First attempt at an Amiga boot sector, not yet working.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33535 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
François Revol
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SubDir HAIKU_TOP src system boot platform amiga_m68k ;
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SubDirHdrs $(HAIKU_TOP) headers private kernel boot platform $(TARGET_BOOT_PLATFORM) ;
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UsePrivateHeaders [ FDirName kernel boot platform $(TARGET_BOOT_PLATFORM) ] ;
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UsePrivateHeaders [ FDirName kernel platform $(TARGET_BOOT_PLATFORM) ] ;
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UsePrivateHeaders [ FDirName kernel disk_device_manager ] ;
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UsePrivateHeaders [ FDirName graphics common ] ;
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#UsePrivateHeaders [ FDirName graphics vesa ] ;
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UsePrivateHeaders [ FDirName storage ] ;
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{
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local defines = _BOOT_MODE ;
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defines = [ FDefines $(defines) ] ;
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SubDirCcFlags $(defines) -Wall -Wno-multichar ;
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SubDirC++Flags $(defines) -Wall -Wno-multichar -fno-rtti ;
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}
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#SEARCH_SOURCE += [ FDirName $(HAIKU_TOP) src add-ons accelerants common ] ;
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KernelMergeObject boot_platform_amiga_m68k_shell.o :
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shell.S
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: -Wa,--pcrel
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;
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# cpu-specific stuff
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# should be moved to boot/arch/m68k/...
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# XXX: add 020+68851 support
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KernelMergeObject boot_arch_m68k_030.o :
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mmu_030.cpp
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: -fno-pic -Wno-unused -m68030
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;
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KernelMergeObject boot_arch_m68k_040.o :
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mmu_040.cpp
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: -fno-pic -Wno-unused -m68040
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;
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KernelMergeObject boot_arch_m68k_060.o :
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mmu_060.cpp
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: -fno-pic -Wno-unused -m68060
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;
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KernelMergeObject boot_platform_amiga_m68k_other.o :
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# shell.S
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start.c
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toscalls.c
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debug.c
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#bios.S
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console.cpp
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#serial.cpp
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Handle.cpp
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devices.cpp
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keyboard.cpp
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menu.cpp
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mmu.cpp
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cpu.cpp
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#smp.cpp
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#smp_trampoline.S
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# support.S
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video.cpp
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#apm.cpp
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# generic
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text_menu.cpp
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# VESA/DDC EDID
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#decode_edid.c
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#dump_edid.c
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: -fno-pic #-Wa,--pcrel
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;
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KernelMergeObject boot_platform_amiga_m68k.o :
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: :
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boot_platform_amiga_m68k_shell.o
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boot_platform_amiga_m68k_other.o
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boot_arch_m68k_030.o
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boot_arch_m68k_040.o
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;
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# AUTO folder PRG target
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# based on KernelLd
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rule AtariBootPrgLd
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{
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# AtariBootPrgLd <name> : <objs> : <linkerscript> : <args> ;
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LINK on $(1) = $(TARGET_LD) ;
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LINKFLAGS on $(1) = $(4) ;
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if $(3) { LINKFLAGS on $(1) += --script=$(3) ; }
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# Remove any preset LINKLIBS
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LINKLIBS on $(1) = ;
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# TODO: Do we really want to invoke SetupKernel here? The objects should
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# have been compiled with KernelObjects anyway, so we're doing that twice.
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SetupKernel $(2) ;
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# Show that we depend on the libraries we need
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LocalClean clean : $(1) ;
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LocalDepends all : $(1) ;
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Depends $(1) : $(2) ;
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MakeLocateDebug $(1) ;
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}
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actions AtariBootPrgLd
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{
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$(LINK) $(LINKFLAGS) -o "$(1)" "$(2)" $(LINKLIBS) ;
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}
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AtariBootPrgLd haiku.prg :
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boot_loader_$(TARGET_BOOT_PLATFORM)
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: $(HAIKU_TOP)/src/system/ldscripts/$(TARGET_ARCH)/boot_prg_$(TARGET_BOOT_PLATFORM).ld
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: -Bstatic
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;
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SEARCH on [ FGristFiles text_menu.cpp ]
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= [ FDirName $(HAIKU_TOP) src system boot platform generic ] ;
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# Tell the build system to where stage1.bin can be found, so it can be used
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# elsewhere.
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SEARCH on stage1.bin = $(SUBDIR) ;
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# cf pxe_ia32 Jamfile for stage1
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@@ -0,0 +1,166 @@
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/*
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* Copyright 2009, François Revol, revol@free.fr.
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*/
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#define FUNCTION(x) .global x; .type x,@function; x
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/*
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* stage1 boot code for AmigaDOS for use as boot block of HDD partitions.
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*
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* cf.
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* http://wandel.ca/homepage/execdis/virus_disassembly.txt
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* http://ciarang.com/wiki/page/Minimal_Amiga_Boot_Code
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*
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* x86:
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* The offset of the partition in 512 byte blocks must be written at
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* position PARTITION_OFFSET_OFFSET (32 bit little endian; makebootable does
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* that) or otherwise the code can't find the partition.
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* The partition must be a BFS formatted. The file "system/haiku_loader"
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* (the stage 2 boot loader) loaded into memory at 0x1000:0x0000 (linear address
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* 0x10000) and entered at 0x:1000:0x0200 with parameters eax - partition offset
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* in 512 byte blocks and dl - BIOS ID of the boot drive.
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*
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* Compile via:
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*
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* jam -q '<build>fixup_amiga_boot_checksum'
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* generated.m68k/cross-tools/bin/m68k-unknown-haiku-gcc -nostdlib -fpic -Wa,--pcrel -c -o stage1.o src/system/boot/platform/amiga_m68k/stage1.S
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* generated-m68k/cross-tools/bin/m68k-unknown-haiku-ld --oformat binary -o stage1.bin stage1.o
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* generated-m68k/objects/linux/x86/release/tools/fixup_amiga_boot_checksum/fixup_amiga_boot_checksum stage1.bin
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* generated.m68k/cross-tools/bin/m68k-unknown-haiku-ld -o stage1.prg stage1.o -T src/system/boot/platform/atari_m68k/prg.ld
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*
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* Add to image:
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* dd if=/dev/zero bs=512 count=$((80*2*11)) of=df0.adf
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* dd if=stage1.bin bs=512 conv=notrunc of=df0.adf
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*
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*/
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// 1 enabled verbose output
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//#define DEBUG 1
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#define BOOT_BLOCK_START_ADDRESS 0x7c00
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#define STACK_ADDRESS BOOT_BLOCK_START_ADDRESS
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#define READ_BUFFER_STACK STACK_ADDRESS - 0x2000
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#define PARTITION_OFFSET_OFFSET 506
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#define BFS_SUPERBLOCK_OFFSET 512
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// BFS definitions
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#define SUPER_BLOCK_MAGIC1 '1SFB' ; nasm reverses '...' consts
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#define SUPER_BLOCK_MAGIC2 0xdd121031
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#define SUPER_BLOCK_MAGIC3 0x15b6830e
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#define INODE_MAGIC1 0x3bbe0ad9
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#define NUM_DIRECT_BLOCKS 12
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#define S_IFMT 00000170000o
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#define S_IFDIR 00000040000o
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// AmigaDOS calls
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// dos.library
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#define _OldOpenLibrary -0x198
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#define _CloseLibrary -0x19e
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_floppy_entry:
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.ascii "DOS"
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.byte 0
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_floppy_checksum:
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.long 0
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_floppy_osversion: // ??
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//.long 0x370
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.long 0x09D5A859 // dos private ???
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_floppy_boot:
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// seems like a6 is already set to ExecBase when called from the ROM ?
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// copy it
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lea _execbase(%pc),%a2
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move %a6,(%a2)
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lea dosname_boot(%pc),%a1
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jsr _OldOpenLibrary(%a6)
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lea _dosbase(%pc),%a2
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move %d0,(%a2)
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lea dosname_boot(%pc),%a1
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jsr -0x60(%a6) // FindResident()
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tst.l %d0
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beq.s _floppy_err
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move.l %d0,%a0
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move.l 0x16(%a0),%a0
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moveq #0,%d0
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rts
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_floppy_err:
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moveq #-1,%d0
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rts
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dosname_boot:
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.ascii "dos.library"
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.byte 0
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window_name:
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.ascii "CON:0/0/640/255/plop\0"
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_execbase:
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.long 0
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_dosbase:
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.long 0
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end_buff:
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// equ *-_floppy_entry
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.dcb.b (1024)-(end_buff-_floppy_entry),0
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#if 0
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//XXX: atari stuff here
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// NOTE: normal programs (.prg) run as user mode,
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// while boot sector is chained in supervisor mode.
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// this means using Super(SUP_INQUIRE) we can know
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// from the same entry point if we were run from boot code or prg.
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//Pterm0
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//move.w #1,%d0
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//trap #1
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//rts
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lea.l str,%a0
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.loopt:
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move.b (%a0)+,%d0
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beq .strout
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bsr putc
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bra .loopt
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.strout:
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//Pterm0
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move.w #1,%d0
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trap #1
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rts
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.loop:
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move #'.',%d0
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bsr putc
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bra .loop
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rts
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/* prints the char in d0.b to the console */
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putc:
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movem.l %a0,-(%sp)
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move.w %d0,-(%sp)
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move.w #DEV_CON,-(%sp) // DEV_CON
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move.w #3,-(%sp) // Bconout
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trap #13
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add.l #6,%sp
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movem.l (%sp)+,%a0
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rts
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str:
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.ascii "Haiku!"
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.byte 0
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#endif
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