void _main()
{
mem_extent_t *ramext;
u8 sn[6];
u32 cpu_clk_hz = 0;
rtc_time_t tm;
s32 ret;
/*
This section runs with interrupts disabled. The boot console is not available in this
section.
*/
preempt_disable();
/* Copy kernel read/write data areas into kernel RAM */
memcpy(&_sdata, &_etext, &_edata - &_sdata); /* Copy .data section to kernel RAM */
bzero(&_sbss, &_ebss - &_sbss); /* Initialise .bss section */
/* Begin platform initialisation */
if(plat_init() != SUCCESS)
boot_early_fail(1);
if(plat_mem_detect() != SUCCESS) /* Detect installed RAM, initialise memory extents */
boot_early_fail(2);
/* Initialise kernel slabs */
slab_init(&_ebss); /* Slabs sit after the .bss section */
/* Initialise kernel heap */
kmeminit(g_slab_end, mem_get_highest_addr(MEM_EXTENT_KERN | MEM_EXTENT_RAM) - KERNEL_STACK_LEN);
/* Initialise user heap. Place it in the largest user RAM extent. */
ramext = mem_get_largest_extent(MEM_EXTENT_USER | MEM_EXTENT_RAM);
umeminit(ramext->base, ramext->base + ramext->len);
/* By default, all exceptions cause a context-dump followed by a halt. */
cpu_irq_init_table();
/* Initialise device tree */
if(dev_init() != SUCCESS)
boot_early_fail(3);
/*
It's not yet possible to initialise the real (platform) console because devices haven't
been enumerated and interrupts are disabled. In the meantime, create a temporary in-memory
kernel console device to capture output from the boot process.
*/
if(early_boot_console_init() != SUCCESS)
boot_early_fail(4);
printf("%s\nplatform: %s\n", g_warmup_message, plat_get_name());
printf("%uMB RAM detected\n", (mem_get_total_size(MEM_EXTENT_USER | MEM_EXTENT_RAM)
+ mem_get_total_size(MEM_EXTENT_KERN | MEM_EXTENT_RAM)) >> 20);
/* === Initialise peripherals - phase 2 === */
if(dev_enumerate() != SUCCESS)
boot_early_fail(5);
/* Initialise the console */
if(plat_console_init() != SUCCESS)
boot_early_fail(6);
ret = sched_init("[sys]"); /* Init scheduler and create system process */
/*
Enable interrupts and continue booting
*/
preempt_enable();
/* Copy the contents of the temporary console to the real console; close the temp console. */
early_boot_console_close();
/* Activate red LED while the boot process continues */
plat_led_off(LED_ALL);
plat_led_on(LED_RED);
/*
Device enumeration is done; interrupts are enabled, and the console should be functional.
Booting continues...
*/
/* Zero any user RAM extents. This happens after init'ing the DUART, because beeper. */
/*
put("Clearing user RAM: ");
mem_zero_extents(MEM_EXTENT_USER | MEM_EXTENT_RAM);
puts("done");
*/
/* Initialise the block cache, then scan mass-storage devices for partitions */
block_cache_init(2039);
partition_init();
boot_list_mass_storage();
boot_list_partitions();
/* ret is set by the call to sched_init(), above */
if(ret != SUCCESS)
printf("sched: init failed: %s\n", kstrerror(ret));
ret = vfs_init();
if(ret != SUCCESS)
printf("vfs: init failed: %s\n", kstrerror(ret));
/* Display approximate CPU clock speed */
if(plat_get_cpu_clock(&cpu_clk_hz) == SUCCESS)
printf("\nCPU fclk ~%2u.%uMHz\n", cpu_clk_hz / 1000000, (cpu_clk_hz % 1000000) / 100000);
/* Initialise tick handler */
tick_init();
/* Display memory information */
printf("%u bytes of kernel heap memory available\n"
"%u bytes of user memory available\n", kfreemem(), ufreemem());
/* Display platform serial number */
if(plat_get_serial_number(sn) == SUCCESS)
{
printf("Hardware serial number %02X%02X%02X%02X%02X%02X\n",
sn[0], sn[1], sn[2], sn[3], sn[4], sn[5]);
}
/* Display the current date and time */
if(get_time(&tm) == SUCCESS)
{
char timebuf[12], datebuf[32];
if((time_iso8601(&tm, timebuf, sizeof(timebuf)) == SUCCESS) &&
(date_long(&tm, datebuf, sizeof(datebuf)) == SUCCESS))
printf("%s %s\n", timebuf, datebuf);
else
puts("Date/time invalid - please set clock");
}
/* Create housekeeper process */
// proc_create(0, 0, "[hk]", NULL, housekeeper, 0, 0, PROC_TYPE_KERNEL, NULL, NULL);
/* Initialise networking system */
ret = net_init();
if(ret != SUCCESS)
printf("net: init failed: %s\n", kstrerror(ret));
/* Startup complete - activate green LED */
plat_led_off(LED_RED);
plat_led_on(LED_GREEN);
monitor(); /* start interactive "shell" thing */
cpu_halt(); /* should never be reached */
}
int
main (int argc, char *argv[])
{
GError *error = NULL;
gboolean config_migrated = FALSE;
char *config_migrate_msg;
int exit_code = EXIT_FAILURE;
/* We had LC_CTYPE before, LC_ALL includs LC_TYPE as well */
#ifdef HAVE_SETLOCALE
(void) setlocale (LC_ALL, "");
#endif
(void) bindtextdomain (PACKAGE, LOCALEDIR);
(void) textdomain (PACKAGE);
/* do this before args parsing */
str_init_strings (NULL);
if (!mc_args_parse (&argc, &argv, "mc", &error))
{
startup_exit_falure:
fprintf (stderr, _("Failed to run:\n%s\n"), error->message);
g_error_free (error);
g_free (mc_global.tty.shell);
startup_exit_ok:
str_uninit_strings ();
return exit_code;
}
/* do this before mc_args_show_info () to view paths in the --datadir-info output */
OS_Setup ();
if (!g_path_is_absolute (mc_config_get_home_dir ()))
{
error = g_error_new (MC_ERROR, 0, "%s: %s", _("Home directory path is not absolute"),
mc_config_get_home_dir ());
mc_event_deinit (NULL);
goto startup_exit_falure;
}
if (!mc_args_show_info ())
{
exit_code = EXIT_SUCCESS;
goto startup_exit_ok;
}
if (!events_init (&error))
goto startup_exit_falure;
mc_config_init_config_paths (&error);
if (error == NULL)
config_migrated = mc_config_migrate_from_old_place (&error, &config_migrate_msg);
if (error != NULL)
{
mc_event_deinit (NULL);
goto startup_exit_falure;
}
vfs_init ();
vfs_plugins_init ();
vfs_setup_work_dir ();
/* Set up temporary directory after VFS initialization */
mc_tmpdir ();
/* do this after vfs initialization due to mc_setctl() call in mc_setup_by_args() */
if (!mc_setup_by_args (argc, argv, &error))
{
vfs_shut ();
mc_event_deinit (NULL);
goto startup_exit_falure;
}
/* check terminal type
* $TEMR must be set and not empty
* mc_global.tty.xterm_flag is used in init_key() and tty_init()
* Do this after mc_args_handle() where mc_args__force_xterm is set up.
*/
mc_global.tty.xterm_flag = tty_check_term (mc_args__force_xterm);
/* NOTE: This has to be called before tty_init or whatever routine
calls any define_sequence */
init_key ();
/* Must be done before installing the SIGCHLD handler [[FIXME]] */
handle_console (CONSOLE_INIT);
#ifdef ENABLE_SUBSHELL
/* Don't use subshell when invoked as viewer or editor */
if (mc_global.mc_run_mode != MC_RUN_FULL)
mc_global.tty.use_subshell = FALSE;
if (mc_global.tty.use_subshell)
subshell_get_console_attributes ();
#endif /* ENABLE_SUBSHELL */
/* Install the SIGCHLD handler; must be done before init_subshell() */
init_sigchld ();
/* We need this, since ncurses endwin () doesn't restore the signals */
save_stop_handler ();
/* Must be done before init_subshell, to set up the terminal size: */
/* FIXME: Should be removed and LINES and COLS computed on subshell */
tty_init (!mc_args__nomouse, mc_global.tty.xterm_flag);
load_setup ();
/* start check mc_global.display_codepage and mc_global.source_codepage */
check_codeset ();
/* Removing this from the X code let's us type C-c */
load_key_defs ();
load_keymap_defs (!mc_args__nokeymap);
macros_list = g_array_new (TRUE, FALSE, sizeof (macros_t));
tty_init_colors (mc_global.tty.disable_colors, mc_args__force_colors);
mc_skin_init (&error);
if (error != NULL)
{
message (D_ERROR, _("Warning"), "%s", error->message);
g_error_free (error);
error = NULL;
}
dlg_set_default_colors ();
#ifdef ENABLE_SUBSHELL
/* Done here to ensure that the subshell doesn't */
/* inherit the file descriptors opened below, etc */
if (mc_global.tty.use_subshell)
init_subshell ();
#endif /* ENABLE_SUBSHELL */
/* Also done after init_subshell, to save any shell init file messages */
if (mc_global.tty.console_flag != '\0')
handle_console (CONSOLE_SAVE);
if (mc_global.tty.alternate_plus_minus)
application_keypad_mode ();
/* Done after subshell initialization to allow select and paste text by mouse
w/o Shift button in subshell in the native console */
init_mouse ();
/* Done after do_enter_ca_mode (tty_init) because in VTE bracketed mode is
separate for the normal and alternate screens */
enable_bracketed_paste ();
/* subshell_prompt is NULL here */
mc_prompt = (geteuid () == 0) ? "# " : "$ ";
if (config_migrated)
{
message (D_ERROR, _("Warning"), "%s", config_migrate_msg);
g_free (config_migrate_msg);
}
/* Program main loop */
if (mc_global.midnight_shutdown)
exit_code = EXIT_SUCCESS;
else
exit_code = do_nc ()? EXIT_SUCCESS : EXIT_FAILURE;
/* Save the tree store */
(void) tree_store_save ();
free_keymap_defs ();
/* Virtual File System shutdown */
vfs_shut ();
flush_extension_file (); /* does only free memory */
mc_skin_deinit ();
tty_colors_done ();
tty_shutdown ();
done_setup ();
if (mc_global.tty.console_flag != '\0' && (quit & SUBSHELL_EXIT) == 0)
handle_console (CONSOLE_RESTORE);
if (mc_global.tty.alternate_plus_minus)
numeric_keypad_mode ();
(void) signal (SIGCHLD, SIG_DFL); /* Disable the SIGCHLD handler */
if (mc_global.tty.console_flag != '\0')
handle_console (CONSOLE_DONE);
if (mc_global.mc_run_mode == MC_RUN_FULL && mc_args__last_wd_file != NULL
&& last_wd_string != NULL && !print_last_revert)
{
int last_wd_fd;
last_wd_fd = open (mc_args__last_wd_file, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL,
S_IRUSR | S_IWUSR);
if (last_wd_fd != -1)
{
ssize_t ret1;
int ret2;
ret1 = write (last_wd_fd, last_wd_string, strlen (last_wd_string));
ret2 = close (last_wd_fd);
(void) ret1;
(void) ret2;
}
}
g_free (last_wd_string);
g_free (mc_global.tty.shell);
done_key ();
if (macros_list != NULL)
{
guint i;
for (i = 0; i < macros_list->len; i++)
{
macros_t *macros;
macros = &g_array_index (macros_list, struct macros_t, i);
if (macros != NULL && macros->macro != NULL)
(void) g_array_free (macros->macro, FALSE);
}
(void) g_array_free (macros_list, TRUE);
}
int init(uint64_t magic, uint8_t *multiboot)
{
/* Setup Static Allocation System */
multiboot_info_t *mb_info = (multiboot_info_t*)multiboot;
TID_t startup_thread;
stalloc_init();
/* Setup video printing */
polltty_init();
kwrite("KUDOS - a skeleton OS for exploring OS concepts\n");
kwrite("===============================================\n");
kwrite("\n");
kwrite("KUDOS is heavily based on BUENOS.\n");
kwrite("\n");
kwrite("Copyright (C) 2015-2016 Troels Henriksen, Annie Jane Pinder,\n");
kwrite(" Niels Gustav Westphal Serup, Oleksandr Shturmov,\n");
kwrite(" Nicklas Warming Jacobsen.\n");
kwrite("\n");
kwrite("Copyright (C) 2014 Philip Meulengracht.\n");
kwrite("\n");
kwrite("Copyright (C) 2003-2012 Juha Aatrokoski, Timo Lilja,\n");
kwrite(" Leena Salmela, Teemu Takanen, Aleksi Virtanen.\n");
kwrite("\n");
kwrite("See the file COPYING for licensing details.\n");
kwrite("\n");
/* Setup GDT/IDT/Exceptions */
kprintf("Initializing interrupt handling\n");
interrupt_init(1);
/* Read boot args */
kprintf("Reading boot arguments\n");
bootargs_init((void*)(uint64_t)mb_info->cmdline);
/* Setup Memory */
kprintf("Initializing memory system\n");
physmem_init(multiboot);
vm_init();
/* Seed the random number generator. */
if (bootargs_get("randomseed") == NULL) {
_set_rand_seed(0);
} else {
int seed = atoi((char*)(uint64_t)bootargs_get("randomseed"));
kprintf("Seeding pseudorandom number generator with %i\n", seed);
_set_rand_seed(seed);
}
/* Setup Threading */
kprintf("Initializing threading table\n");
thread_table_init();
kprintf("Initializing sleep queue\n");
sleepq_init();
kprintf("Initializing semaphores\n");
semaphore_init();
/* Start scheduler */
kprintf("Initializing scheduler\n");
scheduler_init();
/* Setup Drivers */
kprintf("Initializing device drivers\n");
device_init();
/* Initialize modules */
kprintf("Initializing kernel modules\n");
modules_init();
kprintf("Initializing virtual filesystem\n");
vfs_init();
kprintf("Creating initialization thread\n");
startup_thread = thread_create(init_startup_thread, 0);
thread_run(startup_thread);
kprintf("Starting threading system and SMP\n");
/* Enter context switch, scheduler will be run automatically,
since thread_switch() behaviour is identical to timer tick
(thread timeslice is over). */
thread_switch();
return 0xDEADBEEF;
}
void vfs_setup(CallChain next) {
char *res_path, *storage_path, *cache_path;
get_core_paths(&res_path, &storage_path, &cache_path);
char *local_res_path = strfmt("%s%cresources", storage_path, vfs_get_syspath_separator());
vfs_syspath_normalize_inplace(local_res_path);
log_info("Resource path: %s", res_path);
log_info("Storage path: %s", storage_path);
log_info("Local resource path: %s", local_res_path);
log_info("Cache path: %s", cache_path);
struct mpoint_t {
const char *dest; const char *syspath; bool loadpaks; uint flags;
} mpts[] = {
// per-user directory, where configs, replays, screenshots, etc. get stored
{ "storage", storage_path, false, VFS_SYSPATH_MOUNT_MKDIR },
// system-wide directory, contains all of the game assets
{ "resdirs", res_path, true, VFS_SYSPATH_MOUNT_READONLY },
// subpath of storage, files here override the global assets
{ "resdirs", local_res_path, true, VFS_SYSPATH_MOUNT_MKDIR | VFS_SYSPATH_MOUNT_READONLY },
// per-user directory, to contain various cached resources to speed up loading times
{ "cache", cache_path, false, VFS_SYSPATH_MOUNT_MKDIR },
{NULL}
};
vfs_init();
// temporary union of the "real" directories
vfs_create_union_mountpoint("resdirs");
// temporary union of the packages (e.g. zip files)
vfs_create_union_mountpoint("respkgs");
// permanent union of respkgs and resdirs
// this way, files in any of the "real" directories always have priority over anything in packages
vfs_create_union_mountpoint("res");
for(struct mpoint_t *mp = mpts; mp->dest; ++mp) {
if(mp->loadpaks) {
// mount it to a temporary mountpoint to get a list of packages from this directory
if(!vfs_mount_syspath("tmp", mp->syspath, mp->flags)) {
log_fatal("Failed to mount '%s': %s", mp->syspath, vfs_get_error());
}
if(!vfs_query("tmp").is_dir) {
log_error("'%s' is not a directory", mp->syspath);
vfs_unmount("tmp");
continue;
}
// load all packages from this directory into the respkgs union
load_packages("tmp", "respkgs");
// now mount it to the intended destination, and remove the temporary mountpoint
vfs_mount_alias(mp->dest, "tmp");
vfs_unmount("tmp");
} else if(!vfs_mount_syspath(mp->dest, mp->syspath, mp->flags)) {
log_fatal("Failed to mount '%s': %s", mp->syspath, vfs_get_error());
}
}
vfs_mkdir_required("storage/replays");
vfs_mkdir_required("storage/screenshots");
free(local_res_path);
free(res_path);
free(storage_path);
free(cache_path);
// set up the final "res" union and get rid of the temporaries
vfs_mount_alias("res", "respkgs");
vfs_mount_alias("res", "resdirs");
// vfs_make_readonly("res");
vfs_unmount("resdirs");
vfs_unmount("respkgs");
run_call_chain(&next, NULL);
}
extern "C" int
main(stage2_args *args)
{
TRACE(("boot(): enter\n"));
if (heap_init(args) < B_OK)
panic("Could not initialize heap!\n");
TRACE(("boot(): heap initialized...\n"));
// set debug syslog default
#if KDEBUG_ENABLE_DEBUG_SYSLOG
gKernelArgs.keep_debug_output_buffer = true;
#endif
add_stage2_driver_settings(args);
platform_init_video();
// the main platform dependent initialisation
// has already taken place at this point.
if (vfs_init(args) < B_OK)
panic("Could not initialize VFS!\n");
dprintf("Welcome to the Haiku boot loader!\n");
bool mountedAllVolumes = false;
BootVolume bootVolume;
PathBlacklist pathBlacklist;
if (get_boot_file_system(args, bootVolume) != B_OK
|| (platform_boot_options() & BOOT_OPTION_MENU) != 0) {
if (!bootVolume.IsValid())
puts("\tno boot path found, scan for all partitions...\n");
if (mount_file_systems(args) < B_OK) {
// That's unfortunate, but we still give the user the possibility
// to insert a CD-ROM or just rescan the available devices
puts("Could not locate any supported boot devices!\n");
}
// ToDo: check if there is only one bootable volume!
mountedAllVolumes = true;
if (user_menu(bootVolume, pathBlacklist) < B_OK) {
// user requested to quit the loader
goto out;
}
}
if (bootVolume.IsValid()) {
// we got a volume to boot from!
status_t status;
while ((status = load_kernel(args, bootVolume)) < B_OK) {
// loading the kernel failed, so let the user choose another
// volume to boot from until it works
bootVolume.Unset();
if (!mountedAllVolumes) {
// mount all other file systems, if not already happened
if (mount_file_systems(args) < B_OK)
panic("Could not locate any supported boot devices!\n");
mountedAllVolumes = true;
}
if (user_menu(bootVolume, pathBlacklist) != B_OK
|| !bootVolume.IsValid()) {
// user requested to quit the loader
goto out;
}
}
// if everything is okay, continue booting; the kernel
// is already loaded at this point and we definitely
// know our boot volume, too
if (status == B_OK) {
if (bootVolume.IsPackaged()) {
packagefs_apply_path_blacklist(bootVolume.SystemDirectory(),
pathBlacklist);
}
register_boot_file_system(bootVolume);
if ((platform_boot_options() & BOOT_OPTION_DEBUG_OUTPUT) == 0)
platform_switch_to_logo();
load_modules(args, bootVolume);
load_driver_settings(args, bootVolume.RootDirectory());
// apply boot settings
apply_boot_settings();
// set up kernel args version info
gKernelArgs.kernel_args_size = sizeof(kernel_args);
gKernelArgs.version = CURRENT_KERNEL_ARGS_VERSION;
// clone the boot_volume KMessage into kernel accessible memory
// note, that we need to 4 byte align the buffer and thus allocate
// 3 more bytes
void* buffer = kernel_args_malloc(gBootVolume.ContentSize() + 3);
if (!buffer) {
panic("Could not allocate memory for the boot volume kernel "
"arguments");
}
buffer = (void*)(((addr_t)buffer + 3) & ~(addr_t)0x3);
memcpy(buffer, gBootVolume.Buffer(), gBootVolume.ContentSize());
gKernelArgs.boot_volume = buffer;
gKernelArgs.boot_volume_size = gBootVolume.ContentSize();
// ToDo: cleanup, heap_release() etc.
heap_print_statistics();
platform_start_kernel();
}
}
out:
heap_release(args);
return 0;
}
void kernel_init(multiboot_info_t *mboot_info)
{
extern char __start_bss[], __stop_bss[];
memset(__start_bss, 0, __stop_bss - __start_bss);
/* mboot_info is a physical address. while some arches currently have the
* lower memory mapped, everyone should have it mapped at kernbase by now.
* also, it might be in 'free' memory, so once we start dynamically using
* memory, we may clobber it. */
multiboot_kaddr = (struct multiboot_info*)((physaddr_t)mboot_info
+ KERNBASE);
extract_multiboot_cmdline(multiboot_kaddr);
cons_init();
print_cpuinfo();
printk("Boot Command Line: '%s'\n", boot_cmdline);
exception_table_init();
cache_init(); // Determine systems's cache properties
pmem_init(multiboot_kaddr);
kmem_cache_init(); // Sets up slab allocator
kmalloc_init();
hashtable_init();
radix_init();
cache_color_alloc_init(); // Inits data structs
colored_page_alloc_init(); // Allocates colors for agnostic processes
acpiinit();
topology_init();
kthread_init(); /* might need to tweak when this happens */
vmr_init();
file_init();
page_check();
idt_init();
kernel_msg_init();
timer_init();
vfs_init();
devfs_init();
train_timing();
kb_buf_init(&cons_buf);
arch_init();
block_init();
enable_irq();
run_linker_funcs();
/* reset/init devtab after linker funcs 3 and 4. these run NIC and medium
* pre-inits, which need to happen before devether. */
devtabreset();
devtabinit();
#ifdef CONFIG_EXT2FS
mount_fs(&ext2_fs_type, "/dev/ramdisk", "/mnt", 0);
#endif /* CONFIG_EXT2FS */
#ifdef CONFIG_ETH_AUDIO
eth_audio_init();
#endif /* CONFIG_ETH_AUDIO */
get_coreboot_info(&sysinfo);
booting = 0;
#ifdef CONFIG_RUN_INIT_SCRIPT
if (run_init_script()) {
printk("Configured to run init script, but no script specified!\n");
manager();
}
#else
manager();
#endif
}
int main_loop(struct multiboot_info *boot_info)
{
_kclear();
syscall_init();
module_start = (char*) *((unsigned int*)boot_info->mods_addr);
module_end = *((unsigned int*)(boot_info->mods_addr+4));
_kcolor(BRIGHT_GREEN);
_kputs(DREAMOS_VER);
_kcolor(WHITE);
_kputs(LNG_SITE);
_kcolor(BRIGHT_BLUE);
_kputs(SITEURL);
_kputs("\n");
_kcolor(WHITE);
_kputs("\n");
_kputs(LNG_GDT);
init_gdt();
_kprintOK();
outportb(0xFF, MASTER_PORT_1);
outportb(0xFF, SLAVE_PORT_1);
_kputs(LNG_IDT);
asm("cli");
init_idt();
_kprintOK();
_kputs(LNG_PIC8259);
init_IRQ();
_kprintOK();
set_memorysize((boot_info->mem_upper+boot_info->mem_lower)*1024);
init_mem();
asm("sti");
_kprintOK();
init_paging();
_kprintOK();
printf("Memory (upper) amount-> %d Mb \n", boot_info->mem_upper/1024);
printf("Memory (lower) amount-> %d kb \n", boot_info->mem_lower);
/** Alloc and fill CPUID structure */
sinfo = kmalloc(sizeof(struct cpuinfo_generic));
get_cpuid (sinfo);
vfs_init();
initfs_init();
if(boot_info->mods_count > 0) printf("Found n. %d Modules\n", boot_info->mods_count);
printf("\n");
tasks_init();
init_scheduler();
_kprintOK();
printf(LNG_PIT8253);
printf("----\n");
printf(LNG_SHELL);
_kprintOK();
printf("[+] Address: 0x%x\n", &end);
printf("\n");
dbg_bochs_print((const unsigned char*)"DreamOS Debug String for Bochs\n");
#ifdef BOCHS_DEBUG
dbg_bochs_print((const unsigned char*)"DreamOS Debug String for Bochs\n");
#endif
configure_PIT ();
new_task("idle", idle);
new_task("dreamshell", shell);
return 0;
}
void
fs_init(void) {
vfs_init();
dev_init();
pipe_init();
}
// Real entry point of the OS :
void init() {
unsigned int freq;
interrupt_init();
earlyterm_init();
earlyterm_clear();
kbd_init();
rtc_init();
time_init();
earlyterm_write("Kernel initialization...\n");
set_kernel_print(&earlyterm_write);
printk(LOG_INFO, "cmd args: '%s'\n", &cmdargs_begin);
cmdline_parse(&cmdargs_begin, 1024);
mmu_init();
pm_init_pages();
stimer_init();
hwkbd_start_periodic_update();
DBG_WAIT;
interrupt_inhibit_all(0);
// console initialisation as soon as possible
dev_init();
// add TTY device (on major 4)
ttydev_device.init();
dev_register_device(&ttydev_device, 4);
// add virtual terminal TTYs
vt_init();
// USB initialisation
usb_init();
// add usb-acm TTY
acm_usb_init();
DBG_WAIT;
// will be the last message displayed on early console
printk(LOG_INFO, "Switching screen to tty1...\n The display will be cleared.\n");
console_make_active();
// in all cases, Virtual Terminals should be made active (tty1)
DBG_WAIT;
vt_set_active(0);
// need to be changed for "overclocking" :
//freq_change(FREQ_STC_4, FREQ_DIV_1, FREQ_DIV_4);
freq_time_calibrate();
freq = freq_get_internal_hz();
printk(LOG_INFO, "CPU freq : %d.%dMHz\n", freq/1000000, (freq/100000)%10);
freq = freq_get_peripheral_hz();
printk(LOG_INFO, "Peripheral freq : %d.%dMHz\n", freq/1000000, (freq/100000)%10);
// initialize sysctl tables
ctl_init();
//test_keyboard_int();
//test_virtual_mem();
//asm volatile ("trapa #50");
//DBG_WAIT;
// Initializing VFS and device sub-sytems, mount platform filesystems,
// register platform devices...
vfs_init();
vfs_file_init();
vfs_register_fs(&smemfs_file_system, VFS_REGISTER_STATIC);
vfs_register_fs(&protofs_file_system, VFS_REGISTER_STATIC);
vfs_mount("protofs", NULL, VFS_MOUNT_ROOT);
vfs_create("/", "dev", INODE_TYPE_PARENT, INODE_FLAG_READ | INODE_FLAG_EXEC, 0);
vfs_create("/dev", "tty1", INODE_TYPE_DEV, INODE_FLAG_WRITE, 0x00040000);
vfs_create("/dev", "tty2", INODE_TYPE_DEV, INODE_FLAG_WRITE, 0x00040001);
vfs_create("/dev", "serial", INODE_TYPE_DEV, INODE_FLAG_WRITE, 0x00030000);
vfs_create("/dev", "console", INODE_TYPE_DEV, INODE_FLAG_WRITE,
console_get_device());
DBG_WAIT;
// keyboard input for virtual terminals
kbd_set_kstroke_handler(&vt_key_stroke);
// mount additional filesystems
vfs_create("/", "mnt", INODE_TYPE_PARENT, INODE_FLAG_WRITE, 0);
vfs_create("/mnt", "smem", INODE_TYPE_PARENT, INODE_FLAG_WRITE, 0);
vfs_mount("smemfs", "/mnt/smem", VFS_MOUNT_NORMAL);
DBG_WAIT;
// set /dev/display device
_display_device.init();
dev_register_device(&_display_device, 0x20);
vfs_create("/dev", "display", INODE_TYPE_DEV, INODE_FLAG_WRITE, 0x00200001);
// direct keyboard device on major 0x21
fxkeyboard_device.init();
dev_register_device(&fxkeyboard_device, 0x21);
vfs_create("/dev", "keyboard", INODE_TYPE_DEV, INODE_FLAG_WRITE, 0x00210000);
DBG_WAIT;
//test_keymatrix();
// test_keyboard();
/*while(1) {
char c;
if(vfs_read(console, &c, 1) == 1) {
vfs_write(console, &c, 1);
}
}*/
DBG_WAIT;
//test_vfs();
//test_sdcard();
//test_sleep_funcs();
// EEPROM-related code commented to avoid useless write cycles ;)
//test_eeprom();
/*char mybuf[128];
int len;
len = usb_receive(USB_EP_ADDR_EP1OUT, mybuf, 10, 0);
printk(LOG_DEBUG, "usb_receive ret=%d\n", len);
if(len > 0) {
mybuf[len] = '\0';
printk(LOG_DEBUG, "content = '%s'\n", mybuf);
}
while(!_magic_lock);
set_kernel_print(&print_usb_ep2);
test_vfs();
*/
// memory area subsystem
mem_area_init();
process_init();
sched_init();
test_process();
printk(LOG_WARNING, "End of init job, sleeping...\n");
while(1)
printk(LOG_WARNING, "IER: 0x%x 0x%x\n", USB.IFR0.BYTE, USB.IFR1.BYTE);
}
void main()
{
log_init();
fork_init();
/* fork_init() will directly jump to restored thread context if we are a fork child */
mm_init();
install_syscall_handler();
heap_init();
signal_init();
process_init();
tls_init();
vfs_init();
dbt_init();
/* Parse command line */
const char *cmdline = GetCommandLineA();
int len = strlen(cmdline);
if (len > BLOCK_SIZE) /* TODO: Test if there is sufficient space for argv[] array */
{
kprintf("Command line too long.\n");
process_exit(1, 0);
}
startup = mm_mmap(NULL, BLOCK_SIZE, PROT_READ | PROT_WRITE, MAP_ANONYMOUS,
INTERNAL_MAP_TOPDOWN | INTERNAL_MAP_NORESET, NULL, 0);
*(uintptr_t*) startup = 1;
char *current_startup_base = startup + sizeof(uintptr_t);
memcpy(current_startup_base, cmdline, len + 1);
char *envbuf = (char *)ALIGN_TO(current_startup_base + len + 1, sizeof(void*));
char *env0 = envbuf;
ENV("TERM=xterm");
char *env1 = envbuf;
ENV("HOME=/root");
char *env2 = envbuf;
ENV("DISPLAY=127.0.0.1:0");
char *env3 = envbuf;
ENV("PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/bin:/sbin");
int argc = 0;
char **argv = (char **)ALIGN_TO(envbuf, sizeof(void*));
/* Parse command line */
int in_quote = 0;
char *j = current_startup_base;
for (char *i = current_startup_base; i <= current_startup_base + len; i++)
if (!in_quote && (*i == ' ' || *i == '\t' || *i == '\r' || *i == '\n' || *i == 0))
{
*i = 0;
if (i > j)
argv[argc++] = j;
j = i + 1;
}
else if (*i == '"')
{
*i = 0;
if (in_quote)
argv[argc++] = j;
in_quote = !in_quote;
j = i + 1;
}
argv[argc] = NULL;
char **envp = argv + argc + 1;
int env_size = 4;
envp[0] = env0;
envp[1] = env1;
envp[2] = env2;
envp[3] = env3;
envp[4] = NULL;
char *buffer_base = (char*)(envp + env_size + 1);
const char *filename = NULL;
for (int i = 1; i < argc; i++)
{
if (argv[i][0] == '-')
{
}
else if (!filename)
filename = argv[i];
}
if (filename)
do_execve(filename, argc - 1, argv + 1, env_size, envp, buffer_base, NULL);
kprintf("Usage: flinux <executable> [arguments]\n");
process_exit(1, 0);
}
void init(void)
{
TID_t startup_thread;
int numcpus;
/* Initialize polling TTY driver for kprintf() usage. */
polltty_init();
kwrite("BUENOS is a University Educational Nutshell Operating System\n");
kwrite("==========================================================\n");
kwrite("\n");
kwrite("Copyright (C) 2003-2006 Juha Aatrokoski, Timo Lilja,\n");
kwrite(" Leena Salmela, Teemu Takanen, Aleksi Virtanen\n");
kwrite("See the file COPYING for licensing details.\n");
kwrite("\n");
kwrite("Initializing memory allocation system\n");
kmalloc_init();
kwrite("Reading boot arguments\n");
bootargs_init();
/* Seed the random number generator. */
if (bootargs_get("randomseed") == NULL) {
_set_rand_seed(0);
} else {
int seed = atoi(bootargs_get("randomseed"));
kprintf("Seeding pseudorandom number generator with %i\n", seed);
_set_rand_seed(seed);
}
numcpus = cpustatus_count();
kprintf("Detected %i CPUs\n", numcpus);
KERNEL_ASSERT(numcpus <= CONFIG_MAX_CPUS);
kwrite("Initializing interrupt handling\n");
interrupt_init(numcpus);
kwrite("Initializing threading system\n");
thread_table_init();
kwrite("Initializing processing system\n");
process_init();
kwrite("Initializing sleep queue\n");
sleepq_init();
kwrite("Initializing semaphores\n");
semaphore_init();
kwrite("Initializing device drivers\n");
device_init();
kprintf("Initializing virtual filesystem\n");
vfs_init();
kwrite("Initializing scheduler\n");
scheduler_init();
kwrite("Initializing virtual memory\n");
vm_init();
kprintf("Creating initialization thread\n");
startup_thread = thread_create(&init_startup_thread, 0);
thread_run(startup_thread);
kprintf("Starting threading system and SMP\n");
/* Let other CPUs run */
kernel_bootstrap_finished = 1;
_interrupt_clear_bootstrap();
_interrupt_enable();
/* Enter context switch, scheduler will be run automatically,
since thread_switch() behaviour is identical to timer tick
(thread timeslice is over). */
thread_switch();
/* We should never get here */
KERNEL_PANIC("Threading system startup failed.");
}