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libkernaux
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Packed structs

This commit is contained in:
Alex Kotov 2020-11-28 01:10:21 +05:00
parent c40e69b73e
commit 29066eda8d
Signed by: kotovalexarian
GPG Key ID: 553C0EBBEB5D5F08
1 changed files with 99 additions and 75 deletions
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174
include/kernaux/multiboot2.h
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@ -10,14 +10,16 @@ extern "C" {
*********************/
struct KernAux_Multiboot2 {
unsigned int total_size;
unsigned int reserved1;
};
unsigned int total_size : 32;
unsigned int reserved1 : 32;
}
__attribute__((packed));
struct KernAux_Multiboot2_TagBase {
unsigned int type;
unsigned int size;
};
unsigned int type : 32;
unsigned int size : 32;
}
__attribute__((packed));
/******************
* Tag structures *
@ -29,7 +31,8 @@ struct KernAux_Multiboot2_Tag_BootCmdLine {
struct KernAux_Multiboot2_TagBase base;
char cmdline[];
};
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_BootLoaderName {
// type = 2
@ -37,135 +40,147 @@ struct KernAux_Multiboot2_Tag_BootLoaderName {
struct KernAux_Multiboot2_TagBase base;
char name[];
};
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_Module {
// type = 3
// size = ?
struct KernAux_Multiboot2_TagBase base;
unsigned int mod_start;
unsigned int mod_end;
unsigned int mod_start : 32;
unsigned int mod_end : 32;
char cmdline[];
};
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_BasicMemoryInfo {
// type = 4
// size = 16
struct KernAux_Multiboot2_TagBase base;
unsigned int mem_lower;
unsigned int mem_upper;
};
unsigned int mem_lower : 32;
unsigned int mem_upper : 32;
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_BIOSBootDevice {
// type = 5
// size = 20
struct KernAux_Multiboot2_TagBase base;
unsigned int bios_dev;
unsigned int partition;
unsigned int sub_partition;
};
unsigned int bios_dev : 32;
unsigned int partition : 32;
unsigned int sub_partition : 32;
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_MemoryMap {
// type = 5
// size = ?
struct KernAux_Multiboot2_TagBase base;
unsigned int size;
unsigned int entry_size;
unsigned int entry_version;
unsigned int size : 32;
unsigned int entry_size : 32;
unsigned int entry_version : 32;
unsigned char data[];
};
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_VBEInfo {
// type = 7
// size = 784
struct KernAux_Multiboot2_TagBase base;
unsigned short vbe_mode;
unsigned short vbe_interface_seg;
unsigned short vbe_interface_off;
unsigned short vbe_interface_len;
unsigned short vbe_mode : 16;
unsigned short vbe_interface_seg : 16;
unsigned short vbe_interface_off : 16;
unsigned short vbe_interface_len : 16;
unsigned char vbe_control_info[512];
unsigned char vbe_mode_info[256];
};
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_FramebufferInfo {
// type = 8
// size = ?
struct KernAux_Multiboot2_TagBase base;
unsigned long long framebuffer_addr;
unsigned int framebuffer_pitch;
unsigned int framebuffer_width;
unsigned int framebuffer_height;
unsigned char framebuffer_bpp;
unsigned char framebuffer_type;
unsigned char reserved1;
unsigned long long framebuffer_addr : 64;
unsigned int framebuffer_pitch : 32;
unsigned int framebuffer_width : 32;
unsigned int framebuffer_height : 32;
unsigned char framebuffer_bpp : 8;
unsigned char framebuffer_type : 8;
unsigned char reserved1 : 8;
unsigned char data[];
};
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_ELFSymbols {
// type = 9
// size = ?
struct KernAux_Multiboot2_TagBase base;
unsigned short num;
unsigned short ent_size;
unsigned short shndx;
unsigned short reserved1;
unsigned short num : 16;
unsigned short ent_size : 16;
unsigned short shndx : 16;
unsigned short reserved1 : 16;
unsigned char section_headers[];
};
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_APMTable {
// type = 10
// size = 20
struct KernAux_Multiboot2_TagBase base;
unsigned short version;
unsigned short cseg;
unsigned int offset;
unsigned short cseg_16;
unsigned short dseg;
unsigned short flags;
unsigned short cseg_len;
unsigned short cseg_16_len;
unsigned short dseg_len;
};
unsigned short version : 16;
unsigned short cseg : 16;
unsigned int offset : 32;
unsigned short cseg_16 : 16;
unsigned short dseg : 16;
unsigned short flags : 16;
unsigned short cseg_len : 16;
unsigned short cseg_16_len : 16;
unsigned short dseg_len : 16;
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_EFI32bitSystemTablePointer {
// type = 11
// size = 12
struct KernAux_Multiboot2_TagBase base;
unsigned int pointer;
};
unsigned int pointer : 32;
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_EFI64bitSystemTablePointer {
// type = 12
// size = 16
struct KernAux_Multiboot2_TagBase base;
unsigned long long pointer;
};
unsigned long long pointer : 64;
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_SMBIOSTables {
// type = 13
// size = ?
struct KernAux_Multiboot2_TagBase base;
unsigned char major;
unsigned char minor;
unsigned char major : 8;
unsigned char minor : 8;
unsigned char reserved1[6];
unsigned char data[];
};
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_ACPIOldRSDP {
// type = 14
@ -173,7 +188,8 @@ struct KernAux_Multiboot2_Tag_ACPIOldRSDP {
struct KernAux_Multiboot2_TagBase base;
unsigned char data[];
};
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_ACPINewRSDP {
// type = 15
@ -181,7 +197,8 @@ struct KernAux_Multiboot2_Tag_ACPINewRSDP {
struct KernAux_Multiboot2_TagBase base;
unsigned char data[];
};
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_NetworkingInfo {
// type = 16
@ -189,59 +206,66 @@ struct KernAux_Multiboot2_Tag_NetworkingInfo {
struct KernAux_Multiboot2_TagBase base;
unsigned char data[];
};
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_EFIMemoryMap {
// type = 17
// size = ?
struct KernAux_Multiboot2_TagBase base;
unsigned int descriptor_size;
unsigned int descriptor_version;
unsigned int descriptor_size : 32;
unsigned int descriptor_version : 32;
unsigned char data[];
};
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_EFIBootServicesNotTerminated {
// type = 18
// size = 8
struct KernAux_Multiboot2_TagBase base;
};
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_EFI32bitImageHandlePointer {
// type = 19
// size = 12
struct KernAux_Multiboot2_TagBase base;
unsigned int pointer;
};
unsigned int pointer : 32;
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_EFI64bitImageHandlePointer {
// type = 20
// size = 16
struct KernAux_Multiboot2_TagBase base;
unsigned long long pointer;
};
unsigned long long pointer : 64;
}
__attribute__((packed));
struct KernAux_Multiboot2_Tag_ImageLoadBasePhysAddr {
// type = 21
// size = 12
struct KernAux_Multiboot2_TagBase base;
unsigned int load_base_addr;
};
unsigned int load_base_addr : 32;
}
__attribute__((packed));
/*************************
* Additional structures *
*************************/
struct KernAux_Multiboot2_Tag_MemoryMap_EntryBase {
unsigned long long base_addr;
unsigned long long length;
unsigned int type;
unsigned int reserved1;
};
unsigned long long base_addr : 64;
unsigned long long length : 64;
unsigned int type : 32;
unsigned int reserved1 : 32;
}
__attribute__((packed));
#ifdef __cplusplus
}