* final.c (end_final): Use C trees to output data structures for profiling.

	* Makefile.in (LIBGCC_DEPS): Added missing dependency on gcov-io.h
        (profile.o): New dependency profile.h
        (final.o): New dependency profile.h
        * profile.h: New file. New global structure profile_info.
        * final.h (count_edges_instrumented_now): Declare.
        (current_function_cfg_checksum): Declare.
        (function_list): New structure.
        (functions_head, functions_tail): New static variables.
        (end_final): Emits more data, removed some -ax stuff.
        (final): Stores function names and chcksums.
        * gcov-io.h (__write_gcov_string): New function.
        (__read_gcov_string): New function.
        * gcov.c (read_profile): New function.
        (create_program_flow_graph): Uses read_profile instead of reading
	da_file.
        (read_files): Removed da_file checking, it's done by read_profile now.
        * libgcc2.c (bb_function_info): New structure.
        (bb): New field in structure, removed some -ax stuff.
        (__bb_exit_func): Changed structure of da_file.
        * profile.c (count_edges_instrumented_now): New global variable.
        (current_function_cfg_checksum): New global variable.
        (max_counter_in_program): New global variable.
        (get_exec_counts): New function.
        (compute_checksum): New function.
        (instrument_edges): Sets count_edges_instrumented_now.
        (compute_branch_probabilities): Uses get_exec_counts instead of
	reading da_file.
        (branch_prob): Calls compute_checksum and writes extra data to bbg_file.
        (init_branch_prob): Removed da_file checking, done in get_exec_counts
	now.
        (end_branch_prob): Removed da_file checking, done in get_exec_counts
	now.
        * gcov.texi: Updated information about gcov file format.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53330 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/profile.h b/gcc/profile.h
new file mode 100644 (file)
index 0000000..a6bc7ee
--- /dev/null
+++ b/gcc/profile.h
@@ -0,0 +1,52 @@
+/* profile.h - Defines data exported from profile.c to other passes.
+   Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC 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, or (at your option) any later
+version.
+
+GCC 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 GCC; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.  */
+
+#ifndef GCC_PROFILE_H
+#define GCC_PROFILE_H
+
+struct
+  {
+    /* Used by final, for allocating the proper amount of storage for the
+       instrumented arc execution counts.  */
+
+    int count_instrumented_edges;
+
+    /* Used by final, for writing correct # of instrumented edges
+       in this function.  */
+
+    int count_edges_instrumented_now;
+
+    /* Checksum of the cfg. Used for 'identification' of code.
+       Used by final.  */
+
+    long current_function_cfg_checksum;
+
+    /* Max. value of counter in program corresponding to the profile data
+       for the current function.  */
+
+    gcov_type max_counter_in_program;
+
+    /* The number of profiles merged to form the profile data for the current
+       function.  */
+    int count_profiles_merged;
+
+  } profile_info;
+
+#endif