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authorRichard Henderson <rth@redhat.com>1999-05-03 07:29:11 +0000
committerRichard Henderson <rth@redhat.com>1999-05-03 07:29:11 +0000
commit252b5132c753830d5fd56823373aed85f2a0db63 (patch)
tree1af963bfd8d3e55167b81def4207f175eaff3a56 /gas/cgen.h
downloadbinutils-gdb-252b5132c753830d5fd56823373aed85f2a0db63.tar.gz
19990502 sourceware importbinu_ss_19990502
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+/* 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 */