155 lines
4 KiB
C
155 lines
4 KiB
C
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/*
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* Copyright (C) 2001-2003 Hewlett-Packard Co.
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* Contributed by Stephane Eranian <eranian@hpl.hp.com>
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*
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* This file is part of the ELILO, the EFI Linux boot loader.
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*
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* ELILO is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* ELILO is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with ELILO; see the file COPYING. If not, write to the Free
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* Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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* Please check out the elilo.txt for complete documentation on how
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* to use this program.
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*/
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#include <efi.h>
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#include <efilib.h>
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#include "elilo.h"
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#include "config.h"
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#include "private.h"
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#include "sysdeps.h"
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#include "getopt.h"
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typedef struct {
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CHAR16 fpswa[FILENAME_MAXLEN];
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CHAR16 cmd_fpswa[FILENAME_MAXLEN];
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UINTN allow_relocation;
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} ia64_global_config_t;
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#define ia64_opt_offsetof(option) (&((sys_img_options_t *)(0x0))->option)
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static ia64_global_config_t ia64_gconf;
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/*
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* No IA-64 specific options at this point
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* The last entry in each table MUST be use the OPT_NULL type to terminate
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* the chain.
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*/
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config_option_t sysdeps_global_options[]={
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{OPT_FILE, OPT_GLOBAL, L"fpswa", NULL, NULL, ia64_gconf.fpswa},
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{OPT_BOOL, OPT_GLOBAL, L"relocatable", NULL, NULL, &ia64_gconf.allow_relocation},
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};
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config_option_t sysdeps_image_options[]={
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{OPT_BOOL, OPT_IMAGE_SYS, L"relocatable", NULL, NULL, ia64_opt_offsetof(allow_relocation)},
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};
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/*
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* IA-64 operations that need to be done only once and just before
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* entering the main loop of the loader
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* Return:
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* 0 if sucessful
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* -1 otherwise (will abort execution)
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*/
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INTN
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sysdeps_preloop_actions(EFI_HANDLE dev, CHAR16 **argv, INTN argc, INTN index, EFI_HANDLE image)
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{
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/*
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* we have separate string to make sure that the command line take precedence over
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* the config file
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*/
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if (ia64_gconf.cmd_fpswa[0] != CHAR_NULL) {
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check_fpswa(image, dev, ia64_gconf.cmd_fpswa);
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} else if (ia64_gconf.fpswa[0] != CHAR_NULL)
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check_fpswa(image, dev, ia64_gconf.fpswa);
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else
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check_fpswa(image, dev, NULL);
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return 0;
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}
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/*
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* Return:
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* 1: if image or global configuration allows relocation
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* 0: otherwise
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*
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* It is written has a function rather than a macro to avoid
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* exposing config data structure to the rest of the code in ia64
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*/
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INTN
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ia64_can_relocate(VOID)
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{
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return ia64_gconf.allow_relocation == TRUE
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|| (elilo_opt.sys_img_opts && elilo_opt.sys_img_opts->allow_relocation ==TRUE) ? 1 : 0;
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}
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#define IA64_CMDLINE_OPTIONS L"rF:"
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CHAR16 *
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sysdeps_get_cmdline_opts(VOID)
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{
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return IA64_CMDLINE_OPTIONS;
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}
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INTN
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sysdeps_getopt(INTN c, INTN optind, CHAR16 *optarg)
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{
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INTN ret = 0; /* let's be optimistic ! */
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/*
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* XXX: for now these command line options have to be global
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*/
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switch(c) {
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case L'r':
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ia64_gconf.allow_relocation = 1;
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break;
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case L'F':
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if (StrLen(Optarg) >= FILENAME_MAXLEN) {
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Print(L"FPSWA filename is limited to %d characters\n", FILENAME_MAXLEN);
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return -1;
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}
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StrCpy(ia64_gconf.cmd_fpswa, Optarg);
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break;
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default:
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ret = -1;
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}
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return ret;
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}
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VOID
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sysdeps_print_cmdline_opts(VOID)
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{
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Print(L"-r kernel image can be relocated if load address inexistent\n");
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Print(L"-F file name of a specific FPSWA EFI driver to load\n");
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}
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INTN
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sysdeps_register_options(VOID)
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{
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INTN ret;
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ret = register_config_options(sysdeps_global_options,
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sizeof(sysdeps_global_options)/sizeof(config_option_t),
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OPTIONS_GROUP_GLOBAL);
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if (ret == -1 ) return ret;
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ret = register_config_options(sysdeps_image_options,
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sizeof(sysdeps_image_options)/sizeof(config_option_t),
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OPTIONS_GROUP_IMAGE);
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return ret;
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}
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