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2008-01-21 Robert Millan <rmh@aybabtu.com>

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* conf/i386-pc.rmk (GRUB_MEMORY_MACHINE_LINK_ADDR): New variable.
        (kernel_img_LDFLAGS): Use `GRUB_MEMORY_MACHINE_LINK_ADDR' as link
        address.
        (grub_mkimage_CFLAGS): Propagate `GRUB_MEMORY_MACHINE_LINK_ADDR' as
        a C macro.
        * include/grub/i386/pc/memory.h (GRUB_MEMORY_MACHINE_UPPER): New macro.
        Indicates start of upper memory.
        * util/i386/pc/grub-mkimage.c: Include `<grub/machine/memory.h>'.
        (generate_image): Abort when image size is big enough to corrupt
        upper memory.

        * include/grub/i386/pc/vga.h: Include `<grub/machine/memory.h>'.
        (GRUB_MEMORY_MACHINE_VGA_ADDR): Alias for `GRUB_MEMORY_MACHINE_UPPER'.
        * term/i386/pc/vga.c (VGA_MEM): Use `GRUB_MEMORY_MACHINE_VGA_ADDR'
        instead of hardcoding 0xA0000.
        * video/i386/pc/vbe.c: Include `<grub/machine/vga.h>'.
        (grub_vbe_set_video_mode): Use `GRUB_MEMORY_MACHINE_VGA_ADDR'
        instead of hardcoding 0xA0000.
This commit is contained in:
robertmh 2008-01-21 15:48:27 +00:00
parent f970b55e43
commit 261bd4bc56
8 changed files with 48 additions and 8 deletions
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21
ChangeLog
View file

@ -1,3 +1,24 @@
2008-01-21 Robert Millan <rmh@aybabtu.com>
* conf/i386-pc.rmk (GRUB_MEMORY_MACHINE_LINK_ADDR): New variable.
(kernel_img_LDFLAGS): Use `GRUB_MEMORY_MACHINE_LINK_ADDR' as link
address.
(grub_mkimage_CFLAGS): Propagate `GRUB_MEMORY_MACHINE_LINK_ADDR' as
a C macro.
* include/grub/i386/pc/memory.h (GRUB_MEMORY_MACHINE_UPPER): New macro.
Indicates start of upper memory.
* util/i386/pc/grub-mkimage.c: Include `<grub/machine/memory.h>'.
(generate_image): Abort when image size is big enough to corrupt
upper memory.
* include/grub/i386/pc/vga.h: Include `<grub/machine/memory.h>'.
(GRUB_MEMORY_MACHINE_VGA_ADDR): Alias for `GRUB_MEMORY_MACHINE_UPPER'.
* term/i386/pc/vga.c (VGA_MEM): Use `GRUB_MEMORY_MACHINE_VGA_ADDR'
instead of hardcoding 0xA0000.
* video/i386/pc/vbe.c: Include `<grub/machine/vga.h>'.
(grub_vbe_set_video_mode): Use `GRUB_MEMORY_MACHINE_VGA_ADDR'
instead of hardcoding 0xA0000.
2008-01-21 Robert Millan <rmh@aybabtu.com>
* disk/memdisk.c (memdisk_size): New variable.

5
conf/i386-pc.mk
View file

@ -1,5 +1,7 @@
# -*- makefile -*-
GRUB_MEMORY_MACHINE_LINK_ADDR = 0x8200
COMMON_ASFLAGS = -nostdinc -fno-builtin -m32
COMMON_CFLAGS = -fno-builtin -mrtd -mregparm=3 -m32
COMMON_LDFLAGS = -m32 -nostdlib
@ -183,7 +185,7 @@ kernel_img_HEADERS = arg.h boot.h cache.h device.h disk.h dl.h elf.h elfload.h \
machine/memory.h machine/loader.h machine/vga.h machine/vbe.h machine/kernel.h
kernel_img_CFLAGS = $(COMMON_CFLAGS)
kernel_img_ASFLAGS = $(COMMON_ASFLAGS)
kernel_img_LDFLAGS = $(COMMON_LDFLAGS) -Wl,-N,-Ttext,8200 $(COMMON_CFLAGS)
kernel_img_LDFLAGS = $(COMMON_LDFLAGS) -Wl,-N,-Ttext,$(GRUB_MEMORY_MACHINE_LINK_ADDR) $(COMMON_CFLAGS)
MOSTLYCLEANFILES += symlist.c kernel_syms.lst
DEFSYMFILES += kernel_syms.lst
@ -222,6 +224,7 @@ grub_mkimage-util_resolve.o: util/resolve.c $(util/resolve.c_DEPENDENCIES)
$(CC) -Iutil -I$(srcdir)/util $(CPPFLAGS) $(CFLAGS) -DGRUB_UTIL=1 $(grub_mkimage_CFLAGS) -MD -c -o $@ $<
-include grub_mkimage-util_resolve.d
grub_mkimage_CFLAGS = -DGRUB_MEMORY_MACHINE_LINK_ADDR=$(GRUB_MEMORY_MACHINE_LINK_ADDR)
grub_mkimage_LDFLAGS = $(LIBLZO)
# For grub-setup.

5
conf/i386-pc.rmk
View file

@ -1,5 +1,7 @@
# -*- makefile -*-
GRUB_MEMORY_MACHINE_LINK_ADDR = 0x8200
COMMON_ASFLAGS = -nostdinc -fno-builtin -m32
COMMON_CFLAGS = -fno-builtin -mrtd -mregparm=3 -m32
COMMON_LDFLAGS = -m32 -nostdlib
@ -42,7 +44,7 @@ kernel_img_HEADERS = arg.h boot.h cache.h device.h disk.h dl.h elf.h elfload.h \
machine/memory.h machine/loader.h machine/vga.h machine/vbe.h machine/kernel.h
kernel_img_CFLAGS = $(COMMON_CFLAGS)
kernel_img_ASFLAGS = $(COMMON_ASFLAGS)
kernel_img_LDFLAGS = $(COMMON_LDFLAGS) -Wl,-N,-Ttext,8200 $(COMMON_CFLAGS)
kernel_img_LDFLAGS = $(COMMON_LDFLAGS) -Wl,-N,-Ttext,$(GRUB_MEMORY_MACHINE_LINK_ADDR) $(COMMON_CFLAGS)
MOSTLYCLEANFILES += symlist.c kernel_syms.lst
DEFSYMFILES += kernel_syms.lst
@ -63,6 +65,7 @@ endif
# For grub-mkimage.
grub_mkimage_SOURCES = util/i386/pc/grub-mkimage.c util/misc.c \
util/resolve.c
grub_mkimage_CFLAGS = -DGRUB_MEMORY_MACHINE_LINK_ADDR=$(GRUB_MEMORY_MACHINE_LINK_ADDR)
grub_mkimage_LDFLAGS = $(LIBLZO)
# For grub-setup.

5
include/grub/i386/pc/memory.h
View file

@ -1,7 +1,7 @@
/* memory.h - describe the memory map */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2007 Free Software Foundation, Inc.
* Copyright (C) 2002,2007,2008 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -36,6 +36,9 @@
/* The size of the protect mode stack. */
#define GRUB_MEMORY_MACHINE_PROT_STACK_SIZE 0x8000
/* The upper memory area (starting at 640 kiB). */
#define GRUB_MEMORY_MACHINE_UPPER 0xa0000
/* The protected mode stack. */
#define GRUB_MEMORY_MACHINE_PROT_STACK \
(GRUB_MEMORY_MACHINE_SCRATCH_ADDR + GRUB_MEMORY_MACHINE_SCRATCH_SIZE \

6
include/grub/i386/pc/vga.h
View file

@ -1,6 +1,6 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2003,2007 Free Software Foundation, Inc.
* Copyright (C) 2003,2007,2008 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -20,6 +20,10 @@
#define GRUB_VGA_MACHINE_HEADER 1
#include <grub/symbol.h>
#include <grub/machine/memory.h>
/* The VGA (at the beginning of upper memory). */
#define GRUB_MEMORY_MACHINE_VGA_ADDR GRUB_MEMORY_MACHINE_UPPER
/* Set the video mode to MODE and return the previous mode. */
unsigned char EXPORT_FUNC(grub_vga_set_mode) (unsigned char mode);

4
term/i386/pc/vga.c
View file

@ -1,6 +1,6 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2000,2001,2002,2003,2004,2005,2007 Free Software Foundation, Inc.
* Copyright (C) 2000,2001,2002,2003,2004,2005,2007,2008 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -35,7 +35,7 @@
#define CHAR_HEIGHT 16
#define TEXT_WIDTH (VGA_WIDTH / CHAR_WIDTH)
#define TEXT_HEIGHT (VGA_HEIGHT / CHAR_HEIGHT)
#define VGA_MEM ((unsigned char *) 0xA0000)
#define VGA_MEM ((grub_uint8_t *) GRUB_MEMORY_MACHINE_VGA_ADDR)
#define PAGE_OFFSET(x) ((x) * (VGA_WIDTH * VGA_HEIGHT / 8))
#define DEFAULT_FG_COLOR 0xa

7
util/i386/pc/grub-mkimage.c
View file

@ -1,7 +1,7 @@
/* grub-mkimage.c - make a bootable image */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2003,2004,2005,2006,2007 Free Software Foundation, Inc.
* Copyright (C) 2002,2003,2004,2005,2006,2007,2008 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -21,6 +21,7 @@
#include <grub/types.h>
#include <grub/machine/boot.h>
#include <grub/machine/kernel.h>
#include <grub/machine/memory.h>
#include <grub/kernel.h>
#include <grub/disk.h>
#include <grub/util/misc.h>
@ -180,6 +181,10 @@ generate_image (const char *dir, char *prefix, FILE *out, char *mods[], char *me
= grub_cpu_to_le32 (memdisk_size);
*((grub_uint32_t *) (core_img + GRUB_KERNEL_MACHINE_COMPRESSED_SIZE))
= grub_cpu_to_le32 (core_size - GRUB_KERNEL_MACHINE_RAW_SIZE);
if (core_size > GRUB_MEMORY_MACHINE_UPPER - GRUB_MEMORY_MACHINE_LINK_ADDR)
grub_util_error ("Core image is too big (%p > %p)\n", core_size,
GRUB_MEMORY_MACHINE_UPPER - GRUB_MEMORY_MACHINE_LINK_ADDR);
grub_util_write_image (core_img, core_size, out);
free (kernel_img);

3
video/i386/pc/vbe.c
View file

@ -18,6 +18,7 @@
#include <grub/err.h>
#include <grub/machine/memory.h>
#include <grub/machine/vga.h>
#include <grub/machine/vbe.h>
#include <grub/machine/vbeblit.h>
#include <grub/machine/vbefill.h>
@ -193,7 +194,7 @@ grub_vbe_set_video_mode (grub_uint32_t mode,
if (mode < 0x100)
{
/* If this is not a VESA mode, guess address. */
framebuffer.ptr = (grub_uint8_t *) 0xA0000;
framebuffer.ptr = (grub_uint8_t *) GRUB_MEMORY_MACHINE_VGA_ADDR;
framebuffer.index_color_mode = 1;
}
else