tree: start on massive tree refactor

The big thing going on here is that we are going to split up the libraries
a bit better, and remove GObject from the capture library. The libsysprof
library will bring in the capture library statically, so we can export the
symbols we want.

Eventually, we will bump the version to sysprof-3, but not yet.

src/libsysprof/elfparser.h

@@ -0,0 +1,57 @@
+/* Sysprof -- Sampling, systemwide CPU profiler
+ * Copyright 2006, 2007, Soeren Sandmann
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+#include <glib.h>
+
+typedef struct ElfSym ElfSym;
+typedef struct ElfParser ElfParser;
+
+ElfParser *   elf_parser_new_from_data   (const guchar  *data,
+					  gsize          length);
+ElfParser *   elf_parser_new             (const char    *filename,
+					  GError       **err);
+void          elf_parser_free            (ElfParser     *parser);
+const char *  elf_parser_get_debug_link  (ElfParser     *parser,
+					  guint32       *crc32);
+const gchar  *elf_parser_get_build_id    (ElfParser     *parser);
+const guchar *elf_parser_get_eh_frame    (ElfParser     *parser);
+const guchar *elf_parser_get_debug_frame (ElfParser     *parser);
+gulong        elf_parser_get_text_offset (ElfParser     *parser);
+
+
+/* Lookup a symbol in the file.
+ *
+ * The symbol returned is const, so don't free it. It is valid until
+ * elf_parser_free() is called on the parser.
+ *
+ * The address should be given in "file coordinates". This means that
+ * if the file is mapped at address m and offset o, then an address a
+ * should be looked up as  "a - (m - o)".  (m - o) is where the start
+ * of the file would have been mapped, so a - (m - o) is the position
+ * in the file of a.
+ */
+const ElfSym *elf_parser_lookup_symbol   (ElfParser     *parser,
+					  gulong         address);
+guint32       elf_parser_get_crc32       (ElfParser     *parser);
+const char *  elf_parser_get_sym_name    (ElfParser     *parser,
+					  const ElfSym  *sym);
+gulong        elf_parser_get_sym_address (ElfParser     *parser,
+					  const ElfSym  *sym);
+gboolean      elf_parser_owns_symbol     (ElfParser     *parser,
+					  const ElfSym  *sym);
+char *        elf_demangle               (const char    *name);
+