target/i386/cpu-dump.c

   1 /*
   2  *  i386 CPU dump to FILE
   3  *
   4  *  Copyright (c) 2003 Fabrice Bellard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "qemu/osdep.h"
  21 #include "cpu.h"
  22 #include "qemu/qemu-print.h"
  23 #ifndef CONFIG_USER_ONLY
  24 #include "hw/i386/apic_internal.h"
  25 #endif
  26
  27 /***********************************************************/
  28 /* x86 debug */
  29
  30 static const char *cc_op_str[CC_OP_NB] = {
  31     "DYNAMIC",
  32     "EFLAGS",
  33
  34     "MULB",
  35     "MULW",
  36     "MULL",
  37     "MULQ",
  38
  39     "ADDB",
  40     "ADDW",
  41     "ADDL",
  42     "ADDQ",
  43
  44     "ADCB",
  45     "ADCW",
  46     "ADCL",
  47     "ADCQ",
  48
  49     "SUBB",
  50     "SUBW",
  51     "SUBL",
  52     "SUBQ",
  53
  54     "SBBB",
  55     "SBBW",
  56     "SBBL",
  57     "SBBQ",
  58
  59     "LOGICB",
  60     "LOGICW",
  61     "LOGICL",
  62     "LOGICQ",
  63
  64     "INCB",
  65     "INCW",
  66     "INCL",
  67     "INCQ",
  68
  69     "DECB",
  70     "DECW",
  71     "DECL",
  72     "DECQ",
  73
  74     "SHLB",
  75     "SHLW",
  76     "SHLL",
  77     "SHLQ",
  78
  79     "SARB",
  80     "SARW",
  81     "SARL",
  82     "SARQ",
  83
  84     "BMILGB",
  85     "BMILGW",
  86     "BMILGL",
  87     "BMILGQ",
  88
  89     "ADCX",
  90     "ADOX",
  91     "ADCOX",
  92
  93     "CLR",
  94 };
  95
  96 static void
  97 cpu_x86_dump_seg_cache(CPUX86State *env, FILE *f,
  98                        const char *name, struct SegmentCache *sc)
  99 {
 100 #ifdef TARGET_X86_64
 101     if (env->hflags & HF_CS64_MASK) {
 102         qemu_fprintf(f, "%-3s=%04x %016" PRIx64 " %08x %08x", name,
 103                      sc->selector, sc->base, sc->limit,
 104                      sc->flags & 0x00ffff00);
 105     } else
 106 #endif
 107     {
 108         qemu_fprintf(f, "%-3s=%04x %08x %08x %08x", name, sc->selector,
 109                      (uint32_t)sc->base, sc->limit,
 110                      sc->flags & 0x00ffff00);
 111     }
 112
 113     if (!(env->hflags & HF_PE_MASK) || !(sc->flags & DESC_P_MASK))
 114         goto done;
 115
 116     qemu_fprintf(f, " DPL=%d ",
 117                  (sc->flags & DESC_DPL_MASK) >> DESC_DPL_SHIFT);
 118     if (sc->flags & DESC_S_MASK) {
 119         if (sc->flags & DESC_CS_MASK) {
 120             qemu_fprintf(f, (sc->flags & DESC_L_MASK) ? "CS64" :
 121                          ((sc->flags & DESC_B_MASK) ? "CS32" : "CS16"));
 122             qemu_fprintf(f, " [%c%c", (sc->flags & DESC_C_MASK) ? 'C' : '-',
 123                          (sc->flags & DESC_R_MASK) ? 'R' : '-');
 124         } else {
 125             qemu_fprintf(f, (sc->flags & DESC_B_MASK
 126                              || env->hflags & HF_LMA_MASK)
 127                          ? "DS  " : "DS16");
 128             qemu_fprintf(f, " [%c%c", (sc->flags & DESC_E_MASK) ? 'E' : '-',
 129                          (sc->flags & DESC_W_MASK) ? 'W' : '-');
 130         }
 131         qemu_fprintf(f, "%c]", (sc->flags & DESC_A_MASK) ? 'A' : '-');
 132     } else {
 133         static const char *sys_type_name[2][16] = {
 134             { /* 32 bit mode */
 135                 "Reserved", "TSS16-avl", "LDT", "TSS16-busy",
 136                 "CallGate16", "TaskGate", "IntGate16", "TrapGate16",
 137                 "Reserved", "TSS32-avl", "Reserved", "TSS32-busy",
 138                 "CallGate32", "Reserved", "IntGate32", "TrapGate32"
 139             },
 140             { /* 64 bit mode */
 141                 "<hiword>", "Reserved", "LDT", "Reserved", "Reserved",
 142                 "Reserved", "Reserved", "Reserved", "Reserved",
 143                 "TSS64-avl", "Reserved", "TSS64-busy", "CallGate64",
 144                 "Reserved", "IntGate64", "TrapGate64"
 145             }
 146         };
 147         qemu_fprintf(f, "%s",
 148                      sys_type_name[(env->hflags & HF_LMA_MASK) ? 1 : 0]
 149                      [(sc->flags & DESC_TYPE_MASK) >> DESC_TYPE_SHIFT]);
 150     }
 151 done:
 152     qemu_fprintf(f, "\n");
 153 }
 154
 155 #ifndef CONFIG_USER_ONLY
 156
 157 /* ARRAY_SIZE check is not required because
 158  * DeliveryMode(dm) has a size of 3 bit.
 159  */
 160 static inline const char *dm2str(uint32_t dm)
 161 {
 162     static const char *str[] = {
 163         "Fixed",
 164         "...",
 165         "SMI",
 166         "...",
 167         "NMI",
 168         "INIT",
 169         "...",
 170         "ExtINT"
 171     };
 172     return str[dm];
 173 }
 174
 175 static void dump_apic_lvt(const char *name, uint32_t lvt, bool is_timer)
 176 {
 177     uint32_t dm = (lvt & APIC_LVT_DELIV_MOD) >> APIC_LVT_DELIV_MOD_SHIFT;
 178     qemu_printf("%s\t 0x%08x %s %-5s %-6s %-7s %-12s %-6s",
 179                 name, lvt,
 180                 lvt & APIC_LVT_INT_POLARITY ? "active-lo" : "active-hi",
 181                 lvt & APIC_LVT_LEVEL_TRIGGER ? "level" : "edge",
 182                 lvt & APIC_LVT_MASKED ? "masked" : "",
 183                 lvt & APIC_LVT_DELIV_STS ? "pending" : "",
 184                 !is_timer ?
 185                     "" : lvt & APIC_LVT_TIMER_PERIODIC ?
 186                             "periodic" : lvt & APIC_LVT_TIMER_TSCDEADLINE ?
 187                                             "tsc-deadline" : "one-shot",
 188                 dm2str(dm));
 189     if (dm != APIC_DM_NMI) {
 190         qemu_printf(" (vec %u)\n", lvt & APIC_VECTOR_MASK);
 191     } else {
 192         qemu_printf("\n");
 193     }
 194 }
 195
 196 /* ARRAY_SIZE check is not required because
 197  * destination shorthand has a size of 2 bit.
 198  */
 199 static inline const char *shorthand2str(uint32_t shorthand)
 200 {
 201     const char *str[] = {
 202         "no-shorthand", "self", "all-self", "all"
 203     };
 204     return str[shorthand];
 205 }
 206
 207 static inline uint8_t divider_conf(uint32_t divide_conf)
 208 {
 209     uint8_t divide_val = ((divide_conf & 0x8) >> 1) | (divide_conf & 0x3);
 210
 211     return divide_val == 7 ? 1 : 2 << divide_val;
 212 }
 213
 214 static inline void mask2str(char *str, uint32_t val, uint8_t size)
 215 {
 216     while (size--) {
 217         *str++ = (val >> size) & 1 ? '1' : '0';
 218     }
 219     *str = 0;
 220 }
 221
 222 #define MAX_LOGICAL_APIC_ID_MASK_SIZE 16
 223
 224 static void dump_apic_icr(APICCommonState *s, CPUX86State *env)
 225 {
 226     uint32_t icr = s->icr[0], icr2 = s->icr[1];
 227     uint8_t dest_shorthand = \
 228         (icr & APIC_ICR_DEST_SHORT) >> APIC_ICR_DEST_SHORT_SHIFT;
 229     bool logical_mod = icr & APIC_ICR_DEST_MOD;
 230     char apic_id_str[MAX_LOGICAL_APIC_ID_MASK_SIZE + 1];
 231     uint32_t dest_field;
 232     bool x2apic;
 233
 234     qemu_printf("ICR\t 0x%08x %s %s %s %s\n",
 235                 icr,
 236                 logical_mod ? "logical" : "physical",
 237                 icr & APIC_ICR_TRIGGER_MOD ? "level" : "edge",
 238                 icr & APIC_ICR_LEVEL ? "assert" : "de-assert",
 239                 shorthand2str(dest_shorthand));
 240
 241     qemu_printf("ICR2\t 0x%08x", icr2);
 242     if (dest_shorthand != 0) {
 243         qemu_printf("\n");
 244         return;
 245     }
 246     x2apic = env->features[FEAT_1_ECX] & CPUID_EXT_X2APIC;
 247     dest_field = x2apic ? icr2 : icr2 >> APIC_ICR_DEST_SHIFT;
 248
 249     if (!logical_mod) {
 250         if (x2apic) {
 251             qemu_printf(" cpu %u (X2APIC ID)\n", dest_field);
 252         } else {
 253             qemu_printf(" cpu %u (APIC ID)\n",
 254                         dest_field & APIC_LOGDEST_XAPIC_ID);
 255         }
 256         return;
 257     }
 258
 259     if (s->dest_mode == 0xf) { /* flat mode */
 260         mask2str(apic_id_str, icr2 >> APIC_ICR_DEST_SHIFT, 8);
 261         qemu_printf(" mask %s (APIC ID)\n", apic_id_str);
 262     } else if (s->dest_mode == 0) { /* cluster mode */
 263         if (x2apic) {
 264             mask2str(apic_id_str, dest_field & APIC_LOGDEST_X2APIC_ID, 16);
 265             qemu_printf(" cluster %u mask %s (X2APIC ID)\n",
 266                         dest_field >> APIC_LOGDEST_X2APIC_SHIFT, apic_id_str);
 267         } else {
 268             mask2str(apic_id_str, dest_field & APIC_LOGDEST_XAPIC_ID, 4);
 269             qemu_printf(" cluster %u mask %s (APIC ID)\n",
 270                         dest_field >> APIC_LOGDEST_XAPIC_SHIFT, apic_id_str);
 271         }
 272     }
 273 }
 274
 275 static void dump_apic_interrupt(const char *name, uint32_t *ireg_tab,
 276                                 uint32_t *tmr_tab)
 277 {
 278     int i, empty = true;
 279
 280     qemu_printf("%s\t ", name);
 281     for (i = 0; i < 256; i++) {
 282         if (apic_get_bit(ireg_tab, i)) {
 283             qemu_printf("%u%s ", i,
 284                         apic_get_bit(tmr_tab, i) ? "(level)" : "");
 285             empty = false;
 286         }
 287     }
 288     qemu_printf("%s\n", empty ? "(none)" : "");
 289 }
 290
 291 void x86_cpu_dump_local_apic_state(CPUState *cs, int flags)
 292 {
 293     X86CPU *cpu = X86_CPU(cs);
 294     APICCommonState *s = APIC_COMMON(cpu->apic_state);
 295     if (!s) {
 296         qemu_printf("local apic state not available\n");
 297         return;
 298     }
 299     uint32_t *lvt = s->lvt;
 300
 301     qemu_printf("dumping local APIC state for CPU %-2u\n\n",
 302                 CPU(cpu)->cpu_index);
 303     dump_apic_lvt("LVT0", lvt[APIC_LVT_LINT0], false);
 304     dump_apic_lvt("LVT1", lvt[APIC_LVT_LINT1], false);
 305     dump_apic_lvt("LVTPC", lvt[APIC_LVT_PERFORM], false);
 306     dump_apic_lvt("LVTERR", lvt[APIC_LVT_ERROR], false);
 307     dump_apic_lvt("LVTTHMR", lvt[APIC_LVT_THERMAL], false);
 308     dump_apic_lvt("LVTT", lvt[APIC_LVT_TIMER], true);
 309
 310     qemu_printf("Timer\t DCR=0x%x (divide by %u) initial_count = %u"
 311                 " current_count = %u\n",
 312                 s->divide_conf & APIC_DCR_MASK,
 313                 divider_conf(s->divide_conf),
 314                 s->initial_count, apic_get_current_count(s));
 315
 316     qemu_printf("SPIV\t 0x%08x APIC %s, focus=%s, spurious vec %u\n",
 317                 s->spurious_vec,
 318                 s->spurious_vec & APIC_SPURIO_ENABLED ? "enabled" : "disabled",
 319                 s->spurious_vec & APIC_SPURIO_FOCUS ? "on" : "off",
 320                 s->spurious_vec & APIC_VECTOR_MASK);
 321
 322     dump_apic_icr(s, &cpu->env);
 323
 324     qemu_printf("ESR\t 0x%08x\n", s->esr);
 325
 326     dump_apic_interrupt("ISR", s->isr, s->tmr);
 327     dump_apic_interrupt("IRR", s->irr, s->tmr);
 328
 329     qemu_printf("\nAPR 0x%02x TPR 0x%02x DFR 0x%02x LDR 0x%02x",
 330                 s->arb_id, s->tpr, s->dest_mode, s->log_dest);
 331     if (s->dest_mode == 0) {
 332         qemu_printf("(cluster %u: id %u)",
 333                     s->log_dest >> APIC_LOGDEST_XAPIC_SHIFT,
 334                     s->log_dest & APIC_LOGDEST_XAPIC_ID);
 335     }
 336     qemu_printf(" PPR 0x%02x\n", apic_get_ppr(s));
 337 }
 338 #else
 339 void x86_cpu_dump_local_apic_state(CPUState *cs, int flags)
 340 {
 341 }
 342 #endif /* !CONFIG_USER_ONLY */
 343
 344 #define DUMP_CODE_BYTES_TOTAL    50
 345 #define DUMP_CODE_BYTES_BACKWARD 20
 346
 347 void x86_cpu_dump_state(CPUState *cs, FILE *f, int flags)
 348 {
 349     X86CPU *cpu = X86_CPU(cs);
 350     CPUX86State *env = &cpu->env;
 351     int eflags, i, nb;
 352     char cc_op_name[32];
 353     static const char *seg_name[6] = { "ES", "CS", "SS", "DS", "FS", "GS" };
 354
 355     eflags = cpu_compute_eflags(env);
 356 #ifdef TARGET_X86_64
 357     if (env->hflags & HF_CS64_MASK) {
 358         qemu_fprintf(f, "RAX=%016" PRIx64 " RBX=%016" PRIx64 " RCX=%016" PRIx64 " RDX=%016" PRIx64 "\n"
 359                      "RSI=%016" PRIx64 " RDI=%016" PRIx64 " RBP=%016" PRIx64 " RSP=%016" PRIx64 "\n"
 360                      "R8 =%016" PRIx64 " R9 =%016" PRIx64 " R10=%016" PRIx64 " R11=%016" PRIx64 "\n"
 361                      "R12=%016" PRIx64 " R13=%016" PRIx64 " R14=%016" PRIx64 " R15=%016" PRIx64 "\n"
 362                      "RIP=%016" PRIx64 " RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
 363                      env->regs[R_EAX],
 364                      env->regs[R_EBX],
 365                      env->regs[R_ECX],
 366                      env->regs[R_EDX],
 367                      env->regs[R_ESI],
 368                      env->regs[R_EDI],
 369                      env->regs[R_EBP],
 370                      env->regs[R_ESP],
 371                      env->regs[8],
 372                      env->regs[9],
 373                      env->regs[10],
 374                      env->regs[11],
 375                      env->regs[12],
 376                      env->regs[13],
 377                      env->regs[14],
 378                      env->regs[15],
 379                      env->eip, eflags,
 380                      eflags & DF_MASK ? 'D' : '-',
 381                      eflags & CC_O ? 'O' : '-',
 382                      eflags & CC_S ? 'S' : '-',
 383                      eflags & CC_Z ? 'Z' : '-',
 384                      eflags & CC_A ? 'A' : '-',
 385                      eflags & CC_P ? 'P' : '-',
 386                      eflags & CC_C ? 'C' : '-',
 387                      env->hflags & HF_CPL_MASK,
 388                      (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
 389                      (env->a20_mask >> 20) & 1,
 390                      (env->hflags >> HF_SMM_SHIFT) & 1,
 391                      cs->halted);
 392     } else
 393 #endif
 394     {
 395         qemu_fprintf(f, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
 396                      "ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
 397                      "EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
 398                      (uint32_t)env->regs[R_EAX],
 399                      (uint32_t)env->regs[R_EBX],
 400                      (uint32_t)env->regs[R_ECX],
 401                      (uint32_t)env->regs[R_EDX],
 402                      (uint32_t)env->regs[R_ESI],
 403                      (uint32_t)env->regs[R_EDI],
 404                      (uint32_t)env->regs[R_EBP],
 405                      (uint32_t)env->regs[R_ESP],
 406                      (uint32_t)env->eip, eflags,
 407                      eflags & DF_MASK ? 'D' : '-',
 408                      eflags & CC_O ? 'O' : '-',
 409                      eflags & CC_S ? 'S' : '-',
 410                      eflags & CC_Z ? 'Z' : '-',
 411                      eflags & CC_A ? 'A' : '-',
 412                      eflags & CC_P ? 'P' : '-',
 413                      eflags & CC_C ? 'C' : '-',
 414                      env->hflags & HF_CPL_MASK,
 415                      (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
 416                      (env->a20_mask >> 20) & 1,
 417                      (env->hflags >> HF_SMM_SHIFT) & 1,
 418                      cs->halted);
 419     }
 420
 421     for(i = 0; i < 6; i++) {
 422         cpu_x86_dump_seg_cache(env, f, seg_name[i], &env->segs[i]);
 423     }
 424     cpu_x86_dump_seg_cache(env, f, "LDT", &env->ldt);
 425     cpu_x86_dump_seg_cache(env, f, "TR", &env->tr);
 426
 427 #ifdef TARGET_X86_64
 428     if (env->hflags & HF_LMA_MASK) {
 429         qemu_fprintf(f, "GDT=     %016" PRIx64 " %08x\n",
 430                      env->gdt.base, env->gdt.limit);
 431         qemu_fprintf(f, "IDT=     %016" PRIx64 " %08x\n",
 432                      env->idt.base, env->idt.limit);
 433         qemu_fprintf(f, "CR0=%08x CR2=%016" PRIx64 " CR3=%016" PRIx64 " CR4=%08x\n",
 434                      (uint32_t)env->cr[0],
 435                      env->cr[2],
 436                      env->cr[3],
 437                      (uint32_t)env->cr[4]);
 438         for(i = 0; i < 4; i++)
 439             qemu_fprintf(f, "DR%d=%016" PRIx64 " ", i, env->dr[i]);
 440         qemu_fprintf(f, "\nDR6=%016" PRIx64 " DR7=%016" PRIx64 "\n",
 441                      env->dr[6], env->dr[7]);
 442     } else
 443 #endif
 444     {
 445         qemu_fprintf(f, "GDT=     %08x %08x\n",
 446                      (uint32_t)env->gdt.base, env->gdt.limit);
 447         qemu_fprintf(f, "IDT=     %08x %08x\n",
 448                      (uint32_t)env->idt.base, env->idt.limit);
 449         qemu_fprintf(f, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
 450                      (uint32_t)env->cr[0],
 451                      (uint32_t)env->cr[2],
 452                      (uint32_t)env->cr[3],
 453                      (uint32_t)env->cr[4]);
 454         for(i = 0; i < 4; i++) {
 455             qemu_fprintf(f, "DR%d=" TARGET_FMT_lx " ", i, env->dr[i]);
 456         }
 457         qemu_fprintf(f, "\nDR6=" TARGET_FMT_lx " DR7=" TARGET_FMT_lx "\n",
 458                      env->dr[6], env->dr[7]);
 459     }
 460     if (flags & CPU_DUMP_CCOP) {
 461         if ((unsigned)env->cc_op < CC_OP_NB)
 462             snprintf(cc_op_name, sizeof(cc_op_name), "%s", cc_op_str[env->cc_op]);
 463         else
 464             snprintf(cc_op_name, sizeof(cc_op_name), "[%d]", env->cc_op);
 465 #ifdef TARGET_X86_64
 466         if (env->hflags & HF_CS64_MASK) {
 467             qemu_fprintf(f, "CCS=%016" PRIx64 " CCD=%016" PRIx64 " CCO=%-8s\n",
 468                          env->cc_src, env->cc_dst,
 469                          cc_op_name);
 470         } else
 471 #endif
 472         {
 473             qemu_fprintf(f, "CCS=%08x CCD=%08x CCO=%-8s\n",
 474                          (uint32_t)env->cc_src, (uint32_t)env->cc_dst,
 475                          cc_op_name);
 476         }
 477     }
 478     qemu_fprintf(f, "EFER=%016" PRIx64 "\n", env->efer);
 479     if (flags & CPU_DUMP_FPU) {
 480         int fptag;
 481         fptag = 0;
 482         for(i = 0; i < 8; i++) {
 483             fptag |= ((!env->fptags[i]) << i);
 484         }
 485         update_mxcsr_from_sse_status(env);
 486         qemu_fprintf(f, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
 487                      env->fpuc,
 488                      (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11,
 489                      env->fpstt,
 490                      fptag,
 491                      env->mxcsr);
 492         for(i=0;i<8;i++) {
 493             CPU_LDoubleU u;
 494             u.d = env->fpregs[i].d;
 495             qemu_fprintf(f, "FPR%d=%016" PRIx64 " %04x",
 496                          i, u.l.lower, u.l.upper);
 497             if ((i & 1) == 1)
 498                 qemu_fprintf(f, "\n");
 499             else
 500                 qemu_fprintf(f, " ");
 501         }
 502         if (env->hflags & HF_CS64_MASK)
 503             nb = 16;
 504         else
 505             nb = 8;
 506         for(i=0;i<nb;i++) {
 507             qemu_fprintf(f, "XMM%02d=%08x%08x%08x%08x",
 508                          i,
 509                          env->xmm_regs[i].ZMM_L(3),
 510                          env->xmm_regs[i].ZMM_L(2),
 511                          env->xmm_regs[i].ZMM_L(1),
 512                          env->xmm_regs[i].ZMM_L(0));
 513             if ((i & 1) == 1)
 514                 qemu_fprintf(f, "\n");
 515             else
 516                 qemu_fprintf(f, " ");
 517         }
 518     }
 519     if (flags & CPU_DUMP_CODE) {
 520         target_ulong base = env->segs[R_CS].base + env->eip;
 521         target_ulong offs = MIN(env->eip, DUMP_CODE_BYTES_BACKWARD);
 522         uint8_t code;
 523         char codestr[3];
 524
 525         qemu_fprintf(f, "Code=");
 526         for (i = 0; i < DUMP_CODE_BYTES_TOTAL; i++) {
 527             if (cpu_memory_rw_debug(cs, base - offs + i, &code, 1, 0) == 0) {
 528                 snprintf(codestr, sizeof(codestr), "%02x", code);
 529             } else {
 530                 snprintf(codestr, sizeof(codestr), "??");
 531             }
 532             qemu_fprintf(f, "%s%s%s%s", i > 0 ? " " : "",
 533                          i == offs ? "<" : "", codestr, i == offs ? ">" : "");
 534         }
 535         qemu_fprintf(f, "\n");
 536     }
 537 }