/arch/um/include/sysdep-x86_64/sigcontext.h

 1/*
 2 * Copyright 2003 PathScale, Inc.
 3 *
 4 * Licensed under the GPL
 5 */
 6
 7#ifndef __SYSDEP_X86_64_SIGCONTEXT_H
 8#define __SYSDEP_X86_64_SIGCONTEXT_H
 9
10#include <sysdep/sc.h>
11
12#define IP_RESTART_SYSCALL(ip) ((ip) -= 2)
13
14#define SC_RESTART_SYSCALL(sc) IP_RESTART_SYSCALL(SC_IP(sc))
15#define SC_SET_SYSCALL_RETURN(sc, result) SC_RAX(sc) = (result)
16
17#define SC_FAULT_ADDR(sc) SC_CR2(sc)
18#define SC_FAULT_TYPE(sc) SC_ERR(sc)
19
20#define FAULT_WRITE(err) ((err) & 2)
21
22#define SC_FAULT_WRITE(sc) FAULT_WRITE(SC_FAULT_TYPE(sc))
23
24#define SC_TRAP_TYPE(sc) SC_TRAPNO(sc)
25
26/* ptrace expects that, at the start of a system call, %eax contains
27 * -ENOSYS, so this makes it so.
28 */
29
30#define SC_START_SYSCALL(sc) do SC_RAX(sc) = -ENOSYS; while(0)
31
32#define SEGV_IS_FIXABLE(trap) ((trap) == 14)
33#define SC_SEGV_IS_FIXABLE(sc) SEGV_IS_FIXABLE(SC_TRAP_TYPE(sc))
34
35extern unsigned long *sc_sigmask(void *sc_ptr);
36
37#endif
38
39/*
40 * Overrides for Emacs so that we follow Linus's tabbing style.
41 * Emacs will notice this stuff at the end of the file and automatically
42 * adjust the settings for this buffer only.  This must remain at the end
43 * of the file.
44 * ---------------------------------------------------------------------------
45 * Local variables:
46 * c-file-style: "linux"
47 * End:
48 */
49