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/* This file is tc-sh64.h
Copyright 2000, 2001, 2002, 2003 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_SH64
#include "config/tc-sh.h"
#include "elf/sh.h"
#include "elf32-sh64.h"
/* We need to override the tc-sh.h settings of HANDLE_ALIGN and
MAX_MEM_FOR_RS_ALIGN_CODE; we might need to put in SHmedia NOP:s, not
SHcompact NOP:s. */
#undef HANDLE_ALIGN
#define HANDLE_ALIGN(frag) sh64_handle_align (frag)
extern void sh64_handle_align (fragS *);
#undef MAX_MEM_FOR_RS_ALIGN_CODE
#define MAX_MEM_FOR_RS_ALIGN_CODE sh64_max_mem_for_rs_align_code ()
extern int sh64_max_mem_for_rs_align_code (void);
#undef LISTING_HEADER
#define LISTING_HEADER \
(target_big_endian ? \
"SuperH SHcompact/SHmedia Big Endian GAS" \
: "SuperH SHcompact/SHmedia Little Endian GAS")
/* We need to record the new frag position after an .align. */
extern void sh64_do_align (int, const char *, int, int);
#define md_do_align(n, fill, len, max, l) \
do { sh64_do_align (n, fill, len, max); goto l; } while (0)
struct sh64_segment_info_type
{
/* The type of the section is initialized when the range_start_symbol
member is non-NULL. */
symbolS *mode_start_symbol;
subsegT mode_start_subseg;
/* A stored symbol indicating location of last call of
"md_flush_pending_output". It is NULLed when we actually use it;
otherwise the contents is just filled in with segment, frag and
offset within frag. */
symbolS *last_contents_mark;
unsigned int emitted_ranges;
enum sh64_elf_cr_type contents_type;
/* This is used by the SH1-4 parts; we set it to 0 for SHmedia code and
data. */
unsigned int in_code : 1;
};
#undef TC_SEGMENT_INFO_TYPE
#define TC_SEGMENT_INFO_TYPE struct sh64_segment_info_type
#undef TARGET_FORMAT
#define TARGET_FORMAT sh64_target_format ()
extern const char *sh64_target_format (void);
#define TARGET_MACH sh64_target_mach ()
extern int sh64_target_mach (void);
#undef TC_FORCE_RELOCATION_LOCAL
#define TC_FORCE_RELOCATION_LOCAL(FIX) \
(!(FIX)->fx_pcrel \
|| (FIX)->fx_plt \
|| (FIX)->fx_r_type == BFD_RELOC_32_PLT_PCREL \
|| (FIX)->fx_r_type == BFD_RELOC_SH_PLT_LOW16 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_PLT_MEDLOW16 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_PLT_MEDHI16 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_PLT_HI16 \
|| (FIX)->fx_r_type == BFD_RELOC_32_GOT_PCREL \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOT_LOW16 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOT_MEDLOW16 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOT_MEDHI16 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOT_HI16 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOT10BY4 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOT10BY8 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOTPLT32 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOTPLT_LOW16 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOTPLT_MEDLOW16 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOTPLT_MEDHI16 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOTPLT_HI16 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOTPLT10BY4 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOTPLT10BY8 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOTPC \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOTPC_LOW16 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOTPC_MEDLOW16 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOTPC_MEDHI16 \
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOTPC_HI16 \
|| TC_FORCE_RELOCATION (FIX))
#undef TC_FORCE_RELOCATION_SUB_SAME
#define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEC) \
(! SEG_NORMAL (SEC) \
|| TC_FORCE_RELOCATION (FIX) \
|| (sh_relax && SWITCH_TABLE (FIX)) \
|| *symbol_get_tc ((FIX)->fx_addsy) != NULL)
/* Don't complain when we leave fx_subsy around. */
#undef TC_VALIDATE_FIX_SUB
#define TC_VALIDATE_FIX_SUB(FIX) \
((FIX)->fx_r_type == BFD_RELOC_32_PLT_PCREL \
|| (sh_relax && SWITCH_TABLE (FIX)) \
|| *symbol_get_tc ((FIX)->fx_addsy) != NULL)
/* Note the kludge: we want to put back C, and we also want to consume the
expression, since we have handled it ourselves. FIXME: What we really
need is a new GAS infrastructure feature: md_qualifier. */
#undef md_parse_name
#define md_parse_name(NAME, EXP, CP) \
sh64_consume_datalabel (NAME, EXP, CP, operand)
extern int sh64_consume_datalabel (const char *, expressionS *, char *,
segT (*) (expressionS *));
/* Saying "$" is the same as saying ".". */
#define DOLLAR_DOT
#undef MD_PCREL_FROM_SECTION
#define MD_PCREL_FROM_SECTION(FIX, SEC) \
shmedia_md_pcrel_from_section (FIX, SEC)
extern valueT shmedia_md_pcrel_from_section (struct fix *, segT);
/* We need to mark this symbol as a BranchTarget; setting st_other for it
and adding 1 to its value (temporarily). */
extern void sh64_frob_label (symbolS *);
#undef tc_frob_label
#define tc_frob_label(sym) \
do { sh_frob_label (); sh64_frob_label (sym); } while (0)
#define tc_symbol_new_hook(s) sh64_frob_label (s)
/* We use this to mark our "datalabel" symbol copies. The "mark" is NULL
for an ordinary symbol, and the pointer to the "ordinary" symbol for a
datalabel symbol. */
#define TC_SYMFIELD_TYPE symbolS *
#define tc_frob_symbol(symp, punt) \
do \
{ \
punt = sh64_exclude_symbol (symp); \
} \
while (0)
extern int sh64_exclude_symbol (symbolS *);
extern void sh64_adjust_symtab (void);
#define tc_adjust_symtab sh64_adjust_symtab
#undef md_flush_pending_output
#define md_flush_pending_output() sh64_flush_pending_output ()
extern void sh64_flush_pending_output (void);
/* Note that tc-sh.c has a sh_frob_section, but it's called from
tc_frob_file_before_adjust. */
#define tc_frob_section(sec) shmedia_frob_section_type (sec)
extern void shmedia_frob_section_type (asection *);
/* We need to emit fixups relative to the frag in which the instruction
resides. Safest way without calculating max fragment growth or making
it a fixed number is to provide a pointer to the opcode frag.
We also need to emit the right NOP pattern in .align frags. This is
done after the text-to-bits assembly pass, so we need to mark it with
the ISA setting at the time the .align was assembled. */
#define TC_FRAG_TYPE struct sh64_tc_frag_data
enum sh64_isa_values
{
sh64_isa_unspecified,
sh64_isa_shcompact,
sh64_isa_shmedia,
/* Special guard value used in contexts when we don't know which ISA it
is, just that it's specified (not sh64_isa_unspecified). */
sh64_isa_sh5_guard
};
struct sh64_tc_frag_data
{
fragS *opc_frag;
enum sh64_isa_values isa;
};
extern enum sh64_isa_values sh64_isa_mode;
#define TC_FRAG_INIT(FRAGP) \
do \
{ \
(FRAGP)->tc_frag_data.opc_frag = sh64_last_insn_frag; \
(FRAGP)->tc_frag_data.isa = sh64_isa_mode; \
} \
while (0)
/* This variable is set whenever we generate (or grow) a new opcode frag
in shmedia_build_Mytes. */
extern fragS *sh64_last_insn_frag;
#define md_end() shmedia_md_end ()
void shmedia_md_end (void);
/* Because we make .debug_line hold the SHmedia instruction address | 1,
we have to say we only have minimum byte-size insns. */
#undef DWARF2_LINE_MIN_INSN_LENGTH
#define DWARF2_LINE_MIN_INSN_LENGTH 1
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