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Diffstat (limited to 'contrib/binutils/gas/cgen.h')
-rw-r--r-- | contrib/binutils/gas/cgen.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/contrib/binutils/gas/cgen.h b/contrib/binutils/gas/cgen.h new file mode 100644 index 0000000..8cf72af --- /dev/null +++ b/contrib/binutils/gas/cgen.h @@ -0,0 +1,102 @@ +/* GAS cgen support. + Copyright 1998, 1999, 2000 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. */ +#ifndef GAS_CGEN_MAX_FIXUPS +#define GAS_CGEN_MAX_FIXUPS 3 +#endif + +/* 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 + (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 (void); + +/* Routines and macros for saving fixup chains. */ +extern void gas_cgen_save_fixups (int); +extern void gas_cgen_restore_fixups (int); +extern void gas_cgen_swap_fixups (int); +extern void gas_cgen_initialize_saved_fixups_array (void); +#define MAX_SAVED_FIXUP_CHAINS 50 + +/* 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 (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 (const CGEN_INSN *, + CGEN_INSN_BYTES_PTR, unsigned int, + int, finished_insnS *); + +/* Record a fixup. */ +extern fixS * gas_cgen_record_fixup (fragS *, int, const CGEN_INSN *, + int, const CGEN_OPERAND *, int, + symbolS *, offsetT); +extern fixS * gas_cgen_record_fixup_exp (fragS *, int, const CGEN_INSN *, + int, const CGEN_OPERAND *, int, + expressionS *); + +/* md_apply_fix3 handler */ +extern void gas_cgen_md_apply_fix3 (fixS *, valueT *, segT); + +/* tc_gen_reloc handler */ +extern arelent *gas_cgen_tc_gen_reloc (asection *, fixS *); + +/* Target supplied routine to lookup a reloc. */ +extern bfd_reloc_code_real_type +md_cgen_lookup_reloc (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 (fragS *, int, const CGEN_INSN *, int, + const CGEN_OPERAND *, int, expressionS *); + +extern void gas_cgen_md_operand (expressionS *); + +/* Perform any cgen specific initialisation for gas. */ +extern void gas_cgen_begin (void); + +#endif /* GAS_CGEN_H */ |