/* $OpenBSD: exec.c,v 1.5 2022/08/10 12:20:05 miod Exp $ */ /* * Copyright (c) 2010 Miodrag Vallat. * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #include #include "libsa.h" #include typedef void (*program)(int32_t, int32_t, int32_t *, int32_t, uint64_t *); #define PTR_TO_CKSEG1(ptr) (int32_t)(CKSEG1_BASE | (uint64_t)(ptr)) void run_loadfile(uint64_t *marks, int howto) { int32_t newargc; int32_t *newargv; char kernelflags[8]; char *c; const char *arg; /* * Build a new commandline: * boot - */ newargc = howto == 0 ? 2 : 3; newargv = alloc(newargc * sizeof(int32_t)); if (newargv == NULL) panic("out of memory"); arg = "boot"; /* kernel needs this. */ newargv[0] = PTR_TO_CKSEG1(arg); newargv[1] = PTR_TO_CKSEG1(&pmon_bootdev); if (howto != 0) { c = kernelflags; *c++ = '-'; if (howto & RB_ASKNAME) *c++ = 'a'; if (howto & RB_CONFIG) *c++ = 'c'; if (howto & RB_KDB) *c++ = 'd'; if (howto & RB_GOODRANDOM) *c++ = 'g'; if (howto & RB_SINGLE) *c++ = 's'; *c = '\0'; newargv[2] = PTR_TO_CKSEG1(&kernelflags); } pmon_cacheflush(); (*(program)(marks[MARK_ENTRY]))(newargc, PTR_TO_CKSEG1(newargv), pmon_envp, pmon_callvec, (uint64_t *)PHYS_TO_CKSEG0(marks[MARK_END])); rd_invalidate(); _rtt(); }