2 * Copyright 2003 PathScale, Inc.
4 * Licensed under the GPL
7 #ifndef __SYSDEP_X86_64_SIGCONTEXT_H
8 #define __SYSDEP_X86_64_SIGCONTEXT_H
10 #include <sysdep/sc.h>
12 #define IP_RESTART_SYSCALL(ip) ((ip) -= 2)
14 #define SC_RESTART_SYSCALL(sc) IP_RESTART_SYSCALL(SC_IP(sc))
15 #define SC_SET_SYSCALL_RETURN(sc, result) SC_RAX(sc) = (result)
17 #define SC_FAULT_ADDR(sc) SC_CR2(sc)
18 #define SC_FAULT_TYPE(sc) SC_ERR(sc)
20 #define GET_FAULTINFO_FROM_SC(fi,sc) \
22 (fi).cr2 = SC_CR2(sc); \
23 (fi).error_code = SC_ERR(sc); \
24 (fi).trap_no = SC_TRAPNO(sc); \
27 /* ptrace expects that, at the start of a system call, %eax contains
28 * -ENOSYS, so this makes it so.
31 #define SC_START_SYSCALL(sc) do SC_RAX(sc) = -ENOSYS; while(0)
33 /* This is Page Fault */
34 #define SEGV_IS_FIXABLE(fi) ((fi)->trap_no == 14)
36 /* No broken SKAS API, which doesn't pass trap_no, here. */
37 #define SEGV_MAYBE_FIXABLE(fi) 0
39 extern unsigned long *sc_sigmask(void *sc_ptr);
44 * Overrides for Emacs so that we follow Linus's tabbing style.
45 * Emacs will notice this stuff at the end of the file and automatically
46 * adjust the settings for this buffer only. This must remain at the end
48 * ---------------------------------------------------------------------------
50 * c-file-style: "linux"