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khays |
/* GAS cgen support.
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Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2007
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Free Software Foundation, Inc.
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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, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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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 Free
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Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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#ifndef GAS_CGEN_H
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#define GAS_CGEN_H
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/* Opcode table handle. */
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extern CGEN_CPU_DESC gas_cgen_cpu_desc;
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/* Maximum number of fixups in an insn.
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If you need to change this, allow target to override and do so there. */
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#ifndef GAS_CGEN_MAX_FIXUPS
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#define GAS_CGEN_MAX_FIXUPS 3
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#endif
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/* Struct defining result of gas_cgen_finish_insn. */
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typedef struct {
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/* frag containing the insn */
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fragS * frag;
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/* Address of insn in frag. */
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char * addr;
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/* Number of fixups this insn has. */
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int num_fixups;
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/* Array of fixups. */
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fixS * fixups[GAS_CGEN_MAX_FIXUPS];
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} finished_insnS;
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/* Callback for operand parsing.
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The result is an error message or NULL for success.
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The parsed value is stored in the bfd_vma *. */
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extern const char * gas_cgen_parse_operand
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(CGEN_CPU_DESC, enum cgen_parse_operand_type,
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const char **, int, int, enum cgen_parse_operand_result *,
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bfd_vma *);
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/* Call this from md_assemble to initialize the assembler callback. */
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extern void gas_cgen_init_parse (void);
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/* Routines and macros for saving fixup chains. */
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extern void gas_cgen_save_fixups (int);
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extern void gas_cgen_restore_fixups (int);
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extern void gas_cgen_swap_fixups (int);
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extern void gas_cgen_initialize_saved_fixups_array (void);
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#define MAX_SAVED_FIXUP_CHAINS 50
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/* Add a register to the assembler's hash table.
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This makes lets GAS parse registers for us.
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??? This isn't currently used, but it could be in the future. */
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extern void cgen_asm_record_register (char *, int);
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/* After CGEN_SYM (assemble_insn) is done, this is called to
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output the insn and record any fixups. */
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extern void gas_cgen_finish_insn (const CGEN_INSN *,
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CGEN_INSN_BYTES_PTR, unsigned int,
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int, finished_insnS *);
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/* Record a fixup. */
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extern fixS * gas_cgen_record_fixup (fragS *, int, const CGEN_INSN *,
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int, const CGEN_OPERAND *, int,
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symbolS *, offsetT);
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extern fixS * gas_cgen_record_fixup_exp (fragS *, int, const CGEN_INSN *,
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int, const CGEN_OPERAND *, int,
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expressionS *);
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/* md_apply_fix handler */
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extern void gas_cgen_md_apply_fix (fixS *, valueT *, segT);
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/* tc_gen_reloc handler */
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extern arelent *gas_cgen_tc_gen_reloc (asection *, fixS *);
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/* Target supplied routine to lookup a reloc. */
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extern bfd_reloc_code_real_type
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md_cgen_lookup_reloc (const CGEN_INSN *, const CGEN_OPERAND *, fixS *);
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/* Optional target supplied routine to record a fixup for an expression. */
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extern fixS *
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md_cgen_record_fixup_exp (fragS *, int, const CGEN_INSN *, int,
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const CGEN_OPERAND *, int, expressionS *);
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extern void gas_cgen_md_operand (expressionS *);
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/* Perform any cgen specific initialisation for gas. */
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extern void gas_cgen_begin (void);
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#endif /* GAS_CGEN_H */
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