1178481Sjb/* 2178481Sjb * CDDL HEADER START 3178481Sjb * 4178481Sjb * The contents of this file are subject to the terms of the 5178481Sjb * Common Development and Distribution License (the "License"). 6178481Sjb * You may not use this file except in compliance with the License. 7178481Sjb * 8178481Sjb * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9178481Sjb * or http://www.opensolaris.org/os/licensing. 10178481Sjb * See the License for the specific language governing permissions 11178481Sjb * and limitations under the License. 12178481Sjb * 13178481Sjb * When distributing Covered Code, include this CDDL HEADER in each 14178481Sjb * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15178481Sjb * If applicable, add the following below this CDDL HEADER, with the 16178481Sjb * fields enclosed by brackets "[]" replaced with your own identifying 17178481Sjb * information: Portions Copyright [yyyy] [name of copyright owner] 18178481Sjb * 19178481Sjb * CDDL HEADER END 20178481Sjb */ 21178481Sjb/* 22210767Srpaulo * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23178481Sjb * Use is subject to license terms. 24178481Sjb */ 25178481Sjb 26178481Sjb/* 27178481Sjb * Create and parse buffers containing CTF data. 28178481Sjb */ 29178481Sjb 30178481Sjb#include <sys/types.h> 31178481Sjb#include <stdio.h> 32178481Sjb#include <stdlib.h> 33178481Sjb#include <strings.h> 34178481Sjb#include <ctype.h> 35178481Sjb#include <zlib.h> 36178481Sjb#include <elf.h> 37178481Sjb 38178481Sjb#include "ctf_headers.h" 39178481Sjb#include "ctftools.h" 40178481Sjb#include "strtab.h" 41178481Sjb#include "memory.h" 42178481Sjb 43178481Sjb/* 44178481Sjb * Name of the file currently being read, used to print error messages. We 45178481Sjb * assume that only one file will be read at a time, and thus make no attempt 46178481Sjb * to allow curfile to be used simultaneously by multiple threads. 47178481Sjb * 48178481Sjb * The value is only valid during a call to ctf_load. 49178481Sjb */ 50178481Sjbchar *curfile; 51178481Sjb 52178481Sjb#define CTF_BUF_CHUNK_SIZE (64 * 1024) 53178481Sjb#define RES_BUF_CHUNK_SIZE (64 * 1024) 54178481Sjb 55178481Sjbstruct ctf_buf { 56178481Sjb strtab_t ctb_strtab; /* string table */ 57178481Sjb caddr_t ctb_base; /* pointer to base of buffer */ 58178481Sjb caddr_t ctb_end; /* pointer to end of buffer */ 59178481Sjb caddr_t ctb_ptr; /* pointer to empty buffer space */ 60178481Sjb size_t ctb_size; /* size of buffer */ 61178481Sjb int nptent; /* number of processed types */ 62178481Sjb int ntholes; /* number of type holes */ 63178481Sjb}; 64178481Sjb 65178481Sjb/*PRINTFLIKE1*/ 66178481Sjbstatic void 67178546Sjbparseterminate(const char *fmt, ...) 68178481Sjb{ 69178481Sjb static char msgbuf[1024]; /* sigh */ 70178481Sjb va_list ap; 71178481Sjb 72178481Sjb va_start(ap, fmt); 73178481Sjb vsnprintf(msgbuf, sizeof (msgbuf), fmt, ap); 74178481Sjb va_end(ap); 75178481Sjb 76178481Sjb terminate("%s: %s\n", curfile, msgbuf); 77178481Sjb} 78178481Sjb 79178546Sjbstatic void 80178481Sjbctf_buf_grow(ctf_buf_t *b) 81178481Sjb{ 82178481Sjb off_t ptroff = b->ctb_ptr - b->ctb_base; 83178481Sjb 84178481Sjb b->ctb_size += CTF_BUF_CHUNK_SIZE; 85178481Sjb b->ctb_base = xrealloc(b->ctb_base, b->ctb_size); 86178481Sjb b->ctb_end = b->ctb_base + b->ctb_size; 87178481Sjb b->ctb_ptr = b->ctb_base + ptroff; 88178481Sjb} 89178481Sjb 90178546Sjbstatic ctf_buf_t * 91178481Sjbctf_buf_new(void) 92178481Sjb{ 93178481Sjb ctf_buf_t *b = xcalloc(sizeof (ctf_buf_t)); 94178481Sjb 95178481Sjb strtab_create(&b->ctb_strtab); 96178481Sjb ctf_buf_grow(b); 97178481Sjb 98178481Sjb return (b); 99178481Sjb} 100178481Sjb 101178546Sjbstatic void 102178481Sjbctf_buf_free(ctf_buf_t *b) 103178481Sjb{ 104178481Sjb strtab_destroy(&b->ctb_strtab); 105178481Sjb free(b->ctb_base); 106178481Sjb free(b); 107178481Sjb} 108178481Sjb 109178546Sjbstatic uint_t 110178481Sjbctf_buf_cur(ctf_buf_t *b) 111178481Sjb{ 112178481Sjb return (b->ctb_ptr - b->ctb_base); 113178481Sjb} 114178481Sjb 115178546Sjbstatic void 116178546Sjbctf_buf_write(ctf_buf_t *b, void const *p, size_t n) 117178481Sjb{ 118178481Sjb size_t len; 119178481Sjb 120178481Sjb while (n != 0) { 121178481Sjb if (b->ctb_ptr == b->ctb_end) 122178481Sjb ctf_buf_grow(b); 123178481Sjb 124178481Sjb len = MIN((size_t)(b->ctb_end - b->ctb_ptr), n); 125178481Sjb bcopy(p, b->ctb_ptr, len); 126178481Sjb b->ctb_ptr += len; 127178481Sjb 128178546Sjb p = (char const *)p + len; 129178481Sjb n -= len; 130178481Sjb } 131178481Sjb} 132178481Sjb 133178481Sjbstatic int 134178546Sjbwrite_label(void *arg1, void *arg2) 135178481Sjb{ 136178546Sjb labelent_t *le = arg1; 137178546Sjb ctf_buf_t *b = arg2; 138178481Sjb ctf_lblent_t ctl; 139178481Sjb 140178481Sjb ctl.ctl_label = strtab_insert(&b->ctb_strtab, le->le_name); 141178481Sjb ctl.ctl_typeidx = le->le_idx; 142178481Sjb 143178481Sjb ctf_buf_write(b, &ctl, sizeof (ctl)); 144178481Sjb 145178481Sjb return (1); 146178481Sjb} 147178481Sjb 148178481Sjbstatic void 149178481Sjbwrite_objects(iidesc_t *idp, ctf_buf_t *b) 150178481Sjb{ 151178481Sjb ushort_t id = (idp ? idp->ii_dtype->t_id : 0); 152178481Sjb 153178481Sjb ctf_buf_write(b, &id, sizeof (id)); 154178481Sjb 155178481Sjb debug(3, "Wrote object %s (%d)\n", (idp ? idp->ii_name : "(null)"), id); 156178481Sjb} 157178481Sjb 158178481Sjbstatic void 159178481Sjbwrite_functions(iidesc_t *idp, ctf_buf_t *b) 160178481Sjb{ 161178481Sjb ushort_t fdata[2]; 162178481Sjb ushort_t id; 163178481Sjb int nargs; 164178481Sjb int i; 165178481Sjb 166178481Sjb if (!idp) { 167178481Sjb fdata[0] = 0; 168178481Sjb ctf_buf_write(b, &fdata[0], sizeof (fdata[0])); 169178481Sjb 170178481Sjb debug(3, "Wrote function (null)\n"); 171178481Sjb return; 172178481Sjb } 173178481Sjb 174178481Sjb nargs = idp->ii_nargs + (idp->ii_vargs != 0); 175210767Srpaulo 176210767Srpaulo if (nargs > CTF_MAX_VLEN) { 177210767Srpaulo terminate("function %s has too many args: %d > %d\n", 178210767Srpaulo idp->ii_name, nargs, CTF_MAX_VLEN); 179210767Srpaulo } 180210767Srpaulo 181178481Sjb fdata[0] = CTF_TYPE_INFO(CTF_K_FUNCTION, 1, nargs); 182178481Sjb fdata[1] = idp->ii_dtype->t_id; 183178481Sjb ctf_buf_write(b, fdata, sizeof (fdata)); 184178481Sjb 185178481Sjb for (i = 0; i < idp->ii_nargs; i++) { 186178481Sjb id = idp->ii_args[i]->t_id; 187178481Sjb ctf_buf_write(b, &id, sizeof (id)); 188178481Sjb } 189178481Sjb 190178481Sjb if (idp->ii_vargs) { 191178481Sjb id = 0; 192178481Sjb ctf_buf_write(b, &id, sizeof (id)); 193178481Sjb } 194178481Sjb 195178481Sjb debug(3, "Wrote function %s (%d args)\n", idp->ii_name, nargs); 196178481Sjb} 197178481Sjb 198178481Sjb/* 199178481Sjb * Depending on the size of the type being described, either a ctf_stype_t (for 200178481Sjb * types with size < CTF_LSTRUCT_THRESH) or a ctf_type_t (all others) will be 201178481Sjb * written. We isolate the determination here so the rest of the writer code 202178481Sjb * doesn't need to care. 203178481Sjb */ 204178481Sjbstatic void 205178481Sjbwrite_sized_type_rec(ctf_buf_t *b, ctf_type_t *ctt, size_t size) 206178481Sjb{ 207178481Sjb if (size > CTF_MAX_SIZE) { 208178481Sjb ctt->ctt_size = CTF_LSIZE_SENT; 209178481Sjb ctt->ctt_lsizehi = CTF_SIZE_TO_LSIZE_HI(size); 210178481Sjb ctt->ctt_lsizelo = CTF_SIZE_TO_LSIZE_LO(size); 211178481Sjb ctf_buf_write(b, ctt, sizeof (*ctt)); 212178481Sjb } else { 213178481Sjb ctf_stype_t *cts = (ctf_stype_t *)ctt; 214178481Sjb 215178481Sjb cts->ctt_size = (ushort_t)size; 216178481Sjb ctf_buf_write(b, cts, sizeof (*cts)); 217178481Sjb } 218178481Sjb} 219178481Sjb 220178481Sjbstatic void 221178481Sjbwrite_unsized_type_rec(ctf_buf_t *b, ctf_type_t *ctt) 222178481Sjb{ 223178481Sjb ctf_stype_t *cts = (ctf_stype_t *)ctt; 224178481Sjb 225178481Sjb ctf_buf_write(b, cts, sizeof (*cts)); 226178481Sjb} 227178481Sjb 228178481Sjbstatic int 229178546Sjbwrite_type(void *arg1, void *arg2) 230178481Sjb{ 231178546Sjb tdesc_t *tp = arg1; 232178546Sjb ctf_buf_t *b = arg2; 233178481Sjb elist_t *ep; 234178481Sjb mlist_t *mp; 235178481Sjb intr_t *ip; 236178481Sjb 237178481Sjb size_t offset; 238178481Sjb uint_t encoding; 239178481Sjb uint_t data; 240178481Sjb int isroot = tp->t_flags & TDESC_F_ISROOT; 241178481Sjb int i; 242178481Sjb 243178481Sjb ctf_type_t ctt; 244178481Sjb ctf_array_t cta; 245178481Sjb ctf_member_t ctm; 246178481Sjb ctf_lmember_t ctlm; 247178481Sjb ctf_enum_t cte; 248178481Sjb ushort_t id; 249178481Sjb 250178481Sjb ctlm.ctlm_pad = 0; 251178481Sjb 252178481Sjb /* 253178481Sjb * There shouldn't be any holes in the type list (where a hole is 254178481Sjb * defined as two consecutive tdescs without consecutive ids), but 255178481Sjb * check for them just in case. If we do find holes, we need to make 256178481Sjb * fake entries to fill the holes, or we won't be able to reconstruct 257178481Sjb * the tree from the written data. 258178481Sjb */ 259178481Sjb if (++b->nptent < CTF_TYPE_TO_INDEX(tp->t_id)) { 260178481Sjb debug(2, "genctf: type hole from %d < x < %d\n", 261178481Sjb b->nptent - 1, CTF_TYPE_TO_INDEX(tp->t_id)); 262178481Sjb 263178481Sjb ctt.ctt_name = CTF_TYPE_NAME(CTF_STRTAB_0, 0); 264178481Sjb ctt.ctt_info = CTF_TYPE_INFO(0, 0, 0); 265178481Sjb while (b->nptent < CTF_TYPE_TO_INDEX(tp->t_id)) { 266178481Sjb write_sized_type_rec(b, &ctt, 0); 267178481Sjb b->nptent++; 268178481Sjb } 269178481Sjb } 270178481Sjb 271178481Sjb offset = strtab_insert(&b->ctb_strtab, tp->t_name); 272178481Sjb ctt.ctt_name = CTF_TYPE_NAME(CTF_STRTAB_0, offset); 273178481Sjb 274178481Sjb switch (tp->t_type) { 275178481Sjb case INTRINSIC: 276178481Sjb ip = tp->t_intr; 277178481Sjb if (ip->intr_type == INTR_INT) 278178481Sjb ctt.ctt_info = CTF_TYPE_INFO(CTF_K_INTEGER, 279178481Sjb isroot, 1); 280178481Sjb else 281178481Sjb ctt.ctt_info = CTF_TYPE_INFO(CTF_K_FLOAT, isroot, 1); 282178481Sjb write_sized_type_rec(b, &ctt, tp->t_size); 283178481Sjb 284178481Sjb encoding = 0; 285178481Sjb 286178481Sjb if (ip->intr_type == INTR_INT) { 287178481Sjb if (ip->intr_signed) 288178481Sjb encoding |= CTF_INT_SIGNED; 289178481Sjb if (ip->intr_iformat == 'c') 290178481Sjb encoding |= CTF_INT_CHAR; 291178481Sjb else if (ip->intr_iformat == 'b') 292178481Sjb encoding |= CTF_INT_BOOL; 293178481Sjb else if (ip->intr_iformat == 'v') 294178481Sjb encoding |= CTF_INT_VARARGS; 295178481Sjb } else 296178481Sjb encoding = ip->intr_fformat; 297178481Sjb 298178481Sjb data = CTF_INT_DATA(encoding, ip->intr_offset, ip->intr_nbits); 299178481Sjb ctf_buf_write(b, &data, sizeof (data)); 300178481Sjb break; 301178481Sjb 302178481Sjb case POINTER: 303178481Sjb ctt.ctt_info = CTF_TYPE_INFO(CTF_K_POINTER, isroot, 0); 304178481Sjb ctt.ctt_type = tp->t_tdesc->t_id; 305178481Sjb write_unsized_type_rec(b, &ctt); 306178481Sjb break; 307178481Sjb 308178481Sjb case ARRAY: 309178481Sjb ctt.ctt_info = CTF_TYPE_INFO(CTF_K_ARRAY, isroot, 1); 310178481Sjb write_sized_type_rec(b, &ctt, tp->t_size); 311178481Sjb 312178481Sjb cta.cta_contents = tp->t_ardef->ad_contents->t_id; 313178481Sjb cta.cta_index = tp->t_ardef->ad_idxtype->t_id; 314178481Sjb cta.cta_nelems = tp->t_ardef->ad_nelems; 315178481Sjb ctf_buf_write(b, &cta, sizeof (cta)); 316178481Sjb break; 317178481Sjb 318178481Sjb case STRUCT: 319178481Sjb case UNION: 320178481Sjb for (i = 0, mp = tp->t_members; mp != NULL; mp = mp->ml_next) 321178481Sjb i++; /* count up struct or union members */ 322178481Sjb 323210767Srpaulo if (i > CTF_MAX_VLEN) { 324210767Srpaulo terminate("sou %s has too many members: %d > %d\n", 325210767Srpaulo tdesc_name(tp), i, CTF_MAX_VLEN); 326210767Srpaulo } 327210767Srpaulo 328178481Sjb if (tp->t_type == STRUCT) 329178481Sjb ctt.ctt_info = CTF_TYPE_INFO(CTF_K_STRUCT, isroot, i); 330178481Sjb else 331178481Sjb ctt.ctt_info = CTF_TYPE_INFO(CTF_K_UNION, isroot, i); 332178481Sjb 333178481Sjb write_sized_type_rec(b, &ctt, tp->t_size); 334178481Sjb 335178481Sjb if (tp->t_size < CTF_LSTRUCT_THRESH) { 336178481Sjb for (mp = tp->t_members; mp != NULL; mp = mp->ml_next) { 337178481Sjb offset = strtab_insert(&b->ctb_strtab, 338178481Sjb mp->ml_name); 339178481Sjb 340178481Sjb ctm.ctm_name = CTF_TYPE_NAME(CTF_STRTAB_0, 341178481Sjb offset); 342178481Sjb ctm.ctm_type = mp->ml_type->t_id; 343178481Sjb ctm.ctm_offset = mp->ml_offset; 344178481Sjb ctf_buf_write(b, &ctm, sizeof (ctm)); 345178481Sjb } 346178481Sjb } else { 347178481Sjb for (mp = tp->t_members; mp != NULL; mp = mp->ml_next) { 348178481Sjb offset = strtab_insert(&b->ctb_strtab, 349178481Sjb mp->ml_name); 350178481Sjb 351178481Sjb ctlm.ctlm_name = CTF_TYPE_NAME(CTF_STRTAB_0, 352178481Sjb offset); 353178481Sjb ctlm.ctlm_type = mp->ml_type->t_id; 354178481Sjb ctlm.ctlm_offsethi = 355178481Sjb CTF_OFFSET_TO_LMEMHI(mp->ml_offset); 356178481Sjb ctlm.ctlm_offsetlo = 357178481Sjb CTF_OFFSET_TO_LMEMLO(mp->ml_offset); 358178481Sjb ctf_buf_write(b, &ctlm, sizeof (ctlm)); 359178481Sjb } 360178481Sjb } 361178481Sjb break; 362178481Sjb 363178481Sjb case ENUM: 364178481Sjb for (i = 0, ep = tp->t_emem; ep != NULL; ep = ep->el_next) 365178481Sjb i++; /* count up enum members */ 366178481Sjb 367207578Skan if (i > CTF_MAX_VLEN) { 368207578Skan warning("enum %s has too many values: %d > %d\n", 369207578Skan tdesc_name(tp), i, CTF_MAX_VLEN); 370207578Skan i = CTF_MAX_VLEN; 371207578Skan } 372207578Skan 373178481Sjb ctt.ctt_info = CTF_TYPE_INFO(CTF_K_ENUM, isroot, i); 374178481Sjb write_sized_type_rec(b, &ctt, tp->t_size); 375178481Sjb 376207578Skan for (ep = tp->t_emem; ep != NULL && i > 0; ep = ep->el_next) { 377178481Sjb offset = strtab_insert(&b->ctb_strtab, ep->el_name); 378178481Sjb cte.cte_name = CTF_TYPE_NAME(CTF_STRTAB_0, offset); 379178481Sjb cte.cte_value = ep->el_number; 380178481Sjb ctf_buf_write(b, &cte, sizeof (cte)); 381207578Skan i--; 382178481Sjb } 383178481Sjb break; 384178481Sjb 385178481Sjb case FORWARD: 386178481Sjb ctt.ctt_info = CTF_TYPE_INFO(CTF_K_FORWARD, isroot, 0); 387178481Sjb ctt.ctt_type = 0; 388178481Sjb write_unsized_type_rec(b, &ctt); 389178481Sjb break; 390178481Sjb 391178481Sjb case TYPEDEF: 392178481Sjb ctt.ctt_info = CTF_TYPE_INFO(CTF_K_TYPEDEF, isroot, 0); 393178481Sjb ctt.ctt_type = tp->t_tdesc->t_id; 394178481Sjb write_unsized_type_rec(b, &ctt); 395178481Sjb break; 396178481Sjb 397178481Sjb case VOLATILE: 398178481Sjb ctt.ctt_info = CTF_TYPE_INFO(CTF_K_VOLATILE, isroot, 0); 399178481Sjb ctt.ctt_type = tp->t_tdesc->t_id; 400178481Sjb write_unsized_type_rec(b, &ctt); 401178481Sjb break; 402178481Sjb 403178481Sjb case CONST: 404178481Sjb ctt.ctt_info = CTF_TYPE_INFO(CTF_K_CONST, isroot, 0); 405178481Sjb ctt.ctt_type = tp->t_tdesc->t_id; 406178481Sjb write_unsized_type_rec(b, &ctt); 407178481Sjb break; 408178481Sjb 409178481Sjb case FUNCTION: 410210767Srpaulo i = tp->t_fndef->fn_nargs + tp->t_fndef->fn_vargs; 411210767Srpaulo 412210767Srpaulo if (i > CTF_MAX_VLEN) { 413210767Srpaulo terminate("function %s has too many args: %d > %d\n", 414210767Srpaulo i, CTF_MAX_VLEN); 415210767Srpaulo } 416210767Srpaulo 417210767Srpaulo ctt.ctt_info = CTF_TYPE_INFO(CTF_K_FUNCTION, isroot, i); 418178481Sjb ctt.ctt_type = tp->t_fndef->fn_ret->t_id; 419178481Sjb write_unsized_type_rec(b, &ctt); 420178481Sjb 421178546Sjb for (i = 0; i < (int) tp->t_fndef->fn_nargs; i++) { 422178481Sjb id = tp->t_fndef->fn_args[i]->t_id; 423178481Sjb ctf_buf_write(b, &id, sizeof (id)); 424178481Sjb } 425178481Sjb 426178481Sjb if (tp->t_fndef->fn_vargs) { 427178481Sjb id = 0; 428178481Sjb ctf_buf_write(b, &id, sizeof (id)); 429178481Sjb i++; 430178481Sjb } 431178481Sjb 432178481Sjb if (i & 1) { 433178481Sjb id = 0; 434178481Sjb ctf_buf_write(b, &id, sizeof (id)); 435178481Sjb } 436178481Sjb break; 437178481Sjb 438178481Sjb case RESTRICT: 439178481Sjb ctt.ctt_info = CTF_TYPE_INFO(CTF_K_RESTRICT, isroot, 0); 440178481Sjb ctt.ctt_type = tp->t_tdesc->t_id; 441178481Sjb write_unsized_type_rec(b, &ctt); 442178481Sjb break; 443178481Sjb 444178481Sjb default: 445178481Sjb warning("Can't write unknown type %d\n", tp->t_type); 446178481Sjb } 447178481Sjb 448178481Sjb debug(3, "Wrote type %d %s\n", tp->t_id, tdesc_name(tp)); 449178481Sjb 450178481Sjb return (1); 451178481Sjb} 452178481Sjb 453178481Sjbtypedef struct resbuf { 454178481Sjb caddr_t rb_base; 455178481Sjb caddr_t rb_ptr; 456178481Sjb size_t rb_size; 457178481Sjb z_stream rb_zstr; 458178481Sjb} resbuf_t; 459178481Sjb 460178481Sjbstatic void 461178481Sjbrbzs_grow(resbuf_t *rb) 462178481Sjb{ 463178481Sjb off_t ptroff = (caddr_t)rb->rb_zstr.next_out - rb->rb_base; 464178481Sjb 465178481Sjb rb->rb_size += RES_BUF_CHUNK_SIZE; 466178481Sjb rb->rb_base = xrealloc(rb->rb_base, rb->rb_size); 467178481Sjb rb->rb_ptr = rb->rb_base + ptroff; 468178481Sjb rb->rb_zstr.next_out = (Bytef *)(rb->rb_ptr); 469178481Sjb rb->rb_zstr.avail_out += RES_BUF_CHUNK_SIZE; 470178481Sjb} 471178481Sjb 472178481Sjbstatic void 473178481Sjbcompress_start(resbuf_t *rb) 474178481Sjb{ 475178481Sjb int rc; 476178481Sjb 477178481Sjb rb->rb_zstr.zalloc = (alloc_func)0; 478178481Sjb rb->rb_zstr.zfree = (free_func)0; 479178481Sjb rb->rb_zstr.opaque = (voidpf)0; 480178481Sjb 481178481Sjb if ((rc = deflateInit(&rb->rb_zstr, Z_BEST_COMPRESSION)) != Z_OK) 482178481Sjb parseterminate("zlib start failed: %s", zError(rc)); 483178481Sjb} 484178481Sjb 485178481Sjbstatic ssize_t 486178546Sjbcompress_buffer(void *buf, size_t n, void *data) 487178481Sjb{ 488178481Sjb resbuf_t *rb = (resbuf_t *)data; 489178481Sjb int rc; 490178481Sjb 491178481Sjb rb->rb_zstr.next_out = (Bytef *)rb->rb_ptr; 492178481Sjb rb->rb_zstr.avail_out = rb->rb_size - (rb->rb_ptr - rb->rb_base); 493178546Sjb rb->rb_zstr.next_in = buf; 494178481Sjb rb->rb_zstr.avail_in = n; 495178481Sjb 496178481Sjb while (rb->rb_zstr.avail_in) { 497178481Sjb if (rb->rb_zstr.avail_out == 0) 498178481Sjb rbzs_grow(rb); 499178481Sjb 500178481Sjb if ((rc = deflate(&rb->rb_zstr, Z_NO_FLUSH)) != Z_OK) 501178481Sjb parseterminate("zlib deflate failed: %s", zError(rc)); 502178481Sjb } 503178481Sjb rb->rb_ptr = (caddr_t)rb->rb_zstr.next_out; 504178481Sjb 505178481Sjb return (n); 506178481Sjb} 507178481Sjb 508178481Sjbstatic void 509178481Sjbcompress_flush(resbuf_t *rb, int type) 510178481Sjb{ 511178481Sjb int rc; 512178481Sjb 513178481Sjb for (;;) { 514178481Sjb if (rb->rb_zstr.avail_out == 0) 515178481Sjb rbzs_grow(rb); 516178481Sjb 517178481Sjb rc = deflate(&rb->rb_zstr, type); 518178481Sjb if ((type == Z_FULL_FLUSH && rc == Z_BUF_ERROR) || 519178481Sjb (type == Z_FINISH && rc == Z_STREAM_END)) 520178481Sjb break; 521178481Sjb else if (rc != Z_OK) 522178481Sjb parseterminate("zlib finish failed: %s", zError(rc)); 523178481Sjb } 524178481Sjb rb->rb_ptr = (caddr_t)rb->rb_zstr.next_out; 525178481Sjb} 526178481Sjb 527178481Sjbstatic void 528178481Sjbcompress_end(resbuf_t *rb) 529178481Sjb{ 530178481Sjb int rc; 531178481Sjb 532178481Sjb compress_flush(rb, Z_FINISH); 533178481Sjb 534178481Sjb if ((rc = deflateEnd(&rb->rb_zstr)) != Z_OK) 535178481Sjb parseterminate("zlib end failed: %s", zError(rc)); 536178481Sjb} 537178481Sjb 538178481Sjb/* 539178481Sjb * Pad the buffer to a power-of-2 boundary 540178481Sjb */ 541178481Sjbstatic void 542178481Sjbpad_buffer(ctf_buf_t *buf, int align) 543178481Sjb{ 544178481Sjb uint_t cur = ctf_buf_cur(buf); 545178481Sjb ssize_t topad = (align - (cur % align)) % align; 546178481Sjb static const char pad[8] = { 0 }; 547178481Sjb 548178481Sjb while (topad > 0) { 549178481Sjb ctf_buf_write(buf, pad, (topad > 8 ? 8 : topad)); 550178481Sjb topad -= 8; 551178481Sjb } 552178481Sjb} 553178481Sjb 554178481Sjbstatic ssize_t 555178546Sjbbcopy_data(void *buf, size_t n, void *data) 556178481Sjb{ 557178481Sjb caddr_t *posp = (caddr_t *)data; 558178481Sjb bcopy(buf, *posp, n); 559178481Sjb *posp += n; 560178481Sjb return (n); 561178481Sjb} 562178481Sjb 563178481Sjbstatic caddr_t 564178481Sjbwrite_buffer(ctf_header_t *h, ctf_buf_t *buf, size_t *resszp) 565178481Sjb{ 566178481Sjb caddr_t outbuf; 567178481Sjb caddr_t bufpos; 568178481Sjb 569178481Sjb outbuf = xmalloc(sizeof (ctf_header_t) + (buf->ctb_ptr - buf->ctb_base) 570178481Sjb + buf->ctb_strtab.str_size); 571178481Sjb 572178481Sjb bufpos = outbuf; 573178481Sjb (void) bcopy_data(h, sizeof (ctf_header_t), &bufpos); 574178481Sjb (void) bcopy_data(buf->ctb_base, buf->ctb_ptr - buf->ctb_base, 575178481Sjb &bufpos); 576178481Sjb (void) strtab_write(&buf->ctb_strtab, bcopy_data, &bufpos); 577178481Sjb *resszp = bufpos - outbuf; 578178481Sjb return (outbuf); 579178481Sjb} 580178481Sjb 581178481Sjb/* 582178481Sjb * Create the compression buffer, and fill it with the CTF and string 583178481Sjb * table data. We flush the compression state between the two so the 584178481Sjb * dictionary used for the string tables won't be polluted with values 585178481Sjb * that made sense for the CTF data. 586178481Sjb */ 587178481Sjbstatic caddr_t 588178481Sjbwrite_compressed_buffer(ctf_header_t *h, ctf_buf_t *buf, size_t *resszp) 589178481Sjb{ 590178481Sjb resbuf_t resbuf; 591178481Sjb resbuf.rb_size = RES_BUF_CHUNK_SIZE; 592178481Sjb resbuf.rb_base = xmalloc(resbuf.rb_size); 593178481Sjb bcopy(h, resbuf.rb_base, sizeof (ctf_header_t)); 594178481Sjb resbuf.rb_ptr = resbuf.rb_base + sizeof (ctf_header_t); 595178481Sjb 596178481Sjb compress_start(&resbuf); 597178481Sjb (void) compress_buffer(buf->ctb_base, buf->ctb_ptr - buf->ctb_base, 598178481Sjb &resbuf); 599178481Sjb compress_flush(&resbuf, Z_FULL_FLUSH); 600178481Sjb (void) strtab_write(&buf->ctb_strtab, compress_buffer, &resbuf); 601178481Sjb compress_end(&resbuf); 602178481Sjb 603178481Sjb *resszp = (resbuf.rb_ptr - resbuf.rb_base); 604178481Sjb return (resbuf.rb_base); 605178481Sjb} 606178481Sjb 607178481Sjbcaddr_t 608178481Sjbctf_gen(iiburst_t *iiburst, size_t *resszp, int do_compress) 609178481Sjb{ 610178481Sjb ctf_buf_t *buf = ctf_buf_new(); 611178481Sjb ctf_header_t h; 612178481Sjb caddr_t outbuf; 613178481Sjb 614178481Sjb int i; 615178481Sjb 616178481Sjb /* 617178481Sjb * Prepare the header, and create the CTF output buffers. The data 618178481Sjb * object section and function section are both lists of 2-byte 619178481Sjb * integers; we pad these out to the next 4-byte boundary if needed. 620178481Sjb */ 621178481Sjb h.cth_magic = CTF_MAGIC; 622178481Sjb h.cth_version = CTF_VERSION; 623178481Sjb h.cth_flags = do_compress ? CTF_F_COMPRESS : 0; 624178481Sjb h.cth_parlabel = strtab_insert(&buf->ctb_strtab, 625178481Sjb iiburst->iib_td->td_parlabel); 626178481Sjb h.cth_parname = strtab_insert(&buf->ctb_strtab, 627178481Sjb iiburst->iib_td->td_parname); 628178481Sjb 629178481Sjb h.cth_lbloff = 0; 630178546Sjb (void) list_iter(iiburst->iib_td->td_labels, write_label, 631178481Sjb buf); 632178481Sjb 633178481Sjb pad_buffer(buf, 2); 634178481Sjb h.cth_objtoff = ctf_buf_cur(buf); 635178481Sjb for (i = 0; i < iiburst->iib_nobjts; i++) 636178481Sjb write_objects(iiburst->iib_objts[i], buf); 637178481Sjb 638178481Sjb pad_buffer(buf, 2); 639178481Sjb h.cth_funcoff = ctf_buf_cur(buf); 640178481Sjb for (i = 0; i < iiburst->iib_nfuncs; i++) 641178481Sjb write_functions(iiburst->iib_funcs[i], buf); 642178481Sjb 643178481Sjb pad_buffer(buf, 4); 644178481Sjb h.cth_typeoff = ctf_buf_cur(buf); 645178546Sjb (void) list_iter(iiburst->iib_types, write_type, buf); 646178481Sjb 647178481Sjb debug(2, "CTF wrote %d types\n", list_count(iiburst->iib_types)); 648178481Sjb 649178481Sjb h.cth_stroff = ctf_buf_cur(buf); 650178481Sjb h.cth_strlen = strtab_size(&buf->ctb_strtab); 651178481Sjb 652178481Sjb /* 653178481Sjb * We only do compression for ctfmerge, as ctfconvert is only 654178481Sjb * supposed to be used on intermediary build objects. This is 655178481Sjb * significantly faster. 656178481Sjb */ 657178481Sjb if (do_compress) 658178481Sjb outbuf = write_compressed_buffer(&h, buf, resszp); 659178481Sjb else 660178481Sjb outbuf = write_buffer(&h, buf, resszp); 661178481Sjb 662178481Sjb ctf_buf_free(buf); 663178481Sjb return (outbuf); 664178481Sjb} 665178481Sjb 666178546Sjbstatic void 667178481Sjbget_ctt_size(ctf_type_t *ctt, size_t *sizep, size_t *incrementp) 668178481Sjb{ 669178481Sjb if (ctt->ctt_size == CTF_LSIZE_SENT) { 670178481Sjb *sizep = (size_t)CTF_TYPE_LSIZE(ctt); 671178481Sjb *incrementp = sizeof (ctf_type_t); 672178481Sjb } else { 673178481Sjb *sizep = ctt->ctt_size; 674178481Sjb *incrementp = sizeof (ctf_stype_t); 675178481Sjb } 676178481Sjb} 677178481Sjb 678178481Sjbstatic int 679178481Sjbcount_types(ctf_header_t *h, caddr_t data) 680178481Sjb{ 681178481Sjb caddr_t dptr = data + h->cth_typeoff; 682178481Sjb int count = 0; 683178481Sjb 684178481Sjb dptr = data + h->cth_typeoff; 685178481Sjb while (dptr < data + h->cth_stroff) { 686178546Sjb void *v = (void *) dptr; 687178546Sjb ctf_type_t *ctt = v; 688178481Sjb size_t vlen = CTF_INFO_VLEN(ctt->ctt_info); 689178481Sjb size_t size, increment; 690178481Sjb 691178481Sjb get_ctt_size(ctt, &size, &increment); 692178481Sjb 693178481Sjb switch (CTF_INFO_KIND(ctt->ctt_info)) { 694178481Sjb case CTF_K_INTEGER: 695178481Sjb case CTF_K_FLOAT: 696178481Sjb dptr += 4; 697178481Sjb break; 698178481Sjb case CTF_K_POINTER: 699178481Sjb case CTF_K_FORWARD: 700178481Sjb case CTF_K_TYPEDEF: 701178481Sjb case CTF_K_VOLATILE: 702178481Sjb case CTF_K_CONST: 703178481Sjb case CTF_K_RESTRICT: 704178481Sjb case CTF_K_FUNCTION: 705178481Sjb dptr += sizeof (ushort_t) * (vlen + (vlen & 1)); 706178481Sjb break; 707178481Sjb case CTF_K_ARRAY: 708178481Sjb dptr += sizeof (ctf_array_t); 709178481Sjb break; 710178481Sjb case CTF_K_STRUCT: 711178481Sjb case CTF_K_UNION: 712178481Sjb if (size < CTF_LSTRUCT_THRESH) 713178481Sjb dptr += sizeof (ctf_member_t) * vlen; 714178481Sjb else 715178481Sjb dptr += sizeof (ctf_lmember_t) * vlen; 716178481Sjb break; 717178481Sjb case CTF_K_ENUM: 718178481Sjb dptr += sizeof (ctf_enum_t) * vlen; 719178481Sjb break; 720178481Sjb case CTF_K_UNKNOWN: 721178481Sjb break; 722178481Sjb default: 723178481Sjb parseterminate("Unknown CTF type %d (#%d) at %#x", 724178481Sjb CTF_INFO_KIND(ctt->ctt_info), count, dptr - data); 725178481Sjb } 726178481Sjb 727178481Sjb dptr += increment; 728178481Sjb count++; 729178481Sjb } 730178481Sjb 731178481Sjb debug(3, "CTF read %d types\n", count); 732178481Sjb 733178481Sjb return (count); 734178481Sjb} 735178481Sjb 736178481Sjb/* 737178481Sjb * Resurrect the labels stored in the CTF data, returning the index associated 738178481Sjb * with a label provided by the caller. There are several cases, outlined 739178481Sjb * below. Note that, given two labels, the one associated with the lesser type 740178481Sjb * index is considered to be older than the other. 741178481Sjb * 742178481Sjb * 1. matchlbl == NULL - return the index of the most recent label. 743178481Sjb * 2. matchlbl == "BASE" - return the index of the oldest label. 744178481Sjb * 3. matchlbl != NULL, but doesn't match any labels in the section - warn 745178481Sjb * the user, and proceed as if matchlbl == "BASE" (for safety). 746178481Sjb * 4. matchlbl != NULL, and matches one of the labels in the section - return 747178481Sjb * the type index associated with the label. 748178481Sjb */ 749178481Sjbstatic int 750178481Sjbresurrect_labels(ctf_header_t *h, tdata_t *td, caddr_t ctfdata, char *matchlbl) 751178481Sjb{ 752178481Sjb caddr_t buf = ctfdata + h->cth_lbloff; 753178481Sjb caddr_t sbuf = ctfdata + h->cth_stroff; 754178481Sjb size_t bufsz = h->cth_objtoff - h->cth_lbloff; 755178481Sjb int lastidx = 0, baseidx = -1; 756178546Sjb char *baselabel = NULL; 757178481Sjb ctf_lblent_t *ctl; 758178546Sjb void *v = (void *) buf; 759178481Sjb 760178546Sjb for (ctl = v; (caddr_t)ctl < buf + bufsz; ctl++) { 761178481Sjb char *label = sbuf + ctl->ctl_label; 762178481Sjb 763178481Sjb lastidx = ctl->ctl_typeidx; 764178481Sjb 765178481Sjb debug(3, "Resurrected label %s type idx %d\n", label, lastidx); 766178481Sjb 767178481Sjb tdata_label_add(td, label, lastidx); 768178481Sjb 769178481Sjb if (baseidx == -1) { 770178481Sjb baseidx = lastidx; 771178481Sjb baselabel = label; 772178481Sjb if (matchlbl != NULL && streq(matchlbl, "BASE")) 773178481Sjb return (lastidx); 774178481Sjb } 775178481Sjb 776178481Sjb if (matchlbl != NULL && streq(label, matchlbl)) 777178481Sjb return (lastidx); 778178481Sjb } 779178481Sjb 780178481Sjb if (matchlbl != NULL) { 781178481Sjb /* User provided a label that didn't match */ 782178481Sjb warning("%s: Cannot find label `%s' - using base (%s)\n", 783178481Sjb curfile, matchlbl, (baselabel ? baselabel : "NONE")); 784178481Sjb 785178481Sjb tdata_label_free(td); 786178481Sjb tdata_label_add(td, baselabel, baseidx); 787178481Sjb 788178481Sjb return (baseidx); 789178481Sjb } 790178481Sjb 791178481Sjb return (lastidx); 792178481Sjb} 793178481Sjb 794178481Sjbstatic void 795178481Sjbresurrect_objects(ctf_header_t *h, tdata_t *td, tdesc_t **tdarr, int tdsize, 796178481Sjb caddr_t ctfdata, symit_data_t *si) 797178481Sjb{ 798178481Sjb caddr_t buf = ctfdata + h->cth_objtoff; 799178481Sjb size_t bufsz = h->cth_funcoff - h->cth_objtoff; 800178481Sjb caddr_t dptr; 801178481Sjb 802178481Sjb symit_reset(si); 803178481Sjb for (dptr = buf; dptr < buf + bufsz; dptr += 2) { 804178546Sjb void *v = (void *) dptr; 805178546Sjb ushort_t id = *((ushort_t *)v); 806178481Sjb iidesc_t *ii; 807178481Sjb GElf_Sym *sym; 808178481Sjb 809178481Sjb if (!(sym = symit_next(si, STT_OBJECT)) && id != 0) { 810178481Sjb parseterminate( 811178481Sjb "Unexpected end of object symbols at %x of %x", 812178481Sjb dptr - buf, bufsz); 813178481Sjb } 814178481Sjb 815178481Sjb if (id == 0) { 816178481Sjb debug(3, "Skipping null object\n"); 817178481Sjb continue; 818178481Sjb } else if (id >= tdsize) { 819178481Sjb parseterminate("Reference to invalid type %d", id); 820178481Sjb } 821178481Sjb 822178481Sjb ii = iidesc_new(symit_name(si)); 823178481Sjb ii->ii_dtype = tdarr[id]; 824178481Sjb if (GELF_ST_BIND(sym->st_info) == STB_LOCAL) { 825178481Sjb ii->ii_type = II_SVAR; 826178481Sjb ii->ii_owner = xstrdup(symit_curfile(si)); 827178481Sjb } else 828178481Sjb ii->ii_type = II_GVAR; 829178481Sjb hash_add(td->td_iihash, ii); 830178481Sjb 831178481Sjb debug(3, "Resurrected %s object %s (%d) from %s\n", 832178481Sjb (ii->ii_type == II_GVAR ? "global" : "static"), 833178481Sjb ii->ii_name, id, (ii->ii_owner ? ii->ii_owner : "(none)")); 834178481Sjb } 835178481Sjb} 836178481Sjb 837178481Sjbstatic void 838178481Sjbresurrect_functions(ctf_header_t *h, tdata_t *td, tdesc_t **tdarr, int tdsize, 839178481Sjb caddr_t ctfdata, symit_data_t *si) 840178481Sjb{ 841178481Sjb caddr_t buf = ctfdata + h->cth_funcoff; 842178481Sjb size_t bufsz = h->cth_typeoff - h->cth_funcoff; 843178481Sjb caddr_t dptr = buf; 844178481Sjb iidesc_t *ii; 845178481Sjb ushort_t info; 846178481Sjb ushort_t retid; 847178481Sjb GElf_Sym *sym; 848178481Sjb int i; 849178481Sjb 850178481Sjb symit_reset(si); 851178481Sjb while (dptr < buf + bufsz) { 852178546Sjb void *v = (void *) dptr; 853178546Sjb info = *((ushort_t *)v); 854178481Sjb dptr += 2; 855178481Sjb 856178481Sjb if (!(sym = symit_next(si, STT_FUNC)) && info != 0) 857178481Sjb parseterminate("Unexpected end of function symbols"); 858178481Sjb 859178481Sjb if (info == 0) { 860178481Sjb debug(3, "Skipping null function (%s)\n", 861178481Sjb symit_name(si)); 862178481Sjb continue; 863178481Sjb } 864178481Sjb 865178546Sjb v = (void *) dptr; 866178546Sjb retid = *((ushort_t *)v); 867178481Sjb dptr += 2; 868178481Sjb 869178481Sjb if (retid >= tdsize) 870178481Sjb parseterminate("Reference to invalid type %d", retid); 871178481Sjb 872178481Sjb ii = iidesc_new(symit_name(si)); 873178481Sjb ii->ii_dtype = tdarr[retid]; 874178481Sjb if (GELF_ST_BIND(sym->st_info) == STB_LOCAL) { 875178481Sjb ii->ii_type = II_SFUN; 876178481Sjb ii->ii_owner = xstrdup(symit_curfile(si)); 877178481Sjb } else 878178481Sjb ii->ii_type = II_GFUN; 879178481Sjb ii->ii_nargs = CTF_INFO_VLEN(info); 880178481Sjb if (ii->ii_nargs) 881178481Sjb ii->ii_args = 882178481Sjb xmalloc(sizeof (tdesc_t *) * ii->ii_nargs); 883178481Sjb 884178481Sjb for (i = 0; i < ii->ii_nargs; i++, dptr += 2) { 885178546Sjb v = (void *) dptr; 886178546Sjb ushort_t id = *((ushort_t *)v); 887178481Sjb if (id >= tdsize) 888178481Sjb parseterminate("Reference to invalid type %d", 889178481Sjb id); 890178481Sjb ii->ii_args[i] = tdarr[id]; 891178481Sjb } 892178481Sjb 893178481Sjb if (ii->ii_nargs && ii->ii_args[ii->ii_nargs - 1] == NULL) { 894178481Sjb ii->ii_nargs--; 895178481Sjb ii->ii_vargs = 1; 896178481Sjb } 897178481Sjb 898178481Sjb hash_add(td->td_iihash, ii); 899178481Sjb 900178481Sjb debug(3, "Resurrected %s function %s (%d, %d args)\n", 901178481Sjb (ii->ii_type == II_GFUN ? "global" : "static"), 902178481Sjb ii->ii_name, retid, ii->ii_nargs); 903178481Sjb } 904178481Sjb} 905178481Sjb 906178481Sjbstatic void 907178481Sjbresurrect_types(ctf_header_t *h, tdata_t *td, tdesc_t **tdarr, int tdsize, 908178481Sjb caddr_t ctfdata, int maxid) 909178481Sjb{ 910178481Sjb caddr_t buf = ctfdata + h->cth_typeoff; 911178481Sjb size_t bufsz = h->cth_stroff - h->cth_typeoff; 912178481Sjb caddr_t sbuf = ctfdata + h->cth_stroff; 913178481Sjb caddr_t dptr = buf; 914178481Sjb tdesc_t *tdp; 915178481Sjb uint_t data; 916178481Sjb uint_t encoding; 917178481Sjb size_t size, increment; 918178481Sjb int tcnt; 919178481Sjb int iicnt = 0; 920178481Sjb tid_t tid, argid; 921178481Sjb int kind, vlen; 922178481Sjb int i; 923178481Sjb 924178481Sjb elist_t **epp; 925178481Sjb mlist_t **mpp; 926178481Sjb intr_t *ip; 927178481Sjb 928178481Sjb ctf_type_t *ctt; 929178481Sjb ctf_array_t *cta; 930178481Sjb ctf_enum_t *cte; 931178481Sjb 932178481Sjb /* 933178481Sjb * A maxid of zero indicates a request to resurrect all types, so reset 934178481Sjb * maxid to the maximum type id. 935178481Sjb */ 936178481Sjb if (maxid == 0) 937178481Sjb maxid = CTF_MAX_TYPE; 938178481Sjb 939178481Sjb for (dptr = buf, tcnt = 0, tid = 1; dptr < buf + bufsz; tcnt++, tid++) { 940178481Sjb if (tid > maxid) 941178481Sjb break; 942178481Sjb 943178481Sjb if (tid >= tdsize) 944178481Sjb parseterminate("Reference to invalid type %d", tid); 945178481Sjb 946178546Sjb void *v = (void *) dptr; 947178546Sjb ctt = v; 948178481Sjb 949178481Sjb get_ctt_size(ctt, &size, &increment); 950178481Sjb dptr += increment; 951178481Sjb 952178481Sjb tdp = tdarr[tid]; 953178481Sjb 954178481Sjb if (CTF_NAME_STID(ctt->ctt_name) != CTF_STRTAB_0) 955178481Sjb parseterminate( 956210767Srpaulo "Unable to cope with non-zero strtab id"); 957178481Sjb if (CTF_NAME_OFFSET(ctt->ctt_name) != 0) { 958178481Sjb tdp->t_name = 959178481Sjb xstrdup(sbuf + CTF_NAME_OFFSET(ctt->ctt_name)); 960178481Sjb } else 961178481Sjb tdp->t_name = NULL; 962178481Sjb 963178481Sjb kind = CTF_INFO_KIND(ctt->ctt_info); 964178481Sjb vlen = CTF_INFO_VLEN(ctt->ctt_info); 965178481Sjb 966178481Sjb switch (kind) { 967178481Sjb case CTF_K_INTEGER: 968178481Sjb tdp->t_type = INTRINSIC; 969178481Sjb tdp->t_size = size; 970178481Sjb 971178546Sjb v = (void *) dptr; 972178546Sjb data = *((uint_t *)v); 973178481Sjb dptr += sizeof (uint_t); 974178481Sjb encoding = CTF_INT_ENCODING(data); 975178481Sjb 976178481Sjb ip = xmalloc(sizeof (intr_t)); 977178481Sjb ip->intr_type = INTR_INT; 978178481Sjb ip->intr_signed = (encoding & CTF_INT_SIGNED) ? 1 : 0; 979178481Sjb 980178481Sjb if (encoding & CTF_INT_CHAR) 981178481Sjb ip->intr_iformat = 'c'; 982178481Sjb else if (encoding & CTF_INT_BOOL) 983178481Sjb ip->intr_iformat = 'b'; 984178481Sjb else if (encoding & CTF_INT_VARARGS) 985178481Sjb ip->intr_iformat = 'v'; 986178481Sjb else 987178481Sjb ip->intr_iformat = '\0'; 988178481Sjb 989178481Sjb ip->intr_offset = CTF_INT_OFFSET(data); 990178481Sjb ip->intr_nbits = CTF_INT_BITS(data); 991178481Sjb tdp->t_intr = ip; 992178481Sjb break; 993178481Sjb 994178481Sjb case CTF_K_FLOAT: 995178481Sjb tdp->t_type = INTRINSIC; 996178481Sjb tdp->t_size = size; 997178481Sjb 998178546Sjb v = (void *) dptr; 999178546Sjb data = *((uint_t *)v); 1000178481Sjb dptr += sizeof (uint_t); 1001178481Sjb 1002178481Sjb ip = xcalloc(sizeof (intr_t)); 1003178481Sjb ip->intr_type = INTR_REAL; 1004178481Sjb ip->intr_fformat = CTF_FP_ENCODING(data); 1005178481Sjb ip->intr_offset = CTF_FP_OFFSET(data); 1006178481Sjb ip->intr_nbits = CTF_FP_BITS(data); 1007178481Sjb tdp->t_intr = ip; 1008178481Sjb break; 1009178481Sjb 1010178481Sjb case CTF_K_POINTER: 1011178481Sjb tdp->t_type = POINTER; 1012178481Sjb tdp->t_tdesc = tdarr[ctt->ctt_type]; 1013178481Sjb break; 1014178481Sjb 1015178481Sjb case CTF_K_ARRAY: 1016178481Sjb tdp->t_type = ARRAY; 1017178481Sjb tdp->t_size = size; 1018178481Sjb 1019178546Sjb v = (void *) dptr; 1020178546Sjb cta = v; 1021178481Sjb dptr += sizeof (ctf_array_t); 1022178481Sjb 1023178481Sjb tdp->t_ardef = xmalloc(sizeof (ardef_t)); 1024178481Sjb tdp->t_ardef->ad_contents = tdarr[cta->cta_contents]; 1025178481Sjb tdp->t_ardef->ad_idxtype = tdarr[cta->cta_index]; 1026178481Sjb tdp->t_ardef->ad_nelems = cta->cta_nelems; 1027178481Sjb break; 1028178481Sjb 1029178481Sjb case CTF_K_STRUCT: 1030178481Sjb case CTF_K_UNION: 1031178481Sjb tdp->t_type = (kind == CTF_K_STRUCT ? STRUCT : UNION); 1032178481Sjb tdp->t_size = size; 1033178481Sjb 1034178481Sjb if (size < CTF_LSTRUCT_THRESH) { 1035178481Sjb for (i = 0, mpp = &tdp->t_members; i < vlen; 1036178481Sjb i++, mpp = &((*mpp)->ml_next)) { 1037178546Sjb v = (void *) dptr; 1038178546Sjb ctf_member_t *ctm = v; 1039178481Sjb dptr += sizeof (ctf_member_t); 1040178481Sjb 1041178481Sjb *mpp = xmalloc(sizeof (mlist_t)); 1042178481Sjb (*mpp)->ml_name = xstrdup(sbuf + 1043178481Sjb ctm->ctm_name); 1044178481Sjb (*mpp)->ml_type = tdarr[ctm->ctm_type]; 1045178481Sjb (*mpp)->ml_offset = ctm->ctm_offset; 1046178481Sjb (*mpp)->ml_size = 0; 1047178481Sjb } 1048178481Sjb } else { 1049178481Sjb for (i = 0, mpp = &tdp->t_members; i < vlen; 1050178481Sjb i++, mpp = &((*mpp)->ml_next)) { 1051178546Sjb v = (void *) dptr; 1052178546Sjb ctf_lmember_t *ctlm = v; 1053178481Sjb dptr += sizeof (ctf_lmember_t); 1054178481Sjb 1055178481Sjb *mpp = xmalloc(sizeof (mlist_t)); 1056178481Sjb (*mpp)->ml_name = xstrdup(sbuf + 1057178481Sjb ctlm->ctlm_name); 1058178481Sjb (*mpp)->ml_type = 1059178481Sjb tdarr[ctlm->ctlm_type]; 1060178481Sjb (*mpp)->ml_offset = 1061178481Sjb (int)CTF_LMEM_OFFSET(ctlm); 1062178481Sjb (*mpp)->ml_size = 0; 1063178481Sjb } 1064178481Sjb } 1065178481Sjb 1066178481Sjb *mpp = NULL; 1067178481Sjb break; 1068178481Sjb 1069178481Sjb case CTF_K_ENUM: 1070178481Sjb tdp->t_type = ENUM; 1071178481Sjb tdp->t_size = size; 1072178481Sjb 1073178481Sjb for (i = 0, epp = &tdp->t_emem; i < vlen; 1074178481Sjb i++, epp = &((*epp)->el_next)) { 1075178546Sjb v = (void *) dptr; 1076178546Sjb cte = v; 1077178481Sjb dptr += sizeof (ctf_enum_t); 1078178481Sjb 1079178481Sjb *epp = xmalloc(sizeof (elist_t)); 1080178481Sjb (*epp)->el_name = xstrdup(sbuf + cte->cte_name); 1081178481Sjb (*epp)->el_number = cte->cte_value; 1082178481Sjb } 1083178481Sjb *epp = NULL; 1084178481Sjb break; 1085178481Sjb 1086178481Sjb case CTF_K_FORWARD: 1087178481Sjb tdp->t_type = FORWARD; 1088178481Sjb list_add(&td->td_fwdlist, tdp); 1089178481Sjb break; 1090178481Sjb 1091178481Sjb case CTF_K_TYPEDEF: 1092178481Sjb tdp->t_type = TYPEDEF; 1093178481Sjb tdp->t_tdesc = tdarr[ctt->ctt_type]; 1094178481Sjb break; 1095178481Sjb 1096178481Sjb case CTF_K_VOLATILE: 1097178481Sjb tdp->t_type = VOLATILE; 1098178481Sjb tdp->t_tdesc = tdarr[ctt->ctt_type]; 1099178481Sjb break; 1100178481Sjb 1101178481Sjb case CTF_K_CONST: 1102178481Sjb tdp->t_type = CONST; 1103178481Sjb tdp->t_tdesc = tdarr[ctt->ctt_type]; 1104178481Sjb break; 1105178481Sjb 1106178481Sjb case CTF_K_FUNCTION: 1107178481Sjb tdp->t_type = FUNCTION; 1108178481Sjb tdp->t_fndef = xcalloc(sizeof (fndef_t)); 1109178481Sjb tdp->t_fndef->fn_ret = tdarr[ctt->ctt_type]; 1110178481Sjb 1111178546Sjb v = (void *) (dptr + (sizeof (ushort_t) * (vlen - 1))); 1112178546Sjb if (vlen > 0 && *(ushort_t *)v == 0) 1113178481Sjb tdp->t_fndef->fn_vargs = 1; 1114178481Sjb 1115178481Sjb tdp->t_fndef->fn_nargs = vlen - tdp->t_fndef->fn_vargs; 1116178481Sjb tdp->t_fndef->fn_args = xcalloc(sizeof (tdesc_t) * 1117178481Sjb vlen - tdp->t_fndef->fn_vargs); 1118178481Sjb 1119178481Sjb for (i = 0; i < vlen; i++) { 1120178546Sjb v = (void *) dptr; 1121178546Sjb argid = *(ushort_t *)v; 1122178481Sjb dptr += sizeof (ushort_t); 1123178481Sjb 1124178481Sjb if (argid != 0) 1125178481Sjb tdp->t_fndef->fn_args[i] = tdarr[argid]; 1126178481Sjb } 1127178481Sjb 1128178481Sjb if (vlen & 1) 1129178481Sjb dptr += sizeof (ushort_t); 1130178481Sjb break; 1131178481Sjb 1132178481Sjb case CTF_K_RESTRICT: 1133178481Sjb tdp->t_type = RESTRICT; 1134178481Sjb tdp->t_tdesc = tdarr[ctt->ctt_type]; 1135178481Sjb break; 1136178481Sjb 1137178481Sjb case CTF_K_UNKNOWN: 1138178481Sjb break; 1139178481Sjb 1140178481Sjb default: 1141178481Sjb warning("Can't parse unknown CTF type %d\n", kind); 1142178481Sjb } 1143178481Sjb 1144178481Sjb if (CTF_INFO_ISROOT(ctt->ctt_info)) { 1145178481Sjb iidesc_t *ii = iidesc_new(tdp->t_name); 1146178481Sjb if (tdp->t_type == STRUCT || tdp->t_type == UNION || 1147178481Sjb tdp->t_type == ENUM) 1148178481Sjb ii->ii_type = II_SOU; 1149178481Sjb else 1150178481Sjb ii->ii_type = II_TYPE; 1151178481Sjb ii->ii_dtype = tdp; 1152178481Sjb hash_add(td->td_iihash, ii); 1153178481Sjb 1154178481Sjb iicnt++; 1155178481Sjb } 1156178481Sjb 1157178481Sjb debug(3, "Resurrected %d %stype %s (%d)\n", tdp->t_type, 1158178481Sjb (CTF_INFO_ISROOT(ctt->ctt_info) ? "root " : ""), 1159178481Sjb tdesc_name(tdp), tdp->t_id); 1160178481Sjb } 1161178481Sjb 1162178481Sjb debug(3, "Resurrected %d types (%d were roots)\n", tcnt, iicnt); 1163178481Sjb} 1164178481Sjb 1165178481Sjb/* 1166178481Sjb * For lack of other inspiration, we're going to take the boring route. We 1167178481Sjb * count the number of types. This lets us malloc that many tdesc structs 1168178481Sjb * before we start filling them in. This has the advantage of allowing us to 1169178481Sjb * avoid a merge-esque remap step. 1170178481Sjb */ 1171178481Sjbstatic tdata_t * 1172178481Sjbctf_parse(ctf_header_t *h, caddr_t buf, symit_data_t *si, char *label) 1173178481Sjb{ 1174178481Sjb tdata_t *td = tdata_new(); 1175178481Sjb tdesc_t **tdarr; 1176178481Sjb int ntypes = count_types(h, buf); 1177178481Sjb int idx, i; 1178178481Sjb 1179178481Sjb /* shudder */ 1180178481Sjb tdarr = xcalloc(sizeof (tdesc_t *) * (ntypes + 1)); 1181178481Sjb tdarr[0] = NULL; 1182178481Sjb for (i = 1; i <= ntypes; i++) { 1183178481Sjb tdarr[i] = xcalloc(sizeof (tdesc_t)); 1184178481Sjb tdarr[i]->t_id = i; 1185178481Sjb } 1186178481Sjb 1187178481Sjb td->td_parlabel = xstrdup(buf + h->cth_stroff + h->cth_parlabel); 1188178481Sjb 1189178481Sjb /* we have the technology - we can rebuild them */ 1190178481Sjb idx = resurrect_labels(h, td, buf, label); 1191178481Sjb 1192178481Sjb resurrect_objects(h, td, tdarr, ntypes + 1, buf, si); 1193178481Sjb resurrect_functions(h, td, tdarr, ntypes + 1, buf, si); 1194178481Sjb resurrect_types(h, td, tdarr, ntypes + 1, buf, idx); 1195178481Sjb 1196178481Sjb free(tdarr); 1197178481Sjb 1198178481Sjb td->td_nextid = ntypes + 1; 1199178481Sjb 1200178481Sjb return (td); 1201178481Sjb} 1202178481Sjb 1203178481Sjbstatic size_t 1204178481Sjbdecompress_ctf(caddr_t cbuf, size_t cbufsz, caddr_t dbuf, size_t dbufsz) 1205178481Sjb{ 1206178481Sjb z_stream zstr; 1207178481Sjb int rc; 1208178481Sjb 1209178481Sjb zstr.zalloc = (alloc_func)0; 1210178481Sjb zstr.zfree = (free_func)0; 1211178481Sjb zstr.opaque = (voidpf)0; 1212178481Sjb 1213178481Sjb zstr.next_in = (Bytef *)cbuf; 1214178481Sjb zstr.avail_in = cbufsz; 1215178481Sjb zstr.next_out = (Bytef *)dbuf; 1216178481Sjb zstr.avail_out = dbufsz; 1217178481Sjb 1218178481Sjb if ((rc = inflateInit(&zstr)) != Z_OK || 1219178481Sjb (rc = inflate(&zstr, Z_NO_FLUSH)) != Z_STREAM_END || 1220178481Sjb (rc = inflateEnd(&zstr)) != Z_OK) { 1221178481Sjb warning("CTF decompress zlib error %s\n", zError(rc)); 1222178546Sjb return (0); 1223178481Sjb } 1224178481Sjb 1225178481Sjb debug(3, "reflated %lu bytes to %lu, pointer at %d\n", 1226178481Sjb zstr.total_in, zstr.total_out, (caddr_t)zstr.next_in - cbuf); 1227178481Sjb 1228178481Sjb return (zstr.total_out); 1229178481Sjb} 1230178481Sjb 1231178481Sjb/* 1232178481Sjb * Reconstruct the type tree from a given buffer of CTF data. Only the types 1233178481Sjb * up to the type associated with the provided label, inclusive, will be 1234178481Sjb * reconstructed. If a NULL label is provided, all types will be reconstructed. 1235178481Sjb * 1236178481Sjb * This function won't work on files that have been uniquified. 1237178481Sjb */ 1238178481Sjbtdata_t * 1239178481Sjbctf_load(char *file, caddr_t buf, size_t bufsz, symit_data_t *si, char *label) 1240178481Sjb{ 1241178481Sjb ctf_header_t *h; 1242178481Sjb caddr_t ctfdata; 1243178481Sjb size_t ctfdatasz; 1244178481Sjb tdata_t *td; 1245178481Sjb 1246178481Sjb curfile = file; 1247178481Sjb 1248178481Sjb if (bufsz < sizeof (ctf_header_t)) 1249178481Sjb parseterminate("Corrupt CTF - short header"); 1250178481Sjb 1251178546Sjb void *v = (void *) buf; 1252178546Sjb h = v; 1253178481Sjb buf += sizeof (ctf_header_t); 1254178481Sjb bufsz -= sizeof (ctf_header_t); 1255178481Sjb 1256178481Sjb if (h->cth_magic != CTF_MAGIC) 1257178481Sjb parseterminate("Corrupt CTF - bad magic 0x%x", h->cth_magic); 1258178481Sjb 1259178481Sjb if (h->cth_version != CTF_VERSION) 1260178481Sjb parseterminate("Unknown CTF version %d", h->cth_version); 1261178481Sjb 1262178481Sjb ctfdatasz = h->cth_stroff + h->cth_strlen; 1263178481Sjb if (h->cth_flags & CTF_F_COMPRESS) { 1264178481Sjb size_t actual; 1265178481Sjb 1266178481Sjb ctfdata = xmalloc(ctfdatasz); 1267178481Sjb if ((actual = decompress_ctf(buf, bufsz, ctfdata, ctfdatasz)) != 1268178481Sjb ctfdatasz) { 1269178481Sjb parseterminate("Corrupt CTF - short decompression " 1270178481Sjb "(was %d, expecting %d)", actual, ctfdatasz); 1271178481Sjb } 1272178481Sjb } else { 1273178481Sjb ctfdata = buf; 1274178481Sjb ctfdatasz = bufsz; 1275178481Sjb } 1276178481Sjb 1277178481Sjb td = ctf_parse(h, ctfdata, si, label); 1278178481Sjb 1279178481Sjb if (h->cth_flags & CTF_F_COMPRESS) 1280178481Sjb free(ctfdata); 1281178481Sjb 1282178481Sjb curfile = NULL; 1283178481Sjb 1284178481Sjb return (td); 1285178481Sjb} 1286