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) 2000-2017 Julian Seward 11 jseward (at) 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 58 typedef 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 } misc; 100 } 101 UnwindStartRegs; 102 103 104 #endif // __PUB_CORE_BASICS_H 105 106 /*--------------------------------------------------------------------*/ 107 /*--- end ---*/ 108 /*--------------------------------------------------------------------*/ 109
