1 /* 2 * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) 3 * Licensed under the GPL 4 */ 5 6 #ifndef __SYS_SIGCONTEXT_X86_H 7 #define __SYS_SIGCONTEXT_X86_H 8 9 #include <stub-data.h> 10 11 extern void get_regs_from_mc(struct uml_pt_regs *, mcontext_t *); 12 extern void get_mc_from_regs(struct uml_pt_regs *regs, mcontext_t *mc, 13 int single_stepping); 14 15 extern int get_stub_state(struct uml_pt_regs *regs, struct stub_data *data, 16 unsigned long *fp_size_out); 17 extern int set_stub_state(struct uml_pt_regs *regs, struct stub_data *data, 18 int single_stepping); 19 20 #ifdef __i386__ 21 22 #define GET_FAULTINFO_FROM_MC(fi, mc) \ 23 { \ 24 (fi).cr2 = (mc)->cr2; \ 25 (fi).error_code = (mc)->gregs[REG_ERR]; \ 26 (fi).trap_no = (mc)->gregs[REG_TRAPNO]; \ 27 } 28 29 #else 30 31 #define GET_FAULTINFO_FROM_MC(fi, mc) \ 32 { \ 33 (fi).cr2 = (mc)->gregs[REG_CR2]; \ 34 (fi).error_code = (mc)->gregs[REG_ERR]; \ 35 (fi).trap_no = (mc)->gregs[REG_TRAPNO]; \ 36 } 37 38 #endif 39 40 #endif 41