| /* |
| * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) |
| * Licensed under the GPL |
| */ |
| |
| #ifndef __SYS_SIGCONTEXT_I386_H |
| #define __SYS_SIGCONTEXT_I386_H |
| |
| #include <generated/user_constants.h> |
| |
| #define IP_RESTART_SYSCALL(ip) ((ip) -= 2) |
| |
| #define SC_OFFSET(sc, field) \ |
| *((unsigned long *) &(((char *) (sc))[HOST_##field])) |
| |
| #define SC_TRAPNO(sc) SC_OFFSET(sc, SC_TRAPNO) |
| #define SC_ERR(sc) SC_OFFSET(sc, SC_ERR) |
| #define SC_CR2(sc) SC_OFFSET(sc, SC_CR2) |
| |
| #define GET_FAULTINFO_FROM_SC(fi, sc) \ |
| { \ |
| (fi).cr2 = SC_CR2(sc); \ |
| (fi).error_code = SC_ERR(sc); \ |
| (fi).trap_no = SC_TRAPNO(sc); \ |
| } |
| |
| /* This is Page Fault */ |
| #define SEGV_IS_FIXABLE(fi) ((fi)->trap_no == 14) |
| |
| /* SKAS3 has no trap_no on i386, but get_skas_faultinfo() sets it to 0. */ |
| #define SEGV_MAYBE_FIXABLE(fi) ((fi)->trap_no == 0 && ptrace_faultinfo) |
| |
| #endif |
