| /* tc-s390.h -- Header file for tc-s390.c. |
| Copyright 2000, 2001 Free Software Foundation, Inc. |
| Written by Martin Schwidefsky (schwidefsky@de.ibm.com). |
| |
| This file is part of GAS, the GNU Assembler. |
| |
| GAS is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GAS is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GAS; see the file COPYING. If not, write to the Free |
| Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
| 02111-1307, USA. */ |
| |
| #define TC_S390 |
| |
| #ifdef ANSI_PROTOTYPES |
| struct fix; |
| #endif |
| |
| #ifndef BFD_ASSEMBLER |
| #error S390 support requires BFD_ASSEMBLER |
| #endif |
| |
| /* This expression evaluates to false if the relocation is for a local object |
| for which we still want to do the relocation at runtime. True if we |
| are willing to perform this relocation while building the .o file. |
| This is only used for pcrel relocations, so GOTOFF does not need to be |
| checked here. I am not sure if some of the others are ever used with |
| pcrel, but it is easier to be safe than sorry. */ |
| |
| #define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \ |
| ((FIX)->fx_r_type != BFD_RELOC_390_GOTENT \ |
| && ((FIX)->fx_addsy == NULL \ |
| || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \ |
| && ! S_IS_WEAK ((FIX)->fx_addsy) \ |
| && S_IS_DEFINED ((FIX)->fx_addsy) \ |
| && ! S_IS_COMMON ((FIX)->fx_addsy)))) |
| |
| #define TC_FORCE_RELOCATION(FIXP) tc_s390_force_relocation(FIXP) |
| extern int tc_s390_force_relocation PARAMS ((struct fix *)); |
| |
| #define tc_fix_adjustable(X) tc_s390_fix_adjustable(X) |
| extern int tc_s390_fix_adjustable PARAMS ((struct fix *)); |
| |
| #define TC_FIX_ADJUSTABLE(fixP) \ |
| (! symbol_used_in_reloc_p ((fixP)->fx_addsy) && tc_fix_adjustable (fixP)) |
| |
| /* The target BFD architecture. */ |
| #define TARGET_ARCH bfd_arch_s390 |
| extern enum bfd_architecture s390_arch PARAMS ((void)); |
| |
| /* The target BFD format. */ |
| #define TARGET_FORMAT s390_target_format() |
| extern const char * s390_target_format PARAMS ((void)); |
| |
| /* Set the endianness we are using. */ |
| #define TARGET_BYTES_BIG_ENDIAN 1 |
| |
| /* Whether or not the target is big endian */ |
| extern int target_big_endian; |
| |
| /* Permit temporary numeric labels. */ |
| #define LOCAL_LABELS_FB 1 |
| |
| /* $ is used to refer to the current location. */ |
| /* #define DOLLAR_DOT */ |
| |
| /* We need to be able to make relocations involving the difference of |
| two symbols. This includes the difference of two symbols when |
| one of them is undefined (this comes up in PIC code generation). |
| */ |
| #define UNDEFINED_DIFFERENCE_OK |
| |
| /* foo-. gets turned into PC relative relocs */ |
| #define DIFF_EXPR_OK |
| |
| /* We don't need to handle .word strangely. */ |
| #define WORKING_DOT_WORD |
| |
| #define md_number_to_chars number_to_chars_bigendian |
| |
| #define md_do_align(n, fill, len, max, around) \ |
| if ((n) && !need_pass_2 && (fill == 0) && \ |
| (bfd_get_section_flags (stdoutput, now_seg) & SEC_CODE) != 0) { \ |
| char *p; \ |
| p = frag_var (rs_align_code, 15, 1, (relax_substateT) max, \ |
| (symbolS *) 0, (offsetT) (n), (char *) 0); \ |
| *p = 0x07; \ |
| goto around; \ |
| } |
| |
| extern void s390_align_code PARAMS ((fragS *, int)); |
| |
| #define HANDLE_ALIGN(fragP) \ |
| if (fragP->fr_type == rs_align_code) \ |
| s390_align_code (fragP, (fragP->fr_next->fr_address \ |
| - fragP->fr_address \ |
| - fragP->fr_fix)); |
| |
| /* call md_pcrel_from_section, not md_pcrel_from */ |
| #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section(FIXP, SEC) |
| extern long md_pcrel_from_section PARAMS ((struct fix *, segT)); |
| |
| #define md_operand(x) |
| |
| extern void s390_md_end PARAMS ((void)); |
| #define md_end() s390_md_end () |