/* Read and write coverage files, and associated functionality.
Copyright (C) 1990, 1991, 1992, 1993, 1994, 1996, 1997, 1998, 1999,
- 2000, 2001, 2003, 2004, 2005, 2007 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.
#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);
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
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;
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)
return 0;
if (!bbg_function_announced)
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;
field = build_decl (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);
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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