dt_module_t *
dt_module_create(dtrace_hdl_t *dtp, const char *name)
{
uint_t h = dt_strtab_hash(name, NULL) % dtp->dt_modbuckets;
dt_module_t *dmp;
for (dmp = dtp->dt_mods[h]; dmp != NULL; dmp = dmp->dm_next) {
if (strcmp(dmp->dm_name, name) == 0)
return (dmp);
}
if ((dmp = malloc(sizeof (dt_module_t))) == NULL)
return (NULL); /* caller must handle allocation failure */
bzero(dmp, sizeof (dt_module_t));
(void) strlcpy(dmp->dm_name, name, sizeof (dmp->dm_name));
dt_list_append(&dtp->dt_modlist, dmp);
dmp->dm_next = dtp->dt_mods[h];
dtp->dt_mods[h] = dmp;
dtp->dt_nmods++;
if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64)
dmp->dm_ops = &dt_modops_64;
else
dmp->dm_ops = &dt_modops_32;
return (dmp);
}
dt_module_t *
dt_module_create(dtrace_hdl_t *dtp, const char *name)
{
long pid;
char *eptr;
dt_ident_t *idp;
uint_t h = dt_strtab_hash(name, NULL) % dtp->dt_modbuckets;
dt_module_t *dmp;
for (dmp = dtp->dt_mods[h]; dmp != NULL; dmp = dmp->dm_next) {
if (strcmp(dmp->dm_name, name) == 0)
return (dmp);
}
if ((dmp = malloc(sizeof (dt_module_t))) == NULL)
return (NULL); /* caller must handle allocation failure */
bzero(dmp, sizeof (dt_module_t));
(void) strlcpy(dmp->dm_name, name, sizeof (dmp->dm_name));
dt_list_append(&dtp->dt_modlist, dmp);
dmp->dm_next = dtp->dt_mods[h];
dtp->dt_mods[h] = dmp;
dtp->dt_nmods++;
if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64)
dmp->dm_ops = &dt_modops_64;
else
dmp->dm_ops = &dt_modops_32;
/*
* Modules for userland processes are special. They always refer to a
* specific process and have a copy of their CTF data from a specific
* instant in time. Any dt_module_t that begins with 'pid' is a module
* for a specific process, much like how any probe description that
* begins with 'pid' is special. pid123 refers to process 123. A module
* that is just 'pid' refers specifically to pid$target. This is
* generally done as D does not currently allow for macros to be
* evaluated when working with types.
*/
if (strncmp(dmp->dm_name, "pid", 3) == 0) {
errno = 0;
if (dmp->dm_name[3] == '\0') {
idp = dt_idhash_lookup(dtp->dt_macros, "target");
if (idp != NULL && idp->di_id != 0)
dmp->dm_pid = idp->di_id;
} else {
pid = strtol(dmp->dm_name + 3, &eptr, 10);
if (errno == 0 && *eptr == '\0')
dmp->dm_pid = (pid_t)pid;
else
dt_dprintf("encountered malformed pid "
"module: %s\n", dmp->dm_name);
}
}
return (dmp);
}
static dt_provider_t *
dt_provider_insert(dtrace_hdl_t *dtp, dt_provider_t *pvp, uint_t h)
{
dt_list_append(&dtp->dt_provlist, pvp);
pvp->pv_next = dtp->dt_provs[h];
dtp->dt_provs[h] = pvp;
dtp->dt_nprovs++;
return (pvp);
}
/*ARGSUSED*/
static int
dt_opt_libdir(dtrace_hdl_t *dtp, const char *arg, uintptr_t option)
{
dt_dirpath_t *dp;
if (arg == NULL)
return (dt_set_errno(dtp, EDT_BADOPTVAL));
if ((dp = malloc(sizeof (dt_dirpath_t))) == NULL ||
(dp->dir_path = strdup(arg)) == NULL) {
free(dp);
return (dt_set_errno(dtp, EDT_NOMEM));
}
dt_list_append(&dtp->dt_lib_path, dp);
return (0);
}
dtrace_prog_t *
dt_program_create(dtrace_hdl_t *dtp)
{
dtrace_prog_t *pgp = dt_zalloc(dtp, sizeof (dtrace_prog_t));
if (pgp != NULL) {
dt_list_append(&dtp->dt_programs, pgp);
} else {
(void) dt_set_errno(dtp, EDT_NOMEM);
return (NULL);
}
/*
* By default, programs start with DOF version 1 so that output files
* containing DOF are backward compatible. If a program requires new
* DOF features, the version is increased as needed.
*/
pgp->dp_dofversion = DOF_VERSION_1;
return (pgp);
}
static dt_bkpt_t *
dt_proc_bpcreate(dt_proc_t *dpr, uintptr_t addr, dt_bkpt_f *func, void *data)
{
struct ps_prochandle *P = dpr->dpr_proc;
dt_bkpt_t *dbp;
assert(DT_MUTEX_HELD(&dpr->dpr_lock));
if ((dbp = dt_zalloc(dpr->dpr_hdl, sizeof (dt_bkpt_t))) != NULL) {
dbp->dbp_func = func;
dbp->dbp_data = data;
dbp->dbp_addr = addr;
if (Psetbkpt(P, dbp->dbp_addr, &dbp->dbp_instr) == 0)
dbp->dbp_active = B_TRUE;
dt_list_append(&dpr->dpr_bps, dbp);
}
return (dbp);
}
dtrace_prog_t *
dt_program_create(dtrace_hdl_t *dtp)
{
dtrace_prog_t *pgp = dt_zalloc(dtp, sizeof (dtrace_prog_t));
if (pgp != NULL)
dt_list_append(&dtp->dt_programs, pgp);
else
(void) dt_set_errno(dtp, EDT_NOMEM);
/*
* By default, programs start with DOF version 1 so that output files
* containing DOF are backward compatible. If a program requires new
* DOF features, the version is increased as needed.
*/
/*
* APPLE NOTE: The earliest DOF version Leopard will support is v3.
* This includes relative offsets for probes, and is-enabled probes.
*/
pgp->dp_dofversion = DOF_VERSION_3;
return (pgp);
}
dt_xlator_t *
dt_xlator_create(dtrace_hdl_t *dtp,
const dtrace_typeinfo_t *src, const dtrace_typeinfo_t *dst,
const char *name, dt_node_t *members, dt_node_t *nodes)
{
dt_xlator_t *dxp = dt_zalloc(dtp, sizeof (dt_xlator_t));
dtrace_typeinfo_t ptr = *dst;
dt_xlator_t **map;
dt_node_t *dnp;
uint_t kind;
if (dxp == NULL)
return (NULL);
dxp->dx_hdl = dtp;
dxp->dx_id = dtp->dt_xlatorid++;
dxp->dx_gen = dtp->dt_gen;
dxp->dx_arg = -1;
if ((map = dt_alloc(dtp, sizeof (void *) * (dxp->dx_id + 1))) == NULL) {
dt_free(dtp, dxp);
return (NULL);
}
dt_list_append(&dtp->dt_xlators, dxp);
bcopy(dtp->dt_xlatormap, map, sizeof (void *) * dxp->dx_id);
dt_free(dtp, dtp->dt_xlatormap);
dtp->dt_xlatormap = map;
dtp->dt_xlatormap[dxp->dx_id] = dxp;
if (dt_type_pointer(&ptr) == -1) {
ptr.dtt_ctfp = NULL;
ptr.dtt_type = CTF_ERR;
}
dxp->dx_ident = dt_ident_create(name ? name : "T",
DT_IDENT_SCALAR, DT_IDFLG_REF | DT_IDFLG_ORPHAN, 0,
_dtrace_defattr, 0, &dt_idops_thaw, NULL, dtp->dt_gen);
if (dxp->dx_ident == NULL)
goto err; /* no memory for identifier */
dxp->dx_ident->di_ctfp = src->dtt_ctfp;
dxp->dx_ident->di_type = src->dtt_type;
/*
* If an input parameter name is given, this is a static translator
* definition: create an idhash and identifier for the parameter.
*/
if (name != NULL) {
dxp->dx_locals = dt_idhash_create("xlparams", NULL, 0, 0);
if (dxp->dx_locals == NULL)
goto err; /* no memory for identifier hash */
dt_idhash_xinsert(dxp->dx_locals, dxp->dx_ident);
}
dxp->dx_souid.di_name = "translator";
dxp->dx_souid.di_kind = DT_IDENT_XLSOU;
dxp->dx_souid.di_flags = DT_IDFLG_REF;
dxp->dx_souid.di_id = dxp->dx_id;
dxp->dx_souid.di_attr = _dtrace_defattr;
dxp->dx_souid.di_ops = &dt_idops_thaw;
dxp->dx_souid.di_data = dxp;
dxp->dx_souid.di_ctfp = dst->dtt_ctfp;
dxp->dx_souid.di_type = dst->dtt_type;
dxp->dx_souid.di_gen = dtp->dt_gen;
dxp->dx_ptrid.di_name = "translator";
dxp->dx_ptrid.di_kind = DT_IDENT_XLPTR;
dxp->dx_ptrid.di_flags = DT_IDFLG_REF;
dxp->dx_ptrid.di_id = dxp->dx_id;
dxp->dx_ptrid.di_attr = _dtrace_defattr;
dxp->dx_ptrid.di_ops = &dt_idops_thaw;
dxp->dx_ptrid.di_data = dxp;
dxp->dx_ptrid.di_ctfp = ptr.dtt_ctfp;
dxp->dx_ptrid.di_type = ptr.dtt_type;
dxp->dx_ptrid.di_gen = dtp->dt_gen;
/*
* If a deferred pragma is pending on the keyword "translator", run all
* the deferred pragmas on dx_souid and then copy results to dx_ptrid.
* See the code in dt_pragma.c for details on deferred ident pragmas.
*/
if (dtp->dt_globals->dh_defer != NULL && yypcb->pcb_pragmas != NULL &&
dt_idhash_lookup(yypcb->pcb_pragmas, "translator") != NULL) {
dtp->dt_globals->dh_defer(dtp->dt_globals, &dxp->dx_souid);
dxp->dx_ptrid.di_attr = dxp->dx_souid.di_attr;
dxp->dx_ptrid.di_vers = dxp->dx_souid.di_vers;
}
dxp->dx_src_ctfp = src->dtt_ctfp;
dxp->dx_src_type = src->dtt_type;
dxp->dx_src_base = ctf_type_resolve(src->dtt_ctfp, src->dtt_type);
dxp->dx_dst_ctfp = dst->dtt_ctfp;
dxp->dx_dst_type = dst->dtt_type;
dxp->dx_dst_base = ctf_type_resolve(dst->dtt_ctfp, dst->dtt_type);
kind = ctf_type_kind(dst->dtt_ctfp, dxp->dx_dst_base);
assert(kind == CTF_K_STRUCT || kind == CTF_K_UNION);
/*
* If no input parameter is given, we're making a dynamic translator:
* create member nodes for every member of the output type. Otherwise
* retain the member and allocation node lists presented by the parser.
*/
if (name == NULL) {
if (ctf_member_iter(dxp->dx_dst_ctfp, dxp->dx_dst_base,
dt_xlator_create_member, dxp) != 0)
goto err;
} else {
dxp->dx_members = members;
dxp->dx_nodes = nodes;
}
/*
* Assign member IDs to each member and allocate space for DIFOs
* if and when this translator is eventually compiled.
*/
for (dnp = dxp->dx_members; dnp != NULL; dnp = dnp->dn_list) {
dnp->dn_membxlator = dxp;
dnp->dn_membid = dxp->dx_nmembers++;
}
dxp->dx_membdif = dt_zalloc(dtp,
sizeof (dtrace_difo_t *) * dxp->dx_nmembers);
if (dxp->dx_membdif == NULL) {
dxp->dx_nmembers = 0;
goto err;
}
return (dxp);
err:
dt_xlator_destroy(dtp, dxp);
return (NULL);
}
void
dt_idstack_push(dt_idstack_t *sp, dt_idhash_t *dhp)
{
dt_list_append(&sp->dids_list, dhp);
}
