Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *	header.S
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *	Copyright (C) 1991, 1992 Linus Torvalds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *	Based on bootsect.S and setup.S
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  *	modified by more people than can be counted
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  *	Rewritten as a common file by H. Peter Anvin (Apr 2007)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  * BIG FAT NOTE: We're in real mode using 64k segments.  Therefore segment
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  * addresses must be multiplied by 16 to obtain their respective linear
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)  * addresses. To avoid confusion, linear addresses are written using leading
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)  * hex while segment addresses are written as segment:offset.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/pe.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <asm/segment.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <asm/boot.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <asm/page_types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include <asm/setup.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #include <asm/bootparam.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include "boot.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #include "voffset.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #include "zoffset.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) BOOTSEG		= 0x07C0		/* original address of boot-sector */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) SYSSEG		= 0x1000		/* historical load address >> 4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #ifndef SVGA_MODE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) #define SVGA_MODE ASK_VGA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) #ifndef ROOT_RDONLY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) #define ROOT_RDONLY 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	.code16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	.section ".bstext", "ax"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	.global bootsect_start
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) bootsect_start:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) #ifdef CONFIG_EFI_STUB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	# "MZ", MS-DOS header
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	.word	MZ_MAGIC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	# Normalize the start address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	ljmp	$BOOTSEG, $start2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) start2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	movw	%cs, %ax
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	movw	%ax, %ds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	movw	%ax, %es
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	movw	%ax, %ss
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	xorw	%sp, %sp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	sti
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	cld
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	movw	$bugger_off_msg, %si
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) msg_loop:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	lodsb
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	andb	%al, %al
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	jz	bs_die
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	movb	$0xe, %ah
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	movw	$7, %bx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	int	$0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	jmp	msg_loop
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) bs_die:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	# Allow the user to press a key, then reboot
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	xorw	%ax, %ax
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	int	$0x16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	int	$0x19
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	# int 0x19 should never return.  In case it does anyway,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	# invoke the BIOS reset code...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	ljmp	$0xf000,$0xfff0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) #ifdef CONFIG_EFI_STUB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	.org	0x3c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	#
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	# Offset to the PE header.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	#
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	.long	pe_header
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) #endif /* CONFIG_EFI_STUB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	.section ".bsdata", "a"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) bugger_off_msg:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	.ascii	"Use a boot loader.\r\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	.ascii	"\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	.ascii	"Remove disk and press any key to reboot...\r\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	.byte	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) #ifdef CONFIG_EFI_STUB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) pe_header:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	.long	PE_MAGIC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) coff_header:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) #ifdef CONFIG_X86_32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	.set	image_file_add_flags, IMAGE_FILE_32BIT_MACHINE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	.set	pe_opt_magic, PE_OPT_MAGIC_PE32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	.word	IMAGE_FILE_MACHINE_I386
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	.set	image_file_add_flags, 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	.set	pe_opt_magic, PE_OPT_MAGIC_PE32PLUS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	.word	IMAGE_FILE_MACHINE_AMD64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	.word	section_count			# nr_sections
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	.long	0 				# TimeDateStamp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	.long	0				# PointerToSymbolTable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	.long	1				# NumberOfSymbols
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	.word	section_table - optional_header	# SizeOfOptionalHeader
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	.word	IMAGE_FILE_EXECUTABLE_IMAGE	| \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		image_file_add_flags		| \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 		IMAGE_FILE_DEBUG_STRIPPED	| \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 		IMAGE_FILE_LINE_NUMS_STRIPPED	# Characteristics
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) optional_header:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	.word	pe_opt_magic
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	.byte	0x02				# MajorLinkerVersion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	.byte	0x14				# MinorLinkerVersion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	# Filled in by build.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	.long	0				# SizeOfCode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	.long	0				# SizeOfInitializedData
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	.long	0				# SizeOfUninitializedData
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	# Filled in by build.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	.long	0x0000				# AddressOfEntryPoint
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	.long	0x0200				# BaseOfCode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) #ifdef CONFIG_X86_32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	.long	0				# data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) extra_header_fields:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	# PE specification requires ImageBase to be 64k aligned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	.set	image_base, (LOAD_PHYSICAL_ADDR + 0xffff) & ~0xffff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) #ifdef CONFIG_X86_32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	.long	image_base			# ImageBase
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	.quad	image_base			# ImageBase
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	.long	0x20				# SectionAlignment
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	.long	0x20				# FileAlignment
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	.word	0				# MajorOperatingSystemVersion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	.word	0				# MinorOperatingSystemVersion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	.word	LINUX_EFISTUB_MAJOR_VERSION	# MajorImageVersion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	.word	LINUX_EFISTUB_MINOR_VERSION	# MinorImageVersion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	.word	0				# MajorSubsystemVersion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	.word	0				# MinorSubsystemVersion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	.long	0				# Win32VersionValue
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	#
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	# The size of the bzImage is written in tools/build.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	#
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	.long	0				# SizeOfImage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	.long	0x200				# SizeOfHeaders
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	.long	0				# CheckSum
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	.word	IMAGE_SUBSYSTEM_EFI_APPLICATION	# Subsystem (EFI application)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	.word	0				# DllCharacteristics
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) #ifdef CONFIG_X86_32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	.long	0				# SizeOfStackReserve
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	.long	0				# SizeOfStackCommit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	.long	0				# SizeOfHeapReserve
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	.long	0				# SizeOfHeapCommit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	.quad	0				# SizeOfStackReserve
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	.quad	0				# SizeOfStackCommit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	.quad	0				# SizeOfHeapReserve
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	.quad	0				# SizeOfHeapCommit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	.long	0				# LoaderFlags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	.long	(section_table - .) / 8		# NumberOfRvaAndSizes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	.quad	0				# ExportTable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	.quad	0				# ImportTable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	.quad	0				# ResourceTable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	.quad	0				# ExceptionTable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	.quad	0				# CertificationTable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	.quad	0				# BaseRelocationTable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	# Section table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) section_table:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	#
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	# The offset & size fields are filled in by build.c.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	#
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	.ascii	".setup"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	.byte	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	.byte	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	.long	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	.long	0x0				# startup_{32,64}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	.long	0				# Size of initialized data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 						# on disk
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	.long	0x0				# startup_{32,64}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	.long	0				# PointerToRelocations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	.long	0				# PointerToLineNumbers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	.word	0				# NumberOfRelocations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	.word	0				# NumberOfLineNumbers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	.long	IMAGE_SCN_CNT_CODE		| \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 		IMAGE_SCN_MEM_READ		| \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 		IMAGE_SCN_MEM_EXECUTE		| \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		IMAGE_SCN_ALIGN_16BYTES		# Characteristics
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	#
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	# The EFI application loader requires a relocation section
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	# because EFI applications must be relocatable. The .reloc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	# offset & size fields are filled in by build.c.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	#
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	.ascii	".reloc"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	.byte	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	.byte	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	.long	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	.long	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	.long	0				# SizeOfRawData
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	.long	0				# PointerToRawData
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	.long	0				# PointerToRelocations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	.long	0				# PointerToLineNumbers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	.word	0				# NumberOfRelocations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	.word	0				# NumberOfLineNumbers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	.long	IMAGE_SCN_CNT_INITIALIZED_DATA	| \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 		IMAGE_SCN_MEM_READ		| \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 		IMAGE_SCN_MEM_DISCARDABLE	| \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 		IMAGE_SCN_ALIGN_1BYTES		# Characteristics
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) #ifdef CONFIG_EFI_MIXED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	#
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	# The offset & size fields are filled in by build.c.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	#
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	.asciz	".compat"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	.long	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	.long	0x0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	.long	0				# Size of initialized data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 						# on disk
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	.long	0x0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	.long	0				# PointerToRelocations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	.long	0				# PointerToLineNumbers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	.word	0				# NumberOfRelocations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	.word	0				# NumberOfLineNumbers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	.long	IMAGE_SCN_CNT_INITIALIZED_DATA	| \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 		IMAGE_SCN_MEM_READ		| \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 		IMAGE_SCN_MEM_DISCARDABLE	| \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		IMAGE_SCN_ALIGN_1BYTES		# Characteristics
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	#
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	# The offset & size fields are filled in by build.c.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	#
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	.ascii	".text"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	.byte	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	.byte	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	.byte	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	.long	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	.long	0x0				# startup_{32,64}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	.long	0				# Size of initialized data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 						# on disk
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	.long	0x0				# startup_{32,64}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	.long	0				# PointerToRelocations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	.long	0				# PointerToLineNumbers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	.word	0				# NumberOfRelocations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	.word	0				# NumberOfLineNumbers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	.long	IMAGE_SCN_CNT_CODE		| \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 		IMAGE_SCN_MEM_READ		| \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 		IMAGE_SCN_MEM_EXECUTE		| \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 		IMAGE_SCN_ALIGN_16BYTES		# Characteristics
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 	.set	section_count, (. - section_table) / 40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) #endif /* CONFIG_EFI_STUB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	# Kernel attributes; used by setup.  This is part 1 of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	# header, from the old boot sector.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	.section ".header", "a"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	.globl	sentinel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) sentinel:	.byte 0xff, 0xff        /* Used to detect broken loaders */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 	.globl	hdr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) hdr:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) setup_sects:	.byte 0			/* Filled in by build.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) root_flags:	.word ROOT_RDONLY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) syssize:	.long 0			/* Filled in by build.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) ram_size:	.word 0			/* Obsolete */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) vid_mode:	.word SVGA_MODE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) root_dev:	.word 0			/* Filled in by build.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) boot_flag:	.word 0xAA55
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	# offset 512, entry point
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	.globl	_start
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) _start:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 		# Explicitly enter this as bytes, or the assembler
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 		# tries to generate a 3-byte jump here, which causes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 		# everything else to push off to the wrong offset.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 		.byte	0xeb		# short (2-byte) jump
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 		.byte	start_of_setup-1f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	# Part 2 of the header, from the old setup.S
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 		.ascii	"HdrS"		# header signature
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 		.word	0x020f		# header version number (>= 0x0105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 					# or else old loadlin-1.5 will fail)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 		.globl realmode_swtch
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) realmode_swtch:	.word	0, 0		# default_switch, SETUPSEG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) start_sys_seg:	.word	SYSSEG		# obsolete and meaningless, but just
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 					# in case something decided to "use" it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 		.word	kernel_version-512 # pointing to kernel version string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 					# above section of header is compatible
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 					# with loadlin-1.5 (header v1.5). Don't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 					# change it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) type_of_loader:	.byte	0		# 0 means ancient bootloader, newer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 					# bootloaders know to change this.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 					# See Documentation/x86/boot.rst for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 					# assigned ids
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) # flags, unused bits must be zero (RFU) bit within loadflags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) loadflags:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 		.byte	LOADED_HIGH	# The kernel is to be loaded high
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) setup_move_size: .word  0x8000		# size to move, when setup is not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 					# loaded at 0x90000. We will move setup
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 					# to 0x90000 then just before jumping
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 					# into the kernel. However, only the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 					# loader knows how much data behind
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 					# us also needs to be loaded.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) code32_start:				# here loaders can put a different
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 					# start address for 32-bit code.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 		.long	0x100000	# 0x100000 = default for big kernel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) ramdisk_image:	.long	0		# address of loaded ramdisk image
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 					# Here the loader puts the 32-bit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 					# address where it loaded the image.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 					# This only will be read by the kernel.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) ramdisk_size:	.long	0		# its size in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) bootsect_kludge:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 		.long	0		# obsolete
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) heap_end_ptr:	.word	_end+STACK_SIZE-512
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 					# (Header version 0x0201 or later)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 					# space from here (exclusive) down to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 					# end of setup code can be used by setup
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 					# for local heap purposes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) ext_loader_ver:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 		.byte	0		# Extended boot loader version
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) ext_loader_type:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 		.byte	0		# Extended boot loader type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) cmd_line_ptr:	.long	0		# (Header version 0x0202 or later)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 					# If nonzero, a 32-bit pointer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 					# to the kernel command line.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 					# The command line should be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 					# located between the start of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 					# setup and the end of low
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 					# memory (0xa0000), or it may
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 					# get overwritten before it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 					# gets read.  If this field is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 					# used, there is no longer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 					# anything magical about the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 					# 0x90000 segment; the setup
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 					# can be located anywhere in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 					# low memory 0x10000 or higher.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) initrd_addr_max: .long 0x7fffffff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 					# (Header version 0x0203 or later)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 					# The highest safe address for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 					# the contents of an initrd
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 					# The current kernel allows up to 4 GB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 					# but leave it at 2 GB to avoid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 					# possible bootloader bugs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) kernel_alignment:  .long CONFIG_PHYSICAL_ALIGN	#physical addr alignment
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 						#required for protected mode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 						#kernel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) #ifdef CONFIG_RELOCATABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) relocatable_kernel:    .byte 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) relocatable_kernel:    .byte 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) min_alignment:		.byte MIN_KERNEL_ALIGN_LG2	# minimum alignment
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) xloadflags:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) #ifdef CONFIG_X86_64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) # define XLF0 XLF_KERNEL_64			/* 64-bit kernel */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) # define XLF0 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) #if defined(CONFIG_RELOCATABLE) && defined(CONFIG_X86_64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399)    /* kernel/boot_param/ramdisk could be loaded above 4g */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) # define XLF1 XLF_CAN_BE_LOADED_ABOVE_4G
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) # define XLF1 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) #ifdef CONFIG_EFI_STUB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) # ifdef CONFIG_EFI_MIXED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) #  define XLF23 (XLF_EFI_HANDOVER_32|XLF_EFI_HANDOVER_64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) # else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) #  ifdef CONFIG_X86_64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) #   define XLF23 XLF_EFI_HANDOVER_64		/* 64-bit EFI handover ok */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) #  else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) #   define XLF23 XLF_EFI_HANDOVER_32		/* 32-bit EFI handover ok */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) #  endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) # endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) # define XLF23 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) #if defined(CONFIG_X86_64) && defined(CONFIG_EFI) && defined(CONFIG_KEXEC_CORE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) # define XLF4 XLF_EFI_KEXEC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) # define XLF4 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) #ifdef CONFIG_X86_64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) #ifdef CONFIG_X86_5LEVEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) #define XLF56 (XLF_5LEVEL|XLF_5LEVEL_ENABLED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) #define XLF56 XLF_5LEVEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) #define XLF56 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) 			.word XLF0 | XLF1 | XLF23 | XLF4 | XLF56
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) cmdline_size:   .long   COMMAND_LINE_SIZE-1     #length of the command line,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)                                                 #added with boot protocol
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)                                                 #version 2.06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) hardware_subarch:	.long 0			# subarchitecture, added with 2.07
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 						# default to 0 for normal x86 PC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) hardware_subarch_data:	.quad 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) payload_offset:		.long ZO_input_data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) payload_length:		.long ZO_z_input_len
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) setup_data:		.quad 0			# 64-bit physical pointer to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) 						# single linked list of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) 						# struct setup_data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) pref_address:		.quad LOAD_PHYSICAL_ADDR	# preferred load addr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) # Getting to provably safe in-place decompression is hard. Worst case
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) # behaviours need to be analyzed. Here let's take the decompression of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) # a gzip-compressed kernel as example, to illustrate it:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) # The file layout of gzip compressed kernel is:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) #    magic[2]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) #    method[1]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) #    flags[1]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) #    timestamp[4]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) #    extraflags[1]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) #    os[1]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) #    compressed data blocks[N]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) #    crc[4] orig_len[4]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) # ... resulting in +18 bytes overhead of uncompressed data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) # (For more information, please refer to RFC 1951 and RFC 1952.)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) # Files divided into blocks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) # 1 bit (last block flag)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) # 2 bits (block type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) # 1 block occurs every 32K -1 bytes or when there 50% compression
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) # has been achieved. The smallest block type encoding is always used.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) # stored:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) #    32 bits length in bytes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) # fixed:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) #    magic fixed tree.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) #    symbols.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) # dynamic:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) #    dynamic tree encoding.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) #    symbols.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) # The buffer for decompression in place is the length of the uncompressed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) # data, plus a small amount extra to keep the algorithm safe. The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) # compressed data is placed at the end of the buffer.  The output pointer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) # is placed at the start of the buffer and the input pointer is placed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) # where the compressed data starts. Problems will occur when the output
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) # pointer overruns the input pointer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) # The output pointer can only overrun the input pointer if the input
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) # pointer is moving faster than the output pointer.  A condition only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) # triggered by data whose compressed form is larger than the uncompressed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) # form.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) # The worst case at the block level is a growth of the compressed data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) # of 5 bytes per 32767 bytes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) # The worst case internal to a compressed block is very hard to figure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) # The worst case can at least be bounded by having one bit that represents
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) # 32764 bytes and then all of the rest of the bytes representing the very
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) # very last byte.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) # All of which is enough to compute an amount of extra data that is required
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) # to be safe.  To avoid problems at the block level allocating 5 extra bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) # per 32767 bytes of data is sufficient.  To avoid problems internal to a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) # block adding an extra 32767 bytes (the worst case uncompressed block size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) # is sufficient, to ensure that in the worst case the decompressed data for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) # block will stop the byte before the compressed data for a block begins.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) # To avoid problems with the compressed data's meta information an extra 18
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) # bytes are needed.  Leading to the formula:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) # extra_bytes = (uncompressed_size >> 12) + 32768 + 18
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) # Adding 8 bytes per 32K is a bit excessive but much easier to calculate.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) # Adding 32768 instead of 32767 just makes for round numbers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) # Above analysis is for decompressing gzip compressed kernel only. Up to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) # now 6 different decompressor are supported all together. And among them
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) # xz stores data in chunks and has maximum chunk of 64K. Hence safety
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) # margin should be updated to cover all decompressors so that we don't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) # need to deal with each of them separately. Please check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) # the description in lib/decompressor_xxx.c for specific information.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) # extra_bytes = (uncompressed_size >> 12) + 65536 + 128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) # LZ4 is even worse: data that cannot be further compressed grows by 0.4%,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) # or one byte per 256 bytes. OTOH, we can safely get rid of the +128 as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) # the size-dependent part now grows so fast.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) # extra_bytes = (uncompressed_size >> 8) + 65536
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) # ZSTD compressed data grows by at most 3 bytes per 128K, and only has a 22
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) # byte fixed overhead but has a maximum block size of 128K, so it needs a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) # larger margin.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) # extra_bytes = (uncompressed_size >> 8) + 131072
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) #define ZO_z_extra_bytes	((ZO_z_output_len >> 8) + 131072)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) #if ZO_z_output_len > ZO_z_input_len
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) # define ZO_z_extract_offset	(ZO_z_output_len + ZO_z_extra_bytes - \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) 				 ZO_z_input_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) # define ZO_z_extract_offset	ZO_z_extra_bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558)  * The extract_offset has to be bigger than ZO head section. Otherwise when
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559)  * the head code is running to move ZO to the end of the buffer, it will
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560)  * overwrite the head code itself.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) #if (ZO__ehead - ZO_startup_32) > ZO_z_extract_offset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) # define ZO_z_min_extract_offset ((ZO__ehead - ZO_startup_32 + 4095) & ~4095)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) # define ZO_z_min_extract_offset ((ZO_z_extract_offset + 4095) & ~4095)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) #define ZO_INIT_SIZE	(ZO__end - ZO_startup_32 + ZO_z_min_extract_offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) #define VO_INIT_SIZE	(VO__end - VO__text)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) #if ZO_INIT_SIZE > VO_INIT_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) # define INIT_SIZE ZO_INIT_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) # define INIT_SIZE VO_INIT_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) init_size:		.long INIT_SIZE		# kernel initialization size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) handover_offset:	.long 0			# Filled in by build.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) kernel_info_offset:	.long 0			# Filled in by build.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) # End of setup header #####################################################
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) 	.section ".entrytext", "ax"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) start_of_setup:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) # Force %es = %ds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) 	movw	%ds, %ax
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) 	movw	%ax, %es
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) 	cld
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) # Apparently some ancient versions of LILO invoked the kernel with %ss != %ds,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) # which happened to work by accident for the old code.  Recalculate the stack
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) # pointer if %ss is invalid.  Otherwise leave it alone, LOADLIN sets up the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) # stack behind its own code, so we can't blindly put it directly past the heap.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) 	movw	%ss, %dx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) 	cmpw	%ax, %dx	# %ds == %ss?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) 	movw	%sp, %dx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) 	je	2f		# -> assume %sp is reasonably set
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) 	# Invalid %ss, make up a new stack
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) 	movw	$_end, %dx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) 	testb	$CAN_USE_HEAP, loadflags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) 	jz	1f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) 	movw	heap_end_ptr, %dx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) 1:	addw	$STACK_SIZE, %dx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) 	jnc	2f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) 	xorw	%dx, %dx	# Prevent wraparound
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) 2:	# Now %dx should point to the end of our stack space
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) 	andw	$~3, %dx	# dword align (might as well...)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) 	jnz	3f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) 	movw	$0xfffc, %dx	# Make sure we're not zero
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) 3:	movw	%ax, %ss
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) 	movzwl	%dx, %esp	# Clear upper half of %esp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) 	sti			# Now we should have a working stack
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) # We will have entered with %cs = %ds+0x20, normalize %cs so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) # it is on par with the other segments.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) 	pushw	%ds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) 	pushw	$6f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) 	lretw
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) 6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) # Check signature at end of setup
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) 	cmpl	$0x5a5aaa55, setup_sig
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) 	jne	setup_bad
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) # Zero the bss
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) 	movw	$__bss_start, %di
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) 	movw	$_end+3, %cx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) 	xorl	%eax, %eax
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) 	subw	%di, %cx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) 	shrw	$2, %cx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) 	rep; stosl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) # Jump to C code (should not return)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) 	calll	main
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) # Setup corrupt somehow...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) setup_bad:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) 	movl	$setup_corrupt, %eax
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) 	calll	puts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) 	# Fall through...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) 	.globl	die
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) 	.type	die, @function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) die:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) 	hlt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) 	jmp	die
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) 	.size	die, .-die
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) 	.section ".initdata", "a"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) setup_corrupt:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) 	.byte	7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) 	.string	"No setup signature found...\n"