crt0-efi-x86_64.S revision 1.1.1.1.4.2
1 1.1.1.1.4.2 rmind /* $NetBSD: crt0-efi-x86_64.S,v 1.1.1.1.4.2 2014/05/18 17:46:02 rmind Exp $ */ 2 1.1.1.1.4.2 rmind 3 1.1.1.1.4.2 rmind /* crt0-efi-x86_64.S - x86_64 EFI startup code. 4 1.1.1.1.4.2 rmind Copyright (C) 1999 Hewlett-Packard Co. 5 1.1.1.1.4.2 rmind Contributed by David Mosberger <davidm (at) hpl.hp.com>. 6 1.1.1.1.4.2 rmind Copyright (C) 2005 Intel Co. 7 1.1.1.1.4.2 rmind Contributed by Fenghua Yu <fenghua.yu (at) intel.com>. 8 1.1.1.1.4.2 rmind 9 1.1.1.1.4.2 rmind All rights reserved. 10 1.1.1.1.4.2 rmind 11 1.1.1.1.4.2 rmind Redistribution and use in source and binary forms, with or without 12 1.1.1.1.4.2 rmind modification, are permitted provided that the following conditions 13 1.1.1.1.4.2 rmind are met: 14 1.1.1.1.4.2 rmind 15 1.1.1.1.4.2 rmind * Redistributions of source code must retain the above copyright 16 1.1.1.1.4.2 rmind notice, this list of conditions and the following disclaimer. 17 1.1.1.1.4.2 rmind * Redistributions in binary form must reproduce the above 18 1.1.1.1.4.2 rmind copyright notice, this list of conditions and the following 19 1.1.1.1.4.2 rmind disclaimer in the documentation and/or other materials 20 1.1.1.1.4.2 rmind provided with the distribution. 21 1.1.1.1.4.2 rmind * Neither the name of Hewlett-Packard Co. nor the names of its 22 1.1.1.1.4.2 rmind contributors may be used to endorse or promote products derived 23 1.1.1.1.4.2 rmind from this software without specific prior written permission. 24 1.1.1.1.4.2 rmind 25 1.1.1.1.4.2 rmind THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 26 1.1.1.1.4.2 rmind CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 27 1.1.1.1.4.2 rmind INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 28 1.1.1.1.4.2 rmind MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 29 1.1.1.1.4.2 rmind DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 30 1.1.1.1.4.2 rmind BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 31 1.1.1.1.4.2 rmind OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 32 1.1.1.1.4.2 rmind PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 33 1.1.1.1.4.2 rmind PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 34 1.1.1.1.4.2 rmind THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 35 1.1.1.1.4.2 rmind TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 36 1.1.1.1.4.2 rmind THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 1.1.1.1.4.2 rmind SUCH DAMAGE. 38 1.1.1.1.4.2 rmind */ 39 1.1.1.1.4.2 rmind .text 40 1.1.1.1.4.2 rmind .align 4 41 1.1.1.1.4.2 rmind 42 1.1.1.1.4.2 rmind .globl _start 43 1.1.1.1.4.2 rmind _start: 44 1.1.1.1.4.2 rmind subq $8, %rsp 45 1.1.1.1.4.2 rmind pushq %rcx 46 1.1.1.1.4.2 rmind pushq %rdx 47 1.1.1.1.4.2 rmind 48 1.1.1.1.4.2 rmind 0: 49 1.1.1.1.4.2 rmind lea ImageBase(%rip), %rdi 50 1.1.1.1.4.2 rmind lea _DYNAMIC(%rip), %rsi 51 1.1.1.1.4.2 rmind 52 1.1.1.1.4.2 rmind popq %rcx 53 1.1.1.1.4.2 rmind popq %rdx 54 1.1.1.1.4.2 rmind pushq %rcx 55 1.1.1.1.4.2 rmind pushq %rdx 56 1.1.1.1.4.2 rmind call _relocate 57 1.1.1.1.4.2 rmind 58 1.1.1.1.4.2 rmind popq %rdi 59 1.1.1.1.4.2 rmind popq %rsi 60 1.1.1.1.4.2 rmind 61 1.1.1.1.4.2 rmind call efi_main 62 1.1.1.1.4.2 rmind addq $8, %rsp 63 1.1.1.1.4.2 rmind 64 1.1.1.1.4.2 rmind .exit: 65 1.1.1.1.4.2 rmind ret 66 1.1.1.1.4.2 rmind 67 1.1.1.1.4.2 rmind // hand-craft a dummy .reloc section so EFI knows it's a relocatable executable: 68 1.1.1.1.4.2 rmind 69 1.1.1.1.4.2 rmind .data 70 1.1.1.1.4.2 rmind dummy: .long 0 71 1.1.1.1.4.2 rmind 72 1.1.1.1.4.2 rmind #define IMAGE_REL_ABSOLUTE 0 73 1.1.1.1.4.2 rmind .section .reloc, "a" 74 1.1.1.1.4.2 rmind label1: 75 1.1.1.1.4.2 rmind .long dummy-label1 // Page RVA 76 1.1.1.1.4.2 rmind .long 10 // Block Size (2*4+2) 77 1.1.1.1.4.2 rmind .word (IMAGE_REL_ABSOLUTE<<12) + 0 // reloc for dummy 78 1.1.1.1.4.2 rmind 79
Indexes created Sat Nov 01 19:09:55 GMT 2025