From e2359cc68fa9f7c492fa6cdfedece0d3b3d8ab28 Mon Sep 17 00:00:00 2001 From: Wentao Guan Date: Sun, 25 Aug 2024 15:45:25 +0800 Subject: [PATCH] loongarch: Add early startup code On entry, we need to save the system table pointer as well as our image handle. Add an early startup file that saves them and then brings us into our main function. Signed-off-by: Zhou Yang Signed-off-by: Xiaotian Wu Reviewed-by: Daniel Kiper Signed-off-by: Wentao Guan --- .../grub-core/kern/loongarch64/efi/startup.S | 34 +++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 GRUB2/MOD_SRC/grub-2.04/grub-core/kern/loongarch64/efi/startup.S diff --git a/GRUB2/MOD_SRC/grub-2.04/grub-core/kern/loongarch64/efi/startup.S b/GRUB2/MOD_SRC/grub-2.04/grub-core/kern/loongarch64/efi/startup.S new file mode 100644 index 00000000..87cfb23e --- /dev/null +++ b/GRUB2/MOD_SRC/grub-2.04/grub-core/kern/loongarch64/efi/startup.S @@ -0,0 +1,34 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2023 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see . + */ + +#include + + .file "startup.S" + .text + +FUNCTION(_start) + /* + * EFI_SYSTEM_TABLE and EFI_HANDLE are passed in $a1/$a0. + */ + + la $a2, EXT_C(grub_efi_image_handle) + st.d $a0, $a2, 0 + la $a2, EXT_C(grub_efi_system_table) + st.d $a1, $a2, 0 + + b EXT_C(grub_main)