feedeaa339
Binutils 2.41 now supports efi-app-loongarch64, so to use this we must add a dummy reloc section and remove the PE header definition from crt0 as this will conflict with the version added by objcopy Signed-off-by: Xiaotian Wu <wuxiaotian@loongson.cn>
61 lines
1.8 KiB
ArmAsm
61 lines
1.8 KiB
ArmAsm
/*
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* crt0-efi-loongarch64.S - PE/COFF header for LoongArch64 EFI applications
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*
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* Copyright (C) 2021 Loongson Technology Corporation Limited. <zhoumingtao@loongson.cn>
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* Copyright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>
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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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* 1. Redistributions of source code must retain the above copyright
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* notice and this list of conditions, without modification.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License as published by the Free Software Foundation;
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* either version 2 of the License, or (at your option) any later version.
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*/
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.text
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.align 12
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.globl _start
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.type _start, @function
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_start:
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addi.d $sp, $sp, -24
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st.d $ra, $sp, 0
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st.d $a0, $sp, 8
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st.d $a1, $sp, 16
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move $a2, $a0 // a2: ImageHandle
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move $a3, $a1 // a3: SystemTable
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la.local $a0, ImageBase // a0: ImageBase
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la.local $a1, _DYNAMIC // a1: DynamicSection
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bl _relocate
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bnez $a0, 0f
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ld.d $a0, $sp, 8
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ld.d $a1, $sp, 16
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bl _entry
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0: ld.d $ra, $sp, 0
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addi.d $sp, $sp, 24
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jr $ra
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// hand-craft a dummy .reloc section so EFI knows it's a relocatable executable:
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.data
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dummy: .4byte 0
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#define IMAGE_REL_ABSOLUTE 0
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.section .reloc, "a"
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label1:
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.4byte dummy-label1 // Page RVA
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.4byte 12 // Block Size (2*4+2*2), must be aligned by 32 Bits
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.2byte (IMAGE_REL_ABSOLUTE<<12) + 0 // reloc for dummy
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.2byte (IMAGE_REL_ABSOLUTE<<12) + 0 // reloc for dummy
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#if defined(__ELF__) && defined(__linux__)
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.section .note.GNU-stack,"",%progbits
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#endif
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