/*
- * Copyright (C) 2000 - 2004 Jeff Dike (jdike@addtoit.com)
+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
struct task_struct;
-#include "linux/config.h"
#include "asm/ptrace.h"
#include "choose-mode.h"
+#include "registers.h"
+#include "sysdep/archsetjmp.h"
struct mm_struct;
-#define cpu_relax() barrier()
-
struct thread_struct {
+ /* 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;
int forking;
int nsyscalls;
struct pt_regs regs;
- unsigned long cr2;
- int err;
- unsigned long trap_no;
int singlestep_syscall;
void *fault_addr;
void *fault_catcher;
#endif
#ifdef CONFIG_MODE_SKAS
struct {
- void *switch_buf;
- void *fork_buf;
+ jmp_buf switch_buf;
int mm_count;
} skas;
#endif
.forking = 0, \
.nsyscalls = 0, \
.regs = EMPTY_REGS, \
- .cr2 = 0, \
- .err = 0, \
.fault_addr = NULL, \
.prev_sched = NULL, \
.temp_stack = 0, \
extern void release_thread(struct task_struct *);
extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
-extern void dump_thread(struct pt_regs *regs, struct user *u);
-extern void prepare_to_copy(struct task_struct *tsk);
+
+static inline void prepare_to_copy(struct task_struct *tsk)
+{
+}
+
extern unsigned long thread_saved_pc(struct task_struct *t);
*/
extern unsigned long task_size;
-#undef TASK_SIZE
#define TASK_SIZE (task_size)
/* This decides where the kernel will search for a free chunk of vm
#define current_cpu_data boot_cpu_data
#endif
-#define KSTK_EIP(tsk) (PT_REGS_IP(&tsk->thread.regs))
-#define KSTK_ESP(tsk) (PT_REGS_SP(&tsk->thread.regs))
-#define get_wchan(p) (0)
+#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)
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
+#endif