1  /* tc-s390.h -- Header file for tc-s390.c.
       2     Copyright (C) 2000-2023 Free Software Foundation, Inc.
       3     Written by Martin Schwidefsky (schwidefsky@de.ibm.com).
       4  
       5     This file is part of GAS, the GNU Assembler.
       6  
       7     GAS is free software; you can redistribute it and/or modify
       8     it under the terms of the GNU General Public License as published by
       9     the Free Software Foundation; either version 3, or (at your option)
      10     any later version.
      11  
      12     GAS is distributed in the hope that it will be useful,
      13     but WITHOUT ANY WARRANTY; without even the implied warranty of
      14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      15     GNU General Public License for more details.
      16  
      17     You should have received a copy of the GNU General Public License
      18     along with GAS; see the file COPYING.  If not, write to the Free
      19     Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
      20     02110-1301, USA.  */
      21  
      22  #define TC_S390
      23  
      24  struct fix;
      25  
      26  #define TC_FORCE_RELOCATION(FIX) tc_s390_force_relocation(FIX)
      27  extern int tc_s390_force_relocation (struct fix *);
      28  
      29  /* Don't resolve foo@PLT-bar to offset@PLT.  */
      30  #define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEG)	\
      31    (GENERIC_FORCE_RELOCATION_SUB_SAME (FIX, SEG)	\
      32     || TC_FORCE_RELOCATION (FIX))
      33  
      34  #define tc_fix_adjustable(X)  tc_s390_fix_adjustable(X)
      35  extern int tc_s390_fix_adjustable (struct fix *);
      36  
      37  /* Values passed to md_apply_fix don't include symbol values.  */
      38  #define MD_APPLY_SYM_VALUE(FIX) 0
      39  
      40  /* The target BFD architecture.  */
      41  #define TARGET_ARCH bfd_arch_s390
      42  extern enum bfd_architecture s390_arch (void);
      43  
      44  /* The target BFD format.  */
      45  #define TARGET_FORMAT s390_target_format()
      46  extern const char *s390_target_format (void);
      47  
      48  /* Set the endianness we are using.  */
      49  #define TARGET_BYTES_BIG_ENDIAN 1
      50  
      51  /* Whether or not the target is big endian */
      52  extern int target_big_endian;
      53  
      54  /* Permit temporary numeric labels.  */
      55  #define LOCAL_LABELS_FB 1
      56  
      57  /* $ is used to refer to the current location.  */
      58  /* #define DOLLAR_DOT */
      59  
      60  /* We need to be able to make relocations involving the difference of
      61     two symbols.  This includes the difference of two symbols when
      62     one of them is undefined (this comes up in PIC code generation).
      63   */
      64  #define UNDEFINED_DIFFERENCE_OK
      65  
      66  /* foo-. gets turned into PC relative relocs */
      67  #define DIFF_EXPR_OK
      68  
      69  /* We don't need to handle .word strangely.  */
      70  #define WORKING_DOT_WORD
      71  
      72  #define md_number_to_chars           number_to_chars_bigendian
      73  
      74  #define NOP_OPCODE 0x07
      75  
      76  /* call md_pcrel_from_section, not md_pcrel_from */
      77  #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section(FIX, SEC)
      78  
      79  #define md_operand(x)
      80  
      81  extern void s390_md_finish (void);
      82  #define md_finish() s390_md_finish ()
      83  
      84  #define TARGET_USE_CFIPOP 1
      85  
      86  #define tc_cfi_frame_initial_instructions s390_cfi_frame_initial_instructions
      87  extern void s390_cfi_frame_initial_instructions (void);
      88  
      89  #define tc_regname_to_dw2regnum tc_s390_regname_to_dw2regnum
      90  extern int tc_s390_regname_to_dw2regnum (char *regname);
      91  
      92  extern int s390_cie_data_alignment;
      93  
      94  #define DWARF2_LINE_MIN_INSN_LENGTH     1
      95  #define DWARF2_DEFAULT_RETURN_COLUMN    14
      96  #define DWARF2_CIE_DATA_ALIGNMENT       s390_cie_data_alignment
      97  
      98  extern void s390_elf_final_processing (void);
      99  
     100  #define elf_tc_final_processing s390_elf_final_processing