mirror of
https://github.com/jart/cosmopolitan.git
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82 lines
2.9 KiB
ArmAsm
82 lines
2.9 KiB
ArmAsm
/*-*- 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 2020 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/nt/enum/status.h"
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#include "libc/dce.h"
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#include "libc/macros.internal.h"
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#ifdef __x86_64__
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// @fileoverview NTDLL.DLL Non-Mandatory Importer
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//
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// This module lets us import Microsoft's private APIs in a way
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// that ensures executables won't fail to load in the future,
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// should Microsoft ever choose to delete these APIs.
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.initro 202,_init_ntdll.1
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.type kNtdllProcRvas,@object
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kNtdllProcRvas:
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.previous/*
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...
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decentralized content
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...
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*/.initro 202,_init_ntdll.3
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.quad 0
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.previous
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.init.start 202,_init_ntdll
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push %r12
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push %r13
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lea __ntdll_not_found(%rip),%r13
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sub $32,%rsp
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xor %eax,%eax
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testb IsWindows()
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jz 7f
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loadstr "ntdll.dll",cx
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call *__imp_GetModuleHandleA(%rip)
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7: mov %rax,%r12
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0: lodsq
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test %rax,%rax
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jz 1f
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.weak __executable_start
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lea __executable_start(%rax),%rdx
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xor %eax,%eax
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testb IsWindows()
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jz 7f
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mov %r12,%rcx
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call *__imp_GetProcAddress(%rip)
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7: test %rax,%rax
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cmovz %r13,%rax
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stosq
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jmp 0b
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1: add $32,%rsp
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pop %r13
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pop %r12
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.init.end 202,_init_ntdll,globl,hidden
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.text.windows
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.ftrace1
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__ntdll_not_found:
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.ftrace2
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mov $kNtStatusDllNotFound,%eax
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ret
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.previous
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.weak __hostos
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#endif /* __x86_64__ */
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