/* tc-cris.h -- Header file for tc-cris.c, the CRIS GAS port.
- Copyright (C) 2000 Free Software Foundation, Inc.
+ Copyright (C) 2000-2020 Free Software Foundation, Inc.
Contributed by Axis Communications AB, Lund, Sweden.
Originally written for GAS 1.38.1 by Mikael Asker.
- Updated, BFDized and GNUified by Hans-Peter Nilsson.
+ 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 2, or (at your option)
+ 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,
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. */
+ 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
#define TC_CRIS
/* Multi-target support is always on. */
-extern const char *cris_target_format PARAMS ((void));
+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 const char cris_comment_chars[];
extern const char line_comment_chars[];
extern const char line_separator_chars[];
-extern const char EXP_CHARS[];
-extern const char FLT_CHARS[];
/* This should be optional, since it is ignored as an escape (assumed to
be itself) if it is not recognized. */
#define md_operand(x)
#define md_number_to_chars number_to_chars_littleendian
-
-extern const int md_short_jump_size;
-extern const int md_long_jump_size;
-
-/* There's no use having different functions for this; the sizes are the
- same. Note that we can't #define md_short_jump_size here. */
-#define md_create_short_jump md_create_long_jump
-
extern const struct relax_type md_cris_relax_table[];
#define TC_GENERIC_RELAX_TABLE md_cris_relax_table
-#define TC_HANDLES_FX_DONE
-
-#define TC_FORCE_RELOCATION(fixp) md_cris_force_relocation (fixp)
-extern int md_cris_force_relocation PARAMS ((struct fix *));
-
-/* This is really a workaround for a bug in write.c that resolves relocs
- for weak symbols - it should be postponed to the link stage or later.
- */
-#define tc_fix_adjustable(X) \
- ((! (X)->fx_addsy || ! S_IS_WEAK((X)->fx_addsy)) \
- && (X)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \
- && (X)->fx_r_type != BFD_RELOC_VTABLE_ENTRY)
+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. */
+ 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)) \
+ if ((OUTPUT_FLAVOR == bfd_target_elf_flavour \
+ && (symp) == section_symbol (absolute_section)) \
+ || ! S_IS_DEFINED (symp)) \
(punt) = 1; \
} while (0)
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 PARAMS ((offsetT,
- 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)
+#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 */
/*
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