static ke_handle process_create(struct sysreq_process_create * req)
{
struct ko_process *process;
struct ko_exe *ke_ld;
ke_handle handle;
if ((ke_ld = kp_exe_search_by_name("/os/i386/dl.sys")) == NULL)
goto err1;
if ((process = kp_run_user(ke_ld, req->cmdline)) == NULL)
goto err2;
if ((handle = ke_handle_create(KP_CURRENT())) == KE_INVALID_HANDLE)
goto err3;
kp_exe_put(ke_ld);
return handle;
err3:
//TODO: delete the process
err2:
//TODO: close the object
err1:
return KE_INVALID_HANDLE;
}
/**
@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");
}
