Add initial support for the RTEM Trace Linker.

The RTEMS Trace Linker or rtems-rld creates an RTEMS executable with
trace support built in without any changes the existing code.

This commit is an initial starting point with function signatures
being read from INI files.

1 files changed, 150 insertions, 0 deletions

diff --git a/linkers/rld-config.cpp b/linkers/rld-config.cpp
new file mode 100644
index 0000000..b6b84c2
--- /dev/null
+++ b/linkers/rld-config.cpp
@@ -0,0 +1,150 @@
+/*
+ * Copyright (c) 2014, 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_rld
+ *
+ * @brief INI Configuration reader.
+ *
+ */
+
+#include <errno.h>
+
+#include <rld-config.h>
+#include <rld.h>
+
+#include <SimpleIni.h>
+
+namespace rld
+{
+  namespace config
+  {
+    item::item (const std::string& text)
+      : text (text)
+    {
+    }
+
+    item::item (const char* text)
+      : text (text)
+    {
+    }
+
+    const record&
+    section::get_record (const std::string& name) const
+    {
+      for (records::const_iterator ri = recs.begin ();
+           ri != recs.end ();
+           ++ri)
+      {
+        if ((*ri).name == name)
+          return *ri;
+      }
+
+      throw error ("not found", "config record: " + this->name + '/' + name);
+    }
+
+    config::config()
+    {
+    }
+
+    config::~config()
+    {
+    }
+
+    void
+    config::clear ()
+    {
+      secs.clear ();
+    }
+
+    void
+    config::load (const std::string& path)
+    {
+      CSimpleIniCaseA ini (false, true, true);
+
+      if (ini.LoadFile (path.c_str ()) != SI_OK)
+        throw rld::error (::strerror (errno), "load config: " + path);
+
+      paths.push_back (path);
+
+      /*
+       * Merge the loaded configuration into our configuration.
+       */
+
+      CSimpleIniCaseA::TNamesDepend skeys;
+
+      ini.GetAllSections(skeys);
+
+      for (CSimpleIniCaseA::TNamesDepend::const_iterator si = skeys.begin ();
+           si != skeys.end ();
+           ++si)
+      {
+        section sec;
+
+        sec.name = (*si).pItem;
+
+        CSimpleIniCaseA::TNamesDepend rkeys;
+
+        ini.GetAllKeys((*si).pItem, rkeys);
+
+        for (CSimpleIniCaseA::TNamesDepend::const_iterator ri = rkeys.begin ();
+             ri != rkeys.end ();
+             ++ri)
+        {
+          record rec;
+
+          rec.name = (*ri).pItem;
+
+          CSimpleIniCaseA::TNamesDepend vals;
+
+          ini.GetAllValues((*si).pItem, (*ri).pItem, vals);
+
+          for (CSimpleIniCaseA::TNamesDepend::const_iterator vi = vals.begin ();
+               vi != vals.end ();
+               ++vi)
+          {
+            rec.items.push_back (item ((*vi).pItem));
+          }
+
+          sec.recs.push_back (rec);
+        }
+
+        secs.push_back (sec);
+      }
+    }
+
+    const section&
+    config::get_section (const std::string& name) const
+    {
+      for (sections::const_iterator si = secs.begin ();
+           si != secs.end ();
+           ++si)
+      {
+        if ((*si).name == name)
+          return *si;
+      }
+
+      throw error ("not found", "config section: " + name);
+    }
+
+    const paths&
+    config::get_paths () const
+    {
+      return paths;
+    }
+  }
+}