pub const CompileUnit = struct {
offset: u64,
size: u64,
version: u16,
format: Format,
addr_size_bytes: u8,
abbrev_offset: u64,
die: Die,
pc_range: ?PcRange,
str_offsets_base: usize,
addr_base: usize,
rnglists_base: usize,
loclists_base: usize,
frame_base: ?*const FormValue,
src_loc_cache: ?SrcLocCache,
pub const SrcLocCache = struct {
line_table: LineTable,
directories: []const FileEntry,
files: []FileEntry,
version: u16,
pub const LineTable = std.array_hash_map.Auto(u64, LineEntry);
pub const LineEntry = struct {
line: u32,
column: u32,
/// Offset by 1 depending on whether Dwarf version is >= 5.
file: u32,
pub const invalid: LineEntry = .{
.line = undefined,
.column = undefined,
.file = std.math.maxInt(u32),
};
pub fn isInvalid(le: LineEntry) bool {
return le.file == invalid.file;
}
};
pub fn findSource(slc: *const SrcLocCache, address: u64) !LineEntry {
const index = std.sort.upperBound(u64, slc.line_table.keys(), address, struct {
fn order(context: u64, item: u64) std.math.Order {
return std.math.order(context, item);
}
}.order);
if (index == 0) return missing();
return slc.line_table.values()[index - 1];
}
};
}
