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

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* 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.

From-SVN: r53330
This commit is contained in:
Jan Hubicka 2002-05-09 15:07:00 +00:00
parent 02263a8a37
commit 52015d87ea
1 changed files with 52 additions and 0 deletions
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gcc/profile.h Normal file
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/* 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