| /* |
| * LoongArch binary image header. |
| */ |
| |
| #if !defined(__LOONGARCH_IMAGE_HEADER_H) |
| #define __LOONGARCH_IMAGE_HEADER_H |
| |
| #include <endian.h> |
| #include <stdint.h> |
| |
| /** |
| * struct loongarch_image_header |
| * |
| * @pe_sig: Optional PE format 'MZ' signature. |
| * @reserved_1: Reserved. |
| * @kernel_entry: Kernel image entry pointer. |
| * @image_size: An estimated size of the memory image size in LSB byte order. |
| * @text_offset: The image load offset in LSB byte order. |
| * @reserved_2: Reserved. |
| * @reserved_3: Reserved. |
| * @pe_header: Optional offset to a PE format header. |
| **/ |
| |
| struct loongarch_image_header { |
| uint8_t pe_sig[2]; |
| uint16_t reserved_1[3]; |
| uint64_t kernel_entry; |
| uint64_t image_size; |
| uint64_t text_offset; |
| uint64_t reserved_2[3]; |
| uint32_t reserved_3; |
| uint32_t pe_header; |
| }; |
| |
| static const uint8_t loongarch_image_pe_sig[2] = {'M', 'Z'}; |
| |
| /** |
| * loongarch_header_check_pe_sig - Helper to check the loongarch image header. |
| * |
| * Returns non-zero if 'MZ' signature is found. |
| */ |
| |
| static inline int loongarch_header_check_pe_sig(const struct loongarch_image_header *h) |
| { |
| if (!h) |
| return 0; |
| |
| return (h->pe_sig[0] == loongarch_image_pe_sig[0] |
| && h->pe_sig[1] == loongarch_image_pe_sig[1]); |
| } |
| |
| static inline uint64_t loongarch_header_text_offset( |
| const struct loongarch_image_header *h) |
| { |
| if (!h) |
| return 0; |
| |
| return le64toh(h->text_offset); |
| } |
| |
| static inline uint64_t loongarch_header_image_size( |
| const struct loongarch_image_header *h) |
| { |
| if (!h) |
| return 0; |
| |
| return le64toh(h->image_size); |
| } |
| |
| static inline uint64_t loongarch_header_kernel_entry( |
| const struct loongarch_image_header *h) |
| { |
| if (!h) |
| return 0; |
| |
| return le64toh(h->kernel_entry); |
| } |
| |
| #endif |