/* tc-tic4x.c -- Assemble for the Texas Instruments TMS320C[34]x.
- Copyright (C) 1997-2015 Free Software Foundation, Inc.
+ Copyright (C) 1997-2020 Free Software Foundation, Inc.
Contributed by Michael P. Hayes (m.hayes@elec.canterbury.ac.nz)
#define TIC4X_ALT_SYNTAX
-/* Equal to MAX_PRECISION in atof-ieee.c. */
-#define MAX_LITTLENUMS 6 /* (12 bytes) */
-
/* Handle of the inst mnemonic hash table. */
-static struct hash_control *tic4x_op_hash = NULL;
+static htab_t tic4x_op_hash = NULL;
/* Handle asg pseudo. */
-static struct hash_control *tic4x_asg_hash = NULL;
+static htab_t tic4x_asg_hash = NULL;
static unsigned int tic4x_cpu = 0; /* Default to TMS320C40. */
static unsigned int tic4x_revision = 0; /* CPU revision */
unsigned int nchars; /* This is always 4 for the C30. */
unsigned long opcode; /* Opcode number. */
expressionS exp; /* Expression required for relocation. */
- int reloc; /* Relocation type required. */
+ /* Relocation type required. */
+ bfd_reloc_code_real_type reloc;
int pcrel; /* True if relocation PC relative. */
char *pname; /* Name of instruction in parallel. */
unsigned int num_operands; /* Number of operands in total. */
extern FLONUM_TYPE generic_floating_point_number;
/* Precision in LittleNums. */
-#define MAX_PRECISION (4) /* Its a bit overkill for us, but the code
+#define MAX_PRECISION (4) /* It's a bit overkill for us, but the code
requires it... */
#define S_PRECISION (1) /* Short float constants 16-bit. */
#define F_PRECISION (2) /* Float and double types 32-bit. */
}
static void
-tic4x_insert_reg (char *regname, int regnum)
+tic4x_insert_reg (const char *regname, int regnum)
{
char buf[32];
int i;
- symbol_table_insert (symbol_new (regname, reg_section, (valueT) regnum,
- &zero_address_frag));
+ symbol_table_insert (symbol_new (regname, reg_section,
+ &zero_address_frag, regnum));
for (i = 0; regname[i]; i++)
buf[i] = ISLOWER (regname[i]) ? TOUPPER (regname[i]) : regname[i];
buf[i] = '\0';
- symbol_table_insert (symbol_new (buf, reg_section, (valueT) regnum,
- &zero_address_frag));
+ symbol_table_insert (symbol_new (buf, reg_section,
+ &zero_address_frag, regnum));
}
static void
-tic4x_insert_sym (char *symname, int value)
+tic4x_insert_sym (const char *symname, int value)
{
symbolS *symbolP;
symbolP = symbol_new (symname, absolute_section,
- (valueT) value, &zero_address_frag);
+ &zero_address_frag, value);
SF_SET_LOCAL (symbolP);
symbol_table_insert (symbolP);
}
char c;
char *name;
char *str;
- char *tmp;
SKIP_WHITESPACE ();
str = input_line_pointer;
}
*input_line_pointer++ = '\0';
c = get_symbol_name (&name); /* Get terminator. */
- tmp = xmalloc (strlen (str) + 1);
- strcpy (tmp, str);
- str = tmp;
- tmp = xmalloc (strlen (name) + 1);
- strcpy (tmp, name);
- name = tmp;
- if (hash_find (tic4x_asg_hash, name))
- hash_replace (tic4x_asg_hash, name, (void *) str);
- else
- hash_insert (tic4x_asg_hash, name, (void *) str);
+ str = xstrdup (str);
+ name = xstrdup (name);
+ str_hash_insert (tic4x_asg_hash, name, str);
(void) restore_line_pointer (c);
demand_empty_rest_of_line ();
}
as_bad (_("Non-constant symbols not allowed\n"));
return;
}
- exp.X_add_number &= 255; /* Limit numeber to 8-bit */
+ exp.X_add_number &= 255; /* Limit number to 8-bit */
emit_expr (&exp, 1);
bytes++;
}
if (c == '"')
c = * ++ input_line_pointer;
input_line_pointer++; /* Skip null symbol terminator. */
- name = xmalloc (input_line_pointer - section_name + 1);
- strcpy (name, section_name);
+ name = xstrdup (section_name);
/* TI C from version 5.0 allows a section name to contain a
subsection name as well. The subsection name is separated by a
symbol_set_frag (line_label, frag_now);
}
- if (bfd_get_section_flags (stdoutput, seg) == SEC_NO_FLAGS)
+ if (bfd_section_flags (seg) == SEC_NO_FLAGS)
{
- if (!bfd_set_section_flags (stdoutput, seg, SEC_DATA))
+ if (!bfd_set_section_flags (seg, SEC_DATA))
as_warn (_("Error setting flags for \"%s\": %s"), name,
bfd_errmsg (bfd_get_error ()));
}
if (c == '"')
c = * ++ input_line_pointer;
input_line_pointer++; /* Skip null symbol terminator. */
- name = xmalloc (input_line_pointer - section_name + 1);
- strcpy (name, section_name);
+ name = xstrdup (section_name);
if (c == ',')
input_line_pointer =
S_SET_VALUE (line_label, frag_now_fix ());
}
seg_info (seg)->bss = 1; /* Uninitialised data. */
- if (!bfd_set_section_flags (stdoutput, seg, SEC_ALLOC))
+ if (!bfd_set_section_flags (seg, SEC_ALLOC))
as_warn (_("Error setting flags for \"%s\": %s"), name,
bfd_errmsg (bfd_get_error ()));
tic4x_seg_alloc (name, seg, size, line_label);
}
/* Insert a new instruction template into hash table. */
-static int
+static void
tic4x_inst_insert (const tic4x_inst_t *inst)
{
static char prev_name[16];
- const char *retval = NULL;
/* Only insert the first name if have several similar entries. */
if (!strcmp (inst->name, prev_name) || inst->name[0] == '\0')
- return 1;
+ return;
- retval = hash_insert (tic4x_op_hash, inst->name, (void *) inst);
- if (retval != NULL)
- fprintf (stderr, "internal error: can't hash `%s': %s\n",
- inst->name, retval);
- else
- strcpy (prev_name, inst->name);
- return retval == NULL;
+ str_hash_insert (tic4x_op_hash, inst->name, (void *) inst);
+ strcpy (prev_name, inst->name);
}
/* Make a new instruction template. */
static tic4x_inst_t *
-tic4x_inst_make (char *name, unsigned long opcode, char *args)
+tic4x_inst_make (const char *name, unsigned long opcode, const char *args)
{
static tic4x_inst_t *insts = NULL;
static char *names = NULL;
if (insts == NULL)
{
/* Allocate memory to store name strings. */
- names = (char *) xmalloc (sizeof (char) * 8192);
+ names = XNEWVEC (char, 8192);
/* Allocate memory for additional insts. */
- insts = (tic4x_inst_t *)
- xmalloc (sizeof (tic4x_inst_t) * 1024);
+ insts = XNEWVEC (tic4x_inst_t, 1024);
}
insts[iindex].name = names;
insts[iindex].opcode = opcode;
}
/* Add instruction template, creating dynamic templates as required. */
-static int
+static void
tic4x_inst_add (const tic4x_inst_t *insts)
{
- char *s = insts->name;
+ const char *s = insts->name;
char *d;
unsigned int i;
- int ok = 1;
char name[16];
d = name;
/* We do not care about INSNs that is not a part of our
oplevel setting. */
if ((insts->oplevel & tic4x_oplevel) == 0)
- return ok;
+ return;
while (1)
{
{
tic4x_inst_t *inst;
int k = 0;
- char *c = tic4x_conds[i].name;
+ const char *c = tic4x_conds[i].name;
char *e = d;
while (*c)
*e = '\0';
/* If instruction found then have already processed it. */
- if (hash_find (tic4x_op_hash, name))
- return 1;
+ if (str_hash_find (tic4x_op_hash, name))
+ return;
do
{
(*s == 'B' ? 16 : 23)),
insts[k].args);
if (k == 0) /* Save strcmp() with following func. */
- ok &= tic4x_inst_insert (inst);
+ tic4x_inst_insert (inst);
k++;
}
while (!strcmp (insts->name,
insts[k].name));
}
- return ok;
- break;
+ return;
case '\0':
- return tic4x_inst_insert (insts);
- break;
+ tic4x_inst_insert (insts);
+ return;
default:
*d++ = *s++;
void
md_begin (void)
{
- int ok = 1;
unsigned int i;
/* Setup the proper opcode level according to the
tic4x_oplevel |= OP_IDLE2;
/* Create hash table for mnemonics. */
- tic4x_op_hash = hash_new ();
+ tic4x_op_hash = str_htab_create ();
/* Create hash table for asg pseudo. */
- tic4x_asg_hash = hash_new ();
+ tic4x_asg_hash = str_htab_create ();
/* Add mnemonics to hash table, expanding conditional mnemonics on fly. */
for (i = 0; i < tic4x_num_insts; i++)
- ok &= tic4x_inst_add (tic4x_insts + i);
+ tic4x_inst_add (tic4x_insts + i);
/* Create dummy inst to avoid errors accessing end of table. */
tic4x_inst_make ("", 0, "");
- if (!ok)
- as_fatal ("Broken assembler. No assembly attempted.");
-
/* Add registers to symbol table. */
tic4x_init_regtable ();
tic4x_indirect_parse (tic4x_operand_t *operand,
const tic4x_indirect_t *indirect)
{
- char *n = indirect->name;
+ const char *n = indirect->name;
char *s = input_line_pointer;
char *b;
symbolS *symbolP;
c = get_symbol_name (&str); /* Get terminator. */
new_pointer = input_line_pointer;
- if (strlen (str) && (entry = hash_find (tic4x_asg_hash, str)) != NULL)
+ if (strlen (str) && (entry = str_hash_find (tic4x_asg_hash, str)) != NULL)
{
(void) restore_line_pointer (c);
input_line_pointer = (char *) entry;
/* Allow ori ^foo, ar0 to be equivalent to ldi .hi.foo, ar0 */
/* WARNING : The TI C40 assembler cannot do this. */
else if (exp->X_op == O_symbol)
- {
- operand->mode = M_HI;
- break;
- }
+ operand->mode = M_HI;
+ else
+ as_bad (_("Expecting a constant value"));
+ break;
case '#':
input_line_pointer = tic4x_expression (++input_line_pointer, exp);
/* Allow ori foo, ar0 to be equivalent to ldi .lo.foo, ar0 */
/* WARNING : The TI C40 assembler cannot do this. */
else if (exp->X_op == O_symbol)
- {
- operand->mode = M_IMMED;
- break;
- }
-
+ operand->mode = M_IMMED;
else
as_bad (_("Expecting a constant value"));
break;
+
case '\\':
#endif
case '@':
}
else if (exp->X_add_number < 32 && IS_CPU_TIC3X (tic4x_cpu))
{
- INSERTU (opcode, exp->X_add_number | 0x20, 4, 0);
+ INSERTU (opcode, exp->X_add_number | 0x20, 5, 0);
continue;
}
else
if (tinsn->operands[1].mode == M_REGISTER
&& tinsn->operands[tinsn->num_operands-1].mode == M_REGISTER
&& tinsn->operands[1].expr.X_add_number == tinsn->operands[tinsn->num_operands-1].expr.X_add_number )
- as_warn (_("Equal parallell destination registers, one result will be discarded"));
+ as_warn (_("Equal parallel destination registers, one result will be discarded"));
}
}
/* Skip past instruction mnemonic. */
while (*s && *s != ' ')
s++;
- if (*s) /* Null terminate for hash_find. */
+ if (*s) /* Null terminate for str_hash_find. */
*s++ = '\0'; /* and skip past null. */
len = strlen (insn->name);
snprintf (insn->name + len, TIC4X_NAME_MAX - len, "_%s", str);
if (insn->in_use)
{
if ((insn->inst = (struct tic4x_inst *)
- hash_find (tic4x_op_hash, insn->name)) == NULL)
+ str_hash_find (tic4x_op_hash, insn->name)) == NULL)
{
as_bad (_("Unknown opcode `%s'."), insn->name);
insn->parallel = 0;
first_inst = inst;
ok = 0;
}
- } while (!ok && !strcmp (inst->name, inst[1].name) && inst++);
+ }
+ while (!ok && !strcmp (inst->name, inst[1].name) && inst++);
if (ok > 0)
{
s = str;
while (*s && *s != ' ') /* Skip past instruction mnemonic. */
s++;
- if (*s) /* Null terminate for hash_find. */
+ if (*s) /* Null terminate for str_hash_find. */
*s++ = '\0'; /* and skip past null. */
strncpy (insn->name, str, TIC4X_NAME_MAX - 1);
insn->name[TIC4X_NAME_MAX - 1] = '\0';
of chars emitted is stored in *sizeP. An error message is
returned, or NULL on OK. */
-char *
+const char *
md_atof (int type, char *litP, int *sizeP)
{
int prec;
{
case BFD_RELOC_32:
buf[3] = val >> 24;
+ /* Fall through. */
case BFD_RELOC_24:
case BFD_RELOC_24_PCREL:
buf[2] = val >> 16;
+ /* Fall through. */
case BFD_RELOC_16:
case BFD_RELOC_16_PCREL:
case BFD_RELOC_LO16:
int
-md_parse_option (int c, char *arg)
+md_parse_option (int c, const char *arg)
{
switch (c)
{
case 'b':
as_warn (_("Option -b is depreciated, please use -mbig"));
+ /* Fall through. */
case OPTION_BIG: /* big model */
tic4x_big_model = 1;
break;
case 'p':
as_warn (_("Option -p is depreciated, please use -mmemparm"));
+ /* Fall through. */
case OPTION_MEMPARM: /* push args */
tic4x_reg_args = 0;
break;
case 'r':
as_warn (_("Option -r is depreciated, please use -mregparm"));
+ /* Fall through. */
case OPTION_REGPARM: /* register args */
tic4x_reg_args = 1;
break;
case 's':
as_warn (_("Option -s is depreciated, please use -msmall"));
+ /* Fall through. */
case OPTION_SMALL: /* small model */
tic4x_big_model = 0;
break;
unsigned int op;
buf = (unsigned char *) fixP->fx_frag->fr_literal + fixP->fx_where;
- op = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0];
+ op = ((unsigned) buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0];
return ((fixP->fx_where + fixP->fx_frag->fr_address) >> 2) +
tic4x_pc_offset (op);
{
arelent *reloc;
- reloc = (arelent *) xmalloc (sizeof (arelent));
+ reloc = XNEW (arelent);
- reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
+ reloc->sym_ptr_ptr = XNEW (asymbol *);
*reloc->sym_ptr_ptr = symbol_get_bfdsym (fixP->fx_addsy);
reloc->address = fixP->fx_frag->fr_address + fixP->fx_where;
reloc->address /= OCTETS_PER_BYTE;
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