* Licensed under the GPL
*/
-#include "linux/stddef.h"
-#include "linux/err.h"
-#include "linux/hardirq.h"
-#include "linux/mm.h"
-#include "linux/personality.h"
-#include "linux/proc_fs.h"
-#include "linux/ptrace.h"
-#include "linux/random.h"
-#include "linux/sched.h"
-#include "linux/tick.h"
-#include "linux/threads.h"
-#include "asm/pgtable.h"
-#include "asm/uaccess.h"
+#include <linux/stddef.h>
+#include <linux/err.h>
+#include <linux/hardirq.h>
+#include <linux/gfp.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/personality.h>
+#include <linux/proc_fs.h>
+#include <linux/ptrace.h>
+#include <linux/random.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+#include <linux/tick.h>
+#include <linux/threads.h>
+#include <asm/current.h>
+#include <asm/pgtable.h>
+#include <asm/uaccess.h>
#include "as-layout.h"
#include "kern_util.h"
#include "os.h"
*/
struct cpu_task cpu_tasks[NR_CPUS] = { [0 ... NR_CPUS - 1] = { -1, NULL } };
-static inline int external_pid(struct task_struct *task)
+static inline int external_pid(void)
{
/* FIXME: Need to look up userspace_pid by cpu */
return userspace_pid[0];
{
int i;
- for(i = 0; i < ncpus; i++) {
+ for (i = 0; i < ncpus; i++) {
if (cpu_tasks[i].pid == pid)
return i;
}
static inline void set_current(struct task_struct *task)
{
cpu_tasks[task_thread_info(task)->cpu] = ((struct cpu_task)
- { external_pid(task), task });
+ { external_pid(), task });
}
extern void arch_switch_to(struct task_struct *to);
do {
current->thread.saved_task = NULL;
- switch_threads(&from->thread.switch_buf, &to->thread.switch_buf);
+ switch_threads(&from->thread.switch_buf,
+ &to->thread.switch_buf);
arch_switch_to(current);
if (current->thread.saved_task)
show_regs(&(current->thread.regs));
- next = current->thread.saved_task;
- prev = current;
+ to = current->thread.saved_task;
+ from = current;
} while (current->thread.saved_task);
return current->thread.prev_sched;
return current;
}
-extern void schedule_tail(struct task_struct *prev);
-
/*
* This is called magically, by its address being stuffed in a jmp_buf
* and being longjmp-d to.
userspace(¤t->thread.regs.regs);
}
-int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
+int copy_thread(unsigned long clone_flags, unsigned long sp,
unsigned long stack_top, struct task_struct * p,
struct pt_regs *regs)
{
arch_copy_thread(¤t->thread.arch, &p->thread.arch);
}
else {
- init_thread_registers(&p->thread.regs.regs);
+ get_safe_registers(p->thread.regs.regs.gp);
p->thread.request.u.thread = current->thread.request.u.thread;
handler = new_thread_handler;
}
{
unsigned long long nsecs;
- while(1) {
+ while (1) {
/* endless idle loop with no priority at all */
/*
if (need_resched())
schedule();
- tick_nohz_stop_sched_tick();
+ tick_nohz_stop_sched_tick(1);
nsecs = disable_timer();
idle_sleep(nsecs);
tick_nohz_restart_sched_tick();
void cpu_idle(void)
{
- cpu_tasks[current_thread->cpu].pid = os_getpid();
+ cpu_tasks[current_thread_info()->cpu].pid = os_getpid();
default_idle();
}
-void dump_thread(struct pt_regs *regs, struct user *u)
-{
-}
-
int __cant_sleep(void) {
return in_atomic() || irqs_disabled() || in_interrupt();
/* Is in_interrupt() really needed? */
unsigned long stack;
stack = sp & (PAGE_MASK << CONFIG_KERNEL_STACK_ORDER);
- return stack != (unsigned long) current_thread;
+ return stack != (unsigned long) current_thread_info();
}
extern exitcall_t __uml_exitcall_begin, __uml_exitcall_end;
int smp_sigio_handler(void)
{
#ifdef CONFIG_SMP
- int cpu = current_thread->cpu;
+ int cpu = current_thread_info()->cpu;
IPI_handler(cpu);
if (cpu != 0)
return 1;
int cpu(void)
{
- return current_thread->cpu;
+ return current_thread_info()->cpu;
}
static atomic_t using_sysemu = ATOMIC_INIT(0);
return atomic_read(&using_sysemu);
}
-static int proc_read_sysemu(char *buf, char **start, off_t offset, int size,int *eof, void *data)
+static int sysemu_proc_show(struct seq_file *m, void *v)
{
- if (snprintf(buf, size, "%d\n", get_using_sysemu()) < size)
- /* No overflow */
- *eof = 1;
+ seq_printf(m, "%d\n", get_using_sysemu());
+ return 0;
+}
- return strlen(buf);
+static int sysemu_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, sysemu_proc_show, NULL);
}
-static int proc_write_sysemu(struct file *file,const char __user *buf, unsigned long count,void *data)
+static ssize_t sysemu_proc_write(struct file *file, const char __user *buf,
+ size_t count, loff_t *pos)
{
char tmp[2];
return count;
}
+static const struct file_operations sysemu_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = sysemu_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = sysemu_proc_write,
+};
+
int __init make_proc_sysemu(void)
{
struct proc_dir_entry *ent;
if (!sysemu_supported)
return 0;
- ent = create_proc_entry("sysemu", 0600, &proc_root);
+ ent = proc_create("sysemu", 0600, NULL, &sysemu_proc_fops);
if (ent == NULL)
{
return 0;
}
- ent->read_proc = proc_read_sysemu;
- ent->write_proc = proc_write_sysemu;
-
return 0;
}
{
struct task_struct *task = t ? t : current;
- if ( ! (task->ptrace & PT_DTRACE) )
+ if (!(task->ptrace & PT_DTRACE))
return 0;
if (task->thread.singlestep_syscall)