/* Read and write coverage files, and associated functionality.
Copyright (C) 1990, 1991, 1992, 1993, 1994, 1996, 1997, 1998, 1999,
- 2000, 2001, 2003, 2004, 2005 Free Software Foundation, Inc.
+ 2000, 2001, 2003, 2004, 2005, 2007, 2008 Free Software Foundation,
+ Inc.
Contributed by James E. Wilson, UC Berkeley/Cygnus Support;
based on some ideas from Dain Samples of UC Berkeley.
Further mangling by Bob Manson, Cygnus Support.
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
+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
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, 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#define GCOV_LINKAGE
#include "expr.h"
#include "function.h"
#include "toplev.h"
+#include "tm_p.h"
#include "ggc.h"
#include "coverage.h"
#include "langhooks.h"
#include "hashtab.h"
#include "tree-iterator.h"
#include "cgraph.h"
+#include "tree-pass.h"
#include "gcov-io.c"
static hashval_t
htab_counts_entry_hash (const void *of)
{
- const counts_entry_t *entry = of;
+ const counts_entry_t *const entry = (const counts_entry_t *) of;
return entry->ident * GCOV_COUNTERS + entry->ctr;
}
static int
htab_counts_entry_eq (const void *of1, const void *of2)
{
- const counts_entry_t *entry1 = of1;
- const counts_entry_t *entry2 = of2;
+ const counts_entry_t *const entry1 = (const counts_entry_t *) of1;
+ const counts_entry_t *const entry2 = (const counts_entry_t *) of2;
return entry1->ident == entry2->ident && entry1->ctr == entry2->ctr;
}
static void
htab_counts_entry_del (void *of)
{
- counts_entry_t *entry = of;
+ counts_entry_t *const entry = (counts_entry_t *) of;
free (entry->counts);
free (entry);
/* Read and discard the stamp. */
gcov_read_unsigned ();
-
+
counts_hash = htab_create (10,
htab_counts_entry_hash, htab_counts_entry_eq,
htab_counts_entry_del);
static int warned = 0;
if (!warned++)
- inform ((flag_guess_branch_prob
+ inform (input_location, (flag_guess_branch_prob
? "file %s not found, execution counts estimated"
: "file %s not found, execution counts assumed to be zero"),
da_file_name);
elt.ident = current_function_funcdef_no + 1;
elt.ctr = counter;
- entry = htab_find (counts_hash, &elt);
+ entry = (counts_entry_t *) htab_find (counts_hash, &elt);
if (!entry)
{
- warning (0, "no coverage for function %qs found", IDENTIFIER_POINTER
- (DECL_ASSEMBLER_NAME (current_function_decl)));
+ warning (0, "no coverage for function %qE found",
+ DECL_ASSEMBLER_NAME (current_function_decl));
return NULL;
}
|| entry->summary.num != expected)
{
static int warned = 0;
- const char *id = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME
- (current_function_decl));
+ tree id = DECL_ASSEMBLER_NAME (current_function_decl);
if (warn_coverage_mismatch)
warning (OPT_Wcoverage_mismatch, "coverage mismatch for function "
- "%qs while reading counter %qs", id, ctr_names[counter]);
+ "%qE while reading counter %qs", id, ctr_names[counter]);
else
- error ("coverage mismatch for function %qs while reading counter %qs",
+ error ("coverage mismatch for function %qE while reading counter %qs",
id, ctr_names[counter]);
if (!inhibit_warnings)
{
if (entry->checksum != checksum)
- inform ("checksum is %x instead of %x", entry->checksum, checksum);
+ inform (input_location, "checksum is %x instead of %x", entry->checksum, checksum);
else
- inform ("number of counters is %d instead of %d",
+ inform (input_location, "number of counters is %d instead of %d",
entry->summary.num, expected);
}
&& !inhibit_warnings
&& !warned++)
{
- inform ("coverage mismatch ignored due to -Wcoverage-mismatch");
- inform (flag_guess_branch_prob
+ inform (input_location, "coverage mismatch ignored due to -Wcoverage-mismatch");
+ inform (input_location, flag_guess_branch_prob
? "execution counts estimated"
: "execution counts assumed to be zero");
if (!flag_guess_branch_prob)
- inform ("this can result in poorly optimized code");
+ inform (input_location, "this can result in poorly optimized code");
}
return NULL;
tree gcov_type_array_type
= build_array_type (gcov_type_node, NULL_TREE);
tree_ctr_tables[counter]
- = build_decl (VAR_DECL, NULL_TREE, gcov_type_array_type);
+ = build_decl (BUILTINS_LOCATION,
+ VAR_DECL, NULL_TREE, gcov_type_array_type);
TREE_STATIC (tree_ctr_tables[counter]) = 1;
ASM_GENERATE_INTERNAL_LABEL (buf, "LPBX", counter + 1);
DECL_NAME (tree_ctr_tables[counter]) = get_identifier (buf);
DECL_ALIGN (tree_ctr_tables[counter]) = TYPE_ALIGN (gcov_type_node);
+
+ if (dump_file)
+ fprintf (dump_file, "Using data file %s\n", da_file_name);
}
fn_b_ctrs[counter] = fn_n_ctrs[counter];
fn_n_ctrs[counter] += num;
return build4 (ARRAY_REF, gcov_type_node, tree_ctr_tables[counter],
build_int_cst (NULL_TREE, no), NULL, NULL);
}
+
+/* Generate a tree to access the address of COUNTER NO. */
+
+tree
+tree_coverage_counter_addr (unsigned counter, unsigned no)
+{
+ tree gcov_type_node = get_gcov_type ();
+
+ gcc_assert (no < fn_n_ctrs[counter] - fn_b_ctrs[counter]);
+ no += prg_n_ctrs[counter] + fn_b_ctrs[counter];
+
+ TREE_ADDRESSABLE (tree_ctr_tables[counter]) = 1;
+
+ /* "no" here is an array index, scaled to bytes later. */
+ return build_fold_addr_expr (build4 (ARRAY_REF, gcov_type_node,
+ tree_ctr_tables[counter],
+ build_int_cst (NULL_TREE, no),
+ NULL, NULL));
+}
\f
/* Generate a checksum for a string. CHKSUM is the current
checksum. */
_GLOBAL__N_<filename>_<wrongmagicnumber>_<magicnumber>functionname
since filename might contain extra underscores there seems
to be no better chance then walk all possible offsets looking
- for magicnuber. */
+ for magicnumber. */
if (offset)
{
for (i = i + offset; string[i]; i++)
int
coverage_begin_output (void)
{
- if (no_coverage)
+ /* We don't need to output .gcno file unless we're under -ftest-coverage
+ (e.g. -fprofile-arcs/generate/use don't need .gcno to work). */
+ if (no_coverage || !flag_test_coverage || flag_compare_debug)
return 0;
if (!bbg_function_announced)
tree array_type;
/* ident */
- fields = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
+ fields = build_decl (BUILTINS_LOCATION,
+ FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
/* checksum */
- field = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
+ field = build_decl (BUILTINS_LOCATION,
+ FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
TREE_CHAIN (field) = fields;
fields = field;
array_type = build_array_type (get_gcov_unsigned_t (), array_type);
/* counters */
- field = build_decl (FIELD_DECL, NULL_TREE, array_type);
+ field = build_decl (BUILTINS_LOCATION,
+ FIELD_DECL, NULL_TREE, array_type);
TREE_CHAIN (field) = fields;
fields = field;
tree gcov_merge_fn_type;
/* counters */
- field = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
+ field = build_decl (BUILTINS_LOCATION,
+ FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
TREE_CHAIN (field) = fields;
fields = field;
/* values */
- field = build_decl (FIELD_DECL, NULL_TREE, gcov_ptr_type);
+ field = build_decl (BUILTINS_LOCATION,
+ FIELD_DECL, NULL_TREE, gcov_ptr_type);
TREE_CHAIN (field) = fields;
fields = field;
build_function_type_list (void_type_node,
gcov_ptr_type, get_gcov_unsigned_t (),
NULL_TREE);
- field = build_decl (FIELD_DECL, NULL_TREE,
+ field = build_decl (BUILTINS_LOCATION,
+ FIELD_DECL, NULL_TREE,
build_pointer_type (gcov_merge_fn_type));
TREE_CHAIN (field) = fields;
fields = field;
TREE_TYPE (tree_ctr_tables[counter]) = array_type;
DECL_SIZE (tree_ctr_tables[counter]) = TYPE_SIZE (array_type);
DECL_SIZE_UNIT (tree_ctr_tables[counter]) = TYPE_SIZE_UNIT (array_type);
- assemble_variable (tree_ctr_tables[counter], 0, 0, 0);
+ varpool_finalize_decl (tree_ctr_tables[counter]);
value = tree_cons (fields,
- build1 (ADDR_EXPR, TREE_TYPE (fields),
+ build1 (ADDR_EXPR, TREE_TYPE (fields),
tree_ctr_tables[counter]),
value);
}
value = tree_cons (fields, null_pointer_node, value);
fields = TREE_CHAIN (fields);
- fn = build_decl (FUNCTION_DECL,
+ fn = build_decl (BUILTINS_LOCATION,
+ FUNCTION_DECL,
get_identifier (ctr_merge_functions[counter]),
TREE_TYPE (TREE_TYPE (fields)));
DECL_EXTERNAL (fn) = 1;
TREE_PUBLIC (fn) = 1;
DECL_ARTIFICIAL (fn) = 1;
TREE_NOTHROW (fn) = 1;
+ DECL_ASSEMBLER_NAME (fn); /* Initialize assembler name so we can stream out. */
value = tree_cons (fields,
build1 (ADDR_EXPR, TREE_TYPE (fields), fn),
value);
tree field, fields = NULL_TREE;
tree value = NULL_TREE;
tree filename_string;
- char *filename;
- int filename_len;
+ int da_file_name_len;
unsigned n_fns;
const struct function_list *fn;
tree string_type;
const_type = build_qualified_type (type, TYPE_QUAL_CONST);
/* Version ident */
- field = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
+ field = build_decl (BUILTINS_LOCATION,
+ FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
TREE_CHAIN (field) = fields;
fields = field;
value = tree_cons (field, build_int_cstu (TREE_TYPE (field), GCOV_VERSION),
value);
/* next -- NULL */
- field = build_decl (FIELD_DECL, NULL_TREE, build_pointer_type (const_type));
+ field = build_decl (BUILTINS_LOCATION,
+ FIELD_DECL, NULL_TREE, build_pointer_type (const_type));
TREE_CHAIN (field) = fields;
fields = field;
value = tree_cons (field, null_pointer_node, value);
/* stamp */
- field = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
+ field = build_decl (BUILTINS_LOCATION,
+ FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
TREE_CHAIN (field) = fields;
fields = field;
value = tree_cons (field, build_int_cstu (TREE_TYPE (field), local_tick),
/* Filename */
string_type = build_pointer_type (build_qualified_type (char_type_node,
TYPE_QUAL_CONST));
- field = build_decl (FIELD_DECL, NULL_TREE, string_type);
+ field = build_decl (BUILTINS_LOCATION,
+ FIELD_DECL, NULL_TREE, string_type);
TREE_CHAIN (field) = fields;
fields = field;
- filename = getpwd ();
- filename = (filename && da_file_name[0] != '/'
- ? concat (filename, "/", da_file_name, NULL)
- : da_file_name);
- filename_len = strlen (filename);
- filename_string = build_string (filename_len + 1, filename);
- if (filename != da_file_name)
- free (filename);
+ da_file_name_len = strlen (da_file_name);
+ filename_string = build_string (da_file_name_len + 1, da_file_name);
TREE_TYPE (filename_string) = build_array_type
(char_type_node, build_index_type
- (build_int_cst (NULL_TREE, filename_len)));
+ (build_int_cst (NULL_TREE, da_file_name_len)));
value = tree_cons (field, build1 (ADDR_EXPR, string_type, filename_string),
value);
fn_info_value = null_pointer_node;
/* number of functions */
- field = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
+ field = build_decl (BUILTINS_LOCATION,
+ FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
TREE_CHAIN (field) = fields;
fields = field;
value = tree_cons (field,
value);
/* fn_info table */
- field = build_decl (FIELD_DECL, NULL_TREE, fn_info_ptr_type);
+ field = build_decl (BUILTINS_LOCATION,
+ FIELD_DECL, NULL_TREE, fn_info_ptr_type);
TREE_CHAIN (field) = fields;
fields = field;
value = tree_cons (field, fn_info_value, value);
/* counter_mask */
- field = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
+ field = build_decl (BUILTINS_LOCATION,
+ FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
TREE_CHAIN (field) = fields;
fields = field;
value = tree_cons (field,
ctr_info_value = build_constructor_from_list (ctr_info_ary_type,
nreverse (ctr_info_value));
- field = build_decl (FIELD_DECL, NULL_TREE, ctr_info_ary_type);
+ field = build_decl (BUILTINS_LOCATION,
+ FIELD_DECL, NULL_TREE, ctr_info_ary_type);
TREE_CHAIN (field) = fields;
fields = field;
value = tree_cons (field, ctr_info_value, value);
t = build_gcov_info ();
- gcov_info = build_decl (VAR_DECL, NULL_TREE, TREE_TYPE (t));
+ gcov_info = build_decl (BUILTINS_LOCATION,
+ VAR_DECL, NULL_TREE, TREE_TYPE (t));
TREE_STATIC (gcov_info) = 1;
ASM_GENERATE_INTERNAL_LABEL (name_buf, "LPBX", 0);
DECL_NAME (gcov_info) = get_identifier (name_buf);
DECL_INITIAL (gcov_info) = t;
/* Build structure. */
- assemble_variable (gcov_info, 0, 0, 0);
+ varpool_finalize_decl (gcov_info);
/* Build a decl for __gcov_init. */
t = build_pointer_type (TREE_TYPE (gcov_info));
t = build_function_type_list (void_type_node, t, NULL);
- t = build_decl (FUNCTION_DECL, get_identifier ("__gcov_init"), t);
+ t = build_decl (BUILTINS_LOCATION,
+ FUNCTION_DECL, get_identifier ("__gcov_init"), t);
TREE_PUBLIC (t) = 1;
DECL_EXTERNAL (t) = 1;
+ DECL_ASSEMBLER_NAME (t); /* Initialize assembler name so we can stream out. */
gcov_init = t;
/* Generate a call to __gcov_init(&gcov_info). */
coverage_init (const char *filename)
{
int len = strlen (filename);
+ /* + 1 for extra '/', in case prefix doesn't end with /. */
+ int prefix_len;
+
+ if (profile_data_prefix == 0 && filename[0] != '/')
+ profile_data_prefix = getpwd ();
+
+ prefix_len = (profile_data_prefix) ? strlen (profile_data_prefix) + 1 : 0;
/* Name of da file. */
- da_file_name = XNEWVEC (char, len + strlen (GCOV_DATA_SUFFIX) + 1);
- strcpy (da_file_name, filename);
+ da_file_name = XNEWVEC (char, len + strlen (GCOV_DATA_SUFFIX)
+ + prefix_len + 1);
+
+ if (profile_data_prefix)
+ {
+ strcpy (da_file_name, profile_data_prefix);
+ da_file_name[prefix_len - 1] = '/';
+ da_file_name[prefix_len] = 0;
+ }
+ else
+ da_file_name[0] = 0;
+ strcat (da_file_name, filename);
strcat (da_file_name, GCOV_DATA_SUFFIX);
/* Name of bbg file. */
strcpy (bbg_file_name, filename);
strcat (bbg_file_name, GCOV_NOTE_SUFFIX);
- read_counts_file ();
+ if (flag_profile_use)
+ read_counts_file ();
}
/* Performs file-level cleanup. Close graph file, generate coverage
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