projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 252b5132 RH |
1 | /* GAS cgen support. |
| 2 | Copyright (C) 1998, 1999 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of GAS, the GNU Assembler. | |
| 5 | ||
| 6 | GAS is free software; you can redistribute it and/or modify | |
| 7 | it under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 2, or (at your option) | |
| 9 | any later version. | |
| 10 | ||
| 11 | GAS is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | GNU General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU General Public License | |
| 17 | along with GAS; see the file COPYING. If not, write to the Free | |
| 18 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
| 19 | 02111-1307, USA. */ | |
| 20 | ||
| 21 | #ifndef GAS_CGEN_H | |
| 22 | #define GAS_CGEN_H | |
| 23 | ||
| 24 | /* Opcode table handle. */ | |
| 25 | extern CGEN_CPU_DESC gas_cgen_cpu_desc; | |
| 26 | ||
| 27 | /* Maximum number of fixups in an insn. | |
| 28 | If you need to change this, allow target to override and do so there. */ | |
| 29 | #define GAS_CGEN_MAX_FIXUPS 3 | |
| 30 | ||
| 31 | /* Struct defining result of gas_cgen_finish_insn. */ | |
| 32 | typedef struct { | |
| 33 | /* frag containing the insn */ | |
| 34 | fragS * frag; | |
| 35 | /* Address of insn in frag. */ | |
| 36 | char * addr; | |
| 37 | /* Number of fixups this insn has. */ | |
| 38 | int num_fixups; | |
| 39 | /* Array of fixups. */ | |
| 40 | fixS * fixups[GAS_CGEN_MAX_FIXUPS]; | |
| 41 | } finished_insnS; | |
| 42 | ||
| 43 | /* Callback for operand parsing. | |
| 44 | The result is an error message or NULL for success. | |
| 45 | The parsed value is stored in the bfd_vma *. */ | |
| 46 | extern const char * gas_cgen_parse_operand | |
| 47 | PARAMS ((CGEN_CPU_DESC, enum cgen_parse_operand_type, | |
| 48 | const char **, int, int, enum cgen_parse_operand_result *, | |
| 49 | bfd_vma *)); | |
| 50 | ||
| 51 | /* Call this from md_assemble to initialize the assembler callback. */ | |
| 52 | extern void gas_cgen_init_parse PARAMS ((void)); | |
| 53 | ||
| 54 | extern void gas_cgen_save_fixups PARAMS ((void)); | |
| 55 | extern void gas_cgen_restore_fixups PARAMS ((void)); | |
| 56 | extern void gas_cgen_swap_fixups PARAMS ((void)); | |
| 57 | ||
| 58 | /* Add a register to the assembler's hash table. | |
| 59 | This makes lets GAS parse registers for us. | |
| 60 | ??? This isn't currently used, but it could be in the future. */ | |
| 61 | extern void cgen_asm_record_register PARAMS ((char *, int)); | |
| 62 | ||
| 63 | /* After CGEN_SYM (assemble_insn) is done, this is called to | |
| 64 | output the insn and record any fixups. */ | |
| 65 | extern void gas_cgen_finish_insn PARAMS ((const CGEN_INSN *, | |
| 66 | CGEN_INSN_BYTES_PTR, unsigned int, | |
| 67 | int, finished_insnS *)); | |
| 68 | ||
| 69 | /* Record a fixup. */ | |
| 70 | extern fixS * gas_cgen_record_fixup PARAMS ((fragS *, int, const CGEN_INSN *, | |
| 71 | int, const CGEN_OPERAND *, int, | |
| 72 | symbolS *, offsetT)); | |
| 73 | extern fixS * gas_cgen_record_fixup_exp PARAMS ((fragS *, int, const CGEN_INSN *, | |
| 74 | int, const CGEN_OPERAND *, int, | |
| 75 | expressionS *)); | |
| 76 | ||
| 77 | /* md_apply_fix3 handler */ | |
| 78 | extern int gas_cgen_md_apply_fix3 PARAMS ((fixS *, valueT *, segT)); | |
| 79 | ||
| 80 | /* tc_gen_reloc handler */ | |
| 81 | extern arelent *gas_cgen_tc_gen_reloc PARAMS ((asection *, fixS *)); | |
| 82 | ||
| 83 | /* Target supplied routine to lookup a reloc. */ | |
| 84 | extern bfd_reloc_code_real_type | |
| 85 | md_cgen_lookup_reloc PARAMS ((const CGEN_INSN *, const CGEN_OPERAND *, | |
| 86 | fixS *)); | |
| 87 | ||
| 88 | /* Optional target supplied routine to record a fixup for an expression. */ | |
| 89 | extern fixS * | |
| 90 | md_cgen_record_fixup_exp PARAMS ((fragS *, int, const CGEN_INSN *, int, | |
| 91 | const CGEN_OPERAND *, int, | |
| 92 | expressionS *)); | |
| 93 | ||
| 94 | #endif /* GAS_CGEN_H */ |