1 /* tc-microblaze.h -- Header file for tc-microblaze.c. 2 3 Copyright 2009 Free Software Foundation, Inc. 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 #ifndef TC_MICROBLAZE 23 #define TC_MICROBLAZE 1 24 25 #define TARGET_ARCH bfd_arch_microblaze 26 /* Used to initialise target_big_endian. */ 27 #define TARGET_BYTES_BIG_ENDIAN 1 28 29 #define IGNORE_NONSTANDARD_ESCAPES 30 31 #define TC_RELOC_MANGLE(a,b,c) tc_reloc_mangle (a, b, c) 32 33 /* We need to handle expressions of type "symbol op symbol" and create 34 relocs for such expressions as -relax in linker can change the value 35 of such expressions */ 36 #define TC_CONS_FIX_NEW cons_fix_new_microblaze 37 #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_cons_expression_microblaze (EXP, NBYTES) 38 extern void parse_cons_expression_microblaze PARAMS ((expressionS *, int)); 39 40 #define TC_FORCE_RELOCATION_SECTION(FIXP,SEG) 1 41 #define UNDEFINED_DIFFERENCE_OK 1 42 43 #define TC_FORCE_RELOCATION_LOCAL(FIX) \ 44 (!(FIX)->fx_pcrel \ 45 || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_64_GOT \ 46 || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_64_PLT \ 47 || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_64_GOTOFF \ 48 || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_32_GOTOFF \ 49 || TC_FORCE_RELOCATION (FIX)) 50 51 #define tc_fix_adjustable(X) tc_microblaze_fix_adjustable(X) 52 extern int tc_microblaze_fix_adjustable (struct fix *); 53 54 extern const struct relax_type md_relax_table[]; 55 #define TC_GENERIC_RELAX_TABLE md_relax_table 56 57 /* We don't need to handle .word strangely. */ 58 #define WORKING_DOT_WORD 59 60 #define LISTING_HEADER "Xilinx MicroBlaze GAS Listing" 61 #define LISTING_LHS_CONT_LINES 4 62 63 #define NEED_FX_R_TYPE 1 64 65 /* We want local label support. */ 66 #define LOCAL_LABELS_FB 1 67 68 /* Want the section information too... */ 69 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC) 70 71 #define MD_APPLY_FIX3 /* We want the segment as well. */ 72 73 /* We set the fx_done field appropriately in md_apply_fix. */ 74 #define TC_HANDLES_FX_DONE 75 76 #ifdef OBJ_ELF 77 78 #define TARGET_FORMAT (target_big_endian ? "elf32-microblaze" : "elf32-microblaze-little") 79 80 #define ELF_TC_SPECIAL_SECTIONS \ 81 { ".sdata", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, \ 82 { ".sbss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, \ 83 { ".sdata2", SHT_PROGBITS, SHF_ALLOC }, \ 84 { ".sbss2", SHT_PROGBITS, SHF_ALLOC }, \ 85 /* Other special sections not generated by the assembler: .reginfo, 86 .liblist, .conflict, .gptab, .got, .dynamic, .rel.dyn. */ 87 88 #endif /* OBJ_ELF */ 89 90 #ifndef TARGET_FORMAT 91 # error No target format specified. 92 #endif 93 94 #include "write.h" /* For definition of fixS */ 95 96 extern void md_begin (void); 97 extern void md_assemble (char *); 98 extern symbolS * md_undefined_symbol (char *); 99 extern char * md_atof (int, char *, int *); 100 extern int md_parse_option (int, char *); 101 extern void md_show_usage (FILE *); 102 extern void md_convert_frag (bfd *, segT, fragS *); 103 extern void md_operand (expressionS *); 104 extern int md_estimate_size_before_relax (fragS *, segT); 105 extern void md_number_to_chars (char *, valueT, int); 106 extern valueT md_section_align (segT, valueT); 107 extern long md_pcrel_from_section (fixS *, segT); 108 extern arelent * tc_gen_reloc (asection *, fixS *); 109 extern void cons_fix_new_microblaze (fragS *, int, int, expressionS *); 110 extern void md_apply_fix3 (fixS *, valueT *, segT); 111 112 #define EXTERN_FORCE_RELOC -1 113 114 #endif /* TC_MICROBLAZE */ 115