Add threading support.

[external/binutils.git] / gold / options.h

diff --git a/gold/options.h b/gold/options.h
index f9782cc..c7b08e8 100644 (file)
--- a/gold/options.h
+++ b/gold/options.h
@@ -37,16 +37,22 @@
 #include <string>
 #include <vector>
 
+#include "script.h"
+
 namespace gold
 {
 
 class Command_line;
 class Input_file_group;
+class Position_dependent_options;
 
-namespace options {
+namespace options
+{
 
 class Command_line_options;
 struct One_option;
+struct One_z_option;
+struct One_debug_option;
 
 } // End namespace gold::options.
 
@@ -144,11 +150,33 @@ class General_options
   strip_debug() const
   { return this->strip_ == STRIP_ALL || this->strip_ == STRIP_DEBUG; }
 
+  // -Sgdb: strip only debugging information that's not used by
+  //         gdb (at least, for gdb versions <= 6.7).
+  bool
+  strip_debug_gdb() const
+  { return this->strip_debug() || this->strip_ == STRIP_DEBUG_UNUSED_BY_GDB; }
+
+  // --allow-shlib-undefined: do not warn about unresolved symbols in
+  // --shared libraries.
+  bool
+  allow_shlib_undefined() const
+  { return this->allow_shlib_undefined_; }
+
   // -Bsymbolic: bind defined symbols locally.
   bool
   symbolic() const
   { return this->symbolic_; }
 
+  // --demangle: demangle C++ symbols in our log messages.
+  bool
+  demangle() const
+  { return this->demangle_; }
+
+  // --detect-odr-violations: Whether to search for One Defn Rule violations.
+  bool
+  detect_odr_violations() const
+  { return this->detect_odr_violations_; }
+
   // --eh-frame-hdr: Whether to generate an exception frame header.
   bool
   create_eh_frame_hdr() const
@@ -214,6 +242,20 @@ class General_options
   thread_count_final() const
   { return this->thread_count_final_; }
 
+  // -z execstack, -z noexecstack
+  bool
+  is_execstack_set() const
+  { return this->execstack_ != EXECSTACK_FROM_INPUT; }
+
+  bool
+  is_stack_executable() const
+  { return this->execstack_ == EXECSTACK_YES; }
+
+  // --debug
+  unsigned int
+  debug() const
+  { return this->debug_; }
+
  private:
   // Don't copy this structure.
   General_options(const General_options&);
@@ -230,7 +272,20 @@ class General_options
     // Strip all symbols.
     STRIP_ALL,
     // Strip debugging information.
-    STRIP_DEBUG
+    STRIP_DEBUG,
+    // Strip debugging information that's not used by gdb (at least <= 6.7)
+    STRIP_DEBUG_UNUSED_BY_GDB
+  };
+
+  // Whether to mark the stack as executable.
+  enum Execstack
+  {
+    // Not set on command line.
+    EXECSTACK_FROM_INPUT,
+    // Mark the stack as executable.
+    EXECSTACK_YES,
+    // Mark the stack as not executable.
+    EXECSTACK_NO
   };
 
   void
@@ -272,10 +327,34 @@ class General_options
   { this->strip_ = STRIP_DEBUG; }
 
   void
+  set_strip_debug_gdb()
+  { this->strip_ = STRIP_DEBUG_UNUSED_BY_GDB; }
+
+  void
+  set_allow_shlib_undefined()
+  { this->allow_shlib_undefined_ = true; }
+
+  void
+  set_no_allow_shlib_undefined()
+  { this->allow_shlib_undefined_ = false; }
+
+  void
   set_symbolic()
   { this->symbolic_ = true; }
 
   void
+  set_demangle()
+  { this->demangle_ = true; }
+
+  void
+  clear_demangle()
+  { this->demangle_ = false; }
+
+  void
+  set_detect_odr_violations()
+  { this->detect_odr_violations_ = true; }
+
+  void
   set_create_eh_frame_hdr()
   { this->create_eh_frame_hdr_ = true; }
 
@@ -364,6 +443,26 @@ class General_options
   ignore(const char*)
   { }
 
+  void
+  set_execstack()
+  { this->execstack_ = EXECSTACK_YES; }
+
+  void
+  set_noexecstack()
+  { this->execstack_ = EXECSTACK_NO; }
+
+  void
+  set_debug(unsigned int flags)
+  { this->debug_ = flags; }
+
+  // Handle the -z option.
+  void
+  handle_z_option(const char*);
+
+  // Handle the --debug option.
+  void
+  handle_debug_option(const char*);
+
   // Apply any sysroot to the directory lists.
   void
   add_sysroot();
@@ -375,7 +474,10 @@ class General_options
   const char* output_file_name_;
   bool is_relocatable_;
   Strip strip_;
+  bool allow_shlib_undefined_;
   bool symbolic_;
+  bool demangle_;
+  bool detect_odr_violations_;
   bool create_eh_frame_hdr_;
   Dir_list rpath_;
   Dir_list rpath_link_;
@@ -388,6 +490,8 @@ class General_options
   int thread_count_initial_;
   int thread_count_middle_;
   int thread_count_final_;
+  Execstack execstack_;
+  unsigned int debug_;
 };
 
 // The current state of the position dependent options.
@@ -659,9 +763,14 @@ class Command_line
   void
   process(int argc, char** argv);
 
+  // Process one command-line option.  This takes the index of argv to
+  // process, and returns the index for the next option.
+  int
+  process_one_option(int argc, char** argv, int i, bool* no_more_options);
+
   // Handle a -l option.
   int
-  process_l_option(int, char**, char*);
+  process_l_option(int, char**, char*, bool);
 
   // Handle a --start-group option.
   void
@@ -671,11 +780,22 @@ class Command_line
   void
   end_group(const char* arg);
 
+  // Get an option argument--a helper function for special processing.
+  const char*
+  get_special_argument(const char* longname, int argc, char** argv,
+                      const char* arg, bool long_option,
+                      int *pret);
+
   // Get the general options.
   const General_options&
   options() const
   { return this->options_; }
 
+  // Get the position dependent options.
+  const Position_dependent_options&
+  position_dependent_options() const
+  { return this->position_options_; }
+
   // The number of input files.
   int
   number_of_input_files() const