/* Read and write coverage files, and associated functionality.
Copyright (C) 1990, 1991, 1992, 1993, 1994, 1996, 1997, 1998, 1999,
- 2000, 2001, 2003 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
#include "function.h"
#include "toplev.h"
#include "ggc.h"
-#include "target.h"
#include "coverage.h"
-#include "libfuncs.h"
#include "langhooks.h"
#include "hashtab.h"
+#include "tree-iterator.h"
+#include "cgraph.h"
+#include "tree-pass.h"
#include "gcov-io.c"
struct function_list
{
- struct function_list *next; /* next function */
- const char *name; /* function name */
- unsigned cfg_checksum; /* function checksum */
- unsigned n_counter_sections; /* number of counter sections */
- struct gcov_counter_section counter_sections[MAX_COUNTER_SECTIONS];
- /* the sections */
+ struct function_list *next; /* next function */
+ unsigned ident; /* function ident */
+ unsigned checksum; /* function checksum */
+ unsigned n_ctrs[GCOV_COUNTERS];/* number of counters. */
};
/* Counts information for a function. */
typedef struct counts_entry
{
/* We hash by */
- char *function_name;
- unsigned section;
-
+ unsigned ident;
+ unsigned ctr;
+
/* Store */
unsigned checksum;
- unsigned n_counts;
gcov_type *counts;
- unsigned merged;
- gcov_type max_counter;
- gcov_type max_counter_sum;
+ struct gcov_ctr_summary summary;
/* Workspace */
struct counts_entry *chain;
-
+
} counts_entry_t;
static struct function_list *functions_head = 0;
static struct function_list **functions_tail = &functions_head;
+static unsigned no_coverage = 0;
-/* Instantiate the profile info structure. */
+/* Cumulative counter information for whole program. */
+static unsigned prg_ctr_mask; /* Mask of counter types generated. */
+static unsigned prg_n_ctrs[GCOV_COUNTERS]; /* Total counters allocated. */
-struct profile_info profile_info;
+/* Counter information for current function. */
+static unsigned fn_ctr_mask; /* Mask of counters used. */
+static unsigned fn_n_ctrs[GCOV_COUNTERS]; /* Counters allocated. */
+static unsigned fn_b_ctrs[GCOV_COUNTERS]; /* Allocation base. */
/* Name of the output file for coverage output file. */
static char *bbg_file_name;
/* Hash table of count data. */
static htab_t counts_hash = NULL;
-/* The name of the count table. Used by the edge profiling code. */
-static GTY(()) rtx profiler_label;
+/* Trees representing the counter table arrays. */
+static GTY(()) tree tree_ctr_tables[GCOV_COUNTERS];
+
+/* The names of the counter tables. Not used if we're
+ generating counters at tree level. */
+static GTY(()) rtx ctr_labels[GCOV_COUNTERS];
+
+/* The names of merge functions for counters. */
+static const char *const ctr_merge_functions[GCOV_COUNTERS] = GCOV_MERGE_FUNCTIONS;
+static const char *const ctr_names[GCOV_COUNTERS] = GCOV_COUNTER_NAMES;
/* Forward declarations. */
-static hashval_t htab_counts_entry_hash PARAMS ((const void *));
-static int htab_counts_entry_eq PARAMS ((const void *, const void *));
-static void htab_counts_entry_del PARAMS ((void *));
-static void read_counts_file PARAMS ((void));
-static unsigned compute_checksum PARAMS ((void));
-static unsigned checksum_string PARAMS ((unsigned, const char *));
-static void set_purpose PARAMS ((tree, tree));
-static rtx label_for_tag PARAMS ((unsigned));
-static tree build_counter_section_fields PARAMS ((void));
-static tree build_counter_section_value PARAMS ((unsigned, unsigned));
-static tree build_counter_section_data_fields PARAMS ((void));
-static tree build_counter_section_data_value PARAMS ((unsigned, unsigned));
-static tree build_function_info_fields PARAMS ((void));
-static tree build_function_info_value PARAMS ((struct function_list *));
-static tree build_gcov_info_fields PARAMS ((tree));
-static tree build_gcov_info_value PARAMS ((void));
-static void create_coverage PARAMS ((void));
+static hashval_t htab_counts_entry_hash (const void *);
+static int htab_counts_entry_eq (const void *, const void *);
+static void htab_counts_entry_del (void *);
+static void read_counts_file (void);
+static unsigned compute_checksum (void);
+static unsigned coverage_checksum_string (unsigned, const char *);
+static tree build_fn_info_type (unsigned);
+static tree build_fn_info_value (const struct function_list *, tree);
+static tree build_ctr_info_type (void);
+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 (of)
- const void *of;
+htab_counts_entry_hash (const void *of)
{
const counts_entry_t *entry = of;
- return htab_hash_string (entry->function_name) ^ entry->section;
+ return entry->ident * GCOV_COUNTERS + entry->ctr;
}
static int
-htab_counts_entry_eq (of1, of2)
- const void *of1;
- const void *of2;
+htab_counts_entry_eq (const void *of1, const void *of2)
{
const counts_entry_t *entry1 = of1;
const counts_entry_t *entry2 = of2;
- return !strcmp (entry1->function_name, entry2->function_name)
- && entry1->section == entry2->section;
+ return entry1->ident == entry2->ident && entry1->ctr == entry2->ctr;
}
static void
-htab_counts_entry_del (of)
- void *of;
+htab_counts_entry_del (void *of)
{
counts_entry_t *entry = of;
- free (entry->function_name);
free (entry->counts);
free (entry);
}
/* Read in the counts file, if available. */
static void
-read_counts_file ()
+read_counts_file (void)
{
- char *function_name_buffer = NULL;
- unsigned version, ix, checksum = -1;
+ gcov_unsigned_t fn_ident = 0;
+ gcov_unsigned_t checksum = -1;
counts_entry_t *summaried = NULL;
unsigned seen_summary = 0;
-
+ gcov_unsigned_t tag;
+ int is_error = 0;
+
if (!gcov_open (da_file_name, 1))
return;
-
- if (gcov_read_unsigned () != GCOV_DATA_MAGIC)
+
+ 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;
}
- else if ((version = gcov_read_unsigned ()) != GCOV_VERSION)
+ else if ((tag = gcov_read_unsigned ()) != GCOV_VERSION)
{
char v[4], e[4];
- unsigned required = GCOV_VERSION;
-
- for (ix = 4; ix--; required >>= 8, version >>= 8)
- {
- v[ix] = version;
- e[ix] = required;
- }
- warning ("`%s' is version `%.4s', expected version `%.4s'",
- da_file_name, v, e);
+
+ GCOV_UNSIGNED2STRING (v, tag);
+ GCOV_UNSIGNED2STRING (e, GCOV_VERSION);
+
+ warning (0, "%qs is version %q.*s, expected version %q.*s",
+ da_file_name, 4, v, 4, e);
gcov_close ();
return;
}
+
+ /* 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);
- while (!gcov_is_eof ())
+ while ((tag = gcov_read_unsigned ()))
{
- unsigned tag, length;
- unsigned long offset;
- int error;
-
- tag = gcov_read_unsigned ();
+ gcov_unsigned_t length;
+ gcov_position_t offset;
+
length = gcov_read_unsigned ();
offset = gcov_position ();
if (tag == GCOV_TAG_FUNCTION)
{
- const char *string = gcov_read_string ();
- free (function_name_buffer);
- function_name_buffer = string ? xstrdup (string) : NULL;
+ fn_ident = gcov_read_unsigned ();
checksum = gcov_read_unsigned ();
if (seen_summary)
{
new function begins a new set of program runs. We
must unlink the summaried chain. */
counts_entry_t *entry, *chain;
-
+
for (entry = summaried; entry; entry = chain)
{
chain = entry->chain;
-
- entry->max_counter_sum += entry->max_counter;
entry->chain = NULL;
}
summaried = NULL;
{
counts_entry_t *entry;
struct gcov_summary summary;
-
+
gcov_read_summary (&summary);
seen_summary = 1;
for (entry = summaried; entry; entry = entry->chain)
{
- entry->merged += summary.runs;
- if (entry->max_counter < summary.arc_sum_max)
- entry->max_counter = summary.arc_sum_max;
+ struct gcov_ctr_summary *csum = &summary.ctrs[entry->ctr];
+
+ entry->summary.runs += csum->runs;
+ entry->summary.sum_all += csum->sum_all;
+ if (entry->summary.run_max < csum->run_max)
+ entry->summary.run_max = csum->run_max;
+ entry->summary.sum_max += csum->sum_max;
}
}
- else if (GCOV_TAG_IS_SUBTAG (GCOV_TAG_FUNCTION, tag)
- && function_name_buffer)
+ else if (GCOV_TAG_IS_COUNTER (tag) && fn_ident)
{
counts_entry_t **slot, *entry, elt;
- unsigned n_counts = length / 8;
+ unsigned n_counts = GCOV_TAG_COUNTER_NUM (length);
unsigned ix;
- elt.function_name = function_name_buffer;
- elt.section = tag;
+ elt.ident = fn_ident;
+ elt.ctr = GCOV_COUNTER_FOR_TAG (tag);
slot = (counts_entry_t **) htab_find_slot
(counts_hash, &elt, INSERT);
entry = *slot;
if (!entry)
{
- *slot = entry = xmalloc (sizeof (counts_entry_t));
- entry->function_name = xstrdup (function_name_buffer);
- entry->section = tag;
+ *slot = entry = XCNEW (counts_entry_t);
+ entry->ident = elt.ident;
+ entry->ctr = elt.ctr;
entry->checksum = checksum;
- entry->n_counts = n_counts;
- entry->counts = xcalloc (n_counts, sizeof (gcov_type));
+ entry->summary.num = n_counts;
+ entry->counts = XCNEWVEC (gcov_type, n_counts);
+ }
+ else if (entry->checksum != checksum)
+ {
+ 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);
+ break;
}
- else if (entry->checksum != checksum || entry->n_counts != n_counts)
+ else if (entry->summary.num != n_counts)
{
- warning ("profile mismatch for `%s'", function_name_buffer);
+ 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);
break;
}
-
- /* This should always be true for a just allocated entry,
- and always false for an existing one. Check this way, in
- case the gcov file is corrupt. */
- if (!entry->chain || summaried != entry)
+ else if (elt.ctr >= GCOV_COUNTERS_SUMMABLE)
+ {
+ error ("cannot merge separate %s counters for function %u",
+ ctr_names[elt.ctr], fn_ident);
+ goto skip_merge;
+ }
+
+ if (elt.ctr < GCOV_COUNTERS_SUMMABLE
+ /* This should always be true for a just allocated entry,
+ and always false for an existing one. Check this way, in
+ case the gcov file is corrupt. */
+ && (!entry->chain || summaried != entry))
{
entry->chain = summaried;
summaried = entry;
}
for (ix = 0; ix != n_counts; ix++)
entry->counts[ix] += gcov_read_counter ();
+ skip_merge:;
}
- gcov_seek (offset, length);
- if ((error = gcov_is_error ()))
+ gcov_sync (offset, length);
+ if ((is_error = gcov_is_error ()))
{
- warning (error < 0 ? "`%s' has overflowed" : "`%s' is corrupted",
- da_file_name);
+ error (is_error < 0 ? "%qs has overflowed" : "%qs is corrupted",
+ da_file_name);
htab_delete (counts_hash);
break;
}
}
- free (function_name_buffer);
gcov_close ();
}
/* Returns the counters for a particular tag. */
gcov_type *
-get_coverage_counts (unsigned tag, unsigned expected)
+get_coverage_counts (unsigned counter, unsigned expected,
+ const struct gcov_ctr_summary **summary)
{
counts_entry_t *entry, elt;
+ gcov_unsigned_t checksum = -1;
- profile_info.max_counter_in_program = 0;
- profile_info.count_profiles_merged = 0;
-
- /* No hash table, no counts. */
+ /* No hash table, no counts. */
if (!counts_hash)
{
static int warned = 0;
if (!warned++)
- warning ("file %s not found, execution counts assumed to be zero",
- da_file_name);
+ inform ((flag_guess_branch_prob
+ ? "file %s not found, execution counts estimated"
+ : "file %s not found, execution counts assumed to be zero"),
+ da_file_name);
return NULL;
}
- elt.function_name
- = (char *) IDENTIFIER_POINTER
- (DECL_ASSEMBLER_NAME (current_function_decl));
- elt.section = tag;
+ elt.ident = current_function_funcdef_no + 1;
+ elt.ctr = counter;
entry = htab_find (counts_hash, &elt);
if (!entry)
{
- warning ("No profile for function '%s' found.", elt.function_name);
- return 0;
+ warning (0, "no coverage for function %qs found", IDENTIFIER_POINTER
+ (DECL_ASSEMBLER_NAME (current_function_decl)));
+ return NULL;
}
-
- if (expected != entry->n_counts
- || compute_checksum () != entry->checksum)
+
+ checksum = compute_checksum ();
+ if (entry->checksum != checksum
+ || entry->summary.num != expected)
{
- warning ("profile mismatch for `%s'", elt.function_name);
+ 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;
}
- profile_info.count_profiles_merged = entry->merged;
- profile_info.max_counter_in_program = entry->max_counter_sum;
+ if (summary)
+ *summary = &entry->summary;
return entry->counts;
}
+
+/* Allocate NUM counters of type COUNTER. Returns nonzero if the
+ allocation succeeded. */
+
+int
+coverage_counter_alloc (unsigned counter, unsigned num)
+{
+ if (no_coverage)
+ return 0;
+
+ if (!num)
+ return 1;
+
+ if (!tree_ctr_tables[counter])
+ {
+ /* 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 gcov_type_node = get_gcov_type ();
+ 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);
+ 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;
+ fn_ctr_mask |= 1 << counter;
+ return 1;
+}
+
+/* Generate a tree to access COUNTER NO. */
+
+tree
+tree_coverage_counter_ref (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];
+
+ /* "no" here is an array index, scaled to bytes later. */
+ 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];
+
+ /* "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. */
+ checksum. */
static unsigned
-checksum_string (unsigned chksum, const char *string)
+coverage_checksum_string (unsigned chksum, const char *string)
{
- do
+ int i;
+ char *dup = NULL;
+
+ /* Look for everything that looks if it were produced by
+ 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++)
{
- unsigned value = *string << 24;
- unsigned ix;
-
- for (ix = 8; ix--; value <<= 1)
+ int offset = 0;
+ if (!strncmp (string + i, "_GLOBAL__N_", 11))
+ offset = 11;
+ if (!strncmp (string + i, "_GLOBAL__", 9))
+ 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)
{
- unsigned feedback;
-
- feedback = (value ^ chksum) & 0x80000000 ? 0x04c11db7 : 0;
- chksum <<= 1;
- chksum ^= feedback;
+ 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;
}
}
- while (*string++);
-
+
+ chksum = crc32_string (chksum, string);
+ if (dup)
+ free (dup);
+
return chksum;
}
/* Compute checksum for the current function. We generate a CRC32. */
static unsigned
-compute_checksum ()
+compute_checksum (void)
{
- unsigned chksum = DECL_SOURCE_LINE (current_function_decl);
+ expanded_location xloc
+ = expand_location (DECL_SOURCE_LOCATION (current_function_decl));
+ unsigned chksum = xloc.line;
- chksum = checksum_string (chksum, DECL_SOURCE_FILE (current_function_decl));
- chksum = checksum_string
+ chksum = coverage_checksum_string (chksum, xloc.file);
+ chksum = coverage_checksum_string
(chksum, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl)));
return chksum;
\f
/* Begin output to the graph file for the current function.
Opens the output file, if not already done. Writes the
- function header, if not already done. Returns non-zero if data
+ function header, if not already done. Returns nonzero if data
should be output. */
int
-coverage_begin_output ()
+coverage_begin_output (void)
{
+ /* 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)
{
- const char *file = DECL_SOURCE_FILE (current_function_decl);
- unsigned line = DECL_SOURCE_LINE (current_function_decl);
+ expanded_location xloc
+ = expand_location (DECL_SOURCE_LOCATION (current_function_decl));
unsigned long offset;
-
+
if (!bbg_file_opened)
{
if (!gcov_open (bbg_file_name, -1))
error ("cannot open %s", bbg_file_name);
else
{
- gcov_write_unsigned (GCOV_GRAPH_MAGIC);
+ gcov_write_unsigned (GCOV_NOTE_MAGIC);
gcov_write_unsigned (GCOV_VERSION);
+ gcov_write_unsigned (local_tick);
}
bbg_file_opened = 1;
}
-
+
/* Announce function */
offset = gcov_write_tag (GCOV_TAG_FUNCTION);
+ gcov_write_unsigned (current_function_funcdef_no + 1);
+ gcov_write_unsigned (compute_checksum ());
gcov_write_string (IDENTIFIER_POINTER
(DECL_ASSEMBLER_NAME (current_function_decl)));
- gcov_write_unsigned (compute_checksum ());
- gcov_write_string (file);
- gcov_write_unsigned (line);
+ gcov_write_string (xloc.file);
+ gcov_write_unsigned (xloc.line);
gcov_write_length (offset);
bbg_function_announced = 1;
error has occurred. Save function coverage counts. */
void
-coverage_end_function ()
+coverage_end_function (void)
{
unsigned i;
-
+
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;
}
-
- for (i = 0; i != profile_info.n_sections; i++)
- if (profile_info.section_info[i].n_counters_now)
- {
- struct function_list *item;
-
- /* ??? Probably should re-use the existing struct function. */
- item = xmalloc (sizeof (struct function_list));
-
- *functions_tail = item;
- functions_tail = &item->next;
-
- item->next = 0;
- item->name = xstrdup (IDENTIFIER_POINTER
- (DECL_ASSEMBLER_NAME (current_function_decl)));
- item->cfg_checksum = compute_checksum ();
- item->n_counter_sections = 0;
- for (i = 0; i < profile_info.n_sections; i++)
- if (profile_info.section_info[i].n_counters_now)
- {
- item->counter_sections[item->n_counter_sections].tag =
- profile_info.section_info[i].tag;
- item->counter_sections[item->n_counter_sections].n_counters =
- profile_info.section_info[i].n_counters_now;
- item->n_counter_sections++;
- profile_info.section_info[i].n_counters
- += profile_info.section_info[i].n_counters_now;
- profile_info.section_info[i].n_counters_now = 0;
- }
- break;
- }
- bbg_function_announced = 0;
-}
-
-/* Set FIELDS as purpose to VALUE. */
-static void
-set_purpose (value, fields)
- tree value;
- tree fields;
-{
- tree act_field, act_value;
-
- for (act_field = fields, act_value = value;
- act_field;
- act_field = TREE_CHAIN (act_field), act_value = TREE_CHAIN (act_value))
- TREE_PURPOSE (act_value) = act_field;
-}
-/* Returns label for base of counters inside TAG section. */
-static rtx
-label_for_tag (tag)
- unsigned tag;
-{
- switch (tag)
+ if (fn_ctr_mask)
{
- case GCOV_TAG_ARC_COUNTS:
- return profiler_label;
- default:
- abort ();
- }
-}
+ struct function_list *item;
-/* Creates fields of struct counter_section (in gcov-io.h). */
-static tree
-build_counter_section_fields ()
-{
- tree field, fields;
+ item = XNEW (struct function_list);
- /* tag */
- fields = build_decl (FIELD_DECL, NULL_TREE, unsigned_type_node);
+ *functions_tail = item;
+ functions_tail = &item->next;
- /* n_counters */
- field = build_decl (FIELD_DECL, NULL_TREE, unsigned_type_node);
- TREE_CHAIN (field) = fields;
- fields = field;
-
- return fields;
+ item->next = 0;
+ item->ident = current_function_funcdef_no + 1;
+ item->checksum = compute_checksum ();
+ for (i = 0; i != GCOV_COUNTERS; i++)
+ {
+ item->n_ctrs[i] = fn_n_ctrs[i];
+ prg_n_ctrs[i] += fn_n_ctrs[i];
+ fn_n_ctrs[i] = fn_b_ctrs[i] = 0;
+ }
+ prg_ctr_mask |= fn_ctr_mask;
+ fn_ctr_mask = 0;
+ }
+ bbg_function_announced = 0;
}
-/* Creates value of struct counter_section (in gcov-io.h). */
-static tree
-build_counter_section_value (tag, n_counters)
- unsigned tag;
- unsigned n_counters;
-{
- tree value = NULL_TREE;
+/* Creates the gcov_fn_info RECORD_TYPE. */
- /* tag */
- value = tree_cons (NULL_TREE,
- convert (unsigned_type_node,
- build_int_2 (tag, 0)),
- value);
-
- /* n_counters */
- value = tree_cons (NULL_TREE,
- convert (unsigned_type_node,
- build_int_2 (n_counters, 0)),
- value);
-
- return value;
-}
-
-/* Creates fields of struct counter_section_data (in gcov-io.h). */
static tree
-build_counter_section_data_fields ()
+build_fn_info_type (unsigned int counters)
{
- tree field, fields, gcov_type, gcov_ptr_type;
-
- gcov_type = make_signed_type (GCOV_TYPE_SIZE);
- gcov_ptr_type =
- build_pointer_type (build_qualified_type (gcov_type,
- TYPE_QUAL_CONST));
+ tree type = lang_hooks.types.make_type (RECORD_TYPE);
+ tree field, fields;
+ tree array_type;
- /* tag */
- fields = build_decl (FIELD_DECL, NULL_TREE, unsigned_type_node);
+ /* ident */
+ fields = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
- /* n_counters */
- field = build_decl (FIELD_DECL, NULL_TREE, unsigned_type_node);
+ /* checksum */
+ 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);
+ array_type = build_index_type (array_type);
+ array_type = build_array_type (get_gcov_unsigned_t (), array_type);
+
/* counters */
- field = build_decl (FIELD_DECL, NULL_TREE, gcov_ptr_type);
+ field = build_decl (FIELD_DECL, NULL_TREE, array_type);
TREE_CHAIN (field) = fields;
fields = field;
- return fields;
+ finish_builtin_struct (type, "__gcov_fn_info", fields, NULL_TREE);
+
+ return type;
}
-/* Creates value of struct counter_section_data (in gcov-io.h). */
+/* Creates a CONSTRUCTOR for a gcov_fn_info. FUNCTION is
+ the function being processed and TYPE is the gcov_fn_info
+ RECORD_TYPE. */
+
static tree
-build_counter_section_data_value (tag, n_counters)
- unsigned tag;
- unsigned n_counters;
+build_fn_info_value (const struct function_list *function, tree type)
{
- tree value = NULL_TREE, counts_table, gcov_type, gcov_ptr_type;
+ tree value = NULL_TREE;
+ tree fields = TYPE_FIELDS (type);
+ unsigned ix;
+ tree array_value = NULL_TREE;
- gcov_type = make_signed_type (GCOV_TYPE_SIZE);
- gcov_ptr_type
- = build_pointer_type (build_qualified_type
- (gcov_type, TYPE_QUAL_CONST));
+ /* ident */
+ value = tree_cons (fields, build_int_cstu (get_gcov_unsigned_t (),
+ function->ident), value);
+ fields = TREE_CHAIN (fields);
- /* tag */
- value = tree_cons (NULL_TREE,
- convert (unsigned_type_node,
- build_int_2 (tag, 0)),
- value);
-
- /* n_counters */
- value = tree_cons (NULL_TREE,
- convert (unsigned_type_node,
- build_int_2 (n_counters, 0)),
- value);
+ /* checksum */
+ value = tree_cons (fields, build_int_cstu (get_gcov_unsigned_t (),
+ function->checksum), value);
+ fields = TREE_CHAIN (fields);
/* counters */
- if (n_counters)
- {
- tree gcov_type_array_type =
- build_array_type (gcov_type,
- build_index_type (build_int_2 (n_counters - 1,
- 0)));
- counts_table =
- build (VAR_DECL, gcov_type_array_type, NULL_TREE, NULL_TREE);
- TREE_STATIC (counts_table) = 1;
- DECL_NAME (counts_table) = get_identifier (XSTR (label_for_tag (tag), 0));
- assemble_variable (counts_table, 0, 0, 0);
- counts_table = build1 (ADDR_EXPR, gcov_ptr_type, counts_table);
- }
- else
- counts_table = null_pointer_node;
+ for (ix = 0; ix != GCOV_COUNTERS; ix++)
+ if (prg_ctr_mask & (1 << ix))
+ {
+ tree counters = build_int_cstu (get_gcov_unsigned_t (),
+ function->n_ctrs[ix]);
- value = tree_cons (NULL_TREE, counts_table, value);
+ array_value = tree_cons (NULL_TREE, counters, 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);
+
+ /* FIXME: use build_constructor directly. */
+ value = build_constructor_from_list (type, nreverse (value));
return value;
}
-/* Creates fields for struct function_info type (in gcov-io.h). */
+/* Creates the gcov_ctr_info RECORD_TYPE. */
+
static tree
-build_function_info_fields ()
+build_ctr_info_type (void)
{
- tree field, fields, counter_section_fields, counter_section_type;
- tree counter_sections_ptr_type;
- tree string_type =
- build_pointer_type (build_qualified_type (char_type_node,
- TYPE_QUAL_CONST));
- /* name */
- fields = build_decl (FIELD_DECL, NULL_TREE, string_type);
+ tree type = lang_hooks.types.make_type (RECORD_TYPE);
+ tree field, fields = NULL_TREE;
+ tree gcov_ptr_type = build_pointer_type (get_gcov_type ());
+ tree gcov_merge_fn_type;
- /* checksum */
- field = build_decl (FIELD_DECL, NULL_TREE, unsigned_type_node);
+ /* counters */
+ field = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
TREE_CHAIN (field) = fields;
fields = field;
- /* n_counter_sections */
- field = build_decl (FIELD_DECL, NULL_TREE, unsigned_type_node);
+ /* values */
+ field = build_decl (FIELD_DECL, NULL_TREE, gcov_ptr_type);
TREE_CHAIN (field) = fields;
fields = field;
- /* counter_sections */
- counter_section_fields = build_counter_section_fields ();
- counter_section_type = (*lang_hooks.types.make_type) (RECORD_TYPE);
- finish_builtin_struct (counter_section_type, "__counter_section",
- counter_section_fields, NULL_TREE);
- counter_sections_ptr_type =
- build_pointer_type
- (build_qualified_type (counter_section_type,
- TYPE_QUAL_CONST));
- field = build_decl (FIELD_DECL, NULL_TREE, counter_sections_ptr_type);
+ /* merge */
+ gcov_merge_fn_type =
+ build_function_type_list (void_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));
TREE_CHAIN (field) = fields;
fields = field;
- return fields;
+ finish_builtin_struct (type, "__gcov_ctr_info", fields, NULL_TREE);
+
+ return type;
}
-/* Creates value for struct function_info (in gcov-io.h). */
+/* Creates a CONSTRUCTOR for a gcov_ctr_info. COUNTER is
+ the counter being processed and TYPE is the gcov_ctr_info
+ RECORD_TYPE. */
+
static tree
-build_function_info_value (function)
- struct function_list *function;
+build_ctr_info_value (unsigned int counter, tree type)
{
tree value = NULL_TREE;
- size_t name_len = strlen (function->name);
- tree fname = build_string (name_len + 1, function->name);
- tree string_type =
- build_pointer_type (build_qualified_type (char_type_node,
- TYPE_QUAL_CONST));
- tree counter_section_fields, counter_section_type, counter_sections_value;
- tree counter_sections_ptr_type, counter_sections_array_type;
- unsigned i;
-
- /* name */
- TREE_TYPE (fname) =
- build_array_type (char_type_node,
- build_index_type (build_int_2 (name_len, 0)));
- value = tree_cons (NULL_TREE,
- build1 (ADDR_EXPR,
- string_type,
- fname),
- value);
+ tree fields = TYPE_FIELDS (type);
+ tree fn;
- /* checksum */
- value = tree_cons (NULL_TREE,
- convert (unsigned_type_node,
- build_int_2 (function->cfg_checksum, 0)),
+ /* counters */
+ value = tree_cons (fields,
+ build_int_cstu (get_gcov_unsigned_t (),
+ prg_n_ctrs[counter]),
value);
+ fields = TREE_CHAIN (fields);
- /* n_counter_sections */
-
- value = tree_cons (NULL_TREE,
- convert (unsigned_type_node,
- build_int_2 (function->n_counter_sections, 0)),
- value);
-
- /* counter_sections */
- counter_section_fields = build_counter_section_fields ();
- counter_section_type = (*lang_hooks.types.make_type) (RECORD_TYPE);
- counter_sections_ptr_type =
- build_pointer_type
- (build_qualified_type (counter_section_type,
- TYPE_QUAL_CONST));
- counter_sections_array_type =
- build_array_type (counter_section_type,
- build_index_type (
- build_int_2 (function->n_counter_sections - 1,
- 0)));
-
- counter_sections_value = NULL_TREE;
- for (i = 0; i < function->n_counter_sections; i++)
+ if (prg_n_ctrs[counter])
{
- tree counter_section_value
- = build_counter_section_value (function->counter_sections[i].tag,
- function->counter_sections[i].n_counters);
- set_purpose (counter_section_value, counter_section_fields);
- counter_sections_value =
- tree_cons (NULL_TREE,
- build_constructor (counter_section_type,
- nreverse (counter_section_value)),
- counter_sections_value);
- }
- finish_builtin_struct (counter_section_type, "__counter_section",
- counter_section_fields, NULL_TREE);
+ tree array_type;
- if (function->n_counter_sections)
- {
- counter_sections_value =
- build_constructor (counter_sections_array_type,
- nreverse (counter_sections_value)),
- counter_sections_value = build1 (ADDR_EXPR,
- counter_sections_ptr_type,
- counter_sections_value);
+ 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);
+
+ 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);
+
+ value = tree_cons (fields,
+ build1 (ADDR_EXPR, TREE_TYPE (fields),
+ tree_ctr_tables[counter]),
+ value);
}
else
- counter_sections_value = null_pointer_node;
+ value = tree_cons (fields, null_pointer_node, value);
+ fields = TREE_CHAIN (fields);
+
+ fn = build_decl (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;
+ value = tree_cons (fields,
+ build1 (ADDR_EXPR, TREE_TYPE (fields), fn),
+ value);
- value = tree_cons (NULL_TREE, counter_sections_value, value);
+ /* FIXME: use build_constructor directly. */
+ value = build_constructor_from_list (type, nreverse (value));
return value;
}
-/* Creates fields of struct gcov_info type (in gcov-io.h). */
+/* Creates the gcov_info RECORD_TYPE and initializer for it. Returns a
+ CONSTRUCTOR. */
+
static tree
-build_gcov_info_fields (gcov_info_type)
- tree gcov_info_type;
+build_gcov_info (void)
{
- tree field, fields;
- char *filename;
- int filename_len;
- tree string_type =
- build_pointer_type (build_qualified_type (char_type_node,
- TYPE_QUAL_CONST));
- tree function_info_fields, function_info_type, function_info_ptr_type;
- tree counter_section_data_fields, counter_section_data_type;
- tree counter_section_data_ptr_type;
+ unsigned n_ctr_types, ix;
+ tree type, const_type;
+ tree fn_info_type, fn_info_value = NULL_TREE;
+ tree fn_info_ptr_type;
+ tree ctr_info_type, ctr_info_ary_type, ctr_info_value = NULL_TREE;
+ tree field, fields = NULL_TREE;
+ tree value = NULL_TREE;
+ tree filename_string;
+ int da_file_name_len;
+ unsigned n_fns;
+ const struct function_list *fn;
+ tree string_type;
- /* Version ident */
- fields = build_decl (FIELD_DECL, NULL_TREE, long_unsigned_type_node);
+ /* Count the number of active counters. */
+ for (n_ctr_types = 0, ix = 0; ix != GCOV_COUNTERS; ix++)
+ if (prg_ctr_mask & (1 << ix))
+ n_ctr_types++;
- /* next -- NULL */
- field = build_decl (FIELD_DECL, NULL_TREE,
- build_pointer_type
- (build_qualified_type
- (gcov_info_type, TYPE_QUAL_CONST)));
- TREE_CHAIN (field) = fields;
- fields = field;
-
- /* Filename */
- filename = getpwd ();
- filename = (filename && da_file_name[0] != '/'
- ? concat (filename, "/", da_file_name, NULL)
- : da_file_name);
- filename_len = strlen (filename);
- if (filename != da_file_name)
- free (filename);
+ type = lang_hooks.types.make_type (RECORD_TYPE);
+ const_type = build_qualified_type (type, TYPE_QUAL_CONST);
- field = build_decl (FIELD_DECL, NULL_TREE, string_type);
- TREE_CHAIN (field) = fields;
- fields = field;
-
- /* Workspace */
- field = build_decl (FIELD_DECL, NULL_TREE, long_integer_type_node);
+ /* Version ident */
+ field = build_decl (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);
- /* number of functions */
- field = build_decl (FIELD_DECL, NULL_TREE, unsigned_type_node);
- TREE_CHAIN (field) = fields;
- fields = field;
-
- /* function_info table */
- function_info_fields = build_function_info_fields ();
- function_info_type = (*lang_hooks.types.make_type) (RECORD_TYPE);
- finish_builtin_struct (function_info_type, "__function_info",
- function_info_fields, NULL_TREE);
- function_info_ptr_type =
- build_pointer_type
- (build_qualified_type (function_info_type,
- TYPE_QUAL_CONST));
- field = build_decl (FIELD_DECL, NULL_TREE, function_info_ptr_type);
- TREE_CHAIN (field) = fields;
- fields = field;
-
- /* n_counter_sections */
- field = build_decl (FIELD_DECL, NULL_TREE, unsigned_type_node);
+ /* next -- NULL */
+ field = build_decl (FIELD_DECL, NULL_TREE, build_pointer_type (const_type));
TREE_CHAIN (field) = fields;
fields = field;
-
- /* counter sections */
- counter_section_data_fields = build_counter_section_data_fields ();
- counter_section_data_type = (*lang_hooks.types.make_type) (RECORD_TYPE);
- finish_builtin_struct (counter_section_data_type, "__counter_section_data",
- counter_section_data_fields, NULL_TREE);
- counter_section_data_ptr_type =
- build_pointer_type
- (build_qualified_type (counter_section_data_type,
- TYPE_QUAL_CONST));
- field = build_decl (FIELD_DECL, NULL_TREE, counter_section_data_ptr_type);
+ value = tree_cons (field, null_pointer_node, value);
+
+ /* stamp */
+ field = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
TREE_CHAIN (field) = fields;
fields = field;
-
- return fields;
-}
-
-/* Creates struct gcov_info value (in gcov-io.h). */
-static tree
-build_gcov_info_value ()
-{
- tree value = NULL_TREE;
- tree filename_string;
- char *filename;
- int filename_len;
- unsigned n_functions, i;
- struct function_list *item;
- tree string_type =
- build_pointer_type (build_qualified_type (char_type_node,
- TYPE_QUAL_CONST));
- tree function_info_fields, function_info_type, function_info_ptr_type;
- tree functions;
- tree counter_section_data_fields, counter_section_data_type;
- tree counter_section_data_ptr_type, counter_sections;
-
- /* Version ident */
- value = tree_cons (NULL_TREE,
- convert (long_unsigned_type_node,
- build_int_2 (GCOV_VERSION, 0)),
+ value = tree_cons (field, build_int_cstu (TREE_TYPE (field), local_tick),
value);
- /* next -- NULL */
- value = tree_cons (NULL_TREE, null_pointer_node, value);
-
/* Filename */
- 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);
- TREE_TYPE (filename_string) =
- build_array_type (char_type_node,
- build_index_type (build_int_2 (filename_len, 0)));
- value = tree_cons (NULL_TREE,
- build1 (ADDR_EXPR,
- string_type,
- filename_string),
- value);
-
- /* Workspace */
- value = tree_cons (NULL_TREE,
- convert (long_integer_type_node, integer_zero_node),
- value);
-
- /* number of functions */
- n_functions = 0;
- for (item = functions_head; item != 0; item = item->next, n_functions++)
- continue;
- value = tree_cons (NULL_TREE,
- convert (unsigned_type_node,
- build_int_2 (n_functions, 0)),
+ string_type = build_pointer_type (build_qualified_type (char_type_node,
+ TYPE_QUAL_CONST));
+ field = build_decl (FIELD_DECL, NULL_TREE, string_type);
+ TREE_CHAIN (field) = fields;
+ fields = field;
+ 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, da_file_name_len)));
+ value = tree_cons (field, build1 (ADDR_EXPR, string_type, filename_string),
value);
- /* function_info table */
- function_info_fields = build_function_info_fields ();
- function_info_type = (*lang_hooks.types.make_type) (RECORD_TYPE);
- function_info_ptr_type =
- build_pointer_type (
- build_qualified_type (function_info_type,
- TYPE_QUAL_CONST));
- functions = NULL_TREE;
- for (item = functions_head; item != 0; item = item->next)
- {
- tree function_info_value = build_function_info_value (item);
- set_purpose (function_info_value, function_info_fields);
- functions
- = tree_cons (NULL_TREE,
- build_constructor (function_info_type,
- nreverse (function_info_value)),
- functions);
- }
- finish_builtin_struct (function_info_type, "__function_info",
- function_info_fields, NULL_TREE);
-
- /* Create constructor for array. */
- if (n_functions)
+ /* Build the fn_info type and initializer. */
+ fn_info_type = build_fn_info_type (n_ctr_types);
+ fn_info_ptr_type = build_pointer_type (build_qualified_type
+ (fn_info_type, TYPE_QUAL_CONST));
+ for (fn = functions_head, n_fns = 0; fn; fn = fn->next, n_fns++)
+ fn_info_value = tree_cons (NULL_TREE,
+ build_fn_info_value (fn, fn_info_type),
+ fn_info_value);
+ if (n_fns)
{
tree array_type;
- array_type = build_array_type (
- function_info_type,
- build_index_type (build_int_2 (n_functions - 1, 0)));
- functions = build_constructor (array_type, nreverse (functions));
- functions = build1 (ADDR_EXPR,
- function_info_ptr_type,
- functions);
+ array_type = build_index_type (build_int_cst (NULL_TREE, n_fns - 1));
+ array_type = build_array_type (fn_info_type, array_type);
+
+ /* 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
- functions = null_pointer_node;
+ fn_info_value = null_pointer_node;
- value = tree_cons (NULL_TREE, functions, value);
+ /* number of functions */
+ field = build_decl (FIELD_DECL, NULL_TREE, get_gcov_unsigned_t ());
+ TREE_CHAIN (field) = fields;
+ fields = field;
+ value = tree_cons (field,
+ build_int_cstu (get_gcov_unsigned_t (), n_fns),
+ value);
- /* n_counter_sections */
- value = tree_cons (NULL_TREE,
- convert (unsigned_type_node,
- build_int_2 (profile_info.n_sections, 0)),
+ /* fn_info table */
+ field = build_decl (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 ());
+ TREE_CHAIN (field) = fields;
+ fields = field;
+ value = tree_cons (field,
+ build_int_cstu (get_gcov_unsigned_t (), prg_ctr_mask),
value);
-
- /* counter sections */
- counter_section_data_fields = build_counter_section_data_fields ();
- counter_section_data_type = (*lang_hooks.types.make_type) (RECORD_TYPE);
- counter_sections = NULL_TREE;
- for (i = 0; i < profile_info.n_sections; i++)
- {
- tree counter_sections_value =
- build_counter_section_data_value (
- profile_info.section_info[i].tag,
- profile_info.section_info[i].n_counters);
- set_purpose (counter_sections_value, counter_section_data_fields);
- counter_sections =
- tree_cons (NULL_TREE,
- build_constructor (counter_section_data_type,
- nreverse (counter_sections_value)),
- counter_sections);
- }
- finish_builtin_struct (counter_section_data_type, "__counter_section_data",
- counter_section_data_fields, NULL_TREE);
- counter_section_data_ptr_type =
- build_pointer_type
- (build_qualified_type (counter_section_data_type,
- TYPE_QUAL_CONST));
-
- if (profile_info.n_sections)
- {
- tree cst_type = build_index_type (build_int_2 (profile_info.n_sections-1,
- 0));
- cst_type = build_array_type (counter_section_data_type, cst_type);
- counter_sections = build_constructor (cst_type,
- nreverse (counter_sections));
- counter_sections = build1 (ADDR_EXPR,
- counter_section_data_ptr_type,
- counter_sections);
- }
- else
- counter_sections = null_pointer_node;
- value = tree_cons (NULL_TREE, counter_sections, value);
+
+ /* counters */
+ ctr_info_type = build_ctr_info_type ();
+ ctr_info_ary_type = build_index_type (build_int_cst (NULL_TREE,
+ 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);
+ /* 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;
+ fields = field;
+ value = tree_cons (field, ctr_info_value, value);
+
+ finish_builtin_struct (type, "__gcov_info", fields, NULL_TREE);
+
+ /* FIXME: use build_constructor directly. */
+ value = build_constructor_from_list (type, nreverse (value));
return value;
}
-/* Write out the structure which libgcc uses to locate all the arc
+/* Write out the structure which libgcov uses to locate all the
counters. The structures used here must match those defined in
gcov-io.h. Write out the constructor to call __gcov_init. */
static void
-create_coverage ()
+create_coverage (void)
{
- tree gcov_info_fields, gcov_info_type, gcov_info_value, gcov_info;
- char name[20];
- char *ctor_name;
- tree ctor;
- rtx gcov_info_address;
- int save_flag_inline_functions = flag_inline_functions;
- unsigned i;
+ tree gcov_info, gcov_init, body, t;
+ char name_buf[32];
- for (i = 0; i < profile_info.n_sections; i++)
- if (profile_info.section_info[i].n_counters)
- break;
- if (i == profile_info.n_sections)
+ no_coverage = 1; /* Disable any further coverage. */
+
+ if (!prg_ctr_mask)
return;
-
- gcov_info_type = (*lang_hooks.types.make_type) (RECORD_TYPE);
- gcov_info_fields = build_gcov_info_fields (gcov_info_type);
- gcov_info_value = build_gcov_info_value ();
- set_purpose (gcov_info_value, gcov_info_fields);
- finish_builtin_struct (gcov_info_type, "__gcov_info",
- gcov_info_fields, NULL_TREE);
- gcov_info = build (VAR_DECL, gcov_info_type, NULL_TREE, NULL_TREE);
- DECL_INITIAL (gcov_info) =
- build_constructor (gcov_info_type, nreverse (gcov_info_value));
+ t = build_gcov_info ();
+ gcov_info = build_decl (VAR_DECL, NULL_TREE, TREE_TYPE (t));
TREE_STATIC (gcov_info) = 1;
- ASM_GENERATE_INTERNAL_LABEL (name, "LPBX", 0);
- DECL_NAME (gcov_info) = get_identifier (name);
-
+ 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);
- /* Build the constructor function to invoke __gcov_init. */
- ctor_name = concat (IDENTIFIER_POINTER (get_file_function_name ('I')),
- "_GCOV", NULL);
- ctor = build_decl (FUNCTION_DECL, get_identifier (ctor_name),
- build_function_type (void_type_node, NULL_TREE));
- free (ctor_name);
- DECL_EXTERNAL (ctor) = 0;
-
- /* It can be a static function as long as collect2 does not have
- to scan the object file to find its ctor/dtor routine. */
- TREE_PUBLIC (ctor) = ! targetm.have_ctors_dtors;
- TREE_USED (ctor) = 1;
- DECL_RESULT (ctor) = build_decl (RESULT_DECL, NULL_TREE, void_type_node);
-
- ctor = (*lang_hooks.decls.pushdecl) (ctor);
- rest_of_decl_compilation (ctor, 0, 1, 0);
- announce_function (ctor);
- current_function_decl = ctor;
- DECL_INITIAL (ctor) = error_mark_node;
- make_decl_rtl (ctor, NULL);
- init_function_start (ctor, input_filename, lineno);
- (*lang_hooks.decls.pushlevel) (0);
- expand_function_start (ctor, 0);
- cfun->arc_profile = 0;
-
- /* Actually generate the code to call __gcov_init. */
- gcov_info_address = force_reg (Pmode, XEXP (DECL_RTL (gcov_info), 0));
- emit_library_call (gcov_init_libfunc, LCT_NORMAL, VOIDmode, 1,
- gcov_info_address, Pmode);
-
- expand_function_end (input_filename, lineno, 0);
- (*lang_hooks.decls.poplevel) (1, 0, 1);
-
- /* Since ctor isn't in the list of globals, it would never be emitted
- when it's considered to be 'safe' for inlining, so turn off
- flag_inline_functions. */
- flag_inline_functions = 0;
-
- rest_of_compilation (ctor);
-
- /* Reset flag_inline_functions to its original value. */
- flag_inline_functions = save_flag_inline_functions;
-
- if (! quiet_flag)
- fflush (asm_out_file);
- current_function_decl = NULL_TREE;
-
- if (targetm.have_ctors_dtors)
- (* targetm.asm_out.constructor) (XEXP (DECL_RTL (ctor), 0),
- DEFAULT_INIT_PRIORITY);
+ /* 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);
+ TREE_PUBLIC (t) = 1;
+ DECL_EXTERNAL (t) = 1;
+ gcov_init = t;
+
+ /* Generate a call to __gcov_init(&gcov_info). */
+ body = NULL;
+ t = build_fold_addr_expr (gcov_info);
+ t = build_call_expr (gcov_init, 1, t);
+ append_to_statement_list (t, &body);
+
+ /* Generate a constructor to run it. */
+ cgraph_build_static_cdtor ('I', body, DEFAULT_INIT_PRIORITY);
}
\f
-/* Find (and create if not present) a section with TAG for the current
- function. */
-struct section_info *
-find_counters_section (tag)
- unsigned tag;
-{
- unsigned i;
-
- for (i = 0; i < profile_info.n_sections; i++)
- if (profile_info.section_info[i].tag == tag)
- return profile_info.section_info + i;
-
- if (i == MAX_COUNTER_SECTIONS)
- abort ();
-
- profile_info.section_info[i].tag = tag;
- profile_info.section_info[i].present = 0;
- profile_info.section_info[i].n_counters = 0;
- profile_info.section_info[i].n_counters_now = 0;
- profile_info.n_sections++;
-
- return profile_info.section_info + i;
-}
-
-/* Generate a MEM rtl to access counter NO in counter section TAG. */
-
-rtx
-coverage_counter_ref (unsigned tag, unsigned no)
-{
- enum machine_mode mode = mode_for_size (GCOV_TYPE_SIZE, MODE_INT, 0);
- struct section_info *sect = find_counters_section (tag);
- rtx ref;
-
- if (!profiler_label)
- {
- /* Generate and save a copy of this so it can be shared. */
- char buf[20];
-
- ASM_GENERATE_INTERNAL_LABEL (buf, "LPBX", 2);
- profiler_label = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (buf));
- }
- if (no + 1 > (unsigned) sect->n_counters_now)
- sect->n_counters_now = no + 1;
-
- no += sect->n_counters;
- ref = plus_constant (profiler_label, GCOV_TYPE_SIZE / BITS_PER_UNIT * no);
- ref = gen_rtx_MEM (mode, ref);
- set_mem_alias_set (ref, new_alias_set ());
-
- return ref;
-}
-
-\f
/* Perform file-level initialization. Read in data file, generate name
- of graph file. */
+ of graph file. */
void
-coverage_init (filename)
- const char *filename;
+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)
+ + prefix_len + 1);
- da_file_name = (char *) xmalloc (len + strlen (GCOV_DATA_SUFFIX) + 1);
- strcpy (da_file_name, filename);
+ 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);
-
- read_counts_file ();
- /* Open the bbg output file. */
- bbg_file_name = (char *) xmalloc (len + strlen (GCOV_GRAPH_SUFFIX) + 1);
+ /* Name of bbg file. */
+ bbg_file_name = XNEWVEC (char, len + strlen (GCOV_NOTE_SUFFIX) + 1);
strcpy (bbg_file_name, filename);
- strcat (bbg_file_name, GCOV_GRAPH_SUFFIX);
+ strcat (bbg_file_name, GCOV_NOTE_SUFFIX);
+
+ if (flag_profile_use)
+ read_counts_file ();
}
/* Performs file-level cleanup. Close graph file, generate coverage
variables and constructor. */
void
-coverage_finish ()
+coverage_finish (void)
{
create_coverage ();
if (bbg_file_opened)
{
int error = gcov_close ();
-
+
if (error)
unlink (bbg_file_name);
-#if SELF_COVERAGE
- /* If the compiler is instrumented, we should not
- unconditionally remove the counts file, because we might be
- recompiling ourselves. The .da files are all removed during
- copying the stage1 files. */
- if (error)
-#endif
+ if (!local_tick)
+ /* Only remove the da file, if we cannot stamp it. If we can
+ stamp it, libgcov will DTRT. */
unlink (da_file_name);
}
}
-
#include "gt-coverage.h"