From aa2289c2a3faf0f198e47943dcb29e0c16223be8 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Mon, 3 May 1999 07:29:11 +0000 Subject: Initial revision --- gas/cgen.h | 94 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) create mode 100644 gas/cgen.h (limited to 'gas/cgen.h') diff --git a/gas/cgen.h b/gas/cgen.h new file mode 100644 index 0000000000..2bc1732247 --- /dev/null +++ b/gas/cgen.h @@ -0,0 +1,94 @@ +/* GAS cgen support. + Copyright (C) 1998, 1999 Free Software Foundation, Inc. + + 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) + 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, 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. */ + +#ifndef GAS_CGEN_H +#define GAS_CGEN_H + +/* Opcode table handle. */ +extern CGEN_CPU_DESC gas_cgen_cpu_desc; + +/* Maximum number of fixups in an insn. + If you need to change this, allow target to override and do so there. */ +#define GAS_CGEN_MAX_FIXUPS 3 + +/* Struct defining result of gas_cgen_finish_insn. */ +typedef struct { + /* frag containing the insn */ + fragS * frag; + /* Address of insn in frag. */ + char * addr; + /* Number of fixups this insn has. */ + int num_fixups; + /* Array of fixups. */ + fixS * fixups[GAS_CGEN_MAX_FIXUPS]; +} finished_insnS; + +/* Callback for operand parsing. + The result is an error message or NULL for success. + The parsed value is stored in the bfd_vma *. */ +extern const char * gas_cgen_parse_operand + PARAMS ((CGEN_CPU_DESC, enum cgen_parse_operand_type, + const char **, int, int, enum cgen_parse_operand_result *, + bfd_vma *)); + +/* Call this from md_assemble to initialize the assembler callback. */ +extern void gas_cgen_init_parse PARAMS ((void)); + +extern void gas_cgen_save_fixups PARAMS ((void)); +extern void gas_cgen_restore_fixups PARAMS ((void)); +extern void gas_cgen_swap_fixups PARAMS ((void)); + +/* Add a register to the assembler's hash table. + This makes lets GAS parse registers for us. + ??? This isn't currently used, but it could be in the future. */ +extern void cgen_asm_record_register PARAMS ((char *, int)); + +/* After CGEN_SYM (assemble_insn) is done, this is called to + output the insn and record any fixups. */ +extern void gas_cgen_finish_insn PARAMS ((const CGEN_INSN *, + CGEN_INSN_BYTES_PTR, unsigned int, + int, finished_insnS *)); + +/* Record a fixup. */ +extern fixS * gas_cgen_record_fixup PARAMS ((fragS *, int, const CGEN_INSN *, + int, const CGEN_OPERAND *, int, + symbolS *, offsetT)); +extern fixS * gas_cgen_record_fixup_exp PARAMS ((fragS *, int, const CGEN_INSN *, + int, const CGEN_OPERAND *, int, + expressionS *)); + +/* md_apply_fix3 handler */ +extern int gas_cgen_md_apply_fix3 PARAMS ((fixS *, valueT *, segT)); + +/* tc_gen_reloc handler */ +extern arelent *gas_cgen_tc_gen_reloc PARAMS ((asection *, fixS *)); + +/* Target supplied routine to lookup a reloc. */ +extern bfd_reloc_code_real_type +md_cgen_lookup_reloc PARAMS ((const CGEN_INSN *, const CGEN_OPERAND *, + fixS *)); + +/* Optional target supplied routine to record a fixup for an expression. */ +extern fixS * +md_cgen_record_fixup_exp PARAMS ((fragS *, int, const CGEN_INSN *, int, + const CGEN_OPERAND *, int, + expressionS *)); + +#endif /* GAS_CGEN_H */ -- cgit v1.2.1