_from_offset(unit_offset)
+                .expect("Should parse unit header OK")
+        });
+        let abbrev_offset = unit.debug_abbrev_offset();
+        let abbrevs = abbrevs.entry(abbrev_offset).or_insert_with(|| {
+            debug_abbrev
+                .abbreviations(abbrev_offset)
+                .expect("Should parse abbreviations OK")
+        });
+        let mut cursor = unit
+            .entries_at_offset(abbrevs, entry.die_offset())
+            .expect("DIE offset should be valid");
+        assert!(cursor.next_dfs().expect("Should parse DIE").is_some());
+    }
+}
+
+#[test]
+fn test_parse_self_debug_pubtypes() {
+    let debug_info = read_section("debug_info");
+    let debug_info = DebugInfo::new(&debug_info, LittleEndian);
+
+    let debug_abbrev = read_section("debug_abbrev");
+    let debug_abbrev = DebugAbbrev::new(&debug_abbrev, LittleEndian);
+
+    let debug_pubtypes = read_section("debug_pubtypes");
+    let debug_pubtypes = DebugPubTypes::new(&debug_pubtypes, LittleEndian);
+
+    let mut units = HashMap::new();
+    let mut abbrevs = HashMap::new();
+    let mut pubtypes = debug_pubtypes.items();
+    while let Some(entry) = pubtypes.next().expect("Should parse pubtype OK") {
+        let unit_offset = entry.unit_header_offset();
+        let unit = units.entry(unit_offset).or_insert_with(|| {
+            debug_info
+                .header_from_offset(unit_offset)
+                .expect("Should parse unit header OK")
+        });
+        let abbrev_offset = unit.debug_abbrev_offset();
+        let abbrevs = abbrevs.entry(abbrev_offset).or_insert_with(|| {
+            debug_abbrev
+                .abbreviations(abbrev_offset)
+                .expect("Should parse abbreviations OK")
+        });
+        let mut cursor = unit
+            .entries_at_offset(abbrevs, entry.die_offset())
+            .expect("DIE offset should be valid");
+        assert!(cursor.next_dfs().expect("Should parse DIE").is_some());
+    }
+}
+
+#[test]
+fn test_parse_self_eh_frame() {
+    use gimli::{BaseAddresses, CieOrFde, EhFrame, UnwindSection};
+
+    let eh_frame = read_section("eh_frame");
+    let mut eh_frame = EhFrame::new(&eh_frame, LittleEndian);
+    // The `.eh_frame` fixture data was created on a 64-bit machine.
+    eh_frame.set_address_size(8);
+
+    let bases = BaseAddresses::default()
+        .set_eh_frame(0)
+        .set_text(0)
+        .set_got(0);
+    let mut entries = eh_frame.entries(&bases);
+    while let Some(entry) = entries.next().expect("Should parse CFI entry OK") {
+        match entry {
+            CieOrFde::Cie(cie) => {
+                let mut instrs = cie.instructions(&eh_frame, &bases);
+                while let Some(_) = instrs.next().expect("Can parse next CFI instruction OK") {
+                    // TODO FITZGEN
+                }
+            }
+            CieOrFde::Fde(partial) => {
+                let fde = partial
+                    .parse(UnwindSection::cie_from_offset)
+                    .expect("Should be able to get CIE for FDE");
+
+                let mut instrs = fde.instructions(&eh_frame, &bases);
+                while let Some(_) = instrs.next().expect("Can parse next CFI instruction OK") {
+                    // TODO FITZGEN
+                }
+            }
+        }
+    }
+}
+
+#[test]
+fn test_parse_self_eh_frame_hdr() {
+    use gimli::{BaseAddresses, EhFrameHdr};
+
+    let eh_frame_hdr = read_section("eh_frame_hdr");
+    let eh_frame_hdr = EhFrameHdr::new(&eh_frame_hdr, LittleEndian);
+
+    let bases = BaseAddresses::default()
+        .set_eh_frame(0)
+        .set_eh_frame_hdr(0)
+        .set_text(0)
+        .set_got(0);
+
+    // `.eh_frame_hdr` was generated on a 64 bit machine.
+    let address_size = 8;
+
+    let _parsed_header = eh_frame_hdr
+        .parse(&bases, address_size)
+        .expect("we can parse the `.eh_frame_hdr` section OK");
+}