8b51304ed3
This change enables SKAS0/SKAS3 to work with all combinations of /proc/mm and PTRACE_FAULTINFO being available or not. Also it changes the initialization of proc_mm and ptrace_faultinfo slightly, to ease forcing SKAS0 on a patched host. Forcing UML to run without /proc/mm or PTRACE_FAULTINFO by cmdline parameter can be implemented with a setup resetting the related variable. Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
55 lines
2.0 KiB
C
55 lines
2.0 KiB
C
/*
|
|
* Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
|
|
* Licensed under the GPL
|
|
*/
|
|
|
|
#ifndef __SKAS_H
|
|
#define __SKAS_H
|
|
|
|
#include "mm_id.h"
|
|
#include "sysdep/ptrace.h"
|
|
|
|
extern int userspace_pid[];
|
|
extern int proc_mm, ptrace_faultinfo;
|
|
|
|
extern void switch_threads(void *me, void *next);
|
|
extern void thread_wait(void *sw, void *fb);
|
|
extern void new_thread(void *stack, void **switch_buf_ptr, void **fork_buf_ptr,
|
|
void (*handler)(int));
|
|
extern int start_idle_thread(void *stack, void *switch_buf_ptr,
|
|
void **fork_buf_ptr);
|
|
extern int user_thread(unsigned long stack, int flags);
|
|
extern void userspace(union uml_pt_regs *regs);
|
|
extern void new_thread_proc(void *stack, void (*handler)(int sig));
|
|
extern void remove_sigstack(void);
|
|
extern void new_thread_handler(int sig);
|
|
extern void handle_syscall(union uml_pt_regs *regs);
|
|
extern void *map(struct mm_id * mm_idp, unsigned long virt,
|
|
unsigned long len, int r, int w, int x, int phys_fd,
|
|
unsigned long long offset, int done, void *data);
|
|
extern void *unmap(struct mm_id * mm_idp, void *addr,
|
|
unsigned long len, int done, void *data);
|
|
extern void *protect(struct mm_id * mm_idp, unsigned long addr,
|
|
unsigned long len, int r, int w, int x, int done,
|
|
void *data);
|
|
extern void user_signal(int sig, union uml_pt_regs *regs, int pid);
|
|
extern int new_mm(int from, unsigned long stack);
|
|
extern int start_userspace(unsigned long stub_stack);
|
|
extern int copy_context_skas0(unsigned long stack, int pid);
|
|
extern void get_skas_faultinfo(int pid, struct faultinfo * fi);
|
|
extern long execute_syscall_skas(void *r);
|
|
extern unsigned long current_stub_stack(void);
|
|
|
|
#endif
|
|
|
|
/*
|
|
* 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:
|
|
*/
|