| /* crt0-efi-x86_64.S - x86_64 EFI startup code. |
| Copyright (C) 1999 Hewlett-Packard Co. |
| Contributed by David Mosberger <davidm@hpl.hp.com>. |
| Copyright (C) 2005 Intel Co. |
| Contributed by Fenghua Yu <fenghua.yu@intel.com>. |
| |
| All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions |
| are met: |
| |
| * Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| * Redistributions in binary form must reproduce the above |
| copyright notice, this list of conditions and the following |
| disclaimer in the documentation and/or other materials |
| provided with the distribution. |
| * Neither the name of Hewlett-Packard Co. nor the names of its |
| contributors may be used to endorse or promote products derived |
| from this software without specific prior written permission. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
| CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, |
| OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
| TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF |
| THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| SUCH DAMAGE. |
| */ |
| |
| .code64 |
| .global _entry |
| .section .text._entry |
| .align 4 |
| |
| _entry: |
| push %rdi |
| |
| lea ImageBase(%rip), %rdi |
| lea _dynsym_start(%rip), %rsi |
| lea _reloc_start(%rip), %rdx |
| lea _reloc_end(%rip), %rcx |
| sub %rdx, %rcx |
| |
| call _uefi_handoff_relocate |
| |
| pop %rdi |
| mov %rdi, handoff_parameter(%rip) |
| |
| jmp handoff_common_asm |
| |
| .data |
| .global handoff_parameter |
| .align 4 |
| handoff_parameter: |
| .quad 0 |