gas/config/tc-cris.h - binutils-gdb - Git at Google

 /* tc-cris.h -- Header file for tc-cris.c, the CRIS GAS port.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.

    Contributed by Axis Communications AB, Lund, Sweden.
    Originally written for GAS 1.38.1 by Mikael Asker.
    Updates, BFDizing, GNUifying and ELF by Hans-Peter Nilsson.

    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 3, 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, 51 Franklin Street - Fifth Floor, Boston,
    MA 02110-1301, USA.  */

 /* See the GAS "internal" document for general documentation on this.
    It is called internals.texi (internals.info when makeinfo:d), but is
    not installed or makeinfo:d by "make info".  */

 /* Functions and variables that aren't declared in tc.h are declared here,
    with the type/prototype that is used in the local extern-declaration of
    their usage.  */

 #ifndef TC_CRIS
 #define TC_CRIS

 /* Multi-target support is always on.  */
 extern const char *cris_target_format (void);
 #define TARGET_FORMAT cris_target_format ()

 #define TARGET_ARCH bfd_arch_cris

 extern unsigned int cris_mach (void);
 #define TARGET_MACH (cris_mach ())

 #define TARGET_BYTES_BIG_ENDIAN 0

 extern const char *md_shortopts;
 extern struct option md_longopts[];
 extern size_t md_longopts_size;

 extern const pseudo_typeS md_pseudo_table[];

 #define tc_comment_chars cris_comment_chars
 extern const char cris_comment_chars[];
 extern const char line_comment_chars[];
 extern const char line_separator_chars[];

 /* This should be optional, since it is ignored as an escape (assumed to
    be itself) if it is not recognized.  */
 #define ONLY_STANDARD_ESCAPES

 /* Note that we do not define TC_EQUAL_IN_INSN, since its current use is
    in the instruction rather than the operand, and thus does not come to
    use for side-effect assignments such as "and.d [r0 = r1 + 42], r3".  */
 #define md_operand(x)

 #define md_number_to_chars number_to_chars_littleendian
 extern const struct relax_type md_cris_relax_table[];
 #define TC_GENERIC_RELAX_TABLE md_cris_relax_table

 long cris_relax_frag (segT, fragS *, long);

 /* GAS only handles relaxations for pc-relative data targeting addresses
    in the same segment, so we have to handle the rest on our own.  */
 #define md_relax_frag(SEG, FRAGP, STRETCH)		\
  ((FRAGP)->fr_symbol != NULL				\
   && S_GET_SEGMENT ((FRAGP)->fr_symbol) == (SEG)	\
   ? relax_frag (SEG, FRAGP, STRETCH)			\
   : cris_relax_frag (SEG, FRAGP, STRETCH))

 #define TC_FORCE_RELOCATION(FIX) md_cris_force_relocation (FIX)
 extern int md_cris_force_relocation (struct fix *);

 #define IS_CRIS_PIC_RELOC(RTYPE)			\
   ((RTYPE) == BFD_RELOC_CRIS_16_GOT			\
    || (RTYPE) == BFD_RELOC_CRIS_32_GOT			\
    || (RTYPE) == BFD_RELOC_CRIS_16_GOTPLT		\
    || (RTYPE) == BFD_RELOC_CRIS_32_GOTPLT		\
    || (RTYPE) == BFD_RELOC_CRIS_32_GOTREL		\
    || (RTYPE) == BFD_RELOC_CRIS_32_PLT_GOTREL		\
    || (RTYPE) == BFD_RELOC_CRIS_32_PLT_PCREL)

 /* Make sure we don't resolve fixups for which we want to emit dynamic
    relocations.  */
 #define TC_FORCE_RELOCATION_LOCAL(FIX)			\
   (GENERIC_FORCE_RELOCATION_LOCAL (FIX)			\
    || IS_CRIS_PIC_RELOC ((FIX)->fx_r_type))

 /* For some reloc types, don't adjust fixups by reducing to a section
    symbol.  */
 #define tc_fix_adjustable(FIX)				\
  ((FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT		\
   && (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY		\
   && (! IS_CRIS_PIC_RELOC ((FIX)->fx_r_type)		\
       || (FIX)->fx_r_type == BFD_RELOC_CRIS_32_GOTREL))

 /* FIXME: This *should* be a redundant definition, as the
    TC_FORCE_RELOCATION* definitions already told about the cases where
    we *don't* want the symbol value calculated.  Here we seem to answer
    the "are you sure" question.  It certainly has very little to do with
    whether the symbol value is passed to md_apply_fix.  */
 #define MD_APPLY_SYM_VALUE(FIX) 0

 /* When we have fixups against constant expressions, we get a GAS-specific
    section symbol at no extra charge for obscure reasons in
    adjust_reloc_syms.  Since ELF outputs section symbols, it gladly
    outputs this "*ABS*" symbol in every object.  Avoid that.
    Also, don't emit undefined symbols (that aren't used in relocations).
    They pop up when tentatively parsing register names as symbols.  */
 #define tc_frob_symbol(symp, punt)			\
  do {							\
   if ((OUTPUT_FLAVOR == bfd_target_elf_flavour		\
        && (symp) == section_symbol (absolute_section))	\
       || ! S_IS_DEFINED (symp))				\
     (punt) = 1;						\
  } while (0)

 #define LISTING_HEADER "GAS for CRIS"

 #if 0
 /* The testsuite does not let me define these, although they IMHO should
    be preferred over the default.  */
 #define LISTING_WORD_SIZE 2
 #define LISTING_LHS_WIDTH 4
 #define LISTING_LHS_WIDTH_SECOND 4
 #endif

 /* END of declaration and definitions described in the "internals"
    document.  */

 /* Do this, or we will never know what hit us when the
    broken-word-fixes break.  Do _not_ use WARN_SIGNED_OVERFLOW_WORD,
    it is only for use with WORKING_DOT_WORD and warns about most stuff.
    (still in 2.9.1).  */
 struct broken_word;
 extern void tc_cris_check_adjusted_broken_word (offsetT,
 						struct broken_word *);
 #define TC_CHECK_ADJUSTED_BROKEN_DOT_WORD(new_offset, brokw) \
  tc_cris_check_adjusted_broken_word ((offsetT) (new_offset), brokw)

 /* We don't want any implicit alignment, so we do nothing.  */
 #define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) do { } while (0)

 /* CRIS instructions, with operands and prefixes included, are a multiple
    of two bytes long.  */
 #define DWARF2_LINE_MIN_INSN_LENGTH 2

 /* Make port immune to unwanted difference in te-generic.h vs. te-linux.h.  */
 #define LOCAL_LABELS_DOLLAR 1

 #endif /* TC_CRIS */
 /*
  * Local variables:
  * eval: (c-set-style "gnu")
  * indent-tabs-mode: t
  * End:
  */
	/* tc-cris.h -- Header file for tc-cris.c, the CRIS GAS port.
	Copyright (C) 2000-2021 Free Software Foundation, Inc.

	Contributed by Axis Communications AB, Lund, Sweden.
	Originally written for GAS 1.38.1 by Mikael Asker.
	Updates, BFDizing, GNUifying and ELF by Hans-Peter Nilsson.

	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 3, 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, 51 Franklin Street - Fifth Floor, Boston,
	MA 02110-1301, USA. */

	/* See the GAS "internal" document for general documentation on this.
	It is called internals.texi (internals.info when makeinfo:d), but is
	not installed or makeinfo:d by "make info". */

	/* Functions and variables that aren't declared in tc.h are declared here,
	with the type/prototype that is used in the local extern-declaration of
	their usage. */

	#ifndef TC_CRIS
	#define TC_CRIS

	/* Multi-target support is always on. */
	extern const char *cris_target_format (void);
	#define TARGET_FORMAT cris_target_format ()

	#define TARGET_ARCH bfd_arch_cris

	extern unsigned int cris_mach (void);
	#define TARGET_MACH (cris_mach ())

	#define TARGET_BYTES_BIG_ENDIAN 0

	extern const char *md_shortopts;
	extern struct option md_longopts[];
	extern size_t md_longopts_size;

	extern const pseudo_typeS md_pseudo_table[];

	#define tc_comment_chars cris_comment_chars
	extern const char cris_comment_chars[];
	extern const char line_comment_chars[];
	extern const char line_separator_chars[];

	/* This should be optional, since it is ignored as an escape (assumed to
	be itself) if it is not recognized. */
	#define ONLY_STANDARD_ESCAPES

	/* Note that we do not define TC_EQUAL_IN_INSN, since its current use is
	in the instruction rather than the operand, and thus does not come to
	use for side-effect assignments such as "and.d [r0 = r1 + 42], r3". */
	#define md_operand(x)

	#define md_number_to_chars number_to_chars_littleendian
	extern const struct relax_type md_cris_relax_table[];
	#define TC_GENERIC_RELAX_TABLE md_cris_relax_table

	long cris_relax_frag (segT, fragS *, long);

	/* GAS only handles relaxations for pc-relative data targeting addresses
	in the same segment, so we have to handle the rest on our own. */
	#define md_relax_frag(SEG, FRAGP, STRETCH) \
	((FRAGP)->fr_symbol != NULL \
	&& S_GET_SEGMENT ((FRAGP)->fr_symbol) == (SEG) \
	? relax_frag (SEG, FRAGP, STRETCH) \
	: cris_relax_frag (SEG, FRAGP, STRETCH))

	#define TC_FORCE_RELOCATION(FIX) md_cris_force_relocation (FIX)
	extern int md_cris_force_relocation (struct fix *);

	#define IS_CRIS_PIC_RELOC(RTYPE) \
	((RTYPE) == BFD_RELOC_CRIS_16_GOT \
	\|\| (RTYPE) == BFD_RELOC_CRIS_32_GOT \
	\|\| (RTYPE) == BFD_RELOC_CRIS_16_GOTPLT \
	\|\| (RTYPE) == BFD_RELOC_CRIS_32_GOTPLT \
	\|\| (RTYPE) == BFD_RELOC_CRIS_32_GOTREL \
	\|\| (RTYPE) == BFD_RELOC_CRIS_32_PLT_GOTREL \
	\|\| (RTYPE) == BFD_RELOC_CRIS_32_PLT_PCREL)

	/* Make sure we don't resolve fixups for which we want to emit dynamic
	relocations. */
	#define TC_FORCE_RELOCATION_LOCAL(FIX) \
	(GENERIC_FORCE_RELOCATION_LOCAL (FIX) \
	\|\| IS_CRIS_PIC_RELOC ((FIX)->fx_r_type))

	/* For some reloc types, don't adjust fixups by reducing to a section
	symbol. */
	#define tc_fix_adjustable(FIX) \
	((FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \
	&& (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY \
	&& (! IS_CRIS_PIC_RELOC ((FIX)->fx_r_type) \
	\|\| (FIX)->fx_r_type == BFD_RELOC_CRIS_32_GOTREL))

	/* FIXME: This should be a redundant definition, as the
	TC_FORCE_RELOCATION* definitions already told about the cases where
	we don't want the symbol value calculated. Here we seem to answer
	the "are you sure" question. It certainly has very little to do with
	whether the symbol value is passed to md_apply_fix. */
	#define MD_APPLY_SYM_VALUE(FIX) 0

	/* When we have fixups against constant expressions, we get a GAS-specific
	section symbol at no extra charge for obscure reasons in
	adjust_reloc_syms. Since ELF outputs section symbols, it gladly
	outputs this "ABS" symbol in every object. Avoid that.
	Also, don't emit undefined symbols (that aren't used in relocations).
	They pop up when tentatively parsing register names as symbols. */
	#define tc_frob_symbol(symp, punt) \
	do { \
	if ((OUTPUT_FLAVOR == bfd_target_elf_flavour \
	&& (symp) == section_symbol (absolute_section)) \
	\|\| ! S_IS_DEFINED (symp)) \
	(punt) = 1; \
	} while (0)

	#define LISTING_HEADER "GAS for CRIS"

	#if 0
	/* The testsuite does not let me define these, although they IMHO should
	be preferred over the default. */
	#define LISTING_WORD_SIZE 2
	#define LISTING_LHS_WIDTH 4
	#define LISTING_LHS_WIDTH_SECOND 4
	#endif

	/* END of declaration and definitions described in the "internals"
	document. */

	/* Do this, or we will never know what hit us when the
	broken-word-fixes break. Do _not_ use WARN_SIGNED_OVERFLOW_WORD,
	it is only for use with WORKING_DOT_WORD and warns about most stuff.
	(still in 2.9.1). */
	struct broken_word;
	extern void tc_cris_check_adjusted_broken_word (offsetT,
	struct broken_word *);
	#define TC_CHECK_ADJUSTED_BROKEN_DOT_WORD(new_offset, brokw) \
	tc_cris_check_adjusted_broken_word ((offsetT) (new_offset), brokw)

	/* We don't want any implicit alignment, so we do nothing. */
	#define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) do { } while (0)

	/* CRIS instructions, with operands and prefixes included, are a multiple
	of two bytes long. */
	#define DWARF2_LINE_MIN_INSN_LENGTH 2

	/* Make port immune to unwanted difference in te-generic.h vs. te-linux.h. */
	#define LOCAL_LABELS_DOLLAR 1

	#endif /* TC_CRIS */
	/*
	* Local variables:
	* eval: (c-set-style "gnu")
	* indent-tabs-mode: t
	* End:
	*/