Support for Toshiba MeP and for complex relocations.

1 files changed, 119 insertions, 0 deletions

diff --git a/gas/config/tc-mep.h b/gas/config/tc-mep.h
new file mode 100644
index 0000000..1d48bd4
--- /dev/null
+++ b/gas/config/tc-mep.h
@@ -0,0 +1,119 @@
+/* tc-mep.h -- Header file for tc-mep.c.
+   Copyright (C) 2001, 2002, 2005 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, 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA. */
+
+#define TC_MEP
+
+/* Support computed relocations.  */
+#define OBJ_COMPLEX_RELC
+
+/* Support many operands per instruction.  */
+#define GAS_CGEN_MAX_FIXUPS 10
+
+#define LISTING_HEADER "MEP GAS "
+
+/* The target BFD architecture.  */
+#define TARGET_ARCH bfd_arch_mep
+
+#define TARGET_FORMAT (target_big_endian ? "elf32-mep" : "elf32-mep-little")
+
+/* This is the default.  */
+#define TARGET_BYTES_BIG_ENDIAN 1
+
+/* Permit temporary numeric labels. */
+#define LOCAL_LABELS_FB 1
+
+/* .-foo gets turned into PC relative relocs.  */
+#define DIFF_EXPR_OK
+
+/* We don't need to handle .word strangely.  */
+#define WORKING_DOT_WORD
+
+/* Values passed to md_apply_fix don't include the symbol value.  */
+#define MD_APPLY_SYM_VALUE(FIX) 0
+
+#define MD_APPLY_FIX
+#define md_apply_fix mep_apply_fix
+extern void mep_apply_fix (struct fix *, valueT *, segT);
+
+/* 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 (struct fix *, segT);
+
+#define tc_frob_file() mep_frob_file ()
+extern void mep_frob_file (void);
+
+#define tc_fix_adjustable(fixP) mep_fix_adjustable (fixP)
+extern bfd_boolean mep_fix_adjustable (struct fix *);
+
+/* After creating a fixup for an instruction operand, we need
+   to check for HI16 relocs and queue them up for later sorting.  */
+#define md_cgen_record_fixup_exp  mep_cgen_record_fixup_exp
+
+/* When relaxing, we need to emit various relocs we otherwise wouldn't.  */
+#define TC_FORCE_RELOCATION(fix) mep_force_relocation (fix)
+extern int mep_force_relocation (struct fix *);
+
+#define tc_gen_reloc gas_cgen_tc_gen_reloc
+
+extern void gas_cgen_md_operand (expressionS *);
+#define md_operand(x) gas_cgen_md_operand (x)
+
+#define md_flush_pending_output() mep_flush_pending_output()
+extern int mep_flush_pending_output(void);
+
+extern const struct relax_type md_relax_table[];
+#define TC_GENERIC_RELAX_TABLE md_relax_table
+
+/* Account for inserting a jmp after the insn.  */
+#define TC_CGEN_MAX_RELAX(insn, len) ((len) + 4)
+
+extern void mep_prepare_relax_scan (fragS *, offsetT *, relax_substateT);
+#define md_prepare_relax_scan(FRAGP, ADDR, AIM, STATE, TYPE) \
+	mep_prepare_relax_scan (FRAGP, &AIM, STATE)
+
+#define skip_whitespace(str) while (*(str) == ' ') ++(str)
+
+/* Support for core/vliw mode switching.  */
+#define CORE 0
+#define VLIW 1
+#define MAX_PARALLEL_INSNS 56 /* From email from Toshiba.  */
+#define VTEXT_SECTION_NAME ".vtext"
+
+/* Needed to process pending instructions when a label is encountered.  */
+#define TC_START_LABEL(ch, ptr)    ((ch == ':') && mep_flush_pending_output ())
+
+#define tc_unrecognized_line(c) mep_unrecognized_line (c)
+extern int mep_unrecognized_line (int);
+#define md_cleanup mep_cleanup
+extern void mep_cleanup (void);
+
+#define md_elf_section_letter		mep_elf_section_letter
+extern int mep_elf_section_letter (int, char **);
+#define md_elf_section_flags		mep_elf_section_flags
+extern flagword mep_elf_section_flags  (flagword, int, int);
+
+#define ELF_TC_SPECIAL_SECTIONS \
+  { VTEXT_SECTION_NAME, SHT_PROGBITS, SHF_ALLOC|SHF_EXECINSTR|SHF_MEP_VLIW },
+
+/* The values of the following enum are for use with parinsnum, which 
+   is a variable in md_assemble that keeps track of whether or not the
+   next instruction is expected to be the first or second instrucion in
+   a parallelization group.  */
+typedef enum exp_par_insn_{FIRST, SECOND} EXP_PAR_INSN;