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File: [local] / sys / arch / armish / stand / boot / exec.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:08:53 2008 UTC (16 years, 4 months ago) by nbrk
Import of OpenBSD 4.2 release kernel tree with initial code to support Jornada 720/728, StrongARM 1110-based handheld PC. At this point kernel roots on NFS and boots into vfs_mountroot() and traps. What is supported: - glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode (needs some palette tweaks for non black/white/blue colors, i think) - saic, SA11x0 interrupt controller (needs cleanup) - sacom, SA11x0 UART (supported only as boot console for now) - SA11x0 GPIO controller fully supported (but can't handle multiple interrupt handlers on one gpio pin) - sassp, SSP port on SA11x0 that attaches spibus - Jornada microcontroller (jmcu) to control kbd, battery, etc throught the SPI bus (wskbd attaches on jmcu, but not tested) - tod functions seem work - initial code for SA-1111 (chip companion) : this is TODO Next important steps, i think: - gpio and intc on sa1111 - pcmcia support for sa11x0 (and sa1111 help logic) - REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs) - root on wd0! (using already supported PCMCIA-ATA) |
/* $OpenBSD: exec.c,v 1.3 2006/07/30 21:38:12 drahn Exp $ */ /* * Copyright (c) 2006 Mark Kettenis * * 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 <sys/param.h> #include <lib/libsa/loadfile.h> #ifdef BOOT_ELF #include <sys/exec_elf.h> #endif #include <sys/reboot.h> #include <stand/boot/cmd.h> #include <machine/bootconfig.h> typedef void (*startfuncp)(void) __attribute__ ((noreturn)); void run_loadfile(u_long *marks, int howto) { #ifdef BOOT_ELF Elf_Ehdr *elf = (Elf_Ehdr *)marks[MARK_SYM]; Elf_Shdr *shp = (Elf_Shdr *)(marks[MARK_SYM] + elf->e_shoff); u_long esym = marks[MARK_END]; char *cp; int i; /* * Tell locore.S where the symbol table ends by setting * 'esym', which should be the first word in the .data * section. */ for (i = 0; i < elf->e_shnum; i++) { /* XXX Assume .data is the first writable segment. */ if (shp[i].sh_flags & SHF_WRITE) { /* XXX We have to store the virtual address. */ esym |= shp[i].sh_addr & 0xff000000; *(u_long *)(shp[i].sh_addr & 0x00ffffff) = esym; break; } } #endif cp = (char *)0x00200000 - MAX_BOOT_STRING - 1; #define BOOT_STRING_MAGIC 0x4f425344 *(int *)cp = BOOT_STRING_MAGIC; cp += sizeof(int); snprintf(cp, MAX_BOOT_STRING, "%s:%s -", cmd.bootdev, cmd.image); while (*cp != '\0') cp++; if (howto & RB_ASKNAME) *cp++ = 'a'; if (howto & RB_CONFIG) *cp++ = 'c'; if (howto & RB_KDB) *cp++ = 'd'; if (howto & RB_SINGLE) *cp++ = 's'; *cp = '\0'; (*(startfuncp)(marks[MARK_ENTRY]))(); /* NOTREACHED */ }