74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
#include <limine.h>
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#include "kprintf.h"
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#include "banner.h"
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#include "hal/hal.h"
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#include "bootinfo/bootinfo.h"
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#include "pmm/pmm.h"
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#include "term/term.h"
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#include "paging/paging.h"
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#include "dlmalloc/malloc.h"
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#include "vfs/vfs.h"
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#include "baseimg/baseimg.h"
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#include "storedev/storedev.h"
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#include "util/util.h"
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const char *human_size(uint64_t bytes, char *buf, size_t bufsize) {
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static const char *units[] = { "B", "KiB", "MiB", "GiB", "TiB", "PiB" };
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int unit = 0;
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// Scale down until value fits nicely
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uint64_t rem = 0;
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while (bytes >= 1024 && unit < (int)(sizeof(units)/sizeof(units[0])) - 1) {
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rem = bytes % 1024;
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bytes /= 1024;
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unit++;
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}
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if (unit == 0) {
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// Just bytes
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ksnprintf(buf, bufsize, "%llu %s", (unsigned long long)bytes, units[unit]);
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} else {
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// Show one decimal place without using floats
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// Multiply remainder by 10 to get first decimal digit
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uint64_t frac = (rem * 10 + 512) / 1024; // rounded
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if (frac == 10) { // handle carry, e.g. 1023.9 -> 1024.0
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bytes++;
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frac = 0;
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}
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if (frac > 0) ksnprintf(buf, bufsize, "%llu.%llu %s", (unsigned long long)bytes, (unsigned long long)frac, units[unit]);
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else ksnprintf(buf, bufsize, "%llu %s", (unsigned long long)bytes, units[unit]);
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}
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return buf;
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}
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void log_bootinfo(void) {
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char buf[100];
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LOG("kmain", "Memory total = %s\n", human_size(BOOT_INFO.memmap_total, buf, sizeof(buf)));
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}
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static volatile LIMINE_BASE_REVISION(2);
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void kmain(void) {
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if (LIMINE_BASE_REVISION_SUPPORTED == false) {
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hal_hang();
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}
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bootinfo_init();
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term_init();
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log_bootinfo();
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hal_init();
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pmm_init();
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paging_init();
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dlmalloc_check();
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hal_init_withmalloc();
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storedev_init();
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baseimg_init();
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vfs_init();
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kprintf(BANNER_TEXT "\n");
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hal_hang();
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}
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