-/* tc-sh.c -- Assemble code for the Hitachi Super-H
+/* tc-sh.c -- Assemble code for the Renesas / SuperH SH
Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
Free Software Foundation, Inc.
const char line_separator_chars[] = ";";
const char line_comment_chars[] = "!#";
-static void s_uses PARAMS ((int));
-
-static void sh_count_relocs PARAMS ((bfd *, segT, PTR));
-static void sh_frob_section PARAMS ((bfd *, segT, PTR));
-
-static void s_uacons PARAMS ((int));
-static sh_opcode_info *find_cooked_opcode PARAMS ((char **));
-static unsigned int assemble_ppi PARAMS ((char *, sh_opcode_info *));
-static void little PARAMS ((int));
-static void big PARAMS ((int));
-static int parse_reg PARAMS ((char *, int *, int *));
-static char *parse_exp PARAMS ((char *, sh_operand_info *));
-static char *parse_at PARAMS ((char *, sh_operand_info *));
-static void get_operand PARAMS ((char **, sh_operand_info *));
-static char *get_operands
- PARAMS ((sh_opcode_info *, char *, sh_operand_info *));
-static sh_opcode_info *get_specific
- PARAMS ((sh_opcode_info *, sh_operand_info *));
-static void insert PARAMS ((char *, int, int, sh_operand_info *));
-static void build_relax PARAMS ((sh_opcode_info *, sh_operand_info *));
-static char *insert_loop_bounds PARAMS ((char *, sh_operand_info *));
-static unsigned int build_Mytes
- PARAMS ((sh_opcode_info *, sh_operand_info *));
-static bfd_boolean sh_local_pcrel PARAMS ((fixS *fix));
+static void s_uses (int);
+static void s_uacons (int);
#ifdef OBJ_ELF
-static void sh_elf_cons PARAMS ((int));
-
-inline static int sh_PIC_related_p PARAMS ((symbolS *));
-static int sh_check_fixup PARAMS ((expressionS *, bfd_reloc_code_real_type *));
-inline static char *sh_end_of_match PARAMS ((char *, char *));
+static void sh_elf_cons (int);
symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE_" */
#endif
static void
-big (ignore)
- int ignore ATTRIBUTE_UNUSED;
+big (int ignore ATTRIBUTE_UNUSED)
{
if (! target_big_endian)
as_bad (_("directive .big encountered when option -big required"));
}
static void
-little (ignore)
- int ignore ATTRIBUTE_UNUSED;
+little (int ignore ATTRIBUTE_UNUSED)
{
if (target_big_endian)
as_bad (_("directive .little encountered when option -little required"));
{"2byte", s_uacons, 2},
{"4byte", s_uacons, 4},
{"8byte", s_uacons, 8},
-#ifdef BFD_ASSEMBLER
- {"file", (void (*) PARAMS ((int))) dwarf2_directive_file, 0 },
- {"loc", dwarf2_directive_loc, 0 },
-#endif
#ifdef HAVE_SH64
{"mode", s_sh64_mode, 0 },
static int preset_target_arch;
/* The bit mask of architectures that could
- accomodate the insns seen so far. */
+ accommodate the insns seen so far. */
static int valid_arch;
const char EXP_CHARS[] = "eE";
#define ENCODE_RELAX(what,length) (((what) << 4) + (length))
#define GET_WHAT(x) ((x>>4))
-/* These are the three types of relaxable instrction. */
+/* These are the three types of relaxable instruction. */
/* These are the types of relaxable instructions; except for END which is
a marker. */
#define COND_JUMP 1
/* Determinet whether the symbol needs any kind of PIC relocation. */
inline static int
-sh_PIC_related_p (sym)
- symbolS *sym;
+sh_PIC_related_p (symbolS *sym)
{
expressionS *exp;
expression, that may be rearranged. */
static int
-sh_check_fixup (main_exp, r_type_p)
- expressionS *main_exp;
- bfd_reloc_code_real_type *r_type_p;
+sh_check_fixup (expressionS *main_exp, bfd_reloc_code_real_type *r_type_p)
{
expressionS *exp = main_exp;
/* Add expression EXP of SIZE bytes to offset OFF of fragment FRAG. */
void
-sh_cons_fix_new (frag, off, size, exp)
- fragS *frag;
- int off, size;
- expressionS *exp;
+sh_cons_fix_new (fragS *frag, int off, int size, expressionS *exp)
{
bfd_reloc_code_real_type r_type = BFD_RELOC_UNUSED;
suffixes such as @GOT, @GOTOFF and @PLT, that generate
machine-specific relocation types. So we must define it here. */
/* Clobbers input_line_pointer, checks end-of-line. */
+/* NBYTES 1=.byte, 2=.word, 4=.long */
static void
-sh_elf_cons (nbytes)
- register int nbytes; /* 1=.byte, 2=.word, 4=.long */
+sh_elf_cons (register int nbytes)
{
expressionS exp;
return;
}
+#ifdef md_cons_align
+ md_cons_align (nbytes);
+#endif
+
do
{
expression (&exp);
set up all the tables, etc that the MD part of the assembler needs. */
void
-md_begin ()
+md_begin (void)
{
const sh_opcode_info *opcode;
char *prev_name = "";
/* Try to parse a reg name. Return the number of chars consumed. */
static int
-parse_reg (src, mode, reg)
- char *src;
- int *mode;
- int *reg;
+parse_reg (char *src, int *mode, int *reg)
{
char l0 = TOLOWER (src[0]);
char l1 = l0 ? TOLOWER (src[1]) : 0;
}
static char *
-parse_exp (s, op)
- char *s;
- sh_operand_info *op;
+parse_exp (char *s, sh_operand_info *op)
{
char *save;
char *new;
*/
static char *
-parse_at (src, op)
- char *src;
- sh_operand_info *op;
+parse_at (char *src, sh_operand_info *op)
{
int len;
int mode;
no matter if expr is a constant, or a more complex
expression, e.g. sym-. or sym1-sym2.
However, we also used to accept @(sym,pc)
- as adressing sym, i.e. meaning the same as plain sym.
+ as addressing sym, i.e. meaning the same as plain sym.
Some existing code does use the @(sym,pc) syntax, so
we give it the old semantics for now, but warn about
its use, so that users have some time to fix their code.
}
static void
-get_operand (ptr, op)
- char **ptr;
- sh_operand_info *op;
+get_operand (char **ptr, sh_operand_info *op)
{
char *src = *ptr;
int mode = -1;
}
static char *
-get_operands (info, args, operand)
- sh_opcode_info *info;
- char *args;
- sh_operand_info *operand;
+get_operands (sh_opcode_info *info, char *args, sh_operand_info *operand)
{
char *ptr = args;
if (info->arg[0])
provided. */
static sh_opcode_info *
-get_specific (opcode, operands)
- sh_opcode_info *opcode;
- sh_operand_info *operands;
+get_specific (sh_opcode_info *opcode, sh_operand_info *operands)
{
sh_opcode_info *this_try = opcode;
char *name = opcode->name;
}
static void
-insert (where, how, pcrel, op)
- char *where;
- int how;
- int pcrel;
- sh_operand_info *op;
+insert (char *where, int how, int pcrel, sh_operand_info *op)
{
fix_new_exp (frag_now,
where - frag_now->fr_literal,
}
static void
-build_relax (opcode, op)
- sh_opcode_info *opcode;
- sh_operand_info *op;
+build_relax (sh_opcode_info *opcode, sh_operand_info *op)
{
int high_byte = target_big_endian ? 0 : 1;
char *p;
/* Insert ldrs & ldre with fancy relocations that relaxation can recognize. */
static char *
-insert_loop_bounds (output, operand)
- char *output;
- sh_operand_info *operand;
+insert_loop_bounds (char *output, sh_operand_info *operand)
{
char *name;
symbolS *end_sym;
/* Now we know what sort of opcodes it is, let's build the bytes. */
static unsigned int
-build_Mytes (opcode, operand)
- sh_opcode_info *opcode;
- sh_operand_info *operand;
+build_Mytes (sh_opcode_info *opcode, sh_operand_info *operand)
{
int index;
char nbuf[4];
*STR_P to the first character after the last one read. */
static sh_opcode_info *
-find_cooked_opcode (str_p)
- char **str_p;
+find_cooked_opcode (char **str_p)
{
char *str = *str_p;
unsigned char *op_start;
#define DDT_BASE 0xf000 /* Base value for double data transfer insns */
static unsigned int
-assemble_ppi (op_end, opcode)
- char *op_end;
- sh_opcode_info *opcode;
+assemble_ppi (char *op_end, sh_opcode_info *opcode)
{
int movx = 0;
int movy = 0;
the frags/bytes it assembles to. */
void
-md_assemble (str)
- char *str;
+md_assemble (char *str)
{
unsigned char *op_end;
sh_operand_info operand[3];
if (opcode->arg[0] == A_BDISP12
|| opcode->arg[0] == A_BDISP8)
{
+ /* Since we skip get_specific here, we have to check & update
+ valid_arch now. */
+ if (valid_arch & opcode->arch)
+ valid_arch &= opcode->arch;
+ else
+ as_bad (_("Delayed branches not available on SH1"));
parse_exp (op_end + 1, &operand[0]);
build_relax (opcode, &operand[0]);
}
emits a BFD_RELOC_SH_LABEL reloc if necessary. */
void
-sh_frob_label ()
+sh_frob_label (void)
{
static fragS *last_label_frag;
static int last_label_offset;
data. It emits a BFD_RELOC_SH_DATA reloc if necessary. */
void
-sh_flush_pending_output ()
+sh_flush_pending_output (void)
{
if (sh_relax
&& seg_info (now_seg)->tc_segment_info_data.in_code)
}
symbolS *
-md_undefined_symbol (name)
- char *name ATTRIBUTE_UNUSED;
+md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
{
return 0;
}
#ifndef BFD_ASSEMBLER
void
-tc_crawl_symbol_chain (headers)
- object_headers *headers ATTRIBUTE_UNUSED;
+tc_crawl_symbol_chain (object_headers *headers ATTRIBUTE_UNUSED)
{
printf (_("call to tc_crawl_symbol_chain \n"));
}
void
-tc_headers_hook (headers)
- object_headers *headers ATTRIBUTE_UNUSED;
+tc_headers_hook (object_headers *headers ATTRIBUTE_UNUSED)
{
printf (_("call to tc_headers_hook \n"));
}
returned, or NULL on OK. */
char *
-md_atof (type, litP, sizeP)
- int type;
- char *litP;
- int *sizeP;
+md_atof (int type, char *litP, int *sizeP)
{
int prec;
LITTLENUM_TYPE words[4];
special reloc for the linker. */
static void
-s_uses (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_uses (int ignore ATTRIBUTE_UNUSED)
{
expressionS ex;
size_t md_longopts_size = sizeof (md_longopts);
int
-md_parse_option (c, arg)
- int c;
- char *arg ATTRIBUTE_UNUSED;
+md_parse_option (int c, char *arg ATTRIBUTE_UNUSED)
{
switch (c)
{
}
void
-md_show_usage (stream)
- FILE *stream;
+md_show_usage (FILE *stream)
{
fprintf (stream, _("\
SH options:\n\
bfd_map_over_sections. */
static void
-sh_count_relocs (abfd, sec, data)
- bfd *abfd ATTRIBUTE_UNUSED;
- segT sec;
- PTR data;
+sh_count_relocs (bfd *abfd ATTRIBUTE_UNUSED, segT sec, void *data)
{
struct sh_count_relocs *info = (struct sh_count_relocs *) data;
segment_info_type *seginfo;
BFD_ASSEMBLER, this is called via bfd_map_over_sections. */
static void
-sh_frob_section (abfd, sec, ignore)
- bfd *abfd ATTRIBUTE_UNUSED;
- segT sec;
- PTR ignore ATTRIBUTE_UNUSED;
+sh_frob_section (bfd *abfd ATTRIBUTE_UNUSED, segT sec,
+ void *ignore ATTRIBUTE_UNUSED)
{
segment_info_type *seginfo;
fixS *fix;
info.sym = sym;
info.count = 0;
#ifdef BFD_ASSEMBLER
- bfd_map_over_sections (stdoutput, sh_count_relocs, (PTR) &info);
+ bfd_map_over_sections (stdoutput, sh_count_relocs, &info);
#else
{
int iscan;
for (iscan = SEG_E0; iscan < SEG_UNKNOWN; iscan++)
- sh_count_relocs ((bfd *) NULL, iscan, (PTR) &info);
+ sh_count_relocs ((bfd *) NULL, iscan, &info);
}
#endif
the stored function address entirely. */
void
-sh_frob_file ()
+sh_frob_file (void)
{
#ifdef HAVE_SH64
shmedia_frob_file_before_adjust ();
return;
#ifdef BFD_ASSEMBLER
- bfd_map_over_sections (stdoutput, sh_frob_section, (PTR) NULL);
+ bfd_map_over_sections (stdoutput, sh_frob_section, NULL);
#else
{
int iseg;
for (iseg = SEG_E0; iseg < SEG_UNKNOWN; iseg++)
- sh_frob_section ((bfd *) NULL, iseg, (PTR) NULL);
+ sh_frob_section ((bfd *) NULL, iseg, NULL);
}
#endif
}
create relocs so that md_apply_fix3 will fill in the correct values. */
void
-md_convert_frag (headers, seg, fragP)
#ifdef BFD_ASSEMBLER
- bfd *headers ATTRIBUTE_UNUSED;
+md_convert_frag (bfd *headers ATTRIBUTE_UNUSED, segT seg, fragS *fragP)
#else
- object_headers *headers ATTRIBUTE_UNUSED;
+md_convert_frag (object_headers *headers ATTRIBUTE_UNUSED, segT seg,
+ fragS *fragP)
#endif
- segT seg;
- fragS *fragP;
{
int donerelax = 0;
}
valueT
-md_section_align (seg, size)
- segT seg ATTRIBUTE_UNUSED;
- valueT size;
+md_section_align (segT seg ATTRIBUTE_UNUSED, valueT size)
{
#ifdef BFD_ASSEMBLER
#ifdef OBJ_ELF
}
/* This static variable is set by s_uacons to tell sh_cons_align that
- the expession does not need to be aligned. */
+ the expression does not need to be aligned. */
static int sh_no_align_cons = 0;
to be aligned. */
static void
-s_uacons (bytes)
- int bytes;
+s_uacons (int bytes)
{
/* Tell sh_cons_align not to align this value. */
sh_no_align_cons = 1;
enable this warning? */
void
-sh_cons_align (nbytes)
- int nbytes;
+sh_cons_align (int nbytes)
{
int nalign;
char *p;
also where we check for misaligned data. */
void
-sh_handle_align (frag)
- fragS *frag;
+sh_handle_align (fragS *frag)
{
int bytes = frag->fr_next->fr_address - frag->fr_address - frag->fr_fix;
/* See whether the relocation should be resolved locally. */
static bfd_boolean
-sh_local_pcrel (fix)
- fixS *fix;
+sh_local_pcrel (fixS *fix)
{
return (! sh_relax
&& (fix->fx_r_type == BFD_RELOC_SH_PCDISP8BY2
relaxing. */
int
-sh_force_relocation (fix)
- fixS *fix;
+sh_force_relocation (fixS *fix)
{
/* These relocations can't make it into a DSO, so no use forcing
them for global symbols. */
#ifdef OBJ_ELF
bfd_boolean
-sh_fix_adjustable (fixP)
- fixS *fixP;
+sh_fix_adjustable (fixS *fixP)
{
if (fixP->fx_r_type == BFD_RELOC_32_PLT_PCREL
|| fixP->fx_r_type == BFD_RELOC_32_GOT_PCREL
}
void
-sh_elf_final_processing ()
+sh_elf_final_processing (void)
{
int val;
/* Apply a fixup to the object file. */
void
-md_apply_fix3 (fixP, valP, seg)
- fixS * fixP;
- valueT * valP;
- segT seg ATTRIBUTE_UNUSED;
+md_apply_fix3 (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
{
char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
int lowbyte = target_big_endian ? 1 : 0;
case BFD_RELOC_SH_PCRELIMM8BY4:
/* The lower two bits of the PC are cleared before the
displacement is added in. We can assume that the destination
- is on a 4 byte bounday. If this instruction is also on a 4
+ is on a 4 byte boundary. If this instruction is also on a 4
byte boundary, then we want
(target - here) / 4
and target - here is a multiple of 4.
by which a fragment must grow to reach it's destination. */
int
-md_estimate_size_before_relax (fragP, segment_type)
- register fragS *fragP;
- register segT segment_type;
+md_estimate_size_before_relax (fragS *fragP, segT segment_type)
{
int what;
/* Put number into target byte order. */
void
-md_number_to_chars (ptr, use, nbytes)
- char *ptr;
- valueT use;
- int nbytes;
+md_number_to_chars (char *ptr, valueT use, int nbytes)
{
#ifdef HAVE_SH64
/* We might need to set the contents type to data. */
eg for the sh-hms target. */
long
-md_pcrel_from (fixP)
- fixS *fixP;
+md_pcrel_from (fixS *fixP)
{
return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address + 2;
}
long
-md_pcrel_from_section (fixP, sec)
- fixS *fixP;
- segT sec;
+md_pcrel_from_section (fixS *fixP, segT sec)
{
if (! sh_local_pcrel (fixP)
&& fixP->fx_addsy != (symbolS *) NULL
#ifdef OBJ_COFF
int
-tc_coff_sizemachdep (frag)
- fragS *frag;
+tc_coff_sizemachdep (fragS *frag)
{
return md_relax_table[frag->fr_subtype].rlx_length;
}
but does some minor tweaking. */
void
-sh_coff_reloc_mangle (seg, fix, intr, paddr)
- segment_info_type *seg;
- fixS *fix;
- struct internal_reloc *intr;
- unsigned int paddr;
+sh_coff_reloc_mangle (segment_info_type *seg, fixS *fix,
+ struct internal_reloc *intr, unsigned int paddr)
{
symbolS *symbol_ptr = fix->fx_addsy;
symbolS *dot;
/* Create a reloc. */
arelent *
-tc_gen_reloc (section, fixp)
- asection *section ATTRIBUTE_UNUSED;
- fixS *fixp;
+tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp)
{
arelent *rel;
bfd_reloc_code_real_type r_type;
rel->addend = 0;
rel->howto = bfd_reloc_type_lookup (stdoutput, r_type);
+#ifdef OBJ_ELF
if (rel->howto->type == R_SH_IND12W)
rel->addend += fixp->fx_offset - 4;
+#endif
if (rel->howto == NULL)
{
as_bad_where (fixp->fx_file, fixp->fx_line,
#ifdef OBJ_ELF
inline static char *
-sh_end_of_match (cont, what)
- char *cont, *what;
+sh_end_of_match (char *cont, char *what)
{
int len = strlen (what);
}
int
-sh_parse_name (name, exprP, nextcharP)
- char const *name;
- expressionS *exprP;
- char *nextcharP;
+sh_parse_name (char const *name, expressionS *exprP, char *nextcharP)
{
char *next = input_line_pointer;
char *next_end;
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