/* Read and write coverage files, and associated functionality.
Copyright (C) 1990, 1991, 1992, 1993, 1994, 1996, 1997, 1998, 1999,
- 2000, 2001, 2003, 2004 Free Software Foundation, Inc.
+ 2000, 2001, 2003, 2004, 2005, 2007 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, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#define GCOV_LINKAGE
static tree build_ctr_info_value (unsigned, tree);
static tree build_gcov_info (void);
static void create_coverage (void);
+\f
+/* Return the type node for gcov_type. */
+
+tree
+get_gcov_type (void)
+{
+ return lang_hooks.types.type_for_size (GCOV_TYPE_SIZE, false);
+}
+/* Return the type node for gcov_unsigned_t. */
+
+static tree
+get_gcov_unsigned_t (void)
+{
+ return lang_hooks.types.type_for_size (32, true);
+}
\f
static hashval_t
htab_counts_entry_hash (const void *of)
if (!gcov_magic (gcov_read_unsigned (), GCOV_DATA_MAGIC))
{
- warning ("`%s' is not a gcov data file", da_file_name);
+ warning (0, "%qs is not a gcov data file", da_file_name);
gcov_close ();
return;
}
GCOV_UNSIGNED2STRING (v, tag);
GCOV_UNSIGNED2STRING (e, GCOV_VERSION);
- warning ("`%s' is version `%.*s', expected version `%.*s'",
+ warning (0, "%qs is version %q.*s, expected version %q.*s",
da_file_name, 4, v, 4, e);
gcov_close ();
return;
entry = *slot;
if (!entry)
{
- *slot = entry = xcalloc (1, sizeof (counts_entry_t));
+ *slot = entry = XCNEW (counts_entry_t);
entry->ident = elt.ident;
entry->ctr = elt.ctr;
entry->checksum = checksum;
entry->summary.num = n_counts;
- entry->counts = xcalloc (n_counts, sizeof (gcov_type));
+ entry->counts = XCNEWVEC (gcov_type, n_counts);
}
else if (entry->checksum != checksum)
{
- error ("coverage mismatch for function %u while reading execution counters.",
+ error ("coverage mismatch for function %u while reading execution counters",
fn_ident);
error ("checksum is %x instead of %x", entry->checksum, checksum);
htab_delete (counts_hash);
}
else if (entry->summary.num != n_counts)
{
- error ("coverage mismatch for function %u while reading execution counters.",
+ error ("coverage mismatch for function %u while reading execution counters",
fn_ident);
error ("number of counters is %d instead of %d", entry->summary.num, n_counts);
htab_delete (counts_hash);
gcov_sync (offset, length);
if ((is_error = gcov_is_error ()))
{
- error (is_error < 0 ? "`%s' has overflowed" : "`%s' is corrupted",
+ error (is_error < 0 ? "%qs has overflowed" : "%qs is corrupted",
da_file_name);
htab_delete (counts_hash);
break;
entry = htab_find (counts_hash, &elt);
if (!entry)
{
- warning ("no coverage for function '%s' found.", IDENTIFIER_POINTER
+ warning (0, "no coverage for function %qs found", IDENTIFIER_POINTER
(DECL_ASSEMBLER_NAME (current_function_decl)));
- return 0;
+ return NULL;
}
checksum = compute_checksum ();
- if (entry->checksum != checksum)
+ if (entry->checksum != checksum
+ || entry->summary.num != expected)
{
- error ("coverage mismatch for function '%s' while reading counter '%s'.",
- IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl)),
- ctr_names[counter]);
- error ("checksum is %x instead of %x", entry->checksum, checksum);
- return 0;
- }
- else if (entry->summary.num != expected)
- {
- error ("coverage mismatch for function '%s' while reading counter '%s'.",
- IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl)),
- ctr_names[counter]);
- error ("number of counters is %d instead of %d", entry->summary.num, expected);
- return 0;
+ static int warned = 0;
+ const char *id = IDENTIFIER_POINTER (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]);
+ else
+ error ("coverage mismatch for function %qs 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);
+ else
+ inform ("number of counters is %d instead of %d",
+ entry->summary.num, expected);
+ }
+
+ if (warn_coverage_mismatch
+ && !inhibit_warnings
+ && !warned++)
+ {
+ inform ("coverage mismatch ignored due to -Wcoverage-mismatch");
+ inform (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");
+ }
+
+ return NULL;
}
if (summary)
if (!tree_ctr_tables[counter])
{
- /* Generate and save a copy of this so it can be shared. */
- /* We don't know the size yet; make it big enough that nobody
- will make any clever transformation on it. */
+ /* Generate and save a copy of this so it can be shared. Leave
+ the index type unspecified for now; it will be set after all
+ functions have been compiled. */
char buf[20];
- tree domain_tree
- = build_index_type (build_int_cst (NULL_TREE, 1000, 0)); /* replaced later */
+ tree gcov_type_node = get_gcov_type ();
tree gcov_type_array_type
- = build_array_type (GCOV_TYPE_NODE, domain_tree);
+ = build_array_type (gcov_type_node, NULL_TREE);
tree_ctr_tables[counter]
= build_decl (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);
+ DECL_ALIGN (tree_ctr_tables[counter]) = TYPE_ALIGN (gcov_type_node);
}
fn_b_ctrs[counter] = fn_n_ctrs[counter];
fn_n_ctrs[counter] += num;
return 1;
}
-/* Generate a MEM rtl to access COUNTER NO. */
-
-rtx
-rtl_coverage_counter_ref (unsigned counter, unsigned no)
-{
- unsigned gcov_size = tree_low_cst (TYPE_SIZE (GCOV_TYPE_NODE), 1);
- enum machine_mode mode = mode_for_size (gcov_size, MODE_INT, 0);
- rtx ref;
-
- if (no >= fn_n_ctrs[counter] - fn_b_ctrs[counter])
- abort ();
- no += prg_n_ctrs[counter] + fn_b_ctrs[counter];
- if (!ctr_labels[counter])
- {
- ctr_labels[counter] = gen_rtx_SYMBOL_REF (Pmode,
- ggc_strdup (IDENTIFIER_POINTER (DECL_NAME
- (tree_ctr_tables[counter]))));
- SYMBOL_REF_FLAGS (ctr_labels[counter]) = SYMBOL_FLAG_LOCAL;
- }
- ref = plus_constant (ctr_labels[counter], gcov_size / BITS_PER_UNIT * no);
- ref = gen_rtx_MEM (mode, ref);
- set_mem_alias_set (ref, new_alias_set ());
- MEM_NOTRAP_P (ref) = 1;
-
- return ref;
-}
-
/* Generate a tree to access COUNTER NO. */
tree
tree_coverage_counter_ref (unsigned counter, unsigned no)
{
- tree domain_type = TYPE_DOMAIN (TREE_TYPE (tree_ctr_tables[counter]));
+ tree gcov_type_node = get_gcov_type ();
- if (no >= fn_n_ctrs[counter] - fn_b_ctrs[counter])
- abort ();
+ gcc_assert (no < fn_n_ctrs[counter] - fn_b_ctrs[counter]);
no += prg_n_ctrs[counter] + fn_b_ctrs[counter];
/* "no" here is an array index, scaled to bytes later. */
- return build4 (ARRAY_REF, GCOV_TYPE_NODE, tree_ctr_tables[counter],
- fold_convert (domain_type,
- build_int_cst (NULL_TREE, no, 0)),
- TYPE_MIN_VALUE (domain_type),
- size_binop (EXACT_DIV_EXPR, TYPE_SIZE_UNIT (GCOV_TYPE_NODE),
- size_int (TYPE_ALIGN_UNIT (GCOV_TYPE_NODE))));
+ return 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
char *dup = NULL;
/* Look for everything that looks if it were produced by
- get_file_function_name_long and zero out the second part
+ get_file_function_name and zero out the second part
that may result from flag_random_seed. This is not critical
as the checksums are used only for sanity checking. */
for (i = 0; string[i]; i++)
{
+ int offset = 0;
+ if (!strncmp (string + i, "_GLOBAL__N_", 11))
+ offset = 11;
if (!strncmp (string + i, "_GLOBAL__", 9))
- for (i = i + 9; string[i]; i++)
- if (string[i]=='_')
- {
- int y;
- unsigned seed;
-
- for (y = 1; y < 9; y++)
- if (!(string[i + y] >= '0' && string[i + y] <= '9')
- && !(string[i + y] >= 'A' && string[i + y] <= 'F'))
- break;
- if (y != 9 || string[i + 9] != '_')
- continue;
- for (y = 10; y < 18; y++)
- if (!(string[i + y] >= '0' && string[i + y] <= '9')
- && !(string[i + y] >= 'A' && string[i + y] <= 'F'))
- break;
- if (y != 18)
- continue;
- if (!sscanf (string + i + 10, "%X", &seed))
- abort ();
- if (seed != crc32_string (0, flag_random_seed))
- continue;
- string = dup = xstrdup (string);
- for (y = 10; y < 18; y++)
- dup[i + y] = '0';
- break;
- }
- break;
+ offset = 9;
+
+ /* C++ namespaces do have scheme:
+ _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. */
+ if (offset)
+ {
+ for (i = i + offset; string[i]; i++)
+ if (string[i]=='_')
+ {
+ int y;
+
+ for (y = 1; y < 9; y++)
+ if (!(string[i + y] >= '0' && string[i + y] <= '9')
+ && !(string[i + y] >= 'A' && string[i + y] <= 'F'))
+ break;
+ if (y != 9 || string[i + 9] != '_')
+ continue;
+ for (y = 10; y < 18; y++)
+ if (!(string[i + y] >= '0' && string[i + y] <= '9')
+ && !(string[i + y] >= 'A' && string[i + y] <= 'F'))
+ break;
+ if (y != 18)
+ continue;
+ if (!dup)
+ string = dup = xstrdup (string);
+ for (y = 10; y < 18; y++)
+ dup[i + y] = '0';
+ }
+ break;
+ }
}
chksum = crc32_string (chksum, string);
if (bbg_file_opened > 1 && gcov_is_error ())
{
- warning ("error writing `%s'", bbg_file_name);
+ warning (0, "error writing %qs", bbg_file_name);
bbg_file_opened = -1;
}
{
struct function_list *item;
- item = xmalloc (sizeof (struct function_list));
+ item = XNEW (struct function_list);
*functions_tail = item;
functions_tail = &item->next;
tree array_type;
/* ident */
- fields = build_decl (FIELD_DECL, NULL_TREE, unsigned_intSI_type_node);
+ fields = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
/* checksum */
- field = build_decl (FIELD_DECL, NULL_TREE, unsigned_intSI_type_node);
+ field = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
TREE_CHAIN (field) = fields;
fields = field;
- array_type = build_int_cst (NULL_TREE, counters - 1, 0);
+ array_type = build_int_cst (NULL_TREE, counters - 1);
array_type = build_index_type (array_type);
- array_type = build_array_type (unsigned_type_node, array_type);
+ array_type = build_array_type (get_gcov_unsigned_t (), array_type);
/* counters */
field = build_decl (FIELD_DECL, NULL_TREE, array_type);
tree array_value = NULL_TREE;
/* ident */
- value = tree_cons (fields, build_int_cst (unsigned_intSI_type_node,
- function->ident, 0), value);
+ value = tree_cons (fields, build_int_cstu (get_gcov_unsigned_t (),
+ function->ident), value);
fields = TREE_CHAIN (fields);
/* checksum */
- value = tree_cons (fields, build_int_cst (unsigned_intSI_type_node,
- function->checksum, 0), value);
+ value = tree_cons (fields, build_int_cstu (get_gcov_unsigned_t (),
+ function->checksum), value);
fields = TREE_CHAIN (fields);
/* counters */
for (ix = 0; ix != GCOV_COUNTERS; ix++)
if (prg_ctr_mask & (1 << ix))
{
- tree counters = build_int_cst (unsigned_type_node,
- function->n_ctrs[ix], 0);
+ tree counters = build_int_cstu (get_gcov_unsigned_t (),
+ function->n_ctrs[ix]);
array_value = tree_cons (NULL_TREE, counters, array_value);
}
- array_value = build_constructor (TREE_TYPE (fields), nreverse (array_value));
+ /* FIXME: use build_constructor directly. */
+ array_value = build_constructor_from_list (TREE_TYPE (fields),
+ nreverse (array_value));
value = tree_cons (fields, array_value, value);
- value = build_constructor (type, nreverse (value));
+ /* FIXME: use build_constructor directly. */
+ value = build_constructor_from_list (type, nreverse (value));
return value;
}
{
tree type = lang_hooks.types.make_type (RECORD_TYPE);
tree field, fields = NULL_TREE;
- tree gcov_ptr_type = build_pointer_type (GCOV_TYPE_NODE);
+ tree gcov_ptr_type = build_pointer_type (get_gcov_type ());
tree gcov_merge_fn_type;
/* counters */
- field = build_decl (FIELD_DECL, NULL_TREE, unsigned_intSI_type_node);
+ field = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
TREE_CHAIN (field) = fields;
fields = field;
/* merge */
gcov_merge_fn_type =
build_function_type_list (void_type_node,
- gcov_ptr_type, unsigned_type_node,
+ gcov_ptr_type, get_gcov_unsigned_t (),
NULL_TREE);
field = build_decl (FIELD_DECL, NULL_TREE,
build_pointer_type (gcov_merge_fn_type));
/* counters */
value = tree_cons (fields,
- build_int_cst (unsigned_intSI_type_node,
- prg_n_ctrs[counter], 0),
+ build_int_cstu (get_gcov_unsigned_t (),
+ prg_n_ctrs[counter]),
value);
fields = TREE_CHAIN (fields);
{
tree array_type;
- array_type = build_int_cst (unsigned_type_node,
- prg_n_ctrs[counter] - 1, 0);
+ array_type = build_int_cstu (get_gcov_unsigned_t (),
+ prg_n_ctrs[counter] - 1);
array_type = build_index_type (array_type);
array_type = build_array_type (TREE_TYPE (TREE_TYPE (fields)),
array_type);
build1 (ADDR_EXPR, TREE_TYPE (fields), fn),
value);
- value = build_constructor (type, nreverse (value));
+ /* FIXME: use build_constructor directly. */
+ value = build_constructor_from_list (type, nreverse (value));
return value;
}
const_type = build_qualified_type (type, TYPE_QUAL_CONST);
/* Version ident */
- field = build_decl (FIELD_DECL, NULL_TREE, unsigned_intSI_type_node);
+ field = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
TREE_CHAIN (field) = fields;
fields = field;
- value = tree_cons (field, build_int_cst (unsigned_intSI_type_node,
- GCOV_VERSION, 0), value);
+ 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));
value = tree_cons (field, null_pointer_node, value);
/* stamp */
- field = build_decl (FIELD_DECL, NULL_TREE, unsigned_intSI_type_node);
+ field = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
TREE_CHAIN (field) = fields;
fields = field;
- value = tree_cons (field, build_int_cst (unsigned_intSI_type_node,
- local_tick, 0), value);
+ value = tree_cons (field, build_int_cstu (TREE_TYPE (field), local_tick),
+ value);
/* Filename */
string_type = build_pointer_type (build_qualified_type (char_type_node,
free (filename);
TREE_TYPE (filename_string) = build_array_type
(char_type_node, build_index_type
- (build_int_cst (NULL_TREE, filename_len, 0)));
+ (build_int_cst (NULL_TREE, filename_len)));
value = tree_cons (field, build1 (ADDR_EXPR, string_type, filename_string),
value);
{
tree array_type;
- array_type = build_index_type (build_int_cst (NULL_TREE,
- n_fns - 1, 0));
+ array_type = build_index_type (build_int_cst (NULL_TREE, n_fns - 1));
array_type = build_array_type (fn_info_type, array_type);
- fn_info_value = build_constructor (array_type, nreverse (fn_info_value));
+ /* FIXME: use build_constructor directly. */
+ fn_info_value = build_constructor_from_list (array_type,
+ nreverse (fn_info_value));
fn_info_value = build1 (ADDR_EXPR, fn_info_ptr_type, fn_info_value);
}
else
fn_info_value = null_pointer_node;
/* number of functions */
- field = build_decl (FIELD_DECL, NULL_TREE, unsigned_type_node);
+ field = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
TREE_CHAIN (field) = fields;
fields = field;
value = tree_cons (field,
- build_int_cst (unsigned_type_node, n_fns, 0),
+ build_int_cstu (get_gcov_unsigned_t (), n_fns),
value);
/* fn_info table */
value = tree_cons (field, fn_info_value, value);
/* counter_mask */
- field = build_decl (FIELD_DECL, NULL_TREE, unsigned_type_node);
+ field = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
TREE_CHAIN (field) = fields;
fields = field;
value = tree_cons (field,
- build_int_cst (unsigned_type_node, prg_ctr_mask, 0),
+ build_int_cstu (get_gcov_unsigned_t (), prg_ctr_mask),
value);
/* counters */
ctr_info_type = build_ctr_info_type ();
ctr_info_ary_type = build_index_type (build_int_cst (NULL_TREE,
- n_ctr_types, 0));
+ n_ctr_types));
ctr_info_ary_type = build_array_type (ctr_info_type, ctr_info_ary_type);
for (ix = 0; ix != GCOV_COUNTERS; ix++)
if (prg_ctr_mask & (1 << ix))
ctr_info_value = tree_cons (NULL_TREE,
build_ctr_info_value (ix, ctr_info_type),
ctr_info_value);
- ctr_info_value = build_constructor (ctr_info_ary_type,
- nreverse (ctr_info_value));
+ /* FIXME: use build_constructor directly. */
+ 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);
TREE_CHAIN (field) = fields;
finish_builtin_struct (type, "__gcov_info", fields, NULL_TREE);
- value = build_constructor (type, nreverse (value));
+ /* FIXME: use build_constructor directly. */
+ value = build_constructor_from_list (type, nreverse (value));
return value;
}
/* Generate a call to __gcov_init(&gcov_info). */
body = NULL;
t = build_fold_addr_expr (gcov_info);
- t = tree_cons (NULL, t, NULL);
- t = build_function_call_expr (gcov_init, t);
+ t = build_call_expr (gcov_init, 1, t);
append_to_statement_list (t, &body);
/* Generate a constructor to run it. */
int len = strlen (filename);
/* Name of da file. */
- da_file_name = xmalloc (len + strlen (GCOV_DATA_SUFFIX) + 1);
+ da_file_name = XNEWVEC (char, len + strlen (GCOV_DATA_SUFFIX) + 1);
strcpy (da_file_name, filename);
strcat (da_file_name, GCOV_DATA_SUFFIX);
/* Name of bbg file. */
- bbg_file_name = xmalloc (len + strlen (GCOV_NOTE_SUFFIX) + 1);
+ bbg_file_name = XNEWVEC (char, len + strlen (GCOV_NOTE_SUFFIX) + 1);
strcpy (bbg_file_name, filename);
strcat (bbg_file_name, GCOV_NOTE_SUFFIX);
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