linux_machdep.c revision 1.4
1 /* $NetBSD: linux_machdep.c,v 1.4 2005/05/20 12:48:27 fvdl Exp $ */ 2 3 /*- 4 * Copyright (c) 2005 Emmanuel Dreyfus, all rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Emmanuel Dreyfus 17 * 4. The name of the author may not be used to endorse or promote 18 * products derived from this software without specific prior written 19 * permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS'' 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 36 __KERNEL_RCSID(0, "$NetBSD: linux_machdep.c,v 1.4 2005/05/20 12:48:27 fvdl Exp $"); 37 38 #include <sys/param.h> 39 #include <sys/types.h> 40 #include <sys/systm.h> 41 #include <sys/signal.h> 42 #include <sys/exec.h> 43 #include <sys/proc.h> 44 #include <sys/ptrace.h> /* for process_read_fpregs() */ 45 #include <sys/user.h> 46 #include <sys/ucontext.h> 47 48 #include <machine/reg.h> 49 #include <machine/pcb.h> 50 #include <machine/fpu.h> 51 #include <machine/mcontext.h> 52 #include <machine/specialreg.h> 53 #include <machine/vmparam.h> 54 55 #include <compat/linux/common/linux_signal.h> 56 #include <compat/linux/common/linux_errno.h> 57 #include <compat/linux/common/linux_exec.h> 58 #include <compat/linux/common/linux_ioctl.h> 59 #include <compat/linux/common/linux_prctl.h> 60 #include <compat/linux/common/linux_machdep.h> 61 #include <compat/linux/linux_syscall.h> 62 #include <compat/linux/linux_syscallargs.h> 63 64 void 65 linux_setregs(l, epp, stack) 66 struct lwp *l; 67 struct exec_package *epp; 68 u_long stack; 69 { 70 struct pcb *pcb = &l->l_addr->u_pcb; 71 struct trapframe *tf; 72 73 /* If we were using the FPU, forget about it. */ 74 if (l->l_addr->u_pcb.pcb_fpcpu != NULL) 75 fpusave_lwp(l, 0); 76 77 l->l_md.md_flags &= ~MDP_USEDFPU; 78 pcb->pcb_flags = 0; 79 pcb->pcb_savefpu.fp_fxsave.fx_fcw = __NetBSD_NPXCW__; 80 pcb->pcb_savefpu.fp_fxsave.fx_mxcsr = __INITIAL_MXCSR__; 81 pcb->pcb_savefpu.fp_fxsave.fx_mxcsr_mask = __INITIAL_MXCSR_MASK__; 82 pcb->pcb_fs = 0; 83 pcb->pcb_gs = 0; 84 85 l->l_proc->p_flag &= ~P_32; 86 87 tf = l->l_md.md_regs; 88 tf->tf_rax = 0; 89 tf->tf_rbx = 0; 90 tf->tf_rcx = epp->ep_entry; 91 tf->tf_rdx = 0; 92 tf->tf_rsi = 0; 93 tf->tf_rdi = 0; 94 tf->tf_rbp = 0; 95 tf->tf_rsp = stack; 96 tf->tf_r8 = 0; 97 tf->tf_r9 = 0; 98 tf->tf_r10 = 0; 99 tf->tf_r11 = 0; 100 tf->tf_r12 = 0; 101 tf->tf_r13 = 0; 102 tf->tf_r14 = 0; 103 tf->tf_r15 = 0; 104 tf->tf_rip = epp->ep_entry; 105 tf->tf_rflags = PSL_USERSET; 106 tf->tf_cs = GSEL(GUCODE_SEL, SEL_UPL); 107 tf->tf_ss = GSEL(GUDATA_SEL, SEL_UPL); 108 tf->tf_ds = 0; 109 tf->tf_es = 0; 110 tf->tf_fs = 0; 111 tf->tf_gs = 0; 112 113 return; 114 } 115 116 void 117 linux_sendsig(ksi, mask) 118 const ksiginfo_t *ksi; 119 const sigset_t *mask; 120 { 121 struct lwp *l = curlwp; 122 struct proc *p = l->l_proc; 123 struct sigacts *ps = p->p_sigacts; 124 int onstack; 125 int sig = ksi->ksi_signo; 126 struct linux_rt_sigframe *sfp, sigframe; 127 struct linux__fpstate *fpsp, fpstate; 128 struct fpreg fpregs; 129 struct trapframe *tf = l->l_md.md_regs; 130 sig_t catcher = SIGACTION(p, sig).sa_handler; 131 linux_sigset_t lmask; 132 char *sp; 133 int error; 134 135 /* Do we need to jump onto the signal stack? */ 136 onstack = 137 (p->p_sigctx.ps_sigstk.ss_flags & (SS_DISABLE | SS_ONSTACK)) == 0 && 138 (SIGACTION(p, sig).sa_flags & SA_ONSTACK) != 0; 139 140 /* Allocate space for the signal handler context. */ 141 if (onstack) 142 sp = ((caddr_t)p->p_sigctx.ps_sigstk.ss_sp + 143 p->p_sigctx.ps_sigstk.ss_size); 144 else 145 sp = (caddr_t)tf->tf_rsp - 128; 146 147 148 /* 149 * Save FPU state, if any 150 */ 151 if (l->l_md.md_flags & MDP_USEDFPU) { 152 sp = (char *) 153 (((long)sp - sizeof(struct linux__fpstate)) & ~0xfUL); 154 fpsp = (struct linux__fpstate *)sp; 155 156 (void)process_read_fpregs(l, &fpregs); 157 bzero(&fpstate, sizeof(fpstate)); 158 159 fpstate.cwd = fpregs.fp_fcw; 160 fpstate.swd = fpregs.fp_fsw; 161 fpstate.twd = fpregs.fp_ftw; 162 fpstate.fop = fpregs.fp_fop; 163 fpstate.rip = fpregs.fp_rip; 164 fpstate.rdp = fpregs.fp_rdp; 165 fpstate.mxcsr = fpregs.fp_mxcsr; 166 fpstate.mxcsr_mask = fpregs.fp_mxcsr_mask; 167 memcpy(&fpstate.st_space, &fpregs.fp_st, 168 sizeof(fpstate.st_space)); 169 memcpy(&fpstate.xmm_space, &fpregs.fp_xmm, 170 sizeof(fpstate.xmm_space)); 171 172 if ((error = copyout(&fpstate, fpsp, sizeof(fpstate))) != 0) { 173 sigexit(l, SIGILL); 174 return; 175 } 176 } else { 177 fpsp = NULL; 178 } 179 180 /* 181 * Populate the rt_sigframe 182 */ 183 sp = (char *) 184 ((((long)sp - sizeof(struct linux_rt_sigframe)) & ~0xfUL) - 8); 185 sfp = (struct linux_rt_sigframe *)sp; 186 187 bzero(&sigframe, sizeof(sigframe)); 188 if (ps->sa_sigdesc[sig].sd_vers != 0) 189 sigframe.pretcode = (char *)ps->sa_sigdesc[sig].sd_tramp; 190 else 191 sigframe.pretcode = NULL; 192 193 /* 194 * The user context 195 */ 196 sigframe.uc.luc_flags = 0; 197 sigframe.uc.luc_link = NULL; 198 199 /* This is used regardless of SA_ONSTACK in Linux */ 200 sigframe.uc.luc_stack.ss_sp = p->p_sigctx.ps_sigstk.ss_sp; 201 sigframe.uc.luc_stack.ss_size = p->p_sigctx.ps_sigstk.ss_size; 202 sigframe.uc.luc_stack.ss_flags = 0; 203 if (p->p_sigctx.ps_sigstk.ss_flags & SS_ONSTACK) 204 sigframe.uc.luc_stack.ss_flags |= LINUX_SS_ONSTACK; 205 if (p->p_sigctx.ps_sigstk.ss_flags & SS_DISABLE) 206 sigframe.uc.luc_stack.ss_flags |= LINUX_SS_DISABLE; 207 208 sigframe.uc.luc_mcontext.r8 = tf->tf_r8; 209 sigframe.uc.luc_mcontext.r9 = tf->tf_r9; 210 sigframe.uc.luc_mcontext.r10 = tf->tf_r10; 211 sigframe.uc.luc_mcontext.r11 = tf->tf_r11; 212 sigframe.uc.luc_mcontext.r12 = tf->tf_r12; 213 sigframe.uc.luc_mcontext.r13 = tf->tf_r13; 214 sigframe.uc.luc_mcontext.r14 = tf->tf_r14; 215 sigframe.uc.luc_mcontext.r15 = tf->tf_r15; 216 sigframe.uc.luc_mcontext.rdi = tf->tf_rdi; 217 sigframe.uc.luc_mcontext.rsi = tf->tf_rsi; 218 sigframe.uc.luc_mcontext.rbp = tf->tf_rbp; 219 sigframe.uc.luc_mcontext.rbx = tf->tf_rbx; 220 sigframe.uc.luc_mcontext.rdx = tf->tf_rdx; 221 sigframe.uc.luc_mcontext.rcx = tf->tf_rcx; 222 sigframe.uc.luc_mcontext.rsp = tf->tf_rsp; 223 sigframe.uc.luc_mcontext.eflags = tf->tf_rflags; 224 sigframe.uc.luc_mcontext.cs = tf->tf_cs; 225 sigframe.uc.luc_mcontext.gs = tf->tf_gs; 226 sigframe.uc.luc_mcontext.fs = tf->tf_fs; 227 sigframe.uc.luc_mcontext.err = tf->tf_err; 228 sigframe.uc.luc_mcontext.trapno = tf->tf_trapno; 229 native_to_linux_sigset(&lmask, mask); 230 sigframe.uc.luc_mcontext.oldmask = lmask.sig[0]; 231 sigframe.uc.luc_mcontext.cr2 = (long)l->l_addr->u_pcb.pcb_onfault; 232 sigframe.uc.luc_mcontext.fpstate = fpsp; 233 native_to_linux_sigset(&sigframe.uc.luc_sigmask, mask); 234 235 /* 236 * the siginfo structure 237 */ 238 sigframe.info.lsi_signo = native_to_linux_signo[sig]; 239 sigframe.info.lsi_errno = native_to_linux_errno[ksi->ksi_errno]; 240 sigframe.info.lsi_code = ksi->ksi_code; 241 242 /* XXX This is a rought conversion, taken from i386 code */ 243 switch (sigframe.info.lsi_signo) { 244 case LINUX_SIGILL: 245 case LINUX_SIGFPE: 246 case LINUX_SIGSEGV: 247 case LINUX_SIGBUS: 248 case LINUX_SIGTRAP: 249 sigframe.info._sifields._sigfault._addr = ksi->ksi_addr; 250 break; 251 case LINUX_SIGCHLD: 252 sigframe.info._sifields._sigchld._pid = ksi->ksi_pid; 253 sigframe.info._sifields._sigchld._uid = ksi->ksi_uid; 254 sigframe.info._sifields._sigchld._status = ksi->ksi_status; 255 sigframe.info._sifields._sigchld._utime = ksi->ksi_utime; 256 sigframe.info._sifields._sigchld._stime = ksi->ksi_stime; 257 break; 258 case LINUX_SIGIO: 259 sigframe.info._sifields._sigpoll._band = ksi->ksi_band; 260 sigframe.info._sifields._sigpoll._fd = ksi->ksi_fd; 261 break; 262 default: 263 sigframe.info._sifields._sigchld._pid = ksi->ksi_pid; 264 sigframe.info._sifields._sigchld._uid = ksi->ksi_uid; 265 if ((sigframe.info.lsi_signo == LINUX_SIGALRM) || 266 (sigframe.info.lsi_signo >= LINUX_SIGRTMIN)) 267 sigframe.info._sifields._timer._sigval.sival_ptr = 268 ksi->ksi_sigval.sival_ptr; 269 break; 270 } 271 272 if ((error = copyout(&sigframe, sp, sizeof(sigframe))) != 0) { 273 sigexit(l, SIGILL); 274 return; 275 } 276 277 /* 278 * Setup registers 279 * XXX for an unknown reason, the stack is shifted of 24 bytes 280 * when the signal handler is called. The +24 below is a dirty 281 * workaround, and the real problem should be fixed. 282 */ 283 buildcontext(l, catcher, sp + 24); 284 tf->tf_rdi = sigframe.info.lsi_signo; 285 tf->tf_rax = 0; 286 tf->tf_rsi = (long)&sfp->info; 287 tf->tf_rdx = (long)&sfp->uc; 288 289 /* 290 * Remember we use signal stack 291 */ 292 if (onstack) 293 p->p_sigctx.ps_sigstk.ss_flags |= SS_ONSTACK; 294 return; 295 } 296 297 int 298 linux_sys_modify_ldt(l, v, retval) 299 struct lwp *l; 300 void *v; 301 register_t *retval; 302 { 303 return 0; 304 } 305 306 int 307 linux_sys_iopl(l, v, retval) 308 struct lwp *l; 309 void *v; 310 register_t *retval; 311 { 312 return 0; 313 } 314 315 int 316 linux_sys_ioperm(l, v, retval) 317 struct lwp *l; 318 void *v; 319 register_t *retval; 320 { 321 return 0; 322 } 323 324 dev_t 325 linux_fakedev(dev, raw) 326 dev_t dev; 327 int raw; 328 { 329 return 0; 330 } 331 332 int 333 linux_machdepioctl(p, v, retval) 334 struct proc *p; 335 void *v; 336 register_t *retval; 337 { 338 return 0; 339 } 340 341 int 342 linux_sys_rt_sigreturn(l, v, retval) 343 struct lwp *l; 344 void *v; 345 register_t *retval; 346 { 347 struct linux_sys_rt_sigreturn_args /* { 348 syscallarg(struct linux_ucontext *) ucp; 349 } */ *uap = v; 350 struct linux_ucontext luctx; 351 struct trapframe *tf = l->l_md.md_regs; 352 struct linux_sigcontext *lsigctx; 353 struct linux__fpstate fpstate; 354 ucontext_t uctx; 355 mcontext_t *mctx; 356 struct fxsave64 *fxsave; 357 int error; 358 359 if ((error = copyin(SCARG(uap, ucp), &luctx, sizeof(luctx))) != 0) { 360 sigexit(l, SIGILL); 361 return error; 362 } 363 lsigctx = &luctx.luc_mcontext; 364 365 bzero(&uctx, sizeof(uctx)); 366 mctx = (mcontext_t *)&uctx.uc_mcontext; 367 fxsave = (struct fxsave64 *)&mctx->__fpregs; 368 369 /* 370 * Set the flags. Linux always have CPU, stack and signal state, 371 * FPU is optional. uc_flags is not used to tell what we have. 372 */ 373 uctx.uc_flags = (_UC_SIGMASK|_UC_CPU|_UC_STACK|_UC_CLRSTACK); 374 if (lsigctx->fpstate != NULL) 375 uctx.uc_flags |= _UC_FPU; 376 uctx.uc_link = NULL; 377 378 /* 379 * Signal set 380 */ 381 linux_to_native_sigset(&uctx.uc_sigmask, &luctx.luc_sigmask); 382 383 /* 384 * CPU state 385 */ 386 mctx->__gregs[_REG_R8] = lsigctx->r8; 387 mctx->__gregs[_REG_R9] = lsigctx->r9; 388 mctx->__gregs[_REG_R10] = lsigctx->r10; 389 mctx->__gregs[_REG_R11] = lsigctx->r11; 390 mctx->__gregs[_REG_R12] = lsigctx->r12; 391 mctx->__gregs[_REG_R13] = lsigctx->r13; 392 mctx->__gregs[_REG_R14] = lsigctx->r14; 393 mctx->__gregs[_REG_R15] = lsigctx->r15; 394 mctx->__gregs[_REG_RDI] = lsigctx->rdi; 395 mctx->__gregs[_REG_RSI] = lsigctx->rsi; 396 mctx->__gregs[_REG_RBP] = lsigctx->rbp; 397 mctx->__gregs[_REG_RBX] = lsigctx->rbx; 398 mctx->__gregs[_REG_RAX] = tf->tf_rax; 399 mctx->__gregs[_REG_RDX] = lsigctx->rdx; 400 mctx->__gregs[_REG_RCX] = lsigctx->rcx; 401 mctx->__gregs[_REG_RIP] = lsigctx->rip; 402 mctx->__gregs[_REG_RFL] = lsigctx->eflags; 403 mctx->__gregs[_REG_CS] = lsigctx->cs; 404 mctx->__gregs[_REG_GS] = lsigctx->gs; 405 mctx->__gregs[_REG_FS] = lsigctx->fs; 406 mctx->__gregs[_REG_ERR] = lsigctx->err; 407 mctx->__gregs[_REG_TRAPNO] = lsigctx->trapno; 408 mctx->__gregs[_REG_ES] = tf->tf_es; 409 mctx->__gregs[_REG_DS] = tf->tf_ds; 410 mctx->__gregs[_REG_URSP] = lsigctx->rsp; /* XXX */ 411 mctx->__gregs[_REG_SS] = tf->tf_ss; 412 413 /* 414 * FPU state 415 */ 416 if (lsigctx->fpstate != NULL) { 417 error = copyin(lsigctx->fpstate, &fpstate, sizeof(fpstate)); 418 if (error != 0) { 419 sigexit(l, SIGILL); 420 return error; 421 } 422 423 fxsave->fx_fcw = fpstate.cwd; 424 fxsave->fx_fsw = fpstate.swd; 425 fxsave->fx_ftw = fpstate.twd; 426 fxsave->fx_fop = fpstate.fop; 427 fxsave->fx_rip = fpstate.rip; 428 fxsave->fx_rdp = fpstate.rdp; 429 fxsave->fx_mxcsr = fpstate.mxcsr; 430 fxsave->fx_mxcsr_mask = fpstate.mxcsr_mask; 431 memcpy(&fxsave->fx_st, &fpstate.st_space, 432 sizeof(fxsave->fx_st)); 433 memcpy(&fxsave->fx_xmm, &fpstate.xmm_space, 434 sizeof(fxsave->fx_xmm)); 435 } 436 437 /* 438 * And the stack 439 */ 440 uctx.uc_stack.ss_flags = 0; 441 if (luctx.luc_stack.ss_flags & LINUX_SS_ONSTACK); 442 uctx.uc_stack.ss_flags = SS_ONSTACK; 443 444 if (luctx.luc_stack.ss_flags & LINUX_SS_DISABLE); 445 uctx.uc_stack.ss_flags = SS_DISABLE; 446 447 uctx.uc_stack.ss_sp = luctx.luc_stack.ss_sp; 448 uctx.uc_stack.ss_size = luctx.luc_stack.ss_size; 449 450 /* 451 * And let setucontext deal with that. 452 */ 453 return setucontext(l, &uctx); 454 } 455 456 int 457 linux_sys_arch_prctl(l, v, retval) 458 struct lwp *l; 459 void *v; 460 register_t *retval; 461 { 462 struct linux_sys_arch_prctl_args /* { 463 syscallarg(int) code; 464 syscallarg(unsigned long) addr; 465 } */ *uap = v; 466 struct pcb *pcb = &l->l_addr->u_pcb; 467 struct trapframe *tf = l->l_md.md_regs; 468 int error; 469 uint64_t taddr; 470 471 switch(SCARG(uap, code)) { 472 case LINUX_ARCH_SET_GS: 473 taddr = SCARG(uap, addr); 474 if (taddr >= VM_MAXUSER_ADDRESS) 475 return EINVAL; 476 pcb->pcb_gs = taddr; 477 pcb->pcb_flags |= PCB_GS64; 478 if (l == curlwp) 479 wrmsr(MSR_KERNELGSBASE, taddr); 480 break; 481 482 case LINUX_ARCH_GET_GS: 483 if (pcb->pcb_flags & PCB_GS64) 484 taddr = pcb->pcb_gs; 485 else { 486 error = memseg_baseaddr(l, tf->tf_fs, NULL, 0, &taddr); 487 if (error != 0) 488 return error; 489 } 490 error = copyout(&taddr, (char *)SCARG(uap, addr), 8); 491 if (error != 0) 492 return error; 493 break; 494 495 case LINUX_ARCH_SET_FS: 496 taddr = SCARG(uap, addr); 497 if (taddr >= VM_MAXUSER_ADDRESS) 498 return EINVAL; 499 pcb->pcb_fs = taddr; 500 pcb->pcb_flags |= PCB_FS64; 501 if (l == curlwp) 502 wrmsr(MSR_FSBASE, taddr); 503 break; 504 505 case LINUX_ARCH_GET_FS: 506 if (pcb->pcb_flags & PCB_FS64) 507 taddr = pcb->pcb_fs; 508 else { 509 error = memseg_baseaddr(l, tf->tf_fs, NULL, 0, &taddr); 510 if (error != 0) 511 return error; 512 } 513 error = copyout(&taddr, (char *)SCARG(uap, addr), 8); 514 if (error != 0) 515 return error; 516 break; 517 518 default: 519 #ifdef DEBUG_LINUX 520 printf("linux_sys_arch_prctl: unexpected code %d\n", 521 SCARG(uap, code)); 522 #endif 523 return EINVAL; 524 } 525 526 return 0; 527 } 528 529 const int linux_vsyscall_to_syscall[] = { 530 LINUX_SYS_gettimeofday, 531 LINUX_SYS_time, 532 LINUX_SYS_nosys, 533 LINUX_SYS_nosys, 534 }; 535 536 int 537 linux_usertrap(struct lwp *l, vaddr_t trapaddr, void *arg) 538 { 539 struct trapframe *tf = arg; 540 uint64_t retaddr; 541 int vsyscallnr; 542 543 /* 544 * Check for a vsyscall. %rip must be the fault address, 545 * and the address must be in the Linux vsyscall area. 546 * Also, vsyscalls are only done at 1024-byte boundaries. 547 */ 548 549 if (__predict_true(trapaddr < LINUX_VSYSCALL_START)) 550 return 0; 551 552 if (trapaddr != tf->tf_rip) 553 return 0; 554 555 if ((tf->tf_rip & (LINUX_VSYSCALL_SIZE - 1)) != 0) 556 return 0; 557 558 vsyscallnr = (tf->tf_rip - LINUX_VSYSCALL_START) / LINUX_VSYSCALL_SIZE; 559 560 if (vsyscallnr > LINUX_VSYSCALL_MAXNR) 561 return 0; 562 563 /* 564 * Get the return address from the top of the stack, 565 * and fix up the return address. 566 * This assumes the faulting instruction was callq *reg, 567 * which is the only way that vsyscalls are ever entered. 568 */ 569 if (copyin((void *)tf->tf_rsp, &retaddr, sizeof retaddr) != 0) 570 return 0; 571 tf->tf_rip = retaddr; 572 tf->tf_rax = linux_vsyscall_to_syscall[vsyscallnr]; 573 tf->tf_rsp += 8; /* "pop" the return address */ 574 575 #if 0 576 printf("usertrap: rip %p rsp %p retaddr %p vsys %d sys %d\n", 577 (void *)tf->tf_rip, (void *)tf->tf_rsp, (void *)retaddr, 578 vsyscallnr, (int)tf->tf_rax); 579 #endif 580 581 (*l->l_proc->p_md.md_syscall)(tf); 582 583 return 1; 584 } 585
Indexes created Tue Sep 30 20:09:53 GMT 2025