1440a403fSchristos /* tc-cris.h -- Header file for tc-cris.c, the CRIS GAS port. 2*b88e3e88Schristos Copyright (C) 2000-2020 Free Software Foundation, Inc. 3440a403fSchristos 4440a403fSchristos Contributed by Axis Communications AB, Lund, Sweden. 5440a403fSchristos Originally written for GAS 1.38.1 by Mikael Asker. 6440a403fSchristos Updates, BFDizing, GNUifying and ELF by Hans-Peter Nilsson. 7440a403fSchristos 8440a403fSchristos This file is part of GAS, the GNU Assembler. 9440a403fSchristos 10440a403fSchristos GAS is free software; you can redistribute it and/or modify 11440a403fSchristos it under the terms of the GNU General Public License as published by 12440a403fSchristos the Free Software Foundation; either version 3, or (at your option) 13440a403fSchristos any later version. 14440a403fSchristos 15440a403fSchristos GAS is distributed in the hope that it will be useful, 16440a403fSchristos but WITHOUT ANY WARRANTY; without even the implied warranty of 17440a403fSchristos MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18440a403fSchristos GNU General Public License for more details. 19440a403fSchristos 20440a403fSchristos You should have received a copy of the GNU General Public License 21440a403fSchristos along with GAS; see the file COPYING. If not, write to the 22440a403fSchristos Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, 23440a403fSchristos MA 02110-1301, USA. */ 24440a403fSchristos 25440a403fSchristos /* See the GAS "internal" document for general documentation on this. 26440a403fSchristos It is called internals.texi (internals.info when makeinfo:d), but is 27440a403fSchristos not installed or makeinfo:d by "make info". */ 28440a403fSchristos 29440a403fSchristos /* Functions and variables that aren't declared in tc.h are declared here, 30440a403fSchristos with the type/prototype that is used in the local extern-declaration of 31440a403fSchristos their usage. */ 32440a403fSchristos 33440a403fSchristos #ifndef TC_CRIS 34440a403fSchristos #define TC_CRIS 35440a403fSchristos 36440a403fSchristos /* Multi-target support is always on. */ 37440a403fSchristos extern const char *cris_target_format (void); 38440a403fSchristos #define TARGET_FORMAT cris_target_format () 39440a403fSchristos 40440a403fSchristos #define TARGET_ARCH bfd_arch_cris 41440a403fSchristos 42440a403fSchristos extern unsigned int cris_mach (void); 43440a403fSchristos #define TARGET_MACH (cris_mach ()) 44440a403fSchristos 45440a403fSchristos #define TARGET_BYTES_BIG_ENDIAN 0 46440a403fSchristos 47440a403fSchristos extern const char *md_shortopts; 48440a403fSchristos extern struct option md_longopts[]; 49440a403fSchristos extern size_t md_longopts_size; 50440a403fSchristos 51440a403fSchristos extern const pseudo_typeS md_pseudo_table[]; 52440a403fSchristos 53440a403fSchristos #define tc_comment_chars cris_comment_chars 54440a403fSchristos extern const char cris_comment_chars[]; 55440a403fSchristos extern const char line_comment_chars[]; 56440a403fSchristos extern const char line_separator_chars[]; 57440a403fSchristos 58440a403fSchristos /* This should be optional, since it is ignored as an escape (assumed to 59440a403fSchristos be itself) if it is not recognized. */ 60440a403fSchristos #define ONLY_STANDARD_ESCAPES 61440a403fSchristos 62440a403fSchristos /* Note that we do not define TC_EQUAL_IN_INSN, since its current use is 63440a403fSchristos in the instruction rather than the operand, and thus does not come to 64440a403fSchristos use for side-effect assignments such as "and.d [r0 = r1 + 42], r3". */ 65440a403fSchristos #define md_operand(x) 66440a403fSchristos 67440a403fSchristos #define md_number_to_chars number_to_chars_littleendian 68440a403fSchristos extern const struct relax_type md_cris_relax_table[]; 69440a403fSchristos #define TC_GENERIC_RELAX_TABLE md_cris_relax_table 70440a403fSchristos 71440a403fSchristos long cris_relax_frag (segT, fragS *, long); 72440a403fSchristos 73440a403fSchristos /* GAS only handles relaxations for pc-relative data targeting addresses 74440a403fSchristos in the same segment, so we have to handle the rest on our own. */ 75440a403fSchristos #define md_relax_frag(SEG, FRAGP, STRETCH) \ 76440a403fSchristos ((FRAGP)->fr_symbol != NULL \ 77440a403fSchristos && S_GET_SEGMENT ((FRAGP)->fr_symbol) == (SEG) \ 78440a403fSchristos ? relax_frag (SEG, FRAGP, STRETCH) \ 79440a403fSchristos : cris_relax_frag (SEG, FRAGP, STRETCH)) 80440a403fSchristos 81440a403fSchristos #define TC_FORCE_RELOCATION(FIX) md_cris_force_relocation (FIX) 82440a403fSchristos extern int md_cris_force_relocation (struct fix *); 83440a403fSchristos 84440a403fSchristos #define IS_CRIS_PIC_RELOC(RTYPE) \ 85440a403fSchristos ((RTYPE) == BFD_RELOC_CRIS_16_GOT \ 86440a403fSchristos || (RTYPE) == BFD_RELOC_CRIS_32_GOT \ 87440a403fSchristos || (RTYPE) == BFD_RELOC_CRIS_16_GOTPLT \ 88440a403fSchristos || (RTYPE) == BFD_RELOC_CRIS_32_GOTPLT \ 89440a403fSchristos || (RTYPE) == BFD_RELOC_CRIS_32_GOTREL \ 90440a403fSchristos || (RTYPE) == BFD_RELOC_CRIS_32_PLT_GOTREL \ 91440a403fSchristos || (RTYPE) == BFD_RELOC_CRIS_32_PLT_PCREL) 92440a403fSchristos 93440a403fSchristos /* Make sure we don't resolve fixups for which we want to emit dynamic 94440a403fSchristos relocations. */ 95440a403fSchristos #define TC_FORCE_RELOCATION_LOCAL(FIX) \ 9606324dcfSchristos (GENERIC_FORCE_RELOCATION_LOCAL (FIX) \ 9706324dcfSchristos || IS_CRIS_PIC_RELOC ((FIX)->fx_r_type)) 98440a403fSchristos 99440a403fSchristos /* For some reloc types, don't adjust fixups by reducing to a section 100440a403fSchristos symbol. */ 101440a403fSchristos #define tc_fix_adjustable(FIX) \ 102440a403fSchristos ((FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \ 103440a403fSchristos && (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY \ 104440a403fSchristos && (! IS_CRIS_PIC_RELOC ((FIX)->fx_r_type) \ 105440a403fSchristos || (FIX)->fx_r_type == BFD_RELOC_CRIS_32_GOTREL)) 106440a403fSchristos 107440a403fSchristos /* FIXME: This *should* be a redundant definition, as the 108440a403fSchristos TC_FORCE_RELOCATION* definitions already told about the cases where 109440a403fSchristos we *don't* want the symbol value calculated. Here we seem to answer 110440a403fSchristos the "are you sure" question. It certainly has very little to do with 111440a403fSchristos whether the symbol value is passed to md_apply_fix. */ 112440a403fSchristos #define MD_APPLY_SYM_VALUE(FIX) 0 113440a403fSchristos 114440a403fSchristos /* When we have fixups against constant expressions, we get a GAS-specific 115440a403fSchristos section symbol at no extra charge for obscure reasons in 116440a403fSchristos adjust_reloc_syms. Since ELF outputs section symbols, it gladly 117440a403fSchristos outputs this "*ABS*" symbol in every object. Avoid that. 118440a403fSchristos Also, don't emit undefined symbols (that aren't used in relocations). 119440a403fSchristos They pop up when tentatively parsing register names as symbols. */ 120440a403fSchristos #define tc_frob_symbol(symp, punt) \ 121440a403fSchristos do { \ 122440a403fSchristos if ((OUTPUT_FLAVOR == bfd_target_elf_flavour \ 123440a403fSchristos && (symp) == section_symbol (absolute_section)) \ 124440a403fSchristos || ! S_IS_DEFINED (symp)) \ 125440a403fSchristos (punt) = 1; \ 126440a403fSchristos } while (0) 127440a403fSchristos 128440a403fSchristos #define LISTING_HEADER "GAS for CRIS" 129440a403fSchristos 130440a403fSchristos #if 0 131440a403fSchristos /* The testsuite does not let me define these, although they IMHO should 132440a403fSchristos be preferred over the default. */ 133440a403fSchristos #define LISTING_WORD_SIZE 2 134440a403fSchristos #define LISTING_LHS_WIDTH 4 135440a403fSchristos #define LISTING_LHS_WIDTH_SECOND 4 136440a403fSchristos #endif 137440a403fSchristos 138440a403fSchristos /* END of declaration and definitions described in the "internals" 139440a403fSchristos document. */ 140440a403fSchristos 141440a403fSchristos /* Do this, or we will never know what hit us when the 142440a403fSchristos broken-word-fixes break. Do _not_ use WARN_SIGNED_OVERFLOW_WORD, 143440a403fSchristos it is only for use with WORKING_DOT_WORD and warns about most stuff. 144440a403fSchristos (still in 2.9.1). */ 145440a403fSchristos struct broken_word; 146440a403fSchristos extern void tc_cris_check_adjusted_broken_word (offsetT, 147440a403fSchristos struct broken_word *); 148440a403fSchristos #define TC_CHECK_ADJUSTED_BROKEN_DOT_WORD(new_offset, brokw) \ 149440a403fSchristos tc_cris_check_adjusted_broken_word ((offsetT) (new_offset), brokw) 150440a403fSchristos 151440a403fSchristos /* We don't want any implicit alignment, so we do nothing. */ 152440a403fSchristos #define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) do { } while (0) 153440a403fSchristos 154440a403fSchristos /* CRIS instructions, with operands and prefixes included, are a multiple 155440a403fSchristos of two bytes long. */ 156440a403fSchristos #define DWARF2_LINE_MIN_INSN_LENGTH 2 157440a403fSchristos 158440a403fSchristos /* Make port immune to unwanted difference in te-generic.h vs. te-linux.h. */ 159440a403fSchristos #define LOCAL_LABELS_DOLLAR 1 160440a403fSchristos 161440a403fSchristos #endif /* TC_CRIS */ 162440a403fSchristos /* 163440a403fSchristos * Local variables: 164440a403fSchristos * eval: (c-set-style "gnu") 165440a403fSchristos * indent-tabs-mode: t 166440a403fSchristos * End: 167440a403fSchristos */ 168