mirror of
https://github.com/jart/cosmopolitan.git
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96 lines
3.3 KiB
ArmAsm
96 lines
3.3 KiB
ArmAsm
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/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
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│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2021 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/elf/def.h"
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#include "libc/macros.internal.h"
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// APE Loader Executable Structure
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// Linux, FreeBSD, NetBSD, OpenBSD
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.align 8
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ehdr: .ascii "\177ELF"
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.byte ELFCLASS64
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.byte ELFDATA2LSB
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.byte 1
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.byte ELFOSABI_FREEBSD
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.quad 0
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.word ET_EXEC # e_type
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.word EM_NEXGEN32E # e_machine
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.long 1 # e_version
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.quad _start # e_entry
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.quad phdrs - ehdr # e_phoff
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.quad 0 # e_shoff
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.long 0 # e_flags
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.word 64 # e_ehsize
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.word 56 # e_phentsize
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.word 3 # e_phnum
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.word 0 # e_shentsize
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.word 0 # e_shnum
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.word 0 # e_shstrndx
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.endobj ehdr,globl
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// memcpy(0x200000, loader); xor %eax,%eax; jmp 0x200000
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jg47h: .org 0x47
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.endobj jg47h
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_start: mov %rsp,%rsi
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jmp loader
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.endfn _start,globl
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.align 8
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phdrs: .long PT_LOAD # p_type
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.long PF_R|PF_X # p_flags
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.quad 0 # p_offset
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.quad ehdr # p_vaddr
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.quad ehdr # p_paddr
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.quad filesz # p_filesz
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.quad filesz # p_memsz
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.quad PAGESIZE # p_align
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.long PT_GNU_STACK # p_type
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.long PF_R|PF_W # p_flags
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.quad 0 # p_offset
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.quad 0 # p_vaddr
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.quad 0 # p_paddr
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.quad 0 # p_filesz
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.quad 0 # p_memsz
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.quad 16 # p_align
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.long PT_NOTE # p_type
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.long PF_R # p_flags
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.quad note - ehdr # p_offset
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.quad note # p_vaddr
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.quad note # p_paddr
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.quad notesize # p_filesz
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.quad notesize # p_memsz
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.quad 8 # p_align
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.endobj phdrs
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note: .long 2f-1f
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.long 4f-3f
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.long 1
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1: .asciz "OpenBSD"
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2: .align 4
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3: .long 0
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4: .long 2f-1f
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.long 4f-3f
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.long 1
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1: .asciz "NetBSD"
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2: .align 4
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3: .long 901000000
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4: .endobj note
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notesize = . - note
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