| linux_sysvec.c (71039) | linux_sysvec.c (71497) |
|---|---|
| 1/*- 2 * Copyright (c) 1994-1996 S�ren Schmidt 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * | 1/*- 2 * Copyright (c) 1994-1996 S�ren Schmidt 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * |
| 28 * $FreeBSD: head/sys/i386/linux/linux_sysvec.c 71039 2001-01-14 18:16:01Z des $ | 28 * $FreeBSD: head/sys/i386/linux/linux_sysvec.c 71497 2001-01-24 00:27:28Z jhb $ |
| 29 */ 30 31/* XXX we use functions that might not exist. */ 32#include "opt_compat.h" 33 34#ifndef COMPAT_43 35#error "Unable to compile Linux-emulator due to missing COMPAT_43 option!" 36#endif --- 140 unchanged lines hidden (view full) --- 177 } 178 AUXARGS_ENTRY(pos, AT_PHDR, args->phdr); 179 AUXARGS_ENTRY(pos, AT_PHENT, args->phent); 180 AUXARGS_ENTRY(pos, AT_PHNUM, args->phnum); 181 AUXARGS_ENTRY(pos, AT_PAGESZ, args->pagesz); 182 AUXARGS_ENTRY(pos, AT_FLAGS, args->flags); 183 AUXARGS_ENTRY(pos, AT_ENTRY, args->entry); 184 AUXARGS_ENTRY(pos, AT_BASE, args->base); | 29 */ 30 31/* XXX we use functions that might not exist. */ 32#include "opt_compat.h" 33 34#ifndef COMPAT_43 35#error "Unable to compile Linux-emulator due to missing COMPAT_43 option!" 36#endif --- 140 unchanged lines hidden (view full) --- 177 } 178 AUXARGS_ENTRY(pos, AT_PHDR, args->phdr); 179 AUXARGS_ENTRY(pos, AT_PHENT, args->phent); 180 AUXARGS_ENTRY(pos, AT_PHNUM, args->phnum); 181 AUXARGS_ENTRY(pos, AT_PAGESZ, args->pagesz); 182 AUXARGS_ENTRY(pos, AT_FLAGS, args->flags); 183 AUXARGS_ENTRY(pos, AT_ENTRY, args->entry); 184 AUXARGS_ENTRY(pos, AT_BASE, args->base); |
| 185 PROC_LOCK(imgp->proc); |
|
| 185 AUXARGS_ENTRY(pos, AT_UID, imgp->proc->p_cred->p_ruid); 186 AUXARGS_ENTRY(pos, AT_EUID, imgp->proc->p_cred->p_svuid); 187 AUXARGS_ENTRY(pos, AT_GID, imgp->proc->p_cred->p_rgid); 188 AUXARGS_ENTRY(pos, AT_EGID, imgp->proc->p_cred->p_svgid); | 186 AUXARGS_ENTRY(pos, AT_UID, imgp->proc->p_cred->p_ruid); 187 AUXARGS_ENTRY(pos, AT_EUID, imgp->proc->p_cred->p_svuid); 188 AUXARGS_ENTRY(pos, AT_GID, imgp->proc->p_cred->p_rgid); 189 AUXARGS_ENTRY(pos, AT_EGID, imgp->proc->p_cred->p_svgid); |
| 190 PROC_UNLOCK(imgp->proc); |
|
| 189 AUXARGS_ENTRY(pos, AT_NULL, 0); 190 191 free(imgp->auxargs, M_TEMP); 192 imgp->auxargs = NULL; 193 194 (*stack_base)--; 195 **stack_base = (long)imgp->argc; 196 return 0; --- 15 unchanged lines hidden (view full) --- 212 213#ifdef DEBUG 214 printf("Linux-emul(%ld): linux_rt_sendsig(%p, %d, %p, %lu)\n", 215 (long)p->p_pid, catcher, sig, (void*)mask, code); 216#endif 217 /* 218 * Allocate space for the signal handler context. 219 */ | 191 AUXARGS_ENTRY(pos, AT_NULL, 0); 192 193 free(imgp->auxargs, M_TEMP); 194 imgp->auxargs = NULL; 195 196 (*stack_base)--; 197 **stack_base = (long)imgp->argc; 198 return 0; --- 15 unchanged lines hidden (view full) --- 214 215#ifdef DEBUG 216 printf("Linux-emul(%ld): linux_rt_sendsig(%p, %d, %p, %lu)\n", 217 (long)p->p_pid, catcher, sig, (void*)mask, code); 218#endif 219 /* 220 * Allocate space for the signal handler context. 221 */ |
| 222 PROC_LOCK(p); |
|
| 220 if ((p->p_flag & P_ALTSTACK) && !oonstack && 221 SIGISMEMBER(p->p_sigacts->ps_sigonstack, sig)) { 222 fp = (struct linux_rt_sigframe *)(p->p_sigstk.ss_sp + 223 p->p_sigstk.ss_size - sizeof(struct linux_rt_sigframe)); 224 } else 225 fp = (struct linux_rt_sigframe *)regs->tf_esp - 1; | 223 if ((p->p_flag & P_ALTSTACK) && !oonstack && 224 SIGISMEMBER(p->p_sigacts->ps_sigonstack, sig)) { 225 fp = (struct linux_rt_sigframe *)(p->p_sigstk.ss_sp + 226 p->p_sigstk.ss_size - sizeof(struct linux_rt_sigframe)); 227 } else 228 fp = (struct linux_rt_sigframe *)regs->tf_esp - 1; |
| 229 PROC_UNLOCK(p); |
|
| 226 227 /* 228 * grow() will return FALSE if the fp will not fit inside the stack 229 * and the stack can not be grown. useracc will return FALSE 230 * if access is denied. 231 */ 232 if ((grow_stack (p, (int)fp) == FALSE) || 233 !useracc((caddr_t)fp, sizeof (struct linux_rt_sigframe), 234 VM_PROT_WRITE)) { 235 /* 236 * Process has trashed its stack; give it an illegal 237 * instruction to halt it in its tracks. 238 */ | 230 231 /* 232 * grow() will return FALSE if the fp will not fit inside the stack 233 * and the stack can not be grown. useracc will return FALSE 234 * if access is denied. 235 */ 236 if ((grow_stack (p, (int)fp) == FALSE) || 237 !useracc((caddr_t)fp, sizeof (struct linux_rt_sigframe), 238 VM_PROT_WRITE)) { 239 /* 240 * Process has trashed its stack; give it an illegal 241 * instruction to halt it in its tracks. 242 */ |
| 243 PROC_LOCK(p); |
|
| 239 SIGACTION(p, SIGILL) = SIG_DFL; 240 SIGDELSET(p->p_sigignore, SIGILL); 241 SIGDELSET(p->p_sigcatch, SIGILL); 242 SIGDELSET(p->p_sigmask, SIGILL); | 244 SIGACTION(p, SIGILL) = SIG_DFL; 245 SIGDELSET(p->p_sigignore, SIGILL); 246 SIGDELSET(p->p_sigcatch, SIGILL); 247 SIGDELSET(p->p_sigmask, SIGILL); |
| 248 PROC_UNLOCK(p); |
|
| 243#ifdef DEBUG 244 printf("Linux-emul(%ld): linux_rt_sendsig -- bad stack %p, " 245 "oonstack=%x\n", (long)p->p_pid, fp, oonstack); 246#endif 247 psignal(p, SIGILL); 248 return; 249 } 250 --- 15 unchanged lines hidden (view full) --- 266 frame.sf_si.lsi_addr = (void *)regs->tf_err; 267 268 /* 269 * Build the signal context to be used by sigreturn. 270 */ 271 frame.sf_sc.uc_flags = 0; /* XXX ??? */ 272 frame.sf_sc.uc_link = NULL; /* XXX ??? */ 273 | 249#ifdef DEBUG 250 printf("Linux-emul(%ld): linux_rt_sendsig -- bad stack %p, " 251 "oonstack=%x\n", (long)p->p_pid, fp, oonstack); 252#endif 253 psignal(p, SIGILL); 254 return; 255 } 256 --- 15 unchanged lines hidden (view full) --- 272 frame.sf_si.lsi_addr = (void *)regs->tf_err; 273 274 /* 275 * Build the signal context to be used by sigreturn. 276 */ 277 frame.sf_sc.uc_flags = 0; /* XXX ??? */ 278 frame.sf_sc.uc_link = NULL; /* XXX ??? */ 279 |
| 280 PROC_LOCK(p); |
|
| 274 frame.sf_sc.uc_stack.ss_sp = p->p_sigstk.ss_sp; 275 frame.sf_sc.uc_stack.ss_size = p->p_sigstk.ss_size; 276 frame.sf_sc.uc_stack.ss_flags = (p->p_flag & P_ALTSTACK) 277 ? ((oonstack) ? LINUX_SS_ONSTACK : 0) : LINUX_SS_DISABLE; | 281 frame.sf_sc.uc_stack.ss_sp = p->p_sigstk.ss_sp; 282 frame.sf_sc.uc_stack.ss_size = p->p_sigstk.ss_size; 283 frame.sf_sc.uc_stack.ss_flags = (p->p_flag & P_ALTSTACK) 284 ? ((oonstack) ? LINUX_SS_ONSTACK : 0) : LINUX_SS_DISABLE; |
| 285 PROC_UNLOCK(p); |
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| 278 279 bsd_to_linux_sigset(mask, &frame.sf_sc.uc_sigmask); 280 281 frame.sf_sc.uc_mcontext.sc_mask = frame.sf_sc.uc_sigmask.__bits[0]; 282 frame.sf_sc.uc_mcontext.sc_gs = rgs(); 283 frame.sf_sc.uc_mcontext.sc_fs = regs->tf_fs; 284 frame.sf_sc.uc_mcontext.sc_es = regs->tf_es; 285 frame.sf_sc.uc_mcontext.sc_ds = regs->tf_ds; --- 76 unchanged lines hidden (view full) --- 362#ifdef DEBUG 363 printf("Linux-emul(%ld): linux_sendsig(%p, %d, %p, %lu)\n", 364 (long)p->p_pid, catcher, sig, (void*)mask, code); 365#endif 366 367 /* 368 * Allocate space for the signal handler context. 369 */ | 286 287 bsd_to_linux_sigset(mask, &frame.sf_sc.uc_sigmask); 288 289 frame.sf_sc.uc_mcontext.sc_mask = frame.sf_sc.uc_sigmask.__bits[0]; 290 frame.sf_sc.uc_mcontext.sc_gs = rgs(); 291 frame.sf_sc.uc_mcontext.sc_fs = regs->tf_fs; 292 frame.sf_sc.uc_mcontext.sc_es = regs->tf_es; 293 frame.sf_sc.uc_mcontext.sc_ds = regs->tf_ds; --- 76 unchanged lines hidden (view full) --- 370#ifdef DEBUG 371 printf("Linux-emul(%ld): linux_sendsig(%p, %d, %p, %lu)\n", 372 (long)p->p_pid, catcher, sig, (void*)mask, code); 373#endif 374 375 /* 376 * Allocate space for the signal handler context. 377 */ |
| 378 PROC_LOCK(p); |
|
| 370 if ((p->p_flag & P_ALTSTACK) && !oonstack && 371 SIGISMEMBER(p->p_sigacts->ps_sigonstack, sig)) { 372 fp = (struct linux_sigframe *)(p->p_sigstk.ss_sp + 373 p->p_sigstk.ss_size - sizeof(struct linux_sigframe)); 374 } else 375 fp = (struct linux_sigframe *)regs->tf_esp - 1; | 379 if ((p->p_flag & P_ALTSTACK) && !oonstack && 380 SIGISMEMBER(p->p_sigacts->ps_sigonstack, sig)) { 381 fp = (struct linux_sigframe *)(p->p_sigstk.ss_sp + 382 p->p_sigstk.ss_size - sizeof(struct linux_sigframe)); 383 } else 384 fp = (struct linux_sigframe *)regs->tf_esp - 1; |
| 385 PROC_UNLOCK(p); |
|
| 376 377 /* 378 * grow() will return FALSE if the fp will not fit inside the stack 379 * and the stack can not be grown. useracc will return FALSE 380 * if access is denied. 381 */ 382 if ((grow_stack (p, (int)fp) == FALSE) || 383 !useracc((caddr_t)fp, sizeof (struct linux_sigframe), 384 VM_PROT_WRITE)) { 385 /* 386 * Process has trashed its stack; give it an illegal 387 * instruction to halt it in its tracks. 388 */ | 386 387 /* 388 * grow() will return FALSE if the fp will not fit inside the stack 389 * and the stack can not be grown. useracc will return FALSE 390 * if access is denied. 391 */ 392 if ((grow_stack (p, (int)fp) == FALSE) || 393 !useracc((caddr_t)fp, sizeof (struct linux_sigframe), 394 VM_PROT_WRITE)) { 395 /* 396 * Process has trashed its stack; give it an illegal 397 * instruction to halt it in its tracks. 398 */ |
| 399 PROC_LOCK(p); |
|
| 389 SIGACTION(p, SIGILL) = SIG_DFL; 390 SIGDELSET(p->p_sigignore, SIGILL); 391 SIGDELSET(p->p_sigcatch, SIGILL); 392 SIGDELSET(p->p_sigmask, SIGILL); | 400 SIGACTION(p, SIGILL) = SIG_DFL; 401 SIGDELSET(p->p_sigignore, SIGILL); 402 SIGDELSET(p->p_sigcatch, SIGILL); 403 SIGDELSET(p->p_sigmask, SIGILL); |
| 404 PROC_UNLOCK(p); |
|
| 393 psignal(p, SIGILL); 394 return; 395 } 396 397 /* 398 * Build the argument list for the signal handler. 399 */ 400 if (p->p_sysent->sv_sigtbl) --- 118 unchanged lines hidden (view full) --- 519 if (!CS_SECURE(frame.sf_sc.sc_cs)) { 520 trapsignal(p, SIGBUS, T_PROTFLT); 521 return(EINVAL); 522 } 523 524 lmask.__bits[0] = frame.sf_sc.sc_mask; 525 for (i = 0; i < (LINUX_NSIG_WORDS-1); i++) 526 lmask.__bits[i+1] = frame.sf_extramask[i]; | 405 psignal(p, SIGILL); 406 return; 407 } 408 409 /* 410 * Build the argument list for the signal handler. 411 */ 412 if (p->p_sysent->sv_sigtbl) --- 118 unchanged lines hidden (view full) --- 531 if (!CS_SECURE(frame.sf_sc.sc_cs)) { 532 trapsignal(p, SIGBUS, T_PROTFLT); 533 return(EINVAL); 534 } 535 536 lmask.__bits[0] = frame.sf_sc.sc_mask; 537 for (i = 0; i < (LINUX_NSIG_WORDS-1); i++) 538 lmask.__bits[i+1] = frame.sf_extramask[i]; |
| 539 PROC_LOCK(p); |
|
| 527 linux_to_bsd_sigset(&lmask, &p->p_sigmask); 528 SIG_CANTMASK(p->p_sigmask); | 540 linux_to_bsd_sigset(&lmask, &p->p_sigmask); 541 SIG_CANTMASK(p->p_sigmask); |
| 542 PROC_UNLOCK(p); |
|
| 529 530 /* 531 * Restore signal context. 532 */ 533 /* %gs was restored by the trampoline. */ 534 regs->tf_fs = frame.sf_sc.sc_fs; 535 regs->tf_es = frame.sf_sc.sc_es; 536 regs->tf_ds = frame.sf_sc.sc_ds; --- 78 unchanged lines hidden (view full) --- 615 * other selectors, invalid %eip's and invalid %esp's. 616 */ 617#define CS_SECURE(cs) (ISPL(cs) == SEL_UPL) 618 if (!CS_SECURE(context->sc_cs)) { 619 trapsignal(p, SIGBUS, T_PROTFLT); 620 return(EINVAL); 621 } 622 | 543 544 /* 545 * Restore signal context. 546 */ 547 /* %gs was restored by the trampoline. */ 548 regs->tf_fs = frame.sf_sc.sc_fs; 549 regs->tf_es = frame.sf_sc.sc_es; 550 regs->tf_ds = frame.sf_sc.sc_ds; --- 78 unchanged lines hidden (view full) --- 629 * other selectors, invalid %eip's and invalid %esp's. 630 */ 631#define CS_SECURE(cs) (ISPL(cs) == SEL_UPL) 632 if (!CS_SECURE(context->sc_cs)) { 633 trapsignal(p, SIGBUS, T_PROTFLT); 634 return(EINVAL); 635 } 636 |
| 637 PROC_LOCK(p); |
|
| 623 linux_to_bsd_sigset(&uc.uc_sigmask, &p->p_sigmask); 624 SIG_CANTMASK(p->p_sigmask); | 638 linux_to_bsd_sigset(&uc.uc_sigmask, &p->p_sigmask); 639 SIG_CANTMASK(p->p_sigmask); |
| 640 PROC_UNLOCK(p); |
|
| 625 626 /* 627 * Restore signal context 628 */ 629 /* %gs was restored by the trampoline. */ 630 regs->tf_fs = context->sc_fs; 631 regs->tf_es = context->sc_es; 632 regs->tf_ds = context->sc_ds; --- 202 unchanged lines hidden --- | 641 642 /* 643 * Restore signal context 644 */ 645 /* %gs was restored by the trampoline. */ 646 regs->tf_fs = context->sc_fs; 647 regs->tf_es = context->sc_es; 648 regs->tf_ds = context->sc_ds; --- 202 unchanged lines hidden --- |