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/*
* 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
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