blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 1 | /* |
| 2 | * BSD syscalls |
| 3 | * |
| 4 | * Copyright (c) 2003 - 2008 Fabrice Bellard |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program 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 |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
Blue Swirl | 8167ee8 | 2009-07-16 20:47:01 +0000 | [diff] [blame] | 17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 18 | */ |
| 19 | #include <stdlib.h> |
| 20 | #include <stdio.h> |
| 21 | #include <stdint.h> |
| 22 | #include <stdarg.h> |
| 23 | #include <string.h> |
| 24 | #include <errno.h> |
| 25 | #include <unistd.h> |
| 26 | #include <fcntl.h> |
| 27 | #include <time.h> |
| 28 | #include <limits.h> |
| 29 | #include <sys/types.h> |
| 30 | #include <sys/mman.h> |
| 31 | #include <sys/syscall.h> |
Blue Swirl | 544f4f0 | 2009-10-18 18:44:38 +0000 | [diff] [blame] | 32 | #include <sys/param.h> |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 33 | #include <sys/sysctl.h> |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 34 | #include <utime.h> |
| 35 | |
| 36 | #include "qemu.h" |
| 37 | #include "qemu-common.h" |
| 38 | |
| 39 | //#define DEBUG |
| 40 | |
| 41 | static abi_ulong target_brk; |
| 42 | static abi_ulong target_original_brk; |
| 43 | |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 44 | static inline abi_long get_errno(abi_long ret) |
| 45 | { |
| 46 | if (ret == -1) |
| 47 | /* XXX need to translate host -> target errnos here */ |
| 48 | return -(errno); |
| 49 | else |
| 50 | return ret; |
| 51 | } |
| 52 | |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 53 | #define target_to_host_bitmask(x, tbl) (x) |
| 54 | |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 55 | static inline int is_error(abi_long ret) |
| 56 | { |
| 57 | return (abi_ulong)ret >= (abi_ulong)(-4096); |
| 58 | } |
| 59 | |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 60 | void target_set_brk(abi_ulong new_brk) |
| 61 | { |
| 62 | target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk); |
| 63 | } |
| 64 | |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 65 | /* do_obreak() must return target errnos. */ |
| 66 | static abi_long do_obreak(abi_ulong new_brk) |
| 67 | { |
| 68 | abi_ulong brk_page; |
| 69 | abi_long mapped_addr; |
| 70 | int new_alloc_size; |
| 71 | |
| 72 | if (!new_brk) |
| 73 | return 0; |
| 74 | if (new_brk < target_original_brk) |
| 75 | return -TARGET_EINVAL; |
| 76 | |
| 77 | brk_page = HOST_PAGE_ALIGN(target_brk); |
| 78 | |
| 79 | /* If the new brk is less than this, set it and we're done... */ |
| 80 | if (new_brk < brk_page) { |
| 81 | target_brk = new_brk; |
| 82 | return 0; |
| 83 | } |
| 84 | |
| 85 | /* We need to allocate more memory after the brk... */ |
| 86 | new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); |
| 87 | mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, |
| 88 | PROT_READ|PROT_WRITE, |
| 89 | MAP_ANON|MAP_FIXED|MAP_PRIVATE, -1, 0)); |
| 90 | |
| 91 | if (!is_error(mapped_addr)) |
| 92 | target_brk = new_brk; |
| 93 | else |
| 94 | return mapped_addr; |
| 95 | |
| 96 | return 0; |
| 97 | } |
| 98 | |
| 99 | #if defined(TARGET_I386) |
| 100 | static abi_long do_freebsd_sysarch(CPUX86State *env, int op, abi_ulong parms) |
| 101 | { |
| 102 | abi_long ret = 0; |
| 103 | abi_ulong val; |
| 104 | int idx; |
| 105 | |
| 106 | switch(op) { |
| 107 | #ifdef TARGET_ABI32 |
| 108 | case TARGET_FREEBSD_I386_SET_GSBASE: |
| 109 | case TARGET_FREEBSD_I386_SET_FSBASE: |
| 110 | if (op == TARGET_FREEBSD_I386_SET_GSBASE) |
| 111 | #else |
| 112 | case TARGET_FREEBSD_AMD64_SET_GSBASE: |
| 113 | case TARGET_FREEBSD_AMD64_SET_FSBASE: |
| 114 | if (op == TARGET_FREEBSD_AMD64_SET_GSBASE) |
| 115 | #endif |
| 116 | idx = R_GS; |
| 117 | else |
| 118 | idx = R_FS; |
| 119 | if (get_user(val, parms, abi_ulong)) |
| 120 | return -TARGET_EFAULT; |
| 121 | cpu_x86_load_seg(env, idx, 0); |
| 122 | env->segs[idx].base = val; |
| 123 | break; |
| 124 | #ifdef TARGET_ABI32 |
| 125 | case TARGET_FREEBSD_I386_GET_GSBASE: |
| 126 | case TARGET_FREEBSD_I386_GET_FSBASE: |
| 127 | if (op == TARGET_FREEBSD_I386_GET_GSBASE) |
| 128 | #else |
| 129 | case TARGET_FREEBSD_AMD64_GET_GSBASE: |
| 130 | case TARGET_FREEBSD_AMD64_GET_FSBASE: |
| 131 | if (op == TARGET_FREEBSD_AMD64_GET_GSBASE) |
| 132 | #endif |
| 133 | idx = R_GS; |
| 134 | else |
| 135 | idx = R_FS; |
| 136 | val = env->segs[idx].base; |
| 137 | if (put_user(val, parms, abi_ulong)) |
| 138 | return -TARGET_EFAULT; |
| 139 | break; |
| 140 | /* XXX handle the others... */ |
| 141 | default: |
| 142 | ret = -TARGET_EINVAL; |
| 143 | break; |
| 144 | } |
| 145 | return ret; |
| 146 | } |
| 147 | #endif |
| 148 | |
| 149 | #ifdef TARGET_SPARC |
| 150 | static abi_long do_freebsd_sysarch(void *env, int op, abi_ulong parms) |
| 151 | { |
| 152 | /* XXX handle |
| 153 | * TARGET_FREEBSD_SPARC_UTRAP_INSTALL, |
| 154 | * TARGET_FREEBSD_SPARC_SIGTRAMP_INSTALL |
| 155 | */ |
| 156 | return -TARGET_EINVAL; |
| 157 | } |
| 158 | #endif |
| 159 | |
| 160 | #ifdef __FreeBSD__ |
| 161 | /* |
| 162 | * XXX this uses the undocumented oidfmt interface to find the kind of |
| 163 | * a requested sysctl, see /sys/kern/kern_sysctl.c:sysctl_sysctl_oidfmt() |
| 164 | * (this is mostly copied from src/sbin/sysctl/sysctl.c) |
| 165 | */ |
| 166 | static int |
| 167 | oidfmt(int *oid, int len, char *fmt, uint32_t *kind) |
| 168 | { |
| 169 | int qoid[CTL_MAXNAME+2]; |
| 170 | uint8_t buf[BUFSIZ]; |
| 171 | int i; |
| 172 | size_t j; |
| 173 | |
| 174 | qoid[0] = 0; |
| 175 | qoid[1] = 4; |
| 176 | memcpy(qoid + 2, oid, len * sizeof(int)); |
| 177 | |
| 178 | j = sizeof(buf); |
| 179 | i = sysctl(qoid, len + 2, buf, &j, 0, 0); |
| 180 | if (i) |
| 181 | return i; |
| 182 | |
| 183 | if (kind) |
| 184 | *kind = *(uint32_t *)buf; |
| 185 | |
| 186 | if (fmt) |
| 187 | strcpy(fmt, (char *)(buf + sizeof(uint32_t))); |
| 188 | return (0); |
| 189 | } |
| 190 | |
| 191 | /* |
| 192 | * try and convert sysctl return data for the target. |
| 193 | * XXX doesn't handle CTLTYPE_OPAQUE and CTLTYPE_STRUCT. |
| 194 | */ |
| 195 | static int sysctl_oldcvt(void *holdp, size_t holdlen, uint32_t kind) |
| 196 | { |
| 197 | switch (kind & CTLTYPE) { |
| 198 | case CTLTYPE_INT: |
| 199 | case CTLTYPE_UINT: |
| 200 | *(uint32_t *)holdp = tswap32(*(uint32_t *)holdp); |
| 201 | break; |
| 202 | #ifdef TARGET_ABI32 |
| 203 | case CTLTYPE_LONG: |
| 204 | case CTLTYPE_ULONG: |
| 205 | *(uint32_t *)holdp = tswap32(*(long *)holdp); |
| 206 | break; |
| 207 | #else |
| 208 | case CTLTYPE_LONG: |
| 209 | *(uint64_t *)holdp = tswap64(*(long *)holdp); |
| 210 | case CTLTYPE_ULONG: |
| 211 | *(uint64_t *)holdp = tswap64(*(unsigned long *)holdp); |
| 212 | break; |
| 213 | #endif |
| 214 | case CTLTYPE_QUAD: |
| 215 | *(uint64_t *)holdp = tswap64(*(uint64_t *)holdp); |
| 216 | break; |
| 217 | case CTLTYPE_STRING: |
| 218 | break; |
| 219 | default: |
| 220 | /* XXX unhandled */ |
| 221 | return -1; |
| 222 | } |
| 223 | return 0; |
| 224 | } |
| 225 | |
| 226 | /* XXX this needs to be emulated on non-FreeBSD hosts... */ |
| 227 | static abi_long do_freebsd_sysctl(abi_ulong namep, int32_t namelen, abi_ulong oldp, |
| 228 | abi_ulong oldlenp, abi_ulong newp, abi_ulong newlen) |
| 229 | { |
| 230 | abi_long ret; |
| 231 | void *hnamep, *holdp, *hnewp = NULL; |
| 232 | size_t holdlen; |
| 233 | abi_ulong oldlen = 0; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 234 | int32_t *snamep = g_malloc(sizeof(int32_t) * namelen), *p, *q, i; |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 235 | uint32_t kind = 0; |
| 236 | |
| 237 | if (oldlenp) |
| 238 | get_user_ual(oldlen, oldlenp); |
| 239 | if (!(hnamep = lock_user(VERIFY_READ, namep, namelen, 1))) |
| 240 | return -TARGET_EFAULT; |
| 241 | if (newp && !(hnewp = lock_user(VERIFY_READ, newp, newlen, 1))) |
| 242 | return -TARGET_EFAULT; |
| 243 | if (!(holdp = lock_user(VERIFY_WRITE, oldp, oldlen, 0))) |
| 244 | return -TARGET_EFAULT; |
| 245 | holdlen = oldlen; |
| 246 | for (p = hnamep, q = snamep, i = 0; i < namelen; p++, i++) |
| 247 | *q++ = tswap32(*p); |
| 248 | oidfmt(snamep, namelen, NULL, &kind); |
| 249 | /* XXX swap hnewp */ |
| 250 | ret = get_errno(sysctl(snamep, namelen, holdp, &holdlen, hnewp, newlen)); |
| 251 | if (!ret) |
| 252 | sysctl_oldcvt(holdp, holdlen, kind); |
| 253 | put_user_ual(holdlen, oldlenp); |
| 254 | unlock_user(hnamep, namep, 0); |
| 255 | unlock_user(holdp, oldp, holdlen); |
| 256 | if (hnewp) |
| 257 | unlock_user(hnewp, newp, 0); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 258 | g_free(snamep); |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 259 | return ret; |
| 260 | } |
| 261 | #endif |
| 262 | |
| 263 | /* FIXME |
| 264 | * lock_iovec()/unlock_iovec() have a return code of 0 for success where |
| 265 | * other lock functions have a return code of 0 for failure. |
| 266 | */ |
| 267 | static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr, |
| 268 | int count, int copy) |
| 269 | { |
| 270 | struct target_iovec *target_vec; |
| 271 | abi_ulong base; |
| 272 | int i; |
| 273 | |
| 274 | target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1); |
| 275 | if (!target_vec) |
| 276 | return -TARGET_EFAULT; |
| 277 | for(i = 0;i < count; i++) { |
| 278 | base = tswapl(target_vec[i].iov_base); |
| 279 | vec[i].iov_len = tswapl(target_vec[i].iov_len); |
| 280 | if (vec[i].iov_len != 0) { |
| 281 | vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy); |
| 282 | /* Don't check lock_user return value. We must call writev even |
| 283 | if a element has invalid base address. */ |
| 284 | } else { |
| 285 | /* zero length pointer is ignored */ |
| 286 | vec[i].iov_base = NULL; |
| 287 | } |
| 288 | } |
| 289 | unlock_user (target_vec, target_addr, 0); |
| 290 | return 0; |
| 291 | } |
| 292 | |
| 293 | static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr, |
| 294 | int count, int copy) |
| 295 | { |
| 296 | struct target_iovec *target_vec; |
| 297 | abi_ulong base; |
| 298 | int i; |
| 299 | |
| 300 | target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1); |
| 301 | if (!target_vec) |
| 302 | return -TARGET_EFAULT; |
| 303 | for(i = 0;i < count; i++) { |
| 304 | if (target_vec[i].iov_base) { |
| 305 | base = tswapl(target_vec[i].iov_base); |
| 306 | unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); |
| 307 | } |
| 308 | } |
| 309 | unlock_user (target_vec, target_addr, 0); |
| 310 | |
| 311 | return 0; |
| 312 | } |
| 313 | |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 314 | /* do_syscall() should always have a single exit point at the end so |
| 315 | that actions, such as logging of syscall results, can be performed. |
| 316 | All errnos that do_syscall() returns must be -TARGET_<errcode>. */ |
| 317 | abi_long do_freebsd_syscall(void *cpu_env, int num, abi_long arg1, |
| 318 | abi_long arg2, abi_long arg3, abi_long arg4, |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 319 | abi_long arg5, abi_long arg6, abi_long arg7, |
| 320 | abi_long arg8) |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 321 | { |
| 322 | abi_long ret; |
| 323 | void *p; |
| 324 | |
| 325 | #ifdef DEBUG |
| 326 | gemu_log("freebsd syscall %d\n", num); |
| 327 | #endif |
| 328 | if(do_strace) |
| 329 | print_freebsd_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); |
| 330 | |
| 331 | switch(num) { |
| 332 | case TARGET_FREEBSD_NR_exit: |
Juan Quintela | 9788c9c | 2009-07-27 16:13:02 +0200 | [diff] [blame] | 333 | #ifdef TARGET_GPROF |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 334 | _mcleanup(); |
| 335 | #endif |
| 336 | gdb_exit(cpu_env, arg1); |
| 337 | /* XXX: should free thread stack and CPU env */ |
| 338 | _exit(arg1); |
| 339 | ret = 0; /* avoid warning */ |
| 340 | break; |
| 341 | case TARGET_FREEBSD_NR_read: |
| 342 | if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) |
| 343 | goto efault; |
| 344 | ret = get_errno(read(arg1, p, arg3)); |
| 345 | unlock_user(p, arg2, ret); |
| 346 | break; |
| 347 | case TARGET_FREEBSD_NR_write: |
| 348 | if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) |
| 349 | goto efault; |
| 350 | ret = get_errno(write(arg1, p, arg3)); |
| 351 | unlock_user(p, arg2, 0); |
| 352 | break; |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 353 | case TARGET_FREEBSD_NR_writev: |
| 354 | { |
| 355 | int count = arg3; |
| 356 | struct iovec *vec; |
| 357 | |
| 358 | vec = alloca(count * sizeof(struct iovec)); |
| 359 | if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0) |
| 360 | goto efault; |
| 361 | ret = get_errno(writev(arg1, vec, count)); |
| 362 | unlock_iovec(vec, arg2, count, 0); |
| 363 | } |
| 364 | break; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 365 | case TARGET_FREEBSD_NR_open: |
| 366 | if (!(p = lock_user_string(arg1))) |
| 367 | goto efault; |
| 368 | ret = get_errno(open(path(p), |
| 369 | target_to_host_bitmask(arg2, fcntl_flags_tbl), |
| 370 | arg3)); |
| 371 | unlock_user(p, arg1, 0); |
| 372 | break; |
| 373 | case TARGET_FREEBSD_NR_mmap: |
| 374 | ret = get_errno(target_mmap(arg1, arg2, arg3, |
| 375 | target_to_host_bitmask(arg4, mmap_flags_tbl), |
| 376 | arg5, |
| 377 | arg6)); |
| 378 | break; |
| 379 | case TARGET_FREEBSD_NR_mprotect: |
| 380 | ret = get_errno(target_mprotect(arg1, arg2, arg3)); |
| 381 | break; |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 382 | case TARGET_FREEBSD_NR_break: |
| 383 | ret = do_obreak(arg1); |
| 384 | break; |
| 385 | #ifdef __FreeBSD__ |
| 386 | case TARGET_FREEBSD_NR___sysctl: |
| 387 | ret = do_freebsd_sysctl(arg1, arg2, arg3, arg4, arg5, arg6); |
| 388 | break; |
| 389 | #endif |
| 390 | case TARGET_FREEBSD_NR_sysarch: |
| 391 | ret = do_freebsd_sysarch(cpu_env, arg1, arg2); |
| 392 | break; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 393 | case TARGET_FREEBSD_NR_syscall: |
| 394 | case TARGET_FREEBSD_NR___syscall: |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 395 | ret = do_freebsd_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,arg7,arg8,0); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 396 | break; |
| 397 | default: |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 398 | ret = get_errno(syscall(num, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8)); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 399 | break; |
| 400 | } |
| 401 | fail: |
| 402 | #ifdef DEBUG |
| 403 | gemu_log(" = %ld\n", ret); |
| 404 | #endif |
| 405 | if (do_strace) |
| 406 | print_freebsd_syscall_ret(num, ret); |
| 407 | return ret; |
| 408 | efault: |
| 409 | ret = -TARGET_EFAULT; |
| 410 | goto fail; |
| 411 | } |
| 412 | |
| 413 | abi_long do_netbsd_syscall(void *cpu_env, int num, abi_long arg1, |
| 414 | abi_long arg2, abi_long arg3, abi_long arg4, |
| 415 | abi_long arg5, abi_long arg6) |
| 416 | { |
| 417 | abi_long ret; |
| 418 | void *p; |
| 419 | |
| 420 | #ifdef DEBUG |
| 421 | gemu_log("netbsd syscall %d\n", num); |
| 422 | #endif |
| 423 | if(do_strace) |
| 424 | print_netbsd_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); |
| 425 | |
| 426 | switch(num) { |
| 427 | case TARGET_NETBSD_NR_exit: |
Juan Quintela | 9788c9c | 2009-07-27 16:13:02 +0200 | [diff] [blame] | 428 | #ifdef TARGET_GPROF |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 429 | _mcleanup(); |
| 430 | #endif |
| 431 | gdb_exit(cpu_env, arg1); |
| 432 | /* XXX: should free thread stack and CPU env */ |
| 433 | _exit(arg1); |
| 434 | ret = 0; /* avoid warning */ |
| 435 | break; |
| 436 | case TARGET_NETBSD_NR_read: |
| 437 | if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) |
| 438 | goto efault; |
| 439 | ret = get_errno(read(arg1, p, arg3)); |
| 440 | unlock_user(p, arg2, ret); |
| 441 | break; |
| 442 | case TARGET_NETBSD_NR_write: |
| 443 | if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) |
| 444 | goto efault; |
| 445 | ret = get_errno(write(arg1, p, arg3)); |
| 446 | unlock_user(p, arg2, 0); |
| 447 | break; |
| 448 | case TARGET_NETBSD_NR_open: |
| 449 | if (!(p = lock_user_string(arg1))) |
| 450 | goto efault; |
| 451 | ret = get_errno(open(path(p), |
| 452 | target_to_host_bitmask(arg2, fcntl_flags_tbl), |
| 453 | arg3)); |
| 454 | unlock_user(p, arg1, 0); |
| 455 | break; |
| 456 | case TARGET_NETBSD_NR_mmap: |
| 457 | ret = get_errno(target_mmap(arg1, arg2, arg3, |
| 458 | target_to_host_bitmask(arg4, mmap_flags_tbl), |
| 459 | arg5, |
| 460 | arg6)); |
| 461 | break; |
| 462 | case TARGET_NETBSD_NR_mprotect: |
| 463 | ret = get_errno(target_mprotect(arg1, arg2, arg3)); |
| 464 | break; |
| 465 | case TARGET_NETBSD_NR_syscall: |
| 466 | case TARGET_NETBSD_NR___syscall: |
| 467 | ret = do_netbsd_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); |
| 468 | break; |
| 469 | default: |
| 470 | ret = syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); |
| 471 | break; |
| 472 | } |
| 473 | fail: |
| 474 | #ifdef DEBUG |
| 475 | gemu_log(" = %ld\n", ret); |
| 476 | #endif |
| 477 | if (do_strace) |
| 478 | print_netbsd_syscall_ret(num, ret); |
| 479 | return ret; |
| 480 | efault: |
| 481 | ret = -TARGET_EFAULT; |
| 482 | goto fail; |
| 483 | } |
| 484 | |
| 485 | abi_long do_openbsd_syscall(void *cpu_env, int num, abi_long arg1, |
| 486 | abi_long arg2, abi_long arg3, abi_long arg4, |
| 487 | abi_long arg5, abi_long arg6) |
| 488 | { |
| 489 | abi_long ret; |
| 490 | void *p; |
| 491 | |
| 492 | #ifdef DEBUG |
| 493 | gemu_log("openbsd syscall %d\n", num); |
| 494 | #endif |
| 495 | if(do_strace) |
| 496 | print_openbsd_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); |
| 497 | |
| 498 | switch(num) { |
| 499 | case TARGET_OPENBSD_NR_exit: |
Juan Quintela | 9788c9c | 2009-07-27 16:13:02 +0200 | [diff] [blame] | 500 | #ifdef TARGET_GPROF |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 501 | _mcleanup(); |
| 502 | #endif |
| 503 | gdb_exit(cpu_env, arg1); |
| 504 | /* XXX: should free thread stack and CPU env */ |
| 505 | _exit(arg1); |
| 506 | ret = 0; /* avoid warning */ |
| 507 | break; |
| 508 | case TARGET_OPENBSD_NR_read: |
| 509 | if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) |
| 510 | goto efault; |
| 511 | ret = get_errno(read(arg1, p, arg3)); |
| 512 | unlock_user(p, arg2, ret); |
| 513 | break; |
| 514 | case TARGET_OPENBSD_NR_write: |
| 515 | if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) |
| 516 | goto efault; |
| 517 | ret = get_errno(write(arg1, p, arg3)); |
| 518 | unlock_user(p, arg2, 0); |
| 519 | break; |
| 520 | case TARGET_OPENBSD_NR_open: |
| 521 | if (!(p = lock_user_string(arg1))) |
| 522 | goto efault; |
| 523 | ret = get_errno(open(path(p), |
| 524 | target_to_host_bitmask(arg2, fcntl_flags_tbl), |
| 525 | arg3)); |
| 526 | unlock_user(p, arg1, 0); |
| 527 | break; |
| 528 | case TARGET_OPENBSD_NR_mmap: |
| 529 | ret = get_errno(target_mmap(arg1, arg2, arg3, |
| 530 | target_to_host_bitmask(arg4, mmap_flags_tbl), |
| 531 | arg5, |
| 532 | arg6)); |
| 533 | break; |
| 534 | case TARGET_OPENBSD_NR_mprotect: |
| 535 | ret = get_errno(target_mprotect(arg1, arg2, arg3)); |
| 536 | break; |
| 537 | case TARGET_OPENBSD_NR_syscall: |
| 538 | case TARGET_OPENBSD_NR___syscall: |
| 539 | ret = do_openbsd_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); |
| 540 | break; |
| 541 | default: |
| 542 | ret = syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); |
| 543 | break; |
| 544 | } |
| 545 | fail: |
| 546 | #ifdef DEBUG |
| 547 | gemu_log(" = %ld\n", ret); |
| 548 | #endif |
| 549 | if (do_strace) |
| 550 | print_openbsd_syscall_ret(num, ret); |
| 551 | return ret; |
| 552 | efault: |
| 553 | ret = -TARGET_EFAULT; |
| 554 | goto fail; |
| 555 | } |
| 556 | |
| 557 | void syscall_init(void) |
| 558 | { |
| 559 | } |