beginning of the current instruction. */
typedef struct sym_link
{
- struct sym_link *next;
- symbolS *symbol;
+ struct sym_link * next;
+ symbolS * symbol;
} sym_linkS;
-static sym_linkS *debug_sym_link = (sym_linkS *)0;
+static sym_linkS * debug_sym_link = (sym_linkS *) NULL;
/* Structure to hold all of the different components describing
an individual instruction. */
int num_fixups;
fixS * fixups [GAS_CGEN_MAX_FIXUPS];
int indices [MAX_OPERAND_INSTANCES];
- sym_linkS *debug_sym_link;
+ sym_linkS * debug_sym_link;
}
fr30_insn;
return BFD_RELOC_NONE;
}
-/* Record a HI16 reloc for later matching with its LO16 cousin. */
-
-static void
-fr30_record_hi16 (reloc_type, fixP, seg)
- int reloc_type;
- fixS * fixP;
- segT seg;
-{
- struct fr30_hi_fixup * hi_fixup;
-
- assert (reloc_type == BFD_RELOC_FR30_HI16_SLO
- || reloc_type == BFD_RELOC_FR30_HI16_ULO);
-
- hi_fixup = ((struct fr30_hi_fixup *)
- xmalloc (sizeof (struct fr30_hi_fixup)));
- hi_fixup->fixp = fixP;
- hi_fixup->seg = now_seg;
- hi_fixup->next = fr30_hi_fixup_list;
-
- fr30_hi_fixup_list = hi_fixup;
-}
-
-/* Called while parsing an instruction to create a fixup.
- We need to check for HI16 relocs and queue them up for later sorting. */
-
-fixS *
-fr30_cgen_record_fixup_exp (frag, where, insn, length, operand, opinfo, exp)
- fragS * frag;
- int where;
- const CGEN_INSN * insn;
- int length;
- const CGEN_OPERAND * operand;
- int opinfo;
- expressionS * exp;
-{
-#if 0
- fixS * fixP = gas_cgen_record_fixup_exp (frag, where, insn, length,
- operand, opinfo, exp);
-
- switch (CGEN_OPERAND_TYPE (operand))
- {
- case FR30_OPERAND_HI16 :
- /* If low/high/shigh/sda was used, it is recorded in `opinfo'. */
- if (fixP->tc_fix_data.opinfo == BFD_RELOC_FR30_HI16_SLO
- || fixP->tc_fix_data.opinfo == BFD_RELOC_FR30_HI16_ULO)
- fr30_record_hi16 (fixP->tc_fix_data.opinfo, fixP, now_seg);
- break;
- default : /* avoid -Wall warning */
- break;
- }
-
- return fixP;
-#else
- return 0;
-#endif
-}
/* Return BFD reloc type from opinfo field in a fixS.
It's tricky using fx_r_type in fr30_frob_file because the values
are BFD_RELOC_UNUSED + operand number. */
#define FX_OPINFO_R_TYPE(f) ((f)->tc_fix_data.opinfo)
-/* Sort any unmatched HI16 relocs so that they immediately precede
- the corresponding LO16 reloc. This is called before md_apply_fix and
- tc_gen_reloc. */
-
-void
-fr30_frob_file ()
-{
- struct fr30_hi_fixup * l;
-
- for (l = fr30_hi_fixup_list; l != NULL; l = l->next)
- {
- segment_info_type * seginfo;
- int pass;
-
- assert (FX_OPINFO_R_TYPE (l->fixp) == BFD_RELOC_FR30_HI16_SLO
- || FX_OPINFO_R_TYPE (l->fixp) == BFD_RELOC_FR30_HI16_ULO);
-
- /* Check quickly whether the next fixup happens to be a matching low. */
- if (l->fixp->fx_next != NULL
- && FX_OPINFO_R_TYPE (l->fixp->fx_next) == BFD_RELOC_FR30_LO16
- && l->fixp->fx_addsy == l->fixp->fx_next->fx_addsy
- && l->fixp->fx_offset == l->fixp->fx_next->fx_offset)
- continue;
-
- /* Look through the fixups for this segment for a matching `low'.
- When we find one, move the high/shigh just in front of it. We do
- this in two passes. In the first pass, we try to find a
- unique `low'. In the second pass, we permit multiple high's
- relocs for a single `low'. */
- seginfo = seg_info (l->seg);
- for (pass = 0; pass < 2; pass++)
- {
- fixS * f;
- fixS * prev;
-
- prev = NULL;
- for (f = seginfo->fix_root; f != NULL; f = f->fx_next)
- {
- /* Check whether this is a `low' fixup which matches l->fixp. */
- if (FX_OPINFO_R_TYPE (f) == BFD_RELOC_FR30_LO16
- && f->fx_addsy == l->fixp->fx_addsy
- && f->fx_offset == l->fixp->fx_offset
- && (pass == 1
- || prev == NULL
- || (FX_OPINFO_R_TYPE (prev) != BFD_RELOC_FR30_HI16_SLO
- && FX_OPINFO_R_TYPE (prev) != BFD_RELOC_FR30_HI16_ULO)
- || prev->fx_addsy != f->fx_addsy
- || prev->fx_offset != f->fx_offset))
- {
- fixS ** pf;
-
- /* Move l->fixp before f. */
- for (pf = &seginfo->fix_root;
- * pf != l->fixp;
- pf = & (* pf)->fx_next)
- assert (* pf != NULL);
-
- * pf = l->fixp->fx_next;
-
- l->fixp->fx_next = f;
- if (prev == NULL)
- seginfo->fix_root = l->fixp;
- else
- prev->fx_next = l->fixp;
-
- break;
- }
-
- prev = f;
- }
-
- if (f != NULL)
- break;
-
- if (pass == 1
- && warn_unmatched_high)
- as_warn_where (l->fixp->fx_file, l->fixp->fx_line,
- _("Unmatched high/shigh reloc"));
- }
- }
-}
-
/* See whether we need to force a relocation into the output file.
This is used to force out switch and PC relative relocations when
relaxing. */
return 0;
}
-void
-fr30_elf_section_change_hook ()
-{
- /* If we have reached the end of a section and we have just emitted a
- 16 bit insn, then emit a nop to make sure that the section ends on
- a 32 bit boundary. */
-
- if (prev_insn.insn || seen_relaxable_p)
- (void) fr30_fill_insn (0);
-}
-
-boolean
-fr30_fix_adjustable (fixP)
- fixS *fixP;
-{
-
- if (fixP->fx_addsy == NULL)
- return 1;
-
- /* Prevent all adjustments to global symbols. */
- if (S_IS_EXTERN (fixP->fx_addsy))
- return 0;
- if (S_IS_WEAK (fixP->fx_addsy))
- return 0;
-
- /* We need the symbol name for the VTABLE entries */
- if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT
- || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
- return 0;
-
- return 1;
-}
--- /dev/null
+/* tc-fr30.h -- Header file for tc-fr30.c.
+ Copyright (C) 1998 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. */
+
+#define TC_FR30
+
+#ifndef BFD_ASSEMBLER
+/* leading space so will compile with cc */
+ #error FR30 support requires BFD_ASSEMBLER
+#endif
+
+#define LISTING_HEADER "FR30 GAS "
+
+/* The target BFD architecture. */
+#define TARGET_ARCH bfd_arch_fr30
+
+#define TARGET_FORMAT "elf32-fr30"
+
+#define TARGET_BYTES_BIG_ENDIAN 1
+
+/* call md_pcrel_from_section, not md_pcrel_from */
+long md_pcrel_from_section PARAMS ((struct fix *, segT));
+#define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
+
+/* Permit temporary numeric labels. */
+#define LOCAL_LABELS_FB 1
+
+#define DIFF_EXPR_OK /* .-foo gets turned into PC relative relocs */
+
+/* We don't need to handle .word strangely. */
+#define WORKING_DOT_WORD
+
+#define MD_APPLY_FIX3
+#define md_apply_fix3 gas_cgen_md_apply_fix3
+
+#define TC_FRAG_INIT(fragP) \
+do { \
+ (fragP)->fr_cgen.insn = 0; \
+ (fragP)->fr_cgen.opindex = 0; \
+ (fragP)->fr_cgen.opinfo = 0; \
+} while (0);
+
+#define TC_HANDLES_FX_DONE
+
+#define tc_gen_reloc gas_cgen_tc_gen_reloc
+
+/* Call md_pcrel_from_section(), not md_pcrel_from(). */
+#define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
+extern long md_pcrel_from_section PARAMS ((struct fix *, segT));
+
+/* Record a pointer to the insn table entry for each fixup. */
+#define TC_FIX_TYPE struct { PTR insn; int opinfo; }
+#define TC_INIT_FIX_DATA(FIXP) \
+ ((FIXP)->tc_fix_data.insn = NULL, (FIXP)->tc_fix_data.opinfo = 0)
+
+/* For 8 vs 16 vs 32 bit branch selection. */
+#define TC_GENERIC_RELAX_TABLE md_relax_table
+extern const struct relax_type md_relax_table[];
+
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