160 lines
2.9 KiB
ArmAsm
160 lines
2.9 KiB
ArmAsm
/*
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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 <grub/symbol.h>
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/*
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* x86_64 uses registry to pass parameters. Unfortunately, gcc and efi use
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* different call conversion, so we need to do some conversion.
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*
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* gcc:
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* %rdi, %rsi, %rdx, %rcx, %r8, %r9, 8(%rsp), 16(%rsp), ...
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*
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* efi:
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* %rcx, %rdx, %r8, %r9, 32(%rsp), 40(%rsp), 48(%rsp), ...
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*
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*/
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.file "efiemu.S"
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.text
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FUNCTION (efiemu_get_time)
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push %rdi
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push %rsi
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mov %rcx, %rdi
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mov %rdx, %rsi
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call efiemu_get_time_real
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pop %rsi
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pop %rdi
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ret
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FUNCTION (efiemu_set_time)
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push %rdi
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push %rsi
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mov %rcx, %rdi
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call efiemu_set_time_real
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pop %rsi
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pop %rdi
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ret
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FUNCTION (efiemu_get_wakeup_time)
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push %rdi
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push %rsi
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mov %rcx, %rdi
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mov %rdx, %rsi
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mov %r8, %rdx
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call efiemu_get_wakeup_time_real
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pop %rsi
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pop %rdi
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ret
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FUNCTION (efiemu_set_wakeup_time)
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push %rdi
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push %rsi
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mov %rcx, %rdi
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mov %rdx, %rsi
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call efiemu_set_wakeup_time_real
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pop %rsi
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pop %rdi
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ret
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FUNCTION (efiemu_get_variable)
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push %rdi
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push %rsi
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mov %rcx, %rdi
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mov %rdx, %rsi
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mov %r8, %rdx
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mov %r9, %rcx
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mov 56(%rsp), %r8
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call efiemu_get_variable_real
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pop %rsi
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pop %rdi
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ret
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FUNCTION (efiemu_get_next_variable_name)
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push %rdi
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push %rsi
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mov %rcx, %rdi
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mov %rdx, %rsi
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mov %r8, %rdx
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call efiemu_get_next_variable_name_real
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pop %rsi
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pop %rdi
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ret
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FUNCTION (efiemu_set_variable)
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push %rdi
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push %rsi
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mov %rcx, %rdi
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mov %rdx, %rsi
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mov %r8, %rdx
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mov %r9, %rcx
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mov 56(%rsp), %r8
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call efiemu_set_variable_real
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pop %rsi
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pop %rdi
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ret
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FUNCTION (efiemu_get_next_high_monotonic_count)
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push %rdi
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push %rsi
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mov %rcx, %rdi
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call efiemu_get_next_high_monotonic_count_real
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pop %rsi
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pop %rdi
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ret
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FUNCTION (efiemu_reset_system)
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push %rdi
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push %rsi
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mov %rcx, %rdi
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mov %rdx, %rsi
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mov %r8, %rdx
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mov %r9, %rcx
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call efiemu_reset_system_real
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pop %rsi
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pop %rdi
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ret
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/* The following functions are always called in physical mode */
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.section ".text-physical", "ax"
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FUNCTION (efiemu_set_virtual_address_map)
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push %rdi
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push %rsi
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mov %rcx, %rdi
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mov %rdx, %rsi
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mov %r8, %rdx
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mov %r9, %rcx
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call efiemu_set_virtual_address_map_real
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pop %rsi
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pop %rdi
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ret
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FUNCTION (efiemu_convert_pointer)
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push %rdi
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push %rsi
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mov %rcx, %rdi
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mov %rdx, %rsi
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call efiemu_convert_pointer_real
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pop %rsi
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pop %rdi
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ret
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