fmd/common/fmd_trace.c

46 	fmd_tracebuf_t *tbp = fmd_zalloc(sizeof (fmd_tracebuf_t), FMD_SLEEP);
49 	(void) fmd_conf_getprop(fmd.d_conf, "trace.frames", &tbp->tb_frames);
50 	(void) fmd_conf_getprop(fmd.d_conf, "trace.recs", &tbp->tb_recs);
69 		tbp->tb_frames = (tbp->tb_frames & ~1UL) + 1;
71 		tbp->tb_frames = P2ROUNDUP(tbp->tb_frames, 2);
73 	tbp->tb_size = sizeof (fmd_tracerec_t) +
74 	    sizeof (uintptr_t) * (MAX(tbp->tb_frames, 1) - 1);
76 	bufsize = tbp->tb_size * tbp->tb_recs;
78 	tbp->tb_buf = fmd_zalloc(bufsize, FMD_SLEEP);
79 	tbp->tb_end = (void *)((uintptr_t)tbp->tb_buf + bufsize - tbp->tb_size);
80 	tbp->tb_ptr = tbp->tb_buf;
82 	return (tbp);
86 fmd_trace_destroy(fmd_tracebuf_t *tbp)
88 	fmd_free(tbp->tb_buf, tbp->tb_size * tbp->tb_recs);
89 	fmd_free(tbp, sizeof (fmd_tracebuf_t));
106 fmd_trace_none(fmd_tracebuf_t *tbp, uint_t tag, const char *format, va_list ap)
112 fmd_trace_lite(fmd_tracebuf_t *tbp, uint_t tag, const char *format, va_list ap)
115 	fmd_tracerec_t *trp = tbp->tb_ptr;
118 	if (tbp->tb_depth++ != 0) {
119 		tbp->tb_depth--;
134 	if (tbp->tb_ptr != tbp->tb_end)
135 		tbp->tb_ptr = (void *)((uintptr_t)tbp->tb_ptr + tbp->tb_size);
137 		tbp->tb_ptr = tbp->tb_buf;
139 	tbp->tb_depth--;
144 fmd_trace_full(fmd_tracebuf_t *tbp, uint_t tag, const char *format, va_list ap)
147 	fmd_tracerec_t *trp = tbp->tb_ptr;
151 	if (tbp->tb_depth++ != 0) {
152 		tbp->tb_depth--;
157 	trp->tr_tag = tbp->tb_frames; /* for use by fmd_trace_frame() */
174 	if (tbp->tb_ptr != tbp->tb_end)
175 		tbp->tb_ptr = (void *)((uintptr_t)tbp->tb_ptr + tbp->tb_size);
177 		tbp->tb_ptr = tbp->tb_buf;
179 	tbp->tb_depth--;