class Track_relocs;
struct LineStateMachine;
+// We can't do better than to keep the offsets in a sorted vector.
+// Here, offset is the key, and file_num/line_num is the value.
+struct Offset_to_lineno_entry
+{
+ off_t offset;
+ int header_num; // which file-list to use (i.e. which .o file are we in)
+ int file_num; // a pointer into files_
+ int line_num; // the line number in the source file
+ // Offsets are unique within a section, so that's a sufficient sort key.
+ bool operator<(const Offset_to_lineno_entry& that) const
+ { return this->offset < that.offset; }
+};
+
// This class is used to read the line information from the debugging
// section of an object file.
{
public:
// Initializes a .debug_line reader for a given object file.
- Sized_dwarf_line_info(Object* object);
+ // If SHNDX is specified and non-negative, only read the debug
+ // information that pertains to the specified section.
+ Sized_dwarf_line_info(Object* object, off_t read_shndx = -1U);
private:
std::string
do_addr2line(unsigned int shndx, off_t offset);
// Start processing line info, and populates the offset_map_.
+ // If SHNDX is non-negative, only store debug information that
+ // pertains to the specified section.
void
- read_line_mappings();
+ read_line_mappings(off_t shndx);
// Reads the relocation section associated with .debug_line and
// stores relocation information in reloc_map_.
const unsigned char*
read_header_tables(const unsigned char* lineptr);
- // Reads the DWARF2/3 line information.
+ // Reads the DWARF2/3 line information. If shndx is non-negative,
+ // discard all line information that doesn't pertain to the given
+ // section.
const unsigned char*
- read_lines(const unsigned char* lineptr);
+ read_lines(const unsigned char* lineptr, off_t shndx);
// Process a single line info opcode at START using the state
// machine at LSM. Return true if we should define a line using the
// This is used to figure out what section to apply a relocation to.
const unsigned char* symtab_buffer_;
- off_t symtab_buffer_size_;
+ section_size_type symtab_buffer_size_;
// Holds the directories and files as we see them. We have an array
// of directory-lists, one for each .o file we're reading (usually
Reloc_map;
Reloc_map reloc_map_;
- // We can't do better than to keep the offsets in a sorted vector.
- // Here, offset is the key, and file_num/line_num is the value.
- struct Offset_to_lineno_entry
- {
- off_t offset;
- int header_num; // which file-list to use (i.e. which .o file are we in)
- int file_num; // a pointer into files_
- int line_num; // the line number in the source file
- // Offsets are unique within a section, so that's a sufficient sort key.
- bool operator<(const Offset_to_lineno_entry& that) const
- { return this->offset < that.offset; }
- };
// We have a vector of offset->lineno entries for every input section.
typedef Unordered_map<unsigned int, std::vector<Offset_to_lineno_entry> >
Lineno_map;