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322 lines
8.4 KiB
C
322 lines
8.4 KiB
C
/* Target-dependent code for s390.
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Copyright (C) 2003-2021 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef S390_TDEP_H
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#define S390_TDEP_H
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#include "prologue-value.h"
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enum s390_abi_kind
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{
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ABI_NONE,
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ABI_LINUX_S390,
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ABI_LINUX_ZSERIES
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};
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enum s390_vector_abi_kind
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{
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S390_VECTOR_ABI_NONE,
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S390_VECTOR_ABI_128
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};
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/* The tdep structure. */
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struct gdbarch_tdep
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{
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/* Target description. */
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const struct target_desc *tdesc;
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/* ABI version. */
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enum s390_abi_kind abi;
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/* Vector ABI. */
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enum s390_vector_abi_kind vector_abi;
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/* Pseudo register numbers. */
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int gpr_full_regnum;
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int pc_regnum;
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int cc_regnum;
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int v0_full_regnum;
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bool have_upper;
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bool have_linux_v1;
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bool have_linux_v2;
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bool have_tdb;
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bool have_vx;
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bool have_gs;
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/* Hook to record OS specific systemcall. */
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int (*s390_syscall_record) (struct regcache *regcache, LONGEST svc_number);
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};
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/* Decoding S/390 instructions. */
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/* Named opcode values for the S/390 instructions we recognize. Some
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instructions have their opcode split across two fields; those are the
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op1_* and op2_* enums. */
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enum
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{
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op1_lhi = 0xa7, op2_lhi = 0x08,
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op1_lghi = 0xa7, op2_lghi = 0x09,
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op1_lgfi = 0xc0, op2_lgfi = 0x01,
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op_lr = 0x18,
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op_lgr = 0xb904,
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op_l = 0x58,
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op1_ly = 0xe3, op2_ly = 0x58,
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op1_lg = 0xe3, op2_lg = 0x04,
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op_lm = 0x98,
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op1_lmy = 0xeb, op2_lmy = 0x98,
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op1_lmg = 0xeb, op2_lmg = 0x04,
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op_st = 0x50,
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op1_sty = 0xe3, op2_sty = 0x50,
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op1_stg = 0xe3, op2_stg = 0x24,
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op_std = 0x60,
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op_stm = 0x90,
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op1_stmy = 0xeb, op2_stmy = 0x90,
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op1_stmg = 0xeb, op2_stmg = 0x24,
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op1_aghi = 0xa7, op2_aghi = 0x0b,
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op1_ahi = 0xa7, op2_ahi = 0x0a,
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op1_agfi = 0xc2, op2_agfi = 0x08,
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op1_afi = 0xc2, op2_afi = 0x09,
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op1_algfi= 0xc2, op2_algfi= 0x0a,
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op1_alfi = 0xc2, op2_alfi = 0x0b,
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op_ar = 0x1a,
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op_agr = 0xb908,
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op_a = 0x5a,
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op1_ay = 0xe3, op2_ay = 0x5a,
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op1_ag = 0xe3, op2_ag = 0x08,
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op1_slgfi= 0xc2, op2_slgfi= 0x04,
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op1_slfi = 0xc2, op2_slfi = 0x05,
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op_sr = 0x1b,
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op_sgr = 0xb909,
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op_s = 0x5b,
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op1_sy = 0xe3, op2_sy = 0x5b,
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op1_sg = 0xe3, op2_sg = 0x09,
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op_nr = 0x14,
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op_ngr = 0xb980,
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op_la = 0x41,
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op1_lay = 0xe3, op2_lay = 0x71,
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op1_larl = 0xc0, op2_larl = 0x00,
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op_basr = 0x0d,
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op_bas = 0x4d,
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op_bcr = 0x07,
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op_bc = 0x47,
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op_bctr = 0x06,
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op_bctgr = 0xb946,
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op_bct = 0x46,
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op1_bctg = 0xe3, op2_bctg = 0x46,
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op_bxh = 0x86,
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op1_bxhg = 0xeb, op2_bxhg = 0x44,
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op_bxle = 0x87,
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op1_bxleg= 0xeb, op2_bxleg= 0x45,
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op1_bras = 0xa7, op2_bras = 0x05,
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op1_brasl= 0xc0, op2_brasl= 0x05,
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op1_brc = 0xa7, op2_brc = 0x04,
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op1_brcl = 0xc0, op2_brcl = 0x04,
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op1_brct = 0xa7, op2_brct = 0x06,
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op1_brctg= 0xa7, op2_brctg= 0x07,
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op_brxh = 0x84,
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op1_brxhg= 0xec, op2_brxhg= 0x44,
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op_brxle = 0x85,
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op1_brxlg= 0xec, op2_brxlg= 0x45,
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op_svc = 0x0a,
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};
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/* Hardware capabilities. */
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#ifndef HWCAP_S390_HIGH_GPRS
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#define HWCAP_S390_HIGH_GPRS 512
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#endif
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#ifndef HWCAP_S390_TE
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#define HWCAP_S390_TE 1024
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#endif
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#ifndef HWCAP_S390_VX
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#define HWCAP_S390_VX 2048
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#endif
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#ifndef HWCAP_S390_GS
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#define HWCAP_S390_GS 16384
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#endif
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/* Register information. */
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/* Program Status Word. */
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#define S390_PSWM_REGNUM 0
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#define S390_PSWA_REGNUM 1
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/* General Purpose Registers. */
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#define S390_R0_REGNUM 2
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#define S390_R1_REGNUM 3
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#define S390_R2_REGNUM 4
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#define S390_R3_REGNUM 5
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#define S390_R4_REGNUM 6
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#define S390_R5_REGNUM 7
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#define S390_R6_REGNUM 8
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#define S390_R7_REGNUM 9
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#define S390_R8_REGNUM 10
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#define S390_R9_REGNUM 11
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#define S390_R10_REGNUM 12
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#define S390_R11_REGNUM 13
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#define S390_R12_REGNUM 14
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#define S390_R13_REGNUM 15
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#define S390_R14_REGNUM 16
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#define S390_R15_REGNUM 17
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/* Access Registers. */
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#define S390_A0_REGNUM 18
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#define S390_A1_REGNUM 19
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#define S390_A2_REGNUM 20
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#define S390_A3_REGNUM 21
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#define S390_A4_REGNUM 22
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#define S390_A5_REGNUM 23
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#define S390_A6_REGNUM 24
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#define S390_A7_REGNUM 25
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#define S390_A8_REGNUM 26
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#define S390_A9_REGNUM 27
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#define S390_A10_REGNUM 28
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#define S390_A11_REGNUM 29
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#define S390_A12_REGNUM 30
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#define S390_A13_REGNUM 31
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#define S390_A14_REGNUM 32
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#define S390_A15_REGNUM 33
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/* Floating Point Control Word. */
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#define S390_FPC_REGNUM 34
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/* Floating Point Registers. */
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#define S390_F0_REGNUM 35
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#define S390_F1_REGNUM 36
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#define S390_F2_REGNUM 37
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#define S390_F3_REGNUM 38
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#define S390_F4_REGNUM 39
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#define S390_F5_REGNUM 40
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#define S390_F6_REGNUM 41
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#define S390_F7_REGNUM 42
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#define S390_F8_REGNUM 43
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#define S390_F9_REGNUM 44
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#define S390_F10_REGNUM 45
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#define S390_F11_REGNUM 46
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#define S390_F12_REGNUM 47
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#define S390_F13_REGNUM 48
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#define S390_F14_REGNUM 49
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#define S390_F15_REGNUM 50
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/* General Purpose Register Upper Halves. */
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#define S390_R0_UPPER_REGNUM 51
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#define S390_R1_UPPER_REGNUM 52
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#define S390_R2_UPPER_REGNUM 53
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#define S390_R3_UPPER_REGNUM 54
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#define S390_R4_UPPER_REGNUM 55
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#define S390_R5_UPPER_REGNUM 56
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#define S390_R6_UPPER_REGNUM 57
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#define S390_R7_UPPER_REGNUM 58
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#define S390_R8_UPPER_REGNUM 59
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#define S390_R9_UPPER_REGNUM 60
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#define S390_R10_UPPER_REGNUM 61
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#define S390_R11_UPPER_REGNUM 62
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#define S390_R12_UPPER_REGNUM 63
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#define S390_R13_UPPER_REGNUM 64
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#define S390_R14_UPPER_REGNUM 65
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#define S390_R15_UPPER_REGNUM 66
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/* GNU/Linux-specific optional registers. */
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#define S390_ORIG_R2_REGNUM 67
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#define S390_LAST_BREAK_REGNUM 68
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#define S390_SYSTEM_CALL_REGNUM 69
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/* Transaction diagnostic block. */
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#define S390_TDB_DWORD0_REGNUM 70
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#define S390_TDB_ABORT_CODE_REGNUM 71
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#define S390_TDB_CONFLICT_TOKEN_REGNUM 72
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#define S390_TDB_ATIA_REGNUM 73
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#define S390_TDB_R0_REGNUM 74
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#define S390_TDB_R1_REGNUM 75
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#define S390_TDB_R2_REGNUM 76
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#define S390_TDB_R3_REGNUM 77
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#define S390_TDB_R4_REGNUM 78
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#define S390_TDB_R5_REGNUM 79
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#define S390_TDB_R6_REGNUM 80
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#define S390_TDB_R7_REGNUM 81
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#define S390_TDB_R8_REGNUM 82
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#define S390_TDB_R9_REGNUM 83
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#define S390_TDB_R10_REGNUM 84
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#define S390_TDB_R11_REGNUM 85
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#define S390_TDB_R12_REGNUM 86
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#define S390_TDB_R13_REGNUM 87
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#define S390_TDB_R14_REGNUM 88
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#define S390_TDB_R15_REGNUM 89
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/* Vector registers. */
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#define S390_V0_LOWER_REGNUM 90
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#define S390_V1_LOWER_REGNUM 91
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#define S390_V2_LOWER_REGNUM 92
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#define S390_V3_LOWER_REGNUM 93
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#define S390_V4_LOWER_REGNUM 94
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#define S390_V5_LOWER_REGNUM 95
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#define S390_V6_LOWER_REGNUM 96
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#define S390_V7_LOWER_REGNUM 97
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#define S390_V8_LOWER_REGNUM 98
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#define S390_V9_LOWER_REGNUM 99
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#define S390_V10_LOWER_REGNUM 100
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#define S390_V11_LOWER_REGNUM 101
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#define S390_V12_LOWER_REGNUM 102
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#define S390_V13_LOWER_REGNUM 103
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#define S390_V14_LOWER_REGNUM 104
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#define S390_V15_LOWER_REGNUM 105
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#define S390_V16_REGNUM 106
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#define S390_V17_REGNUM 107
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#define S390_V18_REGNUM 108
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#define S390_V19_REGNUM 109
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#define S390_V20_REGNUM 110
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#define S390_V21_REGNUM 111
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#define S390_V22_REGNUM 112
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#define S390_V23_REGNUM 113
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#define S390_V24_REGNUM 114
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#define S390_V25_REGNUM 115
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#define S390_V26_REGNUM 116
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#define S390_V27_REGNUM 117
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#define S390_V28_REGNUM 118
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#define S390_V29_REGNUM 119
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#define S390_V30_REGNUM 120
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#define S390_V31_REGNUM 121
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#define S390_GSD_REGNUM 122
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#define S390_GSSM_REGNUM 123
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#define S390_GSEPLA_REGNUM 124
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#define S390_BC_GSD_REGNUM 125
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#define S390_BC_GSSM_REGNUM 126
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#define S390_BC_GSEPLA_REGNUM 127
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/* Total. */
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#define S390_NUM_REGS 128
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#define S390_NUM_GPRS 16
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#define S390_NUM_FPRS 16
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#define S390_MAX_INSTR_SIZE 6
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/* Special register usage. */
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#define S390_SP_REGNUM S390_R15_REGNUM
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#define S390_RETADDR_REGNUM S390_R14_REGNUM
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#define S390_FRAME_REGNUM S390_R11_REGNUM
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/* Frame unwinding. */
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extern struct value *s390_trad_frame_prev_register
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(struct frame_info *this_frame, struct trad_frame_saved_reg saved_regs[],
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int regnum);
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extern struct target_desc *tdesc_s390_linux32;
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extern struct target_desc *tdesc_s390x_linux64;
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#endif /* S390_TDEP_H */
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