Refactor code into the RTEMS Toolkit.

rtemstoolkit/rld.cpp

@@ -0,0 +1,319 @@
+/*
+ * Copyright (c) 2011, Chris Johns <chrisj@rtems.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/**
+ * @file
+ *
+ * @ingroup rtems_ld
+ *
+ * @brief RTEMS Linker.
+ *
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <iostream>
+
+#include <sys/stat.h>
+
+#include <rld.h>
+
+#define RLD_VERSION_MAJOR   (1)
+#define RLD_VERSION_MINOR   (0)
+#define RLD_VERSION_RELEASE (0)
+
+namespace rld
+{
+  static int verbose_level = 0;
+
+  /**
+   * The program's command line.
+   */
+  static std::string cmdline;
+
+  /**
+   * The program name as set by the caller.
+   */
+  static std::string progname;
+
+  /**
+   * The option container.
+   */
+  typedef std::vector < std::string > library_container;
+
+  /**
+   * The libraries the user provided on the command line.
+   */
+  static library_container libpaths;
+
+  /**
+   * The libraries pass on the command line.
+   */
+  static library_container libs;
+
+  /**
+   * The libraries.
+   */
+  static library_container libraries;
+
+  /**
+   * The output passed on the command line.
+   */
+  //static std::string output;
+
+  bool
+  starts_with(const std::string& s1, const std::string& s2)
+  {
+    return s2.size () <= s1.size () && s1.compare (0, s2.size (), s2) == 0;
+  }
+
+  const std::string
+  ltrim (const std::string& s)
+  {
+    std::string t = s;
+    t.erase (t.begin (),
+             std::find_if (t.begin (), t.end (),
+                         std::not1 (std::ptr_fun < int, int > (std::isspace))));
+    return t;
+  }
+
+  const std::string
+  rtrim (const std::string& s)
+  {
+    std::string t = s;
+    t.erase (std::find_if (t.rbegin (), t.rend (),
+                           std::not1 (std::ptr_fun < int, int > (std::isspace))).base(),
+             t.end());
+    return t;
+  }
+
+  const std::string
+  trim (const std::string& s)
+  {
+    return ltrim (rtrim (s));
+  }
+
+  const std::string
+  dequote (const std::string& s)
+  {
+    if (!s.empty ())
+    {
+      char front = s[0];
+      char back = s[s.length () - 1];
+      if ((front == '"') || (front == '\''))
+      {
+        if (front != back)
+          throw rld::error ("invalid quoting", "string: " + s);
+        return s.substr (1, s.length () - (1 + 1));
+      }
+    }
+    return s;
+  }
+
+  const std::string
+  find_replace(const std::string& sin,
+               const std::string& out,
+               const std::string& in)
+  {
+    std::string s = sin;
+    size_t      pos = 0;
+    while ((pos = s.find (out, pos)) != std::string::npos)
+    {
+      s.replace (pos, out.length (), in);
+      pos += in.length ();
+    }
+    return s;
+  }
+
+  const strings
+  split (strings&           se,
+         const std::string& s,
+         char               delimiter,
+         bool               strip_quotes,
+         bool               strip_whitespace,
+         bool               empty)
+  {
+    std::stringstream ss(s);
+    std::string       e;
+    se.clear ();
+    while (std::getline (ss, e, delimiter))
+    {
+      if (strip_whitespace)
+        e = trim (e);
+      if (strip_quotes)
+        e = dequote (e);
+      if (empty || !e.empty ())
+      {
+        se.push_back (e);
+      }
+    }
+    return se;
+  }
+
+  const std::string
+  join (const strings& ss, const std::string& separator)
+  {
+    std::string s;
+    for (strings::const_iterator ssi = ss.begin ();
+         ssi != ss.end ();
+         ++ssi)
+    {
+      s += *ssi;
+      if ((ssi + 1) != ss.end ())
+        s += separator;
+    }
+    return s;
+  }
+
+  const std::string
+  tolower (const std::string& sin)
+  {
+    std::string s = sin;
+    std::transform (s.begin (), s.end (), s.begin (), ::tolower);
+    return s;
+  }
+
+  void
+  verbose_inc ()
+  {
+    ++verbose_level;
+  }
+
+  int
+  verbose (int level)
+  {
+    return verbose_level && (verbose_level >= level) ? verbose_level : 0;
+  }
+
+  const std::string
+  version ()
+  {
+    std::string v = (rld::to_string (RLD_VERSION_MAJOR) + '.' +
+                     rld::to_string (RLD_VERSION_MINOR) + '.' +
+                     rld::to_string (RLD_VERSION_RELEASE));
+    return v;
+  }
+
+  const std::string
+  rtems_version ()
+  {
+    return rld::to_string (RTEMS_VERSION);
+  }
+
+  void
+  set_cmdline (int argc, char* argv[])
+  {
+    cmdline.clear ();
+    for (int arg = 0; arg < argc; ++arg)
+    {
+      std::string a = argv[arg];
+      cmdline += ' ' + a;
+    }
+    cmdline = rld::trim (cmdline);
+  }
+
+  const std::string
+  get_cmdline ()
+  {
+    return cmdline;
+  }
+
+  void
+  set_progname (const std::string& progname_)
+  {
+    progname = rld::path::path_abs (progname_);
+  }
+
+  const std::string
+  get_progname ()
+  {
+    return progname;
+  }
+
+  const std::string
+  get_program_name ()
+  {
+    return rld::path::basename (progname);
+  }
+
+  const std::string
+  get_program_path ()
+  {
+    return rld::path::dirname (progname);
+  }
+
+  const std::string
+  get_prefix ()
+  {
+    std::string pp = get_program_path ();
+    if (rld::path::basename (pp) == "bin")
+      return rld::path::dirname (pp);
+    return "";
+  }
+
+  void
+  map (rld::files::cache& cache, rld::symbols::table& symbols)
+  {
+    std::cout << "Archive files    : " << cache.archive_count () << std::endl;
+    std::cout << "Object files     : " << cache.object_count () << std::endl;
+    std::cout << "Exported symbols : " << symbols.size () << std::endl;
+
+    std::cout << "Archives:" << std::endl;
+    cache.output_archive_files (std::cout);
+    std::cout << "Objects:" << std::endl;
+    cache.output_object_files (std::cout);
+
+    std::cout << "Exported symbols:" << std::endl;
+    rld::symbols::output (std::cout, symbols);
+    std::cout << "Unresolved symbols:" << std::endl;
+    cache.output_unresolved_symbols (std::cout);
+  }
+
+  void
+  warn_unused_externals (rld::files::object_list& objects)
+  {
+    bool first = true;
+    for (rld::files::object_list::iterator oli = objects.begin ();
+         oli != objects.end ();
+         ++oli)
+    {
+      rld::files::object&     object = *(*oli);
+      rld::symbols::pointers& externals = object.external_symbols ();
+
+      if (rld::symbols::referenced (externals) != externals.size ())
+      {
+        if (first)
+        {
+          std::cout << "Unreferenced externals in object files:" << std::endl;
+          first = false;
+        }
+
+        std::cout << ' ' << object.name ().basename () << std::endl;
+
+        for (rld::symbols::pointers::iterator sli = externals.begin ();
+             sli != externals.end ();
+             ++sli)
+        {
+          rld::symbols::symbol& sym = *(*sli);
+          if (sym.references () == 0)
+            std::cout << "  " << sym.name () << std::endl;
+        }
+      }
+    }
+  }
+
+}