mirror of
https://github.com/limine-bootloader/limine
synced 2024-11-23 00:51:54 +03:00
misc: Initial 3-stage bootloader work
This commit is contained in:
mintsuki
parent
5d75f5213c
commit
524829370d
12
Makefile
12
Makefile
@ -10,12 +10,15 @@ PATH := $(shell pwd)/toolchain/bin:$(PATH)
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all: limine-install
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limine-install: limine-install.c limine.o
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$(CC) $(CFLAGS) -std=c11 limine.o limine-install.c -o limine-install
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limine-install: limine-install.c limine.o limine_sys.o
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$(CC) $(CFLAGS) -std=c11 limine.o limine_sys.o limine-install.c -o limine-install
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limine.o: limine.bin
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$(OBJCOPY) -B i8086 -I binary -O default limine.bin limine.o
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limine_sys.o: limine.bin
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$(OBJCOPY) -B i8086 -I binary -O default limine.sys limine_sys.o
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clean:
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rm -f limine.o limine-install
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@ -28,6 +31,7 @@ bootloader: stage2 decompressor
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cd bootsect && nasm bootsect.asm -fbin -o ../limine.bin
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cd pxeboot && nasm bootsect.asm -fbin -o ../limine-pxe.bin
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cp stage2/stage2.map ./
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cp stage2/stage3.bin ./limine.sys
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bootloader-clean: stage2-clean decompressor-clean test-clean
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rm -f stage2/stage2.bin.gz test/stage2.map test.hdd
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@ -72,8 +76,8 @@ echfs-test: test.hdd bootloader | all
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echfs-utils -g -p0 test.hdd import stage2.map boot/stage2.map
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echfs-utils -g -p0 test.hdd import test/test.elf boot/test.elf
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echfs-utils -g -p0 test.hdd import test/bg.bmp boot/bg.bmp
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echfs-utils -g -p0 test.hdd import test/font.bin boot/font.bin
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./limine-install test.hdd
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./limine-install ./ test.hdd
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echfs-utils -g -p0 test.hdd import ./limine.sys boot/limine.sys
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qemu-system-x86_64 -net none -smp 4 -enable-kvm -cpu host -hda test.hdd -debugcon stdio
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ext2-test: test.hdd bootloader | all
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@ -260,34 +260,53 @@ static bool _device_write(const void *buffer, uint64_t loc, size_t count) {
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} while (0)
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extern uint8_t _binary_limine_bin_start[], _binary_limine_bin_end[];
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extern uint8_t _binary_limine_sys_start[], _binary_limine_sys_end[];
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int main(int argc, char *argv[]) {
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int ok = 1;
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uint8_t *bootloader_img = _binary_limine_bin_start;
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size_t bootloader_file_size =
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(size_t)_binary_limine_bin_end - (size_t)_binary_limine_bin_start;
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uint8_t *stage3_img = _binary_limine_sys_start;
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size_t stage3_file_size =
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(size_t)_binary_limine_sys_end - (size_t)_binary_limine_sys_start;
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uint8_t orig_mbr[70], timestamp[6];
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char *limine_sys_path = NULL;
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int limine_sys = -1;
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if (sizeof(off_t) != 8) {
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fprintf(stderr, "ERROR: off_t type is not 64-bit.\n");
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goto cleanup;
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}
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if (argc > 1 && strstr(argv[1], "limine.bin") != NULL) {
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fprintf(stderr,
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"WARNING: Passing the bootloader binary as a file argument is\n"
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" deprecated and should be avoided in the future.\n");
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argc--;
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argv[1] = argv[0];
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argv++;
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}
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if (argc < 2) {
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printf("Usage: %s <device> [GPT partition index]\n", argv[0]);
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if (argc < 3) {
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printf("Usage: %s <boot directory> <device> [GPT partition index]\n", argv[0]);
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goto cleanup;
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}
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device = open(argv[1], O_RDWR);
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#define MAX_STAGE3_PATH 1024
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limine_sys_path = malloc(MAX_STAGE3_PATH);
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if (limine_sys_path == NULL) {
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perror("ERROR");
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goto cleanup;
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}
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snprintf(limine_sys_path, MAX_STAGE3_PATH, "%s/limine.sys", argv[1]);
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limine_sys = creat(limine_sys_path, 0644);
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if (limine_sys == -1) {
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perror("ERROR");
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goto cleanup;
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}
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if (write(limine_sys, stage3_img, stage3_file_size) !=
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(ssize_t)stage3_file_size) {
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perror("ERROR");
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goto cleanup;
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}
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device = open(argv[2], O_RDWR);
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if (device == -1) {
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perror("ERROR");
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goto cleanup;
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@ -483,6 +502,10 @@ cleanup:
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free(cache);
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if (device != -1)
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close(device);
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if (limine_sys_path != NULL)
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free(limine_sys_path);
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if (limine_sys != -1)
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close(limine_sys);
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return ok;
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}
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BIN
limine-pxe.bin
BIN
limine-pxe.bin
Binary file not shown.
BIN
limine.bin
BIN
limine.bin
Binary file not shown.
BIN
limine.sys
Normal file
BIN
limine.sys
Normal file
Binary file not shown.
BIN
stage2.map
BIN
stage2.map
Binary file not shown.
@ -2,6 +2,7 @@ CC = i386-elf-gcc
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LD = i386-elf-gcc
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OBJCOPY = i386-elf-objcopy
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OBJDUMP = i386-elf-objdump
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READELF = i386-elf-readelf
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LIMINE_VERSION := $(shell git branch --show-current | sed 's/-branch//')
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WERROR = -Werror
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@ -44,13 +45,19 @@ ASM_FILES := $(shell find ./ -type f -name '*.asm' | sort)
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OBJ := $(ASM_FILES:.asm=.o) $(C_FILES:.c=.o)
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HEADER_DEPS := $(C_FILES:.c=.d)
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all: stage2.map stage2.bin
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all: stage2.map stage2.bin stage3.bin
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stage2.bin: stages.bin
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dd if=stages.bin bs=$$(( 0x$$($(READELF) -S stage2.elf | grep .stage3 | sed 's/^.*] //' | awk '{print $$3}' | sed 's/^0*//') - 0x8000 )) count=1 of=$@
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stage3.bin: stages.bin
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dd if=stages.bin bs=$$(( 0x$$($(READELF) -S stage2.elf | grep .stage3 | sed 's/^.*] //' | awk '{print $$3}' | sed 's/^0*//') - 0x8000 )) skip=1 of=$@
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stage2.map: stage2.elf
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./gensyms.sh $(OBJDUMP)
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nasm symlist.gen -f bin -o $@
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stage2.bin: stage2.elf
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stages.bin: stage2.elf
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$(OBJCOPY) -O binary $< $@
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stage2.elf: $(OBJ)
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@ -65,4 +72,4 @@ stage2.elf: $(OBJ)
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nasm $< -f elf32 -o $@
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clean:
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rm -f symlist.gen stage2.map stage2.bin stage2.elf $(OBJ) $(HEADER_DEPS)
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rm -f symlist.gen stage2.map stage2.bin stage2.elf stage3.bin $(OBJ) $(HEADER_DEPS)
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@ -17,9 +17,9 @@
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#define VGA_FONT_GLYPHS 256
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#define VGA_FONT_MAX (VGA_FONT_HEIGHT * VGA_FONT_GLYPHS)
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static uint8_t *vga_font;
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stage3_data static uint8_t *vga_font;
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static void vga_font_retrieve(void) {
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stage3_text static void vga_font_retrieve(void) {
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struct rm_regs r = {0};
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r.eax = 0x1130;
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@ -31,37 +31,37 @@ static void vga_font_retrieve(void) {
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memcpy(vga_font, (void *)rm_desegment(r.es, r.ebp), VGA_FONT_MAX);
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}
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static uint32_t ansi_colours[8];
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stage3_data static uint32_t ansi_colours[8];
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static struct vbe_framebuffer_info fbinfo;
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static uint32_t *vbe_framebuffer;
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static uint16_t vbe_pitch;
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static uint16_t vbe_width;
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static uint16_t vbe_height;
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static uint16_t vbe_bpp;
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stage3_data static struct vbe_framebuffer_info fbinfo;
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stage3_data static uint32_t *vbe_framebuffer;
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stage3_data static uint16_t vbe_pitch;
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stage3_data static uint16_t vbe_width;
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stage3_data static uint16_t vbe_height;
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stage3_data static uint16_t vbe_bpp;
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static int frame_height, frame_width;
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stage3_data static int frame_height, frame_width;
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static struct image *background;
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stage3_data static struct image *background;
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static struct vbe_char *grid;
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static struct vbe_char *front_grid;
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stage3_data static struct vbe_char *grid;
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stage3_data static struct vbe_char *front_grid;
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static bool double_buffer_enabled = false;
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stage3_data static bool double_buffer_enabled = false;
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static bool cursor_status = true;
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stage3_data static bool cursor_status = true;
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static int cursor_x;
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static int cursor_y;
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stage3_data static int cursor_x;
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stage3_data static int cursor_y;
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static uint32_t cursor_fg = 0x00000000;
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static uint32_t cursor_bg = 0x00ffffff;
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static uint32_t text_fg;
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static uint32_t text_bg;
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stage3_data static uint32_t cursor_fg = 0x00000000;
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stage3_data static uint32_t cursor_bg = 0x00ffffff;
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stage3_data static uint32_t text_fg;
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stage3_data static uint32_t text_bg;
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static int rows;
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static int cols;
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static int margin_gradient;
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stage3_data static int rows;
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stage3_data static int cols;
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stage3_data static int margin_gradient;
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#define A(rgb) (uint8_t)(rgb >> 24)
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#define R(rgb) (uint8_t)(rgb >> 16)
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@ -69,7 +69,7 @@ static int margin_gradient;
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#define B(rgb) (uint8_t)(rgb)
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#define ARGB(a, r, g, b) (a << 24) | ((r & 0xFF) << 16) | ((g & 0xFF) << 8) | (b & 0xFF)
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static inline uint32_t colour_blend(uint32_t fg, uint32_t bg) {
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stage3_text static inline uint32_t colour_blend(uint32_t fg, uint32_t bg) {
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unsigned alpha = 255 - A(fg);
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unsigned inv_alpha = A(fg) + 1;
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@ -80,19 +80,19 @@ static inline uint32_t colour_blend(uint32_t fg, uint32_t bg) {
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return ARGB(0, r, g, b);
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}
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void vbe_plot_px(int x, int y, uint32_t hex) {
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stage3_text void vbe_plot_px(int x, int y, uint32_t hex) {
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size_t fb_i = x + (vbe_pitch / sizeof(uint32_t)) * y;
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vbe_framebuffer[fb_i] = hex;
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}
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static void _vbe_plot_bg_blent_px(int x, int y, uint32_t hex) {
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stage3_text static void _vbe_plot_bg_blent_px(int x, int y, uint32_t hex) {
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vbe_plot_px(x, y, colour_blend(hex, background->get_pixel(background, x, y)));
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}
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void (*vbe_plot_bg_blent_px)(int x, int y, uint32_t hex) = vbe_plot_px;
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stage3_data void (*vbe_plot_bg_blent_px)(int x, int y, uint32_t hex) = vbe_plot_px;
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static uint32_t blend_gradient_from_box(int x, int y, uint32_t hex) {
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stage3_text static uint32_t blend_gradient_from_box(int x, int y, uint32_t hex) {
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if (x >= frame_width && x < frame_width + VGA_FONT_WIDTH * cols
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&& y >= frame_height && y < frame_height + VGA_FONT_HEIGHT * rows) {
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return hex;
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@ -133,7 +133,7 @@ static uint32_t blend_gradient_from_box(int x, int y, uint32_t hex) {
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return colour_blend((hex & 0xffffff) | (new_alpha << 24), bg_px);
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}
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void vbe_plot_background(int x, int y, int width, int height) {
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stage3_text void vbe_plot_background(int x, int y, int width, int height) {
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if (background) {
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for (int yy = 0; yy < height; yy++) {
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for (int xx = 0; xx < width; xx++) {
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@ -149,7 +149,7 @@ void vbe_plot_background(int x, int y, int width, int height) {
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}
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}
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void vbe_plot_rect(int x, int y, int width, int height, uint32_t hex) {
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stage3_text void vbe_plot_rect(int x, int y, int width, int height, uint32_t hex) {
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for (int yy = 0; yy < height; yy++) {
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for (int xx = 0; xx < width; xx++) {
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vbe_plot_px(x + xx, y + yy, hex);
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@ -157,7 +157,7 @@ void vbe_plot_rect(int x, int y, int width, int height, uint32_t hex) {
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}
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}
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void vbe_plot_bg_blent_rect(int x, int y, int width, int height, uint32_t hex) {
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stage3_text void vbe_plot_bg_blent_rect(int x, int y, int width, int height, uint32_t hex) {
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for (int yy = 0; yy < height; yy++) {
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for (int xx = 0; xx < width; xx++) {
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vbe_plot_bg_blent_px(x + xx, y + yy, hex);
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@ -171,7 +171,7 @@ struct vbe_char {
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uint32_t bg;
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};
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void vbe_plot_char(struct vbe_char *c, int x, int y) {
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stage3_text void vbe_plot_char(struct vbe_char *c, int x, int y) {
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uint8_t *glyph = &vga_font[(size_t)c->c * VGA_FONT_HEIGHT];
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vbe_plot_bg_blent_rect(x, y, VGA_FONT_WIDTH, VGA_FONT_HEIGHT, c->bg);
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@ -184,7 +184,7 @@ void vbe_plot_char(struct vbe_char *c, int x, int y) {
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}
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}
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static void plot_char_grid(struct vbe_char *c, int x, int y) {
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stage3_text static void plot_char_grid(struct vbe_char *c, int x, int y) {
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if (!double_buffer_enabled) {
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vbe_plot_char(c, x * VGA_FONT_WIDTH + frame_width,
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y * VGA_FONT_HEIGHT + frame_height);
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@ -192,14 +192,14 @@ static void plot_char_grid(struct vbe_char *c, int x, int y) {
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grid[x + y * cols] = *c;
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}
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static void clear_cursor(void) {
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stage3_text static void clear_cursor(void) {
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struct vbe_char c = grid[cursor_x + cursor_y * cols];
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c.fg = text_fg;
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c.bg = text_bg;
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plot_char_grid(&c, cursor_x, cursor_y);
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}
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static void draw_cursor(void) {
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stage3_text static void draw_cursor(void) {
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if (cursor_status) {
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struct vbe_char c = grid[cursor_x + cursor_y * cols];
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c.fg = cursor_fg;
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@ -208,7 +208,7 @@ static void draw_cursor(void) {
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}
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}
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static void scroll(void) {
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stage3_text static void scroll(void) {
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clear_cursor();
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for (int i = cols; i < rows * cols; i++) {
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@ -227,7 +227,7 @@ static void scroll(void) {
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draw_cursor();
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}
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void vbe_clear(bool move) {
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stage3_text void vbe_clear(bool move) {
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clear_cursor();
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struct vbe_char empty;
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@ -246,37 +246,37 @@ void vbe_clear(bool move) {
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draw_cursor();
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}
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void vbe_enable_cursor(void) {
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stage3_text void vbe_enable_cursor(void) {
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cursor_status = true;
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draw_cursor();
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}
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void vbe_disable_cursor(void) {
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stage3_text void vbe_disable_cursor(void) {
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clear_cursor();
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cursor_status = false;
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}
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void vbe_set_cursor_pos(int x, int y) {
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stage3_text void vbe_set_cursor_pos(int x, int y) {
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clear_cursor();
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cursor_x = x;
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cursor_y = y;
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draw_cursor();
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}
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void vbe_get_cursor_pos(int *x, int *y) {
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stage3_text void vbe_get_cursor_pos(int *x, int *y) {
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*x = cursor_x;
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*y = cursor_y;
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}
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void vbe_set_text_fg(int fg) {
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stage3_text void vbe_set_text_fg(int fg) {
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text_fg = ansi_colours[fg];
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}
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void vbe_set_text_bg(int bg) {
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stage3_text void vbe_set_text_bg(int bg) {
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text_bg = ansi_colours[bg];
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}
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void vbe_double_buffer_flush(void) {
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stage3_text void vbe_double_buffer_flush(void) {
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for (size_t i = 0; i < (size_t)rows * cols; i++) {
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if (!memcmp(&grid[i], &front_grid[i], sizeof(struct vbe_char)))
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continue;
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@ -291,7 +291,7 @@ void vbe_double_buffer_flush(void) {
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}
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}
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void vbe_double_buffer(bool state) {
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stage3_text void vbe_double_buffer(bool state) {
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if (state) {
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memcpy(front_grid, grid, rows * cols * sizeof(struct vbe_char));
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double_buffer_enabled = true;
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@ -308,7 +308,7 @@ void vbe_double_buffer(bool state) {
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}
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}
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void vbe_putchar(uint8_t c) {
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stage3_text void vbe_putchar(uint8_t c) {
|
||||
switch (c) {
|
||||
case '\b':
|
||||
if (cursor_x || cursor_y) {
|
||||
@ -354,7 +354,7 @@ void vbe_putchar(uint8_t c) {
|
||||
}
|
||||
}
|
||||
|
||||
bool vbe_tty_init(int *_rows, int *_cols, uint32_t *_colours, int _margin, int _margin_gradient, struct image *_background) {
|
||||
stage3_text bool vbe_tty_init(int *_rows, int *_cols, uint32_t *_colours, int _margin, int _margin_gradient, struct image *_background) {
|
||||
int req_width = 0, req_height = 0, req_bpp = 0;
|
||||
|
||||
char *menu_resolution = config_get_value(NULL, 0, "MENU_RESOLUTION");
|
||||
@ -495,7 +495,7 @@ struct vbe_mode_info_struct {
|
||||
uint8_t reserved2[189];
|
||||
} __attribute__((packed));
|
||||
|
||||
static void get_vbe_info(struct vbe_info_struct *buf) {
|
||||
stage3_text static void get_vbe_info(struct vbe_info_struct *buf) {
|
||||
struct rm_regs r = {0};
|
||||
|
||||
r.eax = 0x4f00;
|
||||
@ -503,7 +503,7 @@ static void get_vbe_info(struct vbe_info_struct *buf) {
|
||||
rm_int(0x10, &r, &r);
|
||||
}
|
||||
|
||||
static void get_vbe_mode_info(struct vbe_mode_info_struct *buf,
|
||||
stage3_text static void get_vbe_mode_info(struct vbe_mode_info_struct *buf,
|
||||
uint16_t mode) {
|
||||
struct rm_regs r = {0};
|
||||
|
||||
@ -513,7 +513,7 @@ static void get_vbe_mode_info(struct vbe_mode_info_struct *buf,
|
||||
rm_int(0x10, &r, &r);
|
||||
}
|
||||
|
||||
static int set_vbe_mode(uint16_t mode) {
|
||||
stage3_text static int set_vbe_mode(uint16_t mode) {
|
||||
struct rm_regs r = {0};
|
||||
|
||||
r.eax = 0x4f02;
|
||||
@ -550,7 +550,7 @@ struct edid_info_struct {
|
||||
uint8_t checksum;
|
||||
} __attribute__((packed));
|
||||
|
||||
static int get_edid_info(struct edid_info_struct *buf) {
|
||||
stage3_text static int get_edid_info(struct edid_info_struct *buf) {
|
||||
struct rm_regs r = {0};
|
||||
|
||||
r.eax = 0x4f15;
|
||||
@ -572,13 +572,13 @@ struct resolution {
|
||||
uint16_t bpp;
|
||||
};
|
||||
|
||||
static struct resolution fallback_resolutions[] = {
|
||||
stage3_data static struct resolution fallback_resolutions[] = {
|
||||
{ 1024, 768, 32 },
|
||||
{ 800, 600, 32 },
|
||||
{ 640, 480, 32 }
|
||||
};
|
||||
|
||||
bool init_vbe(struct vbe_framebuffer_info *ret,
|
||||
stage3_text bool init_vbe(struct vbe_framebuffer_info *ret,
|
||||
uint16_t target_width, uint16_t target_height, uint16_t target_bpp) {
|
||||
print("vbe: Initialising...\n");
|
||||
|
||||
|
||||
@ -43,4 +43,7 @@ uint64_t strtoui(const char *s, const char **end, int base);
|
||||
|
||||
typedef void *symbol[];
|
||||
|
||||
#define stage3_text __attribute__((section(".stage3_text")))
|
||||
#define stage3_data __attribute__((section(".stage3_data")))
|
||||
|
||||
#endif
|
||||
|
||||
@ -16,7 +16,18 @@ bool config_ready = false;
|
||||
|
||||
static char *config_addr;
|
||||
|
||||
extern symbol stage3_addr;
|
||||
|
||||
int init_config_disk(struct volume *part) {
|
||||
struct file_handle stage3;
|
||||
|
||||
if (fopen(&stage3, part, "/limine.sys")
|
||||
&& fopen(&stage3, part, "/boot/limine.sys")) {
|
||||
panic("Could not open stage 3");
|
||||
}
|
||||
|
||||
fread(&stage3, stage3_addr, 0, stage3.size);
|
||||
|
||||
struct file_handle f;
|
||||
|
||||
if (fopen(&f, part, "/limine.cfg")
|
||||
@ -35,6 +46,12 @@ int init_config_disk(struct volume *part) {
|
||||
}
|
||||
|
||||
int init_config_pxe(void) {
|
||||
struct tftp_file_handle stage3;
|
||||
if (tftp_open(&stage3, 0, 69, "limine.sys")) {
|
||||
panic("Could not open stage 3");
|
||||
}
|
||||
tftp_read(&stage3, stage3_addr, 0, stage3.file_size);
|
||||
|
||||
struct tftp_file_handle cfg;
|
||||
if (tftp_open(&cfg, 0, 69, "limine.cfg")
|
||||
&& tftp_open(&cfg, 0, 69, "tomatboot.cfg")) {
|
||||
|
||||
@ -5,18 +5,24 @@ SECTIONS
|
||||
{
|
||||
. = 0x8000;
|
||||
|
||||
.text : {
|
||||
.entry : {
|
||||
KEEP(*(.entry*))
|
||||
KEEP(*(.realmode*))
|
||||
*(.text*)
|
||||
}
|
||||
|
||||
.rodata : {
|
||||
.realmode : {
|
||||
KEEP(*(.realmode*))
|
||||
}
|
||||
|
||||
.stage2 : {
|
||||
*(.text*)
|
||||
*(.data*)
|
||||
*(.rodata*)
|
||||
}
|
||||
|
||||
.data : {
|
||||
*(.data*)
|
||||
.stage3 : {
|
||||
stage3_addr = .;
|
||||
*(.stage3_text*)
|
||||
*(.stage3_data*)
|
||||
}
|
||||
|
||||
.bss : {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user