2002-07-10 12:13:16 +00:00
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/*-
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* Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: FreeBSD: src/sys/boot/sparc64/loader/metadata.c,v 1.6
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*/
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2004-01-04 23:21:18 +00:00
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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2002-07-10 12:13:16 +00:00
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#include <stand.h>
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#include <sys/param.h>
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#include <sys/linker.h>
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2018-02-13 03:44:50 +00:00
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#if defined(LOADER_FDT_SUPPORT)
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2015-03-09 02:57:34 +00:00
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#include <fdt_platform.h>
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2018-02-13 03:44:50 +00:00
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#endif
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2002-07-10 12:13:16 +00:00
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2018-02-15 15:01:07 +00:00
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#ifdef __arm__
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#include <machine/elf.h>
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#endif
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2002-07-10 12:13:16 +00:00
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#include <machine/metadata.h>
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#include "bootstrap.h"
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2018-02-13 03:44:50 +00:00
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#if defined(__sparc64__)
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#include <openfirm.h>
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extern struct tlb_entry *dtlb_store;
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extern struct tlb_entry *itlb_store;
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extern int dtlb_slot;
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extern int itlb_slot;
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static int
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md_bootserial(void)
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{
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char buf[64];
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ihandle_t inst;
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phandle_t input;
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phandle_t node;
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phandle_t output;
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if ((node = OF_finddevice("/options")) == -1)
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return(-1);
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if (OF_getprop(node, "input-device", buf, sizeof(buf)) == -1)
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return(-1);
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input = OF_finddevice(buf);
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if (OF_getprop(node, "output-device", buf, sizeof(buf)) == -1)
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return(-1);
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output = OF_finddevice(buf);
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if (input == -1 || output == -1 ||
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OF_getproplen(input, "keyboard") >= 0) {
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if ((node = OF_finddevice("/chosen")) == -1)
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return(-1);
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if (OF_getprop(node, "stdin", &inst, sizeof(inst)) == -1)
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return(-1);
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if ((input = OF_instance_to_package(inst)) == -1)
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return(-1);
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if (OF_getprop(node, "stdout", &inst, sizeof(inst)) == -1)
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return(-1);
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if ((output = OF_instance_to_package(inst)) == -1)
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return(-1);
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}
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if (input != output)
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return(-1);
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if (OF_getprop(input, "device_type", buf, sizeof(buf)) == -1)
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return(-1);
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if (strcmp(buf, "serial") != 0)
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return(-1);
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return(0);
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}
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#endif
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2018-05-21 01:20:19 +00:00
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static int
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2002-07-10 12:13:16 +00:00
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md_getboothowto(char *kargs)
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{
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char *cp;
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int howto;
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int active;
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2018-02-13 03:44:50 +00:00
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2002-07-10 12:13:16 +00:00
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/* Parse kargs */
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howto = 0;
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if (kargs != NULL) {
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cp = kargs;
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active = 0;
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while (*cp != 0) {
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if (!active && (*cp == '-')) {
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active = 1;
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} else if (active)
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switch (*cp) {
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case 'a':
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howto |= RB_ASKNAME;
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break;
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case 'C':
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howto |= RB_CDROM;
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break;
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case 'd':
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howto |= RB_KDB;
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break;
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case 'D':
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howto |= RB_MULTIPLE;
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break;
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case 'm':
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howto |= RB_MUTE;
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break;
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case 'g':
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howto |= RB_GDB;
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break;
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case 'h':
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howto |= RB_SERIAL;
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break;
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2005-09-22 15:06:58 +00:00
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case 'p':
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howto |= RB_PAUSE;
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break;
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2002-07-10 12:13:16 +00:00
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case 'r':
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howto |= RB_DFLTROOT;
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break;
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case 's':
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howto |= RB_SINGLE;
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break;
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case 'v':
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howto |= RB_VERBOSE;
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break;
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default:
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active = 0;
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break;
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}
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cp++;
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}
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}
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2018-02-13 03:44:50 +00:00
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2018-06-09 15:10:39 +00:00
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howto |= bootenv_flags();
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2018-02-13 03:44:50 +00:00
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#if defined(__sparc64__)
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if (md_bootserial() != -1)
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howto |= RB_SERIAL;
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#else
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2002-07-10 12:13:16 +00:00
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if (!strcmp(getenv("console"), "comconsole"))
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howto |= RB_SERIAL;
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if (!strcmp(getenv("console"), "nullconsole"))
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howto |= RB_MUTE;
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2018-02-13 03:44:50 +00:00
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#endif
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2002-07-10 12:13:16 +00:00
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return(howto);
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}
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/*
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* Copy the environment into the load area starting at (addr).
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* Each variable is formatted as <name>=<value>, with a single nul
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* separating each variable, and a double nul terminating the environment.
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*/
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2018-02-13 03:44:50 +00:00
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static vm_offset_t
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2002-07-10 12:13:16 +00:00
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md_copyenv(vm_offset_t addr)
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{
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struct env_var *ep;
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2018-02-13 03:44:50 +00:00
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2002-07-10 12:13:16 +00:00
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/* traverse the environment */
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for (ep = environ; ep != NULL; ep = ep->ev_next) {
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archsw.arch_copyin(ep->ev_name, addr, strlen(ep->ev_name));
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addr += strlen(ep->ev_name);
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archsw.arch_copyin("=", addr, 1);
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addr++;
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if (ep->ev_value != NULL) {
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archsw.arch_copyin(ep->ev_value, addr, strlen(ep->ev_value));
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addr += strlen(ep->ev_value);
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}
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archsw.arch_copyin("", addr, 1);
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addr++;
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}
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archsw.arch_copyin("", addr, 1);
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addr++;
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return(addr);
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}
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/*
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* Copy module-related data into the load area, where it can be
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* used as a directory for loaded modules.
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*
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* Module data is presented in a self-describing format. Each datum
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* is preceded by a 32-bit identifier and a 32-bit size field.
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*
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* Currently, the following data are saved:
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*
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* MOD_NAME (variable) module name (string)
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* MOD_TYPE (variable) module type (string)
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* MOD_ARGS (variable) module parameters (string)
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* MOD_ADDR sizeof(vm_offset_t) module load address
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* MOD_SIZE sizeof(size_t) module size
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* MOD_METADATA (variable) type-specific metadata
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*/
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2010-07-12 00:49:22 +00:00
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static int align;
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2002-07-10 12:13:16 +00:00
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#define COPY32(v, a, c) { \
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2018-03-13 16:33:00 +00:00
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uint32_t x = (v); \
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2002-07-10 12:13:16 +00:00
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if (c) \
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archsw.arch_copyin(&x, a, sizeof(x)); \
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a += sizeof(x); \
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}
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#define MOD_STR(t, a, s, c) { \
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COPY32(t, a, c); \
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COPY32(strlen(s) + 1, a, c) \
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if (c) \
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archsw.arch_copyin(s, a, strlen(s) + 1);\
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2010-07-12 00:49:22 +00:00
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a += roundup(strlen(s) + 1, align); \
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2002-07-10 12:13:16 +00:00
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}
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#define MOD_NAME(a, s, c) MOD_STR(MODINFO_NAME, a, s, c)
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#define MOD_TYPE(a, s, c) MOD_STR(MODINFO_TYPE, a, s, c)
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#define MOD_ARGS(a, s, c) MOD_STR(MODINFO_ARGS, a, s, c)
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#define MOD_VAR(t, a, s, c) { \
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COPY32(t, a, c); \
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COPY32(sizeof(s), a, c); \
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if (c) \
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archsw.arch_copyin(&s, a, sizeof(s)); \
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2010-07-12 00:49:22 +00:00
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a += roundup(sizeof(s), align); \
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2002-07-10 12:13:16 +00:00
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}
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#define MOD_ADDR(a, s, c) MOD_VAR(MODINFO_ADDR, a, s, c)
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#define MOD_SIZE(a, s, c) MOD_VAR(MODINFO_SIZE, a, s, c)
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#define MOD_METADATA(a, mm, c) { \
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COPY32(MODINFO_METADATA | mm->md_type, a, c);\
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COPY32(mm->md_size, a, c); \
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if (c) \
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archsw.arch_copyin(mm->md_data, a, mm->md_size);\
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2010-07-12 00:49:22 +00:00
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a += roundup(mm->md_size, align); \
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2002-07-10 12:13:16 +00:00
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}
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#define MOD_END(a, c) { \
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COPY32(MODINFO_END, a, c); \
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COPY32(0, a, c); \
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}
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2018-02-13 03:44:50 +00:00
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static vm_offset_t
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2010-07-12 00:49:22 +00:00
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md_copymodules(vm_offset_t addr, int kern64)
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2002-07-10 12:13:16 +00:00
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{
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struct preloaded_file *fp;
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struct file_metadata *md;
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2010-07-12 00:49:22 +00:00
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uint64_t scratch64;
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2018-02-28 21:51:51 +00:00
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uint32_t scratch32;
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2002-07-10 12:13:16 +00:00
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int c;
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c = addr != 0;
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/* start with the first module on the list, should be the kernel */
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for (fp = file_findfile(NULL, NULL); fp != NULL; fp = fp->f_next) {
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MOD_NAME(addr, fp->f_name, c); /* this field must come first */
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MOD_TYPE(addr, fp->f_type, c);
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if (fp->f_args)
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MOD_ARGS(addr, fp->f_args, c);
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2010-07-12 00:49:22 +00:00
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if (kern64) {
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scratch64 = fp->f_addr;
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MOD_ADDR(addr, scratch64, c);
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scratch64 = fp->f_size;
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MOD_SIZE(addr, scratch64, c);
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} else {
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2018-02-28 21:51:51 +00:00
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scratch32 = fp->f_addr;
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#ifdef __arm__
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scratch32 -= __elfN(relocation_offset);
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#endif
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MOD_ADDR(addr, scratch32, c);
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2010-07-12 00:49:22 +00:00
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MOD_SIZE(addr, fp->f_size, c);
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}
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2002-07-10 12:13:16 +00:00
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for (md = fp->f_metadata; md != NULL; md = md->md_next) {
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if (!(md->md_type & MODINFOMD_NOCOPY)) {
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MOD_METADATA(addr, md, c);
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}
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}
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}
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MOD_END(addr, c);
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return(addr);
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}
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/*
|
2018-02-13 03:44:50 +00:00
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* Load the information expected by a kernel.
|
2002-07-10 12:13:16 +00:00
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*
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* - The 'boothowto' argument is constructed
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* - The 'bootdev' argument is constructed
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* - The kernel environment is copied into kernel space.
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* - Module metadata are formatted and placed in kernel space.
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*/
|
2018-05-21 01:20:19 +00:00
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static int
|
2015-03-09 02:57:34 +00:00
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md_load_dual(char *args, vm_offset_t *modulep, vm_offset_t *dtb, int kern64)
|
2002-07-10 12:13:16 +00:00
|
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{
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struct preloaded_file *kfp;
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struct preloaded_file *xp;
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struct file_metadata *md;
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vm_offset_t kernend;
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vm_offset_t addr;
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vm_offset_t envp;
|
2018-02-13 03:44:50 +00:00
|
|
|
#if defined(LOADER_FDT_SUPPORT)
|
2015-03-09 02:57:34 +00:00
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vm_offset_t fdtp;
|
2018-02-13 03:44:50 +00:00
|
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#endif
|
2002-07-10 12:13:16 +00:00
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vm_offset_t size;
|
2010-07-12 00:49:22 +00:00
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uint64_t scratch64;
|
2002-07-10 12:13:16 +00:00
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|
|
char *rootdevname;
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int howto;
|
2018-02-15 15:01:07 +00:00
|
|
|
#ifdef __arm__
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vm_offset_t vaddr;
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int i;
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|
/*
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|
|
* These metadata addreses must be converted for kernel after
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|
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* relocation.
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|
*/
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uint32_t mdt[] = {
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|
|
MODINFOMD_SSYM, MODINFOMD_ESYM, MODINFOMD_KERNEND,
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|
|
MODINFOMD_ENVP,
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#if defined(LOADER_FDT_SUPPORT)
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|
|
MODINFOMD_DTBP
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|
#endif
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};
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|
|
#endif
|
2002-07-10 12:13:16 +00:00
|
|
|
|
2010-07-12 00:49:22 +00:00
|
|
|
align = kern64 ? 8 : 4;
|
2002-07-10 12:13:16 +00:00
|
|
|
howto = md_getboothowto(args);
|
|
|
|
|
2018-02-13 03:44:50 +00:00
|
|
|
/*
|
|
|
|
* Allow the environment variable 'rootdev' to override the supplied
|
|
|
|
* device. This should perhaps go to MI code and/or have $rootdev
|
|
|
|
* tested/set by MI code before launching the kernel.
|
2002-07-10 12:13:16 +00:00
|
|
|
*/
|
|
|
|
rootdevname = getenv("rootdev");
|
2002-11-10 19:17:36 +00:00
|
|
|
if (rootdevname == NULL)
|
2018-02-13 03:44:50 +00:00
|
|
|
rootdevname = getenv("currdev");
|
2002-07-10 12:13:16 +00:00
|
|
|
/* Try reading the /etc/fstab file to select the root device */
|
2002-11-10 19:17:36 +00:00
|
|
|
getrootmount(rootdevname);
|
2002-07-10 12:13:16 +00:00
|
|
|
|
2018-02-13 03:44:50 +00:00
|
|
|
/* Find the last module in the chain */
|
2002-07-10 12:13:16 +00:00
|
|
|
addr = 0;
|
|
|
|
for (xp = file_findfile(NULL, NULL); xp != NULL; xp = xp->f_next) {
|
|
|
|
if (addr < (xp->f_addr + xp->f_size))
|
|
|
|
addr = xp->f_addr + xp->f_size;
|
|
|
|
}
|
2018-02-13 03:44:50 +00:00
|
|
|
/* Pad to a page boundary */
|
2002-07-10 12:13:16 +00:00
|
|
|
addr = roundup(addr, PAGE_SIZE);
|
|
|
|
|
2018-02-13 03:44:50 +00:00
|
|
|
/* Copy our environment */
|
2002-07-10 12:13:16 +00:00
|
|
|
envp = addr;
|
|
|
|
addr = md_copyenv(addr);
|
|
|
|
|
2018-02-13 03:44:50 +00:00
|
|
|
/* Pad to a page boundary */
|
2002-07-10 12:13:16 +00:00
|
|
|
addr = roundup(addr, PAGE_SIZE);
|
|
|
|
|
2018-02-13 03:44:50 +00:00
|
|
|
#if defined(LOADER_FDT_SUPPORT)
|
2015-03-09 02:57:34 +00:00
|
|
|
/* Copy out FDT */
|
2018-02-13 03:44:50 +00:00
|
|
|
fdtp = 0;
|
|
|
|
#if defined(__powerpc__)
|
|
|
|
if (getenv("usefdt") != NULL)
|
|
|
|
#endif
|
|
|
|
{
|
|
|
|
size = fdt_copy(addr);
|
|
|
|
fdtp = addr;
|
|
|
|
addr = roundup(addr + size, PAGE_SIZE);
|
2015-03-09 02:57:34 +00:00
|
|
|
}
|
2018-02-13 03:44:50 +00:00
|
|
|
#endif
|
2015-03-09 02:57:34 +00:00
|
|
|
|
2002-07-10 12:13:16 +00:00
|
|
|
kernend = 0;
|
2010-07-12 00:49:22 +00:00
|
|
|
kfp = file_findfile(NULL, kern64 ? "elf64 kernel" : "elf32 kernel");
|
2003-04-30 22:00:16 +00:00
|
|
|
if (kfp == NULL)
|
|
|
|
kfp = file_findfile(NULL, "elf kernel");
|
2002-07-10 12:13:16 +00:00
|
|
|
if (kfp == NULL)
|
|
|
|
panic("can't find kernel file");
|
|
|
|
file_addmetadata(kfp, MODINFOMD_HOWTO, sizeof howto, &howto);
|
2010-07-12 00:49:22 +00:00
|
|
|
if (kern64) {
|
|
|
|
scratch64 = envp;
|
|
|
|
file_addmetadata(kfp, MODINFOMD_ENVP, sizeof scratch64, &scratch64);
|
2018-02-13 03:44:50 +00:00
|
|
|
#if defined(LOADER_FDT_SUPPORT)
|
|
|
|
if (fdtp != 0) {
|
2015-03-09 02:57:34 +00:00
|
|
|
scratch64 = fdtp;
|
|
|
|
file_addmetadata(kfp, MODINFOMD_DTBP, sizeof scratch64, &scratch64);
|
2018-02-13 03:44:50 +00:00
|
|
|
}
|
|
|
|
#endif
|
2010-07-12 00:49:22 +00:00
|
|
|
scratch64 = kernend;
|
2018-02-13 03:44:50 +00:00
|
|
|
file_addmetadata(kfp, MODINFOMD_KERNEND,
|
|
|
|
sizeof scratch64, &scratch64);
|
2010-07-12 00:49:22 +00:00
|
|
|
} else {
|
|
|
|
file_addmetadata(kfp, MODINFOMD_ENVP, sizeof envp, &envp);
|
2018-02-13 03:44:50 +00:00
|
|
|
#if defined(LOADER_FDT_SUPPORT)
|
|
|
|
if (fdtp != 0)
|
2015-03-09 02:57:34 +00:00
|
|
|
file_addmetadata(kfp, MODINFOMD_DTBP, sizeof fdtp, &fdtp);
|
2018-02-13 03:44:50 +00:00
|
|
|
#endif
|
2010-07-12 00:49:22 +00:00
|
|
|
file_addmetadata(kfp, MODINFOMD_KERNEND, sizeof kernend, &kernend);
|
|
|
|
}
|
2002-07-10 12:13:16 +00:00
|
|
|
|
2018-02-13 03:44:50 +00:00
|
|
|
#if defined(__sparc64__)
|
|
|
|
file_addmetadata(kfp, MODINFOMD_DTLB_SLOTS,
|
|
|
|
sizeof dtlb_slot, &dtlb_slot);
|
|
|
|
file_addmetadata(kfp, MODINFOMD_ITLB_SLOTS,
|
|
|
|
sizeof itlb_slot, &itlb_slot);
|
|
|
|
file_addmetadata(kfp, MODINFOMD_DTLB,
|
|
|
|
dtlb_slot * sizeof(*dtlb_store), dtlb_store);
|
|
|
|
file_addmetadata(kfp, MODINFOMD_ITLB,
|
|
|
|
itlb_slot * sizeof(*itlb_store), itlb_store);
|
|
|
|
#endif
|
|
|
|
|
2002-07-10 12:13:16 +00:00
|
|
|
*modulep = addr;
|
2010-07-12 00:49:22 +00:00
|
|
|
size = md_copymodules(0, kern64);
|
2002-07-10 12:13:16 +00:00
|
|
|
kernend = roundup(addr + size, PAGE_SIZE);
|
|
|
|
|
|
|
|
md = file_findmetadata(kfp, MODINFOMD_KERNEND);
|
2010-07-12 00:49:22 +00:00
|
|
|
if (kern64) {
|
|
|
|
scratch64 = kernend;
|
|
|
|
bcopy(&scratch64, md->md_data, sizeof scratch64);
|
|
|
|
} else {
|
|
|
|
bcopy(&kernend, md->md_data, sizeof kernend);
|
|
|
|
}
|
2018-02-13 03:44:50 +00:00
|
|
|
|
2018-02-15 15:01:07 +00:00
|
|
|
#ifdef __arm__
|
|
|
|
/* Convert addresses to the final VA */
|
|
|
|
*modulep -= __elfN(relocation_offset);
|
|
|
|
|
|
|
|
/* Do relocation fixup on metadata of each module. */
|
|
|
|
for (xp = file_findfile(NULL, NULL); xp != NULL; xp = xp->f_next) {
|
|
|
|
for (i = 0; i < nitems(mdt); i++) {
|
|
|
|
md = file_findmetadata(xp, mdt[i]);
|
|
|
|
if (md) {
|
|
|
|
bcopy(md->md_data, &vaddr, sizeof vaddr);
|
|
|
|
vaddr -= __elfN(relocation_offset);
|
|
|
|
bcopy(&vaddr, md->md_data, sizeof vaddr);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2010-07-12 00:49:22 +00:00
|
|
|
(void)md_copymodules(addr, kern64);
|
2018-02-13 03:44:50 +00:00
|
|
|
#if defined(LOADER_FDT_SUPPORT)
|
|
|
|
if (dtb != NULL)
|
|
|
|
*dtb = fdtp;
|
|
|
|
#endif
|
2002-07-10 12:13:16 +00:00
|
|
|
|
|
|
|
return(0);
|
|
|
|
}
|
2010-07-12 00:49:22 +00:00
|
|
|
|
2018-05-21 01:20:19 +00:00
|
|
|
#if !defined(__sparc64__)
|
2010-07-12 00:49:22 +00:00
|
|
|
int
|
2015-03-09 02:57:34 +00:00
|
|
|
md_load(char *args, vm_offset_t *modulep, vm_offset_t *dtb)
|
2010-07-12 00:49:22 +00:00
|
|
|
{
|
2015-03-09 02:57:34 +00:00
|
|
|
return (md_load_dual(args, modulep, dtb, 0));
|
2010-07-12 00:49:22 +00:00
|
|
|
}
|
2018-05-21 01:20:19 +00:00
|
|
|
#endif
|
2010-07-12 00:49:22 +00:00
|
|
|
|
2018-05-21 01:20:19 +00:00
|
|
|
#if defined(__mips__) || defined(__powerpc__) || defined(__sparc64__)
|
2010-07-12 00:49:22 +00:00
|
|
|
int
|
2015-03-09 02:57:34 +00:00
|
|
|
md_load64(char *args, vm_offset_t *modulep, vm_offset_t *dtb)
|
2010-07-12 00:49:22 +00:00
|
|
|
{
|
2015-03-09 02:57:34 +00:00
|
|
|
return (md_load_dual(args, modulep, dtb, 1));
|
2010-07-12 00:49:22 +00:00
|
|
|
}
|
2018-02-13 03:44:50 +00:00
|
|
|
#endif
|