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CLI apps transfer to Userspace

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boreddevnl
2026-02-27 22:13:53 +01:00
parent 8c6d751254
commit 304c2e1383
97 changed files with 1669 additions and 2398 deletions
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82
src/kernel/syscall.c
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@@ -7,6 +7,9 @@
#include "fat32.h"
#include "paging.h"
#include "platform.h"
#include "io.h"
#include "pci.h"
#include "kutils.h"
// Read MSR
static inline uint64_t rdmsr(uint32_t msr) {
@@ -130,7 +133,6 @@ uint64_t syscall_handler_c(uint64_t syscall_num, uint64_t arg1, uint64_t arg2, u
if (syscall_num == 1) { // SYS_WRITE
// arg2 is the buffer based on our user_test logic
cmd_write((const char*)arg2);
serial_write((const char*)arg2);
} else if (syscall_num == 0 || syscall_num == 60) { // SYS_EXIT
serial_write("Kernel: SYS_EXIT called\n");
uint64_t next_rsp = process_terminate_current();
@@ -478,12 +480,28 @@ uint64_t syscall_handler_c(uint64_t syscall_num, uint64_t arg1, uint64_t arg2, u
const char *path = (const char *)arg2;
if (!path) return 0;
return fat32_exists(path) ? 1 : 0;
} else if (cmd == FS_CMD_GETCWD) {
char *buf = (char *)arg2;
int size = (int)arg3;
if (!buf) return -1;
fat32_get_current_dir(buf, size);
return 0;
} else if (cmd == FS_CMD_CHDIR) {
const char *path = (const char *)arg2;
if (!path) return -1;
return fat32_chdir(path) ? 0 : -1;
}
return 0;
} else if (syscall_num == 8) { // DEBUG_SERIAL_WRITE
extern void serial_write(const char *str);
serial_write((const char *)arg2);
return 0;
} else if (syscall_num == 10) { // SYS_KILL
// Simplified kill: just terminate current for now
uint64_t next_rsp = process_terminate_current();
extern void context_switch_to(uint64_t rsp);
context_switch_to(next_rsp);
while(1);
} else if (syscall_num == 9) { // SYS_SBRK
int incr = (int)arg1;
process_t *proc = process_get_current();
@@ -591,6 +609,68 @@ uint64_t syscall_handler_c(uint64_t syscall_num, uint64_t arg1, uint64_t arg2, u
if (!thumb) return -1;
for (int i=0; i<100*60; i++) dest[i] = thumb[i];
return 0;
} else if (cmd == 10) { // SYSTEM_CMD_CLEAR_SCREEN
extern void cmd_screen_clear(void);
cmd_screen_clear();
return 0;
} else if (cmd == 11) { // SYSTEM_CMD_RTC_GET
int *dt = (int *)arg2;
if (!dt) return -1;
extern void rtc_get_datetime(int *y, int *m, int *d, int *h, int *min, int *s);
rtc_get_datetime(&dt[0], &dt[1], &dt[2], &dt[3], &dt[4], &dt[5]);
return 0;
} else if (cmd == 12) { // SYSTEM_CMD_REBOOT
k_reboot();
return 0;
} else if (cmd == 13) { // SYSTEM_CMD_SHUTDOWN
k_shutdown();
return 0;
} else if (cmd == 14) { // SYSTEM_CMD_BEEP
int freq = (int)arg2;
int ms = (int)arg3;
if (freq > 0) {
int div = 1193180 / freq;
outb(0x43, 0xB6);
outb(0x42, div & 0xFF);
outb(0x42, (div >> 8) & 0xFF);
outb(0x61, inb(0x61) | 0x03);
}
// Sleep - kernel side
k_sleep(ms);
outb(0x61, inb(0x61) & 0xFC);
return 0;
} else if (cmd == 15) { // SYSTEM_CMD_MEMINFO
uint64_t *out = (uint64_t *)arg2;
if (!out) return -1;
MemStats stats = memory_get_stats();
out[0] = stats.total_memory;
out[1] = stats.used_memory;
return 0;
} else if (cmd == 16) { // SYSTEM_CMD_UPTIME
return wm_get_ticks();
} else if (cmd == 17) { // SYSTEM_CMD_PCI_LIST
typedef struct {
uint16_t vendor;
uint16_t device;
uint8_t class_code;
uint8_t subclass;
} pci_info_t;
pci_info_t *info = (pci_info_t *)arg2;
int idx = (int)arg3;
if (!info) {
pci_device_t pci_devs[128];
return pci_enumerate_devices(pci_devs, 128);
}
pci_device_t pci_devs[128];
int count = pci_enumerate_devices(pci_devs, 128);
if (idx >= 0 && idx < count) {
info->vendor = pci_devs[idx].vendor_id;
info->device = pci_devs[idx].device_id;
info->class_code = pci_devs[idx].class_code;
info->subclass = pci_devs[idx].subclass;
return 0;
}
return -1;
}
return -1;
}