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Annotation of solidite/kernel/main/main.c, revision 1.1

1.1     ! user        1: /* Copyright (c) 2026 The Solidite Developers
        !             2:  *
        !             3:  * This program is free software: you can redistribute it and/or modify it
        !             4:  * under the terms of the GNU Affero General Public License as published by the
        !             5:  * Free Software Foundation, either version 3 of the License, or (at your
        !             6:  * option) any later version.
        !             7:  *
        !             8:  * This program is distributed in the hope that it will be useful, but WITHOUT
        !             9:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
        !            10:  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License
        !            11:  * for more details.
        !            12:  *
        !            13:  * You should have received a copy of the GNU Affero General Public License
        !            14:  * along with this program. If not, see <https://www.gnu.org/licenses/>. */
        !            15: 
        !            16: #include "../../libc/include/stdint.h"
        !            17: 
        !            18: #if defined(__riscv) && (__riscv_xlen == 64) /* 64-bit RISC-V */
        !            19: 
        !            20: #include "../libkernel/riscv64.h"
        !            21: 
        !            22: #define MODULED_ADDRESS 0x80400000
        !            23: 
        !            24: asm (
        !            25:   ".section .text\n"
        !            26:     ".globl _start\n"
        !            27: 
        !            28:   "_start:\n"
        !            29:     "la sp, stack_top\n"
        !            30:     "tail main\n"
        !            31: 
        !            32:   ".section .bss\n"
        !            33:     ".align 12\n" /* 4 KiB stack alignment */
        !            34:     ".space 0x4000\n" /* 16 KiB stack allocation */
        !            35: 
        !            36:   "stack_top:\n"
        !            37: 
        !            38:   ".section .text\n"
        !            39: );
        !            40: 
        !            41: void main(unsigned long hartid, unsigned long dtb_pa) {
        !            42:   if (hartid != 0)
        !            43:     return; /* no SMP yet */
        !            44:   else
        !            45:     kwrite("[kernel] console init\n");
        !            46: 
        !            47:   ((void (*)(unsigned long))MODULED_ADDRESS)(dtb_pa);
        !            48:   return;
        !            49: }
        !            50: 
        !            51: #elif defined(__x86_64__) /* x86_64 */
        !            52: 
        !            53: __attribute__((used, section(".limine_requests"))) static volatile uint64_t
        !            54:     limine_base_revision[] = {0xfacade934a3e2a22, 0x51da7bc4ced6c7c1, 0};
        !            55:   /* uses limine boot protocol for now, TODO: add multiboot v2 */
        !            56: 
        !            57: void _start(void) {
        !            58:   for (;;) {}
        !            59: }
        !            60: 
        !            61: #else
        !            62: #error "The kernel does not have support for your CPU architecture."
        !            63: #error "Please check your C preprocessor if you believe this is a mistake."
        !            64: #endif