bsd/dev/dtrace/sdt_subr.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 /* #pragma ident        "@(#)sdt_subr.c 1.7     06/04/03 SMI" */
  27
  28 #include <sys/sdt_impl.h>
  29
  30 static dtrace_pattr_t vtrace_attr = {
  31 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_ISA },
  32 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
  33 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
  34 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
  35 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_ISA },
  36 };
  37
  38 static dtrace_pattr_t info_attr = {
  39 { DTRACE_STABILITY_EVOLVING, DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_ISA },
  40 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
  41 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
  42 { DTRACE_STABILITY_EVOLVING, DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_ISA },
  43 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_ISA },
  44 };
  45
  46 static dtrace_pattr_t fpu_attr = {
  47 { DTRACE_STABILITY_EVOLVING, DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_ISA },
  48 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
  49 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
  50 { DTRACE_STABILITY_EVOLVING, DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_CPU },
  51 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_ISA },
  52 };
  53
  54 static dtrace_pattr_t fsinfo_attr = {
  55 { DTRACE_STABILITY_EVOLVING, DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_ISA },
  56 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
  57 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
  58 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
  59 { DTRACE_STABILITY_EVOLVING, DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_ISA },
  60 };
  61
  62 static dtrace_pattr_t stab_attr = {
  63 { DTRACE_STABILITY_EVOLVING, DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_ISA },
  64 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
  65 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
  66 { DTRACE_STABILITY_EVOLVING, DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_ISA },
  67 { DTRACE_STABILITY_EVOLVING, DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_ISA },
  68 };
  69
  70 static dtrace_pattr_t sdt_attr = {
  71 { DTRACE_STABILITY_EVOLVING, DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_ISA },
  72 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
  73 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
  74 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_ISA },
  75 { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_ISA },
  76 };
  77
  78 sdt_provider_t sdt_providers[] = {
  79         { "vtrace", "__vtrace____", &vtrace_attr, 0 },
  80         { "sysinfo", "__cpu_sysinfo____", &info_attr, 0 },
  81         { "vminfo", "__vminfo____", &info_attr, 0 },
  82         { "fpuinfo", "__fpuinfo____", &fpu_attr, 0 },
  83         { "sched", "__sched____", &stab_attr, 0 },
  84         { "proc", "__proc____", &stab_attr, 0 },
  85         { "io", "__io____", &stab_attr, 0 },
  86         { "mib", "__mib____", &stab_attr, 0 },
  87         { "fsinfo", "__fsinfo____", &fsinfo_attr, 0 },
  88         { "sdt", "__sdt____", &sdt_attr, 0 },
  89         { NULL }
  90 };
  91
  92 #warning !!! Need xnu cognate for disp_t.
  93 #warning !!! Need translators for bufinfo_t, cpuinfo_t, devinfo_t, fileinfo_t.
  94 sdt_argdesc_t sdt_args[] = {
  95         { "sched", "wakeup", 0, 0, "struct thread *", "lwpsinfo_t *" },
  96         { "sched", "wakeup", 1, 0, "struct proc *", "psinfo_t *" },
  97         { "sched", "dequeue", 0, 0, "struct thread *", "lwpsinfo_t *" },
  98         { "sched", "dequeue", 1, 0, "struct proc *", "psinfo_t *" },
  99         { "sched", "dequeue", 2, 1, "disp_t *", "cpuinfo_t *" },
 100         { "sched", "enqueue", 0, 0, "struct thread *", "lwpsinfo_t *" },
 101         { "sched", "enqueue", 1, 0, "struct proc *", "psinfo_t *" },
 102         { "sched", "enqueue", 2, 1, "disp_t *", "cpuinfo_t *" },
 103         { "sched", "enqueue", 3, 2, "int", NULL },
 104         { "sched", "off-cpu", 0, 0, "struct thread *", "lwpsinfo_t *" },
 105         { "sched", "off-cpu", 1, 0, "struct proc *", "psinfo_t *" },
 106         { "sched", "tick", 0, 0, "struct thread *", "lwpsinfo_t *" },
 107         { "sched", "tick", 1, 0, "struct proc *", "psinfo_t *" },
 108         { "sched", "change-pri", 0, 0, "struct thread *", "lwpsinfo_t *" },
 109         { "sched", "change-pri", 1, 0, "struct proc *", "psinfo_t *" },
 110         { "sched", "change-pri", 2, 1, "pri_t", NULL },
 111         { "sched", "schedctl-nopreempt", 0, 0, "struct thread *", "lwpsinfo_t *" },
 112         { "sched", "schedctl-nopreempt", 1, 0, "struct proc *", "psinfo_t *" },
 113         { "sched", "schedctl-nopreempt", 2, 1, "int", NULL },
 114         { "sched", "schedctl-preempt", 0, 0, "struct thread *", "lwpsinfo_t *" },
 115         { "sched", "schedctl-preempt", 1, 0, "struct proc *", "psinfo_t *" },
 116         { "sched", "schedctl-yield", 0, 0, "int", NULL },
 117         { "sched", "surrender", 0, 0, "struct thread *", "lwpsinfo_t *" },
 118         { "sched", "surrender", 1, 0, "struct proc *", "psinfo_t *" },
 119
 120         { "proc", "create", 0, 0, "struct proc *", "psinfo_t *" },
 121         { "proc", "exec", 0, 0, "string", NULL },
 122         { "proc", "exec-failure", 0, 0, "int", NULL },
 123         /* proc:::exec-success has no arguments */
 124         { "proc", "exit", 0, 0, "int", NULL },
 125         { "proc", "fault", 0, 0, "int", NULL },
 126         { "proc", "fault", 1, 1, "siginfo_t *", NULL },
 127         { "proc", "lwp-create", 0, 0, "struct thread *", "lwpsinfo_t *" },
 128         { "proc", "lwp-create", 1, 1, "struct proc *", "psinfo_t *" },
 129         /* proc:::lwp-start has no arguments */
 130         /* proc:::lwp-exit has no arguments */
 131         { "proc", "signal-clear", 0, 0, "int", NULL },
 132         { "proc", "signal-clear", 1, 1, "siginfo_t *", NULL },
 133         { "proc", "signal-discard", 0, 0, "struct thread *", "lwpsinfo_t *" },
 134         { "proc", "signal-discard", 1, 1, "struct proc *", "psinfo_t *" },
 135         { "proc", "signal-discard", 2, 2, "int", NULL },
 136         { "proc", "signal-handle", 0, 0, "int", NULL },
 137         { "proc", "signal-handle", 1, 1, "siginfo_t *", NULL },
 138         { "proc", "signal-handle", 2, 2, "void (*)(void)", NULL },
 139         { "proc", "signal-send", 0, 0, "struct thread *", "lwpsinfo_t *" },
 140         { "proc", "signal-send", 1, 1, "struct proc *", "psinfo_t *" },
 141         { "proc", "signal-send", 2, 2, "int", NULL },
 142         /* proc:::start has no arguments */
 143
 144         { "io", "start", 0, 0, "struct buf *", "bufinfo_t *" },
 145         { "io", "start", 1, 0, "struct buf *", "devinfo_t *" },
 146         { "io", "start", 2, 0, "struct buf *", "fileinfo_t *" },
 147         { "io", "done", 0, 0, "struct buf *", "bufinfo_t *" },
 148         { "io", "done", 1, 0, "struct buf *", "devinfo_t *" },
 149         { "io", "done", 2, 0, "struct buf *", "fileinfo_t *" },
 150         { "io", "wait-start", 0, 0, "struct buf *", "bufinfo_t *" },
 151         { "io", "wait-start", 1, 0, "struct buf *", "devinfo_t *" },
 152         { "io", "wait-start", 2, 0, "struct buf *", "fileinfo_t *" },
 153         { "io", "wait-done", 0, 0, "struct buf *", "bufinfo_t *" },
 154         { "io", "wait-done", 1, 0, "struct buf *", "devinfo_t *" },
 155         { "io", "wait-done", 2, 0, "struct buf *", "fileinfo_t *" },
 156
 157         { "vminfo", "anonfree", 0, 0, "int", NULL },
 158         { "vminfo", "anonpgin", 0, 0, "int", NULL },
 159         { "vminfo", "anonpgout", 0, 0, "int", NULL },
 160         { "vminfo", "as_fault", 0, 0, "int", NULL },
 161         { "vminfo", "cow_fault", 0, 0, "int", NULL },
 162         { "vminfo", "dfree", 0, 0, "int", NULL },
 163         { "vminfo", "execfree", 0, 0, "int", NULL },
 164         { "vminfo", "execpgin", 0, 0, "int", NULL },
 165         { "vminfo", "execpgout", 0, 0, "int", NULL },
 166         { "vminfo", "fsfree", 0, 0, "int", NULL },
 167         { "vminfo", "fspgin", 0, 0, "int", NULL },
 168         { "vminfo", "fspgout", 0, 0, "int", NULL },
 169         { "vminfo", "kerenl_asflt", 0, 0, "int", NULL },
 170         { "vminfo", "maj_fault", 0, 0, "int", NULL },
 171         { "vminfo", "pgfrec", 0, 0, "int", NULL },
 172         { "vminfo", "pgin", 0, 0, "int", NULL },
 173         { "vminfo", "pgout", 0, 0, "int", NULL },
 174         { "vminfo", "pgpgin", 0, 0, "int", NULL },
 175         { "vminfo", "pgpgout", 0, 0, "int", NULL },
 176         { "vminfo", "pgrec", 0, 0, "int", NULL },
 177         { "vminfo", "pgrrun", 0, 0, "int", NULL },
 178         { "vminfo", "pgswapin", 0, 0, "int", NULL },
 179         { "vminfo", "pgswapout", 0, 0, "int", NULL },
 180         { "vminfo", "prot_fault", 0, 0, "int", NULL },
 181         { "vminfo", "rev", 0, 0, "int", NULL },
 182         { "vminfo", "scan", 0, 0, "int", NULL },
 183         { "vminfo", "softlock", 0, 0, "int", NULL },
 184         { "vminfo", "swapin", 0, 0, "int", NULL },
 185         { "vminfo", "swapout", 0, 0, "int", NULL },
 186         { "vminfo", "zfod", 0, 0, "int", NULL },
 187
 188         { "mib", NULL, 0, 0, "int", NULL },
 189         { "fsinfo", NULL, 0, 0, "struct vnode *", "fileinfo_t *" },
 190         { "fsinfo", NULL, 1, 1, "int", "int" },
 191         { NULL }
 192 };
 193
 194 /*ARGSUSED*/
 195 void
 196 sdt_getargdesc(void *arg, dtrace_id_t id, void *parg, dtrace_argdesc_t *desc)
 197 {
 198 #pragma unused(arg, id)
 199         sdt_probe_t *sdp = parg;
 200         int i;
 201
 202         desc->dtargd_native[0] = '\0';
 203         desc->dtargd_xlate[0] = '\0';
 204
 205         for (i = 0; sdt_args[i].sda_provider != NULL; i++) {
 206                 sdt_argdesc_t *a = &sdt_args[i];
 207
 208                 if (strcmp(sdp->sdp_provider->sdtp_name, a->sda_provider) != 0)
 209                         continue;
 210
 211                 if (a->sda_name != NULL &&
 212                     strcmp(sdp->sdp_name, a->sda_name) != 0)
 213                         continue;
 214
 215                 if (desc->dtargd_ndx != a->sda_ndx)
 216                         continue;
 217
 218                 if (a->sda_native != NULL)
 219                         (void) strcpy(desc->dtargd_native, a->sda_native);
 220
 221                 if (a->sda_xlate != NULL)
 222                         (void) strcpy(desc->dtargd_xlate, a->sda_xlate);
 223
 224                 desc->dtargd_mapping = a->sda_mapping;
 225                 return;
 226         }
 227
 228         desc->dtargd_ndx = DTRACE_ARGNONE;
 229 }