c5612330cc
This commit adds the functionality of generate EfiDebugImageInfo while loading the image. This feature is described in UEFI Spec 2.10. Section 18.4.3. The implementation ensures support for hardware-assisted debugging and provides a standardized mechanism for debuggers to discover the load address of an EFI application. Signed-off-by: Ying-Chun Liu (PaulLiu) <paulliu@debian.org>
74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/*
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* Copyright (C) 2024 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#ifndef __DEBUG_SUPPORT_
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#define __DEBUG_SUPPORT_
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#include <lib/bio.h>
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#include <uefi/system_table.h>
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#include <uefi/types.h>
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static constexpr auto EFI_DEBUG_IMAGE_INFO_TABLE_GUID =
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EfiGuid{0x49152e77,
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0x1ada,
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0x4764,
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{0xb7, 0xa2, 0x7a, 0xfe, 0xfe, 0xd9, 0x5e, 0x8b}};
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static constexpr size_t EFI_DEBUG_IMAGE_INFO_UPDATE_IN_PROGRESS = 0x01;
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static constexpr size_t EFI_DEBUG_IMAGE_INFO_TABLE_MODIFIED = 0x02;
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static constexpr size_t EFI_DEBUG_IMAGE_INFO_TYPE_NORMAL = 0x01;
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struct EfiSystemTablePointer {
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uint64_t signature;
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EfiSystemTable *system_table_base;
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uint32_t crc32;
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};
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struct EfiDebugImageInfoNormal {
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uint32_t image_info_type;
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struct EFI_LOADED_IMAGE_PROTOCOL *loaded_image_protocol_instance;
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EfiHandle image_handle;
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};
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union EfiDebugImageInfo {
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uint32_t *image_info_type;
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struct EfiDebugImageInfoNormal *normal_image;
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};
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struct EfiDebugImageInfoTableHeader {
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volatile uint32_t update_status;
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uint32_t table_size;
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union EfiDebugImageInfo *efi_debug_image_info_table;
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};
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EfiStatus efi_initialize_system_table_pointer(struct EfiSystemTable *system_table);
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EfiStatus efi_core_new_debug_image_info_entry(uint32_t image_info_type,
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struct EFI_LOADED_IMAGE_PROTOCOL *loaded_image,
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EfiHandle image_handle);
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void efi_core_remove_debug_image_info_entry(EfiHandle image_handle);
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EfiStatus setup_debug_support(EfiSystemTable &table,
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char *image_base,
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size_t virtual_size,
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bdev_t *dev);
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void teardown_debug_support(char *image_base);
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extern struct EfiDebugImageInfoTableHeader efi_m_debug_info_table_header;
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#endif
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