| 1 | ; $Id: kmoddeps.mac 62476 2016-07-22 18:23:50Z vboxsync $
|
|---|
| 2 | ;; @file
|
|---|
| 3 | ; Assembly macros for generating Solaris kernel module dependencies
|
|---|
| 4 | ;
|
|---|
| 5 |
|
|---|
| 6 | ;
|
|---|
| 7 | ; Copyright (C) 2012-2016 Oracle Corporation
|
|---|
| 8 | ;
|
|---|
| 9 | ; This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | ; available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | ; you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | ; General Public License (GPL) as published by the Free Software
|
|---|
| 13 | ; Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | ; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | ; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | ;
|
|---|
| 17 | ; The contents of this file may alternatively be used under the terms
|
|---|
| 18 | ; of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | ; (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | ; VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | ; CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | ;
|
|---|
| 23 | ; You may elect to license modified versions of this file under the
|
|---|
| 24 | ; terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | ;
|
|---|
| 26 |
|
|---|
| 27 | ; Solaris kernel modules use non-standard ELF constructions to express inter-
|
|---|
| 28 | ; module dependencies, namely a DT_NEEDED tag inside a relocatable ELF file.
|
|---|
| 29 | ; The Solaris linker can generate these automatically; since yasm can't
|
|---|
| 30 | ; produce an ELF file which quite fits Solaris's requirements we create one
|
|---|
| 31 | ; manually using flat binary output format. In order to save unnecessary
|
|---|
| 32 | ; repetition, this file defines macros for the repetitive bits which can be
|
|---|
| 33 | ; reused by the actual dependency objects. Certainly not the nicest way to
|
|---|
| 34 | ; get the effect we want, but probably a reasonable compromise between
|
|---|
| 35 | ; cleanness and required effort.
|
|---|
| 36 | ;
|
|---|
| 37 |
|
|---|
| 38 | %ifdef RT_ARCH_AMD64
|
|---|
| 39 |
|
|---|
| 40 | BITS 64
|
|---|
| 41 | ;;
|
|---|
| 42 | ; Native word size
|
|---|
| 43 | %define DNAT dq
|
|---|
| 44 |
|
|---|
| 45 | ;;
|
|---|
| 46 | ; ELF machine number for the current architecture.
|
|---|
| 47 | %define EM_CUR 62 ; EM_X86_64
|
|---|
| 48 |
|
|---|
| 49 | ;;
|
|---|
| 50 | ; ELF header class for the current architecture.
|
|---|
| 51 | %define CLASS 2
|
|---|
| 52 |
|
|---|
| 53 | %else
|
|---|
| 54 |
|
|---|
| 55 | BITS 32
|
|---|
| 56 | %define DNAT dd
|
|---|
| 57 | %define EM_CUR 3 ; EM_386
|
|---|
| 58 | %define CLASS 1
|
|---|
| 59 |
|
|---|
| 60 | %endif
|
|---|
| 61 |
|
|---|
| 62 | ;;
|
|---|
| 63 | ; ELF file header, section tables and shared string table for the dependency
|
|---|
| 64 | ; object.
|
|---|
| 65 | %macro kmoddeps_header 0
|
|---|
| 66 | elf_hdr: ; elfxx_hdr structure
|
|---|
| 67 | db 7fh, "ELF" ; e_ident
|
|---|
| 68 | db CLASS, 1, 1 ; e_ident
|
|---|
| 69 | times 9 db 0 ; padding
|
|---|
| 70 | dw 1 ; e_type ET_REL
|
|---|
| 71 | dw EM_CUR ; e_machine
|
|---|
| 72 | dd 1 ; e_version EV_CURRENT
|
|---|
| 73 | DNAT 0 ; e_entry
|
|---|
| 74 | DNAT 0 ; e_phoff
|
|---|
| 75 | DNAT sect_hdr - $$ ; e_shoff
|
|---|
| 76 | dd 0 ; e_flags
|
|---|
| 77 | dw elf_hsize ; e_ehsize
|
|---|
| 78 | dw 0 ; e_phentsize
|
|---|
| 79 | dw 0 ; e_phnum
|
|---|
| 80 | dw sect_hsize ; e_shentsize
|
|---|
| 81 | dw 4 ; e_shnum
|
|---|
| 82 | dw 1 ; e_shstrndx section .shstrtab
|
|---|
| 83 | elf_hsize equ $ - elf_hdr
|
|---|
| 84 |
|
|---|
| 85 | sect_hdr: ; elfxx_shdr structure
|
|---|
| 86 | times sect_hsize db 0 ; undefined section
|
|---|
| 87 |
|
|---|
| 88 | sect_hdr1:
|
|---|
| 89 | dd str_shstrtab ; sh_name .shstrtab
|
|---|
| 90 | dd 3 ; sh_type SHT_STRTAB
|
|---|
| 91 | DNAT 20h ; sh_flags SHF_STRINGS
|
|---|
| 92 | DNAT 0 ; sh_addr
|
|---|
| 93 | DNAT shstrtab - $$ ; sh_offset
|
|---|
| 94 | DNAT shstrtab_size ; sh_size
|
|---|
| 95 | dd 0 ; sh_link
|
|---|
| 96 | dd 0 ; sh_info
|
|---|
| 97 | DNAT 1 ; sh_addralign
|
|---|
| 98 | DNAT 0 ; sh_entsize
|
|---|
| 99 | sect_hsize equ $ - sect_hdr1
|
|---|
| 100 |
|
|---|
| 101 | dd str_dynstr ; sh_name .dynstr
|
|---|
| 102 | dd 3 ; sh_type SHT_STRTAB
|
|---|
| 103 | DNAT 20h ; sh_flags SHF_STRINGS
|
|---|
| 104 | DNAT 0 ; sh_addr
|
|---|
| 105 | DNAT dynstr - $$ ; sh_offset
|
|---|
| 106 | DNAT dynstr_size ; sh_size
|
|---|
| 107 | dd 0 ; sh_link
|
|---|
| 108 | dd 0 ; sh_info
|
|---|
| 109 | DNAT 1 ; sh_addralign
|
|---|
| 110 | DNAT 0 ; sh_entsize
|
|---|
| 111 |
|
|---|
| 112 | dd str_dynamic ; sh_name .dynamic
|
|---|
| 113 | dd 6 ; sh_type SHT_DYNAMIC
|
|---|
| 114 | DNAT 1 ; sh_flags SHF_WRITE
|
|---|
| 115 | DNAT 0 ; sh_addr
|
|---|
| 116 | DNAT dynamic - $$ ; sh_offset
|
|---|
| 117 | DNAT dynamic_size ; sh_size
|
|---|
| 118 | dd 2 ; sh_link .dynstr
|
|---|
| 119 | dd 0 ; sh_info
|
|---|
| 120 | DNAT 8 ; sh_addralign
|
|---|
| 121 | DNAT 0 ; sh_entsize
|
|---|
| 122 |
|
|---|
| 123 | shstrtab:
|
|---|
| 124 | str_shstrtab equ $ - shstrtab
|
|---|
| 125 | db ".shstrtab", 0
|
|---|
| 126 | str_dynstr equ $ - shstrtab
|
|---|
| 127 | db ".dynstr", 0
|
|---|
| 128 | str_dynamic equ $ - shstrtab
|
|---|
| 129 | db ".dynamic", 0
|
|---|
| 130 | shstrtab_size equ $ - shstrtab
|
|---|
| 131 | %endmacro ; kmoddeps_header
|
|---|
| 132 |
|
|---|
| 133 | ;;
|
|---|
| 134 | ; Start of the .dynstr section for the dependency object.
|
|---|
| 135 | %macro kmoddeps_dynstr_start 0
|
|---|
| 136 | dynstr:
|
|---|
| 137 | db 0
|
|---|
| 138 | %endmacro
|
|---|
| 139 |
|
|---|
| 140 | ;;
|
|---|
| 141 | ; A .dynstr string entry for the dependency object.
|
|---|
| 142 | ; The parameters are a symbolic name for the string and the string itself.
|
|---|
| 143 | %macro kmoddeps_dynstr_string 2
|
|---|
| 144 | dynstr_name_%1 equ $ - dynstr
|
|---|
| 145 | db %2, 0
|
|---|
| 146 | %endmacro
|
|---|
| 147 |
|
|---|
| 148 | ;;
|
|---|
| 149 | ; End of the .dynstr section for the dependency object.
|
|---|
| 150 | %macro kmoddeps_dynstr_end 0
|
|---|
| 151 | dynstr_size equ $ - dynstr
|
|---|
| 152 | %endmacro
|
|---|
| 153 |
|
|---|
| 154 | ;;
|
|---|
| 155 | ; Start of the .dynamic section for the dependency object.
|
|---|
| 156 | %macro kmoddeps_dynamic_start 0
|
|---|
| 157 | dynamic:
|
|---|
| 158 | %endmacro
|
|---|
| 159 |
|
|---|
| 160 | ;;
|
|---|
| 161 | ; A .dynamic DT_NEEDED entry for the dependency object.
|
|---|
| 162 | ; The parameter is a symbolic string name previously defined using
|
|---|
| 163 | ; @a kmoddeps_dynstr_string.
|
|---|
| 164 | %macro kmoddeps_dynamic_needed 1
|
|---|
| 165 | DNAT 1 ; DT_NEEDED
|
|---|
| 166 | DNAT dynstr_name_%1
|
|---|
| 167 | %endmacro
|
|---|
| 168 |
|
|---|
| 169 | ;;
|
|---|
| 170 | ; End of the .dynamic section for the dependency object.
|
|---|
| 171 | %macro kmoddeps_dynamic_end 0
|
|---|
| 172 | DNAT 1ah ; DT_FLAGS
|
|---|
| 173 | DNAT 4 ; TEXTREL
|
|---|
| 174 | DNAT 6ffffffbh ; DT_FLAGS1
|
|---|
| 175 | DNAT 0
|
|---|
| 176 | DNAT 601900h ; SUNW_STRPAD
|
|---|
| 177 | DNAT 200h
|
|---|
| 178 | DNAT 601b00h ; SUNW_LDMACH
|
|---|
| 179 | DNAT 62 ; EM_X86_64
|
|---|
| 180 | times 22 DNAT 0 ; padding
|
|---|
| 181 | dynamic_size equ $ - dynamic
|
|---|
| 182 | %endmacro ; kmoddeps_dynamic_end
|
|---|
| 183 |
|
|---|
