gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / gold / dwarf_reader.h

diff --git a/gold/dwarf_reader.h b/gold/dwarf_reader.h
index 86d80bb1b8005ebe313fdd964eb2832d69e1029d..9b140e7878ebc2eda9f05ebfb73706a625b8427b 100644 (file)
--- a/gold/dwarf_reader.h
+++ b/gold/dwarf_reader.h
@@ -1,7 +1,6 @@
 // dwarf_reader.h -- parse dwarf2/3 debug information for gold  -*- C++ -*-
 
-// Copyright 2007, 2008, 2009, 2010, 2011, 2012, 2013
-// Free Software Foundation, Inc.
+// Copyright (C) 2007-2020 Free Software Foundation, Inc.
 // Written by Ian Lance Taylor <iant@google.com>.
 
 // This file is part of gold.
@@ -400,8 +399,9 @@ class Dwarf_pubnames_table
  public:
   Dwarf_pubnames_table(Dwarf_info_reader* dwinfo, bool is_pubtypes)
     : dwinfo_(dwinfo), buffer_(NULL), buffer_end_(NULL), owns_buffer_(false),
-      offset_size_(0), pinfo_(NULL), is_pubtypes_(is_pubtypes),
-      output_section_offset_(0), unit_length_(0), cu_offset_(0)
+      offset_size_(0), pinfo_(NULL), end_of_table_(NULL),
+      is_pubtypes_(is_pubtypes), is_gnu_style_(false),
+      unit_length_(0), cu_offset_(0)
   { }
 
   ~Dwarf_pubnames_table()
@@ -431,9 +431,10 @@ class Dwarf_pubnames_table
   subsection_size()
   { return this->unit_length_; }
 
-  // Read the next name from the set.
+  // Read the next name from the set.  If the pubname table is gnu-style,
+  // FLAG_BYTE is set to the high-byte of a gdb_index version 7 cu_index.
   const char*
-  next_name();
+  next_name(uint8_t* flag_byte);
 
  private:
   // The Dwarf_info_reader, for reading data.
@@ -447,13 +448,13 @@ class Dwarf_pubnames_table
   unsigned int offset_size_;
   // The current position within the buffer.
   const unsigned char* pinfo_;
+  // The end of the current pubnames table.
+  const unsigned char* end_of_table_;
   // TRUE if this is a .debug_pubtypes section.
   bool is_pubtypes_;
-  // For incremental update links, this will hold the offset of the
-  // input section within the output section.  Offsets read from
-  // relocated data will be relative to the output section, and need
-  // to be corrected before reading data from the input section.
-  uint64_t output_section_offset_;
+  // Gnu-style pubnames table. This style has an extra flag byte between the
+  // offset and the name, and is used for generating version 7 of gdb-index.
+  bool is_gnu_style_;
   // Fields read from the header.
   uint64_t unit_length_;
   off_t cu_offset_;
@@ -763,6 +764,13 @@ class Dwarf_info_reader
   address_size() const
   { return this->address_size_; }
 
+  // Return the size of a DW_FORM_ref_addr.
+  // In DWARF v2, this was the size of an address; in DWARF v3 and later,
+  // it is the size of an DWARF offset.
+  unsigned int
+  ref_addr_size() const
+  { return this->cu_version_ > 2 ? this->offset_size_ : this->address_size_; }
+
   // Set the section index of the .debug_abbrev section.
   // We use this if there are no relocations for the .debug_info section.
   // If not set, the code parse() routine will search for the section by name.
@@ -803,8 +811,8 @@ class Dwarf_info_reader
 
   // Visit a type unit.
   virtual void
-  visit_type_unit(off_t tu_offset, off_t type_offset, uint64_t signature,
-                 Dwarf_die* root_die);
+  visit_type_unit(off_t tu_offset, off_t tu_length, off_t type_offset,
+                 uint64_t signature, Dwarf_die* root_die);
 
   // Read the range table.
   Dwarf_range_list*
@@ -1062,7 +1070,8 @@ class Sized_dwarf_line_info : public Dwarf_line_info
     off_t total_length;
     int version;
     off_t prologue_length;
-    int min_insn_length; // insn stands for instructin
+    int min_insn_length; // insn stands for instruction
+    int max_ops_per_insn; // Added in DWARF-4.
     bool default_is_stmt; // stmt stands for statement
     signed char line_base;
     int line_range;