void nt_init(void) { #ifdef SECURE_CD { char temp[512]; extern char gcurr_drive; if(!GetCurrentDirectory(512,temp)) ExitProcess((DWORD)-1); gcurr_drive=temp[0]; } #endif SECURE_CD init_stdio(); nt_init_signals(); nt_term_init(); init_hb_subst(); setlocale(LC_ALL,""); init_shell_dll(); init_plister(); fork_init(); init_clipboard(); return; }
asmlinkage void __init start_kernel(void) { char * command_line; extern struct kernel_param __start___param[], __stop___param[]; smp_setup_processor_id(); /* * Need to run as early as possible, to initialize the * lockdep hash: */ lockdep_init(); debug_objects_early_init(); /* * Set up the the initial canary ASAP: */ boot_init_stack_canary(); cgroup_init_early(); local_irq_disable(); early_boot_irqs_off(); early_init_irq_lock_class(); /* * Interrupts are still disabled. Do necessary setups, then * enable them */ lock_kernel(); tick_init(); boot_cpu_init(); page_address_init(); printk(KERN_NOTICE "%s", linux_banner); setup_arch(&command_line); mm_init_owner(&init_mm, &init_task); setup_command_line(command_line); setup_nr_cpu_ids(); setup_per_cpu_areas(); smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */ build_all_zonelists(NULL); page_alloc_init(); printk(KERN_NOTICE "Kernel command line: %s\n", boot_command_line); //[email protected] 2011.11.14 begin //support lcd compatible //reviewed by [email protected] #if defined(CONFIG_LCD_DRV_ALL) char *p = strstr(boot_command_line, "lcd="); if (p) { lcd_drv_index = p[4] - 'A'; printk("lcd index = %d", lcd_drv_index); } #endif //[email protected] 2011.11.14 end parse_early_param(); parse_args("Booting kernel", static_command_line, __start___param, __stop___param - __start___param, &unknown_bootoption); /* * These use large bootmem allocations and must precede * kmem_cache_init() */ pidhash_init(); vfs_caches_init_early(); sort_main_extable(); trap_init(); mm_init(); /* * Set up the scheduler prior starting any interrupts (such as the * timer interrupt). Full topology setup happens at smp_init() * time - but meanwhile we still have a functioning scheduler. */ sched_init(); /* * Disable preemption - early bootup scheduling is extremely * fragile until we cpu_idle() for the first time. */ preempt_disable(); if (!irqs_disabled()) { printk(KERN_WARNING "start_kernel(): bug: interrupts were " "enabled *very* early, fixing it\n"); local_irq_disable(); } rcu_init(); radix_tree_init(); /* init some links before init_ISA_irqs() */ early_irq_init(); init_IRQ(); prio_tree_init(); init_timers(); hrtimers_init(); softirq_init(); timekeeping_init(); time_init(); profile_init(); if (!irqs_disabled()) printk(KERN_CRIT "start_kernel(): bug: interrupts were " "enabled early\n"); early_boot_irqs_on(); local_irq_enable(); /* Interrupts are enabled now so all GFP allocations are safe. */ gfp_allowed_mask = __GFP_BITS_MASK; kmem_cache_init_late(); /* * HACK ALERT! This is early. We're enabling the console before * we've done PCI setups etc, and console_init() must be aware of * this. But we do want output early, in case something goes wrong. */ console_init(); if (panic_later) panic(panic_later, panic_param); lockdep_info(); /* * Need to run this when irqs are enabled, because it wants * to self-test [hard/soft]-irqs on/off lock inversion bugs * too: */ locking_selftest(); #ifdef CONFIG_BLK_DEV_INITRD if (initrd_start && !initrd_below_start_ok && page_to_pfn(virt_to_page((void *)initrd_start)) < min_low_pfn) { printk(KERN_CRIT "initrd overwritten (0x%08lx < 0x%08lx) - " "disabling it.\n", page_to_pfn(virt_to_page((void *)initrd_start)), min_low_pfn); initrd_start = 0; } #endif page_cgroup_init(); enable_debug_pagealloc(); kmemtrace_init(); kmemleak_init(); debug_objects_mem_init(); idr_init_cache(); setup_per_cpu_pageset(); numa_policy_init(); if (late_time_init) late_time_init(); sched_clock_init(); calibrate_delay(); pidmap_init(); anon_vma_init(); #ifdef CONFIG_X86 if (efi_enabled) efi_enter_virtual_mode(); #endif thread_info_cache_init(); cred_init(); fork_init(totalram_pages); proc_caches_init(); buffer_init(); key_init(); security_init(); dbg_late_init(); vfs_caches_init(totalram_pages); signals_init(); /* rootfs populating might need page-writeback */ page_writeback_init(); #ifdef CONFIG_PROC_FS proc_root_init(); #endif cgroup_init(); cpuset_init(); taskstats_init_early(); delayacct_init(); check_bugs(); acpi_early_init(); /* before LAPIC and SMP init */ sfi_init_late(); ftrace_init(); /* Do the rest non-__init'ed, we're now alive */ rest_init(); }
void main() { win7compat_init(); log_init(); fork_init(); /* fork_init() will directly jump to restored thread context if we are a fork child */ mm_init(); flags_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 */ { init_subsystems(); 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 | INTERNAL_MAP_VIRTUALALLOC, 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; int arg_start; for (int i = 1; i < argc; i++) { if (!strcmp(argv[i], "--session-id")) { if (++i < argc) { int len = strlen(argv[i]); if (len >= MAX_SESSION_ID_LEN) { init_subsystems(); kprintf("--session-id: Session ID too long.\n"); process_exit(1, 0); } for (int j = 0; j < len; j++) { char ch = argv[i][j]; if (!((ch >= '0' && ch <= '9') || (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || ch == '_' || ch == '-')) { init_subsystems(); kprintf("--session-id: Invalid characters.\n"); process_exit(1, 0); } } strcpy(cmdline_flags->global_session_id, argv[i]); } else { init_subsystems(); kprintf("--session-id: No ID given.\n"); process_exit(1, 0); } } else if (!strcmp(argv[i], "--help") || !strcmp(argv[i], "-h")) { init_subsystems(); print_help(); process_exit(1, 0); } else if (!strcmp(argv[i], "--usage")) { init_subsystems(); print_usage(); process_exit(1, 0); } else if (!strcmp(argv[i], "--version") || !strcmp(argv[i], "-v")) { init_subsystems(); print_version(); process_exit(1, 0); } else if (!strcmp(argv[i], "--dbt-trace")) cmdline_flags->dbt_trace = true; else if (!strcmp(argv[i], "--dbt-trace-all")) { cmdline_flags->dbt_trace = true; cmdline_flags->dbt_trace_all = true; } else if (argv[i][0] == '-') { init_subsystems(); kprintf("Unrecognized option: %s\n", argv[i]); process_exit(1, 0); } else if (!filename) { filename = argv[i]; arg_start = i; break; } } init_subsystems(); if (filename) { install_syscall_handler(); int r = do_execve(filename, argc - arg_start, argv + arg_start, env_size, envp, buffer_base, NULL); if (r == -L_ENOENT) { kprintf("Executable not found."); process_exit(1, 0); } } print_usage(); process_exit(1, 0); }
asmlinkage void __init start_kernel(void) { char * command_line; extern struct kernel_param __start___param[], __stop___param[]; smp_setup_processor_id(); /* * Need to run as early as possible, to initialize the * lockdep hash: */ unwind_init(); lockdep_init(); local_irq_disable(); early_boot_irqs_off(); early_init_irq_lock_class(); /* * Interrupts are still disabled. Do necessary setups, then * enable them */ lock_kernel(); boot_cpu_init(); page_address_init(); printk(KERN_NOTICE); printk(linux_banner); setup_arch(&command_line); setup_per_cpu_areas(); smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */ /* * Set up the scheduler prior starting any interrupts (such as the * timer interrupt). Full topology setup happens at smp_init() * time - but meanwhile we still have a functioning scheduler. */ sched_init(); /* * Disable preemption - early bootup scheduling is extremely * fragile until we cpu_idle() for the first time. */ preempt_disable(); build_all_zonelists(); page_alloc_init(); printk(KERN_NOTICE "Kernel command line: %s\n", saved_command_line); parse_early_param(); parse_args("Booting kernel", command_line, __start___param, __stop___param - __start___param, &unknown_bootoption); sort_main_extable(); trap_init(); rcu_init(); init_IRQ(); pidhash_init(); init_timers(); hrtimers_init(); softirq_init(); timekeeping_init(); time_init(); profile_init(); if (!irqs_disabled()) printk("start_kernel(): bug: interrupts were enabled early\n"); early_boot_irqs_on(); local_irq_enable(); /* * HACK ALERT! This is early. We're enabling the console before * we've done PCI setups etc, and console_init() must be aware of * this. But we do want output early, in case something goes wrong. */ console_init(); if (panic_later) panic(panic_later, panic_param); lockdep_info(); /* * Need to run this when irqs are enabled, because it wants * to self-test [hard/soft]-irqs on/off lock inversion bugs * too: */ locking_selftest(); #ifdef CONFIG_BLK_DEV_INITRD if (initrd_start && !initrd_below_start_ok && initrd_start < min_low_pfn << PAGE_SHIFT) { printk(KERN_CRIT "initrd overwritten (0x%08lx < 0x%08lx) - " "disabling it.\n",initrd_start,min_low_pfn << PAGE_SHIFT); initrd_start = 0; } #endif vfs_caches_init_early(); cpuset_init_early(); mem_init(); kmem_cache_init(); setup_per_cpu_pageset(); numa_policy_init(); if (late_time_init) late_time_init(); calibrate_delay(); pidmap_init(); pgtable_cache_init(); prio_tree_init(); anon_vma_init(); #ifdef CONFIG_X86 if (efi_enabled) efi_enter_virtual_mode(); #endif fork_init(num_physpages); proc_caches_init(); buffer_init(); unnamed_dev_init(); key_init(); security_init(); vfs_caches_init(num_physpages); radix_tree_init(); signals_init(); /* rootfs populating might need page-writeback */ page_writeback_init(); #ifdef CONFIG_PROC_FS proc_root_init(); #endif cpuset_init(); taskstats_init_early(); delayacct_init(); check_bugs(); acpi_early_init(); /* before LAPIC and SMP init */ /* Do the rest non-__init'ed, we're now alive */ rest_init(); }
asmlinkage void __init start_kernel(void) { char * command_line; extern char saved_command_line[]; /* * Interrupts are still disabled. Do necessary setups, then * enable them */ lock_kernel(); printk(linux_banner); setup_arch(&command_line); printk("Kernel command line: %s\n", saved_command_line); parse_options(command_line); trap_init(); init_IRQ(); sched_init(); softirq_init(); time_init(); /* * HACK ALERT! This is early. We're enabling the console before * we've done PCI setups etc, and console_init() must be aware of * this. But we do want output early, in case something goes wrong. */ console_init(); #ifdef CONFIG_MODULES init_modules(); #endif if (prof_shift) { unsigned int size; /* only text is profiled */ prof_len = (unsigned long) &_etext - (unsigned long) &_stext; prof_len >>= prof_shift; size = prof_len * sizeof(unsigned int) + PAGE_SIZE-1; prof_buffer = (unsigned int *) alloc_bootmem(size); } kmem_cache_init(); sti(); calibrate_delay(); #ifdef CONFIG_BLK_DEV_INITRD if (initrd_start && !initrd_below_start_ok && initrd_start < min_low_pfn << PAGE_SHIFT) { printk(KERN_CRIT "initrd overwritten (0x%08lx < 0x%08lx) - " "disabling it.\n",initrd_start,min_low_pfn << PAGE_SHIFT); initrd_start = 0; } #endif mem_init(); kmem_cache_sizes_init(); pgtable_cache_init(); /* * For architectures that have highmem, num_mappedpages represents * the amount of memory the kernel can use. For other architectures * it's the same as the total pages. We need both numbers because * some subsystems need to initialize based on how much memory the * kernel can use. */ if (num_mappedpages == 0) num_mappedpages = num_physpages; fork_init(num_mappedpages); proc_caches_init(); vfs_caches_init(num_physpages); buffer_init(num_physpages); page_cache_init(num_physpages); #if defined(CONFIG_ARCH_S390) ccwcache_init(); #endif signals_init(); #ifdef CONFIG_PROC_FS proc_root_init(); #endif check_bugs(); printk("POSIX conformance testing by UNIFIX\n"); /* * We count on the initial thread going ok * Like idlers init is an unlocked kernel thread, which will * make syscalls (and thus be locked). */ smp_init(); #if defined(CONFIG_SYSVIPC) ipc_init(); #endif rest_init(); }
int main(int argc, char **argv) { char **t; int t0; #ifdef USE_LOCALE setlocale(LC_ALL, ""); #endif #ifdef WINNT /* Do not use __try if compiling with MinGW */ #ifndef MINGW __try { #endif /* MINGW */ /* Start NT if we are compiling with MinGW, don't otherwise */ #ifdef MINGW nt_init(); #else //nt_init(); #endif /* MINGW */ fork_init(); /* Do not use __except if compiling with MinGW */ #ifndef MINGW }__except(1) { dprintf("damn 0x%08x\n",GetExceptionCode()); return 1; }; #endif /* MINGW */ #endif /* WINNT */ global_permalloc(); /* * Provisionally set up the type table to allow metafication. * This will be done properly when we have decided if we are * interactive */ typtab['\0'] |= IMETA; typtab[STOUC(Meta) ] |= IMETA; typtab[STOUC(Marker)] |= IMETA; for (t0 = (int)STOUC(Pound); t0 <= (int)STOUC(Nularg); t0++) typtab[t0] |= ITOK | IMETA; for (t = argv; *t; *t = metafy(*t, -1, META_ALLOC), t++); #ifndef WINNT if (!(zsh_name = strrchr(argv[0], '/'))) #else if (!(zsh_name = strrchr(argv[0], '/')) && !(zsh_name = strrchr(argv[0], '\\')) && !(zsh_name = strchr(argv[0],':')) // !(argv[0][1] ==':') ) #endif /* WINNT */ zsh_name = argv[0]; else zsh_name++; if (*zsh_name == '-') zsh_name++; fdtable_size = OPEN_MAX; fdtable = zcalloc(fdtable_size); emulate(zsh_name, 1); /* initialises most options */ opts[LOGINSHELL] = (**argv == '-'); opts[MONITOR] = 1; /* may be unset in init_io() */ opts[PRIVILEGED] = (getuid() != geteuid() || getgid() != getegid()); opts[USEZLE] = 1; /* may be unset in init_io() */ parseargs(argv); /* sets INTERACTIVE, SHINSTDIN and SINGLECOMMAND */ SHTTY = -1; init_io(); setupvals(); init_signals(); global_heapalloc(); run_init_scripts(); init_misc(); for (;;) { do loop(1,0); while (tok != ENDINPUT); if (!(isset(IGNOREEOF) && interact)) { #if 0 if (interact) fputs(islogin ? "logout\n" : "exit\n", shout); #endif zexit(lastval, 0); continue; } noexitct++; if (noexitct >= 10) { stopmsg = 1; zexit(lastval, 0); } zerrnam("zsh", (!islogin) ? "use 'exit' to exit." : "use 'logout' to logout.", NULL, 0); } return 0; /* WINNT change, patch I think */ }
asmlinkage void __init start_kernel(void) { char * command_line; extern char saved_command_line[]; extern struct kernel_param __start___param[], __stop___param[]; #ifdef TARGET_OS2 LX_set_sysstate(LXSYSSTATE_KERNEL_BOOT_STARTED,0); #endif /* * Interrupts are still disabled. Do necessary setups, then * enable them */ lock_kernel(); page_address_init(); printk(linux_banner); setup_arch(&command_line); setup_per_cpu_areas(); /* * Mark the boot cpu "online" so that it can call console drivers in * printk() and can access its per-cpu storage. */ smp_prepare_boot_cpu(); build_all_zonelists(); page_alloc_init(); printk("Kernel command line: %s\n", saved_command_line); #ifdef TARGET_OS2 parse_args("Booting kernel", command_line, __start___param, 0, &unknown_bootoption); #else parse_args("Booting kernel", command_line, __start___param, __stop___param - __start___param, &unknown_bootoption); #endif sort_main_extable(); trap_init(); rcu_init(); init_IRQ(); pidhash_init(); sched_init(); softirq_init(); time_init(); /* * HACK ALERT! This is early. We're enabling the console before * we've done PCI setups etc, and console_init() must be aware of * this. But we do want output early, in case something goes wrong. */ console_init(); if (panic_later) panic(panic_later, panic_param); profile_init(); local_irq_enable(); #ifdef CONFIG_BLK_DEV_INITRD if (initrd_start && !initrd_below_start_ok && initrd_start < min_low_pfn << PAGE_SHIFT) { printk(KERN_CRIT "initrd overwritten (0x%08lx < 0x%08lx) - " "disabling it.\n",initrd_start,min_low_pfn << PAGE_SHIFT); initrd_start = 0; } #endif mem_init(); kmem_cache_init(); if (late_time_init) late_time_init(); calibrate_delay(); pidmap_init(); pgtable_cache_init(); pte_chain_init(); #ifdef CONFIG_X86 if (efi_enabled) efi_enter_virtual_mode(); #endif fork_init(num_physpages); proc_caches_init(); buffer_init(); unnamed_dev_init(); security_scaffolding_startup(); vfs_caches_init(num_physpages); radix_tree_init(); signals_init(); /* rootfs populating might need page-writeback */ page_writeback_init(); #ifdef CONFIG_PROC_FS proc_root_init(); #endif check_bugs(); printk("POSIX conformance testing by UNIFIX\n"); /* * We count on the initial thread going ok * Like idlers init is an unlocked kernel thread, which will * make syscalls (and thus be locked). */ init_idle(current, smp_processor_id()); /* Do the rest non-__init'ed, we're now alive */ rest_init(); }
asmlinkage void __init start_kernel(void) { char * command_line; extern struct kernel_param __start___param[], __stop___param[]; #ifdef CONFIG_RTAI_RTSPMM unsigned int indice_part; /* Size of the needed memory block by the configuration */ unsigned long rt_mem_block_size = 0; #endif /* * Interrupts are still disabled. Do necessary setups, then * enable them */ lock_kernel(); page_address_init(); printk(linux_banner); setup_arch(&command_line); setup_per_cpu_areas(); /* * Mark the boot cpu "online" so that it can call console drivers in * printk() and can access its per-cpu storage. */ smp_prepare_boot_cpu(); /* * Set up the scheduler prior starting any interrupts (such as the * timer interrupt). Full topology setup happens at smp_init() * time - but meanwhile we still have a functioning scheduler. */ sched_init(); /* * Disable preemption - early bootup scheduling is extremely * fragile until we cpu_idle() for the first time. */ preempt_disable(); build_all_zonelists(); page_alloc_init(); early_init_hardirqs(); printk("Kernel command line: %s\n", saved_command_line); parse_early_param(); parse_args("Booting kernel", command_line, __start___param, __stop___param - __start___param, &unknown_bootoption); sort_main_extable(); trap_init(); rcu_init(); init_IRQ(); pidhash_init(); init_timers(); softirq_init(); time_init(); /* * HACK ALERT! This is early. We're enabling the console before * we've done PCI setups etc, and console_init() must be aware of * this. But we do want output early, in case something goes wrong. */ console_init(); if (panic_later) panic(panic_later, panic_param); #ifdef CONFIG_RTAI_RTSPMM /* Allocate a big and continuous memory block for the module SPMM included in the RTAI functionalities */ printk("--- Memory Allocation for the module rt_spmm ---\n"); /* WARNING We need to add some space for the structures vrtxptext and vrtxpt and the partitions bitmap that the module rt_spmm uses to handle the blocks in each partition */ /* for each defined partitions */ for(indice_part = 0; indice_part < RT_MAX_PART_NUM; indice_part ++) { if ((rt_partitions_table[indice_part].block_size != 0) && (rt_partitions_table[indice_part].num_of_blocks != 0)) { rt_partitions_table[indice_part].part_size = (rt_partitions_table[indice_part].block_size + XN_NBBY) *rt_partitions_table[indice_part].num_of_blocks + + sizeof(vrtxptext_t)+sizeof(vrtxpt_t); rt_mem_block_size += rt_partitions_table[indice_part].part_size; } } #ifdef CONFIG_RTAI_PART_DMA printk("Allocate memory in the low part of memory\n"); rt_mem_block_ptr=(void*)alloc_bootmem_low(rt_mem_block_size + PAGE_SIZE-1); #else printk("Allocate memory in the standard part of memory\n"); rt_mem_block_ptr=(void*)alloc_bootmem(rt_mem_block_size + PAGE_SIZE-1); #endif /* CONFIG_PART_DMA */ printk("Needed Memory Size : %lu\n", rt_mem_block_size); printk("Allocated Memory Size : %lu\n", rt_mem_block_size + PAGE_SIZE-1); printk("Memory block address : 0x%x\n", (unsigned int)rt_mem_block_ptr); printk("-----------------------------------------------\n"); #endif /* CONFIG_RTAI_RTSPMM */ profile_init(); local_irq_enable(); #ifdef CONFIG_BLK_DEV_INITRD if (initrd_start && !initrd_below_start_ok && initrd_start < min_low_pfn << PAGE_SHIFT) { printk(KERN_CRIT "initrd overwritten (0x%08lx < 0x%08lx) - " "disabling it.\n",initrd_start,min_low_pfn << PAGE_SHIFT); initrd_start = 0; } #endif vfs_caches_init_early(); mem_init(); kmem_cache_init(); numa_policy_init(); if (late_time_init) late_time_init(); calibrate_delay(); pidmap_init(); pgtable_cache_init(); prio_tree_init(); anon_vma_init(); #ifdef CONFIG_X86 if (efi_enabled) efi_enter_virtual_mode(); #endif fork_init(num_physpages); proc_caches_init(); buffer_init(); unnamed_dev_init(); security_init(); vfs_caches_init(num_physpages); #ifdef CONFIG_MOT_FEAT_DEVICE_TREE mothwcfg_init(); #endif /* CONFIG_MOT_FEAT_DEVICE_TREE */ radix_tree_init(); signals_init(); /* rootfs populating might need page-writeback */ page_writeback_init(); #ifdef CONFIG_PROC_FS proc_root_init(); #endif check_bugs(); acpi_early_init(); /* before LAPIC and SMP init */ /* Do the rest non-__init'ed, we're now alive */ rest_init(); }
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); }
asmlinkage void __init start_kernel(void) { char * command_line; /* * Interrupts are still disabled. Do necessary setups, then * enable them */ lock_kernel(); page_address_init(); printk(KERN_NOTICE); printk(linux_banner); setup_arch(&command_line); setup_per_cpu_areas(); /* * Mark the boot cpu "online" so that it can call console drivers in * printk() and can access its per-cpu storage. */ smp_prepare_boot_cpu(); /* * Set up the scheduler prior starting any interrupts (such as the * timer interrupt). Full topology setup happens at smp_init() * time - but meanwhile we still have a functioning scheduler. */ sched_init(); /* * Disable preemption - early bootup scheduling is extremely * fragile until we cpu_idle() for the first time. */ preempt_disable(); build_all_zonelists(); page_alloc_init(); printk(KERN_NOTICE "Kernel command line: %s\n", saved_command_line); parse_early_param(); parse_args("Booting kernel", command_line, __kernel_param_list_ptr, kparam_list_count(), &unknown_bootoption); sort_main_extable(); #ifdef CONFIG_LTT ltt_init(); #endif //CONFIG_LTT trap_init(); rcu_init(); init_IRQ(); pidhash_init(); init_timers(); hrtimers_init(); softirq_init(); time_init(); /* * HACK ALERT! This is early. We're enabling the console before * we've done PCI setups etc, and console_init() must be aware of * this. But we do want output early, in case something goes wrong. */ console_init(); if (panic_later) panic(panic_later, panic_param); profile_init(); local_irq_enable(); #ifdef CONFIG_BLK_DEV_INITRD if (initrd_start && !initrd_below_start_ok && initrd_start < min_low_pfn << PAGE_SHIFT) { printk(KERN_CRIT "initrd overwritten (0x%08lx < 0x%08lx) - " "disabling it.\n",initrd_start,min_low_pfn << PAGE_SHIFT); initrd_start = 0; } #endif vfs_caches_init_early(); mem_init(); kmem_cache_init(); setup_per_cpu_pageset(); numa_policy_init(); if (late_time_init) late_time_init(); calibrate_delay(); pidmap_init(); pgtable_cache_init(); prio_tree_init(); anon_vma_init(); #ifdef CONFIG_X86 if (efi_enabled) efi_enter_virtual_mode(); #endif fork_init(num_physpages); proc_caches_init(); buffer_init(); unnamed_dev_init(); key_init(); security_init(); vfs_caches_init(num_physpages); radix_tree_init(); signals_init(); /* rootfs populating might need page-writeback */ page_writeback_init(); #ifdef CONFIG_PROC_FS proc_root_init(); #endif cpuset_init(); check_bugs(); acpi_early_init(); /* before LAPIC and SMP init */ /* Do the rest non-__init'ed, we're now alive */ rest_init(); }