1
2/*--------------------------------------------------------------------*/
3/*--- Header included by every core C file.      pub_core_basics.h ---*/
4/*--------------------------------------------------------------------*/
5
6/*
7   This file is part of Valgrind, a dynamic binary instrumentation
8   framework.
9
10   Copyright (C) 2000-2015 Julian Seward
11      jseward@acm.org
12
13   This program is free software; you can redistribute it and/or
14   modify it under the terms of the GNU General Public License as
15   published by the Free Software Foundation; either version 2 of the
16   License, or (at your option) any later version.
17
18   This program is distributed in the hope that it will be useful, but
19   WITHOUT ANY WARRANTY; without even the implied warranty of
20   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
21   General Public License for more details.
22
23   You should have received a copy of the GNU General Public License
24   along with this program; if not, write to the Free Software
25   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
26   02111-1307, USA.
27
28   The GNU General Public License is contained in the file COPYING.
29*/
30
31#ifndef __PUB_CORE_BASICS_H
32#define __PUB_CORE_BASICS_H
33
34//--------------------------------------------------------------------
35// PURPOSE: This header should be imported by every single C file
36// in the core.  It contains the basic types and other things needed
37// everywhere.
38//--------------------------------------------------------------------
39
40#include "pub_tool_basics.h"
41
42/* ---------------------------------------------------------------------
43   A struct to hold starting values for stack unwinding.
44   ------------------------------------------------------------------ */
45
46/* This really shouldn't be here.  But putting it elsewhere leads to a
47   veritable swamp of new module cycles. */
48
49/* To support CFA-based stack unwinding, and stack unwinding in
50   general, we need to be able to get hold of the values of specific
51   registers, in order to start the unwinding process.  This is
52   unavoidably arch and platform dependent.  Here is a struct which
53   holds the relevant values.  All platforms must have a program
54   counter and a stack pointer register, but the other fields (frame
55   pointer? link register? misc other regs?) are ad-hoc.  Note, the
56   common fields are 64-bit, so as to make this host-independent. */
57
58typedef
59   struct {
60      ULong r_pc; /* x86:EIP, amd64:RIP, ppc:CIA, arm:R15, mips:pc */
61      ULong r_sp; /* x86:ESP, amd64:RSP, ppc:R1,  arm:R13, mips:sp */
62      union {
63         struct {
64            UInt r_ebp;
65         } X86;
66         struct {
67            ULong r_rbp;
68         } AMD64;
69         struct {
70            UInt r_lr;
71         } PPC32;
72         struct {
73            ULong r_lr;
74         } PPC64;
75         struct {
76            UInt r14;
77            UInt r12;
78            UInt r11;
79            UInt r7;
80         } ARM;
81         struct {
82            ULong x29; /* FP */
83            ULong x30; /* LR */
84         } ARM64;
85         struct {
86            ULong r_fp;
87            ULong r_lr;
88         } S390X;
89         struct {
90            UInt r30;  /* Stack frame pointer or subroutine variable  */
91            UInt r31;  /* Return address of the last subroutine call */
92            UInt r28;
93         } MIPS32;
94         struct {
95            ULong r30;  /* Stack frame pointer or subroutine variable */
96            ULong r31;  /* Return address of the last subroutine call */
97            ULong r28;
98         } MIPS64;
99         struct {
100            ULong r52;
101            ULong r55;
102         } TILEGX;
103      } misc;
104   }
105   UnwindStartRegs;
106
107
108#endif   // __PUB_CORE_BASICS_H
109
110/*--------------------------------------------------------------------*/
111/*--- end                                                          ---*/
112/*--------------------------------------------------------------------*/
113