[DTrace-devel] [PATCH 1/2] cc: remove dead code
Kris Van Hees
kris.van.hees at oracle.com
Thu Aug 24 15:13:18 UTC 2023
The legacy implementation of actions was retained in dt_cc.c for
reference, but now that almost all are implemented in the new code base
there is no reason to retain them.
Signed-off-by: Kris Van Hees <kris.van.hees at oracle.com>
---
libdtrace/dt_cc.c | 1304 ---------------------------------------------
1 file changed, 1304 deletions(-)
diff --git a/libdtrace/dt_cc.c b/libdtrace/dt_cc.c
index 90cb788f..86807caa 100644
--- a/libdtrace/dt_cc.c
+++ b/libdtrace/dt_cc.c
@@ -133,1310 +133,6 @@ dt_stmt_create(dtrace_hdl_t *dtp, dtrace_ecbdesc_t *edp,
return sdp;
}
-#ifdef FIXME
-/*
- * For the first element of an aggregation tuple or for printa(), we create a
- * simple DIF program that simply returns the immediate value that is the ID
- * of the aggregation itself. This could be optimized in the future by
- * creating a new in-kernel dtad_kind that just returns an integer.
- */
-static void
-dt_action_difconst(dtrace_actdesc_t *ap, uint_t id, dtrace_actkind_t kind)
-{
- dtrace_hdl_t *dtp = yypcb->pcb_hdl;
- dtrace_difo_t *dp = dt_zalloc(dtp, sizeof(dtrace_difo_t));
-
- if (dp == NULL)
- longjmp(yypcb->pcb_jmpbuf, EDT_NOMEM);
-
- dp->dtdo_buf = dt_calloc(dtp, 2, sizeof(dif_instr_t));
- if (dp->dtdo_buf == NULL) {
- dt_difo_free(dtp, dp);
- longjmp(yypcb->pcb_jmpbuf, EDT_NOMEM);
- }
-
- dp->dtdo_buf[0] = BPF_MOV_IMM(BPF_REG_0, 0); /* mov %r0, 0 */
- dp->dtdo_buf[1] = BPF_RETURN(); /* exit */
- dp->dtdo_len = 2;
- dp->dtdo_rtype = dt_int_rtype;
-
- ap->dtad_difo = dp;
- ap->dtad_kind = kind;
-}
-
-static void
-dt_action_clear(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dt_ident_t *aid;
- dtrace_actdesc_t *ap;
- dt_node_t *anp;
-
- char n[DT_TYPE_NAMELEN];
-
- anp = dnp->dn_args;
- assert(anp != NULL);
-
- if (anp->dn_kind != DT_NODE_AGG)
- dnerror(dnp, D_CLEAR_AGGARG,
- "%s( ) argument #1 is incompatible with prototype:\n"
- "\tprototype: aggregation\n\t argument: %s\n",
- dnp->dn_ident->di_name,
- dt_node_type_name(anp, n, sizeof(n)));
-
- aid = anp->dn_ident;
-
- if (aid->di_gen == dtp->dt_gen && !(aid->di_flags & DT_IDFLG_MOD))
- dnerror(dnp, D_CLEAR_AGGBAD,
- "undefined aggregation: @%s\n", aid->di_name);
-
- ap = dt_stmt_action(dtp, sdp);
- dt_action_difconst(ap, anp->dn_ident->di_id, DTRACEACT_LIBACT);
- ap->dtad_arg = DT_ACT_CLEAR;
-}
-
-static void
-dt_action_normalize(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dt_ident_t *aid;
- dtrace_actdesc_t *ap;
- dt_node_t *anp, *normal;
- int denormal = (strcmp(dnp->dn_ident->di_name, "denormalize") == 0);
-
- char n[DT_TYPE_NAMELEN];
- int argc = 0;
-
- for (anp = dnp->dn_args; anp != NULL; anp = anp->dn_list)
- argc++; /* count up arguments for error messages below */
-
- if ((denormal && argc != 1) || (!denormal && argc != 2)) {
- dnerror(dnp, D_NORMALIZE_PROTO,
- "%s( ) prototype mismatch: %d args passed, %d expected\n",
- dnp->dn_ident->di_name, argc, denormal ? 1 : 2);
- }
-
- anp = dnp->dn_args;
- assert(anp != NULL);
-
- if (anp->dn_kind != DT_NODE_AGG) {
- dnerror(dnp, D_NORMALIZE_AGGARG,
- "%s( ) argument #1 is incompatible with prototype:\n"
- "\tprototype: aggregation\n\t argument: %s\n",
- dnp->dn_ident->di_name,
- dt_node_type_name(anp, n, sizeof(n)));
- }
-
- if ((normal = anp->dn_list) != NULL && !dt_node_is_scalar(normal)) {
- dnerror(dnp, D_NORMALIZE_SCALAR,
- "%s( ) argument #2 must be of scalar type\n",
- dnp->dn_ident->di_name);
- }
-
- aid = anp->dn_ident;
-
- if (aid->di_gen == dtp->dt_gen && !(aid->di_flags & DT_IDFLG_MOD)) {
- dnerror(dnp, D_NORMALIZE_AGGBAD,
- "undefined aggregation: @%s\n", aid->di_name);
- }
-
- ap = dt_stmt_action(dtp, sdp);
- dt_action_difconst(ap, anp->dn_ident->di_id, DTRACEACT_LIBACT);
-
- if (denormal) {
- ap->dtad_arg = DT_ACT_DENORMALIZE;
- return;
- }
-
- ap->dtad_arg = DT_ACT_NORMALIZE;
-
- assert(normal != NULL);
- ap = dt_stmt_action(dtp, sdp);
- dt_cg(yypcb, normal);
-
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = DTRACEACT_LIBACT;
- ap->dtad_arg = DT_ACT_NORMALIZE;
-}
-
-static void
-dt_action_trunc(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dt_ident_t *aid;
- dtrace_actdesc_t *ap;
- dt_node_t *anp, *trunc;
-
- char n[DT_TYPE_NAMELEN];
- int argc = 0;
-
- for (anp = dnp->dn_args; anp != NULL; anp = anp->dn_list)
- argc++; /* count up arguments for error messages below */
-
- if (argc > 2 || argc < 1) {
- dnerror(dnp, D_TRUNC_PROTO,
- "%s( ) prototype mismatch: %d args passed, %s expected\n",
- dnp->dn_ident->di_name, argc,
- argc < 1 ? "at least 1" : "no more than 2");
- }
-
- anp = dnp->dn_args;
- assert(anp != NULL);
- trunc = anp->dn_list;
-
- if (anp->dn_kind != DT_NODE_AGG) {
- dnerror(dnp, D_TRUNC_AGGARG,
- "%s( ) argument #1 is incompatible with prototype:\n"
- "\tprototype: aggregation\n\t argument: %s\n",
- dnp->dn_ident->di_name,
- dt_node_type_name(anp, n, sizeof(n)));
- }
-
- if (argc == 2) {
- assert(trunc != NULL);
- if (!dt_node_is_scalar(trunc)) {
- dnerror(dnp, D_TRUNC_SCALAR,
- "%s( ) argument #2 must be of scalar type\n",
- dnp->dn_ident->di_name);
- }
- }
-
- aid = anp->dn_ident;
-
- if (aid->di_gen == dtp->dt_gen && !(aid->di_flags & DT_IDFLG_MOD)) {
- dnerror(dnp, D_TRUNC_AGGBAD,
- "undefined aggregation: @%s\n", aid->di_name);
- }
-
- ap = dt_stmt_action(dtp, sdp);
- dt_action_difconst(ap, anp->dn_ident->di_id, DTRACEACT_LIBACT);
- ap->dtad_arg = DT_ACT_TRUNC;
-
- ap = dt_stmt_action(dtp, sdp);
-
- if (argc == 1) {
- dt_action_difconst(ap, 0, DTRACEACT_LIBACT);
- } else {
- assert(trunc != NULL);
- dt_cg(yypcb, trunc);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = DTRACEACT_LIBACT;
- }
-
- ap->dtad_arg = DT_ACT_TRUNC;
-}
-
-static void
-dt_action_printa(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dt_ident_t *aid, *fid;
- dtrace_actdesc_t *ap;
- const char *format;
- dt_node_t *anp, *proto = NULL;
-
- char n[DT_TYPE_NAMELEN];
- int argc = 0, argr = 0;
-
- for (anp = dnp->dn_args; anp != NULL; anp = anp->dn_list)
- argc++; /* count up arguments for error messages below */
-
- switch (dnp->dn_args->dn_kind) {
- case DT_NODE_STRING:
- format = dnp->dn_args->dn_string;
- anp = dnp->dn_args->dn_list;
- argr = 2;
- break;
- case DT_NODE_AGG:
- format = NULL;
- anp = dnp->dn_args;
- argr = 1;
- break;
- default:
- format = NULL;
- anp = dnp->dn_args;
- argr = 1;
- }
-
- if (argc < argr) {
- dnerror(dnp, D_PRINTA_PROTO,
- "%s( ) prototype mismatch: %d args passed, %d expected\n",
- dnp->dn_ident->di_name, argc, argr);
- }
-
- assert(anp != NULL);
-
- while (anp != NULL) {
- if (anp->dn_kind != DT_NODE_AGG) {
- dnerror(dnp, D_PRINTA_AGGARG,
- "%s( ) argument #%d is incompatible with "
- "prototype:\n\tprototype: aggregation\n"
- "\t argument: %s\n", dnp->dn_ident->di_name, argr,
- dt_node_type_name(anp, n, sizeof(n)));
- }
-
- aid = anp->dn_ident;
- fid = aid->di_iarg;
-
- if (aid->di_gen == dtp->dt_gen &&
- !(aid->di_flags & DT_IDFLG_MOD)) {
- dnerror(dnp, D_PRINTA_AGGBAD,
- "undefined aggregation: @%s\n", aid->di_name);
- }
-
- /*
- * If we have multiple aggregations, we must be sure that
- * their key signatures match.
- */
- if (proto != NULL) {
- dt_printa_validate(proto, anp);
- } else {
- proto = anp;
- }
-
- if (format != NULL) {
- yylineno = dnp->dn_line;
-
- sdp->dtsd_fmtdata =
- dt_printf_create(yypcb->pcb_hdl, format);
- dt_printf_validate(sdp->dtsd_fmtdata,
- DT_PRINTF_AGGREGATION, dnp->dn_ident, 1,
- fid->di_id, ((dt_idsig_t *)aid->di_data)->dis_args);
- format = NULL;
- }
-
- ap = dt_stmt_action(dtp, sdp);
- dt_action_difconst(ap, anp->dn_ident->di_id, DTRACEACT_PRINTA);
-
- anp = anp->dn_list;
- argr++;
- }
-}
-
-static void
-dt_action_printflike(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp,
- dtrace_actkind_t kind)
-{
- dt_node_t *anp, *arg1;
- dtrace_actdesc_t *ap = NULL;
- char n[DT_TYPE_NAMELEN], *str;
-
- assert(DTRACEACT_ISPRINTFLIKE(kind));
-
- if (dnp->dn_args->dn_kind != DT_NODE_STRING) {
- dnerror(dnp, D_PRINTF_ARG_FMT,
- "%s( ) argument #1 is incompatible with prototype:\n"
- "\tprototype: string constant\n\t argument: %s\n",
- dnp->dn_ident->di_name,
- dt_node_type_name(dnp->dn_args, n, sizeof(n)));
- }
-
- arg1 = dnp->dn_args->dn_list;
- yylineno = dnp->dn_line;
- str = dnp->dn_args->dn_string;
-
-
- /*
- * If this is an freopen(), we use an empty string to denote that
- * stdout should be restored. For other printf()-like actions, an
- * empty format string is illegal: an empty format string would
- * result in malformed DOF, and the compiler thus flags an empty
- * format string as a compile-time error. To avoid propagating the
- * freopen() special case throughout the system, we simply transpose
- * an empty string into a sentinel string (DT_FREOPEN_RESTORE) that
- * denotes that stdout should be restored.
- */
- if (kind == DTRACEACT_FREOPEN) {
- if (strcmp(str, DT_FREOPEN_RESTORE) == 0) {
- /*
- * Our sentinel is always an invalid argument to
- * freopen(), but if it's been manually specified, we
- * must fail now instead of when the freopen() is
- * actually evaluated.
- */
- dnerror(dnp, D_FREOPEN_INVALID,
- "%s( ) argument #1 cannot be \"%s\"\n",
- dnp->dn_ident->di_name, DT_FREOPEN_RESTORE);
- }
-
- if (str[0] == '\0')
- str = DT_FREOPEN_RESTORE;
- }
-
- sdp->dtsd_fmtdata = dt_printf_create(dtp, str);
-
- dt_printf_validate(sdp->dtsd_fmtdata, DT_PRINTF_EXACTLEN,
- dnp->dn_ident, 1, DTRACEACT_AGGREGATION, arg1);
-
- if (arg1 == NULL) {
- struct bpf_insn *dbuf;
- dtrace_difo_t *dp;
-
- if ((dbuf = dt_alloc(dtp, sizeof(struct bpf_insn))) == NULL ||
- (dp = dt_zalloc(dtp, sizeof(dtrace_difo_t))) == NULL) {
- dt_free(dtp, dbuf);
- longjmp(yypcb->pcb_jmpbuf, EDT_NOMEM);
- }
-
- dbuf[0] = BPF_RETURN(); /* ret %r0 */
-
- dp->dtdo_buf = dbuf;
- dp->dtdo_len = 1;
- dp->dtdo_rtype = dt_int_rtype;
-
- ap = dt_stmt_action(dtp, sdp);
- ap->dtad_difo = dp;
- ap->dtad_kind = kind;
- return;
- }
-
- for (anp = arg1; anp != NULL; anp = anp->dn_list) {
- ap = dt_stmt_action(dtp, sdp);
- dt_cg(yypcb, anp);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = kind;
- }
-}
-
-static void
-dt_action_trace(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap = dt_stmt_action(dtp, sdp);
-
- if (dt_node_is_void(dnp->dn_args)) {
- dnerror(dnp->dn_args, D_TRACE_VOID,
- "trace( ) may not be applied to a void expression\n");
- }
-
- if (dt_node_is_dynamic(dnp->dn_args)) {
- dnerror(dnp->dn_args, D_TRACE_DYN,
- "trace( ) may not be applied to a dynamic expression\n");
- }
-
- dt_cg(yypcb, dnp->dn_args);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = DTRACEACT_DIFEXPR;
-}
-
-static void
-dt_action_tracemem(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap;
-
- dt_node_t *addr = dnp->dn_args;
- dt_node_t *size = dnp->dn_args->dn_list;
- dt_node_t *dsize;
-
- char n[DT_TYPE_NAMELEN];
-
- if (dt_node_is_integer(addr) == 0 && dt_node_is_pointer(addr) == 0) {
- dnerror(addr, D_TRACEMEM_ADDR,
- "tracemem( ) argument #1 is incompatible with "
- "prototype:\n\tprototype: pointer or integer\n"
- "\t argument: %s\n",
- dt_node_type_name(addr, n, sizeof(n)));
- }
-
- if (dt_node_is_posconst(size) == 0) {
- dnerror(size, D_TRACEMEM_SIZE, "tracemem( ) argument #2 must "
- "be a non-zero positive integral constant expression\n");
- }
-
- ap = dt_stmt_action(dtp, sdp);
- dt_cg(yypcb, addr);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = DTRACEACT_TRACEMEM;
- ap->dtad_difo->dtdo_rtype.dtdt_flags |= DIF_TF_BYREF;
- ap->dtad_difo->dtdo_rtype.dtdt_size = size->dn_value;
-
- if ((dsize = size->dn_list) != NULL) {
- ctf_file_t *fp = dsize->dn_ctfp;
- ctf_id_t type = dsize->dn_type;
- ctf_encoding_t e;
-
- ap->dtad_arg = DTRACE_TRACEMEM_DYNAMIC;
-
- ap = dt_stmt_action(dtp, sdp);
- dt_cg(yypcb, dsize);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = DTRACEACT_TRACEMEM;
-
- if (ctf_type_encoding(fp, ctf_type_resolve(fp, type), &e) == CTF_ERR)
- longjmp(yypcb->pcb_jmpbuf, EDT_CTF);
-
- if (e.cte_format & CTF_INT_SIGNED)
- ap->dtad_arg = DTRACE_TRACEMEM_SSIZE;
- else
- ap->dtad_arg = DTRACE_TRACEMEM_SIZE;
- } else {
- ap->dtad_arg = DTRACE_TRACEMEM_STATIC;
- }
-}
-
-static void
-dt_action_stack_args(dtrace_hdl_t *dtp, dtrace_actdesc_t *ap, dt_node_t *arg0)
-{
- ap->dtad_kind = DTRACEACT_STACK;
-
- if (dtp->dt_options[DTRACEOPT_STACKFRAMES] != DTRACEOPT_UNSET) {
- ap->dtad_arg = dtp->dt_options[DTRACEOPT_STACKFRAMES];
- } else {
- ap->dtad_arg = 0;
- }
-
- if (arg0 != NULL) {
- if (arg0->dn_list != NULL) {
- dnerror(arg0, D_STACK_PROTO, "stack( ) prototype "
- "mismatch: too many arguments\n");
- }
-
- if (dt_node_is_posconst(arg0) == 0) {
- dnerror(arg0, D_STACK_SIZE, "stack( ) size must be a "
- "non-zero positive integral constant expression\n");
- }
-
- ap->dtad_arg = arg0->dn_value;
- }
-}
-
-static void
-dt_action_stack(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap = dt_stmt_action(dtp, sdp);
- dt_action_stack_args(dtp, ap, dnp->dn_args);
-}
-
-static void
-dt_action_ustack_args(dtrace_hdl_t *dtp, dtrace_actdesc_t *ap, dt_node_t *dnp)
-{
- uint32_t nframes = 0;
- uint32_t strsize = 0; /* default string table size */
- dt_node_t *arg0 = dnp->dn_args;
- dt_node_t *arg1 = arg0 != NULL ? arg0->dn_list : NULL;
-
- assert(dnp->dn_ident->di_id == DT_ACT_JSTACK ||
- dnp->dn_ident->di_id == DT_ACT_USTACK);
-
- if (dnp->dn_ident->di_id == DT_ACT_JSTACK) {
- if (dtp->dt_options[DTRACEOPT_JSTACKFRAMES] != DTRACEOPT_UNSET)
- nframes = dtp->dt_options[DTRACEOPT_JSTACKFRAMES];
-
- if (dtp->dt_options[DTRACEOPT_JSTACKSTRSIZE] != DTRACEOPT_UNSET)
- strsize = dtp->dt_options[DTRACEOPT_JSTACKSTRSIZE];
-
- ap->dtad_kind = DTRACEACT_JSTACK;
- } else {
- assert(dnp->dn_ident->di_id == DT_ACT_USTACK);
-
- if (dtp->dt_options[DTRACEOPT_USTACKFRAMES] != DTRACEOPT_UNSET)
- nframes = dtp->dt_options[DTRACEOPT_USTACKFRAMES];
-
- ap->dtad_kind = DTRACEACT_USTACK;
- }
-
- if (arg0 != NULL) {
- if (!dt_node_is_posconst(arg0)) {
- dnerror(arg0, D_USTACK_FRAMES, "ustack( ) argument #1 "
- "must be a non-zero positive integer constant\n");
- }
- nframes = (uint32_t)arg0->dn_value;
- }
-
- if (arg1 != NULL) {
- if (arg1->dn_kind != DT_NODE_INT ||
- ((arg1->dn_flags & DT_NF_SIGNED) &&
- (int64_t)arg1->dn_value < 0)) {
- dnerror(arg1, D_USTACK_STRSIZE, "ustack( ) argument #2 "
- "must be a positive integer constant\n");
- }
-
- if (arg1->dn_list != NULL) {
- dnerror(arg1, D_USTACK_PROTO, "ustack( ) prototype "
- "mismatch: too many arguments\n");
- }
-
- strsize = (uint32_t)arg1->dn_value;
- }
-
- ap->dtad_arg = DTRACE_USTACK_ARG(nframes, strsize);
-}
-
-static void
-dt_action_ustack(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap = dt_stmt_action(dtp, sdp);
- dt_action_ustack_args(dtp, ap, dnp);
-}
-
-static void
-dt_action_setopt(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap;
- dt_node_t *arg0, *arg1;
-
- /*
- * The prototype guarantees that we are called with either one or
- * two arguments, and that any arguments that are present are strings.
- */
- arg0 = dnp->dn_args;
- arg1 = arg0->dn_list;
-
- ap = dt_stmt_action(dtp, sdp);
- dt_cg(yypcb, arg0);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = DTRACEACT_LIBACT;
- ap->dtad_arg = DT_ACT_SETOPT;
-
- ap = dt_stmt_action(dtp, sdp);
-
- if (arg1 == NULL) {
- dt_action_difconst(ap, 0, DTRACEACT_LIBACT);
- } else {
- dt_cg(yypcb, arg1);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = DTRACEACT_LIBACT;
- }
-
- ap->dtad_arg = DT_ACT_SETOPT;
-}
-
-/*ARGSUSED*/
-static void
-dt_action_symmod_args(dtrace_hdl_t *dtp, dtrace_actdesc_t *ap,
- dt_node_t *dnp, dtrace_actkind_t kind)
-{
- assert(kind == DTRACEACT_SYM || kind == DTRACEACT_MOD ||
- kind == DTRACEACT_USYM || kind == DTRACEACT_UMOD ||
- kind == DTRACEACT_UADDR);
-
- dt_cg(yypcb, dnp);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = kind;
- ap->dtad_difo->dtdo_rtype.dtdt_size = sizeof(uint64_t);
-}
-
-static void
-dt_action_symmod(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp,
- dtrace_actkind_t kind)
-{
- dtrace_actdesc_t *ap = dt_stmt_action(dtp, sdp);
- dt_action_symmod_args(dtp, ap, dnp->dn_args, kind);
-}
-
-/*ARGSUSED*/
-static void
-dt_action_ftruncate(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap = dt_stmt_action(dtp, sdp);
-
- /*
- * Library actions need a DIFO that serves as an argument. As
- * ftruncate() doesn't take an argument, we generate the constant 0
- * in a DIFO; this constant will be ignored when the ftruncate() is
- * processed.
- */
- dt_action_difconst(ap, 0, DTRACEACT_LIBACT);
- ap->dtad_arg = DT_ACT_FTRUNCATE;
-}
-
-/*ARGSUSED*/
-static void
-dt_action_stop(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap = dt_stmt_action(dtp, sdp);
-
- ap->dtad_kind = DTRACEACT_STOP;
- ap->dtad_arg = 0;
-}
-
-/*ARGSUSED*/
-static void
-dt_action_breakpoint(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap = dt_stmt_action(dtp, sdp);
-
- ap->dtad_kind = DTRACEACT_BREAKPOINT;
- ap->dtad_arg = 0;
-}
-
-/*ARGSUSED*/
-static void
-dt_action_panic(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap = dt_stmt_action(dtp, sdp);
-
- ap->dtad_kind = DTRACEACT_PANIC;
- ap->dtad_arg = 0;
-}
-
-static void
-dt_action_pcap(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap;
- dt_node_t *addr = dnp->dn_args;
- dt_node_t *anp, *proto;
- char n[DT_TYPE_NAMELEN];
- int argc = 0;
-
- for (anp = dnp->dn_args; anp != NULL; anp = anp->dn_list)
- argc++;
-
- if (argc != 2) {
- dnerror(dnp, D_PCAP_PROTO,
- "%s( ) prototype mismatch: %d args passed, 2 expected\n",
- dnp->dn_ident->di_name, argc);
- }
-
- if (dt_node_is_integer(addr) == 0 && dt_node_is_pointer(addr) == 0) {
- dnerror(addr, D_PCAP_ADDR,
- "pcap( ) argument #1 is incompatible with "
- "prototype:\n\tprototype: pointer or integer\n"
- "\t argument: %s\n",
- dt_node_type_name(addr, n, sizeof(n)));
- }
-
- proto = addr->dn_list;
-
- ap = dt_stmt_action(dtp, sdp);
- dt_cg(yypcb, addr);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = DTRACEACT_PCAP;
- ap->dtad_difo->dtdo_rtype.dtdt_flags |= DIF_TF_BYREF;
-
- /*
- * Enough space for 64-bit timestamp, len and pkt data.
- */
-
- ap->dtad_difo->dtdo_rtype.dtdt_size = (2 * sizeof(uint64_t)) +
- DT_PCAPSIZE(dtp->dt_options[DTRACEOPT_PCAPSIZE]);
- ap->dtad_arg = 0;
-
- ap = dt_stmt_action(dtp, sdp);
- dt_cg(yypcb, proto);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = DTRACEACT_PCAP;
-}
-
-static void
-dt_action_chill(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap = dt_stmt_action(dtp, sdp);
-
- dt_cg(yypcb, dnp->dn_args);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = DTRACEACT_CHILL;
-}
-
-static void
-dt_action_raise(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap = dt_stmt_action(dtp, sdp);
-
- dt_cg(yypcb, dnp->dn_args);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = DTRACEACT_RAISE;
-}
-
-static void
-dt_action_exit(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap = dt_stmt_action(dtp, sdp);
-
- dt_cg(yypcb, dnp->dn_args);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = DTRACEACT_EXIT;
- ap->dtad_difo->dtdo_rtype.dtdt_size = sizeof(int);
-}
-
-static void
-dt_action_speculate(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap = dt_stmt_action(dtp, sdp);
-
- dt_cg(yypcb, dnp->dn_args);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = DTRACEACT_SPECULATE;
-}
-
-static void
-dt_action_commit(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap = dt_stmt_action(dtp, sdp);
-
- dt_cg(yypcb, dnp->dn_args);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = DTRACEACT_COMMIT;
-}
-
-static void
-dt_action_discard(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap = dt_stmt_action(dtp, sdp);
-
- dt_cg(yypcb, dnp->dn_args);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = DTRACEACT_DISCARD;
-}
-
-static void
-dt_compile_fun(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- switch (dnp->dn_expr->dn_ident->di_id) {
- case DT_ACT_BREAKPOINT:
- dt_action_breakpoint(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_CHILL:
- dt_action_chill(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_CLEAR:
- dt_action_clear(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_COMMIT:
- dt_action_commit(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_DENORMALIZE:
- dt_action_normalize(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_DISCARD:
- dt_action_discard(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_EXIT:
- dt_action_exit(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_FREOPEN:
- dt_action_printflike(dtp, dnp->dn_expr, sdp, DTRACEACT_FREOPEN);
- break;
- case DT_ACT_FTRUNCATE:
- dt_action_ftruncate(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_MOD:
- dt_action_symmod(dtp, dnp->dn_expr, sdp, DTRACEACT_MOD);
- break;
- case DT_ACT_NORMALIZE:
- dt_action_normalize(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_PANIC:
- dt_action_panic(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_PCAP:
- dt_action_pcap(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_PRINTA:
- dt_action_printa(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_PRINTF:
- dt_action_printflike(dtp, dnp->dn_expr, sdp, DTRACEACT_PRINTF);
- break;
- case DT_ACT_RAISE:
- dt_action_raise(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_SETOPT:
- dt_action_setopt(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_SPECULATE:
- dt_action_speculate(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_STACK:
- dt_action_stack(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_STOP:
- dt_action_stop(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_SYM:
- dt_action_symmod(dtp, dnp->dn_expr, sdp, DTRACEACT_SYM);
- break;
- case DT_ACT_SYSTEM:
- dt_action_printflike(dtp, dnp->dn_expr, sdp, DTRACEACT_SYSTEM);
- break;
- case DT_ACT_TRACE:
- dt_action_trace(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_TRACEMEM:
- dt_action_tracemem(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_TRUNC:
- dt_action_trunc(dtp, dnp->dn_expr, sdp);
- break;
- case DT_ACT_UADDR:
- dt_action_symmod(dtp, dnp->dn_expr, sdp, DTRACEACT_UADDR);
- break;
- case DT_ACT_UMOD:
- dt_action_symmod(dtp, dnp->dn_expr, sdp, DTRACEACT_UMOD);
- break;
- case DT_ACT_USYM:
- dt_action_symmod(dtp, dnp->dn_expr, sdp, DTRACEACT_USYM);
- break;
- case DT_ACT_USTACK:
- case DT_ACT_JSTACK:
- dt_action_ustack(dtp, dnp->dn_expr, sdp);
- break;
- default:
- dnerror(dnp->dn_expr, D_UNKNOWN, "tracing function %s( ) is "
- "not yet supported\n", dnp->dn_expr->dn_ident->di_name);
- }
-}
-#endif
-
-#ifdef FIXME
-static void
-dt_compile_exp(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dtrace_actdesc_t *ap = dt_stmt_action(dtp, sdp);
-
- dt_cg(yypcb, dnp->dn_expr);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_difo->dtdo_rtype = dt_void_rtype;
- ap->dtad_kind = DTRACEACT_DIFEXPR;
-}
-
-static void
-dt_compile_agg(dtrace_hdl_t *dtp, dt_node_t *dnp, dtrace_stmtdesc_t *sdp)
-{
- dt_ident_t *aid, *fid;
- dt_node_t *anp, *incr = NULL;
- dtrace_actdesc_t *ap;
- uint_t n = 1, argmax;
- uint64_t arg = 0;
-
- /*
- * If the aggregation has no aggregating function applied to it, then
- * this statement has no effect. Flag this as a programming error.
- */
- if (dnp->dn_aggfun == NULL) {
- dnerror(dnp, D_AGG_NULL, "expression has null effect: @%s\n",
- dnp->dn_ident->di_name);
- }
-
- aid = dnp->dn_ident;
- fid = dnp->dn_aggfun->dn_ident;
-
- if (dnp->dn_aggfun->dn_args != NULL &&
- dt_node_is_scalar(dnp->dn_aggfun->dn_args) == 0) {
- dnerror(dnp->dn_aggfun, D_AGG_SCALAR, "%s( ) argument #1 must "
- "be of scalar type\n", fid->di_name);
- }
-
- /*
- * The ID of the aggregation itself is implicitly recorded as the first
- * member of each aggregation tuple so we can distinguish them later.
- */
- ap = dt_stmt_action(dtp, sdp);
- dt_action_difconst(ap, aid->di_id, DTRACEACT_DIFEXPR);
-
- for (anp = dnp->dn_aggtup; anp != NULL; anp = anp->dn_list) {
- ap = dt_stmt_action(dtp, sdp);
- n++;
-
- if (anp->dn_kind == DT_NODE_FUNC) {
- if (anp->dn_ident->di_id == DT_ACT_STACK) {
- dt_action_stack_args(dtp, ap, anp->dn_args);
- continue;
- }
-
- if (anp->dn_ident->di_id == DT_ACT_USTACK ||
- anp->dn_ident->di_id == DT_ACT_JSTACK) {
- dt_action_ustack_args(dtp, ap, anp);
- continue;
- }
-
- switch (anp->dn_ident->di_id) {
- case DT_ACT_UADDR:
- dt_action_symmod_args(dtp, ap,
- anp->dn_args, DTRACEACT_UADDR);
- continue;
-
- case DT_ACT_USYM:
- dt_action_symmod_args(dtp, ap,
- anp->dn_args, DTRACEACT_USYM);
- continue;
-
- case DT_ACT_UMOD:
- dt_action_symmod_args(dtp, ap,
- anp->dn_args, DTRACEACT_UMOD);
- continue;
-
- case DT_ACT_SYM:
- dt_action_symmod_args(dtp, ap,
- anp->dn_args, DTRACEACT_SYM);
- continue;
-
- case DT_ACT_MOD:
- dt_action_symmod_args(dtp, ap,
- anp->dn_args, DTRACEACT_MOD);
- continue;
-
- default:
- break;
- }
- }
-
- dt_cg(yypcb, anp);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_kind = DTRACEACT_DIFEXPR;
- }
-
- if (fid->di_id == DT_AGG_LQUANTIZE) {
- /*
- * For linear quantization, we have between two and four
- * arguments in addition to the expression:
- *
- * arg1 => Base value
- * arg2 => Limit value
- * arg3 => Quantization level step size (defaults to 1)
- * arg4 => Quantization increment value (defaults to 1)
- */
- dt_node_t *arg1 = dnp->dn_aggfun->dn_args->dn_list;
- dt_node_t *arg2 = arg1->dn_list;
- dt_node_t *arg3 = arg2->dn_list;
- dt_idsig_t *isp;
- uint64_t nlevels, step = 1, oarg;
- int64_t baseval, limitval;
-
- if (arg1->dn_kind != DT_NODE_INT) {
- dnerror(arg1, D_LQUANT_BASETYPE, "lquantize( ) "
- "argument #1 must be an integer constant\n");
- }
-
- baseval = (int64_t)arg1->dn_value;
-
- if (baseval < INT32_MIN || baseval > INT32_MAX) {
- dnerror(arg1, D_LQUANT_BASEVAL, "lquantize( ) "
- "argument #1 must be a 32-bit quantity\n");
- }
-
- if (arg2->dn_kind != DT_NODE_INT) {
- dnerror(arg2, D_LQUANT_LIMTYPE, "lquantize( ) "
- "argument #2 must be an integer constant\n");
- }
-
- limitval = (int64_t)arg2->dn_value;
-
- if (limitval < INT32_MIN || limitval > INT32_MAX) {
- dnerror(arg2, D_LQUANT_LIMVAL, "lquantize( ) "
- "argument #2 must be a 32-bit quantity\n");
- }
-
- if (limitval < baseval) {
- dnerror(dnp, D_LQUANT_MISMATCH,
- "lquantize( ) base (argument #1) must be less "
- "than limit (argument #2)\n");
- }
-
- if (arg3 != NULL) {
- if (!dt_node_is_posconst(arg3)) {
- dnerror(arg3, D_LQUANT_STEPTYPE, "lquantize( ) "
- "argument #3 must be a non-zero positive "
- "integer constant\n");
- }
-
- if ((step = arg3->dn_value) > UINT16_MAX) {
- dnerror(arg3, D_LQUANT_STEPVAL, "lquantize( ) "
- "argument #3 must be a 16-bit quantity\n");
- }
- }
-
- nlevels = (limitval - baseval) / step;
-
- if (nlevels == 0) {
- dnerror(dnp, D_LQUANT_STEPLARGE,
- "lquantize( ) step (argument #3) too large: must "
- "have at least one quantization level\n");
- }
-
- if (nlevels > UINT16_MAX) {
- dnerror(dnp, D_LQUANT_STEPSMALL, "lquantize( ) step "
- "(argument #3) too small: number of quantization "
- "levels must be a 16-bit quantity\n");
- }
-
- arg = (step << DTRACE_LQUANTIZE_STEPSHIFT) |
- (nlevels << DTRACE_LQUANTIZE_LEVELSHIFT) |
- ((baseval << DTRACE_LQUANTIZE_BASESHIFT) &
- DTRACE_LQUANTIZE_BASEMASK);
-
- assert(arg != 0);
-
- isp = (dt_idsig_t *)aid->di_data;
-
- if (isp->dis_auxinfo == 0) {
- /*
- * This is the first time we've seen an lquantize()
- * for this aggregation; we'll store our argument
- * as the auxiliary signature information.
- */
- isp->dis_auxinfo = arg;
- } else if ((oarg = isp->dis_auxinfo) != arg) {
- /*
- * If we have seen this lquantize() before and the
- * argument doesn't match the original argument, pick
- * the original argument apart to concisely report the
- * mismatch.
- */
- int obaseval = DTRACE_LQUANTIZE_BASE(oarg);
- int onlevels = DTRACE_LQUANTIZE_LEVELS(oarg);
- int ostep = DTRACE_LQUANTIZE_STEP(oarg);
-
- if (obaseval != baseval) {
- dnerror(dnp, D_LQUANT_MATCHBASE, "lquantize( ) "
- "base (argument #1) doesn't match previous "
- "declaration: expected %d, found %d\n",
- obaseval, (int)baseval);
- }
-
- if (onlevels * ostep != nlevels * step) {
- dnerror(dnp, D_LQUANT_MATCHLIM, "lquantize( ) "
- "limit (argument #2) doesn't match previous"
- " declaration: expected %d, found %d\n",
- obaseval + onlevels * ostep,
- (int)baseval + (int)nlevels * (int)step);
- }
-
- if (ostep != step) {
- dnerror(dnp, D_LQUANT_MATCHSTEP, "lquantize( ) "
- "step (argument #3) doesn't match previous "
- "declaration: expected %d, found %d\n",
- ostep, (int)step);
- }
-
- /*
- * We shouldn't be able to get here -- one of the
- * parameters must be mismatched if the arguments
- * didn't match.
- */
- assert(0);
- }
-
- incr = arg3 != NULL ? arg3->dn_list : NULL;
- argmax = 5;
- }
-
- if (fid->di_id == DT_AGG_LLQUANTIZE) {
- /*
- * For log linear quantization, we have four
- * arguments in addition to the expression:
- *
- * arg1 => Factor
- * arg2 => Lower magnitude
- * arg3 => Upper magnitude
- * arg4 => Steps per magnitude
- */
- dt_node_t *arg1 = dnp->dn_aggfun->dn_args->dn_list;
- dt_node_t *arg2 = arg1->dn_list;
- dt_node_t *arg3 = arg2->dn_list;
- dt_node_t *arg4 = arg3->dn_list;
- dt_idsig_t *isp;
- uint64_t factor, lmag, hmag, steps, oarg;
-
- if (arg1->dn_kind != DT_NODE_INT) {
- dnerror(arg1, D_LLQUANT_FACTORTYPE, "llquantize( ) "
- "argument #1 must be an integer constant\n");
- }
-
- factor = (uint64_t)arg1->dn_value;
-
- if (factor > UINT16_MAX || factor < 2) {
- dnerror(arg1, D_LLQUANT_FACTORVAL, "llquantize( ) "
- "argument #1 must be an unsigned 16-bit "
- "quantity greater than or equal to 2\n");
- }
-
- if (arg2->dn_kind != DT_NODE_INT) {
- dnerror(arg2, D_LLQUANT_LMAGTYPE, "llquantize( ) "
- "argument #2 must be an integer constant\n");
- }
-
- lmag = (uint64_t)arg2->dn_value;
-
- if (lmag > UINT16_MAX) {
- dnerror(arg2, D_LLQUANT_LMAGVAL, "llquantize( ) "
- "argument #2 must be an unsigned 16-bit "
- "quantity\n");
- }
-
- if (arg3->dn_kind != DT_NODE_INT) {
- dnerror(arg3, D_LLQUANT_HMAGTYPE, "llquantize( ) "
- "argument #3 must be an integer constant\n");
- }
-
- hmag = (uint64_t)arg3->dn_value;
-
- if (hmag > UINT16_MAX) {
- dnerror(arg3, D_LLQUANT_HMAGVAL, "llquantize( ) "
- "argument #3 must be an unsigned 16-bit "
- "quantity\n");
- }
-
- if (hmag < lmag) {
- dnerror(arg3, D_LLQUANT_HMAGVAL, "llquantize( ) "
- "argument #3 (high magnitude) must be at least "
- "argument #2 (low magnitude)\n");
- }
-
- if (powl(factor, hmag + 1) > (long double)UINT64_MAX) {
- dnerror(arg3, D_LLQUANT_HMAGVAL, "llquantize( ) "
- "argument #3 (high magnitude) will cause overflow "
- "of 64 bits\n");
- }
-
- if (arg4->dn_kind != DT_NODE_INT) {
- dnerror(arg4, D_LLQUANT_STEPTYPE, "llquantize( ) "
- "argument #4 must be an integer constant\n");
- }
-
- steps = (uint64_t)arg4->dn_value;
-
- if (steps > UINT16_MAX) {
- dnerror(arg4, D_LLQUANT_STEPVAL, "llquantize( ) "
- "argument #4 must be an unsigned 16-bit "
- "quantity\n");
- }
-
- if (steps < factor) {
- if (factor % steps != 0) {
- dnerror(arg1, D_LLQUANT_STEPVAL, "llquantize() "
- "argument #4 (steps) must evenly divide "
- "argument #1 (factor) when steps<factor\n");
- }
- }
- if (steps > factor) {
- if (steps % factor != 0) {
- dnerror(arg1, D_LLQUANT_STEPVAL, "llquantize() "
- "argument #4 (steps) must be a multiple of "
- "argument #1 (factor) when steps>factor\n");
- }
- if (lmag == 0) {
- if ((factor * factor) % steps != 0) {
- dnerror(arg1, D_LLQUANT_STEPVAL, "llquantize() "
- "argument #4 (steps) must evenly divide the square of "
- "argument #1 (factor) when steps>factor and "
- "lmag==0\n");
- }
- } else {
- unsigned long long ii = powl(factor, lmag + 1);
- if (ii % steps != 0) {
- dnerror(arg1, D_LLQUANT_STEPVAL, "llquantize() "
- "argument #4 (steps) must evenly divide pow("
- "argument #1 (factor), lmag "
- "(argument #2) + 1) "
- "when steps>factor and "
- "lmag==0\n");
- }
- }
- }
-
- arg = (steps << DTRACE_LLQUANTIZE_STEPSSHIFT |
- hmag << DTRACE_LLQUANTIZE_HMAGSHIFT |
- lmag << DTRACE_LLQUANTIZE_LMAGSHIFT |
- factor << DTRACE_LLQUANTIZE_FACTORSHIFT);
-
- assert(arg != 0);
-
- isp = (dt_idsig_t *)aid->di_data;
-
- if (isp->dis_auxinfo == 0) {
- /*
- * This is the first time we've seen an llquantize()
- * for this aggregation; we'll store our argument
- * as the auxiliary signature information.
- */
- isp->dis_auxinfo = arg;
- } else if ((oarg = isp->dis_auxinfo) != arg) {
- /*
- * If we have seen this llquantize() before and the
- * argument doesn't match the original argument, pick
- * the original argument apart to concisely report the
- * mismatch.
- */
- int ofactor = DTRACE_LLQUANTIZE_FACTOR(oarg);
- int olmag = DTRACE_LLQUANTIZE_LMAG(oarg);
- int ohmag = DTRACE_LLQUANTIZE_HMAG(oarg);
- int osteps = DTRACE_LLQUANTIZE_STEPS(oarg);
-
- if (ofactor != factor) {
- dnerror(dnp, D_LLQUANT_MATCHFACTOR,
- "llquantize() factor (argument #1) doesn't "
- "match previous declaration: expected %d, "
- "found %d\n", ofactor, (int)factor);
- }
-
- if (olmag != lmag) {
- dnerror(dnp, D_LLQUANT_MATCHLMAG,
- "llquantize() lmag (argument #2) doesn't "
- "match previous declaration: expected %d, "
- "found %d\n", olmag, (int)lmag);
- }
-
- if (ohmag != hmag) {
- dnerror(dnp, D_LLQUANT_MATCHHMAG,
- "llquantize() hmag (argument #3) doesn't "
- "match previous declaration: expected %d, "
- "found %d\n", ohmag, (int)hmag);
- }
-
- if (osteps != steps) {
- dnerror(dnp, D_LLQUANT_MATCHSTEPS,
- "llquantize() steps (argument #4) doesn't "
- "match previous declaration: expected %d, "
- "found %d\n", osteps, (int)steps);
- }
-
- /*
- * We shouldn't be able to get here -- one of the
- * parameters must be mismatched if the arguments
- * didn't match.
- */
- assert(0);
- }
-
- incr = arg4 != NULL ? arg4->dn_list : NULL;
- argmax = 6;
- }
-
- if (fid->di_id == DT_AGG_QUANTIZE) {
- incr = dnp->dn_aggfun->dn_args->dn_list;
- argmax = 2;
- }
-
- if (incr != NULL) {
- if (!dt_node_is_scalar(incr)) {
- dnerror(dnp, D_PROTO_ARG, "%s( ) increment value "
- "(argument #%d) must be of scalar type\n",
- fid->di_name, argmax);
- }
-
- if ((anp = incr->dn_list) != NULL) {
- int argc = argmax;
-
- for (; anp != NULL; anp = anp->dn_list)
- argc++;
-
- dnerror(incr, D_PROTO_LEN, "%s( ) prototype "
- "mismatch: %d args passed, at most %d expected",
- fid->di_name, argc, argmax);
- }
-
- ap = dt_stmt_action(dtp, sdp);
- n++;
-
- dt_cg(yypcb, incr);
- ap->dtad_difo = dt_as(yypcb);
- ap->dtad_difo->dtdo_rtype = dt_void_rtype;
- ap->dtad_kind = DTRACEACT_DIFEXPR;
- }
-
- assert(sdp->dtsd_aggdata == NULL);
- sdp->dtsd_aggdata = aid;
-
- ap = dt_stmt_action(dtp, sdp);
- assert(fid->di_kind == DT_IDENT_AGGFUNC);
- assert(DTRACEACT_ISAGG(fid->di_id));
- ap->dtad_kind = fid->di_id;
- ap->dtad_ntuple = n;
- ap->dtad_arg = arg;
-
- if (dnp->dn_aggfun->dn_args != NULL) {
- dt_cg(yypcb, dnp->dn_aggfun->dn_args);
- ap->dtad_difo = dt_as(yypcb);
- }
-}
-#endif
-
static dt_ident_t *
dt_clause_create(dtrace_hdl_t *dtp, dtrace_difo_t *dp)
{
--
2.40.1
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