a5ffe96617
* util/i386/pc/pupa-setup.c: Include pupa/machine/kernel.h. (setup): Configure the installed partition information and the dl prefix. * loader/i386/pc/chainloader.c (my_mod): New variable. (pupa_chainloader_unload): New function. (pupa_rescue_cmd_chainloader): Refer itself. (PUPA_MOD_INIT): Save its own module in MY_MOD. * kern/i386/pc/startup.S (install_partition): Removed. (version_string): Likewise. (config_file): Likewise. (pupa_install_dos_part): New variable. (pupa_install_bsd_part): Likewise. (pupa_prefix): Likewise. (pupa_chainloader_real_boot): Call pupa_dl_unload_all. * kern/i386/pc/init.c: Include pupa/machine/kernel.h, pupa/dl.h and pupa/misc.h. (make_install_device): New function. (pupa_machine_init): Set the dl prefix. * kern/rescue.c: Include pupa/rescue.h and pupa/dl.h. (buf): Renamed to ... (linebuf): ... this. (pupa_rescue_cmd_prefix): New function. (pupa_rescue_cmd_insmod): Likewise. (pupa_rescue_cmd_rmmod): Likewise. (pupa_rescue_cmd_lsmod): Likewise. (pupa_enter_rescue_mode): Register new commands: prefix, insmod, rmmod and lsmod. * kern/mm.c (pupa_memalign): If failed even after invalidating disk caches, unload unneeded modules and retry. * kern/misc.c (pupa_memmove): New function. (pupa_memcpy): Removed. (pupa_strcpy): New function. (pupa_itoa): Made static. * kern/dl.c (pupa_dl_iterate): New function. (pupa_dl_ref): Likewise. (pupa_dl_unref): Likewise. (pupa_dl_unload): Return if succeeded or not. (pupa_dl_unload_unneeded): New function. (pupa_dl_unload_all): Likewise. (pupa_dl_init): Renamed to ... (pupa_dl_set_prefix): ... this. (pupa_dl_get_prefix): New function. * include/pupa/i386/pc/kernel.h: Include pupa/types.h. (PUPA_KERNEL_MACHINE_INSTALL_DOS_PART): New macro. (PUPA_KERNEL_MACHINE_INSTALL_BSD_PART): Likewise. (PUPA_KERNEL_MACHINE_PREFIX): Likewise. (pupa_install_dos_part): Declared. (pupa_install_bsd_part): Likewise. (pupa_prefix): Likewise. (pupa_boot_drive): Likewise. * include/pupa/types.h: Fix a typo. * include/pupa/misc.h (pupa_memcpy): New macro. Just an alias to pupa_memmove. (pupa_memmove): Declared. (pupa_strcpy): Likewise. * include/pupa/dl.h (PUPA_MOD_INIT): Change the prototype. Now pupa_mod_init takes one argument, its own module. (pupa_dl_unload_unneeded): Declared. (pupa_dl_unload_all): Likewise. (pupa_dl_ref): Likewise. (pupa_dl_unref): Likewise. (pupa_dl_iterate): Likewise. (pupa_dl_init): Renamed to ... (pupa_dl_set_prefix): ... this. (pupa_dl_get_prefix): Declared. * fs/fat.c [!PUPA_UTIL] (my_mod): New variable. (pupa_fat_dir) [!PUPA_UTIL]: Prevent the fat module from being unloaded. (pupa_fat_open) [!PUPA_UTIL]: Refer itself if succeeded. (pupa_fat_close) [!PUPA_UTIL]: Unrefer itself. * configure.ac (tmp_CFLAGS): Added -Wshadow, -Wpointer-arith, -Wmissing-prototypes, -Wundef and -Wstrict-prototypes.
143 lines
3.9 KiB
C
143 lines
3.9 KiB
C
/*
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* PUPA -- Preliminary Universal Programming Architecture for GRUB
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* Copyright (C) 2002 Yoshinori K. Okuji <okuji@enbug.org>
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*
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* This program 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 of the License, or
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* (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <pupa/kernel.h>
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#include <pupa/mm.h>
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#include <pupa/machine/init.h>
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#include <pupa/machine/memory.h>
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#include <pupa/machine/console.h>
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#include <pupa/machine/biosdisk.h>
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#include <pupa/machine/kernel.h>
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#include <pupa/types.h>
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#include <pupa/err.h>
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#include <pupa/dl.h>
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#include <pupa/misc.h>
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static char *
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make_install_device (void)
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{
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/* XXX: This should be enough. */
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char dev[100];
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pupa_sprintf (dev, "(%cd%u",
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(pupa_boot_drive & 0x80) ? 'h' : 'f',
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pupa_boot_drive & 0x7f);
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if (pupa_install_dos_part >= 0)
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pupa_sprintf (dev + pupa_strlen (dev), ",%u", pupa_install_dos_part);
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if (pupa_install_bsd_part >= 0)
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pupa_sprintf (dev + pupa_strlen (dev), ",%c", pupa_install_bsd_part + 'a');
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pupa_sprintf (dev + pupa_strlen (dev), ")%s", pupa_prefix);
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pupa_strcpy (pupa_prefix, dev);
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return pupa_prefix;
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}
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void
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pupa_machine_init (void)
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{
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pupa_uint32_t cont;
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struct pupa_machine_mmap_entry *entry
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= (struct pupa_machine_mmap_entry *) PUPA_MEMORY_MACHINE_SCRATCH_ADDR;
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pupa_size_t lower_mem = (pupa_get_memsize (0) << 10);
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pupa_addr_t end_addr = pupa_get_end_addr ();
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/* Initialize the console as early as possible. */
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pupa_console_init ();
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/* Sanity check. */
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if (lower_mem < PUPA_MEMORY_MACHINE_RESERVED_END)
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pupa_fatal ("too small memory");
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/* Turn on Gate A20 to access >1MB. */
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pupa_gate_a20 (1);
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/* Add the lower memory into free memory. */
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if (lower_mem >= PUPA_MEMORY_MACHINE_RESERVED_END)
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pupa_mm_init_region ((void *) PUPA_MEMORY_MACHINE_RESERVED_END,
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lower_mem - PUPA_MEMORY_MACHINE_RESERVED_END);
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pupa_mm_init_region ((void *) end_addr,
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PUPA_MEMORY_MACHINE_RESERVED_START - end_addr);
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/* Check if pupa_get_mmap_entry works. */
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cont = pupa_get_mmap_entry (entry, 0);
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if (entry->size)
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do
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{
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/* Avoid the lower memory. */
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if (entry->addr < 0x100000)
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{
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if (entry->len <= 0x100000 - entry->addr)
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goto next;
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entry->len -= 0x100000 - entry->addr;
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entry->addr = 0x100000;
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}
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/* Ignore >4GB. */
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if (entry->addr <= 0xFFFFFFFF && entry->type == 1)
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{
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pupa_addr_t addr;
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pupa_size_t len;
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addr = (pupa_addr_t) entry->addr;
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len = ((addr + entry->len > 0xFFFFFFFF)
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? 0xFFFFFFFF - addr
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: (pupa_size_t) entry->len);
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pupa_mm_init_region ((void *) addr, len);
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}
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next:
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if (! cont)
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break;
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cont = pupa_get_mmap_entry (entry, cont);
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}
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while (entry->size);
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else
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{
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pupa_uint32_t eisa_mmap = pupa_get_eisa_mmap ();
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if (eisa_mmap)
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{
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if ((eisa_mmap & 0xFFFF) == 0x3C00)
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pupa_mm_init_region ((void *) 0x100000,
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(eisa_mmap << 16) + 0x100000 * 15);
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else
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{
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pupa_mm_init_region ((void *) 0x100000,
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(eisa_mmap & 0xFFFF) << 10);
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pupa_mm_init_region ((void *) 0x1000000, eisa_mmap << 16);
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}
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}
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else
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pupa_mm_init_region ((void *) 0x100000,
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(pupa_size_t) pupa_get_memsize (1) << 10);
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}
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/* The memory system was initialized, thus register built-in devices. */
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pupa_biosdisk_init ();
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/* Initialize the prefix. */
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pupa_dl_set_prefix (make_install_device ());
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}
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