1 /* -*- mode: C; c-basic-offset: 3; -*- */ 2 3 /*---------------------------------------------------------------*/ 4 /*--- begin guest_s390_defs.h ---*/ 5 /*---------------------------------------------------------------*/ 6 7 /* 8 This file is part of Valgrind, a dynamic binary instrumentation 9 framework. 10 11 Copyright IBM Corp. 2010-2012 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., 51 Franklin Street, Fifth Floor, Boston, MA 26 02110-1301, USA. 27 28 The GNU General Public License is contained in the file COPYING. 29 */ 30 31 /* Contributed by Florian Krohm */ 32 33 #ifndef __VEX_GUEST_S390_DEFS_H 34 #define __VEX_GUEST_S390_DEFS_H 35 36 #include "libvex_basictypes.h" // offsetof 37 #include "libvex_ir.h" // IRSB (needed by bb_to_IR.h) 38 #include "libvex.h" // VexArch (needed by bb_to_IR.h) 39 #include "guest_generic_bb_to_IR.h" // DisResult 40 #include "libvex_guest_s390x.h" // VexGuestS390XState 41 42 43 /* Convert one s390 insn to IR. See the type DisOneInstrFn in 44 bb_to_IR.h. */ 45 DisResult disInstr_S390 ( IRSB* irbb, 46 Bool (*resteerOkFn) ( void*, Addr64 ), 47 Bool resteerCisOk, 48 void* callback_opaque, 49 UChar* guest_code, 50 Long delta, 51 Addr64 guest_IP, 52 VexArch guest_arch, 53 VexArchInfo* archinfo, 54 VexAbiInfo* abiinfo, 55 Bool host_bigendian ); 56 57 /* Used by the optimiser to specialise calls to helpers. */ 58 IRExpr* guest_s390x_spechelper ( HChar *function_name, 59 IRExpr **args, 60 IRStmt **precedingStmts, 61 Int n_precedingStmts); 62 63 64 /* Describes to the optimser which part of the guest state require 65 precise memory exceptions. This is logically part of the guest 66 state description. */ 67 Bool guest_s390x_state_requires_precise_mem_exns ( Int, Int ); 68 69 extern VexGuestLayout s390xGuest_layout; 70 71 72 #define S390X_GUEST_OFFSET(x) offsetof(VexGuestS390XState, x) 73 74 /*------------------------------------------------------------*/ 75 /*--- Helper functions. ---*/ 76 /*------------------------------------------------------------*/ 77 void s390x_dirtyhelper_EX(ULong torun); 78 ULong s390x_dirtyhelper_STCK(ULong *addr); 79 ULong s390x_dirtyhelper_STCKF(ULong *addr); 80 ULong s390x_dirtyhelper_STCKE(ULong *addr); 81 ULong s390x_dirtyhelper_STFLE(VexGuestS390XState *guest_state, ULong *addr); 82 void s390x_dirtyhelper_CUxy(UChar *addr, ULong data, ULong num_bytes); 83 84 ULong s390_do_cu12_cu14_helper1(UInt byte1, UInt etf3_and_m3_is_1); 85 ULong s390_do_cu12_helper2(UInt byte1, UInt byte2, UInt byte3, UInt byte4, 86 ULong stuff); 87 ULong s390_do_cu14_helper2(UInt byte1, UInt byte2, UInt byte3, UInt byte4, 88 ULong stuff); 89 ULong s390_do_cu21(UInt srcvalue, UInt low_surrogate); 90 ULong s390_do_cu24(UInt srcvalue, UInt low_surrogate); 91 ULong s390_do_cu41(UInt srcvalue); 92 ULong s390_do_cu42(UInt srcvalue); 93 UInt s390_do_cvb(ULong decimal); 94 ULong s390_do_cvd(ULong binary); 95 96 /* The various ways to compute the condition code. */ 97 enum { 98 S390_CC_OP_BITWISE = 0, 99 S390_CC_OP_SIGNED_COMPARE = 1, 100 S390_CC_OP_UNSIGNED_COMPARE = 2, 101 S390_CC_OP_SIGNED_ADD_32 = 3, 102 S390_CC_OP_SIGNED_ADD_64 = 4, 103 S390_CC_OP_UNSIGNED_ADD_32 = 5, 104 S390_CC_OP_UNSIGNED_ADD_64 = 6, 105 S390_CC_OP_UNSIGNED_ADDC_32 = 7, 106 S390_CC_OP_UNSIGNED_ADDC_64 = 8, 107 S390_CC_OP_SIGNED_SUB_32 = 9, 108 S390_CC_OP_SIGNED_SUB_64 = 10, 109 S390_CC_OP_UNSIGNED_SUB_32 = 11, 110 S390_CC_OP_UNSIGNED_SUB_64 = 12, 111 S390_CC_OP_UNSIGNED_SUBB_32 = 13, 112 S390_CC_OP_UNSIGNED_SUBB_64 = 14, 113 S390_CC_OP_LOAD_AND_TEST = 15, 114 S390_CC_OP_LOAD_POSITIVE_32 = 16, 115 S390_CC_OP_LOAD_POSITIVE_64 = 17, 116 S390_CC_OP_TEST_UNDER_MASK_8 = 18, 117 S390_CC_OP_TEST_UNDER_MASK_16 = 19, 118 S390_CC_OP_SHIFT_LEFT_32 = 20, 119 S390_CC_OP_SHIFT_LEFT_64 = 21, 120 S390_CC_OP_INSERT_CHAR_MASK_32 = 22, 121 S390_CC_OP_BFP_RESULT_32 = 23, 122 S390_CC_OP_BFP_RESULT_64 = 24, 123 S390_CC_OP_BFP_RESULT_128 = 25, 124 S390_CC_OP_BFP_32_TO_INT_32 = 26, 125 S390_CC_OP_BFP_64_TO_INT_32 = 27, 126 S390_CC_OP_BFP_128_TO_INT_32 = 28, 127 S390_CC_OP_BFP_32_TO_INT_64 = 29, 128 S390_CC_OP_BFP_64_TO_INT_64 = 30, 129 S390_CC_OP_BFP_128_TO_INT_64 = 31, 130 S390_CC_OP_BFP_TDC_32 = 32, 131 S390_CC_OP_BFP_TDC_64 = 33, 132 S390_CC_OP_BFP_TDC_128 = 34, 133 S390_CC_OP_SET = 35 134 }; 135 136 /*------------------------------------------------------------*/ 137 /*--- Thunk layout ---*/ 138 /*------------------------------------------------------------*/ 139 140 /* 141 Z -- value is zero extended to 32 / 64 bit 142 S -- value is sign extended to 32 / 64 bit 143 F -- a binary floating point value 144 145 +--------------------------------+-----------------------+----------------------+-------------+ 146 | op | cc_dep1 | cc_dep2 | cc_ndep | 147 +--------------------------------+-----------------------+----------------------+-------------+ 148 | S390_CC_OP_BITWISE | Z result | | | 149 | S390_CC_OP_SIGNED_COMPARE | S 1st operand | S 2nd operand | | 150 | S390_CC_OP_UNSIGNED_COMPARE | Z 1st operand | Z 2nd operand | | 151 | S390_CC_OP_SIGNED_ADD_32 | S 1st operand | S 2nd operand | | 152 | S390_CC_OP_SIGNED_ADD_64 | S 1st operand | S 2nd operand | | 153 | S390_CC_OP_UNSIGNED_ADD_32 | Z 1st operand | Z 2nd operand | | 154 | S390_CC_OP_UNSIGNED_ADD_64 | Z 1st operand | Z 2nd operand | | 155 | S390_CC_OP_UNSIGNED_ADDC_32 | Z 1st operand | Z 2nd operand | Z carry in | 156 | S390_CC_OP_UNSIGNED_ADDC_64 | Z 1st operand | Z 2nd operand | Z carry in | 157 | S390_CC_OP_SIGNED_SUB_32 | S left operand | S right operand | | 158 | S390_CC_OP_SIGNED_SUB_64 | S left operand | S right operand | | 159 | S390_CC_OP_UNSIGNED_SUB_32 | Z left operand | Z right operand | | 160 | S390_CC_OP_UNSIGNED_SUB_64 | Z left operand | Z right operand | | 161 | S390_CC_OP_UNSIGNED_SUBB_32 | Z left operand | Z right operand | Z borrow in | 162 | S390_CC_OP_UNSIGNED_SUBB_64 | Z left operand | Z right operand | Z borrow in | 163 | S390_CC_OP_LOAD_AND_TEST | S loaded value | | | 164 | S390_CC_OP_LOAD_POSITIVE_32 | S loaded value | | | 165 | S390_CC_OP_LOAD_POSITIVE_64 | S loaded value | | | 166 | S390_CC_OP_TEST_UNDER_MASK_8 | Z tested value | Z mask | | 167 | S390_CC_OP_TEST_UNDER_MASK_16 | Z tested value | Z mask | | 168 | S390_CC_OP_SHIFT_LEFT_32 | Z value to be shifted | Z shift amount | | 169 | S390_CC_OP_SHIFT_LEFT_64 | Z value to be shifted | Z shift amount | | 170 | S390_CC_OP_INSERT_CHAR_MASK_32 | Z result | Z mask | | 171 | S390_CC_OP_BFP_RESULT_32 | F result | | | 172 | S390_CC_OP_BFP_RESULT_64 | F result | | | 173 | S390_CC_OP_BFP_RESULT_128 | F result hi 64 bits | F result low 64 bits | | 174 | S390_CC_OP_BFP_32_TO_INT_32 | F source | | | 175 | S390_CC_OP_BFP_64_TO_INT_32 | F source | | | 176 | S390_CC_OP_BFP_128_TO_INT_32 | F source hi 64 bits | | | 177 | S390_CC_OP_BFP_32_TO_INT_64 | F source | | | 178 | S390_CC_OP_BFP_64_TO_INT_64 | F source | | | 179 | S390_CC_OP_BFP_128_TO_INT_64 | F source hi 64 bits | | | 180 | S390_CC_OP_BFP_TDC_32 | F value | Z class | | 181 | S390_CC_OP_BFP_TDC_64 | F value | Z class | | 182 | S390_CC_OP_BFP_TDC_128 | F value hi 64 bits | F value low 64 bits | Z class | 183 | S390_CC_OP_SET | Z condition code | | | 184 +--------------------------------+-----------------------+----------------------+-------------+ 185 */ 186 187 /*------------------------------------------------------------*/ 188 /*--- Condition code helpers. ---*/ 189 /*------------------------------------------------------------*/ 190 UInt s390_calculate_cc(ULong cc_op, ULong cc_dep1, ULong cc_dep2, 191 ULong cc_ndep); 192 UInt s390_calculate_cond(ULong mask, ULong op, ULong dep1, ULong dep2, 193 ULong ndep); 194 195 /* Size of special instruction preamble */ 196 #define S390_SPECIAL_OP_PREAMBLE_SIZE 8 197 198 /* Size of special instructions */ 199 #define S390_SPECIAL_OP_SIZE 2 200 201 /* Last target instruction for the EX helper */ 202 extern ULong last_execute_target; 203 204 /*---------------------------------------------------------------*/ 205 /*--- end guest_s390_defs.h ---*/ 206 /*---------------------------------------------------------------*/ 207 208 #endif /* __VEX_GUEST_S390_DEFS_H */ 209