/*
- * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
struct task_struct;
#include "asm/ptrace.h"
-#include "choose-mode.h"
#include "registers.h"
#include "sysdep/archsetjmp.h"
struct mm_struct;
struct thread_struct {
- /* This flag is set to 1 before calling do_fork (and analyzed in
+ struct task_struct *saved_task;
+ /*
+ * This flag is set to 1 before calling do_fork (and analyzed in
* copy_thread) to mark that we are begin called from userspace (fork /
* vfork / clone), and reset to 0 after. It is left to 0 when called
- * from kernelspace (i.e. kernel_thread() or fork_idle(), as of 2.6.11). */
- struct task_struct *saved_task;
+ * from kernelspace (i.e. kernel_thread() or fork_idle(),
+ * as of 2.6.11).
+ */
int forking;
- int nsyscalls;
struct pt_regs regs;
int singlestep_syscall;
void *fault_addr;
- void *fault_catcher;
+ jmp_buf *fault_catcher;
struct task_struct *prev_sched;
unsigned long temp_stack;
- void *exec_buf;
+ jmp_buf *exec_buf;
struct arch_thread arch;
- union {
-#ifdef CONFIG_MODE_TT
- struct {
- int extern_pid;
- int tracing;
- int switch_pipe[2];
- int vm_seq;
- } tt;
-#endif
-#ifdef CONFIG_MODE_SKAS
- struct {
- jmp_buf switch_buf;
- int mm_count;
- } skas;
-#endif
- } mode;
+ jmp_buf switch_buf;
+ int mm_count;
struct {
int op;
union {
#define INIT_THREAD \
{ \
.forking = 0, \
- .nsyscalls = 0, \
- .regs = EMPTY_REGS, \
+ .regs = EMPTY_REGS, \
.fault_addr = NULL, \
.prev_sched = NULL, \
.temp_stack = 0, \
.request = { 0 } \
}
-typedef struct {
- unsigned long seg;
-} mm_segment_t;
-
extern struct task_struct *alloc_task_struct(void);
-extern void release_thread(struct task_struct *);
+static inline void release_thread(struct task_struct *task)
+{
+}
+
extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
static inline void prepare_to_copy(struct task_struct *tsk)
*/
extern unsigned long task_size;
-#define TASK_SIZE (task_size)
+#define TASK_SIZE (task_size)
+
+#undef STACK_TOP
+#undef STACK_TOP_MAX
+
+extern unsigned long stacksizelim;
+
+#define STACK_ROOM (stacksizelim)
+#define STACK_TOP (TASK_SIZE - 2 * PAGE_SIZE)
+#define STACK_TOP_MAX STACK_TOP
/* This decides where the kernel will search for a free chunk of vm
* space during mmap's.
#endif
-#ifdef CONFIG_MODE_SKAS
-#define KSTK_REG(tsk, reg) \
- get_thread_reg(reg, &tsk->thread.mode.skas.switch_buf)
-#else
-#define KSTK_REG(tsk, reg) (0xbadbabe)
-#endif
-#define get_wchan(p) (0)
+#define KSTK_REG(tsk, reg) get_thread_reg(reg, &tsk->thread.switch_buf)
+extern unsigned long get_wchan(struct task_struct *p);
#endif