pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 1 | /****************************************************************************/ |
| 2 | /* |
| 3 | * QEMU bFLT binary loader. Based on linux/fs/binfmt_flat.c |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
Blue Swirl | 8167ee8 | 2009-07-16 20:47:01 +0000 | [diff] [blame] | 16 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 17 | * |
| 18 | * Copyright (C) 2006 CodeSourcery. |
| 19 | * Copyright (C) 2000-2003 David McCullough <davidm@snapgear.com> |
| 20 | * Copyright (C) 2002 Greg Ungerer <gerg@snapgear.com> |
| 21 | * Copyright (C) 2002 SnapGear, by Paul Dale <pauli@snapgear.com> |
| 22 | * Copyright (C) 2000, 2001 Lineo, by David McCullough <davidm@lineo.com> |
| 23 | * based heavily on: |
| 24 | * |
| 25 | * linux/fs/binfmt_aout.c: |
| 26 | * Copyright (C) 1991, 1992, 1996 Linus Torvalds |
| 27 | * linux/fs/binfmt_flat.c for 2.0 kernel |
| 28 | * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com> |
| 29 | * JAN/99 -- coded full program relocation (gerg@snapgear.com) |
| 30 | */ |
| 31 | |
| 32 | /* ??? ZFLAT and shared library support is currently disabled. */ |
| 33 | |
| 34 | /****************************************************************************/ |
| 35 | |
| 36 | #include <stdio.h> |
| 37 | #include <stdlib.h> |
| 38 | #include <errno.h> |
| 39 | #include <sys/mman.h> |
| 40 | #include <unistd.h> |
| 41 | |
| 42 | #include "qemu.h" |
| 43 | #include "flat.h" |
| 44 | |
| 45 | //#define DEBUG |
| 46 | |
| 47 | #ifdef DEBUG |
Blue Swirl | 001faf3 | 2009-05-13 17:53:17 +0000 | [diff] [blame] | 48 | #define DBG_FLT(...) printf(__VA_ARGS__) |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 49 | #else |
Blue Swirl | 001faf3 | 2009-05-13 17:53:17 +0000 | [diff] [blame] | 50 | #define DBG_FLT(...) |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 51 | #endif |
| 52 | |
| 53 | #define flat_reloc_valid(reloc, size) ((reloc) <= (size)) |
| 54 | #define flat_old_ram_flag(flag) (flag) |
| 55 | #ifdef TARGET_WORDS_BIGENDIAN |
| 56 | #define flat_get_relocate_addr(relval) (relval) |
| 57 | #else |
| 58 | #define flat_get_relocate_addr(relval) bswap32(relval) |
| 59 | #endif |
| 60 | |
| 61 | #define RELOC_FAILED 0xff00ff01 /* Relocation incorrect somewhere */ |
| 62 | #define UNLOADED_LIB 0x7ff000ff /* Placeholder for unused library */ |
| 63 | |
| 64 | struct lib_info { |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 65 | abi_ulong start_code; /* Start of text segment */ |
| 66 | abi_ulong start_data; /* Start of data segment */ |
| 67 | abi_ulong end_data; /* Start of bss section */ |
| 68 | abi_ulong start_brk; /* End of data segment */ |
| 69 | abi_ulong text_len; /* Length of text segment */ |
| 70 | abi_ulong entry; /* Start address for this module */ |
| 71 | abi_ulong build_date; /* When this one was compiled */ |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 72 | short loaded; /* Has this library been loaded? */ |
| 73 | }; |
| 74 | |
| 75 | #ifdef CONFIG_BINFMT_SHARED_FLAT |
| 76 | static int load_flat_shared_library(int id, struct lib_info *p); |
| 77 | #endif |
| 78 | |
| 79 | struct linux_binprm; |
| 80 | |
| 81 | #define ntohl(x) be32_to_cpu(x) |
| 82 | |
| 83 | /****************************************************************************/ |
| 84 | /* |
| 85 | * create_flat_tables() parses the env- and arg-strings in new user |
| 86 | * memory and creates the pointer tables from them, and puts their |
| 87 | * addresses on the "stack", returning the new stack pointer value. |
| 88 | */ |
| 89 | |
| 90 | /* Push a block of strings onto the guest stack. */ |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 91 | static abi_ulong copy_strings(abi_ulong p, int n, char **s) |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 92 | { |
| 93 | int len; |
| 94 | |
| 95 | while (n-- > 0) { |
| 96 | len = strlen(s[n]) + 1; |
| 97 | p -= len; |
| 98 | memcpy_to_target(p, s[n], len); |
| 99 | } |
| 100 | |
| 101 | return p; |
| 102 | } |
| 103 | |
blueswir1 | b1d8e52 | 2008-10-26 13:43:07 +0000 | [diff] [blame] | 104 | static int target_pread(int fd, abi_ulong ptr, abi_ulong len, |
| 105 | abi_ulong offset) |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 106 | { |
| 107 | void *buf; |
| 108 | int ret; |
| 109 | |
bellard | 579a97f | 2007-11-11 14:26:47 +0000 | [diff] [blame] | 110 | buf = lock_user(VERIFY_WRITE, ptr, len, 0); |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 111 | ret = pread(fd, buf, len, offset); |
| 112 | unlock_user(buf, ptr, len); |
| 113 | return ret; |
| 114 | } |
| 115 | /****************************************************************************/ |
| 116 | |
| 117 | #ifdef CONFIG_BINFMT_ZFLAT |
| 118 | |
| 119 | #include <linux/zlib.h> |
| 120 | |
| 121 | #define LBUFSIZE 4000 |
| 122 | |
| 123 | /* gzip flag byte */ |
| 124 | #define ASCII_FLAG 0x01 /* bit 0 set: file probably ASCII text */ |
| 125 | #define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */ |
| 126 | #define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ |
| 127 | #define ORIG_NAME 0x08 /* bit 3 set: original file name present */ |
| 128 | #define COMMENT 0x10 /* bit 4 set: file comment present */ |
| 129 | #define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */ |
| 130 | #define RESERVED 0xC0 /* bit 6,7: reserved */ |
| 131 | |
| 132 | static int decompress_exec( |
| 133 | struct linux_binprm *bprm, |
| 134 | unsigned long offset, |
| 135 | char *dst, |
| 136 | long len, |
| 137 | int fd) |
| 138 | { |
| 139 | unsigned char *buf; |
| 140 | z_stream strm; |
| 141 | loff_t fpos; |
| 142 | int ret, retval; |
| 143 | |
| 144 | DBG_FLT("decompress_exec(offset=%x,buf=%x,len=%x)\n",(int)offset, (int)dst, (int)len); |
| 145 | |
| 146 | memset(&strm, 0, sizeof(strm)); |
| 147 | strm.workspace = kmalloc(zlib_inflate_workspacesize(), GFP_KERNEL); |
| 148 | if (strm.workspace == NULL) { |
| 149 | DBG_FLT("binfmt_flat: no memory for decompress workspace\n"); |
| 150 | return -ENOMEM; |
| 151 | } |
| 152 | buf = kmalloc(LBUFSIZE, GFP_KERNEL); |
| 153 | if (buf == NULL) { |
| 154 | DBG_FLT("binfmt_flat: no memory for read buffer\n"); |
| 155 | retval = -ENOMEM; |
| 156 | goto out_free; |
| 157 | } |
| 158 | |
| 159 | /* Read in first chunk of data and parse gzip header. */ |
| 160 | fpos = offset; |
| 161 | ret = bprm->file->f_op->read(bprm->file, buf, LBUFSIZE, &fpos); |
| 162 | |
| 163 | strm.next_in = buf; |
| 164 | strm.avail_in = ret; |
| 165 | strm.total_in = 0; |
| 166 | |
| 167 | retval = -ENOEXEC; |
| 168 | |
| 169 | /* Check minimum size -- gzip header */ |
| 170 | if (ret < 10) { |
| 171 | DBG_FLT("binfmt_flat: file too small?\n"); |
| 172 | goto out_free_buf; |
| 173 | } |
| 174 | |
| 175 | /* Check gzip magic number */ |
| 176 | if ((buf[0] != 037) || ((buf[1] != 0213) && (buf[1] != 0236))) { |
| 177 | DBG_FLT("binfmt_flat: unknown compression magic?\n"); |
| 178 | goto out_free_buf; |
| 179 | } |
| 180 | |
| 181 | /* Check gzip method */ |
| 182 | if (buf[2] != 8) { |
| 183 | DBG_FLT("binfmt_flat: unknown compression method?\n"); |
| 184 | goto out_free_buf; |
| 185 | } |
| 186 | /* Check gzip flags */ |
| 187 | if ((buf[3] & ENCRYPTED) || (buf[3] & CONTINUATION) || |
| 188 | (buf[3] & RESERVED)) { |
| 189 | DBG_FLT("binfmt_flat: unknown flags?\n"); |
| 190 | goto out_free_buf; |
| 191 | } |
| 192 | |
| 193 | ret = 10; |
| 194 | if (buf[3] & EXTRA_FIELD) { |
| 195 | ret += 2 + buf[10] + (buf[11] << 8); |
| 196 | if (unlikely(LBUFSIZE == ret)) { |
| 197 | DBG_FLT("binfmt_flat: buffer overflow (EXTRA)?\n"); |
| 198 | goto out_free_buf; |
| 199 | } |
| 200 | } |
| 201 | if (buf[3] & ORIG_NAME) { |
| 202 | for (; ret < LBUFSIZE && (buf[ret] != 0); ret++) |
| 203 | ; |
| 204 | if (unlikely(LBUFSIZE == ret)) { |
| 205 | DBG_FLT("binfmt_flat: buffer overflow (ORIG_NAME)?\n"); |
| 206 | goto out_free_buf; |
| 207 | } |
| 208 | } |
| 209 | if (buf[3] & COMMENT) { |
| 210 | for (; ret < LBUFSIZE && (buf[ret] != 0); ret++) |
| 211 | ; |
| 212 | if (unlikely(LBUFSIZE == ret)) { |
| 213 | DBG_FLT("binfmt_flat: buffer overflow (COMMENT)?\n"); |
| 214 | goto out_free_buf; |
| 215 | } |
| 216 | } |
| 217 | |
| 218 | strm.next_in += ret; |
| 219 | strm.avail_in -= ret; |
| 220 | |
| 221 | strm.next_out = dst; |
| 222 | strm.avail_out = len; |
| 223 | strm.total_out = 0; |
| 224 | |
| 225 | if (zlib_inflateInit2(&strm, -MAX_WBITS) != Z_OK) { |
| 226 | DBG_FLT("binfmt_flat: zlib init failed?\n"); |
| 227 | goto out_free_buf; |
| 228 | } |
| 229 | |
| 230 | while ((ret = zlib_inflate(&strm, Z_NO_FLUSH)) == Z_OK) { |
| 231 | ret = bprm->file->f_op->read(bprm->file, buf, LBUFSIZE, &fpos); |
| 232 | if (ret <= 0) |
| 233 | break; |
| 234 | if (ret >= (unsigned long) -4096) |
| 235 | break; |
| 236 | len -= ret; |
| 237 | |
| 238 | strm.next_in = buf; |
| 239 | strm.avail_in = ret; |
| 240 | strm.total_in = 0; |
| 241 | } |
| 242 | |
| 243 | if (ret < 0) { |
| 244 | DBG_FLT("binfmt_flat: decompression failed (%d), %s\n", |
| 245 | ret, strm.msg); |
| 246 | goto out_zlib; |
| 247 | } |
| 248 | |
| 249 | retval = 0; |
| 250 | out_zlib: |
| 251 | zlib_inflateEnd(&strm); |
| 252 | out_free_buf: |
| 253 | kfree(buf); |
| 254 | out_free: |
| 255 | kfree(strm.workspace); |
| 256 | out: |
| 257 | return retval; |
| 258 | } |
| 259 | |
| 260 | #endif /* CONFIG_BINFMT_ZFLAT */ |
| 261 | |
| 262 | /****************************************************************************/ |
| 263 | |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 264 | static abi_ulong |
| 265 | calc_reloc(abi_ulong r, struct lib_info *p, int curid, int internalp) |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 266 | { |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 267 | abi_ulong addr; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 268 | int id; |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 269 | abi_ulong start_brk; |
| 270 | abi_ulong start_data; |
| 271 | abi_ulong text_len; |
| 272 | abi_ulong start_code; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 273 | |
| 274 | #ifdef CONFIG_BINFMT_SHARED_FLAT |
| 275 | #error needs checking |
| 276 | if (r == 0) |
| 277 | id = curid; /* Relocs of 0 are always self referring */ |
| 278 | else { |
| 279 | id = (r >> 24) & 0xff; /* Find ID for this reloc */ |
| 280 | r &= 0x00ffffff; /* Trim ID off here */ |
| 281 | } |
| 282 | if (id >= MAX_SHARED_LIBS) { |
| 283 | fprintf(stderr, "BINFMT_FLAT: reference 0x%x to shared library %d\n", |
| 284 | (unsigned) r, id); |
| 285 | goto failed; |
| 286 | } |
| 287 | if (curid != id) { |
| 288 | if (internalp) { |
| 289 | fprintf(stderr, "BINFMT_FLAT: reloc address 0x%x not " |
| 290 | "in same module (%d != %d)\n", |
| 291 | (unsigned) r, curid, id); |
| 292 | goto failed; |
| 293 | } else if ( ! p[id].loaded && |
| 294 | load_flat_shared_library(id, p) > (unsigned long) -4096) { |
| 295 | fprintf(stderr, "BINFMT_FLAT: failed to load library %d\n", id); |
| 296 | goto failed; |
| 297 | } |
| 298 | /* Check versioning information (i.e. time stamps) */ |
| 299 | if (p[id].build_date && p[curid].build_date |
| 300 | && p[curid].build_date < p[id].build_date) { |
| 301 | fprintf(stderr, "BINFMT_FLAT: library %d is younger than %d\n", |
| 302 | id, curid); |
| 303 | goto failed; |
| 304 | } |
| 305 | } |
| 306 | #else |
| 307 | id = 0; |
| 308 | #endif |
| 309 | |
| 310 | start_brk = p[id].start_brk; |
| 311 | start_data = p[id].start_data; |
| 312 | start_code = p[id].start_code; |
| 313 | text_len = p[id].text_len; |
| 314 | |
| 315 | if (!flat_reloc_valid(r, start_brk - start_data + text_len)) { |
| 316 | fprintf(stderr, "BINFMT_FLAT: reloc outside program 0x%x " |
| 317 | "(0 - 0x%x/0x%x)\n", |
| 318 | (int) r,(int)(start_brk-start_code),(int)text_len); |
| 319 | goto failed; |
| 320 | } |
| 321 | |
| 322 | if (r < text_len) /* In text segment */ |
| 323 | addr = r + start_code; |
| 324 | else /* In data segment */ |
| 325 | addr = r - text_len + start_data; |
| 326 | |
| 327 | /* Range checked already above so doing the range tests is redundant...*/ |
| 328 | return(addr); |
| 329 | |
| 330 | failed: |
| 331 | abort(); |
| 332 | return RELOC_FAILED; |
| 333 | } |
| 334 | |
| 335 | /****************************************************************************/ |
| 336 | |
| 337 | /* ??? This does not handle endianness correctly. */ |
blueswir1 | b1d8e52 | 2008-10-26 13:43:07 +0000 | [diff] [blame] | 338 | static void old_reloc(struct lib_info *libinfo, uint32_t rl) |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 339 | { |
| 340 | #ifdef DEBUG |
Riccardo Magliocchetti | 564e2fe | 2010-05-19 21:49:21 +0200 | [diff] [blame] | 341 | const char *segment[] = { "TEXT", "DATA", "BSS", "*UNKNOWN*" }; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 342 | #endif |
| 343 | uint32_t *ptr; |
| 344 | uint32_t offset; |
| 345 | int reloc_type; |
| 346 | |
| 347 | offset = rl & 0x3fffffff; |
| 348 | reloc_type = rl >> 30; |
| 349 | /* ??? How to handle this? */ |
| 350 | #if defined(CONFIG_COLDFIRE) |
balrog | 526ccb7 | 2008-07-16 12:13:52 +0000 | [diff] [blame] | 351 | ptr = (uint32_t *) ((unsigned long) libinfo->start_code + offset); |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 352 | #else |
balrog | 526ccb7 | 2008-07-16 12:13:52 +0000 | [diff] [blame] | 353 | ptr = (uint32_t *) ((unsigned long) libinfo->start_data + offset); |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 354 | #endif |
| 355 | |
| 356 | #ifdef DEBUG |
| 357 | fprintf(stderr, "Relocation of variable at DATASEG+%x " |
| 358 | "(address %p, currently %x) into segment %s\n", |
| 359 | offset, ptr, (int)*ptr, segment[reloc_type]); |
| 360 | #endif |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 361 | |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 362 | switch (reloc_type) { |
| 363 | case OLD_FLAT_RELOC_TYPE_TEXT: |
| 364 | *ptr += libinfo->start_code; |
| 365 | break; |
| 366 | case OLD_FLAT_RELOC_TYPE_DATA: |
| 367 | *ptr += libinfo->start_data; |
| 368 | break; |
| 369 | case OLD_FLAT_RELOC_TYPE_BSS: |
| 370 | *ptr += libinfo->end_data; |
| 371 | break; |
| 372 | default: |
| 373 | fprintf(stderr, "BINFMT_FLAT: Unknown relocation type=%x\n", |
| 374 | reloc_type); |
| 375 | break; |
| 376 | } |
| 377 | DBG_FLT("Relocation became %x\n", (int)*ptr); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 378 | } |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 379 | |
| 380 | /****************************************************************************/ |
| 381 | |
| 382 | static int load_flat_file(struct linux_binprm * bprm, |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 383 | struct lib_info *libinfo, int id, abi_ulong *extra_stack) |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 384 | { |
| 385 | struct flat_hdr * hdr; |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 386 | abi_ulong textpos = 0, datapos = 0, result; |
| 387 | abi_ulong realdatastart = 0; |
| 388 | abi_ulong text_len, data_len, bss_len, stack_len, flags; |
| 389 | abi_ulong memp = 0; /* for finding the brk area */ |
| 390 | abi_ulong extra; |
| 391 | abi_ulong reloc = 0, rp; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 392 | int i, rev, relocs = 0; |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 393 | abi_ulong fpos; |
| 394 | abi_ulong start_code, end_code; |
| 395 | abi_ulong indx_len; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 396 | |
| 397 | hdr = ((struct flat_hdr *) bprm->buf); /* exec-header */ |
| 398 | |
| 399 | text_len = ntohl(hdr->data_start); |
| 400 | data_len = ntohl(hdr->data_end) - ntohl(hdr->data_start); |
| 401 | bss_len = ntohl(hdr->bss_end) - ntohl(hdr->data_end); |
| 402 | stack_len = ntohl(hdr->stack_size); |
| 403 | if (extra_stack) { |
| 404 | stack_len += *extra_stack; |
| 405 | *extra_stack = stack_len; |
| 406 | } |
| 407 | relocs = ntohl(hdr->reloc_count); |
| 408 | flags = ntohl(hdr->flags); |
| 409 | rev = ntohl(hdr->rev); |
| 410 | |
| 411 | DBG_FLT("BINFMT_FLAT: Loading file: %s\n", bprm->filename); |
| 412 | |
| 413 | if (rev != FLAT_VERSION && rev != OLD_FLAT_VERSION) { |
| 414 | fprintf(stderr, "BINFMT_FLAT: bad magic/rev (0x%x, need 0x%x)\n", |
| 415 | rev, (int) FLAT_VERSION); |
| 416 | return -ENOEXEC; |
| 417 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 418 | |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 419 | /* Don't allow old format executables to use shared libraries */ |
| 420 | if (rev == OLD_FLAT_VERSION && id != 0) { |
| 421 | fprintf(stderr, "BINFMT_FLAT: shared libraries are not available\n"); |
| 422 | return -ENOEXEC; |
| 423 | } |
| 424 | |
| 425 | /* |
| 426 | * fix up the flags for the older format, there were all kinds |
| 427 | * of endian hacks, this only works for the simple cases |
| 428 | */ |
| 429 | if (rev == OLD_FLAT_VERSION && flat_old_ram_flag(flags)) |
| 430 | flags = FLAT_FLAG_RAM; |
| 431 | |
| 432 | #ifndef CONFIG_BINFMT_ZFLAT |
| 433 | if (flags & (FLAT_FLAG_GZIP|FLAT_FLAG_GZDATA)) { |
| 434 | fprintf(stderr, "Support for ZFLAT executables is not enabled\n"); |
| 435 | return -ENOEXEC; |
| 436 | } |
| 437 | #endif |
| 438 | |
| 439 | /* |
| 440 | * calculate the extra space we need to map in |
| 441 | */ |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 442 | extra = relocs * sizeof(abi_ulong); |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 443 | if (extra < bss_len + stack_len) |
| 444 | extra = bss_len + stack_len; |
| 445 | |
pbrook | 2a1094c | 2007-04-15 14:13:11 +0000 | [diff] [blame] | 446 | /* Add space for library base pointers. Make sure this does not |
| 447 | misalign the doesn't misalign the data segment. */ |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 448 | indx_len = MAX_SHARED_LIBS * sizeof(abi_ulong); |
| 449 | indx_len = (indx_len + 15) & ~(abi_ulong)15; |
pbrook | 2a1094c | 2007-04-15 14:13:11 +0000 | [diff] [blame] | 450 | |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 451 | /* |
| 452 | * there are a couple of cases here, the separate code/data |
| 453 | * case, and then the fully copied to RAM case which lumps |
| 454 | * it all together. |
| 455 | */ |
| 456 | if ((flags & (FLAT_FLAG_RAM|FLAT_FLAG_GZIP)) == 0) { |
| 457 | /* |
| 458 | * this should give us a ROM ptr, but if it doesn't we don't |
| 459 | * really care |
| 460 | */ |
| 461 | DBG_FLT("BINFMT_FLAT: ROM mapping of file (we hope)\n"); |
| 462 | |
| 463 | textpos = target_mmap(0, text_len, PROT_READ|PROT_EXEC, |
| 464 | MAP_PRIVATE, bprm->fd, 0); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 465 | if (textpos == -1) { |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 466 | fprintf(stderr, "Unable to mmap process text\n"); |
| 467 | return -1; |
| 468 | } |
| 469 | |
pbrook | 2a1094c | 2007-04-15 14:13:11 +0000 | [diff] [blame] | 470 | realdatastart = target_mmap(0, data_len + extra + indx_len, |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 471 | PROT_READ|PROT_WRITE|PROT_EXEC, |
| 472 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
| 473 | |
| 474 | if (realdatastart == -1) { |
| 475 | fprintf(stderr, "Unable to allocate RAM for process data\n"); |
| 476 | return realdatastart; |
| 477 | } |
pbrook | 2a1094c | 2007-04-15 14:13:11 +0000 | [diff] [blame] | 478 | datapos = realdatastart + indx_len; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 479 | |
| 480 | DBG_FLT("BINFMT_FLAT: Allocated data+bss+stack (%d bytes): %x\n", |
| 481 | (int)(data_len + bss_len + stack_len), (int)datapos); |
| 482 | |
| 483 | fpos = ntohl(hdr->data_start); |
| 484 | #ifdef CONFIG_BINFMT_ZFLAT |
| 485 | if (flags & FLAT_FLAG_GZDATA) { |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 486 | result = decompress_exec(bprm, fpos, (char *) datapos, |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 487 | data_len + (relocs * sizeof(abi_ulong))) |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 488 | } else |
| 489 | #endif |
| 490 | { |
| 491 | result = target_pread(bprm->fd, datapos, |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 492 | data_len + (relocs * sizeof(abi_ulong)), |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 493 | fpos); |
| 494 | } |
| 495 | if (result < 0) { |
| 496 | fprintf(stderr, "Unable to read data+bss\n"); |
| 497 | return result; |
| 498 | } |
| 499 | |
| 500 | reloc = datapos + (ntohl(hdr->reloc_start) - text_len); |
| 501 | memp = realdatastart; |
| 502 | |
| 503 | } else { |
| 504 | |
pbrook | 2a1094c | 2007-04-15 14:13:11 +0000 | [diff] [blame] | 505 | textpos = target_mmap(0, text_len + data_len + extra + indx_len, |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 506 | PROT_READ | PROT_EXEC | PROT_WRITE, |
| 507 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
| 508 | if (textpos == -1 ) { |
| 509 | fprintf(stderr, "Unable to allocate RAM for process text/data\n"); |
| 510 | return -1; |
| 511 | } |
| 512 | |
| 513 | realdatastart = textpos + ntohl(hdr->data_start); |
pbrook | 2a1094c | 2007-04-15 14:13:11 +0000 | [diff] [blame] | 514 | datapos = realdatastart + indx_len; |
| 515 | reloc = (textpos + ntohl(hdr->reloc_start) + indx_len); |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 516 | memp = textpos; |
| 517 | |
| 518 | #ifdef CONFIG_BINFMT_ZFLAT |
| 519 | #error code needs checking |
| 520 | /* |
| 521 | * load it all in and treat it like a RAM load from now on |
| 522 | */ |
| 523 | if (flags & FLAT_FLAG_GZIP) { |
| 524 | result = decompress_exec(bprm, sizeof (struct flat_hdr), |
| 525 | (((char *) textpos) + sizeof (struct flat_hdr)), |
| 526 | (text_len + data_len + (relocs * sizeof(unsigned long)) |
| 527 | - sizeof (struct flat_hdr)), |
| 528 | 0); |
| 529 | memmove((void *) datapos, (void *) realdatastart, |
| 530 | data_len + (relocs * sizeof(unsigned long))); |
| 531 | } else if (flags & FLAT_FLAG_GZDATA) { |
| 532 | fpos = 0; |
| 533 | result = bprm->file->f_op->read(bprm->file, |
| 534 | (char *) textpos, text_len, &fpos); |
| 535 | if (result < (unsigned long) -4096) |
| 536 | result = decompress_exec(bprm, text_len, (char *) datapos, |
| 537 | data_len + (relocs * sizeof(unsigned long)), 0); |
| 538 | } |
| 539 | else |
| 540 | #endif |
| 541 | { |
| 542 | result = target_pread(bprm->fd, textpos, |
| 543 | text_len, 0); |
| 544 | if (result >= 0) { |
| 545 | result = target_pread(bprm->fd, datapos, |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 546 | data_len + (relocs * sizeof(abi_ulong)), |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 547 | ntohl(hdr->data_start)); |
| 548 | } |
| 549 | } |
| 550 | if (result < 0) { |
| 551 | fprintf(stderr, "Unable to read code+data+bss\n"); |
| 552 | return result; |
| 553 | } |
| 554 | } |
| 555 | |
| 556 | DBG_FLT("Mapping is 0x%x, Entry point is 0x%x, data_start is 0x%x\n", |
| 557 | (int)textpos, 0x00ffffff&ntohl(hdr->entry), |
| 558 | ntohl(hdr->data_start)); |
| 559 | |
| 560 | /* The main program needs a little extra setup in the task structure */ |
| 561 | start_code = textpos + sizeof (struct flat_hdr); |
| 562 | end_code = textpos + text_len; |
| 563 | |
| 564 | DBG_FLT("%s %s: TEXT=%x-%x DATA=%x-%x BSS=%x-%x\n", |
| 565 | id ? "Lib" : "Load", bprm->filename, |
| 566 | (int) start_code, (int) end_code, |
| 567 | (int) datapos, |
| 568 | (int) (datapos + data_len), |
| 569 | (int) (datapos + data_len), |
| 570 | (int) (((datapos + data_len + bss_len) + 3) & ~3)); |
| 571 | |
| 572 | text_len -= sizeof(struct flat_hdr); /* the real code len */ |
| 573 | |
| 574 | /* Store the current module values into the global library structure */ |
| 575 | libinfo[id].start_code = start_code; |
| 576 | libinfo[id].start_data = datapos; |
| 577 | libinfo[id].end_data = datapos + data_len; |
| 578 | libinfo[id].start_brk = datapos + data_len + bss_len; |
| 579 | libinfo[id].text_len = text_len; |
| 580 | libinfo[id].loaded = 1; |
| 581 | libinfo[id].entry = (0x00ffffff & ntohl(hdr->entry)) + textpos; |
| 582 | libinfo[id].build_date = ntohl(hdr->build_date); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 583 | |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 584 | /* |
| 585 | * We just load the allocations into some temporary memory to |
| 586 | * help simplify all this mumbo jumbo |
| 587 | * |
| 588 | * We've got two different sections of relocation entries. |
| 589 | * The first is the GOT which resides at the begining of the data segment |
| 590 | * and is terminated with a -1. This one can be relocated in place. |
| 591 | * The second is the extra relocation entries tacked after the image's |
| 592 | * data segment. These require a little more processing as the entry is |
| 593 | * really an offset into the image which contains an offset into the |
| 594 | * image. |
| 595 | */ |
| 596 | if (flags & FLAT_FLAG_GOTPIC) { |
| 597 | rp = datapos; |
| 598 | while (1) { |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 599 | abi_ulong addr; |
bellard | 2f61969 | 2007-11-16 10:46:05 +0000 | [diff] [blame] | 600 | if (get_user_ual(addr, rp)) |
| 601 | return -EFAULT; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 602 | if (addr == -1) |
| 603 | break; |
| 604 | if (addr) { |
| 605 | addr = calc_reloc(addr, libinfo, id, 0); |
| 606 | if (addr == RELOC_FAILED) |
| 607 | return -ENOEXEC; |
bellard | 2f61969 | 2007-11-16 10:46:05 +0000 | [diff] [blame] | 608 | if (put_user_ual(addr, rp)) |
| 609 | return -EFAULT; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 610 | } |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 611 | rp += sizeof(abi_ulong); |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 612 | } |
| 613 | } |
| 614 | |
| 615 | /* |
| 616 | * Now run through the relocation entries. |
| 617 | * We've got to be careful here as C++ produces relocatable zero |
| 618 | * entries in the constructor and destructor tables which are then |
| 619 | * tested for being not zero (which will always occur unless we're |
| 620 | * based from address zero). This causes an endless loop as __start |
| 621 | * is at zero. The solution used is to not relocate zero addresses. |
| 622 | * This has the negative side effect of not allowing a global data |
| 623 | * reference to be statically initialised to _stext (I've moved |
| 624 | * __start to address 4 so that is okay). |
| 625 | */ |
| 626 | if (rev > OLD_FLAT_VERSION) { |
| 627 | for (i = 0; i < relocs; i++) { |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 628 | abi_ulong addr, relval; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 629 | |
| 630 | /* Get the address of the pointer to be |
| 631 | relocated (of course, the address has to be |
| 632 | relocated first). */ |
bellard | 2f61969 | 2007-11-16 10:46:05 +0000 | [diff] [blame] | 633 | if (get_user_ual(relval, reloc + i * sizeof(abi_ulong))) |
| 634 | return -EFAULT; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 635 | addr = flat_get_relocate_addr(relval); |
| 636 | rp = calc_reloc(addr, libinfo, id, 1); |
| 637 | if (rp == RELOC_FAILED) |
| 638 | return -ENOEXEC; |
| 639 | |
| 640 | /* Get the pointer's value. */ |
bellard | 2f61969 | 2007-11-16 10:46:05 +0000 | [diff] [blame] | 641 | if (get_user_ual(addr, rp)) |
| 642 | return -EFAULT; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 643 | if (addr != 0) { |
| 644 | /* |
| 645 | * Do the relocation. PIC relocs in the data section are |
| 646 | * already in target order |
| 647 | */ |
| 648 | |
| 649 | #ifndef TARGET_WORDS_BIGENDIAN |
| 650 | if ((flags & FLAT_FLAG_GOTPIC) == 0) |
| 651 | addr = bswap32(addr); |
| 652 | #endif |
| 653 | addr = calc_reloc(addr, libinfo, id, 0); |
| 654 | if (addr == RELOC_FAILED) |
| 655 | return -ENOEXEC; |
| 656 | |
| 657 | /* Write back the relocated pointer. */ |
bellard | 2f61969 | 2007-11-16 10:46:05 +0000 | [diff] [blame] | 658 | if (put_user_ual(addr, rp)) |
| 659 | return -EFAULT; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 660 | } |
| 661 | } |
| 662 | } else { |
| 663 | for (i = 0; i < relocs; i++) { |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 664 | abi_ulong relval; |
bellard | 2f61969 | 2007-11-16 10:46:05 +0000 | [diff] [blame] | 665 | if (get_user_ual(relval, reloc + i * sizeof(abi_ulong))) |
| 666 | return -EFAULT; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 667 | old_reloc(&libinfo[0], relval); |
| 668 | } |
| 669 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 670 | |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 671 | /* zero the BSS. */ |
balrog | 526ccb7 | 2008-07-16 12:13:52 +0000 | [diff] [blame] | 672 | memset((void *)((unsigned long)datapos + data_len), 0, bss_len); |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 673 | |
| 674 | return 0; |
| 675 | } |
| 676 | |
| 677 | |
| 678 | /****************************************************************************/ |
| 679 | #ifdef CONFIG_BINFMT_SHARED_FLAT |
| 680 | |
| 681 | /* |
| 682 | * Load a shared library into memory. The library gets its own data |
| 683 | * segment (including bss) but not argv/argc/environ. |
| 684 | */ |
| 685 | |
| 686 | static int load_flat_shared_library(int id, struct lib_info *libs) |
| 687 | { |
| 688 | struct linux_binprm bprm; |
| 689 | int res; |
| 690 | char buf[16]; |
| 691 | |
| 692 | /* Create the file name */ |
| 693 | sprintf(buf, "/lib/lib%d.so", id); |
| 694 | |
| 695 | /* Open the file up */ |
| 696 | bprm.filename = buf; |
| 697 | bprm.file = open_exec(bprm.filename); |
| 698 | res = PTR_ERR(bprm.file); |
| 699 | if (IS_ERR(bprm.file)) |
| 700 | return res; |
| 701 | |
| 702 | res = prepare_binprm(&bprm); |
| 703 | |
| 704 | if (res <= (unsigned long)-4096) |
| 705 | res = load_flat_file(&bprm, libs, id, NULL); |
| 706 | if (bprm.file) { |
| 707 | allow_write_access(bprm.file); |
| 708 | fput(bprm.file); |
| 709 | bprm.file = NULL; |
| 710 | } |
| 711 | return(res); |
| 712 | } |
| 713 | |
| 714 | #endif /* CONFIG_BINFMT_SHARED_FLAT */ |
| 715 | |
| 716 | int load_flt_binary(struct linux_binprm * bprm, struct target_pt_regs * regs, |
| 717 | struct image_info * info) |
| 718 | { |
| 719 | struct lib_info libinfo[MAX_SHARED_LIBS]; |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 720 | abi_ulong p = bprm->p; |
| 721 | abi_ulong stack_len; |
| 722 | abi_ulong start_addr; |
| 723 | abi_ulong sp; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 724 | int res; |
| 725 | int i, j; |
| 726 | |
| 727 | memset(libinfo, 0, sizeof(libinfo)); |
| 728 | /* |
| 729 | * We have to add the size of our arguments to our stack size |
| 730 | * otherwise it's too easy for users to create stack overflows |
| 731 | * by passing in a huge argument list. And yes, we have to be |
| 732 | * pedantic and include space for the argv/envp array as it may have |
| 733 | * a lot of entries. |
| 734 | */ |
| 735 | #define TOP_OF_ARGS (TARGET_PAGE_SIZE * MAX_ARG_PAGES - sizeof(void *)) |
| 736 | stack_len = TOP_OF_ARGS - bprm->p; /* the strings */ |
| 737 | stack_len += (bprm->argc + 1) * 4; /* the argv array */ |
| 738 | stack_len += (bprm->envc + 1) * 4; /* the envp array */ |
| 739 | |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 740 | |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 741 | res = load_flat_file(bprm, libinfo, 0, &stack_len); |
| 742 | if (res > (unsigned long)-4096) |
| 743 | return res; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 744 | |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 745 | /* Update data segment pointers for all libraries */ |
| 746 | for (i=0; i<MAX_SHARED_LIBS; i++) { |
| 747 | if (libinfo[i].loaded) { |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 748 | abi_ulong p; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 749 | p = libinfo[i].start_data; |
| 750 | for (j=0; j<MAX_SHARED_LIBS; j++) { |
| 751 | p -= 4; |
bellard | 2f61969 | 2007-11-16 10:46:05 +0000 | [diff] [blame] | 752 | /* FIXME - handle put_user() failures */ |
| 753 | if (put_user_ual(libinfo[j].loaded |
| 754 | ? libinfo[j].start_data |
| 755 | : UNLOADED_LIB, |
| 756 | p)) |
| 757 | return -EFAULT; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 758 | } |
| 759 | } |
| 760 | } |
| 761 | |
| 762 | p = ((libinfo[0].start_brk + stack_len + 3) & ~3) - 4; |
| 763 | DBG_FLT("p=%x\n", (int)p); |
| 764 | |
| 765 | /* Copy argv/envp. */ |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 766 | p = copy_strings(p, bprm->envc, bprm->envp); |
pbrook | 388c450 | 2006-12-26 18:27:07 +0000 | [diff] [blame] | 767 | p = copy_strings(p, bprm->argc, bprm->argv); |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 768 | /* Align stack. */ |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 769 | sp = p & ~(abi_ulong)(sizeof(abi_ulong) - 1); |
pbrook | b35d744 | 2007-03-15 21:56:07 +0000 | [diff] [blame] | 770 | /* Enforce final stack alignment of 16 bytes. This is sufficient |
| 771 | for all current targets, and excess alignment is harmless. */ |
| 772 | stack_len = bprm->envc + bprm->argc + 2; |
| 773 | stack_len += 3; /* argc, arvg, argp */ |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 774 | stack_len *= sizeof(abi_ulong); |
pbrook | b35d744 | 2007-03-15 21:56:07 +0000 | [diff] [blame] | 775 | if ((sp + stack_len) & 15) |
| 776 | sp -= 16 - ((sp + stack_len) & 15); |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 777 | sp = loader_build_argptr(bprm->envc, bprm->argc, sp, p, 1); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 778 | |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 779 | /* Fake some return addresses to ensure the call chain will |
| 780 | * initialise library in order for us. We are required to call |
| 781 | * lib 1 first, then 2, ... and finally the main program (id 0). |
| 782 | */ |
| 783 | start_addr = libinfo[0].entry; |
| 784 | |
| 785 | #ifdef CONFIG_BINFMT_SHARED_FLAT |
| 786 | #error here |
| 787 | for (i = MAX_SHARED_LIBS-1; i>0; i--) { |
| 788 | if (libinfo[i].loaded) { |
| 789 | /* Push previos first to call address */ |
bellard | 2f61969 | 2007-11-16 10:46:05 +0000 | [diff] [blame] | 790 | --sp; |
| 791 | if (put_user_ual(start_addr, sp)) |
| 792 | return -EFAULT; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 793 | start_addr = libinfo[i].entry; |
| 794 | } |
| 795 | } |
| 796 | #endif |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 797 | |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 798 | /* Stash our initial stack pointer into the mm structure */ |
| 799 | info->start_code = libinfo[0].start_code; |
| 800 | info->end_code = libinfo[0].start_code = libinfo[0].text_len; |
| 801 | info->start_data = libinfo[0].start_data; |
| 802 | info->end_data = libinfo[0].end_data; |
| 803 | info->start_brk = libinfo[0].start_brk; |
| 804 | info->start_stack = sp; |
Paul Brook | 97374d3 | 2010-06-16 13:03:51 +0100 | [diff] [blame] | 805 | info->stack_limit = libinfo[0].start_brk; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 806 | info->entry = start_addr; |
pbrook | 978efd6 | 2006-06-17 18:30:42 +0000 | [diff] [blame] | 807 | info->code_offset = info->start_code; |
| 808 | info->data_offset = info->start_data - libinfo[0].text_len; |
| 809 | |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 810 | DBG_FLT("start_thread(entry=0x%x, start_stack=0x%x)\n", |
| 811 | (int)info->entry, (int)info->start_stack); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 812 | |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 813 | return 0; |
| 814 | } |