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/* Definitions for various logging mechanisms in GCC.
Copyright (C) 2008 Free Software Foundation, Inc.
Contributed by Andrew MacLeod <amacleod@redhat.com>
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 3, 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 COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "function.h"
#include "langhooks.h"
#include "logging.h"
#ifdef ENABLE_LOGGING
/* This will form a stack of Pass Activity Logs. */
typedef struct pass_activity_log_stack {
struct pass_activity_log log;
struct pass_activity_log_stack *next;
int depth;
} pal_stack;
pal_stack root_log = { EMPTY_PASS_ACTIVITY_LOG, NULL, 0 };
static pal_stack *current_pal_stack = &root_log;
struct pass_activity_log *current_log = &(root_log.log);
static void finalize_pal (FILE *, pal_stack *);
static void push_pass_action (const char *);
static pal_stack * pop_pass_action (void);
static int stack_depth = 0;
static FILE *logfile = NULL;
#define print_field (f,name,value) if (value) \
fprintf (f, " %s:%ld", name, value)
/* Add PTR's data to the permanent log. */
static void
finalize_pal (FILE *f, pal_stack *stack_ptr)
{
pal *ptr = &(stack_ptr->log);
if (f == NULL)
return;
fprintf (f, "Pass '%s ' SA:%ld SC:%ld SD:%ld SM:%ld NC:%ld NR:%ld NL:%ld NDL:%ld\n",
ptr->name, ptr->stmts_added, ptr->stmts_changed,
ptr->stmts_deleted, ptr->stmts_moved, ptr->names_created,
ptr->names_removed, ptr->imm_links, ptr->imm_delinks);
#if 0
fprintf (f, "Pass '%s'", ptr->name);
print_field (f, "Stmts-added", ptr->stmts_added);
print_field (f, "Stmts-changed", ptr->stmts_changed);
print_field (f, "Stmts-deleted", ptr->stmts_deleted);
print_field (f, "Stmts-moved", ptr->stmts_moved);
print_field (f, "SSA-names-created", ptr->names_created);
print_field (f, "SSA-names-removed", ptr->names_removed);
print_field (f, "Imm-links-added", ptr->imm_links);
print_field (f, "Imm-links-removed", ptr->imm_delinks);
fprintf (f, "\n");
#endif
}
/* Create a new current pass action log called NAME on the stack. */
void
push_pass_action (const char *pass_name)
{
pal_stack *tmp = xmalloc (sizeof (pal_stack));
memset (tmp, 0, sizeof (pal_stack));
if (pass_name != NULL)
{
strncpy (tmp->log.name, pass_name, PAL_NAME_SIZE - 1);
tmp->log.name[PAL_NAME_SIZE - 1] = '\0';
}
tmp->next = current_pal_stack;
tmp->depth = ++stack_depth;
current_pal_stack = tmp;
current_log = &(current_pal_stack->log);
}
/* Remove the current pass action log from the stack and return it.
Return root_log if the stack is emp. */
pal_stack *
pop_pass_action (void)
{
pal_stack *ret = current_pal_stack;
if (ret != &root_log)
{
current_pal_stack = current_pal_stack->next;
current_log = &(current_pal_stack->log);
}
--stack_depth;
return ret;
}
static void
clear_root_log (void)
{
strcpy (root_log.log.name, "Root");
root_log.log.stmts_added = root_log.log.stmts_changed = 0;
root_log.log.stmts_deleted = 0;
root_log.log.stmts_moved = root_log.log.names_created = 0;
root_log.log.names_removed= 0;
root_log.log.imm_links = root_log.log.imm_delinks = 0;
root_log.depth = 0;
root_log.next = NULL;
stack_depth = 0;
}
/* Start all the logging routines. */
void
initialize_logging (tree fndecl)
{
clear_root_log ();
current_pal_stack = &root_log;
current_log = &(current_pal_stack->log);
logfile = fopen ("/tmp/gcc-logging", "a");
fprintf (logfile, "### Start logging : ");
if (fndecl)
{
if (cfun)
switch (cfun->function_frequency)
{
case FUNCTION_FREQUENCY_HOT:
fprintf (logfile, "hot ");
break;
case FUNCTION_FREQUENCY_UNLIKELY_EXECUTED:
fprintf (logfile, "cold ");
break;
default:
fprintf (logfile, "normal ");
}
fprintf (logfile, "%s (%s)",
lang_hooks.decl_printable_name (fndecl, 2),
(IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (fndecl))));
}
fprintf (logfile, "\n");
}
/* Terminate all the logging routines and fush any remaining logs. */
void
finalize_logging (void)
{
pal_stack *tmp;
while ((tmp = pop_pass_action ()) != &root_log)
{
finalize_pal (logfile, tmp);
free (tmp);
}
finalize_pal (logfile, &root_log);
gcc_assert (stack_depth == -1);
fprintf (logfile, "### End logging\n");
/* Clear root log. */
clear_root_log ();
fclose (logfile);
logfile = NULL;
}
void start_pass_logging (const char *name)
{
push_pass_action (name);
}
void finish_pass_logging (const char *name)
{
pal_stack *tmp = pop_pass_action ();
/* Make sure its the right pass being removed. */
if (name != NULL)
gcc_assert (strncmp (tmp->log.name, name, PAL_NAME_SIZE - 1) == 0);
else
gcc_assert (tmp->log.name[0] == '\0');
finalize_pal (logfile, tmp);
free (tmp);
}
#endif
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