static int __init kernel_init(void * unused)
{
lock_kernel();
/*
* init can run on any cpu.
*/
set_cpus_allowed_ptr(current, cpu_all_mask);
/*
* Tell the world that we're going to be the grim
* reaper of innocent orphaned children.
*
* We don't want people to have to make incorrect
* assumptions about where in the task array this
* can be found.
*/
init_pid_ns.child_reaper = current;
cad_pid = task_pid(current);
smp_prepare_cpus(setup_max_cpus);
do_pre_smp_initcalls();
start_boot_trace();
smp_init();
sched_init_smp();
do_basic_setup();
/*
* check if there is an early userspace init. If yes, let it do all
* the work
*/
if (!ramdisk_execute_command)
ramdisk_execute_command = "/init";
if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
ramdisk_execute_command = NULL;
prepare_namespace();
}
/*
* Ok, we have completed the initial bootup, and
* we're essentially up and running. Get rid of the
* initmem segments and start the user-mode stuff..
*/
init_post();
return 0;
}
int rdr_remove_file(char *filename)
{
int ret;
if (filename == NULL)
return 0;
ret = sys_access(filename, 0);
if (0 == ret) {
if (sys_unlink(filename)) {
DUMP_LOG(0);
return -1;
}
}
return 0;
}
int
osf1_sys_access(struct lwp *l, const struct osf1_sys_access_args *uap, register_t *retval)
{
struct sys_access_args a;
unsigned long leftovers;
SCARG(&a, path) = SCARG(uap, path);
/* translate flags */
SCARG(&a, flags) = emul_flags_translate(osf1_access_flags_xtab,
SCARG(uap, flags), &leftovers);
if (leftovers != 0)
return (EINVAL);
return sys_access(l, &a, retval);
}
static int hifi_create_dir(char *path)
{
int fd = -1;
fd = sys_access(path, 0);
if (0 != fd) {
logi("need create dir %s.\n", path);
fd = sys_mkdir(path, 0755);
if (fd < 0) {
loge("create dir %s fail, ret: %d.\n", path, fd);
return fd;
}
logi("create dir %s successed, fd: %d.\n", path, fd);
}
return 0;
}
int om_create_dir(char *path)
{
int fd;
/* 如果文件夹不存在，创建新文件夹*/
fd = sys_access(path, 0); //F_OK, 检查文件是否存在
if(0 != fd)
{
fd = sys_mkdir(path, 0660);
if(fd < 0)
{
bsp_trace(BSP_LOG_LEVEL_ERROR, BSP_MODU_OM, "create om dir failed! ret = %d\n", fd);
return fd;
}
}
return BSP_OK;
}
/*
* create a device node called <name> which points to
* <devfs_name> if possible, otherwise find a device node
* which matches <dev> and make <name> a symlink pointing to it.
*/
int __init create_dev(char *name, dev_t dev, char *devfs_name)
{
char path[64];
sys_unlink(name);
if (devfs_name && devfs_name[0]) {
if (strncmp(devfs_name, "/dev/", 5) == 0)
devfs_name += 5;
sprintf(path, "/dev/%s", devfs_name);
if (sys_access(path, 0) == 0)
return sys_symlink(devfs_name, name);
}
if (!dev)
return -1;
strcpy(path, "/dev");
if (find_in_devfs(path, new_encode_dev(dev)) < 0)
return -1;
return sys_symlink(path + 5, name);
}
/*
* eaccess() checks access to the given path using the effective
* uid/gid rather than the real uid/gid.
*/
int
xnx_eaccess(char *path, int mode)
{
uid_t ouid;
gid_t ogid;
int err;
ouid = current->uid;
ogid = current->gid;
current->uid = current->euid;
current->gid = current->egid;
err = sys_access(path, mode);
current->uid = ouid;
current->gid = ogid;
return err;
}
bool bsp_om_fs_check(void)
{
int fd;
mm_segment_t old_fs;
old_fs = get_fs();
set_fs(KERNEL_DS);
fd = sys_access(OM_ROOT_PATH, 0); //F_OK, 检查文件是否存在
if(0 != fd)
{
/*bsp_trace(BSP_LOG_LEVEL_ERROR, BSP_MODU_OM, "[BSP_OM]:bsp_om_fs_check file system is invalid\n");*/
set_fs(old_fs);
return false;
}
om_fetal("om fs is ready\n");
set_fs(old_fs);
return true;
}
int open_exec(const char *filename)
{
int ret, fd;
if ( (ret = sys_open(filename, O_RDONLY, 0)) < 0 )
return ret;
fd = ret;
/* fugly, but it works */
char fd_filename[32] = "/proc/self/fd/";
numcat(fd_filename, fd);
if ( (ret = sys_access(fd_filename, X_OK)) < 0 )
{
sys_close(fd);
return ret;
}
return fd;
}
static int __rdr_create_dir(char *path)
{
int fd;
mm_segment_t old_fs;
old_fs = get_fs();
set_fs(KERNEL_DS);
fd = sys_access(path, 0);
if (0 != fd) {
pr_info("rdr: need create dir %s !\n", path);
fd = sys_mkdir(path, 0755);
if (fd < 0) {
pr_err("rdr: create dir %s failed! ret = %d\n",
path, fd);
set_fs(old_fs);
return fd;
}
pr_info("rdr: create dir %s successed [%d]!!!\n", path, fd);
}
set_fs(old_fs);
return 0;
}
/*this function used in little file , only write once. */
int rdr_append_file(char *filename, void *address, u32 length, u32 max_size)
{
int ret = 0;
int fd;
int bytes;
int len;
mm_segment_t old_fs;
old_fs = get_fs();
set_fs(KERNEL_DS);
ret = rdr_create_dir(OM_ROOT_PATH);
if (0 != ret) {
pr_err("<%s()>, create dir [%s] failed! ret = %d\n",
__func__, OM_ROOT_PATH, ret);
goto out;
}
ret = sys_access(filename, 0);
if (0 != ret) {
fd = sys_open(filename, O_CREAT | O_RDWR, 0664);/*create file */
if (fd < 0) {
pr_err("<%s()>,createOopen fail,r:%d\n",
__func__, fd);
goto out;
}
} else {
fd = sys_open(filename, O_APPEND | O_RDWR, 0664);
if (fd < 0) {
pr_err("<%s()>,appendOpen failed:r:%d\n", __func__, fd);
goto out;
}
}
len = sys_lseek(fd, 0, SEEK_END);
if (len < 0) {
pr_err("<%s()>, seek failed! ret = %d\n", __func__, len);
ret = sys_close(fd);
goto out;
}
if (len > max_size) {
sys_close(fd);
ret = sys_unlink(filename);
if (0 != ret) {
pr_err("<%s()>, remove failed!ret:%d\n", __func__, ret);
goto out;
}
/*rebuild reset file*/
fd = sys_open(filename, O_CREAT | O_RDWR, 0664);
if (fd < 0) {
pr_err("<%s()>, create failed! ret:%d\n", __func__, fd);
goto out;
}
}
bytes = sys_write(fd, address, length);
if (bytes != length) {
pr_err("<%s()>, write data failed! ret:%d\n", __func__, bytes);
ret = sys_close(fd);
goto out;
}
sys_fsync(fd);
ret = sys_close(fd);
if (0 != ret) {
pr_err("<%s()>, close failed! ret = %d\n", __func__, ret);
ret = -1;
goto out;
}
ret = 0;
out:
set_fs(old_fs);
/*pr_info("rdr: <%s()>, save end. ret = %d\n", __func__, ret);*/
return ret;
}
static int init(void * unused)
{
lock_kernel();
/*
* Tell the world that we're going to be the grim
* reaper of innocent orphaned children.
*
* We don't want people to have to make incorrect
* assumptions about where in the task array this
* can be found.
*/
child_reaper = current;
/* Sets up cpus_possible() */
smp_prepare_cpus(max_cpus);
init_hardirqs();
do_pre_smp_initcalls();
fixup_cpu_present_map();
smp_init();
sched_init_smp();
/*
* Do this before initcalls, because some drivers want to access
* firmware files.
*/
populate_rootfs();
do_basic_setup();
/*
* check if there is an early userspace init. If yes, let it do all
* the work
*/
if (sys_access((const char __user *) "/init", 0) == 0)
execute_command = "/init";
else
prepare_namespace();
/*
* Ok, we have completed the initial bootup, and
* we're essentially up and running. Get rid of the
* initmem segments and start the user-mode stuff..
*/
free_initmem();
unlock_kernel();
system_state = SYSTEM_RUNNING;
numa_default_policy();
if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
printk("Warning: unable to open an initial console.\n");
(void) sys_dup(0);
(void) sys_dup(0);
/*
* We try each of these until one succeeds.
*
* The Bourne shell can be used instead of init if we are
* trying to recover a really broken machine.
*/
#ifdef CONFIG_KFI_BOOT_TIMING
to_userspace();
#endif
if (execute_command)
run_init_process(execute_command);
run_init_process("/sbin/init");
run_init_process("/etc/init");
run_init_process("/bin/init");
run_init_process("/bin/sh");
panic("No init found. Try passing init= option to kernel.");
}
void log_file_size_check(char *filename)
{
struct file *file;
loff_t file_size = 0;
int i = 0;
char buf1[1024] = {0};
char buf2[1024] = {0};
mm_segment_t old_fs = get_fs();
int ret = 0;
set_fs(KERNEL_DS);
if (filename) {
file = filp_open(filename, O_RDONLY, 0666);
sys_chmod(filename, 0666);
} else {
TOUCH_E("%s : filename is NULL, can not open FILE\n",
__func__);
goto error;
}
if (IS_ERR(file)) {
TOUCH_I("%s : ERR(%ld) Open file error [%s]\n",
__func__, PTR_ERR(file), filename);
goto error;
}
file_size = vfs_llseek(file, 0, SEEK_END);
TOUCH_I("%s : [%s] file_size = %lld\n",
__func__, filename, file_size);
filp_close(file, 0);
if (file_size > MAX_LOG_FILE_SIZE) {
TOUCH_I("%s : [%s] file_size(%lld) > MAX_LOG_FILE_SIZE(%d)\n",
__func__, filename, file_size, MAX_LOG_FILE_SIZE);
for (i = MAX_LOG_FILE_COUNT - 1; i >= 0; i--) {
if (i == 0)
sprintf(buf1, "%s", filename);
else
sprintf(buf1, "%s.%d", filename, i);
ret = sys_access(buf1, 0);
if (ret == 0) {
TOUCH_I("%s : file [%s] exist\n", __func__, buf1);
if (i == (MAX_LOG_FILE_COUNT - 1)) {
if (sys_unlink(buf1) < 0) {
TOUCH_E(
"%s : failed to remove file [%s]\n",
__func__, buf1);
goto error;
}
TOUCH_I(
"%s : remove file [%s]\n",
__func__, buf1);
} else {
sprintf(buf2, "%s.%d", filename,
(i + 1));
if (sys_rename(buf1, buf2) < 0) {
TOUCH_E(
"%s : failed to rename file [%s] -> [%s]\n",
__func__, buf1, buf2);
goto error;
}
TOUCH_I(
"%s : rename file [%s] -> [%s]\n",
__func__, buf1, buf2);
}
} else {
TOUCH_I("%s : file [%s] does not exist (ret = %d)\n", __func__, buf1, ret);
}
}
}
error:
set_fs(old_fs);
return;
}
static int init(void * unused)
{
lock_kernel();
/*
* init can run on any cpu.
*/
set_cpus_allowed(current, CPU_MASK_ALL);
/*
* Tell the world that we're going to be the grim
* reaper of innocent orphaned children.
*
* We don't want people to have to make incorrect
* assumptions about where in the task array this
* can be found.
*/
child_reaper = current;
smp_prepare_cpus(max_cpus);
do_pre_smp_initcalls();
smp_init();
sched_init_smp();
cpuset_init_smp();
/*
* Do this before initcalls, because some drivers want to access
* firmware files.
*/
populate_rootfs();
do_basic_setup();
/*
* check if there is an early userspace init. If yes, let it do all
* the work
*/
if (!ramdisk_execute_command)
ramdisk_execute_command = "/init";
if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
ramdisk_execute_command = NULL;
prepare_namespace();
}
/*
* Ok, we have completed the initial bootup, and
* we're essentially up and running. Get rid of the
* initmem segments and start the user-mode stuff..
*/
free_initmem();
unlock_kernel();
mark_rodata_ro();
system_state = SYSTEM_RUNNING;
numa_default_policy();
if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
printk(KERN_WARNING "Warning: unable to open an initial console.\n");
(void) sys_dup(0);
(void) sys_dup(0);
if (ramdisk_execute_command) {
run_init_process(ramdisk_execute_command);
printk(KERN_WARNING "Failed to execute %s\n",
ramdisk_execute_command);
}
/*
* We try each of these until one succeeds.
*
* The Bourne shell can be used instead of init if we are
* trying to recover a really broken machine.
*/
if (execute_command) {
run_init_process(execute_command);
printk(KERN_WARNING "Failed to execute %s. Attempting "
"defaults...\n", execute_command);
}
run_init_process("/sbin/init");
run_init_process("/etc/init");
run_init_process("/bin/init");
run_init_process("/bin/sh");
panic("No init found. Try passing init= option to kernel.");
}
static int ATTRIB_NORET init(void * unused)
{
#ifdef TARGET_OS2
LX_ReschedWaitOn();
while(kernel_flag.lock<=0)
schedule();
#endif
lock_kernel();
/*
* Tell the world that we're going to be the grim
* reaper of innocent orphaned children.
*
* We don't want people to have to make incorrect
* assumptions about where in the task array this
* can be found.
*/
child_reaper = current;
/* Sets up cpus_possible() */
smp_prepare_cpus(max_cpus);
do_pre_smp_initcalls();
smp_init();
/*
* Do this before initcalls, because some drivers want to access
* firmware files.
*/
populate_rootfs();
do_basic_setup();
/*
* check if there is an early userspace init. If yes, let it do all
* the work
*/
if (sys_access("/init", 0) == 0)
execute_command = "/init";
else
prepare_namespace();
/*
* Ok, we have completed the initial bootup, and
* we're essentially up and running. Get rid of the
* initmem segments and start the user-mode stuff..
*/
free_initmem();
unlock_kernel();
system_state = SYSTEM_RUNNING;
#ifdef TARGET_OS2
lx_sysstate|=LXSYSSTATE_SYSTEM_RUNNING;
#endif
if (sys_open("/dev/console", O_RDWR, 0) < 0)
printk("Warning: unable to open an initial console.\n");
(void) sys_dup(0);
(void) sys_dup(0);
#ifdef TARGET_OS2
LX_set_sysstate(LXSYSSTATE_KERNEL_BOOT_FINISHED,0);
#endif
/*
* We try each of these until one succeeds.
*
* The Bourne shell can be used instead of init if we are
* trying to recover a really broken machine.
*/
if (execute_command)
run_init_process(execute_command);
run_init_process("/sbin/init");
run_init_process("/etc/init");
run_init_process("/bin/init");
run_init_process("/bin/sh");
panic("No init found. Try passing init= option to kernel.");
}
/* Note: it is necessary to treat mode as an unsigned int,
* with the corresponding cast to a signed int to insure that the
* proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
* and the register representation of a signed int (msr in 64-bit mode) is performed.
*/
asmlinkage long compat_sys_access(const char __user * filename, u32 mode)
{
return sys_access(filename, (int)mode);
}
int
ultrix_sys_access(struct lwp *l, const struct ultrix_sys_access_args *uap, register_t *retval)
{
return sys_access(l, (const struct sys_access_args *)uap, retval);
}
int access(const char *filename, int mode)
{
return sys_access(filename, mode);
}
static int __init kernel_init(void * unused)
{
lock_kernel();
/*
* init can allocate pages on any node
*/
set_mems_allowed(node_possible_map);
#ifdef CONFIG_SYS_HAS_CONTROL_CPU
/*
* init can run on cpu0 only .
*/
set_cpus_allowed_ptr(current, cpumask_of(0));
#else
/*
* init can run on any cpu .
*/
set_cpus_allowed_ptr(current, cpu_all_mask);
#endif
/*
* Tell the world that we're going to be the grim
* reaper of innocent orphaned children.
*
* We don't want people to have to make incorrect
* assumptions about where in the task array this
* can be found.
*/
init_pid_ns.child_reaper = current;
cad_pid = task_pid(current);
smp_prepare_cpus(setup_max_cpus);
do_pre_smp_initcalls();
start_boot_trace();
smp_init();
sched_init_smp();
#ifdef CONFIG_SYS_HAS_CONTROL_CPU
/* HeJianjun modified for bug 148,
* we run linux local processes on only cpu0, other cpu's are just for running dapp */
set_cpus_allowed_ptr(current, cpumask_of(0));
#endif
do_basic_setup();
/*
* check if there is an early userspace init. If yes, let it do all
* the work
*/
if (!ramdisk_execute_command)
ramdisk_execute_command = "/init";
if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
ramdisk_execute_command = NULL;
prepare_namespace();
}
/*
* Ok, we have completed the initial bootup, and
* we're essentially up and running. Get rid of the
* initmem segments and start the user-mode stuff..
*/
init_post();
return 0;
}
static int __init kernel_init(void * unused)
{
lock_kernel();
/*
* init can allocate pages on any node
*/
set_mems_allowed(node_possible_map);
/*
* init can run on any cpu.
*/
set_cpus_allowed_ptr(current, cpu_all_mask);
/*
* Tell the world that we're going to be the grim
* reaper of innocent orphaned children.
*
* We don't want people to have to make incorrect
* assumptions about where in the task array this
* can be found.
*/
init_pid_ns.child_reaper = current;
cad_pid = task_pid(current);
smp_prepare_cpus(setup_max_cpus);
do_pre_smp_initcalls();
start_boot_trace();
smp_init();
sched_init_smp();
do_basic_setup();
/*
* check if there is an early userspace init. If yes, let it do all
* the work
*/
if (!ramdisk_execute_command)
ramdisk_execute_command = "/init";
if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
ramdisk_execute_command = NULL;
prepare_namespace();
}
#ifdef CONFIG_PREEMPT_RT
WARN_ON(irqs_disabled());
#endif
#define DEBUG_COUNT (defined(CONFIG_DEBUG_RT_MUTEXES) + defined(CONFIG_IRQSOFF_TRACER) + defined(CONFIG_PREEMPT_TRACER) + defined(CONFIG_STACK_TRACER) + defined(CONFIG_INTERRUPT_OFF_HIST) + defined(CONFIG_PREEMPT_OFF_HIST) + defined(CONFIG_WAKEUP_LATENCY_HIST) + defined(CONFIG_DEBUG_SLAB) + defined(CONFIG_DEBUG_PAGEALLOC) + defined(CONFIG_LOCKDEP) + (defined(CONFIG_FTRACE) - defined(CONFIG_FTRACE_MCOUNT_RECORD)))
#if DEBUG_COUNT > 0
printk(KERN_ERR "*****************************************************************************\n");
printk(KERN_ERR "* *\n");
#if DEBUG_COUNT == 1
printk(KERN_ERR "* REMINDER, the following debugging option is turned on in your .config: *\n");
#else
printk(KERN_ERR "* REMINDER, the following debugging options are turned on in your .config: *\n");
#endif
printk(KERN_ERR "* *\n");
#ifdef CONFIG_DEBUG_RT_MUTEXES
printk(KERN_ERR "* CONFIG_DEBUG_RT_MUTEXES *\n");
#endif
#ifdef CONFIG_IRQSOFF_TRACER
printk(KERN_ERR "* CONFIG_IRQSOFF_TRACER *\n");
#endif
#ifdef CONFIG_PREEMPT_TRACER
printk(KERN_ERR "* CONFIG_PREEMPT_TRACER *\n");
#endif
#if defined(CONFIG_FTRACE) && !defined(CONFIG_FTRACE_MCOUNT_RECORD)
printk(KERN_ERR "* CONFIG_FTRACE *\n");
#endif
#ifdef CONFIG_INTERRUPT_OFF_HIST
printk(KERN_ERR "* CONFIG_INTERRUPT_OFF_HIST *\n");
#endif
#ifdef CONFIG_PREEMPT_OFF_HIST
printk(KERN_ERR "* CONFIG_PREEMPT_OFF_HIST *\n");
#endif
#ifdef CONFIG_WAKEUP_LATENCY_HIST
printk(KERN_ERR "* CONFIG_WAKEUP_LATENCY_HIST *\n");
#endif
#ifdef CONFIG_DEBUG_SLAB
printk(KERN_ERR "* CONFIG_DEBUG_SLAB *\n");
#endif
#ifdef CONFIG_DEBUG_PAGEALLOC
printk(KERN_ERR "* CONFIG_DEBUG_PAGEALLOC *\n");
#endif
#ifdef CONFIG_LOCKDEP
printk(KERN_ERR "* CONFIG_LOCKDEP *\n");
#endif
printk(KERN_ERR "* *\n");
#if DEBUG_COUNT == 1
printk(KERN_ERR "* it may increase runtime overhead and latencies. *\n");
#else
printk(KERN_ERR "* they may increase runtime overhead and latencies. *\n");
#endif
printk(KERN_ERR "* *\n");
printk(KERN_ERR "*****************************************************************************\n");
#endif
/*
* Ok, we have completed the initial bootup, and
* we're essentially up and running. Get rid of the
* initmem segments and start the user-mode stuff..
*/
init_post();
return 0;
}
int bsp_om_append_file(char *filename, void * address, u32 length, u32 max_size)
{
int ret = BSP_OK;
int fd;
int bytes;
int len;
mm_segment_t old_fs;
old_fs = get_fs();
set_fs(KERNEL_DS);
ret = om_create_dir(OM_ROOT_PATH);
if(BSP_OK != ret)
{
om_error("<bsp_om_append_file>, create dir failed! ret = %d\n", ret);
goto out;
}
/* open file */
ret = sys_access(filename, 0);
if(BSP_OK != ret)
{
/*create file */
fd = sys_open(filename, O_CREAT|O_RDWR, 0755);
if(fd < 0)
{
om_error("<bsp_om_append_file>, open failed while mode is create, ret = %d\n", fd);
goto out;
}
}
else
{
fd = sys_open(filename, O_APPEND|O_RDWR, 0755);
if(fd < 0)
{
om_error("<bsp_om_append_file>, open failed while mode is append, ret = %d\n", fd);
goto out;
}
}
len = sys_lseek(fd, 0, SEEK_END);
if(ERROR == len)
{
om_error("<bsp_om_append_file>, seek failed! ret = %d\n", len);
(void)sys_close(fd);
goto out;
}
if (len >= max_size)
{
sys_close(fd);
ret = sys_unlink(filename);
if (OK != ret)
{
om_error("<bsp_om_append_file>, remove failed! ret = %d\n", ret);
goto out;
}
/*重新建立reset文件*/
fd = sys_open(filename, O_CREAT|O_RDWR, 0755);
if(fd < 0)
{
om_error("<bsp_om_append_file>, create failed! ret = %d\n", fd);
goto out;
}
}
bytes = sys_write(fd, address, length);
if(bytes != length)
{
om_error("<bsp_om_append_file>, write data failed! ret = %d\n", bytes);
ret = BSP_ERROR;
(void)sys_close(fd);
goto out;
}
ret = sys_close(fd);
if(0 != ret)
{
om_error("<bsp_om_append_file>, close failed! ret = %d\n", ret);
ret = BSP_ERROR;
goto out;
}
ret = BSP_OK;
out:
set_fs(old_fs);
return ret;
}
static int init(void * unused)
{
int fdin, fdout, fderr;
lock_kernel();
/*
* init can run on any cpu.
*/
set_cpus_allowed(current, CPU_MASK_ALL);
/*
* Tell the world that we're going to be the grim
* reaper of innocent orphaned children.
*
* We don't want people to have to make incorrect
* assumptions about where in the task array this
* can be found.
*/
child_reaper = current;
/* Sets up cpus_possible() */
smp_prepare_cpus(max_cpus);
do_pre_smp_initcalls();
fixup_cpu_present_map();
smp_init();
sched_init_smp();
cpuset_init_smp();
/*
* Do this before initcalls, because some drivers want to access
* firmware files.
*/
populate_rootfs();
do_basic_setup();
/*
* check if there is an early userspace init. If yes, let it do all
* the work
*/
if (sys_access((const char __user *) "/init", 0) == 0)
execute_command = "/init";
else
prepare_namespace();
/*
* Ok, we have completed the initial bootup, and
* we're essentially up and running. Get rid of the
* initmem segments and start the user-mode stuff..
*/
free_initmem();
unlock_kernel();
system_state = SYSTEM_RUNNING;
numa_default_policy();
fdin = sys_open((const char __user *) "/dev/console", O_RDWR, 0);
if (fdin < 0) {
printk(KERN_WARNING "Warning: unable to open /dev/console as initial console, res=%d.\n", fdin);
fdin = sys_open((const char __user *) "/dev/null", O_RDWR, 0);
if (fdin < 0) {
panic("unable to open /dev/null as initial console, res=%d.\n", fdin);
}
}
if (fdin != 0) {
panic("initial console's stdin fd is not 0, but %d\n", fdin);
}
fdout = sys_dup(fdin);
if (fdout < 0) {
panic("can't dup initial console's stdout, res=%d\n", fdout);
} else if (fdout != 1) {
panic("initial console's stdout fd is not 1, but %d\n", fdout);
}
fderr = sys_dup(fdin);
if (fderr < 0) {
panic("can't dup initial console's stderr, res=%d\n", fderr);
} else if (fderr != 2) {
panic("initial console's stderr fd is not 2, but %d\n", fderr);
}
/*
* We try each of these until one succeeds.
*
* The Bourne shell can be used instead of init if we are
* trying to recover a really broken machine.
*/
if (execute_command)
run_init_process(execute_command);
run_init_process("/sbin/init");
run_init_process("/etc/init");
run_init_process("/bin/init");
run_init_process("/bin/sh");
panic("No init found. Try passing init= option to kernel.");
}
static int init(void * unused)
{
#ifdef CONFIG_STR8100_GNSD630
__u32 data;
/*
* from original kernel image
* TODO: figure out what the commented out lines do
*/
/*
* mode for gpio pins:
* 22 and 23: led mode
* 24: stays gpio. changes disk mode
*/
MISC_GPIOA_PIN_ENABLE_REG = 0x0;
MISC_GPIOA_PIN_ENABLE_REG |= (0x3 << 22);
/*
* set some pins to input mode
* 13: device is connected to pc
* 0: reset button
*/
GPIOA_DIRECTION_REG = 0xffffdff0;
/*
* disk to standalone mode
*/
GPIOA_DATA_OUTPUT_REG = 0x010fffff;
udelay(10);
/*
GPIOA_DATA_OUTPUT_REG |= 0x20000;
GPIOA_DATA_OUTPUT_REG |= 0x20000000;
*/
/* set disk to device mode if connected to pc */
HAL_GPIOA_READ_DATA_IN_STATUS(data);
if (!(data & 0x00002000))
GPIOA_DATA_OUTPUT_REG = 0x000fdfff;
/*
GPIOA_DATA_OUTPUT_REG |= 0x10000;
*/
#endif
lock_kernel();
/*
* init can run on any cpu.
*/
set_cpus_allowed(current, CPU_MASK_ALL);
/*
* Tell the world that we're going to be the grim
* reaper of innocent orphaned children.
*
* We don't want people to have to make incorrect
* assumptions about where in the task array this
* can be found.
*/
child_reaper = current;
smp_prepare_cpus(max_cpus);
do_pre_smp_initcalls();
fixup_cpu_present_map();
smp_init();
sched_init_smp();
cpuset_init_smp();
/*
* Do this before initcalls, because some drivers want to access
* firmware files.
*/
populate_rootfs();
do_basic_setup();
#ifdef CONFIG_STR8100_GNSD630
/*
GPIOA_DATA_OUTPUT_REG |= 0x20000;
GPIOA_DATA_OUTPUT_REG |= 0x20000000;
*/
/*
* setup gpio pins again. seems redundant
*/
MISC_GPIOA_PIN_ENABLE_REG = 0x0;
MISC_GPIOA_PIN_ENABLE_REG |= (0x3 << 22);
#endif
/*
* check if there is an early userspace init. If yes, let it do all
* the work
*/
if (!ramdisk_execute_command)
ramdisk_execute_command = "/init";
if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
ramdisk_execute_command = NULL;
prepare_namespace();
}
/*
* Ok, we have completed the initial bootup, and
* we're essentially up and running. Get rid of the
* initmem segments and start the user-mode stuff..
*/
free_initmem();
unlock_kernel();
mark_rodata_ro();
system_state = SYSTEM_RUNNING;
numa_default_policy();
if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
printk(KERN_WARNING "Warning: unable to open an initial console.\n");
(void) sys_dup(0);
(void) sys_dup(0);
if (ramdisk_execute_command) {
run_init_process(ramdisk_execute_command);
printk(KERN_WARNING "Failed to execute %s\n",
ramdisk_execute_command);
}
/*
* We try each of these until one succeeds.
*
* The Bourne shell can be used instead of init if we are
* trying to recover a really broken machine.
*/
if (execute_command) {
run_init_process(execute_command);
printk(KERN_WARNING "Failed to execute %s. Attempting "
"defaults...\n", execute_command);
}
run_init_process("/sbin/init");
run_init_process("/etc/init");
run_init_process("/bin/init");
run_init_process("/bin/sh");
panic("No init found. Try passing init= option to kernel.");
}
static int __init kernel_init(void * unused)
{
/*
* Wait until kthreadd is all set-up.
*/
wait_for_completion(&kthreadd_done);
lock_kernel();
/*
* init can allocate pages on any node
*/
set_mems_allowed(node_states[N_HIGH_MEMORY]);
/*
* init can run on any cpu.
*/
set_cpus_allowed_ptr(current, cpu_all_mask);
/*
* Tell the world that we're going to be the grim
* reaper of innocent orphaned children.
*
* We don't want people to have to make incorrect
* assumptions about where in the task array this
* can be found.
*/
init_pid_ns.child_reaper = current;
cad_pid = task_pid(current);
smp_prepare_cpus(setup_max_cpus);
do_pre_smp_initcalls();
start_boot_trace();
smp_init();
sched_init_smp();
do_basic_setup();
/* Open the /dev/console on the rootfs, this should never fail */
if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
printk(KERN_WARNING "Warning: unable to open an initial console.\n");
(void) sys_dup(0);
(void) sys_dup(0);
/*
* check if there is an early userspace init. If yes, let it do all
* the work
*/
if (!ramdisk_execute_command)
ramdisk_execute_command = "/init";
if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
ramdisk_execute_command = NULL;
prepare_namespace();
}
/*
* Ok, we have completed the initial bootup, and
* we're essentially up and running. Get rid of the
* initmem segments and start the user-mode stuff..
*/
init_post();
return 0;
}
static int init(void * unused)
{
lock_kernel();
/*
* init can run on any cpu.
*/
set_cpus_allowed(current, CPU_MASK_ALL);
/*
* Tell the world that we're going to be the grim
* reaper of innocent orphaned children.
*
* We don't want people to have to make incorrect
* assumptions about where in the task array this
* can be found.
*/
child_reaper = current;
smp_prepare_cpus(max_cpus);
init_hardirqs();
do_pre_smp_initcalls();
smp_init();
sched_init_smp();
cpuset_init_smp();
/*
* Do this before initcalls, because some drivers want to access
* firmware files.
*/
populate_rootfs();
do_basic_setup();
/*
* check if there is an early userspace init. If yes, let it do all
* the work
*/
if (!ramdisk_execute_command)
ramdisk_execute_command = "/init";
if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
ramdisk_execute_command = NULL;
prepare_namespace();
}
#ifdef CONFIG_PREEMPT_RT
WARN_ON(irqs_disabled());
#endif
#define DEBUG_COUNT (defined(CONFIG_DEBUG_RT_MUTEXES) + defined(CONFIG_DEBUG_PREEMPT) + defined(CONFIG_CRITICAL_PREEMPT_TIMING) + defined(CONFIG_CRITICAL_IRQSOFF_TIMING) + defined(CONFIG_LATENCY_TRACE) + defined(CONFIG_DEBUG_SLAB) + defined(CONFIG_DEBUG_PAGEALLOC) + defined(CONFIG_LOCKDEP))
#if DEBUG_COUNT > 0
printk(KERN_ERR "*****************************************************************************\n");
printk(KERN_ERR "* *\n");
#if DEBUG_COUNT == 1
printk(KERN_ERR "* REMINDER, the following debugging option is turned on in your .config: *\n");
#else
printk(KERN_ERR "* REMINDER, the following debugging options are turned on in your .config: *\n");
#endif
printk(KERN_ERR "* *\n");
#ifdef CONFIG_DEBUG_RT_MUTEXES
printk(KERN_ERR "* CONFIG_DEBUG_RT_MUTEXES *\n");
#endif
#ifdef CONFIG_DEBUG_PREEMPT
printk(KERN_ERR "* CONFIG_DEBUG_PREEMPT *\n");
#endif
#ifdef CONFIG_CRITICAL_PREEMPT_TIMING
printk(KERN_ERR "* CONFIG_CRITICAL_PREEMPT_TIMING *\n");
#endif
#ifdef CONFIG_CRITICAL_IRQSOFF_TIMING
printk(KERN_ERR "* CONFIG_CRITICAL_IRQSOFF_TIMING *\n");
#endif
#ifdef CONFIG_LATENCY_TRACE
printk(KERN_ERR "* CONFIG_LATENCY_TRACE *\n");
#endif
#ifdef CONFIG_DEBUG_SLAB
printk(KERN_ERR "* CONFIG_DEBUG_SLAB *\n");
#endif
#ifdef CONFIG_DEBUG_PAGEALLOC
printk(KERN_ERR "* CONFIG_DEBUG_PAGEALLOC *\n");
#endif
#ifdef CONFIG_LOCKDEP
printk(KERN_ERR "* CONFIG_LOCKDEP *\n");
#endif
printk(KERN_ERR "* *\n");
#if DEBUG_COUNT == 1
printk(KERN_ERR "* it may increase runtime overhead and latencies. *\n");
#else
printk(KERN_ERR "* they may increase runtime overhead and latencies. *\n");
#endif
printk(KERN_ERR "* *\n");
printk(KERN_ERR "*****************************************************************************\n");
#endif
/*
* Ok, we have completed the initial bootup, and
* we're essentially up and running. Get rid of the
* initmem segments and start the user-mode stuff..
*/
free_initmem();
unlock_kernel();
mark_rodata_ro();
system_state = SYSTEM_RUNNING;
numa_default_policy();
if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
printk(KERN_WARNING "Warning: unable to open an initial console.\n");
(void) sys_dup(0);
(void) sys_dup(0);
if (ramdisk_execute_command) {
run_init_process(ramdisk_execute_command);
printk(KERN_WARNING "Failed to execute %s\n",
ramdisk_execute_command);
}
#ifdef CONFIG_PREEMPT_RT
WARN_ON(irqs_disabled());
#endif
/*
* We try each of these until one succeeds.
*
* The Bourne shell can be used instead of init if we are
* trying to recover a really broken machine.
*/
if (execute_command) {
run_init_process(execute_command);
printk(KERN_WARNING "Failed to execute %s. Attempting "
"defaults...\n", execute_command);
}
run_init_process("/sbin/init");
run_init_process("/etc/init");
run_init_process("/bin/init");
run_init_process("/bin/sh");
panic("No init found. Try passing init= option to kernel.");
}