7960d3e182
16-byte boundary, as required by the x86-64 ABI, before calling grub_main. In some cases, GCC emits code that assumes this alignment, which crashes if not aligned. The EFI firmware is also entitled to assume that stack alignment without checking.
35 lines
1.1 KiB
ArmAsm
35 lines
1.1 KiB
ArmAsm
/* startup.S - bootstrap GRUB itself */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2006,2007,2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <grub/symbol.h>
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.file "startup.S"
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.text
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.globl start, _start
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.code64
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start:
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_start:
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movq %rcx, EXT_C(grub_efi_image_handle)(%rip)
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movq %rdx, EXT_C(grub_efi_system_table)(%rip)
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andq $~0xf, %rsp
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call EXT_C(grub_main)
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/* Doesn't return. */
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