2000-07-20 19:45:28 +02:00
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/* tc-cris.h -- Header file for tc-cris.c, the CRIS GAS port.
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2020-01-01 08:57:01 +01:00
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Copyright (C) 2000-2020 Free Software Foundation, Inc.
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2000-07-20 19:45:28 +02:00
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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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2001-03-23 06:27:42 +01:00
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Updates, BFDizing, GNUifying and ELF by Hans-Peter Nilsson.
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2000-07-20 19:45:28 +02:00
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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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2007-07-03 13:01:12 +02:00
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the Free Software Foundation; either version 3, or (at your option)
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2000-07-20 19:45:28 +02:00
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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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2005-05-05 11:13:19 +02:00
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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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2000-07-20 19:45:28 +02:00
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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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2005-03-25 05:10:52 +01:00
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extern const char *cris_target_format (void);
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2000-07-20 19:45:28 +02:00
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#define TARGET_FORMAT cris_target_format ()
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#define TARGET_ARCH bfd_arch_cris
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2005-03-25 05:10:52 +01:00
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extern unsigned int cris_mach (void);
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* configure.in (crisv32): Recognize. AC_DEFINE_UNQUOTED
DEFAULT_CRIS_ARCH. Handle crisv32-*-linux-gnu* like
cris-*-linux-gnu* and crisv32-*-* like cris-*-*.
* configure: Regenerate.
* config/tc-cris.c (enum cris_archs): New.
(cris_mach, cris_arch_from_string, s_cris_arch, get_sup_reg)
(cris_insn_ver_valid_for_arch): New functions.
(DEFAULT_CRIS_ARCH): New macro, default to cris_any_v0_v10.
(cris_arch): New variable.
(md_pseudo_table): New pseudo .arch.
(err_for_dangerous_mul_placement): Initialize according to
DEFAULT_CRIS_ARCH.
(STATE_COND_BRANCH): Renamed from STATE_CONDITIONAL_BRANCH.
All users changed.
(STATE_COND_BRANCH_V32, STATE_COND_BRANCH_COMMON)
(STATE_ABS_BRANCH_V32, STATE_LAPC, BRANCH_BF_V32, BRANCH_BB_V32)
(BRANCH_WF_V32, BRANCH_WB_V32): New.
(BRANCH_BF, BRANCH_BB, BRANCH_WF, BRANCH_WB): Don't undef after
use in md_cris_relax_table.
(md_cris_relax_table): Add entries for STATE_COND_BRANCH_V32,
STATE_COND_BRANCH_COMMON, STATE_ABS_BRANCH_V32, STATE_LAPC.
Update and improve head comment.
(OPTION_PIC): Define in terms of previous option, OPTION_US.
(OPTION_MULBUG_ABORT_ON, OPTION_MULBUG_ABORT_OFF): Similar.
(OPTION_ARCH): New.
(md_longopts): New option --march=...
(cris_any_v0_v10_long_jump_size, crisv32_long_jump_size): New
macros.
(md_long_jump_size): Initialize in terms of DEFAULT_CRIS_ARCH.
(HANDLE_RELAXABLE): New macro.
(md_estimate_size_before_relax): Use HANDLE_RELAXABLE for common
cases. Check for weak symbols and assume not relaxable. Handle
STATE_COND_BRANCH_V32, STATE_COND_BRANCH_COMMON,
STATE_ABS_BRANCH_V32, STATE_LAPC. Use new variable symbolP, not
fragP->fr_symbol.
(md_convert_frag): Handle STATE_COND_BRANCH_V32,
STATE_COND_BRANCH_COMMON, STATE_ABS_BRANCH_V32, STATE_LAPC.
(cris_create_short_jump): Adjust for CRISv32.
(md_create_long_jump): Ditto. Emit error for common_v10_v32.
(md_begin): Define symbols "..asm.arch.cris.v32",
"..asm.arch.cris.v10", "..asm.arch.cris.common_v10_v32" and
"..asm.arch.cris.any_v0_v10". Use cris_insn_ver_valid_for_arch
when entering opcode table entry points.
(md_assemble): Adjust branch handling for CRISv32. Handle LAPC
relaxation. In fix_new_exp call for main insn, pass 1 for pcrel
parameter for 8, 16 and 32-bit pc-relative insns and LAPC.
(cris_process_instruction): Initialize out_insnp->insn_type to
CRIS_INSN_NONE, not CRIS_INSN_NORMAL.
<case ']', '[', 'A', 'd', 'Q', 'N', 'n', 'Y', 'U', 'u', 'T'>: New
cases.
<case 'm'>: Check that modified_char == '.'.
<invalid operands>: Consume the rest of the line.
When operands don't match, skip over subsequent insns with
non-matching version specifier but same mnemonic.
<immediate constant, case SIZE_SPEC_REG>: Immediate operands for
special registers in CRISv32 are always 32 bit long.
<immediate constant, case SIZE_FIELD_SIGNED, SIZE_FIELD_UNSIGNED>:
New cases.
(get_gen_reg): Only recognize "PC" when followed by "+]" for v32
and compatible. Recognize "ACR" for v32, unless followed by "+".
(get_spec_reg): Consider cris_arch when looking up register.
(get_autoinc_prefix_or_indir_op): Don't recognize assignment for
v32 or compatible.
(get_3op_or_dip_prefix_op): Check for ']' after seeing '[rN+'.
(cris_get_expression): Restore input_line_pointer if failing "early".
(get_flags): Consider cris_arch and recognize flags accordingly.
(branch_disp): Adjust for CRISv32.
(gen_cond_branch_32): Similar. Emit error for common_v10_v32.
(cris_number_to_imm): Use as_bad_where, not as_bad. Remove
related FIXME. Don't insist on BFD_RELOC_32_PCREL fixup to be
resolved. Don't enter zeros in object file for
BFD_RELOC_32_PCREL.
<case BFD_RELOC_CRIS_LAPCQ_OFFSET, BFD_RELOC_CRIS_SIGNED_16>
<case BFD_RELOC_CRIS_SIGNED_8>: New case.
(md_parse_option): Break out "return 1".
<OPTION_ARCH> New case.
(tc_gen_reloc): <case BFD_RELOC_CRIS_LAPCQ_OFFSET>
<case BFD_RELOC_CRIS_SIGNED_16, BFD_RELOC_CRIS_SIGNED_8>
<case BFD_RELOC_CRIS_UNSIGNED_8, BFD_RELOC_CRIS_UNSIGNED_16>
<case BFD_RELOC_32_PCREL>: New cases.
Addends for non-zero fx_pcrel are too in fx_offset.
(md_show_usage): Show --march=<arch>.
(md_apply_fix3): Adjust val for BFD_RELOC_CRIS_LAPCQ_OFFSET.
(md_pcrel_from): BFD_RELOC_CRIS_LAPCQ_OFFSET is PC-relative too.
(s_syntax) <struct syntaxes>: Properly constify member operand.
* config/tc-cris.h (TARGET_MACH): Define.
(cris_mach): Declare.
* doc/as.texinfo (Overview) <CRIS>: Add --march=...
* doc/c-cris.texi (CRIS-Symbols): New node for built-in symbols.
(CRIS-Opts): Document --march=...
(CRIS-Pseudos): Document .arch.
2004-11-04 16:00:37 +01:00
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#define TARGET_MACH (cris_mach ())
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2000-07-20 19:45:28 +02:00
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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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2005-03-25 05:10:52 +01:00
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long cris_relax_frag (segT, fragS *, long);
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2002-10-23 01:45:40 +02:00
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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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2002-09-05 02:01:18 +02:00
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#define TC_FORCE_RELOCATION(FIX) md_cris_force_relocation (FIX)
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2005-03-25 05:10:52 +01:00
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extern int md_cris_force_relocation (struct fix *);
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2000-07-20 19:45:28 +02:00
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2002-09-05 02:01:18 +02:00
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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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2007-02-01 15:12:20 +01:00
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relocations. */
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2002-09-05 02:01:18 +02:00
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#define TC_FORCE_RELOCATION_LOCAL(FIX) \
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2017-05-16 01:13:24 +02:00
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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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2002-09-05 02:01:18 +02:00
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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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2000-07-20 19:45:28 +02:00
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2005-07-08 05:54:30 +02:00
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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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2000-07-20 19:45:28 +02:00
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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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2001-03-23 06:27:42 +01:00
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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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2000-07-20 19:45:28 +02:00
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#define tc_frob_symbol(symp, punt) \
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do { \
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2001-03-23 06:27:42 +01:00
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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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2000-07-20 19:45:28 +02:00
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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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2005-03-25 05:10:52 +01:00
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extern void tc_cris_check_adjusted_broken_word (offsetT,
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struct broken_word *);
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2000-07-20 19:45:28 +02:00
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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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2005-02-17 14:46:05 +01:00
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#define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) do { } while (0)
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2000-07-20 19:45:28 +02:00
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2000-11-28 16:39:15 +01:00
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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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2003-06-16 02:38:58 +02:00
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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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2000-07-20 19:45:28 +02:00
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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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