Removed old UEFI headers
This commit is contained in:
@@ -1,85 +0,0 @@
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; crt0-efi-x86_64.S - x86_64 EFI startup code.
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; Copyright (C) 1999 Hewlett-Packard Co.
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; Contributed by David Mosberger <davidm@hpl.hp.com>.
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; Copyright (C) 2005 Intel Co.
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; Contributed by Fenghua Yu <fenghua.yu@intel.com>.
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;
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; All rights reserved.
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;
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; Redistribution and use in source and binary forms, with or without
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; modification, are permitted provided that the following conditions
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; are met:
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;
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; * Redistributions of source code must retain the above copyright
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; notice, this list of conditions and the following disclaimer.
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; * Redistributions in binary form must reproduce the above
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; copyright notice, this list of conditions and the following
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; disclaimer in the documentation and/or other materials
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; provided with the distribution.
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; * Neither the name of Hewlett-Packard Co. nor the names of its
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; contributors may be used to endorse or promote products derived
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; from this software without specific prior written permission.
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;
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; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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; CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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; INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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; MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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; DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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; BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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; OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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; TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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; THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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; SUCH DAMAGE.
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;
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; 2018-05-05 Converted to NASM syntax by Justin C. Miller
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extern ImageBase
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extern _DYNAMIC
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extern _relocate
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extern efi_main
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section .text
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align 4
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global _start
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_start:
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sub rsp, 8
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push rcx
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push rdx
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; These are already in RDI/RSI from EFI calling us, right? -justin
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;lea rdi, [ImageBase]
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;lea rsi, [_DYNAMIC]
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pop rcx
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pop rdx
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push rcx
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push rdx
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call _relocate
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pop rdi
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pop rsi
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call efi_main
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add rsp, 8
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.exit:
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ret
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; hand-craft a dummy .reloc section so EFI knows it's a relocatable executable:
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section .data
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dummy:
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dd 0
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%define IMAGE_REL_ABSOLUTE 0
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section .reloc
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label1:
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dd 0 ; Page RVA
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dd 10 ; Block Size (2*4+2)
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dw (IMAGE_REL_ABSOLUTE<<12) + 0 ; reloc for dummy
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@@ -1,97 +0,0 @@
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/* reloc_x86_64.c - position independent x86_64 ELF shared object relocator
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Copyright (C) 1999 Hewlett-Packard Co.
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Contributed by David Mosberger <davidm@hpl.hp.com>.
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Copyright (C) 2005 Intel Co.
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Contributed by Fenghua Yu <fenghua.yu@intel.com>.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the following
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disclaimer in the documentation and/or other materials
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provided with the distribution.
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* Neither the name of Hewlett-Packard Co. nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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*/
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#include <efi/efi.h>
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#include <elf.h>
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extern "C"
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EFI_STATUS _relocate (long ldbase, Elf64_Dyn *dyn,
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EFI_HANDLE image EFI_UNUSED,
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EFI_SYSTEM_TABLE *systab EFI_UNUSED)
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{
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long relsz = 0, relent = 0;
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Elf64_Rel *rel = 0;
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unsigned long *addr;
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int i;
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for (i = 0; dyn[i].d_tag != DT_NULL; ++i) {
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switch (dyn[i].d_tag) {
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case DT_RELA:
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rel = (Elf64_Rel*)
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((unsigned long)dyn[i].d_un.d_ptr
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+ ldbase);
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break;
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case DT_RELASZ:
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relsz = dyn[i].d_un.d_val;
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break;
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case DT_RELAENT:
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relent = dyn[i].d_un.d_val;
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break;
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default:
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break;
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}
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}
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if (!rel && relent == 0)
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return EFI_SUCCESS;
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if (!rel || relent == 0)
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return EFI_LOAD_ERROR;
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while (relsz > 0) {
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/* apply the relocs */
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switch (ELF64_R_TYPE (rel->r_info)) {
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case R_X86_64_NONE:
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break;
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case R_X86_64_RELATIVE:
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addr = (unsigned long *)
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(ldbase + rel->r_offset);
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*addr += ldbase;
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break;
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default:
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break;
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}
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rel = (Elf64_Rel*) ((char *) rel + relent);
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relsz -= relent;
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}
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return EFI_SUCCESS;
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}
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