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SpookyDervish
2026-01-28 09:13:12 +11:00
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77
gnu-efi/gnuefi/Makefile Normal file
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#
# Copyright (C) 1999-2001 Hewlett-Packard Co.
# Contributed by David Mosberger <davidm@hpl.hp.com>
# Contributed by Stephane Eranian <eranian@hpl.hp.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.
#
SRCDIR = .
VPATH = $(SRCDIR)
include $(SRCDIR)/../Make.defaults
TOPDIR = $(SRCDIR)/..
CDIR=$(TOPDIR)/..
FILES = reloc_$(ARCH)
OBJS = $(FILES:%=%.o)
# on aarch64, avoid jump tables before all relocations have been processed
reloc_aarch64.o: CFLAGS += -fno-jump-tables
TARGETS = crt0-efi-$(ARCH).o libgnuefi.a
all: $(TARGETS)
libgnuefi.a: $(OBJS)
$(AR) $(ARFLAGS) $@ $^
clean:
rm -f $(TARGETS) *~ *.o $(OBJS)
install:
mkdir -p $(INSTALLROOT)$(LIBDIR)
$(INSTALL) -m 644 $(TARGETS) $(INSTALLROOT)$(LIBDIR)
ifneq (,$(findstring FreeBSD,$(OS)))
ifeq ($(ARCH),x86_64)
$(INSTALL) -m 644 $(SRCDIR)/elf_$(ARCH)_fbsd_efi.lds $(INSTALLROOT)$(LIBDIR)
else
$(INSTALL) -m 644 $(SRCDIR)/elf_$(ARCH)_efi.lds $(INSTALLROOT)$(LIBDIR)
endif
else
$(INSTALL) -m 644 $(SRCDIR)/elf_$(ARCH)_efi.lds $(INSTALLROOT)$(LIBDIR)
endif
include $(SRCDIR)/../Make.rules

130
gnu-efi/gnuefi/crt0-efi-aarch64.S Normal file
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/*
* crt0-efi-aarch64.S - PE/COFF header for AArch64 EFI applications
*
* Copright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice and this list of conditions, without modification.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License as published by the Free Software Foundation;
* either version 2 of the License, or (at your option) any later version.
*/
.section .text.head
/*
* Magic "MZ" signature for PE/COFF
*/
.globl ImageBase
ImageBase:
.ascii "MZ"
.skip 58 // 'MZ' + pad + offset == 64
.long pe_header - ImageBase // Offset to the PE header.
pe_header:
.ascii "PE"
.short 0
coff_header:
.short 0xaa64 // AArch64
.short 2 // nr_sections
.long 0 // TimeDateStamp
.long 0 // PointerToSymbolTable
.long 1 // NumberOfSymbols
.short section_table - optional_header // SizeOfOptionalHeader
.short 0x206 // Characteristics.
// IMAGE_FILE_DEBUG_STRIPPED |
// IMAGE_FILE_EXECUTABLE_IMAGE |
// IMAGE_FILE_LINE_NUMS_STRIPPED
optional_header:
.short 0x20b // PE32+ format
.byte 0x02 // MajorLinkerVersion
.byte 0x14 // MinorLinkerVersion
.long _data - _start // SizeOfCode
.long _data_size // SizeOfInitializedData
.long 0 // SizeOfUninitializedData
.long _start - ImageBase // AddressOfEntryPoint
.long _start - ImageBase // BaseOfCode
extra_header_fields:
.quad 0 // ImageBase
.long 0x1000 // SectionAlignment
.long 0x200 // FileAlignment
.short 0 // MajorOperatingSystemVersion
.short 0 // MinorOperatingSystemVersion
.short 0 // MajorImageVersion
.short 0 // MinorImageVersion
.short 0 // MajorSubsystemVersion
.short 0 // MinorSubsystemVersion
.long 0 // Win32VersionValue
.long _edata - ImageBase // SizeOfImage
// Everything before the kernel image is considered part of the header
.long _start - ImageBase // SizeOfHeaders
.long 0 // CheckSum
.short EFI_SUBSYSTEM // Subsystem
.short 0 // DllCharacteristics
.quad 0 // SizeOfStackReserve
.quad 0 // SizeOfStackCommit
.quad 0 // SizeOfHeapReserve
.quad 0 // SizeOfHeapCommit
.long 0 // LoaderFlags
.long 0x6 // NumberOfRvaAndSizes
.quad 0 // ExportTable
.quad 0 // ImportTable
.quad 0 // ResourceTable
.quad 0 // ExceptionTable
.quad 0 // CertificationTable
.quad 0 // BaseRelocationTable
// Section table
section_table:
.ascii ".text\0\0\0"
.long _data - _start // VirtualSize
.long _start - ImageBase // VirtualAddress
.long _data - _start // SizeOfRawData
.long _start - ImageBase // PointerToRawData
.long 0 // PointerToRelocations (0 for executables)
.long 0 // PointerToLineNumbers (0 for executables)
.short 0 // NumberOfRelocations (0 for executables)
.short 0 // NumberOfLineNumbers (0 for executables)
.long 0x60000020 // Characteristics (section flags)
.ascii ".data\0\0\0"
.long _data_size // VirtualSize
.long _data - ImageBase // VirtualAddress
.long _data_size // SizeOfRawData
.long _data - ImageBase // PointerToRawData
.long 0 // PointerToRelocations (0 for executables)
.long 0 // PointerToLineNumbers (0 for executables)
.short 0 // NumberOfRelocations (0 for executables)
.short 0 // NumberOfLineNumbers (0 for executables)
.long 0xc0000040 // Characteristics (section flags)
.align 12
_start:
stp x29, x30, [sp, #-32]!
mov x29, sp
stp x0, x1, [sp, #16]
mov x2, x0
mov x3, x1
adr x0, ImageBase
adrp x1, _DYNAMIC
add x1, x1, #:lo12:_DYNAMIC
bl _relocate
cbnz x0, 0f
ldp x0, x1, [sp, #16]
bl efi_main
0: ldp x29, x30, [sp], #32
ret

145
gnu-efi/gnuefi/crt0-efi-arm.S Normal file
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/*
* crt0-efi-arm.S - PE/COFF header for ARM EFI applications
*
* Copright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice and this list of conditions, without modification.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License as published by the Free Software Foundation;
* either version 2 of the License, or (at your option) any later version.
*/
.section .text.head
/*
* Magic "MZ" signature for PE/COFF
*/
.globl ImageBase
ImageBase:
.ascii "MZ"
.skip 58 // 'MZ' + pad + offset == 64
.long pe_header - ImageBase // Offset to the PE header.
pe_header:
.ascii "PE"
.short 0
coff_header:
.short 0x1c2 // Mixed ARM/Thumb
.short 2 // nr_sections
.long 0 // TimeDateStamp
.long 0 // PointerToSymbolTable
.long 1 // NumberOfSymbols
.short section_table - optional_header // SizeOfOptionalHeader
.short 0x306 // Characteristics.
// IMAGE_FILE_32BIT_MACHINE |
// IMAGE_FILE_DEBUG_STRIPPED |
// IMAGE_FILE_EXECUTABLE_IMAGE |
// IMAGE_FILE_LINE_NUMS_STRIPPED
optional_header:
.short 0x10b // PE32+ format
.byte 0x02 // MajorLinkerVersion
.byte 0x14 // MinorLinkerVersion
.long _edata - _start // SizeOfCode
.long 0 // SizeOfInitializedData
.long 0 // SizeOfUninitializedData
.long _start - ImageBase // AddressOfEntryPoint
.long _start - ImageBase // BaseOfCode
.long 0 // BaseOfData
extra_header_fields:
.long 0 // ImageBase
.long 0x20 // SectionAlignment
.long 0x8 // FileAlignment
.short 0 // MajorOperatingSystemVersion
.short 0 // MinorOperatingSystemVersion
.short 0 // MajorImageVersion
.short 0 // MinorImageVersion
.short 0 // MajorSubsystemVersion
.short 0 // MinorSubsystemVersion
.long 0 // Win32VersionValue
.long _edata - ImageBase // SizeOfImage
// Everything before the kernel image is considered part of the header
.long _start - ImageBase // SizeOfHeaders
.long 0 // CheckSum
.short EFI_SUBSYSTEM // Subsystem
.short 0 // DllCharacteristics
.long 0 // SizeOfStackReserve
.long 0 // SizeOfStackCommit
.long 0 // SizeOfHeapReserve
.long 0 // SizeOfHeapCommit
.long 0 // LoaderFlags
.long 0x6 // NumberOfRvaAndSizes
.quad 0 // ExportTable
.quad 0 // ImportTable
.quad 0 // ResourceTable
.quad 0 // ExceptionTable
.quad 0 // CertificationTable
.quad 0 // BaseRelocationTable
// Section table
section_table:
/*
* The EFI application loader requires a relocation section
* because EFI applications must be relocatable. This is a
* dummy section as far as we are concerned.
*/
.ascii ".reloc"
.byte 0
.byte 0 // end of 0 padding of section name
.long 0
.long 0
.long 0 // SizeOfRawData
.long 0 // PointerToRawData
.long 0 // PointerToRelocations
.long 0 // PointerToLineNumbers
.short 0 // NumberOfRelocations
.short 0 // NumberOfLineNumbers
.long 0x42100040 // Characteristics (section flags)
.ascii ".text"
.byte 0
.byte 0
.byte 0 // end of 0 padding of section name
.long _edata - _start // VirtualSize
.long _start - ImageBase // VirtualAddress
.long _edata - _start // SizeOfRawData
.long _start - ImageBase // PointerToRawData
.long 0 // PointerToRelocations (0 for executables)
.long 0 // PointerToLineNumbers (0 for executables)
.short 0 // NumberOfRelocations (0 for executables)
.short 0 // NumberOfLineNumbers (0 for executables)
.long 0xe0500020 // Characteristics (section flags)
_start:
stmfd sp!, {r0-r2, lr}
mov r2, r0
mov r3, r1
adr r1, .L_DYNAMIC
ldr r0, [r1]
add r1, r0, r1
adr r0, ImageBase
bl _relocate
teq r0, #0
bne 0f
ldmfd sp, {r0-r1}
bl efi_main
0: add sp, sp, #12
ldr pc, [sp], #4
.L_DYNAMIC:
.word _DYNAMIC - .

76
gnu-efi/gnuefi/crt0-efi-ia32.S Normal file
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/* crt0-efi-ia32.S - x86 EFI startup code.
Copyright (C) 1999 Hewlett-Packard Co.
Contributed by David Mosberger <davidm@hpl.hp.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.
*/
.text
.align 4
.globl _start
_start:
pushl %ebp
movl %esp,%ebp
pushl 12(%ebp) # copy "image" argument
pushl 8(%ebp) # copy "systab" argument
call 0f
0: popl %eax
movl %eax,%ebx
addl $ImageBase-0b,%eax # %eax = ldbase
addl $_DYNAMIC-0b,%ebx # %ebx = _DYNAMIC
pushl %ebx # pass _DYNAMIC as second argument
pushl %eax # pass ldbase as first argument
call _relocate
popl %ebx
popl %ebx
testl %eax,%eax
jne .exit
call efi_main # call app with "image" and "systab" argument
.exit: leave
ret
// hand-craft a dummy .reloc section so EFI knows it's a relocatable executable:
.data
dummy: .long 0
#define IMAGE_REL_ABSOLUTE 0
.section .reloc
.long dummy // Page RVA
.long 10 // Block Size (2*4+2)
.word (IMAGE_REL_ABSOLUTE<<12) + 0 // reloc for dummy

87
gnu-efi/gnuefi/crt0-efi-ia64.S Normal file
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/* crt0-efi-ia64.S - IA-64 EFI startup code.
Copyright (C) 1999 Hewlett-Packard Co.
Contributed by David Mosberger <davidm@hpl.hp.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.
*/
.text
.psr abi64
.psr lsb
.lsb
.proc _start
_start:
alloc loc0=ar.pfs,2,2,2,0
mov loc1=rp
movl out0=@gprel(ImageBase) // out0 <- ImageBase (ldbase)
;;
add out0=out0,gp
movl out1=@gprel(_DYNAMIC) // out1 <- _DYNAMIC
;; // avoid WAW on CFM
add out1=out1,gp
br.call.sptk.few rp=_relocate
.Lret0:
cmp.ne p6,p0=r0,r8 // r8 == EFI_SUCCESS?
(p6) br.cond.sptk.few .exit // no ->
.Lret1:
mov out0=in0 // image handle
mov out1=in1 // systab
br.call.sptk.few rp=efi_main
.Lret2:
.exit:
mov ar.pfs=loc0
mov rp=loc1
;;
br.ret.sptk.few rp
.endp _start
// PE32+ wants a PLABEL, not the code address of the entry point:
.align 16
.global _start_plabel
.section .plabel, "a"
_start_plabel:
data8 _start
data8 __gp
// hand-craft a .reloc section for the plabel:
#define IMAGE_REL_BASED_DIR64 10
.section .reloc, "a"
data4 _start_plabel // Page RVA
data4 12 // Block Size (2*4+2*2)
data2 (IMAGE_REL_BASED_DIR64<<12) + 0 // reloc for plabel's entry point
data2 (IMAGE_REL_BASED_DIR64<<12) + 8 // reloc for plabel's global pointer

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gnu-efi/gnuefi/crt0-efi-mips64el.S Normal file
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/*
* crt0-efi-mips64el.S - PE/COFF header for MIPS64 EFI applications
*
* Copright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>
* Copright (C) 2017 Heiher <r@hev.cc>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice and this list of conditions, without modification.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License as published by the Free Software Foundation;
* either version 2 of the License, or (at your option) any later version.
*/
.section .text.head
/*
* Magic "MZ" signature for PE/COFF
*/
.globl ImageBase
ImageBase:
.ascii "MZ"
.skip 58 // 'MZ' + pad + offset == 64
.long pe_header - ImageBase // Offset to the PE header.
pe_header:
.ascii "PE"
.short 0
coff_header:
.short 0x166 // MIPS little endian
.short 2 // nr_sections
.long 0 // TimeDateStamp
.long 0 // PointerToSymbolTable
.long 1 // NumberOfSymbols
.short section_table - optional_header // SizeOfOptionalHeader
.short 0x206 // Characteristics.
// IMAGE_FILE_DEBUG_STRIPPED |
// IMAGE_FILE_EXECUTABLE_IMAGE |
// IMAGE_FILE_LINE_NUMS_STRIPPED
optional_header:
.short 0x20b // PE32+ format
.byte 0x02 // MajorLinkerVersion
.byte 0x14 // MinorLinkerVersion
.long _edata - _start // SizeOfCode
.long 0 // SizeOfInitializedData
.long 0 // SizeOfUninitializedData
.long _start - ImageBase // AddressOfEntryPoint
.long _start - ImageBase // BaseOfCode
extra_header_fields:
.quad 0 // ImageBase
.long 0x20 // SectionAlignment
.long 0x8 // FileAlignment
.short 0 // MajorOperatingSystemVersion
.short 0 // MinorOperatingSystemVersion
.short 0 // MajorImageVersion
.short 0 // MinorImageVersion
.short 0 // MajorSubsystemVersion
.short 0 // MinorSubsystemVersion
.long 0 // Win32VersionValue
.long _edata - ImageBase // SizeOfImage
// Everything before the kernel image is considered part of the header
.long _start - ImageBase // SizeOfHeaders
.long 0 // CheckSum
.short EFI_SUBSYSTEM // Subsystem
.short 0 // DllCharacteristics
.quad 0 // SizeOfStackReserve
.quad 0 // SizeOfStackCommit
.quad 0 // SizeOfHeapReserve
.quad 0 // SizeOfHeapCommit
.long 0 // LoaderFlags
.long 0x6 // NumberOfRvaAndSizes
.quad 0 // ExportTable
.quad 0 // ImportTable
.quad 0 // ResourceTable
.quad 0 // ExceptionTable
.quad 0 // CertificationTable
.quad 0 // BaseRelocationTable
// Section table
section_table:
/*
* The EFI application loader requires a relocation section
* because EFI applications must be relocatable. This is a
* dummy section as far as we are concerned.
*/
.ascii ".reloc"
.byte 0
.byte 0 // end of 0 padding of section name
.long 0
.long 0
.long 0 // SizeOfRawData
.long 0 // PointerToRawData
.long 0 // PointerToRelocations
.long 0 // PointerToLineNumbers
.short 0 // NumberOfRelocations
.short 0 // NumberOfLineNumbers
.long 0x42100040 // Characteristics (section flags)
.ascii ".text"
.byte 0
.byte 0
.byte 0 // end of 0 padding of section name
.long _edata - _start // VirtualSize
.long _start - ImageBase // VirtualAddress
.long _edata - _start // SizeOfRawData
.long _start - ImageBase // PointerToRawData
.long 0 // PointerToRelocations (0 for executables)
.long 0 // PointerToLineNumbers (0 for executables)
.short 0 // NumberOfRelocations (0 for executables)
.short 0 // NumberOfLineNumbers (0 for executables)
.long 0xe0500020 // Characteristics (section flags)
.set push
.set noreorder
.align 4
.globl _start
.ent _start
.type _start, @function
_start:
daddiu $sp, -32
sd $ra, ($sp)
// Get pc & gp
.align 3
bal 1f
sd $gp, 8($sp)
_pc:
.dword _gp
.dword _DYNAMIC
.dword _relocate
1:
// pc in ra
ld $gp, ($ra)
dli $t0, _pc
dsubu $gp, $t0
daddu $gp, $ra
sd $a0, 16($sp)
sd $a1, 24($sp)
// a2: ImageHandle
move $a2, $a0
// a3: SystemTable
move $a3, $a1
// a0: ImageBase
dli $t1, ImageBase - _pc
daddu $a0, $ra, $t1
// a1: DynamicSection
ld $t1, 8($ra)
dsubu $t1, $t0
daddu $a1, $ra, $t1
// call _relocate
ld $t1, 16($ra)
dsubu $t1, $t0
daddu $t9, $ra, $t1
jalr $t9
nop
bnez $v0, 1b
nop
// a0: ImageHandle
ld $a0, 16($sp)
// call efi_main
dla $t9, efi_main
jalr $t9
// a1: SystemTable
ld $a1, 24($sp)
1:
ld $gp, 8($sp)
ld $ra, ($sp)
jr $ra
daddiu $sp, 32
.end _start
.set pop

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gnu-efi/gnuefi/crt0-efi-x86_64.S Normal file
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/* 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.
*/
.text
.align 4
.globl _start
_start:
subq $8, %rsp
pushq %rcx
pushq %rdx
0:
lea ImageBase(%rip), %rdi
lea _DYNAMIC(%rip), %rsi
popq %rcx
popq %rdx
pushq %rcx
pushq %rdx
call _relocate
popq %rdi
popq %rsi
call efi_main
addq $8, %rsp
.exit:
ret
// hand-craft a dummy .reloc section so EFI knows it's a relocatable executable:
.data
dummy: .long 0
#define IMAGE_REL_ABSOLUTE 0
.section .reloc, "a"
label1:
.long dummy-label1 // Page RVA
.long 10 // Block Size (2*4+2)
.word (IMAGE_REL_ABSOLUTE<<12) + 0 // reloc for dummy

63
gnu-efi/gnuefi/elf_aarch64_efi.lds Normal file
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OUTPUT_FORMAT("elf64-littleaarch64", "elf64-littleaarch64", "elf64-littleaarch64")
OUTPUT_ARCH(aarch64)
ENTRY(_start)
SECTIONS
{
.text 0x0 : {
_text = .;
*(.text.head)
*(.text)
*(.text.*)
*(.gnu.linkonce.t.*)
*(.srodata)
*(.rodata*)
. = ALIGN(16);
}
_etext = .;
_text_size = . - _text;
.dynamic : { *(.dynamic) }
.data : ALIGN(4096)
{
_data = .;
*(.sdata)
*(.data)
*(.data1)
*(.data.*)
*(.got.plt)
*(.got)
/* the EFI loader doesn't seem to like a .bss section, so we stick
it all into .data: */
. = ALIGN(16);
_bss = .;
*(.sbss)
*(.scommon)
*(.dynbss)
*(.bss)
*(COMMON)
. = ALIGN(16);
_bss_end = .;
}
.rela.dyn : { *(.rela.dyn) }
.rela.plt : { *(.rela.plt) }
.rela.got : { *(.rela.got) }
.rela.data : { *(.rela.data) *(.rela.data*) }
. = ALIGN(512);
_edata = .;
_data_size = . - _data;
. = ALIGN(4096);
.dynsym : { *(.dynsym) }
. = ALIGN(4096);
.dynstr : { *(.dynstr) }
. = ALIGN(4096);
.note.gnu.build-id : { *(.note.gnu.build-id) }
/DISCARD/ :
{
*(.rel.reloc)
*(.eh_frame)
*(.note.GNU-stack)
}
.comment 0 : { *(.comment) }
}

63
gnu-efi/gnuefi/elf_arm_efi.lds Normal file
View File

@@ -0,0 +1,63 @@
OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
OUTPUT_ARCH(arm)
ENTRY(_start)
SECTIONS
{
.text 0x0 : {
_text = .;
*(.text.head)
*(.text)
*(.text.*)
*(.gnu.linkonce.t.*)
*(.srodata)
*(.rodata*)
. = ALIGN(16);
}
_etext = .;
_text_size = . - _text;
.dynamic : { *(.dynamic) }
.data :
{
_data = .;
*(.sdata)
*(.data)
*(.data1)
*(.data.*)
*(.got.plt)
*(.got)
/* the EFI loader doesn't seem to like a .bss section, so we stick
it all into .data: */
. = ALIGN(16);
_bss = .;
*(.sbss)
*(.scommon)
*(.dynbss)
*(.bss)
*(.bss.*)
*(COMMON)
. = ALIGN(16);
_bss_end = .;
}
.rel.dyn : { *(.rel.dyn) }
.rel.plt : { *(.rel.plt) }
.rel.got : { *(.rel.got) }
.rel.data : { *(.rel.data) *(.rel.data*) }
_edata = .;
_data_size = . - _etext;
. = ALIGN(4096);
.dynsym : { *(.dynsym) }
. = ALIGN(4096);
.dynstr : { *(.dynstr) }
. = ALIGN(4096);
.note.gnu.build-id : { *(.note.gnu.build-id) }
/DISCARD/ :
{
*(.rel.reloc)
*(.eh_frame)
*(.note.GNU-stack)
}
.comment 0 : { *(.comment) }
}

86
gnu-efi/gnuefi/elf_ia32_efi.lds Normal file
View File

@@ -0,0 +1,86 @@
OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
OUTPUT_ARCH(i386)
ENTRY(_start)
SECTIONS
{
. = 0;
ImageBase = .;
/* .hash and/or .gnu.hash MUST come first! */
.hash : { *(.hash) }
.gnu.hash : { *(.gnu.hash) }
. = ALIGN(4096);
.text :
{
_text = .;
*(.text)
*(.text.*)
*(.gnu.linkonce.t.*)
. = ALIGN(16);
}
_etext = .;
_text_size = . - _text;
. = ALIGN(4096);
.sdata :
{
_data = .;
*(.got.plt)
*(.got)
*(.srodata)
*(.sdata)
*(.sbss)
*(.scommon)
}
. = ALIGN(4096);
.data :
{
*(.rodata*)
*(.data)
*(.data1)
*(.data.*)
*(.sdata)
*(.got.plt)
*(.got)
/* the EFI loader doesn't seem to like a .bss section, so we stick
it all into .data: */
*(.sbss)
*(.scommon)
*(.dynbss)
*(.bss)
*(COMMON)
}
.note.gnu.build-id : { *(.note.gnu.build-id) }
. = ALIGN(4096);
.dynamic : { *(.dynamic) }
. = ALIGN(4096);
.rel :
{
*(.rel.data)
*(.rel.data.*)
*(.rel.got)
*(.rel.stab)
*(.data.rel.ro.local)
*(.data.rel.local)
*(.data.rel.ro)
*(.data.rel*)
}
_edata = .;
_data_size = . - _etext;
. = ALIGN(4096);
.reloc : /* This is the PECOFF .reloc section! */
{
*(.reloc)
}
. = ALIGN(4096);
.dynsym : { *(.dynsym) }
. = ALIGN(4096);
.dynstr : { *(.dynstr) }
. = ALIGN(4096);
/DISCARD/ :
{
*(.rel.reloc)
*(.eh_frame)
*(.note.GNU-stack)
}
.comment 0 : { *(.comment) }
}

86
gnu-efi/gnuefi/elf_ia32_fbsd_efi.lds Normal file
View File

@@ -0,0 +1,86 @@
OUTPUT_FORMAT("elf32-i386-freebsd", "elf32-i386-freebsd", "elf32-i386-freebsd")
OUTPUT_ARCH(i386)
ENTRY(_start)
SECTIONS
{
. = 0;
ImageBase = .;
/* .hash and/or .gnu.hash MUST come first! */
.hash : { *(.hash) }
.gnu.hash : { *(.gnu.hash) }
. = ALIGN(4096);
.text :
{
_text = .;
*(.text)
*(.text.*)
*(.gnu.linkonce.t.*)
. = ALIGN(16);
}
_etext = .;
_text_size = . - _text;
. = ALIGN(4096);
.sdata :
{
_data = .;
*(.got.plt)
*(.got)
*(.srodata)
*(.sdata)
*(.sbss)
*(.scommon)
}
. = ALIGN(4096);
.data :
{
*(.rodata*)
*(.data)
*(.data1)
*(.data.*)
*(.sdata)
*(.got.plt)
*(.got)
/* the EFI loader doesn't seem to like a .bss section, so we stick
it all into .data: */
*(.sbss)
*(.scommon)
*(.dynbss)
*(.bss)
*(COMMON)
}
.note.gnu.build-id : { *(.note.gnu.build-id) }
. = ALIGN(4096);
.dynamic : { *(.dynamic) }
. = ALIGN(4096);
.rel :
{
*(.rel.data)
*(.rel.data.*)
*(.rel.got)
*(.rel.stab)
*(.data.rel.ro.local)
*(.data.rel.local)
*(.data.rel.ro)
*(.data.rel*)
}
_edata = .;
_data_size = . - _etext;
. = ALIGN(4096);
.reloc : /* This is the PECOFF .reloc section! */
{
*(.reloc)
}
. = ALIGN(4096);
.dynsym : { *(.dynsym) }
. = ALIGN(4096);
.dynstr : { *(.dynstr) }
. = ALIGN(4096);
/DISCARD/ :
{
*(.rel.reloc)
*(.eh_frame)
*(.note.GNU-stack)
}
.comment 0 : { *(.comment) }
}

81
gnu-efi/gnuefi/elf_ia64_efi.lds Normal file
View File

@@ -0,0 +1,81 @@
OUTPUT_FORMAT("elf64-ia64-little")
OUTPUT_ARCH(ia64)
ENTRY(_start_plabel)
SECTIONS
{
. = 0;
ImageBase = .;
/* .hash and/or .gnu.hash MUST come first! */
.hash : { *(.hash) }
.gnu.hash : { *(.gnu.hash) }
. = ALIGN(4096);
.text :
{
_text = .;
*(.text)
*(.text.*)
*(.gnu.linkonce.t.*)
. = ALIGN(16);
}
_etext = .;
_text_size = . - _text;
. = ALIGN(4096);
__gp = ALIGN (8) + 0x200000;
.sdata :
{
_data = .;
*(.got.plt)
*(.got)
*(.srodata)
*(.sdata)
*(.sbss)
*(.scommon)
}
. = ALIGN(4096);
.data :
{
*(.rodata*)
*(.ctors)
*(.data*)
*(.gnu.linkonce.d*)
*(.plabel) /* data whose relocs we want to ignore */
/* the EFI loader doesn't seem to like a .bss section, so we stick
it all into .data: */
*(.dynbss)
*(.bss)
*(COMMON)
}
.note.gnu.build-id : { *(.note.gnu.build-id) }
. = ALIGN(4096);
.dynamic : { *(.dynamic) }
. = ALIGN(4096);
.rela :
{
*(.rela.text)
*(.rela.data*)
*(.rela.sdata)
*(.rela.got)
*(.rela.gnu.linkonce.d*)
*(.rela.stab)
*(.rela.ctors)
}
_edata = .;
_data_size = . - _etext;
. = ALIGN(4096);
.reloc : /* This is the PECOFF .reloc section! */
{
*(.reloc)
}
. = ALIGN(4096);
.dynsym : { *(.dynsym) }
. = ALIGN(4096);
.dynstr : { *(.dynstr) }
/DISCARD/ :
{
*(.rela.plabel)
*(.rela.reloc)
*(.IA_64.unwind*)
*(.IA64.unwind*)
}
}

64
gnu-efi/gnuefi/elf_mips64el_efi.lds Normal file
View File

@@ -0,0 +1,64 @@
OUTPUT_FORMAT("elf64-tradlittlemips", "elf64-tradbigmips", "elf64-tradlittlemips")
OUTPUT_ARCH(mips)
ENTRY(_start)
SECTIONS
{
.text 0x0 : {
_text = .;
*(.text.head)
*(.text)
*(.text.*)
*(.gnu.linkonce.t.*)
*(.srodata)
*(.rodata*)
. = ALIGN(16);
}
_etext = .;
_text_size = . - _text;
.dynamic : { *(.dynamic) }
.data :
{
_data = .;
*(.sdata)
*(.data)
*(.data1)
*(.data.*)
*(.got.plt)
HIDDEN (_gp = ALIGN (16) + 0x7ff0);
*(.got)
/* the EFI loader doesn't seem to like a .bss section, so we stick
it all into .data: */
. = ALIGN(16);
_bss = .;
*(.sbss)
*(.scommon)
*(.dynbss)
*(.bss)
*(COMMON)
. = ALIGN(16);
_bss_end = .;
}
.rel.dyn : { *(.rel.dyn) }
.rel.plt : { *(.rel.plt) }
.rel.got : { *(.rel.got) }
.rel.data : { *(.rel.data) *(.rel.data*) }
_edata = .;
_data_size = . - _etext;
. = ALIGN(4096);
.dynsym : { *(.dynsym) }
. = ALIGN(4096);
.dynstr : { *(.dynstr) }
. = ALIGN(4096);
.note.gnu.build-id : { *(.note.gnu.build-id) }
/DISCARD/ :
{
*(.rel.reloc)
*(.eh_frame)
*(.MIPS.abiflags)
*(.note.GNU-stack)
}
.comment 0 : { *(.comment) }
}

76
gnu-efi/gnuefi/elf_x86_64_efi.lds Normal file
View File

@@ -0,0 +1,76 @@
/* Same as elf_x86_64_fbsd_efi.lds, except for OUTPUT_FORMAT below - KEEP IN SYNC */
OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64", "elf64-x86-64")
OUTPUT_ARCH(i386:x86-64)
ENTRY(_start)
SECTIONS
{
. = 0;
ImageBase = .;
/* .hash and/or .gnu.hash MUST come first! */
.hash : { *(.hash) }
.gnu.hash : { *(.gnu.hash) }
. = ALIGN(4096);
.eh_frame :
{
*(.eh_frame)
}
. = ALIGN(4096);
.text :
{
_text = .;
*(.text)
*(.text.*)
*(.gnu.linkonce.t.*)
. = ALIGN(16);
}
_etext = .;
_text_size = . - _text;
. = ALIGN(4096);
.reloc :
{
*(.reloc)
}
. = ALIGN(4096);
.data :
{
_data = .;
*(.rodata*)
*(.got.plt)
*(.got)
*(.data*)
*(.sdata)
/* the EFI loader doesn't seem to like a .bss section, so we stick
it all into .data: */
*(.sbss)
*(.scommon)
*(.dynbss)
*(.bss)
*(COMMON)
*(.rel.local)
}
.note.gnu.build-id : { *(.note.gnu.build-id) }
_edata = .;
_data_size = . - _etext;
. = ALIGN(4096);
.dynamic : { *(.dynamic) }
. = ALIGN(4096);
.rela :
{
*(.rela.data*)
*(.rela.got)
*(.rela.stab)
}
. = ALIGN(4096);
.dynsym : { *(.dynsym) }
. = ALIGN(4096);
.dynstr : { *(.dynstr) }
. = ALIGN(4096);
.ignored.reloc :
{
*(.rela.reloc)
*(.eh_frame)
*(.note.GNU-stack)
}
.comment 0 : { *(.comment) }
}

70
gnu-efi/gnuefi/elf_x86_64_fbsd_efi.lds Normal file
View File

@@ -0,0 +1,70 @@
/* Same as elf_x86_64_efi.lds, except for OUTPUT_FORMAT below - KEEP IN SYNC */
OUTPUT_FORMAT("elf64-x86-64-freebsd", "elf64-x86-64-freebsd", "elf64-x86-64-freebsd")
OUTPUT_ARCH(i386:x86-64)
ENTRY(_start)
SECTIONS
{
. = 0;
ImageBase = .;
/* .hash and/or .gnu.hash MUST come first! */
.hash : { *(.hash) }
.gnu.hash : { *(.gnu.hash) }
. = ALIGN(4096);
.eh_frame :
{
*(.eh_frame)
}
. = ALIGN(4096);
.text :
{
_text = .;
*(.text)
. = ALIGN(16);
}
_etext = .;
_text_size = . - _text;
.reloc :
{
*(.reloc)
}
. = ALIGN(4096);
.data :
{
_data = .;
*(.rodata*)
*(.got.plt)
*(.got)
*(.data*)
*(.sdata)
/* the EFI loader doesn't seem to like a .bss section, so we stick
it all into .data: */
*(.sbss)
*(.scommon)
*(.dynbss)
*(.bss)
*(COMMON)
*(.rel.local)
}
.note.gnu.build-id : { *(.note.gnu.build-id) }
. = ALIGN(4096);
.dynamic : { *(.dynamic) }
. = ALIGN(4096);
.rela :
{
*(.rela.data*)
*(.rela.got)
*(.rela.stab)
}
_edata = .;
_data_size = . - _etext;
. = ALIGN(4096);
.dynsym : { *(.dynsym) }
. = ALIGN(4096);
.dynstr : { *(.dynstr) }
. = ALIGN(4096);
.ignored.reloc :
{
*(.rela.reloc)
}
}

97
gnu-efi/gnuefi/reloc_aarch64.c Normal file
View File

@@ -0,0 +1,97 @@
/* reloc_aarch64.c - position independent x86 ELF shared object relocator
Copyright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>
Copyright (C) 1999 Hewlett-Packard Co.
Contributed by David Mosberger <davidm@hpl.hp.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.
*/
#include <efi.h>
#include <efilib.h>
#include <elf.h>
EFI_STATUS _relocate (long ldbase, Elf64_Dyn *dyn,
EFI_HANDLE image EFI_UNUSED,
EFI_SYSTEM_TABLE *systab EFI_UNUSED)
{
long relsz = 0, relent = 0;
Elf64_Rela *rel = 0;
unsigned long *addr;
int i;
for (i = 0; dyn[i].d_tag != DT_NULL; ++i) {
switch (dyn[i].d_tag) {
case DT_RELA:
rel = (Elf64_Rela*)
((unsigned long)dyn[i].d_un.d_ptr
+ ldbase);
break;
case DT_RELASZ:
relsz = dyn[i].d_un.d_val;
break;
case DT_RELAENT:
relent = dyn[i].d_un.d_val;
break;
default:
break;
}
}
if (!rel && relent == 0)
return EFI_SUCCESS;
if (!rel || relent == 0)
return EFI_LOAD_ERROR;
while (relsz > 0) {
/* apply the relocs */
switch (ELF64_R_TYPE (rel->r_info)) {
case R_AARCH64_NONE:
break;
case R_AARCH64_RELATIVE:
addr = (unsigned long *)
(ldbase + rel->r_offset);
*addr = ldbase + rel->r_addend;
break;
default:
break;
}
rel = (Elf64_Rela*) ((char *) rel + relent);
relsz -= relent;
}
return EFI_SUCCESS;
}

97
gnu-efi/gnuefi/reloc_arm.c Normal file
View File

@@ -0,0 +1,97 @@
/* reloc_arm.c - position independent x86 ELF shared object relocator
Copyright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>
Copyright (C) 1999 Hewlett-Packard Co.
Contributed by David Mosberger <davidm@hpl.hp.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.
*/
#include <efi.h>
#include <efilib.h>
#include <elf.h>
EFI_STATUS _relocate (long ldbase, Elf32_Dyn *dyn,
EFI_HANDLE image EFI_UNUSED,
EFI_SYSTEM_TABLE *systab EFI_UNUSED)
{
long relsz = 0, relent = 0;
Elf32_Rel *rel = 0;
unsigned long *addr;
int i;
for (i = 0; dyn[i].d_tag != DT_NULL; ++i) {
switch (dyn[i].d_tag) {
case DT_REL:
rel = (Elf32_Rel*)
((unsigned long)dyn[i].d_un.d_ptr
+ ldbase);
break;
case DT_RELSZ:
relsz = dyn[i].d_un.d_val;
break;
case DT_RELENT:
relent = dyn[i].d_un.d_val;
break;
default:
break;
}
}
if (!rel && relent == 0)
return EFI_SUCCESS;
if (!rel || relent == 0)
return EFI_LOAD_ERROR;
while (relsz > 0) {
/* apply the relocs */
switch (ELF32_R_TYPE (rel->r_info)) {
case R_ARM_NONE:
break;
case R_ARM_RELATIVE:
addr = (unsigned long *)
(ldbase + rel->r_offset);
*addr += ldbase;
break;
default:
break;
}
rel = (Elf32_Rel*) ((char *) rel + relent);
relsz -= relent;
}
return EFI_SUCCESS;
}

99
gnu-efi/gnuefi/reloc_ia32.c Normal file
View File

@@ -0,0 +1,99 @@
/* reloc_ia32.c - position independent x86 ELF shared object relocator
Copyright (C) 1999 Hewlett-Packard Co.
Contributed by David Mosberger <davidm@hpl.hp.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.
*/
#include <efi.h>
#include <efilib.h>
#include <elf.h>
EFI_STATUS _relocate (long ldbase, Elf32_Dyn *dyn,
EFI_HANDLE image EFI_UNUSED,
EFI_SYSTEM_TABLE *systab EFI_UNUSED)
{
long relsz = 0, relent = 0;
Elf32_Rel *rel = 0;
unsigned long *addr;
int i;
for (i = 0; dyn[i].d_tag != DT_NULL; ++i) {
switch (dyn[i].d_tag) {
case DT_REL:
rel = (Elf32_Rel*)
((unsigned long)dyn[i].d_un.d_ptr
+ ldbase);
break;
case DT_RELSZ:
relsz = dyn[i].d_un.d_val;
break;
case DT_RELENT:
relent = dyn[i].d_un.d_val;
break;
case DT_RELA:
break;
default:
break;
}
}
if (!rel && relent == 0)
return EFI_SUCCESS;
if (!rel || relent == 0)
return EFI_LOAD_ERROR;
while (relsz > 0) {
/* apply the relocs */
switch (ELF32_R_TYPE (rel->r_info)) {
case R_386_NONE:
break;
case R_386_RELATIVE:
addr = (unsigned long *)
(ldbase + rel->r_offset);
*addr += ldbase;
break;
default:
break;
}
rel = (Elf32_Rel*) ((char *) rel + relent);
relsz -= relent;
}
return EFI_SUCCESS;
}

227
gnu-efi/gnuefi/reloc_ia64.S Normal file
View File

@@ -0,0 +1,227 @@
/* reloc_ia64.S - position independent IA-64 ELF shared object relocator
Copyright (C) 1999 Hewlett-Packard Co.
Contributed by David Mosberger <davidm@hpl.hp.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.
*/
/*
* This is written in assembly because the entire code needs to be position
* independent. Note that the compiler does not generate code that's position
* independent by itself because it relies on the global offset table being
* relocated.
*/
.text
.psr abi64
.psr lsb
.lsb
/*
* This constant determines how many R_IA64_FPTR64LSB relocations we
* can deal with. If you get EFI_BUFFER_TOO_SMALL errors, you may
* need to increase this number.
*/
#define MAX_FUNCTION_DESCRIPTORS 750
#define ST_VALUE_OFF 8 /* offset of st_value in elf sym */
#define EFI_SUCCESS 0
#define EFI_LOAD_ERROR 1
#define EFI_BUFFER_TOO_SMALL 5
#define DT_NULL 0 /* Marks end of dynamic section */
#define DT_RELA 7 /* Address of Rela relocs */
#define DT_RELASZ 8 /* Total size of Rela relocs */
#define DT_RELAENT 9 /* Size of one Rela reloc */
#define DT_SYMTAB 6 /* Address of symbol table */
#define DT_SYMENT 11 /* Size of one symbol table entry */
#define R_IA64_NONE 0
#define R_IA64_REL64MSB 0x6e
#define R_IA64_REL64LSB 0x6f
#define R_IA64_DIR64MSB 0x26
#define R_IA64_DIR64LSB 0x27
#define R_IA64_FPTR64MSB 0x46
#define R_IA64_FPTR64LSB 0x47
#define ldbase in0 /* load address (address of .text) */
#define dyn in1 /* address of _DYNAMIC */
#define d_tag r16
#define d_val r17
#define rela r18
#define relasz r19
#define relaent r20
#define addr r21
#define r_info r22
#define r_offset r23
#define r_addend r24
#define r_type r25
#define r_sym r25 /* alias of r_type ! */
#define fptr r26
#define fptr_limit r27
#define symtab f8
#define syment f9
#define ftmp f10
#define target r16
#define val r17
#define NLOC 0
#define Pnull p6
#define Prela p7
#define Prelasz p8
#define Prelaent p9
#define Psymtab p10
#define Psyment p11
#define Pnone p6
#define Prel p7
#define Pfptr p8
#define Pmore p6
#define Poom p6 /* out-of-memory */
.global _relocate
.proc _relocate
_relocate:
alloc r2=ar.pfs,2,0,0,0
movl fptr = @gprel(fptr_mem_base)
;;
add fptr = fptr, gp
movl fptr_limit = @gprel(fptr_mem_limit)
;;
add fptr_limit = fptr_limit, gp
search_dynamic:
ld8 d_tag = [dyn],8
;;
ld8 d_val = [dyn],8
cmp.eq Pnull,p0 = DT_NULL,d_tag
(Pnull) br.cond.sptk.few apply_relocs
cmp.eq Prela,p0 = DT_RELA,d_tag
cmp.eq Prelasz,p0 = DT_RELASZ,d_tag
cmp.eq Psymtab,p0 = DT_SYMTAB,d_tag
cmp.eq Psyment,p0 = DT_SYMENT,d_tag
cmp.eq Prelaent,p0 = DT_RELAENT,d_tag
;;
(Prela) add rela = d_val, ldbase
(Prelasz) mov relasz = d_val
(Prelaent) mov relaent = d_val
(Psymtab) add val = d_val, ldbase
;;
(Psyment) setf.sig syment = d_val
;;
(Psymtab) setf.sig symtab = val
br.sptk.few search_dynamic
apply_loop:
ld8 r_offset = [rela]
add addr = 8,rela
sub relasz = relasz,relaent
;;
ld8 r_info = [addr],8
;;
ld8 r_addend = [addr]
add target = ldbase, r_offset
add rela = rela,relaent
extr.u r_type = r_info, 0, 32
;;
cmp.eq Pnone,p0 = R_IA64_NONE,r_type
cmp.eq Prel,p0 = R_IA64_REL64LSB,r_type
cmp.eq Pfptr,p0 = R_IA64_FPTR64LSB,r_type
(Prel) br.cond.sptk.few apply_REL64
;;
cmp.eq Prel,p0 = R_IA64_DIR64LSB,r_type // treat DIR64 just like REL64
(Pnone) br.cond.sptk.few apply_relocs
(Prel) br.cond.sptk.few apply_REL64
(Pfptr) br.cond.sptk.few apply_FPTR64
mov r8 = EFI_LOAD_ERROR
br.ret.sptk.few rp
apply_relocs:
cmp.ltu Pmore,p0=0,relasz
(Pmore) br.cond.sptk.few apply_loop
mov r8 = EFI_SUCCESS
br.ret.sptk.few rp
apply_REL64:
ld8 val = [target]
;;
add val = val,ldbase
;;
st8 [target] = val
br.cond.sptk.few apply_relocs
// FPTR relocs are a bit more interesting: we need to lookup
// the symbol's value in symtab, allocate 16 bytes of memory,
// store the value in [target] in the first and the gp in the
// second dword.
apply_FPTR64:
st8 [target] = fptr
extr.u r_sym = r_info,32,32
add target = 8,fptr
;;
setf.sig ftmp = r_sym
mov r8=EFI_BUFFER_TOO_SMALL
;;
cmp.geu Poom,p0 = fptr,fptr_limit
xma.lu ftmp = ftmp,syment,symtab
(Poom) br.ret.sptk.few rp
;;
getf.sig addr = ftmp
st8 [target] = gp
;;
add addr = ST_VALUE_OFF, addr
;;
ld8 val = [addr]
;;
add val = val,ldbase
;;
st8 [fptr] = val,16
br.cond.sptk.few apply_relocs
.endp _relocate
.data
.align 16
fptr_mem_base:
.space MAX_FUNCTION_DESCRIPTORS*16
fptr_mem_limit:

115
gnu-efi/gnuefi/reloc_mips64el.c Normal file
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/* reloc_mips64el.c - position independent MIPS64 ELF shared object relocator
Copyright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>
Copyright (C) 1999 Hewlett-Packard Co.
Contributed by David Mosberger <davidm@hpl.hp.com>.
Copyright (C) 2017 Lemote Co.
Contributed by Heiher <r@hev.cc>
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.
*/
#include <efi.h>
#include <efilib.h>
#include <elf.h>
EFI_STATUS _relocate (long ldbase, Elf64_Dyn *dyn,
EFI_HANDLE image EFI_UNUSED,
EFI_SYSTEM_TABLE *systab EFI_UNUSED)
{
long relsz = 0, relent = 0, gotsz = 0;
Elf64_Rel *rel = 0;
unsigned long *addr = 0;
int i;
for (i = 0; dyn[i].d_tag != DT_NULL; ++i) {
switch (dyn[i].d_tag) {
case DT_REL:
rel = (Elf64_Rel*)
((unsigned long)dyn[i].d_un.d_ptr
+ ldbase);
break;
case DT_RELSZ:
relsz = dyn[i].d_un.d_val;
break;
case DT_RELENT:
relent = dyn[i].d_un.d_val;
break;
case DT_PLTGOT:
addr = (unsigned long *)
((unsigned long)dyn[i].d_un.d_ptr
+ ldbase);
break;
case DT_MIPS_LOCAL_GOTNO:
gotsz = dyn[i].d_un.d_val;
break;
default:
break;
}
}
if ((!rel && relent == 0) && (!addr && gotsz == 0))
return EFI_SUCCESS;
if ((!rel && relent != 0) || (!addr && gotsz != 0))
return EFI_LOAD_ERROR;
while (gotsz > 0) {
*addr += ldbase;
addr += 1;
gotsz --;
}
while (relsz > 0) {
/* apply the relocs */
switch (ELF64_R_TYPE (swap_uint64 (rel->r_info))) {
case R_MIPS_NONE:
break;
case (R_MIPS_64 << 8) | R_MIPS_REL32:
addr = (unsigned long *)
(ldbase + rel->r_offset);
*addr += ldbase;
break;
default:
break;
}
rel = (Elf64_Rel*) ((char *) rel + relent);
relsz -= relent;
}
return EFI_SUCCESS;
}

98
gnu-efi/gnuefi/reloc_x86_64.c Normal file
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/* reloc_x86_64.c - position independent x86_64 ELF shared object relocator
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.
*/
#include <efi.h>
#include <efilib.h>
#include <elf.h>
EFI_STATUS _relocate (long ldbase, Elf64_Dyn *dyn,
EFI_HANDLE image EFI_UNUSED,
EFI_SYSTEM_TABLE *systab EFI_UNUSED)
{
long relsz = 0, relent = 0;
Elf64_Rel *rel = 0;
unsigned long *addr;
int i;
for (i = 0; dyn[i].d_tag != DT_NULL; ++i) {
switch (dyn[i].d_tag) {
case DT_RELA:
rel = (Elf64_Rel*)
((unsigned long)dyn[i].d_un.d_ptr
+ ldbase);
break;
case DT_RELASZ:
relsz = dyn[i].d_un.d_val;
break;
case DT_RELAENT:
relent = dyn[i].d_un.d_val;
break;
default:
break;
}
}
if (!rel && relent == 0)
return EFI_SUCCESS;
if (!rel || relent == 0)
return EFI_LOAD_ERROR;
while (relsz > 0) {
/* apply the relocs */
switch (ELF64_R_TYPE (rel->r_info)) {
case R_X86_64_NONE:
break;
case R_X86_64_RELATIVE:
addr = (unsigned long *)
(ldbase + rel->r_offset);
*addr += ldbase;
break;
default:
break;
}
rel = (Elf64_Rel*) ((char *) rel + relent);
relsz -= relent;
}
return EFI_SUCCESS;
}