-/*-
- tc-pj.c -- Assemble code for Pico Java
- Copyright (C) 1999 Free Software Foundation.
+/* tc-pj.c -- Assemble code for Pico Java
+ Copyright 1999, 2000, 2001, 2002, 2003, 2005, 2007
+ 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)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
GAS is distributed in the hope that it will be useful,
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. */
+ the Free Software Foundation, 51 Franklin Street - Fifth Floor,
+ Boston, MA 02110-1301, USA. */
-/* Contributed by Steve Chamberlain of Transmeta, sac@pobox.com */
+/* Contributed by Steve Chamberlain of Transmeta <sac@pobox.com>. */
#include "as.h"
+#include "safe-ctype.h"
#include "opcode/pj.h"
-
extern const pj_opc_info_t pj_opc_info[512];
-const char comment_chars[] = "!/";
+const char comment_chars[] = "!/";
const char line_separator_chars[] = ";";
-const char line_comment_chars[] = "/!#";
+const char line_comment_chars[] = "/!#";
static int pending_reloc;
static struct hash_control *opcode_hash_control;
-
static void
-little (ignore)
- int ignore ATTRIBUTE_UNUSED;
+little (int ignore ATTRIBUTE_UNUSED)
{
target_big_endian = 0;
}
static void
-big (ignore)
- int ignore ATTRIBUTE_UNUSED;
+big (int ignore ATTRIBUTE_UNUSED)
{
target_big_endian = 1;
}
-
-const pseudo_typeS md_pseudo_table[] = {
+const pseudo_typeS md_pseudo_table[] =
+{
{"ml", little, 0},
{"mb", big, 0},
{0, 0, 0}
};
-
const char FLT_CHARS[] = "rRsSfFdDxXpP";
const char EXP_CHARS[] = "eE";
void
-md_operand (op)
- expressionS *op;
+md_operand (expressionS *op)
{
if (strncmp (input_line_pointer, "%hi16", 5) == 0)
{
if (pending_reloc)
- as_bad (_ ("confusing relocation expressions"));
+ as_bad (_("confusing relocation expressions"));
pending_reloc = BFD_RELOC_PJ_CODE_HI16;
input_line_pointer += 5;
expression (op);
}
+
if (strncmp (input_line_pointer, "%lo16", 5) == 0)
{
if (pending_reloc)
- as_bad (_ ("confusing relocation expressions"));
+ as_bad (_("confusing relocation expressions"));
pending_reloc = BFD_RELOC_PJ_CODE_LO16;
input_line_pointer += 5;
expression (op);
}
}
-/* Parse an expression and then restore the input line pointer. */
+/* Parse an expression and then restore the input line pointer. */
static char *
-parse_exp_save_ilp (s, op)
- char *s;
- expressionS *op;
+parse_exp_save_ilp (char *s, expressionS *op)
{
char *save = input_line_pointer;
+
input_line_pointer = s;
expression (op);
s = input_line_pointer;
we want to handle magic pending reloc expressions specially. */
void
-pj_cons_fix_new_pj (frag, where, nbytes, exp)
- fragS *frag;
- int where;
- int nbytes;
- expressionS *exp;
+pj_cons_fix_new_pj (fragS *frag, int where, int nbytes, expressionS *exp)
{
- static int rv[5][2] =
+ static int rv[5][2] =
{ { 0, 0 },
{ BFD_RELOC_8, BFD_RELOC_8 },
{ BFD_RELOC_PJ_CODE_DIR16, BFD_RELOC_16 },
{ 0, 0 },
{ BFD_RELOC_PJ_CODE_DIR32, BFD_RELOC_32 }};
- fix_new_exp (frag, where, nbytes, exp, 0,
+ fix_new_exp (frag, where, nbytes, exp, 0,
pending_reloc ? pending_reloc
- : rv [nbytes][(now_seg->flags & SEC_CODE) ? 0 : 1]);
+ : rv[nbytes][(now_seg->flags & SEC_CODE) ? 0 : 1]);
pending_reloc = 0;
}
-
/* Turn a reloc description character from the pj-opc.h table into
- code which BFD can handle. */
+ code which BFD can handle. */
static int
-c_to_r (x)
- char x;
+c_to_r (int x)
{
switch (x)
{
return 0;
}
-
-
-
/* Handler for the ipush fake opcode,
- turns ipush <foo> into sipush lo16<foo>, sethi hi16<foo>. */
+ turns ipush <foo> into sipush lo16<foo>, sethi hi16<foo>. */
static void
-ipush_code (opcode, str)
- pj_opc_info_t *opcode ATTRIBUTE_UNUSED;
- char *str;
+ipush_code (pj_opc_info_t *opcode ATTRIBUTE_UNUSED, char *str)
{
- int mod = 0;
char *b = frag_more (6);
expressionS arg;
+
b[0] = 0x11;
b[3] = 0xed;
- parse_exp_save_ilp (str + 1, &arg, &mod);
- if (mod)
- as_bad (_ ("can't have relocation for ipush"));
-
+ parse_exp_save_ilp (str + 1, &arg);
+ if (pending_reloc)
+ {
+ as_bad (_("can't have relocation for ipush"));
+ pending_reloc = 0;
+ }
- fix_new_exp (frag_now, b - frag_now->fr_literal + 1, 2,
- &arg, 0, BFD_RELOC_PJ_CODE_DIR16);
+ fix_new_exp (frag_now, b - frag_now->fr_literal + 1, 2,
+ &arg, 0, BFD_RELOC_PJ_CODE_DIR16);
fix_new_exp (frag_now, b - frag_now->fr_literal + 4, 2,
- &arg, 0, BFD_RELOC_PJ_CODE_HI16);
+ &arg, 0, BFD_RELOC_PJ_CODE_HI16);
}
/* Insert names into the opcode table which are really mini macros,
- not opcodes. The fakeness is inidicated with an opcode of -1. */
+ not opcodes. The fakeness is indicated with an opcode of -1. */
static void
- fake_opcode (name, func) const char *
- name;
- void (*func) ();
+fake_opcode (const char *name,
+ void (*func) (struct pj_opc_info_t *, char *))
{
- pj_opc_info_t *fake = (pj_opc_info_t *) xmalloc (sizeof (pj_opc_info_t));
+ pj_opc_info_t * fake = xmalloc (sizeof (pj_opc_info_t));
fake->opcode = -1;
fake->opcode_next = -1;
- fake->name = (const char *) func;
+ fake->u.func = func;
hash_insert (opcode_hash_control, name, (char *) fake);
}
-
/* Enter another entry into the opcode hash table so the same opcode
- can have another name. */
+ can have another name. */
+
static void
- alias (new, old) const char *
- new;
- const char *old;
+alias (const char *new, const char *old)
{
hash_insert (opcode_hash_control, new,
(char *) hash_find (opcode_hash_control, old));
}
-
/* This function is called once, at assembler startup time. It sets
up the hash table with all the opcodes in it, and also initializes
- some aliases for compatibility with other assemblers. */
+ some aliases for compatibility with other assemblers. */
void
-md_begin ()
+md_begin (void)
{
const pj_opc_info_t *opcode;
opcode_hash_control = hash_new ();
- /* Insert names into hash table */
- for (opcode = pj_opc_info; opcode->name; opcode++)
- hash_insert (opcode_hash_control, opcode->name, (char *) opcode);
+ /* Insert names into hash table. */
+ for (opcode = pj_opc_info; opcode->u.name; opcode++)
+ hash_insert (opcode_hash_control, opcode->u.name, (char *) opcode);
- /* Insert the only fake opcode. */
+ /* Insert the only fake opcode. */
fake_opcode ("ipush", ipush_code);
- /* Add some aliases for opcode names. */
+ /* Add some aliases for opcode names. */
alias ("ifeq_s", "ifeq");
alias ("ifne_s", "ifne");
alias ("if_icmpge_s", "if_icmpge");
bfd_set_arch_mach (stdoutput, TARGET_ARCH, 0);
}
-/* This is the guts of the machine-dependent assembler. STR points to a
- machine dependent instruction. This function is supposed to emit
- the frags/bytes it assembles to.
- */
+/* This is the guts of the machine-dependent assembler. STR points to
+ a machine dependent instruction. This function is supposed to emit
+ the frags/bytes it assembles to. */
void
-md_assemble (str)
- char *str;
+md_assemble (char *str)
{
- unsigned char *op_start;
- unsigned char *op_end;
+ char *op_start;
+ char *op_end;
- // pj_operan_info operand[3];
pj_opc_info_t *opcode;
char *output;
int idx = 0;
int nlen = 0;
- /* Drop leading whitespace */
+ /* Drop leading whitespace. */
while (*str == ' ')
str++;
- /* find the op code end */
- for (op_start = op_end = (unsigned char *) (str);
- *op_end && !is_end_of_line[*op_end] && *op_end != ' ';
- op_end++)
+ /* Find the op code end. */
+ op_start = str;
+ for (op_end = str;
+ *op_end && !is_end_of_line[*op_end & 0xff] && *op_end != ' ';
+ op_end++)
nlen++;
pend = *op_end;
*op_end = 0;
if (nlen == 0)
- {
- as_bad (_ ("can't find opcode "));
- }
+ as_bad (_("can't find opcode "));
opcode = (pj_opc_info_t *) hash_find (opcode_hash_control, op_start);
*op_end = pend;
if (opcode == NULL)
{
- as_bad (_ ("unknown opcode %s"), op_start);
+ as_bad (_("unknown opcode %s"), op_start);
return;
}
if (opcode->opcode == -1)
{
- /* It's a fake opcode.. dig out the args and pretend that was
- what we were passed */
- ((void (*)()) opcode->name) (opcode, op_end);
+ /* It's a fake opcode. Dig out the args and pretend that was
+ what we were passed. */
+ (*opcode->u.func) (opcode, op_end);
}
else
{
op_end = parse_exp_save_ilp (op_end, &arg);
- fix_new_exp (frag_now,
+ fix_new_exp (frag_now,
output - frag_now->fr_literal + idx,
ASIZE (opcode->arg[an]),
&arg,
- PCREL (opcode->arg[an]),
+ PCREL (opcode->arg[an]),
pending_reloc ? pending_reloc : c_to_r (opcode->arg[an]));
idx += ASIZE (opcode->arg[an]);
pending_reloc = 0;
}
- while (isspace (*op_end))
+ while (ISSPACE (*op_end))
op_end++;
if (*op_end != 0)
}
-/* Turn a string in input_line_pointer into a floating point constant of type
- type, and store the appropriate bytes in *litP. The number of LITTLENUMS
- emitted is stored in *sizeP . An error message is 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];
- char *t;
- int i;
-
- switch (type)
- {
- case 'f':
- prec = 2;
- break;
-
- case 'd':
- prec = 4;
- break;
-
- default:
- *sizeP = 0;
- return _ ("bad call to md_atof");
- }
-
- t = atof_ieee (input_line_pointer, type, words);
- if (t)
- input_line_pointer = t;
-
- *sizeP = prec * 2;
-
- if (!target_big_endian)
- {
- for (i = prec - 1; i >= 0; i--)
- {
- md_number_to_chars (litP, (valueT) words[i], 2);
- litP += 2;
- }
- }
- else
- {
- for (i = 0; i < prec; i++)
- {
- md_number_to_chars (litP, (valueT) words[i], 2);
- litP += 2;
- }
- }
-
- return NULL;
+ return ieee_md_atof (type, litP, sizeP, target_big_endian);
}
\f
+const char *md_shortopts = "";
-CONST char *md_shortopts = "";
-
-struct option md_longopts[] = {
-
+struct option md_longopts[] =
+{
#define OPTION_LITTLE (OPTION_MD_BASE)
#define OPTION_BIG (OPTION_LITTLE + 1)
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)
{
case OPTION_LITTLE:
- little ();
+ little (0);
break;
case OPTION_BIG:
- big ();
+ big (0);
break;
default:
return 0;
}
void
-md_show_usage (stream)
- FILE *stream;
+md_show_usage (FILE *stream)
{
- fprintf (stream, _ ("\
+ fprintf (stream, _("\
PJ options:\n\
-little generate little endian code\n\
-big generate big endian code\n"));
}
-
-
/* Apply a fixup to the object file. */
-
-int
-md_apply_fix (fixP, valp)
- fixS *fixP;
- valueT *valp;
+void
+md_apply_fix (fixS *fixP, valueT * valP, segT seg ATTRIBUTE_UNUSED)
{
char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
- long val = *valp;
+ long val = *valP;
long max, min;
int shift;
-
- /* adjust_reloc_syms won't convert a reloc against a weak symbol
- into a reloc against a section, but bfd_install_relocation will
- screw up if the symbol is defined, so we have to adjust val here
- to avoid the screw up later. */
-
- if (fixP->fx_addsy != NULL && S_IS_WEAK (fixP->fx_addsy))
- val -= S_GET_VALUE (fixP->fx_addsy);
-
max = min = 0;
shift = 0;
switch (fixP->fx_r_type)
case BFD_RELOC_VTABLE_INHERIT:
case BFD_RELOC_VTABLE_ENTRY:
fixP->fx_done = 0;
- return 0;
+ return;
case BFD_RELOC_PJ_CODE_REL16:
if (val < -0x8000 || val >= 0x7fff)
- as_bad_where (fixP->fx_file, fixP->fx_line, _ ("pcrel too far"));
+ as_bad_where (fixP->fx_file, fixP->fx_line, _("pcrel too far"));
buf[0] |= (val >> 8) & 0xff;
buf[1] = val & 0xff;
break;
*buf++ = val >> 8;
*buf++ = val >> 0;
}
- else
+ else
{
*buf++ = val >> 0;
*buf++ = val >> 8;
}
break;
-
default:
abort ();
}
if (max != 0 && (val < min || val > max))
- as_bad_where (fixP->fx_file, fixP->fx_line, _ ("offset out of range"));
+ as_bad_where (fixP->fx_file, fixP->fx_line, _("offset out of range"));
- return 0;
+ if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0)
+ fixP->fx_done = 1;
}
/* Put number into target byte order. Always put values in an
- executable section into big endian order. */
+ executable section into big endian 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)
{
if (target_big_endian || now_seg->flags & SEC_CODE)
number_to_chars_bigendian (ptr, use, nbytes);
number_to_chars_littleendian (ptr, use, nbytes);
}
-
-
/* Translate internal representation of relocation info to BFD target
- format. */
+ format. */
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 = (arelent *) xmalloc (sizeof (arelent));
- rel->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
+ rel = xmalloc (sizeof (arelent));
+ rel->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
*rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
rel->address = fixp->fx_frag->fr_address + fixp->fx_where;
if (rel->howto == NULL)
{
as_bad_where (fixp->fx_file, fixp->fx_line,
- _ ("Cannot represent relocation type %s"),
+ _("Cannot represent relocation type %s"),
bfd_get_reloc_code_name (r_type));
/* Set howto to a garbage value so that we can keep going. */
rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32);