static char *
read_module_list(char *buf, void ***tables, uint *num_mods)
{
char path[MAXIMUM_PATH];
uint i;
uint version;
PRINT(3, "Reading module table...\n");
/* versione number */
PRINT(4, "Reading version number");
if (dr_sscanf(buf, "DRCOV VERSION: %u\n", &version) != 1 &&
version != DRCOV_VERSION) {
WARN(2, "Failed to read version number");
return NULL;
}
buf = move_to_next_line(buf);
/* module table header */
PRINT(4, "Reading Module Table Header\n");
if (dr_sscanf(buf, "Module Table: %d\n", num_mods) != 1) {
WARN(2, "Failed to read module table");
return NULL;
}
buf = move_to_next_line(buf);
/* module lists */
PRINT(4, "Reading Module Lists\n");
*tables = calloc(*num_mods, sizeof(*tables));
for (i = 0; i < *num_mods; i++) {
uint mod_id;
uint64 mod_size;
void *bb_table;
/* assuming the string is something like: "0, 2207744, /bin/ls" */
/* XXX: i#1143: we do not use dr_sscanf since it does not support %[] */
if (sscanf(buf, " %u, %"INT64_FORMAT"u, %[^\n\r]",
&mod_id, &mod_size, path) != 3)
ASSERT(false, "Failed to read module table");
buf = move_to_next_line(buf);
PRINT(5, "Module: %u, "PFX", %s\n", mod_id, (ptr_uint_t)mod_size, path);
bb_table = hashtable_lookup(&module_htable, path);
if (bb_table == NULL) {
if (mod_size >= UINT_MAX)
ASSERT(false, "module size is too large");
if (strstr(path, "<unknown>") != NULL ||
(mod_filter != NULL && strstr(path, mod_filter) == NULL))
bb_table = BB_TABLE_IGNORE;
else
bb_table = bb_table_create((uint)mod_size);
PRINT(4, "Create bb table "PFX" for module %s\n",
(ptr_uint_t)bb_table, path);
num_module_htable_entries++;
if (!hashtable_add(&module_htable, path, bb_table))
ASSERT(false, "Failed to add new module");
}
(*tables)[i] = bb_table;
}
return buf;
}
static per_thread_t *
thread_data_create(void *drcontext)
{
per_thread_t *data;
if (drcontext == NULL) {
ASSERT(!drcov_per_thread, "drcov_per_thread should not be set");
data = dr_global_alloc(sizeof(*data));
} else {
ASSERT(drcov_per_thread, "drcov_per_thread should be set");
data = dr_thread_alloc(drcontext, sizeof(*data));
}
/* XXX: can we assume bb create event is serialized,
* if so, no lock is required for bb_table operation.
*/
data->bb_table = bb_table_create(drcontext == NULL ? true : false);
log_file_create(drcontext, data);
return data;
}
