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Annotation of solidite/kernel/main/main.c, revision 1.1.1.1

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