168 lines
6.2 KiB
C
168 lines
6.2 KiB
C
/* tc-cris.h -- Header file for tc-cris.c, the CRIS GAS port.
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Copyright (C) 2000-2018 Free Software Foundation, Inc.
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Contributed by Axis Communications AB, Lund, Sweden.
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Originally written for GAS 1.38.1 by Mikael Asker.
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Updates, BFDizing, GNUifying and ELF by Hans-Peter Nilsson.
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This file is part of GAS, the GNU Assembler.
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GAS 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, or (at your option)
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any later version.
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GAS 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 GAS; see the file COPYING. If not, write to the
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Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/* See the GAS "internal" document for general documentation on this.
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It is called internals.texi (internals.info when makeinfo:d), but is
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not installed or makeinfo:d by "make info". */
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/* Functions and variables that aren't declared in tc.h are declared here,
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with the type/prototype that is used in the local extern-declaration of
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their usage. */
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#ifndef TC_CRIS
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#define TC_CRIS
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/* Multi-target support is always on. */
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extern const char *cris_target_format (void);
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#define TARGET_FORMAT cris_target_format ()
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#define TARGET_ARCH bfd_arch_cris
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extern unsigned int cris_mach (void);
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#define TARGET_MACH (cris_mach ())
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#define TARGET_BYTES_BIG_ENDIAN 0
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extern const char *md_shortopts;
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extern struct option md_longopts[];
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extern size_t md_longopts_size;
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extern const pseudo_typeS md_pseudo_table[];
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#define tc_comment_chars cris_comment_chars
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extern const char cris_comment_chars[];
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extern const char line_comment_chars[];
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extern const char line_separator_chars[];
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/* This should be optional, since it is ignored as an escape (assumed to
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be itself) if it is not recognized. */
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#define ONLY_STANDARD_ESCAPES
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/* Note that we do not define TC_EQUAL_IN_INSN, since its current use is
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in the instruction rather than the operand, and thus does not come to
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use for side-effect assignments such as "and.d [r0 = r1 + 42], r3". */
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#define md_operand(x)
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#define md_number_to_chars number_to_chars_littleendian
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extern const struct relax_type md_cris_relax_table[];
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#define TC_GENERIC_RELAX_TABLE md_cris_relax_table
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long cris_relax_frag (segT, fragS *, long);
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/* GAS only handles relaxations for pc-relative data targeting addresses
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in the same segment, so we have to handle the rest on our own. */
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#define md_relax_frag(SEG, FRAGP, STRETCH) \
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((FRAGP)->fr_symbol != NULL \
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&& S_GET_SEGMENT ((FRAGP)->fr_symbol) == (SEG) \
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? relax_frag (SEG, FRAGP, STRETCH) \
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: cris_relax_frag (SEG, FRAGP, STRETCH))
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#define TC_FORCE_RELOCATION(FIX) md_cris_force_relocation (FIX)
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extern int md_cris_force_relocation (struct fix *);
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#define IS_CRIS_PIC_RELOC(RTYPE) \
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((RTYPE) == BFD_RELOC_CRIS_16_GOT \
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|| (RTYPE) == BFD_RELOC_CRIS_32_GOT \
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|| (RTYPE) == BFD_RELOC_CRIS_16_GOTPLT \
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|| (RTYPE) == BFD_RELOC_CRIS_32_GOTPLT \
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|| (RTYPE) == BFD_RELOC_CRIS_32_GOTREL \
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|| (RTYPE) == BFD_RELOC_CRIS_32_PLT_GOTREL \
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|| (RTYPE) == BFD_RELOC_CRIS_32_PLT_PCREL)
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/* Make sure we don't resolve fixups for which we want to emit dynamic
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relocations. */
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#define TC_FORCE_RELOCATION_LOCAL(FIX) \
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(GENERIC_FORCE_RELOCATION_LOCAL (FIX) \
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|| IS_CRIS_PIC_RELOC ((FIX)->fx_r_type))
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/* For some reloc types, don't adjust fixups by reducing to a section
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symbol. */
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#define tc_fix_adjustable(FIX) \
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((FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \
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&& (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY \
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&& (! IS_CRIS_PIC_RELOC ((FIX)->fx_r_type) \
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|| (FIX)->fx_r_type == BFD_RELOC_CRIS_32_GOTREL))
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/* FIXME: This *should* be a redundant definition, as the
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TC_FORCE_RELOCATION* definitions already told about the cases where
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we *don't* want the symbol value calculated. Here we seem to answer
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the "are you sure" question. It certainly has very little to do with
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whether the symbol value is passed to md_apply_fix. */
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#define MD_APPLY_SYM_VALUE(FIX) 0
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/* When we have fixups against constant expressions, we get a GAS-specific
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section symbol at no extra charge for obscure reasons in
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adjust_reloc_syms. Since ELF outputs section symbols, it gladly
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outputs this "*ABS*" symbol in every object. Avoid that.
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Also, don't emit undefined symbols (that aren't used in relocations).
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They pop up when tentatively parsing register names as symbols. */
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#define tc_frob_symbol(symp, punt) \
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do { \
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if ((OUTPUT_FLAVOR == bfd_target_elf_flavour \
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&& (symp) == section_symbol (absolute_section)) \
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|| ! S_IS_DEFINED (symp)) \
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(punt) = 1; \
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} while (0)
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#define LISTING_HEADER "GAS for CRIS"
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#if 0
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/* The testsuite does not let me define these, although they IMHO should
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be preferred over the default. */
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#define LISTING_WORD_SIZE 2
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#define LISTING_LHS_WIDTH 4
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#define LISTING_LHS_WIDTH_SECOND 4
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#endif
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/* END of declaration and definitions described in the "internals"
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document. */
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/* Do this, or we will never know what hit us when the
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broken-word-fixes break. Do _not_ use WARN_SIGNED_OVERFLOW_WORD,
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it is only for use with WORKING_DOT_WORD and warns about most stuff.
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(still in 2.9.1). */
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struct broken_word;
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extern void tc_cris_check_adjusted_broken_word (offsetT,
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struct broken_word *);
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#define TC_CHECK_ADJUSTED_BROKEN_DOT_WORD(new_offset, brokw) \
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tc_cris_check_adjusted_broken_word ((offsetT) (new_offset), brokw)
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/* We don't want any implicit alignment, so we do nothing. */
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#define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) do { } while (0)
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/* CRIS instructions, with operands and prefixes included, are a multiple
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of two bytes long. */
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#define DWARF2_LINE_MIN_INSN_LENGTH 2
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/* Make port immune to unwanted difference in te-generic.h vs. te-linux.h. */
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#define LOCAL_LABELS_DOLLAR 1
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#endif /* TC_CRIS */
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/*
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* Local variables:
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* eval: (c-set-style "gnu")
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* indent-tabs-mode: t
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* End:
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*/
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