/*
- * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com)
+ * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
-#include "linux/slab.h"
+#include "linux/stddef.h"
+#include "linux/fs.h"
#include "linux/smp_lock.h"
#include "linux/ptrace.h"
-#include "asm/ptrace.h"
-#include "asm/pgtable.h"
-#include "asm/tlbflush.h"
+#include "linux/sched.h"
+#include "asm/current.h"
+#include "asm/processor.h"
#include "asm/uaccess.h"
-#include "kern_util.h"
#include "as-layout.h"
#include "mem_user.h"
-#include "kern.h"
-#include "irq_user.h"
-#include "tlb.h"
+#include "skas.h"
#include "os.h"
-#include "choose-mode.h"
-#include "mode_kern.h"
void flush_thread(void)
{
+ void *data = NULL;
+ int ret;
+
arch_flush_thread(¤t->thread.arch);
- CHOOSE_MODE(flush_thread_tt(), flush_thread_skas());
+
+ ret = unmap(¤t->mm->context.id, 0, STUB_START, 0, &data);
+ ret = ret || unmap(¤t->mm->context.id, STUB_END,
+ host_task_size - STUB_END, 1, &data);
+ if (ret) {
+ printk(KERN_ERR "flush_thread - clearing address space failed, "
+ "err = %d\n", ret);
+ force_sig(SIGKILL, current);
+ }
+
+ __switch_mm(¤t->mm->context.id);
}
void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
{
- CHOOSE_MODE_PROC(start_thread_tt, start_thread_skas, regs, eip, esp);
+ set_fs(USER_DS);
+ PT_REGS_IP(regs) = eip;
+ PT_REGS_SP(regs) = esp;
}
#ifdef CONFIG_TTY_LOG
static long execve1(char *file, char __user * __user *argv,
char __user *__user *env)
{
- long error;
+ long error;
#ifdef CONFIG_TTY_LOG
struct tty_struct *tty;
log_exec(argv, tty);
mutex_unlock(&tty_mutex);
#endif
- error = do_execve(file, argv, env, ¤t->thread.regs);
- if (error == 0){
+ error = do_execve(file, argv, env, ¤t->thread.regs);
+ if (error == 0) {
task_lock(current);
- current->ptrace &= ~PT_DTRACE;
+ current->ptrace &= ~PT_DTRACE;
#ifdef SUBARCH_EXECVE1
SUBARCH_EXECVE1(¤t->thread.regs.regs);
#endif
task_unlock(current);
- set_cmdline(current_cmd());
- }
- return(error);
+ }
+ return error;
}
long um_execve(char *file, char __user *__user *argv, char __user *__user *env)
long err;
err = execve1(file, argv, env);
- if(!err)
- do_longjmp(current->thread.exec_buf, 1);
- return(err);
+ if (!err)
+ UML_LONGJMP(current->thread.exec_buf, 1);
+ return err;
}
long sys_execve(char __user *file, char __user *__user *argv,
putname(filename);
out:
unlock_kernel();
- return(error);
+ return error;
}