| Toomas Soome | 199767f | 2015-10-25 00:06:51 +0300 | [diff] [blame^] | 1 | /*- |
| 2 | * Copyright (C) 1999 Hewlett-Packard Co. |
| 3 | * Contributed by David Mosberger <davidm@hpl.hp.com>. |
| 4 | * Copyright (C) 2005 Intel Co. |
| 5 | * Contributed by Fenghua Yu <fenghua.yu@intel.com>. |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * 3. Neither the name of Hewlett-Packard Co. nor the names of its |
| 17 | * contributors may be used to endorse or promote products derived |
| 18 | * from this software without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
| 29 | * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF |
| 30 | * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 31 | * SUCH DAMAGE. |
| 32 | */ |
| 33 | |
| 34 | /* |
| 35 | * crt0-efi-x86_64.S - x86_64 EFI startup code. |
| 36 | * $FreeBSD$ |
| 37 | */ |
| 38 | |
| 39 | .text |
| 40 | .align 4 |
| 41 | |
| 42 | .globl _start |
| 43 | _start: |
| 44 | subq $8, %rsp |
| 45 | pushq %rcx |
| 46 | pushq %rdx |
| 47 | |
| 48 | 0: |
| 49 | lea ImageBase(%rip), %rdi |
| 50 | lea _DYNAMIC(%rip), %rsi |
| 51 | |
| 52 | popq %rcx |
| 53 | popq %rdx |
| 54 | pushq %rcx |
| 55 | pushq %rdx |
| 56 | call self_reloc |
| 57 | |
| 58 | popq %rdi |
| 59 | popq %rsi |
| 60 | |
| 61 | call efi_main |
| 62 | addq $8, %rsp |
| 63 | |
| 64 | .exit: |
| 65 | ret |
| 66 | |
| 67 | /* |
| 68 | * hand-craft a dummy .reloc section so EFI knows it's a relocatable |
| 69 | * executable: |
| 70 | */ |
| 71 | |
| 72 | .data |
| 73 | .section .reloc, "a" |
| 74 | .long 0 |
| 75 | .long 10 |
| 76 | .word 0 |