/**
@brief Wait fss in dds
*/
static int fss_ops_wait()
{
/* Just yield current thread, giving other a chance */
kt_schedule();
//TODO: test thread dieing...
return 0;
}
void __init __noreturn hal_main()
{
/* 开辟鸿蒙,谁为情种？最初的一切*/
km_cluster_init();
build_ram_list();
/* Go back to ARCH, we have inited the basic paging allocator */
hal_arch_init(HAL_ARCH_INIT_PHASE_EARLY);
/* KERNEL */
kc_init();
kp_init();
ks_init();
hal_malloc_init();
hal_dpc_init();
hal_time_init();
hal_arch_init(HAL_ARCH_INIT_PHASE_MIDDLE);
hal_console_init();
printk("GridOS 启动中...\n");
ke_module_entry();
local_irq_enable();
/* Driver pakcage loading, and it must be the last file */
hal_boot_module_loop(start_driver_ctx);
if (last_package_id == driver_package_id && driver_pakcage)
{
ke_startup_driver_process(driver_pakcage, driver_size);
}
else
{
if (driver_size)
printk("Driver package is not the last one, BSS in it may overlay the useful file data after it...");
else
printk("No driver package was loaded...");
}
printk("Hal startup ok.\n");
kernel_test();
while (1)
{
kt_schedule_driver();
/* If have no process, sleep */
if (!kt_schedule_running_count())
dumy_idle_ops(0);
else
kt_schedule();
}
}
static void file_thread(void *para)
{
struct file_process_startup_para *package = para;
printk("File thread startup, startup file %x, size %d, ks addr %x...", package->data, package->size, package->ks_start);
memcpy((void*)package->ks_start, package->data, package->size);
package->data = NULL;
printk("Copy ok.\n");
while(1)
{
kt_schedule();
}
}
/**
@brief run startup process
*/
void ke_run_first_user_process(void *data, int size, char *cmdline)
{
char *first_space, first_exe_name[128] = {0};
struct ko_section *ks;
void *entry_address;
struct ko_exe *kee, *ke_tmp = kp_exe_create_temp();
first_space = strchr(cmdline, ' ');
if (!first_space)
goto err;
if (first_space - cmdline >= sizeof(first_exe_name) - sizeof(xchar))
goto err;
strncpy(first_exe_name, cmdline, first_space - cmdline);
/* Kernel file process, because early we cannot copy lv2 table of driver */
kernel_file_process = kp_create(KP_CPL0_FAKE, "操作系统文件进程");
if (!kernel_file_process)
goto err;
printk("启动用户第一个可执行文件%x, size %d.\n", data, size);
if (size == 0/*no file*/ || size == 1/*buffer error*/)
goto err;
if (elf_analyze(data, size, &entry_address, KO_EXE_TO_PRIVATE(ke_tmp)) == false)
goto err;
ks = ks_create(kp_get_file_process(), KS_TYPE_PRIVATE, 0, size, KM_PROT_READ|KM_PROT_WRITE);
if (!ks)
goto err;
kee = kp_exe_create_from_file(first_exe_name, ks, KO_EXE_TO_PRIVATE(ke_tmp), entry_address);
if (!kee)
goto err;
/* But this is a special one, we have to fill the data on it */
do {
struct kt_thread_creating_context ctx = {0};
struct file_process_startup_para package;
package.ks_start = ks->node.start;
package.size = size;
package.data = data;
ctx.thread_entry = file_thread;
ctx.flags = KT_CREATE_RUN;
ctx.para = (unsigned long)&package;
if (kt_create(kernel_file_process, &ctx) == NULL)
goto err;
/* Wait it to finish */
while (package.data)
kt_schedule();
} while(0);
/* OK, create the process */
if (kp_run_user(kee, ++first_space/*Real application*/) == false)
goto err;
return;
err:
printk("启动第一可执行文件失败。\n");
}
static void goto_idle()
{
kt_schedule();
}
void __noreturn kt_delete_current()
{
//TODO
TODO("");
while (1) kt_schedule();
}