/cddl/contrib/opensolaris/lib/libdtrace/common/dt_dis.c
C | 511 lines | 411 code | 64 blank | 36 comment | 40 complexity | 982e1c29b87f501263088054ef03cbc1 MD5 | raw file
- /*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License, Version 1.0 only
- * (the "License"). You may not use this file except in compliance
- * with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
- /*
- * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
- * Use is subject to license terms.
- */
- #pragma ident "%Z%%M% %I% %E% SMI"
- #include <strings.h>
- #include <stdio.h>
- #include <dt_impl.h>
- #include <dt_ident.h>
- /*ARGSUSED*/
- static void
- dt_dis_log(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
- {
- (void) fprintf(fp, "%-4s %%r%u, %%r%u, %%r%u", name,
- DIF_INSTR_R1(in), DIF_INSTR_R2(in), DIF_INSTR_RD(in));
- }
- /*ARGSUSED*/
- static void
- dt_dis_branch(const dtrace_difo_t *dp, const char *name,
- dif_instr_t in, FILE *fp)
- {
- (void) fprintf(fp, "%-4s %u", name, DIF_INSTR_LABEL(in));
- }
- /*ARGSUSED*/
- static void
- dt_dis_load(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
- {
- (void) fprintf(fp, "%-4s [%%r%u], %%r%u", name,
- DIF_INSTR_R1(in), DIF_INSTR_RD(in));
- }
- /*ARGSUSED*/
- static void
- dt_dis_store(const dtrace_difo_t *dp, const char *name,
- dif_instr_t in, FILE *fp)
- {
- (void) fprintf(fp, "%-4s %%r%u, [%%r%u]", name,
- DIF_INSTR_R1(in), DIF_INSTR_RD(in));
- }
- /*ARGSUSED*/
- static void
- dt_dis_str(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
- {
- (void) fprintf(fp, "%s", name);
- }
- /*ARGSUSED*/
- static void
- dt_dis_r1rd(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
- {
- (void) fprintf(fp, "%-4s %%r%u, %%r%u", name,
- DIF_INSTR_R1(in), DIF_INSTR_RD(in));
- }
- /*ARGSUSED*/
- static void
- dt_dis_cmp(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
- {
- (void) fprintf(fp, "%-4s %%r%u, %%r%u", name,
- DIF_INSTR_R1(in), DIF_INSTR_R2(in));
- }
- /*ARGSUSED*/
- static void
- dt_dis_tst(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
- {
- (void) fprintf(fp, "%-4s %%r%u", name, DIF_INSTR_R1(in));
- }
- static const char *
- dt_dis_varname(const dtrace_difo_t *dp, uint_t id, uint_t scope)
- {
- const dtrace_difv_t *dvp = dp->dtdo_vartab;
- uint_t i;
- for (i = 0; i < dp->dtdo_varlen; i++, dvp++) {
- if (dvp->dtdv_id == id && dvp->dtdv_scope == scope) {
- if (dvp->dtdv_name < dp->dtdo_strlen)
- return (dp->dtdo_strtab + dvp->dtdv_name);
- break;
- }
- }
- return (NULL);
- }
- static uint_t
- dt_dis_scope(const char *name)
- {
- switch (name[2]) {
- case 'l': return (DIFV_SCOPE_LOCAL);
- case 't': return (DIFV_SCOPE_THREAD);
- case 'g': return (DIFV_SCOPE_GLOBAL);
- default: return (-1u);
- }
- }
- static void
- dt_dis_lda(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
- {
- uint_t var = DIF_INSTR_R1(in);
- const char *vname;
- (void) fprintf(fp, "%-4s DT_VAR(%u), %%r%u, %%r%u", name,
- var, DIF_INSTR_R2(in), DIF_INSTR_RD(in));
- if ((vname = dt_dis_varname(dp, var, dt_dis_scope(name))) != NULL)
- (void) fprintf(fp, "\t\t! DT_VAR(%u) = \"%s\"", var, vname);
- }
- static void
- dt_dis_ldv(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
- {
- uint_t var = DIF_INSTR_VAR(in);
- const char *vname;
- (void) fprintf(fp, "%-4s DT_VAR(%u), %%r%u",
- name, var, DIF_INSTR_RD(in));
- if ((vname = dt_dis_varname(dp, var, dt_dis_scope(name))) != NULL)
- (void) fprintf(fp, "\t\t! DT_VAR(%u) = \"%s\"", var, vname);
- }
- static void
- dt_dis_stv(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
- {
- uint_t var = DIF_INSTR_VAR(in);
- const char *vname;
- (void) fprintf(fp, "%-4s %%r%u, DT_VAR(%u)",
- name, DIF_INSTR_RS(in), var);
- if ((vname = dt_dis_varname(dp, var, dt_dis_scope(name))) != NULL)
- (void) fprintf(fp, "\t\t! DT_VAR(%u) = \"%s\"", var, vname);
- }
- static void
- dt_dis_setx(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
- {
- uint_t intptr = DIF_INSTR_INTEGER(in);
- (void) fprintf(fp, "%-4s DT_INTEGER[%u], %%r%u", name,
- intptr, DIF_INSTR_RD(in));
- if (intptr < dp->dtdo_intlen) {
- (void) fprintf(fp, "\t\t! 0x%llx",
- (u_longlong_t)dp->dtdo_inttab[intptr]);
- }
- }
- static void
- dt_dis_sets(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
- {
- uint_t strptr = DIF_INSTR_STRING(in);
- (void) fprintf(fp, "%-4s DT_STRING[%u], %%r%u", name,
- strptr, DIF_INSTR_RD(in));
- if (strptr < dp->dtdo_strlen)
- (void) fprintf(fp, "\t\t! \"%s\"", dp->dtdo_strtab + strptr);
- }
- /*ARGSUSED*/
- static void
- dt_dis_ret(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
- {
- (void) fprintf(fp, "%-4s %%r%u", name, DIF_INSTR_RD(in));
- }
- /*ARGSUSED*/
- static void
- dt_dis_call(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
- {
- uint_t subr = DIF_INSTR_SUBR(in);
- (void) fprintf(fp, "%-4s DIF_SUBR(%u), %%r%u\t\t! %s",
- name, subr, DIF_INSTR_RD(in), dtrace_subrstr(NULL, subr));
- }
- /*ARGSUSED*/
- static void
- dt_dis_pushts(const dtrace_difo_t *dp,
- const char *name, dif_instr_t in, FILE *fp)
- {
- static const char *const tnames[] = { "D type", "string" };
- uint_t type = DIF_INSTR_TYPE(in);
- (void) fprintf(fp, "%-4s DT_TYPE(%u), %%r%u, %%r%u",
- name, type, DIF_INSTR_R2(in), DIF_INSTR_RS(in));
- if (type < sizeof (tnames) / sizeof (tnames[0]))
- (void) fprintf(fp, "\t! DT_TYPE(%u) = %s", type, tnames[type]);
- }
- static void
- dt_dis_xlate(const dtrace_difo_t *dp,
- const char *name, dif_instr_t in, FILE *fp)
- {
- uint_t xlr = DIF_INSTR_XLREF(in);
- (void) fprintf(fp, "%-4s DT_XLREF[%u], %%r%u",
- name, xlr, DIF_INSTR_RD(in));
- if (xlr < dp->dtdo_xlmlen) {
- (void) fprintf(fp, "\t\t! DT_XLREF[%u] = %u.%s", xlr,
- (uint_t)dp->dtdo_xlmtab[xlr]->dn_membexpr->dn_xlator->dx_id,
- dp->dtdo_xlmtab[xlr]->dn_membname);
- }
- }
- static char *
- dt_dis_typestr(const dtrace_diftype_t *t, char *buf, size_t len)
- {
- char kind[16], ckind[16];
- switch (t->dtdt_kind) {
- case DIF_TYPE_CTF:
- (void) strcpy(kind, "D type");
- break;
- case DIF_TYPE_STRING:
- (void) strcpy(kind, "string");
- break;
- default:
- (void) snprintf(kind, sizeof (kind), "0x%x", t->dtdt_kind);
- }
- switch (t->dtdt_ckind) {
- case CTF_K_UNKNOWN:
- (void) strcpy(ckind, "unknown");
- break;
- case CTF_K_INTEGER:
- (void) strcpy(ckind, "integer");
- break;
- case CTF_K_FLOAT:
- (void) strcpy(ckind, "float");
- break;
- case CTF_K_POINTER:
- (void) strcpy(ckind, "pointer");
- break;
- case CTF_K_ARRAY:
- (void) strcpy(ckind, "array");
- break;
- case CTF_K_FUNCTION:
- (void) strcpy(ckind, "function");
- break;
- case CTF_K_STRUCT:
- (void) strcpy(ckind, "struct");
- break;
- case CTF_K_UNION:
- (void) strcpy(ckind, "union");
- break;
- case CTF_K_ENUM:
- (void) strcpy(ckind, "enum");
- break;
- case CTF_K_FORWARD:
- (void) strcpy(ckind, "forward");
- break;
- case CTF_K_TYPEDEF:
- (void) strcpy(ckind, "typedef");
- break;
- case CTF_K_VOLATILE:
- (void) strcpy(ckind, "volatile");
- break;
- case CTF_K_CONST:
- (void) strcpy(ckind, "const");
- break;
- case CTF_K_RESTRICT:
- (void) strcpy(ckind, "restrict");
- break;
- default:
- (void) snprintf(ckind, sizeof (ckind), "0x%x", t->dtdt_ckind);
- }
- if (t->dtdt_flags & DIF_TF_BYREF) {
- (void) snprintf(buf, len, "%s (%s) by ref (size %lu)",
- kind, ckind, (ulong_t)t->dtdt_size);
- } else {
- (void) snprintf(buf, len, "%s (%s) (size %lu)",
- kind, ckind, (ulong_t)t->dtdt_size);
- }
- return (buf);
- }
- static void
- dt_dis_rtab(const char *rtag, const dtrace_difo_t *dp, FILE *fp,
- const dof_relodesc_t *rp, uint32_t len)
- {
- (void) fprintf(fp, "\n%-4s %-8s %-8s %s\n",
- rtag, "OFFSET", "DATA", "NAME");
- for (; len != 0; len--, rp++) {
- (void) fprintf(fp, "%-4u %-8llu %-8llu %s\n",
- rp->dofr_type, (u_longlong_t)rp->dofr_offset,
- (u_longlong_t)rp->dofr_data,
- &dp->dtdo_strtab[rp->dofr_name]);
- }
- }
- void
- dt_dis(const dtrace_difo_t *dp, FILE *fp)
- {
- static const struct opent {
- const char *op_name;
- void (*op_func)(const dtrace_difo_t *, const char *,
- dif_instr_t, FILE *);
- } optab[] = {
- { "(illegal opcode)", dt_dis_str },
- { "or", dt_dis_log }, /* DIF_OP_OR */
- { "xor", dt_dis_log }, /* DIF_OP_XOR */
- { "and", dt_dis_log }, /* DIF_OP_AND */
- { "sll", dt_dis_log }, /* DIF_OP_SLL */
- { "srl", dt_dis_log }, /* DIF_OP_SRL */
- { "sub", dt_dis_log }, /* DIF_OP_SUB */
- { "add", dt_dis_log }, /* DIF_OP_ADD */
- { "mul", dt_dis_log }, /* DIF_OP_MUL */
- { "sdiv", dt_dis_log }, /* DIF_OP_SDIV */
- { "udiv", dt_dis_log }, /* DIF_OP_UDIV */
- { "srem", dt_dis_log }, /* DIF_OP_SREM */
- { "urem", dt_dis_log }, /* DIF_OP_UREM */
- { "not", dt_dis_r1rd }, /* DIF_OP_NOT */
- { "mov", dt_dis_r1rd }, /* DIF_OP_MOV */
- { "cmp", dt_dis_cmp }, /* DIF_OP_CMP */
- { "tst", dt_dis_tst }, /* DIF_OP_TST */
- { "ba", dt_dis_branch }, /* DIF_OP_BA */
- { "be", dt_dis_branch }, /* DIF_OP_BE */
- { "bne", dt_dis_branch }, /* DIF_OP_BNE */
- { "bg", dt_dis_branch }, /* DIF_OP_BG */
- { "bgu", dt_dis_branch }, /* DIF_OP_BGU */
- { "bge", dt_dis_branch }, /* DIF_OP_BGE */
- { "bgeu", dt_dis_branch }, /* DIF_OP_BGEU */
- { "bl", dt_dis_branch }, /* DIF_OP_BL */
- { "blu", dt_dis_branch }, /* DIF_OP_BLU */
- { "ble", dt_dis_branch }, /* DIF_OP_BLE */
- { "bleu", dt_dis_branch }, /* DIF_OP_BLEU */
- { "ldsb", dt_dis_load }, /* DIF_OP_LDSB */
- { "ldsh", dt_dis_load }, /* DIF_OP_LDSH */
- { "ldsw", dt_dis_load }, /* DIF_OP_LDSW */
- { "ldub", dt_dis_load }, /* DIF_OP_LDUB */
- { "lduh", dt_dis_load }, /* DIF_OP_LDUH */
- { "lduw", dt_dis_load }, /* DIF_OP_LDUW */
- { "ldx", dt_dis_load }, /* DIF_OP_LDX */
- { "ret", dt_dis_ret }, /* DIF_OP_RET */
- { "nop", dt_dis_str }, /* DIF_OP_NOP */
- { "setx", dt_dis_setx }, /* DIF_OP_SETX */
- { "sets", dt_dis_sets }, /* DIF_OP_SETS */
- { "scmp", dt_dis_cmp }, /* DIF_OP_SCMP */
- { "ldga", dt_dis_lda }, /* DIF_OP_LDGA */
- { "ldgs", dt_dis_ldv }, /* DIF_OP_LDGS */
- { "stgs", dt_dis_stv }, /* DIF_OP_STGS */
- { "ldta", dt_dis_lda }, /* DIF_OP_LDTA */
- { "ldts", dt_dis_ldv }, /* DIF_OP_LDTS */
- { "stts", dt_dis_stv }, /* DIF_OP_STTS */
- { "sra", dt_dis_log }, /* DIF_OP_SRA */
- { "call", dt_dis_call }, /* DIF_OP_CALL */
- { "pushtr", dt_dis_pushts }, /* DIF_OP_PUSHTR */
- { "pushtv", dt_dis_pushts }, /* DIF_OP_PUSHTV */
- { "popts", dt_dis_str }, /* DIF_OP_POPTS */
- { "flushts", dt_dis_str }, /* DIF_OP_FLUSHTS */
- { "ldgaa", dt_dis_ldv }, /* DIF_OP_LDGAA */
- { "ldtaa", dt_dis_ldv }, /* DIF_OP_LDTAA */
- { "stgaa", dt_dis_stv }, /* DIF_OP_STGAA */
- { "sttaa", dt_dis_stv }, /* DIF_OP_STTAA */
- { "ldls", dt_dis_ldv }, /* DIF_OP_LDLS */
- { "stls", dt_dis_stv }, /* DIF_OP_STLS */
- { "allocs", dt_dis_r1rd }, /* DIF_OP_ALLOCS */
- { "copys", dt_dis_log }, /* DIF_OP_COPYS */
- { "stb", dt_dis_store }, /* DIF_OP_STB */
- { "sth", dt_dis_store }, /* DIF_OP_STH */
- { "stw", dt_dis_store }, /* DIF_OP_STW */
- { "stx", dt_dis_store }, /* DIF_OP_STX */
- { "uldsb", dt_dis_load }, /* DIF_OP_ULDSB */
- { "uldsh", dt_dis_load }, /* DIF_OP_ULDSH */
- { "uldsw", dt_dis_load }, /* DIF_OP_ULDSW */
- { "uldub", dt_dis_load }, /* DIF_OP_ULDUB */
- { "ulduh", dt_dis_load }, /* DIF_OP_ULDUH */
- { "ulduw", dt_dis_load }, /* DIF_OP_ULDUW */
- { "uldx", dt_dis_load }, /* DIF_OP_ULDX */
- { "rldsb", dt_dis_load }, /* DIF_OP_RLDSB */
- { "rldsh", dt_dis_load }, /* DIF_OP_RLDSH */
- { "rldsw", dt_dis_load }, /* DIF_OP_RLDSW */
- { "rldub", dt_dis_load }, /* DIF_OP_RLDUB */
- { "rlduh", dt_dis_load }, /* DIF_OP_RLDUH */
- { "rlduw", dt_dis_load }, /* DIF_OP_RLDUW */
- { "rldx", dt_dis_load }, /* DIF_OP_RLDX */
- { "xlate", dt_dis_xlate }, /* DIF_OP_XLATE */
- { "xlarg", dt_dis_xlate }, /* DIF_OP_XLARG */
- };
- const struct opent *op;
- ulong_t i = 0;
- char type[DT_TYPE_NAMELEN];
- (void) fprintf(fp, "\nDIFO 0x%p returns %s\n", (void *)dp,
- dt_dis_typestr(&dp->dtdo_rtype, type, sizeof (type)));
- (void) fprintf(fp, "%-3s %-8s %s\n",
- "OFF", "OPCODE", "INSTRUCTION");
- for (i = 0; i < dp->dtdo_len; i++) {
- dif_instr_t instr = dp->dtdo_buf[i];
- dif_instr_t opcode = DIF_INSTR_OP(instr);
- if (opcode >= sizeof (optab) / sizeof (optab[0]))
- opcode = 0; /* force invalid opcode message */
- op = &optab[opcode];
- (void) fprintf(fp, "%02lu: %08x ", i, instr);
- op->op_func(dp, op->op_name, instr, fp);
- (void) fprintf(fp, "\n");
- }
- if (dp->dtdo_varlen != 0) {
- (void) fprintf(fp, "\n%-16s %-4s %-3s %-3s %-4s %s\n",
- "NAME", "ID", "KND", "SCP", "FLAG", "TYPE");
- }
- for (i = 0; i < dp->dtdo_varlen; i++) {
- dtrace_difv_t *v = &dp->dtdo_vartab[i];
- char kind[4], scope[4], flags[16] = { 0 };
- switch (v->dtdv_kind) {
- case DIFV_KIND_ARRAY:
- (void) strcpy(kind, "arr");
- break;
- case DIFV_KIND_SCALAR:
- (void) strcpy(kind, "scl");
- break;
- default:
- (void) snprintf(kind, sizeof (kind),
- "%u", v->dtdv_kind);
- }
- switch (v->dtdv_scope) {
- case DIFV_SCOPE_GLOBAL:
- (void) strcpy(scope, "glb");
- break;
- case DIFV_SCOPE_THREAD:
- (void) strcpy(scope, "tls");
- break;
- case DIFV_SCOPE_LOCAL:
- (void) strcpy(scope, "loc");
- break;
- default:
- (void) snprintf(scope, sizeof (scope),
- "%u", v->dtdv_scope);
- }
- if (v->dtdv_flags & ~(DIFV_F_REF | DIFV_F_MOD)) {
- (void) snprintf(flags, sizeof (flags), "/0x%x",
- v->dtdv_flags & ~(DIFV_F_REF | DIFV_F_MOD));
- }
- if (v->dtdv_flags & DIFV_F_REF)
- (void) strcat(flags, "/r");
- if (v->dtdv_flags & DIFV_F_MOD)
- (void) strcat(flags, "/w");
- (void) fprintf(fp, "%-16s %-4x %-3s %-3s %-4s %s\n",
- &dp->dtdo_strtab[v->dtdv_name],
- v->dtdv_id, kind, scope, flags + 1,
- dt_dis_typestr(&v->dtdv_type, type, sizeof (type)));
- }
- if (dp->dtdo_xlmlen != 0) {
- (void) fprintf(fp, "\n%-4s %-3s %-12s %s\n",
- "XLID", "ARG", "MEMBER", "TYPE");
- }
- for (i = 0; i < dp->dtdo_xlmlen; i++) {
- dt_node_t *dnp = dp->dtdo_xlmtab[i];
- dt_xlator_t *dxp = dnp->dn_membexpr->dn_xlator;
- (void) fprintf(fp, "%-4u %-3d %-12s %s\n",
- (uint_t)dxp->dx_id, dxp->dx_arg, dnp->dn_membname,
- dt_node_type_name(dnp, type, sizeof (type)));
- }
- if (dp->dtdo_krelen != 0)
- dt_dis_rtab("KREL", dp, fp, dp->dtdo_kreltab, dp->dtdo_krelen);
- if (dp->dtdo_urelen != 0)
- dt_dis_rtab("UREL", dp, fp, dp->dtdo_ureltab, dp->dtdo_urelen);
- }