libdtrace/common/dt_subr.c

65 dtrace_xstr2desc(dtrace_hdl_t *dtp, dtrace_probespec_t spec,
74 		return (dt_set_errno(dtp, EINVAL));
119 					return (dt_set_errno(dtp, EDT_BADSPCV));
133 				idp = dt_idhash_lookup(dtp->dt_macros, vstr);
136 					return (dt_set_errno(dtp, EDT_BADSPCV));
142 				return (dt_set_errno(dtp, EDT_BADSPCV));
146 			return (dt_set_errno(dtp, EDT_BADSPEC));
149 			return (dt_set_errno(dtp, ENAMETOOLONG));
162 dtrace_str2desc(dtrace_hdl_t *dtp, dtrace_probespec_t spec,
165 	return (dtrace_xstr2desc(dtp, spec, s, 0, NULL, pdp));
169 dtrace_id2desc(dtrace_hdl_t *dtp, dtrace_id_t id, dtrace_probedesc_t *pdp)
174 	if (dt_ioctl(dtp, DTRACEIOC_PROBES, pdp) == -1 ||
176 		return (dt_set_errno(dtp, EDT_BADID));
426 dt_cpp_add_arg(dtrace_hdl_t *dtp, const char *str)
430 	if (dtp->dt_cpp_argc == dtp->dt_cpp_args) {
431 		int olds = dtp->dt_cpp_args;
433 		char **argv = realloc(dtp->dt_cpp_argv, sizeof (char *) * news);
439 		dtp->dt_cpp_argv = argv;
440 		dtp->dt_cpp_args = news;
446 	assert(dtp->dt_cpp_argc < dtp->dt_cpp_args);
447 	dtp->dt_cpp_argv[dtp->dt_cpp_argc++] = arg;
452 dt_cpp_pop_arg(dtrace_hdl_t *dtp)
456 	if (dtp->dt_cpp_argc <= 1)
459 	arg = dtp->dt_cpp_argv[--dtp->dt_cpp_argc];
460 	dtp->dt_cpp_argv[dtp->dt_cpp_argc] = NULL;
481 dt_ioctl(dtrace_hdl_t *dtp, int val, void *arg)
483 dt_ioctl(dtrace_hdl_t *dtp, u_long val, void *arg)
486 	const dtrace_vector_t *v = dtp->dt_vector;
494 		return (v->dtv_ioctl(dtp->dt_varg, val, arg));
496 	if (dtp->dt_fd >= 0)
497 		return (ioctl(dtp->dt_fd, val, arg));
504 dt_status(dtrace_hdl_t *dtp, processorid_t cpu)
506 	const dtrace_vector_t *v = dtp->dt_vector;
521 	return (v->dtv_status(dtp->dt_varg, cpu));
525 dt_sysconf(dtrace_hdl_t *dtp, int name)
527 	const dtrace_vector_t *v = dtp->dt_vector;
532 	return (v->dtv_sysconf(dtp->dt_varg, name));
542 dt_write(dtrace_hdl_t *dtp, int fd, const void *buf, size_t n)
556 		return (dt_set_errno(dtp, errno));
581 dt_printf(dtrace_hdl_t *dtp, FILE *fp, const char *format, ...)
593 	if (dtp->dt_freopen_fp != NULL)
594 		fp = dtp->dt_freopen_fp;
599 	if (dtp->dt_sprintf_buflen != 0) {
603 		assert(dtp->dt_sprintf_buf != NULL);
605 		buf = &dtp->dt_sprintf_buf[len = strlen(dtp->dt_sprintf_buf)];
606 		len = dtp->dt_sprintf_buflen - len;
611 			n = dt_set_errno(dtp, errno);
627 		if (dtp->dt_bufhdlr == NULL) {
629 			return (dt_set_errno(dtp, EDT_NOBUFFERED));
632 		if (dtp->dt_buffered_buf == NULL) {
633 			assert(dtp->dt_buffered_size == 0);
634 			dtp->dt_buffered_size = 1;
635 			dtp->dt_buffered_buf = malloc(dtp->dt_buffered_size);
637 			if (dtp->dt_buffered_buf == NULL) {
639 				return (dt_set_errno(dtp, EDT_NOMEM));
642 			dtp->dt_buffered_offs = 0;
643 			dtp->dt_buffered_buf[0] = '\0';
648 			rval = dt_set_errno(dtp, errno);
663 			assert(dtp->dt_buffered_offs < dtp->dt_buffered_size);
664 			avail = dtp->dt_buffered_size - dtp->dt_buffered_offs;
669 			if ((newbuf = realloc(dtp->dt_buffered_buf,
670 			    dtp->dt_buffered_size << 1)) == NULL) {
672 				return (dt_set_errno(dtp, EDT_NOMEM));
675 			dtp->dt_buffered_buf = newbuf;
676 			dtp->dt_buffered_size <<= 1;
680 		if (vsnprintf(&dtp->dt_buffered_buf[dtp->dt_buffered_offs],
682 			rval = dt_set_errno(dtp, errno);
689 		dtp->dt_buffered_offs += needed;
690 		assert(dtp->dt_buffered_buf[dtp->dt_buffered_offs] == '\0');
703 		return (dt_set_errno(dtp, errno));
710 dt_buffered_flush(dtrace_hdl_t *dtp, dtrace_probedata_t *pdata,
715 	if (dtp->dt_buffered_offs == 0)
718 	data.dtbda_handle = dtp;
719 	data.dtbda_buffered = dtp->dt_buffered_buf;
725 	if ((*dtp->dt_bufhdlr)(&data, dtp->dt_bufarg) == DTRACE_HANDLE_ABORT)
726 		return (dt_set_errno(dtp, EDT_DIRABORT));
728 	dtp->dt_buffered_offs = 0;
729 	dtp->dt_buffered_buf[0] = '\0';
735 dt_buffered_destroy(dtrace_hdl_t *dtp)
737 	free(dtp->dt_buffered_buf);
738 	dtp->dt_buffered_buf = NULL;
739 	dtp->dt_buffered_offs = 0;
740 	dtp->dt_buffered_size = 0;
744 dt_zalloc(dtrace_hdl_t *dtp, size_t size)
749 		(void) dt_set_errno(dtp, EDT_NOMEM);
757 dt_alloc(dtrace_hdl_t *dtp, size_t size)
762 		(void) dt_set_errno(dtp, EDT_NOMEM);
768 dt_free(dtrace_hdl_t *dtp, void *data)
770 	assert(dtp != NULL); /* ensure sane use of this interface */
775 dt_difo_free(dtrace_hdl_t *dtp, dtrace_difo_t *dp)
780 	dt_free(dtp, dp->dtdo_buf);
781 	dt_free(dtp, dp->dtdo_inttab);
782 	dt_free(dtp, dp->dtdo_strtab);
783 	dt_free(dtp, dp->dtdo_vartab);
784 	dt_free(dtp, dp->dtdo_kreltab);
785 	dt_free(dtp, dp->dtdo_ureltab);
786 	dt_free(dtp, dp->dtdo_xlmtab);
788 	dt_free(dtp, dp);
917 dtrace_addr2str(dtrace_hdl_t *dtp, uint64_t addr, char *str, int nbytes)
926 	if ((err = dtrace_lookup_by_addr(dtp, addr, &sym, &dts)) == 0)
943 		if (dtrace_lookup_by_addr(dtp, addr, NULL, &dts) == 0) {
955 dtrace_uaddr2str(dtrace_hdl_t *dtp, pid_t pid,
964 		P = dt_proc_grab(dtp, pid, PGRAB_RDONLY | PGRAB_FORCE, 0);
971 	dt_proc_lock(dtp, P);
991 	dt_proc_unlock(dtp, P);
992 	dt_proc_release(dtp, P);