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Added mmio address to example kernel

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This commit is contained in:
bzt 2018-11-25 17:29:57 +01:00
parent 02376d2074
commit c897f2602e
8 changed files with 25 additions and 19 deletions
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BIN
bootboot_spec_1st_ed.pdf
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4
mykernel/Makefile
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@ -36,14 +36,14 @@ mykernel.x86_64.elf: kernel.c
x86_64-elf-gcc $(CFLAGS) -mno-red-zone -c kernel.c -o kernel.o
x86_64-elf-ld -r -b binary -o font.o font.psf
x86_64-elf-ld -nostdlib -nostartfiles -T link.ld kernel.o font.o -o mykernel.x86_64.elf
x86_64-elf-strip -s -K fb -K bootboot -K environment mykernel.x86_64.elf
x86_64-elf-strip -s -K mmio -K fb -K bootboot -K environment mykernel.x86_64.elf
x86_64-elf-readelf -hls mykernel.x86_64.elf >mykernel.x86_64.txt
mykernel.aarch64.elf: kernel.c
aarch64-elf-gcc $(CFLAGS) -c kernel.c -o kernel.o
aarch64-elf-ld -r -b binary -o font.o font.psf
aarch64-elf-ld -nostdlib -nostartfiles -T link.ld kernel.o font.o -o mykernel.aarch64.elf
aarch64-elf-strip -s -K fb -K bootboot -K environment mykernel.aarch64.elf
aarch64-elf-strip -s -K mmio -K fb -K bootboot -K environment mykernel.aarch64.elf
aarch64-elf-readelf -hls mykernel.aarch64.elf >mykernel.aarch64.txt
clean:

2
mykernel/link.ld
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@ -28,7 +28,7 @@
*
*/
mmio = 0xfffffffffa000000;
mmio = 0xfffffffff8000000;
fb = 0xfffffffffc000000;
SECTIONS
{

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mykernel/mykernel.aarch64.elf
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5
mykernel/mykernel.aarch64.txt
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@ -10,7 +10,7 @@ ELF Header:
Version: 0x1
Entry point address: 0xffffffffffe02000
Start of program headers: 64 (bytes into file)
Start of section headers: 3760 (bytes into file)
Start of section headers: 3792 (bytes into file)
Flags: 0x0
Size of this header: 64 (bytes)
Size of program headers: 56 (bytes)
@ -29,7 +29,7 @@ Program Headers:
Segment Sections...
00 .text .got .got.plt
Symbol table '.symtab' contains 9 entries:
Symbol table '.symtab' contains 10 entries:
Num: Value Size Type Bind Vis Ndx Name
0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
1: ffffffffffe02000 0 SECTION LOCAL DEFAULT 1
@ -40,3 +40,4 @@ Symbol table '.symtab' contains 9 entries:
6: ffffffffffe01000 0 NOTYPE GLOBAL DEFAULT 1 environment
7: fffffffffc000000 0 NOTYPE GLOBAL DEFAULT ABS fb
8: ffffffffffe00000 0 NOTYPE GLOBAL DEFAULT 1 bootboot
9: fffffffff8000000 0 NOTYPE GLOBAL DEFAULT ABS mmio

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mykernel/mykernel.x86_64.elf
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28
mykernel/mykernel.x86_64.txt
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@ -10,11 +10,11 @@ ELF Header:
Version: 0x1
Entry point address: 0xffffffffffe02000
Start of program headers: 64 (bytes into file)
Start of section headers: 3512 (bytes into file)
Start of section headers: 3576 (bytes into file)
Flags: 0x0
Size of this header: 64 (bytes)
Size of program headers: 56 (bytes)
Number of program headers: 1
Number of program headers: 2
Size of section headers: 64 (bytes)
Number of section headers: 9
Section header string table index: 8
@ -22,21 +22,25 @@ ELF Header:
Program Headers:
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
LOAD 0x0000000000000078 0xffffffffffe02000 0xffffffffffe02000
0x0000000000000bf0 0x0000000000000bf0 RWE 0x8
LOAD 0x00000000000000b0 0x0000000000000000 0x0000000000000000
0x0000000000000054 0x0000000000000054 R 0x8
LOAD 0x0000000000000108 0xffffffffffe02000 0xffffffffffe02000
0x0000000000000b88 0x0000000000000b90 RWE 0x8
Section to Segment mapping:
Segment Sections...
00 .text .eh_frame .got.plt
00 .eh_frame
01 .text .got.plt .bss
Symbol table '.symtab' contains 9 entries:
Symbol table '.symtab' contains 10 entries:
Num: Value Size Type Bind Vis Ndx Name
0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
1: ffffffffffe02000 0 SECTION LOCAL DEFAULT 1
2: ffffffffffe02b70 0 SECTION LOCAL DEFAULT 2
3: ffffffffffe02bd8 0 SECTION LOCAL DEFAULT 3
4: ffffffffffe02bf0 0 SECTION LOCAL DEFAULT 4
1: 0000000000000000 0 SECTION LOCAL DEFAULT 1
2: ffffffffffe02000 0 SECTION LOCAL DEFAULT 2
3: ffffffffffe02b70 0 SECTION LOCAL DEFAULT 3
4: ffffffffffe02b88 0 SECTION LOCAL DEFAULT 4
5: 0000000000000000 0 SECTION LOCAL DEFAULT 5
6: ffffffffffe01000 0 NOTYPE GLOBAL DEFAULT 1 environment
6: ffffffffffe01000 0 NOTYPE GLOBAL DEFAULT 2 environment
7: fffffffffc000000 0 NOTYPE GLOBAL DEFAULT ABS fb
8: ffffffffffe00000 0 NOTYPE GLOBAL DEFAULT 1 bootboot
8: ffffffffffe00000 0 NOTYPE GLOBAL DEFAULT 2 bootboot
9: fffffffff8000000 0 NOTYPE GLOBAL DEFAULT ABS mmio

5
x86_64-bios/bootboot.asm
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@ -24,10 +24,11 @@
;* DEALINGS IN THE SOFTWARE.
;*
;* This file is part of the BOOTBOOT Protocol package.
;* @brief Booting code for BIOS, MultiBoot and El Torito
;* @brief Booting code for BIOS, MultiBoot, El Torito, Linux boot
;*
;* Stage2 loader, compatible with GRUB and BIOS boot specification
;* 1.0.1 (even expansion ROM) and El Torito "no emulation" CDROM boot.
;* 1.0.1 (even expansion ROM), El Torito "no emulation" CDROM boot,
;* as well as Linux boot protocol.
;*
;* memory occupied: 800-7C00
;*