Remove the DTrace printt and typeref actions.

These are FreeBSD-specific and were added in r178576 to provide the ability
to pretty-print instances of compound types. However, the print action has
long since been augmented to provide this functionality with a simpler
interface.

Discussed with:	gnn
Differential Revision:	https://reviews.freebsd.org/D8478
This commit is contained in:
Mark Johnston 2016-11-12 19:26:12 +00:00
parent f699532fb5
commit 375c8b20dc
8 changed files with 16 additions and 496 deletions

View File

@ -1057,46 +1057,6 @@ dt_action_printm(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
ap->dtad_difo->dtdo_rtype.dtdt_size = size->dn_value + sizeof(uintptr_t);
}
static void
dt_action_printt(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
{
dtrace_actdesc_t *ap = dt_stmt_action(dtp, sdp);
dt_node_t *size = dnp->dn_args;
dt_node_t *addr = dnp->dn_args->dn_list;
char n[DT_TYPE_NAMELEN];
if (dt_node_is_posconst(size) == 0) {
dnerror(size, D_PRINTT_SIZE, "printt( ) argument #1 must "
"be a non-zero positive integral constant expression\n");
}
if (addr == NULL || addr->dn_kind != DT_NODE_FUNC ||
addr->dn_ident != dt_idhash_lookup(dtp->dt_globals, "typeref")) {
dnerror(addr, D_PRINTT_ADDR,
"printt( ) argument #2 is incompatible with "
"prototype:\n\tprototype: typeref()\n"
"\t argument: %s\n",
dt_node_type_name(addr, n, sizeof (n)));
}
dt_cg(yypcb, addr);
ap->dtad_difo = dt_as(yypcb);
ap->dtad_kind = DTRACEACT_PRINTT;
ap->dtad_difo->dtdo_rtype.dtdt_flags |= DIF_TF_BYREF;
/*
* Allow additional buffer space for the data size, type size,
* type string length and a stab in the dark (32 bytes) for the
* type string. The type string is part of the typeref() that
* this action references.
*/
ap->dtad_difo->dtdo_rtype.dtdt_size = size->dn_value + 3 * sizeof(uintptr_t) + 32;
}
static void
dt_action_commit(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
{
@ -1169,9 +1129,6 @@ dt_compile_fun(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
case DT_ACT_PRINTM:
dt_action_printm(dtp, dnp->dn_expr, sdp);
break;
case DT_ACT_PRINTT:
dt_action_printt(dtp, dnp->dn_expr, sdp);
break;
case DT_ACT_RAISE:
dt_action_raise(dtp, dnp->dn_expr, sdp);
break;

View File

@ -1353,40 +1353,6 @@ dt_cg_inline(dt_node_t *dnp, dt_irlist_t *dlp, dt_regset_t *drp)
}
}
static void
dt_cg_func_typeref(dtrace_hdl_t *dtp, dt_node_t *dnp)
{
dtrace_typeinfo_t dtt;
dt_node_t *addr = dnp->dn_args;
dt_node_t *nelm = addr->dn_list;
dt_node_t *strp = nelm->dn_list;
dt_node_t *typs = strp->dn_list;
char buf[DT_TYPE_NAMELEN];
char *p;
ctf_type_name(addr->dn_ctfp, addr->dn_type, buf, sizeof (buf));
/*
* XXX Hack alert! XXX
* The prototype has two dummy args that we munge to represent
* the type string and the type size.
*
* Yes, I hear your grumble, but it works for now. We'll come
* up with a more elegant implementation later. :-)
*/
free(strp->dn_string);
if ((p = strchr(buf, '*')) != NULL)
*p = '\0';
strp->dn_string = strdup(buf);
if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, buf, &dtt) < 0)
return;
typs->dn_value = ctf_type_size(dtt.dtt_ctfp, dtt.dtt_type);
}
typedef struct dt_xlmemb {
dt_ident_t *dtxl_idp; /* translated ident */
dt_irlist_t *dtxl_dlp; /* instruction list */
@ -2002,8 +1968,6 @@ dt_cg_node(dt_node_t *dnp, dt_irlist_t *dlp, dt_regset_t *drp)
switch (dnp->dn_kind) {
case DT_NODE_FUNC: {
dtrace_hdl_t *dtp = yypcb->pcb_hdl;
if ((idp = dnp->dn_ident)->di_kind != DT_IDENT_FUNC) {
dnerror(dnp, D_CG_EXPR, "%s %s( ) may not be "
"called from a D expression (D program "
@ -2011,15 +1975,6 @@ dt_cg_node(dt_node_t *dnp, dt_irlist_t *dlp, dt_regset_t *drp)
dt_idkind_name(idp->di_kind), idp->di_name);
}
switch (idp->di_id) {
case DIF_SUBR_TYPEREF:
dt_cg_func_typeref(dtp, dnp);
break;
default:
break;
}
dt_cg_arglist(dnp->dn_ident, dnp->dn_args, dlp, drp);
dnp->dn_reg = dt_regset_alloc(drp);

View File

@ -1537,314 +1537,6 @@ dt_print_umod(dtrace_hdl_t *dtp, FILE *fp, const char *format, caddr_t addr)
return (err);
}
int
dt_print_memory(dtrace_hdl_t *dtp, FILE *fp, caddr_t addr)
{
int quiet = (dtp->dt_options[DTRACEOPT_QUIET] != DTRACEOPT_UNSET);
size_t nbytes = *((uintptr_t *) addr);
return (dt_print_bytes(dtp, fp, addr + sizeof(uintptr_t),
nbytes, 50, quiet, 1));
}
typedef struct dt_type_cbdata {
dtrace_hdl_t *dtp;
dtrace_typeinfo_t dtt;
caddr_t addr;
caddr_t addrend;
const char *name;
int f_type;
int indent;
int type_width;
int name_width;
FILE *fp;
} dt_type_cbdata_t;
static int dt_print_type_data(dt_type_cbdata_t *, ctf_id_t);
static int
dt_print_type_member(const char *name, ctf_id_t type, ulong_t off, void *arg)
{
dt_type_cbdata_t cbdata;
dt_type_cbdata_t *cbdatap = arg;
ssize_t ssz;
if ((ssz = ctf_type_size(cbdatap->dtt.dtt_ctfp, type)) <= 0)
return (0);
off /= 8;
cbdata = *cbdatap;
cbdata.name = name;
cbdata.addr += off;
cbdata.addrend = cbdata.addr + ssz;
return (dt_print_type_data(&cbdata, type));
}
static int
dt_print_type_width(const char *name, ctf_id_t type, ulong_t off, void *arg)
{
char buf[DT_TYPE_NAMELEN];
char *p;
dt_type_cbdata_t *cbdatap = arg;
size_t sz = strlen(name);
ctf_type_name(cbdatap->dtt.dtt_ctfp, type, buf, sizeof (buf));
if ((p = strchr(buf, '[')) != NULL)
p[-1] = '\0';
else
p = "";
sz += strlen(p);
if (sz > cbdatap->name_width)
cbdatap->name_width = sz;
sz = strlen(buf);
if (sz > cbdatap->type_width)
cbdatap->type_width = sz;
return (0);
}
static int
dt_print_type_data(dt_type_cbdata_t *cbdatap, ctf_id_t type)
{
caddr_t addr = cbdatap->addr;
caddr_t addrend = cbdatap->addrend;
char buf[DT_TYPE_NAMELEN];
char *p;
int cnt = 0;
uint_t kind = ctf_type_kind(cbdatap->dtt.dtt_ctfp, type);
ssize_t ssz = ctf_type_size(cbdatap->dtt.dtt_ctfp, type);
ctf_type_name(cbdatap->dtt.dtt_ctfp, type, buf, sizeof (buf));
if ((p = strchr(buf, '[')) != NULL)
p[-1] = '\0';
else
p = "";
if (cbdatap->f_type) {
int type_width = roundup(cbdatap->type_width + 1, 4);
int name_width = roundup(cbdatap->name_width + 1, 4);
name_width -= strlen(cbdatap->name);
dt_printf(cbdatap->dtp, cbdatap->fp, "%*s%-*s%s%-*s = ",cbdatap->indent * 4,"",type_width,buf,cbdatap->name,name_width,p);
}
while (addr < addrend) {
dt_type_cbdata_t cbdata;
ctf_arinfo_t arinfo;
ctf_encoding_t cte;
uintptr_t *up;
void *vp = addr;
cbdata = *cbdatap;
cbdata.name = "";
cbdata.addr = addr;
cbdata.addrend = addr + ssz;
cbdata.f_type = 0;
cbdata.indent++;
cbdata.type_width = 0;
cbdata.name_width = 0;
if (cnt > 0)
dt_printf(cbdatap->dtp, cbdatap->fp, "%*s", cbdatap->indent * 4,"");
switch (kind) {
case CTF_K_INTEGER:
if (ctf_type_encoding(cbdatap->dtt.dtt_ctfp, type, &cte) != 0)
return (-1);
if ((cte.cte_format & CTF_INT_SIGNED) != 0)
switch (cte.cte_bits) {
case 8:
if (isprint(*((char *) vp)))
dt_printf(cbdatap->dtp, cbdatap->fp, "'%c', ", *((char *) vp));
dt_printf(cbdatap->dtp, cbdatap->fp, "%d (0x%x);\n", *((char *) vp), *((char *) vp));
break;
case 16:
dt_printf(cbdatap->dtp, cbdatap->fp, "%hd (0x%hx);\n", *((short *) vp), *((u_short *) vp));
break;
case 32:
dt_printf(cbdatap->dtp, cbdatap->fp, "%d (0x%x);\n", *((int *) vp), *((u_int *) vp));
break;
case 64:
dt_printf(cbdatap->dtp, cbdatap->fp, "%jd (0x%jx);\n", *((long long *) vp), *((unsigned long long *) vp));
break;
default:
dt_printf(cbdatap->dtp, cbdatap->fp, "CTF_K_INTEGER: format %x offset %u bits %u\n",cte.cte_format,cte.cte_offset,cte.cte_bits);
break;
}
else
switch (cte.cte_bits) {
case 8:
dt_printf(cbdatap->dtp, cbdatap->fp, "%u (0x%x);\n", *((uint8_t *) vp) & 0xff, *((uint8_t *) vp) & 0xff);
break;
case 16:
dt_printf(cbdatap->dtp, cbdatap->fp, "%hu (0x%hx);\n", *((u_short *) vp), *((u_short *) vp));
break;
case 32:
dt_printf(cbdatap->dtp, cbdatap->fp, "%u (0x%x);\n", *((u_int *) vp), *((u_int *) vp));
break;
case 64:
dt_printf(cbdatap->dtp, cbdatap->fp, "%ju (0x%jx);\n", *((unsigned long long *) vp), *((unsigned long long *) vp));
break;
default:
dt_printf(cbdatap->dtp, cbdatap->fp, "CTF_K_INTEGER: format %x offset %u bits %u\n",cte.cte_format,cte.cte_offset,cte.cte_bits);
break;
}
break;
case CTF_K_FLOAT:
dt_printf(cbdatap->dtp, cbdatap->fp, "CTF_K_FLOAT: format %x offset %u bits %u\n",cte.cte_format,cte.cte_offset,cte.cte_bits);
break;
case CTF_K_POINTER:
dt_printf(cbdatap->dtp, cbdatap->fp, "%p;\n", *((void **) addr));
break;
case CTF_K_ARRAY:
if (ctf_array_info(cbdatap->dtt.dtt_ctfp, type, &arinfo) != 0)
return (-1);
dt_printf(cbdatap->dtp, cbdatap->fp, "{\n%*s",cbdata.indent * 4,"");
dt_print_type_data(&cbdata, arinfo.ctr_contents);
dt_printf(cbdatap->dtp, cbdatap->fp, "%*s};\n",cbdatap->indent * 4,"");
break;
case CTF_K_FUNCTION:
dt_printf(cbdatap->dtp, cbdatap->fp, "CTF_K_FUNCTION:\n");
break;
case CTF_K_STRUCT:
cbdata.f_type = 1;
if (ctf_member_iter(cbdatap->dtt.dtt_ctfp, type,
dt_print_type_width, &cbdata) != 0)
return (-1);
dt_printf(cbdatap->dtp, cbdatap->fp, "{\n");
if (ctf_member_iter(cbdatap->dtt.dtt_ctfp, type,
dt_print_type_member, &cbdata) != 0)
return (-1);
dt_printf(cbdatap->dtp, cbdatap->fp, "%*s};\n",cbdatap->indent * 4,"");
break;
case CTF_K_UNION:
cbdata.f_type = 1;
if (ctf_member_iter(cbdatap->dtt.dtt_ctfp, type,
dt_print_type_width, &cbdata) != 0)
return (-1);
dt_printf(cbdatap->dtp, cbdatap->fp, "{\n");
if (ctf_member_iter(cbdatap->dtt.dtt_ctfp, type,
dt_print_type_member, &cbdata) != 0)
return (-1);
dt_printf(cbdatap->dtp, cbdatap->fp, "%*s};\n",cbdatap->indent * 4,"");
break;
case CTF_K_ENUM:
dt_printf(cbdatap->dtp, cbdatap->fp, "%s;\n", ctf_enum_name(cbdatap->dtt.dtt_ctfp, type, *((int *) vp)));
break;
case CTF_K_TYPEDEF:
dt_print_type_data(&cbdata, ctf_type_reference(cbdatap->dtt.dtt_ctfp,type));
break;
case CTF_K_VOLATILE:
if (cbdatap->f_type)
dt_printf(cbdatap->dtp, cbdatap->fp, "volatile ");
dt_print_type_data(&cbdata, ctf_type_reference(cbdatap->dtt.dtt_ctfp,type));
break;
case CTF_K_CONST:
if (cbdatap->f_type)
dt_printf(cbdatap->dtp, cbdatap->fp, "const ");
dt_print_type_data(&cbdata, ctf_type_reference(cbdatap->dtt.dtt_ctfp,type));
break;
case CTF_K_RESTRICT:
if (cbdatap->f_type)
dt_printf(cbdatap->dtp, cbdatap->fp, "restrict ");
dt_print_type_data(&cbdata, ctf_type_reference(cbdatap->dtt.dtt_ctfp,type));
break;
default:
break;
}
addr += ssz;
cnt++;
}
return (0);
}
static int
dt_print_type(dtrace_hdl_t *dtp, FILE *fp, caddr_t addr)
{
caddr_t addrend;
char *p;
dtrace_typeinfo_t dtt;
dt_type_cbdata_t cbdata;
int num = 0;
int quiet = (dtp->dt_options[DTRACEOPT_QUIET] != DTRACEOPT_UNSET);
ssize_t ssz;
if (!quiet)
dt_printf(dtp, fp, "\n");
/* Get the total number of bytes of data buffered. */
size_t nbytes = *((uintptr_t *) addr);
addr += sizeof(uintptr_t);
/*
* Get the size of the type so that we can check that it matches
* the CTF data we look up and so that we can figure out how many
* type elements are buffered.
*/
size_t typs = *((uintptr_t *) addr);
addr += sizeof(uintptr_t);
/*
* Point to the type string in the buffer. Get it's string
* length and round it up to become the offset to the start
* of the buffered type data which we would like to be aligned
* for easy access.
*/
char *strp = (char *) addr;
int offset = roundup(strlen(strp) + 1, sizeof(uintptr_t));
/*
* The type string might have a format such as 'int [20]'.
* Check if there is an array dimension present.
*/
if ((p = strchr(strp, '[')) != NULL) {
/* Strip off the array dimension. */
*p++ = '\0';
for (; *p != '\0' && *p != ']'; p++)
num = num * 10 + *p - '0';
} else
/* No array dimension, so default. */
num = 1;
/* Lookup the CTF type from the type string. */
if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, strp, &dtt) < 0)
return (-1);
/* Offset the buffer address to the start of the data... */
addr += offset;
ssz = ctf_type_size(dtt.dtt_ctfp, dtt.dtt_type);
if (typs != ssz) {
printf("Expected type size from buffer (%lu) to match type size looked up now (%ld)\n", (u_long) typs, (long) ssz);
return (-1);
}
cbdata.dtp = dtp;
cbdata.dtt = dtt;
cbdata.name = "";
cbdata.addr = addr;
cbdata.addrend = addr + nbytes;
cbdata.indent = 1;
cbdata.f_type = 1;
cbdata.type_width = 0;
cbdata.name_width = 0;
cbdata.fp = fp;
return (dt_print_type_data(&cbdata, dtt.dtt_type));
}
static int
dt_print_sym(dtrace_hdl_t *dtp, FILE *fp, const char *format, caddr_t addr)
{
@ -1904,6 +1596,16 @@ dt_print_mod(dtrace_hdl_t *dtp, FILE *fp, const char *format, caddr_t addr)
return (0);
}
static int
dt_print_memory(dtrace_hdl_t *dtp, FILE *fp, caddr_t addr)
{
int quiet = (dtp->dt_options[DTRACEOPT_QUIET] != DTRACEOPT_UNSET);
size_t nbytes = *((uintptr_t *) addr);
return (dt_print_bytes(dtp, fp, addr + sizeof(uintptr_t),
nbytes, 50, quiet, 1));
}
typedef struct dt_normal {
dtrace_aggvarid_t dtnd_id;
uint64_t dtnd_normal;
@ -2644,12 +2346,6 @@ dt_consume_cpu(dtrace_hdl_t *dtp, FILE *fp, int cpu,
goto nextrec;
}
if (act == DTRACEACT_PRINTT) {
if (dt_print_type(dtp, fp, addr) < 0)
return (-1);
goto nextrec;
}
if (DTRACEACT_ISPRINTFLIKE(act)) {
void *fmtdata;
int (*func)(dtrace_hdl_t *, FILE *, void *,

View File

@ -265,8 +265,6 @@ typedef enum {
D_NOREG, /* no available internal registers */
D_PRINTM_ADDR, /* printm() memref bad type */
D_PRINTM_SIZE, /* printm() size bad type */
D_PRINTT_ADDR, /* printt() typeref bad type */
D_PRINTT_SIZE /* printt() size bad type */
} dt_errtag_t;
extern const char *dt_errtag(dt_errtag_t);

View File

@ -488,7 +488,6 @@ struct dtrace_hdl {
#define DT_ACT_SETOPT DT_ACT(28) /* setopt() action */
#define DT_ACT_PRINT DT_ACT(29) /* print() action */
#define DT_ACT_PRINTM DT_ACT(30) /* printm() action */
#define DT_ACT_PRINTT DT_ACT(31) /* printt() action */
/*
* Sentinel to tell freopen() to restore the saved stdout. This must not

View File

@ -392,8 +392,6 @@ static const dt_ident_t _dtrace_globals[] = {
&dt_idops_func, "void(@, ...)" },
{ "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0,
&dt_idops_func, "void(size_t, uintptr_t *)" },
{ "printt", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTT, DT_ATTR_STABCMN, DT_VERS_1_0,
&dt_idops_func, "void(size_t, uintptr_t *)" },
{ "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC,
DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
{ "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD,
@ -505,8 +503,6 @@ static const dt_ident_t _dtrace_globals[] = {
&dt_idops_func, "void(@, size_t, ...)" },
{ "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN,
DT_VERS_1_0, &dt_idops_func, "void(...)" },
{ "typeref", DT_IDENT_FUNC, 0, DIF_SUBR_TYPEREF, DT_ATTR_STABCMN, DT_VERS_1_1,
&dt_idops_func, "uintptr_t *(void *, size_t, string, size_t)" },
{ "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN,
DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
{ "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN,

View File

@ -6042,22 +6042,6 @@ inetout: regs[rd] = (uintptr_t)end + 1;
break;
}
#endif
case DIF_SUBR_TYPEREF: {
uintptr_t size = 4 * sizeof(uintptr_t);
uintptr_t *typeref = (uintptr_t *) P2ROUNDUP(mstate->dtms_scratch_ptr, sizeof(uintptr_t));
size_t scratch_size = ((uintptr_t) typeref - mstate->dtms_scratch_ptr) + size;
/* address, num_elements, type_str, type_len */
typeref[0] = tupregs[0].dttk_value;
typeref[1] = tupregs[1].dttk_value;
typeref[2] = tupregs[2].dttk_value;
typeref[3] = tupregs[3].dttk_value;
regs[rd] = (uintptr_t) typeref;
mstate->dtms_scratch_ptr += scratch_size;
break;
}
}
}
@ -7707,66 +7691,6 @@ dtrace_probe(dtrace_id_t id, uintptr_t arg0, uintptr_t arg1,
break;
}
case DTRACEACT_PRINTT: {
/* The DIF returns a 'typeref'. */
uintptr_t *typeref = (uintptr_t *)(uintptr_t) val;
char c = '\0' + 1;
size_t s;
/*
* Get the type string length and round it
* up so that the data that follows is
* aligned for easy access.
*/
size_t typs = strlen((char *) typeref[2]) + 1;
typs = roundup(typs, sizeof(uintptr_t));
/*
*Get the size from the typeref using the
* number of elements and the type size.
*/
size = typeref[1] * typeref[3];
/*
* Check if the size exceeds the allocated
* buffer size.
*/
if (size + typs + 2 * sizeof(uintptr_t) > dp->dtdo_rtype.dtdt_size) {
/* Flag a drop! */
*flags |= CPU_DTRACE_DROP;
}
/* Store the size in the buffer first. */
DTRACE_STORE(uintptr_t, tomax,
valoffs, size);
valoffs += sizeof(uintptr_t);
/* Store the type size in the buffer. */
DTRACE_STORE(uintptr_t, tomax,
valoffs, typeref[3]);
valoffs += sizeof(uintptr_t);
val = typeref[2];
for (s = 0; s < typs; s++) {
if (c != '\0')
c = dtrace_load8(val++);
DTRACE_STORE(uint8_t, tomax,
valoffs++, c);
}
/*
* Reset to the memory address rather than
* the typeref array, then let the BYREF
* code below do the work to store the
* memory data in the buffer.
*/
val = typeref[0];
break;
}
case DTRACEACT_CHILL:
if (dtrace_priv_kernel_destructive(state))
dtrace_action_chill(&mstate, val);
@ -10342,12 +10266,12 @@ dtrace_difo_validate_helper(dtrace_difo_t *dp)
subr == DIF_SUBR_NTOHS ||
subr == DIF_SUBR_NTOHL ||
subr == DIF_SUBR_NTOHLL ||
subr == DIF_SUBR_MEMREF ||
#ifndef illumos
subr == DIF_SUBR_MEMSTR ||
#endif
subr == DIF_SUBR_TYPEREF)
subr == DIF_SUBR_MEMREF)
break;
#ifdef __FreeBSD__
if (subr == DIF_SUBR_MEMSTR)
break;
#endif
err += efunc(pc, "invalid subr %u\n", subr);
break;
@ -11647,10 +11571,6 @@ dtrace_ecb_action_add(dtrace_ecb_t *ecb, dtrace_actdesc_t *desc)
size = dp->dtdo_rtype.dtdt_size;
break;
case DTRACEACT_PRINTT:
size = dp->dtdo_rtype.dtdt_size;
break;
case DTRACEACT_COMMIT: {
dtrace_action_t *act = ecb->dte_action;

View File

@ -308,7 +308,7 @@ typedef enum dtrace_probespec {
#define DIF_SUBR_TOUPPER 44
#define DIF_SUBR_TOLOWER 45
#define DIF_SUBR_MEMREF 46
#define DIF_SUBR_TYPEREF 47
#define DIF_SUBR_UNUSED 47
#define DIF_SUBR_SX_SHARED_HELD 48
#define DIF_SUBR_SX_EXCLUSIVE_HELD 49
#define DIF_SUBR_SX_ISEXCLUSIVE 50
@ -429,7 +429,6 @@ typedef struct dtrace_difv {
#define DTRACEACT_TRACEMEM 6 /* tracemem() action */
#define DTRACEACT_TRACEMEM_DYNSIZE 7 /* dynamic tracemem() size */
#define DTRACEACT_PRINTM 8 /* printm() action (BSD) */
#define DTRACEACT_PRINTT 9 /* printt() action (BSD) */
#define DTRACEACT_PROC 0x0100
#define DTRACEACT_USTACK (DTRACEACT_PROC + 1)