Fennix/Kernel/kernel_note.cpp
EnderIce2 2d0245f2ac
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feat(kernel): move kernel note to a separate file
Signed-off-by: EnderIce2 <enderice2@protonmail.com>
2025-03-21 03:29:40 +00:00

87 lines
2.6 KiB
C++

/*
This file is part of Fennix Kernel.
Fennix Kernel 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.
Fennix Kernel 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 Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
*/
#define HEX_DIGIT(c) (((c) >= '0' && (c) <= '9') ? ((c) - '0') : ((c) - 'a' + 10))
#define CONVERT_TO_BYTE(h, l) ((HEX_DIGIT(h) << 4) | HEX_DIGIT(l))
#define HASH_BYTES(hex) \
{CONVERT_TO_BYTE(hex[0], hex[1]), \
CONVERT_TO_BYTE(hex[2], hex[3]), \
CONVERT_TO_BYTE(hex[4], hex[5]), \
CONVERT_TO_BYTE(hex[6], hex[7]), \
CONVERT_TO_BYTE(hex[8], hex[9]), \
CONVERT_TO_BYTE(hex[10], hex[11]), \
CONVERT_TO_BYTE(hex[12], hex[13]), \
CONVERT_TO_BYTE(hex[14], hex[15]), \
CONVERT_TO_BYTE(hex[16], hex[17]), \
CONVERT_TO_BYTE(hex[18], hex[19]), \
CONVERT_TO_BYTE(hex[20], hex[21]), \
CONVERT_TO_BYTE(hex[22], hex[23]), \
CONVERT_TO_BYTE(hex[24], hex[25]), \
CONVERT_TO_BYTE(hex[26], hex[27]), \
CONVERT_TO_BYTE(hex[28], hex[29]), \
CONVERT_TO_BYTE(hex[30], hex[31]), \
CONVERT_TO_BYTE(hex[32], hex[33]), \
CONVERT_TO_BYTE(hex[34], hex[35]), \
CONVERT_TO_BYTE(hex[36], hex[37]), \
CONVERT_TO_BYTE(hex[38], hex[39])}
/* These are declared in GNU ld */
enum
{
NT_FNX_ABI_TAG = 1,
NT_FNX_VERSION = 2,
NT_FNX_BUILD_ID = 3,
NT_FNX_ARCH = 4
};
struct Elf_Nhdr
{
__UINT32_TYPE__ n_namesz;
__UINT32_TYPE__ n_descsz;
__UINT32_TYPE__ n_type;
} __attribute__((packed));
const struct
{
Elf_Nhdr header;
char name[4];
__UINT32_TYPE__ desc[4];
} __abi_tag __attribute__((aligned(4), section(".note.ABI-tag"))) = {
.header = {
.n_namesz = 4, /* "FNX" + '\0' */
.n_descsz = sizeof(__UINT32_TYPE__) * 4, /* Description Size */
.n_type = NT_FNX_ABI_TAG, /* Type */
},
.name = "FNX",
.desc = {0, 0, 0, 0},
};
const struct
{
Elf_Nhdr header;
char name[4];
__UINT8_TYPE__ desc[20];
} __build_id __attribute__((aligned(4), section(".note.build-id"))) = {
.header = {
.n_namesz = 4, /* "FNX" + '\0' */
.n_descsz = sizeof(__UINT8_TYPE__) * 20, /* Description Size */
.n_type = NT_FNX_BUILD_ID, /* Type */
},
.name = "FNX",
.desc = HASH_BYTES(GIT_COMMIT),
};