static int
dt_pid_create_usdt_probes(dtrace_probedesc_t *pdp, dtrace_hdl_t *dtp,
dt_pcb_t *pcb, dt_proc_t *dpr)
{
struct ps_prochandle *P = dpr->dpr_proc;
int ret = 0;
assert(DT_MUTEX_HELD(&dpr->dpr_lock));
#if defined(sun)
(void) Pupdate_maps(P);
if (Pobject_iter(P, dt_pid_usdt_mapping, P) != 0) {
ret = -1;
(void) dt_pid_error(dtp, pcb, dpr, NULL, D_PROC_USDT,
"failed to instantiate probes for pid %d: %s",
#if defined(sun)
(int)Pstatus(P)->pr_pid, strerror(errno));
#else
(int)proc_getpid(P), strerror(errno));
#endif
}
/*
* Common code for enabling events associated with the run-time linker after
* attaching to a process or after a victim process completes an exec(2).
*/
static void
dt_proc_attach(dt_proc_t *dpr, int exec)
{
const pstatus_t *psp = Pstatus(dpr->dpr_proc);
rd_err_e err;
GElf_Sym sym;
assert(DT_MUTEX_HELD(&dpr->dpr_lock));
if (exec) {
if (psp->pr_lwp.pr_errno != 0)
return; /* exec failed: nothing needs to be done */
dt_proc_bpdestroy(dpr, B_FALSE);
Preset_maps(dpr->dpr_proc);
}
if ((dpr->dpr_rtld = Prd_agent(dpr->dpr_proc)) != NULL &&
(err = rd_event_enable(dpr->dpr_rtld, B_TRUE)) == RD_OK) {
dt_proc_rdwatch(dpr, RD_PREINIT, "RD_PREINIT");
dt_proc_rdwatch(dpr, RD_POSTINIT, "RD_POSTINIT");
dt_proc_rdwatch(dpr, RD_DLACTIVITY, "RD_DLACTIVITY");
} else {
dt_dprintf("pid %d: failed to enable rtld events: %s\n",
(int)dpr->dpr_pid, dpr->dpr_rtld ? rd_errstr(err) :
"rtld_db agent initialization failed");
}
Pupdate_maps(dpr->dpr_proc);
if (Pxlookup_by_name(dpr->dpr_proc, LM_ID_BASE,
"a.out", "main", &sym, NULL) == 0) {
(void) dt_proc_bpcreate(dpr, (uintptr_t)sym.st_value,
(dt_bkpt_f *)dt_proc_bpmain, "a.out`main");
} else {
dt_dprintf("pid %d: failed to find a.out`main: %s\n",
(int)dpr->dpr_pid, strerror(errno));
}
}
static int
dt_pid_create_usdt_probes(dtrace_probedesc_t *pdp, dtrace_hdl_t *dtp,
dt_pcb_t *pcb, dt_proc_t *dpr)
{
struct ps_prochandle *P = dpr->dpr_proc;
int ret = 0;
assert(MUTEX_HELD(&dpr->dpr_lock));
(void) Pupdate_maps(P);
if (Pobject_iter(P, dt_pid_usdt_mapping, P) != 0) {
ret = -1;
(void) dt_pid_error(dtp, pcb, dpr, NULL, D_PROC_USDT,
"failed to instantiate probes for pid %d: %s",
(int)Pstatus(P)->pr_pid, strerror(errno));
}
/*
* Put the module name in its canonical form.
*/
(void) dt_pid_fix_mod(pdp, P);
return (ret);
}
