/* tc-mn10300.c -- Assembler code for the Matsushita 10300
-
- Copyright (C) 1996 Free Software Foundation.
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+ 2006, 2007, 2008, 2009 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. */
-#include <stdio.h>
-#include <ctype.h>
#include "as.h"
-#include "subsegs.h"
+#include "safe-ctype.h"
+#include "subsegs.h"
#include "opcode/mn10300.h"
+#include "dwarf2dbg.h"
+#include "libiberty.h"
\f
/* Structure to hold information about predefined registers. */
struct reg_name
int value;
};
-/* Generic assembler global variables which must be defined by all targets. */
+/* Generic assembler global variables which must be defined by all
+ targets. */
-/* Characters which always start a comment. */
+/* Characters which always start a comment. */
const char comment_chars[] = "#";
/* Characters which start a comment at the beginning of a line. */
const char line_comment_chars[] = ";#";
-/* Characters which may be used to separate multiple commands on a
+/* Characters which may be used to separate multiple commands on a
single line. */
const char line_separator_chars[] = ";";
-/* Characters which are used to indicate an exponent in a floating
+/* Characters which are used to indicate an exponent in a floating
point number. */
const char EXP_CHARS[] = "eE";
-/* Characters which mean that a number is a floating point constant,
+/* Characters which mean that a number is a floating point constant,
as in 0d1.0. */
const char FLT_CHARS[] = "dD";
\f
+const relax_typeS md_relax_table[] =
+{
+ /* The plus values for the bCC and fBCC instructions in the table below
+ are because the branch instruction is translated into a jump
+ instruction that is now +2 or +3 bytes further on in memory, and the
+ correct size of jump instruction must be selected. */
+ /* bCC relaxing. */
+ {0x7f, -0x80, 2, 1},
+ {0x7fff + 2, -0x8000 + 2, 5, 2},
+ {0x7fffffff, -0x80000000, 7, 0},
+
+ /* bCC relaxing (uncommon cases for 3byte length instructions) */
+ {0x7f, -0x80, 3, 4},
+ {0x7fff + 3, -0x8000 + 3, 6, 5},
+ {0x7fffffff, -0x80000000, 8, 0},
+
+ /* call relaxing. */
+ {0x7fff, -0x8000, 5, 7},
+ {0x7fffffff, -0x80000000, 7, 0},
+
+ /* calls relaxing. */
+ {0x7fff, -0x8000, 4, 9},
+ {0x7fffffff, -0x80000000, 6, 0},
+
+ /* jmp relaxing. */
+ {0x7f, -0x80, 2, 11},
+ {0x7fff, -0x8000, 3, 12},
+ {0x7fffffff, -0x80000000, 5, 0},
+
+ /* fbCC relaxing. */
+ {0x7f, -0x80, 3, 14},
+ {0x7fff + 3, -0x8000 + 3, 6, 15},
+ {0x7fffffff, -0x80000000, 8, 0},
+
+};
+
+/* Set linkrelax here to avoid fixups in most sections. */
+int linkrelax = 1;
+
+static int current_machine;
+
+/* Fixups. */
+#define MAX_INSN_FIXUPS 5
-/* local functions */
-static void mn10300_insert_operand PARAMS ((unsigned long *, unsigned long *,
- const struct mn10300_operand *,
- offsetT, char *, unsigned,
- unsigned));
-static unsigned long check_operand PARAMS ((unsigned long,
- const struct mn10300_operand *,
- offsetT));
-static int reg_name_search PARAMS ((const struct reg_name *, int, const char *));
-static boolean register_name PARAMS ((expressionS *expressionP));
-static boolean system_register_name PARAMS ((expressionS *expressionP));
-static boolean cc_name PARAMS ((expressionS *expressionP));
-
-
-/* fixups */
-#define MAX_INSN_FIXUPS (5)
struct mn10300_fixup
{
expressionS exp;
};
struct mn10300_fixup fixups[MAX_INSN_FIXUPS];
static int fc;
+
+/* We must store the value of each register operand so that we can
+ verify that certain registers do not match. */
+int mn10300_reg_operands[MN10300_MAX_OPERANDS];
\f
const char *md_shortopts = "";
-struct option md_longopts[] = {
- {NULL, no_argument, NULL, 0}
-};
-size_t md_longopts_size = sizeof(md_longopts);
-/* The target specific pseudo-ops which we support. */
-const pseudo_typeS md_pseudo_table[] =
+struct option md_longopts[] =
{
- { NULL, NULL, 0 }
+ {NULL, no_argument, NULL, 0}
};
+size_t md_longopts_size = sizeof (md_longopts);
+
+#define HAVE_AM33_2 (current_machine == AM33_2)
+#define HAVE_AM33 (current_machine == AM33 || HAVE_AM33_2)
+#define HAVE_AM30 (current_machine == AM30)
+
/* Opcode hash table. */
static struct hash_control *mn10300_hash;
-/* This table is sorted. Suitable for searching by a binary search. */
+/* This table is sorted. Suitable for searching by a binary search. */
static const struct reg_name data_registers[] =
{
{ "d0", 0 },
{ "d2", 2 },
{ "d3", 3 },
};
-#define DATA_REG_NAME_CNT (sizeof(data_registers) / sizeof(struct reg_name))
static const struct reg_name address_registers[] =
{
{ "a2", 2 },
{ "a3", 3 },
};
-#define ADDRESS_REG_NAME_CNT (sizeof(address_registers) / sizeof(struct reg_name))
+static const struct reg_name r_registers[] =
+{
+ { "a0", 8 },
+ { "a1", 9 },
+ { "a2", 10 },
+ { "a3", 11 },
+ { "d0", 12 },
+ { "d1", 13 },
+ { "d2", 14 },
+ { "d3", 15 },
+ { "e0", 0 },
+ { "e1", 1 },
+ { "e10", 10 },
+ { "e11", 11 },
+ { "e12", 12 },
+ { "e13", 13 },
+ { "e14", 14 },
+ { "e15", 15 },
+ { "e2", 2 },
+ { "e3", 3 },
+ { "e4", 4 },
+ { "e5", 5 },
+ { "e6", 6 },
+ { "e7", 7 },
+ { "e8", 8 },
+ { "e9", 9 },
+ { "r0", 0 },
+ { "r1", 1 },
+ { "r10", 10 },
+ { "r11", 11 },
+ { "r12", 12 },
+ { "r13", 13 },
+ { "r14", 14 },
+ { "r15", 15 },
+ { "r2", 2 },
+ { "r3", 3 },
+ { "r4", 4 },
+ { "r5", 5 },
+ { "r6", 6 },
+ { "r7", 7 },
+ { "r8", 8 },
+ { "r9", 9 },
+};
+
+static const struct reg_name xr_registers[] =
+{
+ { "mcrh", 2 },
+ { "mcrl", 3 },
+ { "mcvf", 4 },
+ { "mdrq", 1 },
+ { "sp", 0 },
+ { "xr0", 0 },
+ { "xr1", 1 },
+ { "xr10", 10 },
+ { "xr11", 11 },
+ { "xr12", 12 },
+ { "xr13", 13 },
+ { "xr14", 14 },
+ { "xr15", 15 },
+ { "xr2", 2 },
+ { "xr3", 3 },
+ { "xr4", 4 },
+ { "xr5", 5 },
+ { "xr6", 6 },
+ { "xr7", 7 },
+ { "xr8", 8 },
+ { "xr9", 9 },
+};
+
+static const struct reg_name float_registers[] =
+{
+ { "fs0", 0 },
+ { "fs1", 1 },
+ { "fs10", 10 },
+ { "fs11", 11 },
+ { "fs12", 12 },
+ { "fs13", 13 },
+ { "fs14", 14 },
+ { "fs15", 15 },
+ { "fs16", 16 },
+ { "fs17", 17 },
+ { "fs18", 18 },
+ { "fs19", 19 },
+ { "fs2", 2 },
+ { "fs20", 20 },
+ { "fs21", 21 },
+ { "fs22", 22 },
+ { "fs23", 23 },
+ { "fs24", 24 },
+ { "fs25", 25 },
+ { "fs26", 26 },
+ { "fs27", 27 },
+ { "fs28", 28 },
+ { "fs29", 29 },
+ { "fs3", 3 },
+ { "fs30", 30 },
+ { "fs31", 31 },
+ { "fs4", 4 },
+ { "fs5", 5 },
+ { "fs6", 6 },
+ { "fs7", 7 },
+ { "fs8", 8 },
+ { "fs9", 9 },
+};
+
+static const struct reg_name double_registers[] =
+{
+ { "fd0", 0 },
+ { "fd10", 10 },
+ { "fd12", 12 },
+ { "fd14", 14 },
+ { "fd16", 16 },
+ { "fd18", 18 },
+ { "fd2", 2 },
+ { "fd20", 20 },
+ { "fd22", 22 },
+ { "fd24", 24 },
+ { "fd26", 26 },
+ { "fd28", 28 },
+ { "fd30", 30 },
+ { "fd4", 4 },
+ { "fd6", 6 },
+ { "fd8", 8 },
+};
+
+/* We abuse the `value' field, that would be otherwise unused, to
+ encode the architecture on which (access to) the register was
+ introduced. FIXME: we should probably warn when we encounter a
+ register name when assembling for an architecture that doesn't
+ support it, before parsing it as a symbol name. */
static const struct reg_name other_registers[] =
{
+ { "epsw", AM33 },
{ "mdr", 0 },
+ { "pc", AM33 },
{ "psw", 0 },
{ "sp", 0 },
};
-#define OTHER_REG_NAME_CNT (sizeof(other_registers) / sizeof(struct reg_name))
-/* reg_name_search does a binary search of the given register table
- to see if "name" is a valid regiter name. Returns the register
- number from the array on success, or -1 on failure. */
+#define OTHER_REG_NAME_CNT ARRAY_SIZE (other_registers)
+
+/* Perform a binary search of the given register table REGS to see
+ if NAME is a valid regiter name. Returns the register number from
+ the array on success, or -1 on failure. */
static int
-reg_name_search (regs, regcount, name)
- const struct reg_name *regs;
- int regcount;
- const char *name;
+reg_name_search (const struct reg_name *regs,
+ int regcount,
+ const char *name)
{
- int middle, low, high;
- int cmp;
+ int low, high;
low = 0;
high = regcount - 1;
do
{
+ int cmp, middle;
+
middle = (low + high) / 2;
cmp = strcasecmp (name, regs[middle].name);
if (cmp < 0)
high = middle - 1;
else if (cmp > 0)
low = middle + 1;
- else
- return regs[middle].value;
+ else
+ return regs[middle].value;
}
while (low <= high);
+
return -1;
}
-
-/* Summary of register_name().
- *
- * in: Input_line_pointer points to 1st char of operand.
- *
- * out: A expressionS.
- * The operand may have been a register: in this case, X_op == O_register,
- * X_add_number is set to the register number, and truth is returned.
- * Input_line_pointer->(next non-blank) char after operand, or is in
- * its original state.
- */
-static boolean
-data_register_name (expressionP)
- expressionS *expressionP;
+/* Looks at the current position in the input line to see if it is
+ the name of a register in TABLE. If it is, then the name is
+ converted into an expression returned in EXPRESSIONP (with X_op
+ set to O_register and X_add_number set to the register number), the
+ input pointer is left pointing at the first non-blank character after
+ the name and the function returns TRUE. Otherwise the input pointer
+ is left alone and the function returns FALSE. */
+
+static bfd_boolean
+get_register_name (expressionS * expressionP,
+ const struct reg_name * table,
+ size_t table_length)
{
int reg_number;
char *name;
char *start;
char c;
- /* Find the spelling of the operand */
+ /* Find the spelling of the operand. */
start = name = input_line_pointer;
c = get_symbol_end ();
- reg_number = reg_name_search (data_registers, DATA_REG_NAME_CNT, name);
+ reg_number = reg_name_search (table, table_length, name);
+
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
- /* look to see if it's in the register table */
- if (reg_number >= 0)
+ /* Look to see if it's in the register table. */
+ if (reg_number >= 0)
{
expressionP->X_op = O_register;
expressionP->X_add_number = reg_number;
- /* make the rest nice */
+ /* Make the rest nice. */
expressionP->X_add_symbol = NULL;
expressionP->X_op_symbol = NULL;
- *input_line_pointer = c; /* put back the delimiting char */
- return true;
- }
- else
- {
- /* reset the line as if we had not done anything */
- *input_line_pointer = c; /* put back the delimiting char */
- input_line_pointer = start; /* reset input_line pointer */
- return false;
+
+ return TRUE;
}
+
+ /* Reset the line as if we had not done anything. */
+ input_line_pointer = start;
+ return FALSE;
}
-/* Summary of register_name().
- *
- * in: Input_line_pointer points to 1st char of operand.
- *
- * out: A expressionS.
- * The operand may have been a register: in this case, X_op == O_register,
- * X_add_number is set to the register number, and truth is returned.
- * Input_line_pointer->(next non-blank) char after operand, or is in
- * its original state.
- */
-static boolean
-address_register_name (expressionP)
- expressionS *expressionP;
+static bfd_boolean
+r_register_name (expressionS *expressionP)
{
- int reg_number;
- char *name;
- char *start;
- char c;
+ return get_register_name (expressionP, r_registers, ARRAY_SIZE (r_registers));
+}
- /* Find the spelling of the operand */
- start = name = input_line_pointer;
- c = get_symbol_end ();
- reg_number = reg_name_search (address_registers, ADDRESS_REG_NAME_CNT, name);
+static bfd_boolean
+xr_register_name (expressionS *expressionP)
+{
+ return get_register_name (expressionP, xr_registers, ARRAY_SIZE (xr_registers));
+}
- /* look to see if it's in the register table */
- if (reg_number >= 0)
- {
- expressionP->X_op = O_register;
- expressionP->X_add_number = reg_number;
+static bfd_boolean
+data_register_name (expressionS *expressionP)
+{
+ return get_register_name (expressionP, data_registers, ARRAY_SIZE (data_registers));
+}
- /* make the rest nice */
- expressionP->X_add_symbol = NULL;
- expressionP->X_op_symbol = NULL;
- *input_line_pointer = c; /* put back the delimiting char */
- return true;
- }
- else
- {
- /* reset the line as if we had not done anything */
- *input_line_pointer = c; /* put back the delimiting char */
- input_line_pointer = start; /* reset input_line pointer */
- return false;
- }
+static bfd_boolean
+address_register_name (expressionS *expressionP)
+{
+ return get_register_name (expressionP, address_registers, ARRAY_SIZE (address_registers));
+}
+
+static bfd_boolean
+float_register_name (expressionS *expressionP)
+{
+ return get_register_name (expressionP, float_registers, ARRAY_SIZE (float_registers));
+}
+
+static bfd_boolean
+double_register_name (expressionS *expressionP)
+{
+ return get_register_name (expressionP, double_registers, ARRAY_SIZE (double_registers));
}
-/* Summary of register_name().
- *
- * in: Input_line_pointer points to 1st char of operand.
- *
- * out: A expressionS.
- * The operand may have been a register: in this case, X_op == O_register,
- * X_add_number is set to the register number, and truth is returned.
- * Input_line_pointer->(next non-blank) char after operand, or is in
- * its original state.
- */
-static boolean
-other_register_name (expressionP)
- expressionS *expressionP;
+static bfd_boolean
+other_register_name (expressionS *expressionP)
{
int reg_number;
char *name;
char *start;
char c;
- /* Find the spelling of the operand */
+ /* Find the spelling of the operand. */
start = name = input_line_pointer;
c = get_symbol_end ();
- reg_number = reg_name_search (other_registers, OTHER_REG_NAME_CNT, name);
+ reg_number = reg_name_search (other_registers, ARRAY_SIZE (other_registers), name);
- /* look to see if it's in the register table */
- if (reg_number >= 0)
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
+
+ /* Look to see if it's in the register table. */
+ if (reg_number == 0
+ || (reg_number == AM33 && HAVE_AM33))
{
expressionP->X_op = O_register;
- expressionP->X_add_number = reg_number;
+ expressionP->X_add_number = 0;
- /* make the rest nice */
+ /* Make the rest nice. */
expressionP->X_add_symbol = NULL;
expressionP->X_op_symbol = NULL;
- *input_line_pointer = c; /* put back the delimiting char */
- return true;
- }
- else
- {
- /* reset the line as if we had not done anything */
- *input_line_pointer = c; /* put back the delimiting char */
- input_line_pointer = start; /* reset input_line pointer */
- return false;
+
+ return TRUE;
}
+
+ /* Reset the line as if we had not done anything. */
+ input_line_pointer = start;
+ return FALSE;
}
void
-md_show_usage (stream)
- FILE *stream;
+md_show_usage (FILE *stream)
{
- fprintf(stream, "MN10300 options:\n\
-none yet\n");
-}
+ fprintf (stream, _("MN10300 assembler options:\n\
+none yet\n"));
+}
int
-md_parse_option (c, arg)
- int c;
- char *arg;
+md_parse_option (int c ATTRIBUTE_UNUSED, char *arg ATTRIBUTE_UNUSED)
{
return 0;
}
symbolS *
-md_undefined_symbol (name)
- char *name;
+md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
{
return 0;
}
char *
-md_atof (type, litp, sizep)
- int type;
- char *litp;
- int *sizep;
-{
- int prec;
- LITTLENUM_TYPE words[4];
- char *t;
- int i;
+md_atof (int type, char *litp, int *sizep)
+{
+ return ieee_md_atof (type, litp, sizep, FALSE);
+}
+
+void
+md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec,
+ fragS *fragP)
+{
+ static unsigned long label_count = 0;
+ char buf[40];
- switch (type)
+ subseg_change (sec, 0);
+ if (fragP->fr_subtype == 0)
{
- case 'f':
- prec = 2;
- break;
+ fix_new (fragP, fragP->fr_fix + 1, 1, fragP->fr_symbol,
+ fragP->fr_offset + 1, 1, BFD_RELOC_8_PCREL);
+ fragP->fr_var = 0;
+ fragP->fr_fix += 2;
+ }
+ else if (fragP->fr_subtype == 1)
+ {
+ /* Reverse the condition of the first branch. */
+ int offset = fragP->fr_fix;
+ int opcode = fragP->fr_literal[offset] & 0xff;
- case 'd':
- prec = 4;
- break;
+ switch (opcode)
+ {
+ case 0xc8:
+ opcode = 0xc9;
+ break;
+ case 0xc9:
+ opcode = 0xc8;
+ break;
+ case 0xc0:
+ opcode = 0xc2;
+ break;
+ case 0xc2:
+ opcode = 0xc0;
+ break;
+ case 0xc3:
+ opcode = 0xc1;
+ break;
+ case 0xc1:
+ opcode = 0xc3;
+ break;
+ case 0xc4:
+ opcode = 0xc6;
+ break;
+ case 0xc6:
+ opcode = 0xc4;
+ break;
+ case 0xc7:
+ opcode = 0xc5;
+ break;
+ case 0xc5:
+ opcode = 0xc7;
+ break;
+ default:
+ abort ();
+ }
+ fragP->fr_literal[offset] = opcode;
+
+ /* Create a fixup for the reversed conditional branch. */
+ sprintf (buf, ".%s_%ld", FAKE_LABEL_NAME, label_count++);
+ fix_new (fragP, fragP->fr_fix + 1, 1,
+ symbol_new (buf, sec, 0, fragP->fr_next),
+ fragP->fr_offset + 1, 1, BFD_RELOC_8_PCREL);
+
+ /* Now create the unconditional branch + fixup to the
+ final target. */
+ fragP->fr_literal[offset + 2] = 0xcc;
+ fix_new (fragP, fragP->fr_fix + 3, 2, fragP->fr_symbol,
+ fragP->fr_offset + 1, 1, BFD_RELOC_16_PCREL);
+ fragP->fr_var = 0;
+ fragP->fr_fix += 5;
+ }
+ else if (fragP->fr_subtype == 2)
+ {
+ /* Reverse the condition of the first branch. */
+ int offset = fragP->fr_fix;
+ int opcode = fragP->fr_literal[offset] & 0xff;
- default:
- *sizep = 0;
- return "bad call to md_atof";
+ switch (opcode)
+ {
+ case 0xc8:
+ opcode = 0xc9;
+ break;
+ case 0xc9:
+ opcode = 0xc8;
+ break;
+ case 0xc0:
+ opcode = 0xc2;
+ break;
+ case 0xc2:
+ opcode = 0xc0;
+ break;
+ case 0xc3:
+ opcode = 0xc1;
+ break;
+ case 0xc1:
+ opcode = 0xc3;
+ break;
+ case 0xc4:
+ opcode = 0xc6;
+ break;
+ case 0xc6:
+ opcode = 0xc4;
+ break;
+ case 0xc7:
+ opcode = 0xc5;
+ break;
+ case 0xc5:
+ opcode = 0xc7;
+ break;
+ default:
+ abort ();
+ }
+ fragP->fr_literal[offset] = opcode;
+
+ /* Create a fixup for the reversed conditional branch. */
+ sprintf (buf, ".%s_%ld", FAKE_LABEL_NAME, label_count++);
+ fix_new (fragP, fragP->fr_fix + 1, 1,
+ symbol_new (buf, sec, 0, fragP->fr_next),
+ fragP->fr_offset + 1, 1, BFD_RELOC_8_PCREL);
+
+ /* Now create the unconditional branch + fixup to the
+ final target. */
+ fragP->fr_literal[offset + 2] = 0xdc;
+ fix_new (fragP, fragP->fr_fix + 3, 4, fragP->fr_symbol,
+ fragP->fr_offset + 1, 1, BFD_RELOC_32_PCREL);
+ fragP->fr_var = 0;
+ fragP->fr_fix += 7;
}
-
- t = atof_ieee (input_line_pointer, type, words);
- if (t)
- input_line_pointer = t;
+ else if (fragP->fr_subtype == 3)
+ {
+ fix_new (fragP, fragP->fr_fix + 2, 1, fragP->fr_symbol,
+ fragP->fr_offset + 2, 1, BFD_RELOC_8_PCREL);
+ fragP->fr_var = 0;
+ fragP->fr_fix += 3;
+ }
+ else if (fragP->fr_subtype == 4)
+ {
+ /* Reverse the condition of the first branch. */
+ int offset = fragP->fr_fix;
+ int opcode = fragP->fr_literal[offset + 1] & 0xff;
- *sizep = prec * 2;
+ switch (opcode)
+ {
+ case 0xe8:
+ opcode = 0xe9;
+ break;
+ case 0xe9:
+ opcode = 0xe8;
+ break;
+ case 0xea:
+ opcode = 0xeb;
+ break;
+ case 0xeb:
+ opcode = 0xea;
+ break;
+ default:
+ abort ();
+ }
+ fragP->fr_literal[offset + 1] = opcode;
+
+ /* Create a fixup for the reversed conditional branch. */
+ sprintf (buf, ".%s_%ld", FAKE_LABEL_NAME, label_count++);
+ fix_new (fragP, fragP->fr_fix + 2, 1,
+ symbol_new (buf, sec, 0, fragP->fr_next),
+ fragP->fr_offset + 2, 1, BFD_RELOC_8_PCREL);
+
+ /* Now create the unconditional branch + fixup to the
+ final target. */
+ fragP->fr_literal[offset + 3] = 0xcc;
+ fix_new (fragP, fragP->fr_fix + 4, 2, fragP->fr_symbol,
+ fragP->fr_offset + 1, 1, BFD_RELOC_16_PCREL);
+ fragP->fr_var = 0;
+ fragP->fr_fix += 6;
+ }
+ else if (fragP->fr_subtype == 5)
+ {
+ /* Reverse the condition of the first branch. */
+ int offset = fragP->fr_fix;
+ int opcode = fragP->fr_literal[offset + 1] & 0xff;
- for (i = prec - 1; i >= 0; i--)
+ switch (opcode)
+ {
+ case 0xe8:
+ opcode = 0xe9;
+ break;
+ case 0xea:
+ opcode = 0xeb;
+ break;
+ case 0xeb:
+ opcode = 0xea;
+ break;
+ default:
+ abort ();
+ }
+ fragP->fr_literal[offset + 1] = opcode;
+
+ /* Create a fixup for the reversed conditional branch. */
+ sprintf (buf, ".%s_%ld", FAKE_LABEL_NAME, label_count++);
+ fix_new (fragP, fragP->fr_fix + 2, 1,
+ symbol_new (buf, sec, 0, fragP->fr_next),
+ fragP->fr_offset + 2, 1, BFD_RELOC_8_PCREL);
+
+ /* Now create the unconditional branch + fixup to the
+ final target. */
+ fragP->fr_literal[offset + 3] = 0xdc;
+ fix_new (fragP, fragP->fr_fix + 4, 4, fragP->fr_symbol,
+ fragP->fr_offset + 1, 1, BFD_RELOC_32_PCREL);
+ fragP->fr_var = 0;
+ fragP->fr_fix += 8;
+ }
+ else if (fragP->fr_subtype == 6)
{
- md_number_to_chars (litp, (valueT) words[i], 2);
- litp += 2;
+ int offset = fragP->fr_fix;
+
+ fragP->fr_literal[offset] = 0xcd;
+ fix_new (fragP, fragP->fr_fix + 1, 2, fragP->fr_symbol,
+ fragP->fr_offset + 1, 1, BFD_RELOC_16_PCREL);
+ fragP->fr_var = 0;
+ fragP->fr_fix += 5;
}
+ else if (fragP->fr_subtype == 7)
+ {
+ int offset = fragP->fr_fix;
- return NULL;
-}
+ fragP->fr_literal[offset] = 0xdd;
+ fragP->fr_literal[offset + 5] = fragP->fr_literal[offset + 3];
+ fragP->fr_literal[offset + 6] = fragP->fr_literal[offset + 4];
+ fix_new (fragP, fragP->fr_fix + 1, 4, fragP->fr_symbol,
+ fragP->fr_offset + 1, 1, BFD_RELOC_32_PCREL);
+ fragP->fr_var = 0;
+ fragP->fr_fix += 7;
+ }
+ else if (fragP->fr_subtype == 8)
+ {
+ int offset = fragP->fr_fix;
+
+ fragP->fr_literal[offset] = 0xfa;
+ fragP->fr_literal[offset + 1] = 0xff;
+ fix_new (fragP, fragP->fr_fix + 2, 2, fragP->fr_symbol,
+ fragP->fr_offset + 2, 1, BFD_RELOC_16_PCREL);
+ fragP->fr_var = 0;
+ fragP->fr_fix += 4;
+ }
+ else if (fragP->fr_subtype == 9)
+ {
+ int offset = fragP->fr_fix;
-void
-md_convert_frag (abfd, sec, fragP)
- bfd *abfd;
- asection *sec;
- fragS *fragP;
-{
- /* printf ("call to md_convert_frag \n"); */
- abort ();
+ fragP->fr_literal[offset] = 0xfc;
+ fragP->fr_literal[offset + 1] = 0xff;
+
+ fix_new (fragP, fragP->fr_fix + 2, 4, fragP->fr_symbol,
+ fragP->fr_offset + 2, 1, BFD_RELOC_32_PCREL);
+ fragP->fr_var = 0;
+ fragP->fr_fix += 6;
+ }
+ else if (fragP->fr_subtype == 10)
+ {
+ fragP->fr_literal[fragP->fr_fix] = 0xca;
+ fix_new (fragP, fragP->fr_fix + 1, 1, fragP->fr_symbol,
+ fragP->fr_offset + 1, 1, BFD_RELOC_8_PCREL);
+ fragP->fr_var = 0;
+ fragP->fr_fix += 2;
+ }
+ else if (fragP->fr_subtype == 11)
+ {
+ int offset = fragP->fr_fix;
+
+ fragP->fr_literal[offset] = 0xcc;
+
+ fix_new (fragP, fragP->fr_fix + 1, 2, fragP->fr_symbol,
+ fragP->fr_offset + 1, 1, BFD_RELOC_16_PCREL);
+ fragP->fr_var = 0;
+ fragP->fr_fix += 3;
+ }
+ else if (fragP->fr_subtype == 12)
+ {
+ int offset = fragP->fr_fix;
+
+ fragP->fr_literal[offset] = 0xdc;
+
+ fix_new (fragP, fragP->fr_fix + 1, 4, fragP->fr_symbol,
+ fragP->fr_offset + 1, 1, BFD_RELOC_32_PCREL);
+ fragP->fr_var = 0;
+ fragP->fr_fix += 5;
+ }
+ else if (fragP->fr_subtype == 13)
+ {
+ fix_new (fragP, fragP->fr_fix + 2, 1, fragP->fr_symbol,
+ fragP->fr_offset + 2, 1, BFD_RELOC_8_PCREL);
+ fragP->fr_var = 0;
+ fragP->fr_fix += 3;
+ }
+ else if (fragP->fr_subtype == 14)
+ {
+ /* Reverse the condition of the first branch. */
+ int offset = fragP->fr_fix;
+ int opcode = fragP->fr_literal[offset + 1] & 0xff;
+
+ switch (opcode)
+ {
+ case 0xd0:
+ opcode = 0xd1;
+ break;
+ case 0xd1:
+ opcode = 0xd0;
+ break;
+ case 0xd2:
+ opcode = 0xdc;
+ break;
+ case 0xd3:
+ opcode = 0xdb;
+ break;
+ case 0xd4:
+ opcode = 0xda;
+ break;
+ case 0xd5:
+ opcode = 0xd9;
+ break;
+ case 0xd6:
+ opcode = 0xd8;
+ break;
+ case 0xd7:
+ opcode = 0xdd;
+ break;
+ case 0xd8:
+ opcode = 0xd6;
+ break;
+ case 0xd9:
+ opcode = 0xd5;
+ break;
+ case 0xda:
+ opcode = 0xd4;
+ break;
+ case 0xdb:
+ opcode = 0xd3;
+ break;
+ case 0xdc:
+ opcode = 0xd2;
+ break;
+ case 0xdd:
+ opcode = 0xd7;
+ break;
+ default:
+ abort ();
+ }
+ fragP->fr_literal[offset + 1] = opcode;
+
+ /* Create a fixup for the reversed conditional branch. */
+ sprintf (buf, ".%s_%ld", FAKE_LABEL_NAME, label_count++);
+ fix_new (fragP, fragP->fr_fix + 2, 1,
+ symbol_new (buf, sec, 0, fragP->fr_next),
+ fragP->fr_offset + 2, 1, BFD_RELOC_8_PCREL);
+
+ /* Now create the unconditional branch + fixup to the
+ final target. */
+ fragP->fr_literal[offset + 3] = 0xcc;
+ fix_new (fragP, fragP->fr_fix + 4, 2, fragP->fr_symbol,
+ fragP->fr_offset + 1, 1, BFD_RELOC_16_PCREL);
+ fragP->fr_var = 0;
+ fragP->fr_fix += 6;
+ }
+ else if (fragP->fr_subtype == 15)
+ {
+ /* Reverse the condition of the first branch. */
+ int offset = fragP->fr_fix;
+ int opcode = fragP->fr_literal[offset + 1] & 0xff;
+
+ switch (opcode)
+ {
+ case 0xd0:
+ opcode = 0xd1;
+ break;
+ case 0xd1:
+ opcode = 0xd0;
+ break;
+ case 0xd2:
+ opcode = 0xdc;
+ break;
+ case 0xd3:
+ opcode = 0xdb;
+ break;
+ case 0xd4:
+ opcode = 0xda;
+ break;
+ case 0xd5:
+ opcode = 0xd9;
+ break;
+ case 0xd6:
+ opcode = 0xd8;
+ break;
+ case 0xd7:
+ opcode = 0xdd;
+ break;
+ case 0xd8:
+ opcode = 0xd6;
+ break;
+ case 0xd9:
+ opcode = 0xd5;
+ break;
+ case 0xda:
+ opcode = 0xd4;
+ break;
+ case 0xdb:
+ opcode = 0xd3;
+ break;
+ case 0xdc:
+ opcode = 0xd2;
+ break;
+ case 0xdd:
+ opcode = 0xd7;
+ break;
+ default:
+ abort ();
+ }
+ fragP->fr_literal[offset + 1] = opcode;
+
+ /* Create a fixup for the reversed conditional branch. */
+ sprintf (buf, ".%s_%ld", FAKE_LABEL_NAME, label_count++);
+ fix_new (fragP, fragP->fr_fix + 2, 1,
+ symbol_new (buf, sec, 0, fragP->fr_next),
+ fragP->fr_offset + 2, 1, BFD_RELOC_8_PCREL);
+
+ /* Now create the unconditional branch + fixup to the
+ final target. */
+ fragP->fr_literal[offset + 3] = 0xdc;
+ fix_new (fragP, fragP->fr_fix + 4, 4, fragP->fr_symbol,
+ fragP->fr_offset + 1, 1, BFD_RELOC_32_PCREL);
+ fragP->fr_var = 0;
+ fragP->fr_fix += 8;
+ }
+ else
+ abort ();
}
valueT
-md_section_align (seg, addr)
- asection *seg;
- valueT addr;
+md_section_align (asection *seg, valueT addr)
{
int align = bfd_get_section_alignment (stdoutput, seg);
+
return ((addr + (1 << align) - 1) & (-1 << align));
}
void
-md_begin ()
+md_begin (void)
{
char *prev_name = "";
- register const struct mn10300_opcode *op;
+ const struct mn10300_opcode *op;
- mn10300_hash = hash_new();
+ mn10300_hash = hash_new ();
/* Insert unique names into hash table. The MN10300 instruction set
has many identical opcode names that have different opcodes based
on the operands. This hash table then provides a quick index to
the first opcode with a particular name in the opcode table. */
- op = mn10300_opcodes;
+ op = mn10300_opcodes;
while (op->name)
{
- if (strcmp (prev_name, op->name))
+ if (strcmp (prev_name, op->name))
{
prev_name = (char *) op->name;
hash_insert (mn10300_hash, op->name, (char *) op);
}
op++;
}
+
+ /* Set the default machine type. */
+#ifdef TE_LINUX
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_mn10300, AM33_2))
+ as_warn (_("could not set architecture and machine"));
+
+ current_machine = AM33_2;
+#else
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_mn10300, MN103))
+ as_warn (_("could not set architecture and machine"));
+
+ current_machine = MN103;
+#endif
}
-void
-md_assemble (str)
- char *str;
+static symbolS *GOT_symbol;
+
+static inline int
+mn10300_PIC_related_p (symbolS *sym)
{
- char *s;
- struct mn10300_opcode *opcode;
- struct mn10300_opcode *next_opcode;
- const unsigned char *opindex_ptr;
- int next_opindex;
- unsigned long insn, extension, size;
- char *f;
- int i;
- int match;
- bfd_reloc_code_real_type reloc;
+ expressionS *exp;
- /* Get the opcode. */
- for (s = str; *s != '\0' && ! isspace (*s); s++)
- ;
- if (*s != '\0')
- *s++ = '\0';
+ if (! sym)
+ return 0;
- /* find the first opcode with the proper name */
- opcode = (struct mn10300_opcode *)hash_find (mn10300_hash, str);
- if (opcode == NULL)
+ if (sym == GOT_symbol)
+ return 1;
+
+ exp = symbol_get_value_expression (sym);
+
+ return (exp->X_op == O_PIC_reloc
+ || mn10300_PIC_related_p (exp->X_add_symbol)
+ || mn10300_PIC_related_p (exp->X_op_symbol));
+}
+
+static inline int
+mn10300_check_fixup (struct mn10300_fixup *fixup)
+{
+ expressionS *exp = &fixup->exp;
+
+ repeat:
+ switch (exp->X_op)
{
- as_bad ("Unrecognized opcode: `%s'", str);
- return;
+ case O_add:
+ case O_subtract: /* If we're sufficiently unlucky that the label
+ and the expression that references it happen
+ to end up in different frags, the subtract
+ won't be simplified within expression(). */
+ /* The PIC-related operand must be the first operand of a sum. */
+ if (exp != &fixup->exp || mn10300_PIC_related_p (exp->X_op_symbol))
+ return 1;
+
+ if (exp->X_add_symbol && exp->X_add_symbol == GOT_symbol)
+ fixup->reloc = BFD_RELOC_32_GOT_PCREL;
+
+ exp = symbol_get_value_expression (exp->X_add_symbol);
+ goto repeat;
+
+ case O_symbol:
+ if (exp->X_add_symbol && exp->X_add_symbol == GOT_symbol)
+ fixup->reloc = BFD_RELOC_32_GOT_PCREL;
+ break;
+
+ case O_PIC_reloc:
+ fixup->reloc = exp->X_md;
+ exp->X_op = O_symbol;
+ if (fixup->reloc == BFD_RELOC_32_PLT_PCREL
+ && fixup->opindex >= 0
+ && (mn10300_operands[fixup->opindex].flags
+ & MN10300_OPERAND_RELAX))
+ return 1;
+ break;
+
+ default:
+ return (mn10300_PIC_related_p (exp->X_add_symbol)
+ || mn10300_PIC_related_p (exp->X_op_symbol));
}
- str = s;
- while (isspace (*str))
- ++str;
+ return 0;
+}
- input_line_pointer = str;
+void
+mn10300_cons_fix_new (fragS *frag, int off, int size, expressionS *exp)
+{
+ struct mn10300_fixup fixup;
+
+ fixup.opindex = -1;
+ fixup.exp = *exp;
+ fixup.reloc = BFD_RELOC_UNUSED;
+
+ mn10300_check_fixup (&fixup);
+
+ if (fixup.reloc == BFD_RELOC_MN10300_GOT32)
+ switch (size)
+ {
+ case 2:
+ fixup.reloc = BFD_RELOC_MN10300_GOT16;
+ break;
+
+ case 3:
+ fixup.reloc = BFD_RELOC_MN10300_GOT24;
+ break;
+
+ case 4:
+ break;
+
+ default:
+ goto error;
+ }
+ else if (fixup.reloc == BFD_RELOC_UNUSED)
+ switch (size)
+ {
+ case 1:
+ fixup.reloc = BFD_RELOC_8;
+ break;
+
+ case 2:
+ fixup.reloc = BFD_RELOC_16;
+ break;
+
+ case 3:
+ fixup.reloc = BFD_RELOC_24;
+ break;
+
+ case 4:
+ fixup.reloc = BFD_RELOC_32;
+ break;
+
+ default:
+ goto error;
+ }
+ else if (size != 4)
+ {
+ error:
+ as_bad (_("unsupported BFD relocation size %u"), size);
+ fixup.reloc = BFD_RELOC_UNUSED;
+ }
+
+ fix_new_exp (frag, off, size, &fixup.exp, 0, fixup.reloc);
+}
- for(;;)
+static bfd_boolean
+check_operand (const struct mn10300_operand *operand,
+ offsetT val)
+{
+ /* No need to check 32bit operands for a bit. Note that
+ MN10300_OPERAND_SPLIT is an implicit 32bit operand. */
+ if (operand->bits != 32
+ && (operand->flags & MN10300_OPERAND_SPLIT) == 0)
{
- const char *errmsg = NULL;
- int op_idx;
- char *hold;
- int extra_shift = 0;
+ long min, max;
+ offsetT test;
+ int bits;
- fc = 0;
- match = 0;
- next_opindex = 0;
- insn = opcode->opcode;
- extension = 0;
- for (op_idx = 1, opindex_ptr = opcode->operands;
- *opindex_ptr != 0;
- opindex_ptr++, op_idx++)
+ bits = operand->bits;
+ if (operand->flags & MN10300_OPERAND_24BIT)
+ bits = 24;
+
+ if ((operand->flags & MN10300_OPERAND_SIGNED) != 0)
{
- const struct mn10300_operand *operand;
- expressionS ex;
+ max = (1 << (bits - 1)) - 1;
+ min = - (1 << (bits - 1));
+ }
+ else
+ {
+ max = (1 << bits) - 1;
+ min = 0;
+ }
- if (next_opindex == 0)
- {
- operand = &mn10300_operands[*opindex_ptr];
- }
- else
- {
- operand = &mn10300_operands[next_opindex];
- next_opindex = 0;
- }
+ test = val;
- errmsg = NULL;
+ if (test < (offsetT) min || test > (offsetT) max)
+ return FALSE;
+ }
+ return TRUE;
+}
- while (*str == ' ' || *str == ',' || *str == '[' || *str == ']')
- ++str;
+/* Insert an operand value into an instruction. */
- /* Gather the operand. */
- hold = input_line_pointer;
- input_line_pointer = str;
+static void
+mn10300_insert_operand (unsigned long *insnp,
+ unsigned long *extensionp,
+ const struct mn10300_operand *operand,
+ offsetT val,
+ char *file,
+ unsigned int line,
+ unsigned int shift)
+{
+ /* No need to check 32bit operands for a bit. Note that
+ MN10300_OPERAND_SPLIT is an implicit 32bit operand. */
+ if (operand->bits != 32
+ && (operand->flags & MN10300_OPERAND_SPLIT) == 0)
+ {
+ long min, max;
+ offsetT test;
+ int bits;
- if (operand->flags & MN10300_OPERAND_PAREN)
- {
- if (*input_line_pointer != ')' && *input_line_pointer != '(')
- {
- input_line_pointer = hold;
- str = hold;
- goto error;
- }
- input_line_pointer++;
- goto keep_going;
- }
- /* See if we can match the operands. */
- else if (operand->flags & MN10300_OPERAND_DREG)
- {
- if (!data_register_name (&ex))
- {
- input_line_pointer = hold;
- str = hold;
- goto error;
+ bits = operand->bits;
+ if (operand->flags & MN10300_OPERAND_24BIT)
+ bits = 24;
+
+ if ((operand->flags & MN10300_OPERAND_SIGNED) != 0)
+ {
+ max = (1 << (bits - 1)) - 1;
+ min = - (1 << (bits - 1));
+ }
+ else
+ {
+ max = (1 << bits) - 1;
+ min = 0;
+ }
+
+ test = val;
+
+ if (test < (offsetT) min || test > (offsetT) max)
+ as_warn_value_out_of_range (_("operand"), test, (offsetT) min, (offsetT) max, file, line);
+ }
+
+ if ((operand->flags & MN10300_OPERAND_SPLIT) != 0)
+ {
+ *insnp |= (val >> (32 - operand->bits)) & ((1 << operand->bits) - 1);
+ *extensionp |= ((val & ((1 << (32 - operand->bits)) - 1))
+ << operand->shift);
+ }
+ else if ((operand->flags & MN10300_OPERAND_24BIT) != 0)
+ {
+ *insnp |= (val >> (24 - operand->bits)) & ((1 << operand->bits) - 1);
+ *extensionp |= ((val & ((1 << (24 - operand->bits)) - 1))
+ << operand->shift);
+ }
+ else if ((operand->flags & (MN10300_OPERAND_FSREG | MN10300_OPERAND_FDREG)))
+ {
+ /* See devo/opcodes/m10300-opc.c just before #define FSM0 for an
+ explanation of these variables. Note that FMT-implied shifts
+ are not taken into account for FP registers. */
+ unsigned long mask_low, mask_high;
+ int shl_low, shr_high, shl_high;
+
+ switch (operand->bits)
+ {
+ case 5:
+ /* Handle regular FP registers. */
+ if (operand->shift >= 0)
+ {
+ /* This is an `m' register. */
+ shl_low = operand->shift;
+ shl_high = 8 + (8 & shl_low) + (shl_low & 4) / 4;
+ }
+ else
+ {
+ /* This is an `n' register. */
+ shl_low = -operand->shift;
+ shl_high = shl_low / 4;
+ }
+
+ mask_low = 0x0f;
+ mask_high = 0x10;
+ shr_high = 4;
+ break;
+
+ case 3:
+ /* Handle accumulators. */
+ shl_low = -operand->shift;
+ shl_high = 0;
+ mask_low = 0x03;
+ mask_high = 0x04;
+ shr_high = 2;
+ break;
+
+ default:
+ abort ();
+ }
+ *insnp |= ((((val & mask_high) >> shr_high) << shl_high)
+ | ((val & mask_low) << shl_low));
+ }
+ else if ((operand->flags & MN10300_OPERAND_EXTENDED) == 0)
+ {
+ *insnp |= (((long) val & ((1 << operand->bits) - 1))
+ << (operand->shift + shift));
+
+ if ((operand->flags & MN10300_OPERAND_REPEATED) != 0)
+ *insnp |= (((long) val & ((1 << operand->bits) - 1))
+ << (operand->shift + shift + operand->bits));
+ }
+ else
+ {
+ *extensionp |= (((long) val & ((1 << operand->bits) - 1))
+ << (operand->shift + shift));
+
+ if ((operand->flags & MN10300_OPERAND_REPEATED) != 0)
+ *extensionp |= (((long) val & ((1 << operand->bits) - 1))
+ << (operand->shift + shift + operand->bits));
+ }
+}
+
+void
+md_assemble (char *str)
+{
+ char *s;
+ struct mn10300_opcode *opcode;
+ struct mn10300_opcode *next_opcode;
+ const unsigned char *opindex_ptr;
+ int next_opindex, relaxable;
+ unsigned long insn, extension, size = 0;
+ char *f;
+ int i;
+ int match;
+
+ /* Get the opcode. */
+ for (s = str; *s != '\0' && !ISSPACE (*s); s++)
+ ;
+ if (*s != '\0')
+ *s++ = '\0';
+
+ /* Find the first opcode with the proper name. */
+ opcode = (struct mn10300_opcode *) hash_find (mn10300_hash, str);
+ if (opcode == NULL)
+ {
+ as_bad (_("Unrecognized opcode: `%s'"), str);
+ return;
+ }
+
+ str = s;
+ while (ISSPACE (*str))
+ ++str;
+
+ input_line_pointer = str;
+
+ for (;;)
+ {
+ const char *errmsg;
+ int op_idx;
+ char *hold;
+ int extra_shift = 0;
+
+ errmsg = _("Invalid opcode/operands");
+
+ /* Reset the array of register operands. */
+ memset (mn10300_reg_operands, -1, sizeof (mn10300_reg_operands));
+
+ relaxable = 0;
+ fc = 0;
+ match = 0;
+ next_opindex = 0;
+ insn = opcode->opcode;
+ extension = 0;
+
+ /* If the instruction is not available on the current machine
+ then it can not possibly match. */
+ if (opcode->machine
+ && !(opcode->machine == AM33_2 && HAVE_AM33_2)
+ && !(opcode->machine == AM33 && HAVE_AM33)
+ && !(opcode->machine == AM30 && HAVE_AM30))
+ goto error;
+
+ for (op_idx = 1, opindex_ptr = opcode->operands;
+ *opindex_ptr != 0;
+ opindex_ptr++, op_idx++)
+ {
+ const struct mn10300_operand *operand;
+ expressionS ex;
+
+ if (next_opindex == 0)
+ {
+ operand = &mn10300_operands[*opindex_ptr];
+ }
+ else
+ {
+ operand = &mn10300_operands[next_opindex];
+ next_opindex = 0;
+ }
+
+ while (*str == ' ' || *str == ',')
+ ++str;
+
+ if (operand->flags & MN10300_OPERAND_RELAX)
+ relaxable = 1;
+
+ /* Gather the operand. */
+ hold = input_line_pointer;
+ input_line_pointer = str;
+
+ if (operand->flags & MN10300_OPERAND_PAREN)
+ {
+ if (*input_line_pointer != ')' && *input_line_pointer != '(')
+ {
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+ input_line_pointer++;
+ goto keep_going;
+ }
+ /* See if we can match the operands. */
+ else if (operand->flags & MN10300_OPERAND_DREG)
+ {
+ if (!data_register_name (&ex))
+ {
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
}
}
else if (operand->flags & MN10300_OPERAND_AREG)
char *start = input_line_pointer;
char c = get_symbol_end ();
- if (strcmp (start, "sp") != 0)
+ if (strcasecmp (start, "sp") != 0)
{
*input_line_pointer = c;
input_line_pointer = hold;
*input_line_pointer = c;
goto keep_going;
}
+ else if (operand->flags & MN10300_OPERAND_RREG)
+ {
+ if (!r_register_name (&ex))
+ {
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+ }
+ else if (operand->flags & MN10300_OPERAND_XRREG)
+ {
+ if (!xr_register_name (&ex))
+ {
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+ }
+ else if (operand->flags & MN10300_OPERAND_FSREG)
+ {
+ if (!float_register_name (&ex))
+ {
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+ }
+ else if (operand->flags & MN10300_OPERAND_FDREG)
+ {
+ if (!double_register_name (&ex))
+ {
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+ }
+ else if (operand->flags & MN10300_OPERAND_FPCR)
+ {
+ char *start = input_line_pointer;
+ char c = get_symbol_end ();
+
+ if (strcasecmp (start, "fpcr") != 0)
+ {
+ *input_line_pointer = c;
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+ *input_line_pointer = c;
+ goto keep_going;
+ }
+ else if (operand->flags & MN10300_OPERAND_USP)
+ {
+ char *start = input_line_pointer;
+ char c = get_symbol_end ();
+
+ if (strcasecmp (start, "usp") != 0)
+ {
+ *input_line_pointer = c;
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+ *input_line_pointer = c;
+ goto keep_going;
+ }
+ else if (operand->flags & MN10300_OPERAND_SSP)
+ {
+ char *start = input_line_pointer;
+ char c = get_symbol_end ();
+
+ if (strcasecmp (start, "ssp") != 0)
+ {
+ *input_line_pointer = c;
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+ *input_line_pointer = c;
+ goto keep_going;
+ }
+ else if (operand->flags & MN10300_OPERAND_MSP)
+ {
+ char *start = input_line_pointer;
+ char c = get_symbol_end ();
+
+ if (strcasecmp (start, "msp") != 0)
+ {
+ *input_line_pointer = c;
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+ *input_line_pointer = c;
+ goto keep_going;
+ }
+ else if (operand->flags & MN10300_OPERAND_PC)
+ {
+ char *start = input_line_pointer;
+ char c = get_symbol_end ();
+
+ if (strcasecmp (start, "pc") != 0)
+ {
+ *input_line_pointer = c;
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+ *input_line_pointer = c;
+ goto keep_going;
+ }
+ else if (operand->flags & MN10300_OPERAND_EPSW)
+ {
+ char *start = input_line_pointer;
+ char c = get_symbol_end ();
+
+ if (strcasecmp (start, "epsw") != 0)
+ {
+ *input_line_pointer = c;
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+ *input_line_pointer = c;
+ goto keep_going;
+ }
+ else if (operand->flags & MN10300_OPERAND_PLUS)
+ {
+ if (*input_line_pointer != '+')
+ {
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+ input_line_pointer++;
+ goto keep_going;
+ }
else if (operand->flags & MN10300_OPERAND_PSW)
{
char *start = input_line_pointer;
char c = get_symbol_end ();
- if (strcmp (start, "psw") != 0)
+ if (strcasecmp (start, "psw") != 0)
{
*input_line_pointer = c;
input_line_pointer = hold;
char *start = input_line_pointer;
char c = get_symbol_end ();
- if (strcmp (start, "mdr") != 0)
+ if (strcasecmp (start, "mdr") != 0)
{
*input_line_pointer = c;
input_line_pointer = hold;
*input_line_pointer = c;
goto keep_going;
}
+ else if (operand->flags & MN10300_OPERAND_REG_LIST)
+ {
+ unsigned int value = 0;
+ if (*input_line_pointer != '[')
+ {
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+
+ /* Eat the '['. */
+ input_line_pointer++;
+
+ /* We used to reject a null register list here; however,
+ we accept it now so the compiler can emit "call"
+ instructions for all calls to named functions.
+
+ The linker can then fill in the appropriate bits for the
+ register list and stack size or change the instruction
+ into a "calls" if using "call" is not profitable. */
+ while (*input_line_pointer != ']')
+ {
+ char *start;
+ char c;
+
+ if (*input_line_pointer == ',')
+ input_line_pointer++;
+
+ start = input_line_pointer;
+ c = get_symbol_end ();
+
+ if (strcasecmp (start, "d2") == 0)
+ {
+ value |= 0x80;
+ *input_line_pointer = c;
+ }
+ else if (strcasecmp (start, "d3") == 0)
+ {
+ value |= 0x40;
+ *input_line_pointer = c;
+ }
+ else if (strcasecmp (start, "a2") == 0)
+ {
+ value |= 0x20;
+ *input_line_pointer = c;
+ }
+ else if (strcasecmp (start, "a3") == 0)
+ {
+ value |= 0x10;
+ *input_line_pointer = c;
+ }
+ else if (strcasecmp (start, "other") == 0)
+ {
+ value |= 0x08;
+ *input_line_pointer = c;
+ }
+ else if (HAVE_AM33
+ && strcasecmp (start, "exreg0") == 0)
+ {
+ value |= 0x04;
+ *input_line_pointer = c;
+ }
+ else if (HAVE_AM33
+ && strcasecmp (start, "exreg1") == 0)
+ {
+ value |= 0x02;
+ *input_line_pointer = c;
+ }
+ else if (HAVE_AM33
+ && strcasecmp (start, "exother") == 0)
+ {
+ value |= 0x01;
+ *input_line_pointer = c;
+ }
+ else if (HAVE_AM33
+ && strcasecmp (start, "all") == 0)
+ {
+ value |= 0xff;
+ *input_line_pointer = c;
+ }
+ else
+ {
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+ }
+ input_line_pointer++;
+ mn10300_insert_operand (& insn, & extension, operand,
+ value, NULL, 0, 0);
+ goto keep_going;
+
+ }
else if (data_register_name (&ex))
{
input_line_pointer = hold;
str = hold;
goto error;
}
+ else if (HAVE_AM33 && r_register_name (&ex))
+ {
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+ else if (HAVE_AM33 && xr_register_name (&ex))
+ {
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+ else if (HAVE_AM33_2 && float_register_name (&ex))
+ {
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+ else if (HAVE_AM33_2 && double_register_name (&ex))
+ {
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
else if (*str == ')' || *str == '(')
{
input_line_pointer = hold;
expression (&ex);
}
- switch (ex.X_op)
+ switch (ex.X_op)
{
- case O_illegal:
- errmsg = "illegal operand";
- goto error;
- case O_absent:
- errmsg = "missing operand";
- goto error;
- case O_register:
- if (operand->flags & (MN10300_OPERAND_DREG
- | MN10300_OPERAND_AREG) == 0)
- {
- input_line_pointer = hold;
- str = hold;
- goto error;
- }
-
- if (opcode->format == FMT_D1 || opcode->format == FMT_S1)
- extra_shift = 8;
- else if (opcode->format == FMT_D2 || opcode->format == FMT_D4
- || opcode->format == FMT_S2 || opcode->format == FMT_S4
- || opcode->format == FMT_S6 || opcode->format == FMT_D5)
- extra_shift = 16;
- else
- extra_shift = 0;
-
- mn10300_insert_operand (&insn, &extension, operand,
- ex.X_add_number, (char *) NULL,
- 0, extra_shift);
-
- break;
+ case O_illegal:
+ errmsg = _("illegal operand");
+ goto error;
+ case O_absent:
+ errmsg = _("missing operand");
+ goto error;
+ case O_register:
+ {
+ int mask;
+
+ mask = MN10300_OPERAND_DREG | MN10300_OPERAND_AREG;
+ if (HAVE_AM33)
+ mask |= MN10300_OPERAND_RREG | MN10300_OPERAND_XRREG;
+ if (HAVE_AM33_2)
+ mask |= MN10300_OPERAND_FSREG | MN10300_OPERAND_FDREG;
+ if ((operand->flags & mask) == 0)
+ {
+ input_line_pointer = hold;
+ str = hold;
+ goto error;
+ }
+
+ if (opcode->format == FMT_D1 || opcode->format == FMT_S1)
+ extra_shift = 8;
+ else if (opcode->format == FMT_D2
+ || opcode->format == FMT_D4
+ || opcode->format == FMT_S2
+ || opcode->format == FMT_S4
+ || opcode->format == FMT_S6
+ || opcode->format == FMT_D5)
+ extra_shift = 16;
+ else if (opcode->format == FMT_D7)
+ extra_shift = 8;
+ else if (opcode->format == FMT_D8 || opcode->format == FMT_D9)
+ extra_shift = 8;
+ else
+ extra_shift = 0;
+
+ mn10300_insert_operand (& insn, & extension, operand,
+ ex.X_add_number, NULL,
+ 0, extra_shift);
+
+ /* And note the register number in the register array. */
+ mn10300_reg_operands[op_idx - 1] = ex.X_add_number;
+ break;
+ }
case O_constant:
/* If this operand can be promoted, and it doesn't
fit into the allocated bitfield for this insn,
then promote it (ie this opcode does not match). */
- if (operand->flags & MN10300_OPERAND_PROMOTE
- && ! check_operand (insn, operand, ex.X_add_number))
+ if (operand->flags
+ & (MN10300_OPERAND_PROMOTE | MN10300_OPERAND_RELAX)
+ && !check_operand (operand, ex.X_add_number))
{
input_line_pointer = hold;
str = hold;
goto error;
}
- mn10300_insert_operand (&insn, &extension, operand,
- ex.X_add_number, (char *) NULL,
- 0, 0);
+ mn10300_insert_operand (& insn, & extension, operand,
+ ex.X_add_number, NULL, 0, 0);
break;
default:
/* We need to generate a fixup for this expression. */
if (fc >= MAX_INSN_FIXUPS)
- as_fatal ("too many fixups");
+ as_fatal (_("too many fixups"));
fixups[fc].exp = ex;
fixups[fc].opindex = *opindex_ptr;
fixups[fc].reloc = BFD_RELOC_UNUSED;
+ if (mn10300_check_fixup (& fixups[fc]))
+ goto error;
++fc;
break;
}
str = input_line_pointer;
input_line_pointer = hold;
- while (*str == ' ' || *str == ',' || *str == '[' || *str == ']')
+ while (*str == ' ' || *str == ',')
++str;
-
}
/* Make sure we used all the operands! */
if (*str != ',')
match = 1;
+ /* If this instruction has registers that must not match, verify
+ that they do indeed not match. */
+ if (opcode->no_match_operands)
+ {
+ /* Look at each operand to see if it's marked. */
+ for (i = 0; i < MN10300_MAX_OPERANDS; i++)
+ {
+ if ((1 << i) & opcode->no_match_operands)
+ {
+ int j;
+
+ /* operand I is marked. Check that it does not match any
+ operands > I which are marked. */
+ for (j = i + 1; j < MN10300_MAX_OPERANDS; j++)
+ {
+ if (((1 << j) & opcode->no_match_operands)
+ && mn10300_reg_operands[i] == mn10300_reg_operands[j])
+ {
+ errmsg = _("Invalid register specification.");
+ match = 0;
+ goto error;
+ }
+ }
+ }
+ }
+ }
+
error:
if (match == 0)
- {
+ {
next_opcode = opcode + 1;
- if (next_opcode->opcode != 0 && !strcmp(next_opcode->name, opcode->name))
+ if (!strcmp (next_opcode->name, opcode->name))
{
opcode = next_opcode;
continue;
}
-
+
as_bad ("%s", errmsg);
return;
- }
+ }
break;
}
-
- while (isspace (*str))
+
+ while (ISSPACE (*str))
++str;
if (*str != '\0')
- as_bad ("junk at end of line: `%s'", str);
+ as_bad (_("junk at end of line: `%s'"), str);
input_line_pointer = str;
if (opcode->format == FMT_S2 || opcode->format == FMT_D1)
size = 3;
+ if (opcode->format == FMT_D6)
+ size = 3;
+
+ if (opcode->format == FMT_D7 || opcode->format == FMT_D10)
+ size = 4;
+
+ if (opcode->format == FMT_D8)
+ size = 6;
+
+ if (opcode->format == FMT_D9)
+ size = 7;
+
if (opcode->format == FMT_S4)
size = 5;
if (opcode->format == FMT_D2)
size = 4;
+ if (opcode->format == FMT_D3)
+ size = 5;
+
if (opcode->format == FMT_D4)
size = 6;
- /* Write out the instruction. */
+ if (relaxable && fc > 0)
+ {
+ /* On a 64-bit host the size of an 'int' is not the same
+ as the size of a pointer, so we need a union to convert
+ the opindex field of the fr_cgen structure into a char *
+ so that it can be stored in the frag. We do not have
+ to worry about loosing accuracy as we are not going to
+ be even close to the 32bit limit of the int. */
+ union
+ {
+ int opindex;
+ char * ptr;
+ }
+ opindex_converter;
+ int type;
+
+ /* We want to anchor the line info to the previous frag (if
+ there isn't one, create it), so that, when the insn is
+ resized, we still get the right address for the beginning of
+ the region. */
+ f = frag_more (0);
+ dwarf2_emit_insn (0);
+
+ /* bCC */
+ if (size == 2)
+ {
+ /* Handle bra specially. Basically treat it like jmp so
+ that we automatically handle 8, 16 and 32 bit offsets
+ correctly as well as jumps to an undefined address.
+
+ It is also important to not treat it like other bCC
+ instructions since the long forms of bra is different
+ from other bCC instructions. */
+ if (opcode->opcode == 0xca00)
+ type = 10;
+ else
+ type = 0;
+ }
+ /* call */
+ else if (size == 5)
+ type = 6;
+ /* calls */
+ else if (size == 4)
+ type = 8;
+ /* jmp */
+ else if (size == 3 && opcode->opcode == 0xcc0000)
+ type = 10;
+ else if (size == 3 && (opcode->opcode & 0xfff000) == 0xf8d000)
+ type = 13;
+ /* bCC (uncommon cases) */
+ else
+ type = 3;
+
+ opindex_converter.opindex = fixups[0].opindex;
+ f = frag_var (rs_machine_dependent, 8, 8 - size, type,
+ fixups[0].exp.X_add_symbol,
+ fixups[0].exp.X_add_number,
+ opindex_converter.ptr);
+
+ /* This is pretty hokey. We basically just care about the
+ opcode, so we have to write out the first word big endian.
+
+ The exception is "call", which has two operands that we
+ care about.
+
+ The first operand (the register list) happens to be in the
+ first instruction word, and will be in the right place if
+ we output the first word in big endian mode.
+
+ The second operand (stack size) is in the extension word,
+ and we want it to appear as the first character in the extension
+ word (as it appears in memory). Luckily, writing the extension
+ word in big endian format will do what we want. */
+ number_to_chars_bigendian (f, insn, size > 4 ? 4 : size);
+ if (size > 8)
+ {
+ number_to_chars_bigendian (f + 4, extension, 4);
+ number_to_chars_bigendian (f + 8, 0, size - 8);
+ }
+ else if (size > 4)
+ number_to_chars_bigendian (f + 4, extension, size - 4);
+ }
+ else
+ {
+ /* Allocate space for the instruction. */
+ f = frag_more (size);
+
+ /* Fill in bytes for the instruction. Note that opcode fields
+ are written big-endian, 16 & 32bit immediates are written
+ little endian. Egad. */
+ if (opcode->format == FMT_S0
+ || opcode->format == FMT_S1
+ || opcode->format == FMT_D0
+ || opcode->format == FMT_D6
+ || opcode->format == FMT_D7
+ || opcode->format == FMT_D10
+ || opcode->format == FMT_D1)
+ {
+ number_to_chars_bigendian (f, insn, size);
+ }
+ else if (opcode->format == FMT_S2
+ && opcode->opcode != 0xdf0000
+ && opcode->opcode != 0xde0000)
+ {
+ /* A format S2 instruction that is _not_ "ret" and "retf". */
+ number_to_chars_bigendian (f, (insn >> 16) & 0xff, 1);
+ number_to_chars_littleendian (f + 1, insn & 0xffff, 2);
+ }
+ else if (opcode->format == FMT_S2)
+ {
+ /* This must be a ret or retf, which is written entirely in
+ big-endian format. */
+ number_to_chars_bigendian (f, insn, 3);
+ }
+ else if (opcode->format == FMT_S4
+ && opcode->opcode != 0xdc000000)
+ {
+ /* This must be a format S4 "call" instruction. What a pain. */
+ unsigned long temp = (insn >> 8) & 0xffff;
+ number_to_chars_bigendian (f, (insn >> 24) & 0xff, 1);
+ number_to_chars_littleendian (f + 1, temp, 2);
+ number_to_chars_bigendian (f + 3, insn & 0xff, 1);
+ number_to_chars_bigendian (f + 4, extension & 0xff, 1);
+ }
+ else if (opcode->format == FMT_S4)
+ {
+ /* This must be a format S4 "jmp" instruction. */
+ unsigned long temp = ((insn & 0xffffff) << 8) | (extension & 0xff);
+ number_to_chars_bigendian (f, (insn >> 24) & 0xff, 1);
+ number_to_chars_littleendian (f + 1, temp, 4);
+ }
+ else if (opcode->format == FMT_S6)
+ {
+ unsigned long temp = ((insn & 0xffffff) << 8)
+ | ((extension >> 16) & 0xff);
+ number_to_chars_bigendian (f, (insn >> 24) & 0xff, 1);
+ number_to_chars_littleendian (f + 1, temp, 4);
+ number_to_chars_bigendian (f + 5, (extension >> 8) & 0xff, 1);
+ number_to_chars_bigendian (f + 6, extension & 0xff, 1);
+ }
+ else if (opcode->format == FMT_D2
+ && opcode->opcode != 0xfaf80000
+ && opcode->opcode != 0xfaf00000
+ && opcode->opcode != 0xfaf40000)
+ {
+ /* A format D2 instruction where the 16bit immediate is
+ really a single 16bit value, not two 8bit values. */
+ number_to_chars_bigendian (f, (insn >> 16) & 0xffff, 2);
+ number_to_chars_littleendian (f + 2, insn & 0xffff, 2);
+ }
+ else if (opcode->format == FMT_D2)
+ {
+ /* A format D2 instruction where the 16bit immediate
+ is really two 8bit immediates. */
+ number_to_chars_bigendian (f, insn, 4);
+ }
+ else if (opcode->format == FMT_D3)
+ {
+ number_to_chars_bigendian (f, (insn >> 16) & 0xffff, 2);
+ number_to_chars_littleendian (f + 2, insn & 0xffff, 2);
+ number_to_chars_bigendian (f + 4, extension & 0xff, 1);
+ }
+ else if (opcode->format == FMT_D4)
+ {
+ unsigned long temp = ((insn & 0xffff) << 16) | (extension & 0xffff);
+
+ number_to_chars_bigendian (f, (insn >> 16) & 0xffff, 2);
+ number_to_chars_littleendian (f + 2, temp, 4);
+ }
+ else if (opcode->format == FMT_D5)
+ {
+ unsigned long temp = (((insn & 0xffff) << 16)
+ | ((extension >> 8) & 0xffff));
+
+ number_to_chars_bigendian (f, (insn >> 16) & 0xffff, 2);
+ number_to_chars_littleendian (f + 2, temp, 4);
+ number_to_chars_bigendian (f + 6, extension & 0xff, 1);
+ }
+ else if (opcode->format == FMT_D8)
+ {
+ unsigned long temp = ((insn & 0xff) << 16) | (extension & 0xffff);
+
+ number_to_chars_bigendian (f, (insn >> 8) & 0xffffff, 3);
+ number_to_chars_bigendian (f + 3, (temp & 0xff), 1);
+ number_to_chars_littleendian (f + 4, temp >> 8, 2);
+ }
+ else if (opcode->format == FMT_D9)
+ {
+ unsigned long temp = ((insn & 0xff) << 24) | (extension & 0xffffff);
+
+ number_to_chars_bigendian (f, (insn >> 8) & 0xffffff, 3);
+ number_to_chars_littleendian (f + 3, temp, 4);
+ }
+
+ /* Create any fixups. */
+ for (i = 0; i < fc; i++)
+ {
+ const struct mn10300_operand *operand;
+ int reloc_size;
+
+ operand = &mn10300_operands[fixups[i].opindex];
+ if (fixups[i].reloc != BFD_RELOC_UNUSED
+ && fixups[i].reloc != BFD_RELOC_32_GOT_PCREL
+ && fixups[i].reloc != BFD_RELOC_32_GOTOFF
+ && fixups[i].reloc != BFD_RELOC_32_PLT_PCREL
+ && fixups[i].reloc != BFD_RELOC_MN10300_GOT32)
+ {
+ reloc_howto_type *reloc_howto;
+ int offset;
+ fixS *fixP;
+
+ reloc_howto = bfd_reloc_type_lookup (stdoutput,
+ fixups[i].reloc);
+
+ if (!reloc_howto)
+ abort ();
+
+ reloc_size = bfd_get_reloc_size (reloc_howto);
+
+ if (reloc_size < 1 || reloc_size > 4)
+ abort ();
+
+ offset = 4 - size;
+ fixP = fix_new_exp (frag_now, f - frag_now->fr_literal + offset,
+ reloc_size, &fixups[i].exp,
+ reloc_howto->pc_relative,
+ fixups[i].reloc);
+ }
+ else
+ {
+ int reloc, pcrel, offset;
+ fixS *fixP;
+
+ reloc = BFD_RELOC_NONE;
+ if (fixups[i].reloc != BFD_RELOC_UNUSED)
+ reloc = fixups[i].reloc;
+ /* How big is the reloc? Remember SPLIT relocs are
+ implicitly 32bits. */
+ if ((operand->flags & MN10300_OPERAND_SPLIT) != 0)
+ reloc_size = 32;
+ else if ((operand->flags & MN10300_OPERAND_24BIT) != 0)
+ reloc_size = 24;
+ else
+ reloc_size = operand->bits;
+
+ /* Is the reloc pc-relative? */
+ pcrel = (operand->flags & MN10300_OPERAND_PCREL) != 0;
+ if (reloc != BFD_RELOC_NONE)
+ pcrel = bfd_reloc_type_lookup (stdoutput, reloc)->pc_relative;
+
+ offset = size - (reloc_size + operand->shift) / 8;
+
+ /* Choose a proper BFD relocation type. */
+ if (reloc != BFD_RELOC_NONE)
+ ;
+ else if (pcrel)
+ {
+ if (reloc_size == 32)
+ reloc = BFD_RELOC_32_PCREL;
+ else if (reloc_size == 16)
+ reloc = BFD_RELOC_16_PCREL;
+ else if (reloc_size == 8)
+ reloc = BFD_RELOC_8_PCREL;
+ else
+ abort ();
+ }
+ else
+ {
+ if (reloc_size == 32)
+ reloc = BFD_RELOC_32;
+ else if (reloc_size == 16)
+ reloc = BFD_RELOC_16;
+ else if (reloc_size == 8)
+ reloc = BFD_RELOC_8;
+ else
+ abort ();
+ }
+
+ fixP = fix_new_exp (frag_now, f - frag_now->fr_literal + offset,
+ reloc_size / 8, &fixups[i].exp, pcrel,
+ ((bfd_reloc_code_real_type) reloc));
+
+ if (pcrel)
+ fixP->fx_offset += offset;
+ }
+ }
+
+ dwarf2_emit_insn (size);
+ }
- f = frag_more (size);
- number_to_chars_bigendian (f, insn, size > 4 ? 4 : size);
- if (size > 4)
- number_to_chars_bigendian (f + 4, extension, size - 4);
+ /* Label this frag as one that contains instructions. */
+ frag_now->tc_frag_data = TRUE;
}
+/* If while processing a fixup, a reloc really needs to be created
+ then it is done here. */
-/* if while processing a fixup, a reloc really needs to be created */
-/* then it is done here */
-
-arelent *
-tc_gen_reloc (seg, fixp)
- asection *seg;
- fixS *fixp;
+arelent **
+tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
{
+ static arelent * no_relocs = NULL;
+ static arelent * relocs[MAX_RELOC_EXPANSION + 1];
arelent *reloc;
- reloc = (arelent *) bfd_alloc_by_size_t (stdoutput, sizeof (arelent));
- reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym;
- reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
+
+ reloc = xmalloc (sizeof (arelent));
+
reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
- if (reloc->howto == (reloc_howto_type *) NULL)
+ if (reloc->howto == NULL)
{
as_bad_where (fixp->fx_file, fixp->fx_line,
- "reloc %d not supported by object file format", (int)fixp->fx_r_type);
- return NULL;
+ _("reloc %d not supported by object file format"),
+ (int) fixp->fx_r_type);
+ free (reloc);
+ return & no_relocs;
}
- reloc->addend = fixp->fx_addnumber;
- /* printf("tc_gen_reloc: addr=%x addend=%x\n", reloc->address, reloc->addend); */
- return reloc;
-}
-int
-md_estimate_size_before_relax (fragp, seg)
- fragS *fragp;
- asection *seg;
-{
- return 0;
-}
+ reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
+ relocs[0] = reloc;
+ relocs[1] = NULL;
-long
-md_pcrel_from (fixp)
- fixS *fixp;
-{
- if (fixp->fx_addsy != (symbolS *) NULL && ! S_IS_DEFINED (fixp->fx_addsy))
+ if (fixp->fx_subsy
+ && S_GET_SEGMENT (fixp->fx_subsy) == absolute_section)
{
- /* The symbol is undefined. Let the linker figure it out. */
- return 0;
+ fixp->fx_offset -= S_GET_VALUE (fixp->fx_subsy);
+ fixp->fx_subsy = NULL;
}
- return fixp->fx_frag->fr_address + fixp->fx_where;
-}
-int
-md_apply_fix3 (fixp, valuep, seg)
- fixS *fixp;
- valueT *valuep;
- segT seg;
-{
- valueT value;
- char *where;
+ if (fixp->fx_addsy && fixp->fx_subsy)
+ {
+ asection *asec, *ssec;
- fixp->fx_done = 1;
- return 0;
+ asec = S_GET_SEGMENT (fixp->fx_addsy);
+ ssec = S_GET_SEGMENT (fixp->fx_subsy);
- if (fixp->fx_addsy == (symbolS *) NULL)
- {
- value = *valuep;
- fixp->fx_done = 1;
- }
- else if (fixp->fx_pcrel)
- value = *valuep;
- else
- {
- value = fixp->fx_offset;
- if (fixp->fx_subsy != (symbolS *) NULL)
+ reloc->sym_ptr_ptr = NULL;
+
+ /* If we have a difference between two (non-absolute) symbols we must
+ generate two relocs (one for each symbol) and allow the linker to
+ resolve them - relaxation may change the distances between symbols,
+ even local symbols defined in the same section. */
+ if (ssec != absolute_section || asec != absolute_section)
{
- if (S_GET_SEGMENT (fixp->fx_subsy) == absolute_section)
- value -= S_GET_VALUE (fixp->fx_subsy);
- else
- {
- /* We don't actually support subtracting a symbol. */
- as_bad_where (fixp->fx_file, fixp->fx_line,
- "expression too complex");
- }
- }
- }
+ arelent * reloc2 = xmalloc (sizeof * reloc);
- /* printf("md_apply_fix: value=0x%x type=%d\n", value, fixp->fx_r_type); */
+ relocs[0] = reloc2;
+ relocs[1] = reloc;
- if ((int) fixp->fx_r_type >= (int) BFD_RELOC_UNUSED)
- {
- int opindex;
- const struct mn10300_operand *operand;
- char *where;
- unsigned long insn, extension;
+ reloc2->address = reloc->address;
+ reloc2->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_MN10300_SYM_DIFF);
+ reloc2->addend = - S_GET_VALUE (fixp->fx_subsy);
+ reloc2->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
+ *reloc2->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_subsy);
- opindex = (int) fixp->fx_r_type - (int) BFD_RELOC_UNUSED;
- operand = &mn10300_operands[opindex];
+ reloc->addend = fixp->fx_offset;
+ if (asec == absolute_section)
+ reloc->addend += S_GET_VALUE (fixp->fx_addsy);
- /* Fetch the instruction, insert the fully resolved operand
- value, and stuff the instruction back again.
+ reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
+ *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
- Note the instruction has been stored in little endian
- format! */
- where = fixp->fx_frag->fr_literal + fixp->fx_where;
+ fixp->fx_pcrel = 0;
+ fixp->fx_done = 1;
+ return relocs;
+ }
+ else
+ {
+ char *fixpos = fixp->fx_where + fixp->fx_frag->fr_literal;
- insn = bfd_getl32((unsigned char *) where);
- extension = 0;
- mn10300_insert_operand (&insn, &extension, operand,
- (offsetT) value, fixp->fx_file,
- fixp->fx_line, 0);
- bfd_putl32((bfd_vma) insn, (unsigned char *) where);
+ reloc->addend = (S_GET_VALUE (fixp->fx_addsy)
+ - S_GET_VALUE (fixp->fx_subsy) + fixp->fx_offset);
- if (fixp->fx_done)
- {
- /* Nothing else to do here. */
- return 1;
- }
+ switch (fixp->fx_r_type)
+ {
+ case BFD_RELOC_8:
+ md_number_to_chars (fixpos, reloc->addend, 1);
+ break;
+
+ case BFD_RELOC_16:
+ md_number_to_chars (fixpos, reloc->addend, 2);
+ break;
- /* Determine a BFD reloc value based on the operand information.
- We are only prepared to turn a few of the operands into relocs. */
+ case BFD_RELOC_24:
+ md_number_to_chars (fixpos, reloc->addend, 3);
+ break;
- {
- as_bad_where(fixp->fx_file, fixp->fx_line,
- "unresolved expression that must be resolved");
- fixp->fx_done = 1;
- return 1;
+ case BFD_RELOC_32:
+ md_number_to_chars (fixpos, reloc->addend, 4);
+ break;
+
+ default:
+ reloc->sym_ptr_ptr
+ = (asymbol **) bfd_abs_section_ptr->symbol_ptr_ptr;
+ return relocs;
+ }
+
+ if (reloc->sym_ptr_ptr)
+ free (reloc->sym_ptr_ptr);
+ free (reloc);
+ return & no_relocs;
}
}
- else if (fixp->fx_done)
+ else
{
- /* We still have to insert the value into memory! */
- where = fixp->fx_frag->fr_literal + fixp->fx_where;
- if (fixp->fx_size == 1)
- *where = value & 0xff;
- if (fixp->fx_size == 2)
- bfd_putl16(value & 0xffff, (unsigned char *) where);
- if (fixp->fx_size == 4)
- bfd_putl32(value, (unsigned char *) where);
+ reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
+ *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
+ reloc->addend = fixp->fx_offset;
}
+ return relocs;
+}
- fixp->fx_addnumber = value;
- return 1;
+/* Returns true iff the symbol attached to the frag is at a known location
+ in the given section, (and hence the relocation to it can be relaxed by
+ the assembler). */
+static inline bfd_boolean
+has_known_symbol_location (fragS * fragp, asection * sec)
+{
+ symbolS * sym = fragp->fr_symbol;
+
+ return sym != NULL
+ && S_IS_DEFINED (sym)
+ && ! S_IS_WEAK (sym)
+ && S_GET_SEGMENT (sym) == sec;
}
-/* Insert an operand value into an instruction. */
+int
+md_estimate_size_before_relax (fragS *fragp, asection *seg)
+{
+ if (fragp->fr_subtype == 6
+ && ! has_known_symbol_location (fragp, seg))
+ fragp->fr_subtype = 7;
+ else if (fragp->fr_subtype == 8
+ && ! has_known_symbol_location (fragp, seg))
+ fragp->fr_subtype = 9;
+ else if (fragp->fr_subtype == 10
+ && ! has_known_symbol_location (fragp, seg))
+ fragp->fr_subtype = 12;
+
+ if (fragp->fr_subtype == 13)
+ return 3;
+
+ if (fragp->fr_subtype >= sizeof (md_relax_table) / sizeof (md_relax_table[0]))
+ abort ();
+
+ return md_relax_table[fragp->fr_subtype].rlx_length;
+}
-static void
-mn10300_insert_operand (insnp, extensionp, operand, val, file, line, shift)
- unsigned long *insnp;
- unsigned long *extensionp;
- const struct mn10300_operand *operand;
- offsetT val;
- char *file;
- unsigned int line;
- unsigned int shift;
+long
+md_pcrel_from (fixS *fixp)
{
- /* No need to check 32bit operands for a bit. Note that
- MN10300_OPERAND_SPLIT is an implicit 32bit operand. */
- if (operand->bits != 32
- && (operand->flags & MN10300_OPERAND_SPLIT) == 0)
+ if (fixp->fx_addsy != (symbolS *) NULL
+ && (!S_IS_DEFINED (fixp->fx_addsy) || S_IS_WEAK (fixp->fx_addsy)))
+ /* The symbol is undefined or weak. Let the linker figure it out. */
+ return 0;
+
+ return fixp->fx_frag->fr_address + fixp->fx_where;
+}
+
+void
+md_apply_fix (fixS * fixP, valueT * valP, segT seg)
+{
+ char * fixpos = fixP->fx_where + fixP->fx_frag->fr_literal;
+ int size = 0;
+ int value = (int) * valP;
+
+ gas_assert (fixP->fx_r_type < BFD_RELOC_UNUSED);
+
+ /* This should never happen. */
+ if (seg->flags & SEC_ALLOC)
+ abort ();
+
+ /* The value we are passed in *valuep includes the symbol values.
+ If we are doing this relocation the code in write.c is going to
+ call bfd_install_relocation, which is also going to use the symbol
+ value. That means that if the reloc is fully resolved we want to
+ use *valuep since bfd_install_relocation is not being used.
+
+ However, if the reloc is not fully resolved we do not want to use
+ *valuep, and must use fx_offset instead. However, if the reloc
+ is PC relative, we do want to use *valuep since it includes the
+ result of md_pcrel_from. */
+ if (fixP->fx_addsy != NULL && ! fixP->fx_pcrel)
+ value = fixP->fx_offset;
+
+ /* If the fix is relative to a symbol which is not defined, or not
+ in the same segment as the fix, we cannot resolve it here. */
+ if (fixP->fx_addsy != NULL
+ && (! S_IS_DEFINED (fixP->fx_addsy)
+ || (S_GET_SEGMENT (fixP->fx_addsy) != seg)))
{
- long min, max;
- offsetT test;
+ fixP->fx_done = 0;
+ return;
+ }
- if ((operand->flags & MN10300_OPERAND_SIGNED) != 0)
- {
- max = (1 << (operand->bits - 1)) - 1;
- min = - (1 << (operand->bits - 1));
- }
- else
- {
- max = (1 << operand->bits) - 1;
- min = 0;
- }
+ switch (fixP->fx_r_type)
+ {
+ case BFD_RELOC_8:
+ case BFD_RELOC_8_PCREL:
+ size = 1;
+ break;
- test = val;
+ case BFD_RELOC_16:
+ case BFD_RELOC_16_PCREL:
+ size = 2;
+ break;
+ case BFD_RELOC_32:
+ case BFD_RELOC_32_PCREL:
+ size = 4;
+ break;
- if (test < (offsetT) min || test > (offsetT) max)
- {
- const char *err =
- "operand out of range (%s not between %ld and %ld)";
- char buf[100];
+ case BFD_RELOC_VTABLE_INHERIT:
+ case BFD_RELOC_VTABLE_ENTRY:
+ fixP->fx_done = 0;
+ return;
- sprint_value (buf, test);
- if (file == (char *) NULL)
- as_warn (err, buf, min, max);
- else
- as_warn_where (file, line, err, buf, min, max);
- }
+ case BFD_RELOC_MN10300_ALIGN:
+ fixP->fx_done = 1;
+ return;
+
+ case BFD_RELOC_NONE:
+ default:
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("Bad relocation fixup type (%d)"), fixP->fx_r_type);
}
- if ((operand->flags & MN10300_OPERAND_SPLIT) != 0)
+ md_number_to_chars (fixpos, value, size);
+
+ /* If a symbol remains, pass the fixup, as a reloc, onto the linker. */
+ if (fixP->fx_addsy == NULL)
+ fixP->fx_done = 1;
+}
+
+/* Return zero if the fixup in fixp should be left alone and not
+ adjusted. */
+
+bfd_boolean
+mn10300_fix_adjustable (struct fix *fixp)
+{
+ if (fixp->fx_pcrel)
{
- *insnp |= (val >> 32 - operand->bits) & ((1 << operand->bits) - 1);
- *extensionp |= ((val & ((1 << (32 - operand->bits)) - 1))
- << operand->shift);
+ if (TC_FORCE_RELOCATION_LOCAL (fixp))
+ return FALSE;
}
- else if ((operand->flags & MN10300_OPERAND_EXTENDED) == 0)
- {
- *insnp |= (((long) val & ((1 << operand->bits) - 1))
- << (operand->shift + shift));
+ /* Non-relative relocs can (and must) be adjusted if they do
+ not meet the criteria below, or the generic criteria. */
+ else if (TC_FORCE_RELOCATION (fixp))
+ return FALSE;
+
+ /* Do not adjust relocations involving symbols in code sections,
+ because it breaks linker relaxations. This could be fixed in the
+ linker, but this fix is simpler, and it pretty much only affects
+ object size a little bit. */
+ if (S_GET_SEGMENT (fixp->fx_addsy)->flags & SEC_CODE)
+ return FALSE;
+
+ /* Likewise, do not adjust symbols that won't be merged, or debug
+ symbols, because they too break relaxation. We do want to adjust
+ other mergable symbols, like .rodata, because code relaxations
+ need section-relative symbols to properly relax them. */
+ if (! (S_GET_SEGMENT (fixp->fx_addsy)->flags & SEC_MERGE))
+ return FALSE;
+
+ if (strncmp (S_GET_SEGMENT (fixp->fx_addsy)->name, ".debug", 6) == 0)
+ return FALSE;
+
+ return TRUE;
+}
- if ((operand->flags & MN10300_OPERAND_REPEATED) != 0)
- *insnp |= (((long) val & ((1 << operand->bits) - 1))
- << (operand->shift + shift + 2));
- }
- else
- {
- *extensionp |= (((long) val & ((1 << operand->bits) - 1))
- << (operand->shift + shift));
+static void
+set_arch_mach (int mach)
+{
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_mn10300, mach))
+ as_warn (_("could not set architecture and machine"));
- if ((operand->flags & MN10300_OPERAND_REPEATED) != 0)
- *extensionp |= (((long) val & ((1 << operand->bits) - 1))
- << (operand->shift + shift + 2));
- }
+ current_machine = mach;
}
-static unsigned long
-check_operand (insn, operand, val)
- unsigned long insn;
- const struct mn10300_operand *operand;
- offsetT val;
+static inline char *
+mn10300_end_of_match (char *cont, char *what)
{
- /* No need to check 32bit operands for a bit. Note that
- MN10300_OPERAND_SPLIT is an implicit 32bit operand. */
- if (operand->bits != 32
- && (operand->flags & MN10300_OPERAND_SPLIT) == 0)
- {
- long min, max;
- offsetT test;
+ int len = strlen (what);
- if ((operand->flags & MN10300_OPERAND_SIGNED) != 0)
+ if (strncmp (cont, what, strlen (what)) == 0
+ && ! is_part_of_name (cont[len]))
+ return cont + len;
+
+ return NULL;
+}
+
+int
+mn10300_parse_name (char const *name,
+ expressionS *exprP,
+ enum expr_mode mode,
+ char *nextcharP)
+{
+ char *next = input_line_pointer;
+ char *next_end;
+ int reloc_type;
+ segT segment;
+
+ exprP->X_op_symbol = NULL;
+
+ if (strcmp (name, GLOBAL_OFFSET_TABLE_NAME) == 0)
+ {
+ if (! GOT_symbol)
+ GOT_symbol = symbol_find_or_make (name);
+
+ exprP->X_add_symbol = GOT_symbol;
+ no_suffix:
+ /* If we have an absolute symbol or a reg,
+ then we know its value now. */
+ segment = S_GET_SEGMENT (exprP->X_add_symbol);
+ if (mode != expr_defer && segment == absolute_section)
+ {
+ exprP->X_op = O_constant;
+ exprP->X_add_number = S_GET_VALUE (exprP->X_add_symbol);
+ exprP->X_add_symbol = NULL;
+ }
+ else if (mode != expr_defer && segment == reg_section)
{
- max = (1 << (operand->bits - 1)) - 1;
- min = - (1 << (operand->bits - 1));
+ exprP->X_op = O_register;
+ exprP->X_add_number = S_GET_VALUE (exprP->X_add_symbol);
+ exprP->X_add_symbol = NULL;
}
else
- {
- max = (1 << operand->bits) - 1;
- min = 0;
- }
+ {
+ exprP->X_op = O_symbol;
+ exprP->X_add_number = 0;
+ }
- test = val;
+ return 1;
+ }
+ exprP->X_add_symbol = symbol_find_or_make (name);
+
+ if (*nextcharP != '@')
+ goto no_suffix;
+ else if ((next_end = mn10300_end_of_match (next + 1, "GOTOFF")))
+ reloc_type = BFD_RELOC_32_GOTOFF;
+ else if ((next_end = mn10300_end_of_match (next + 1, "GOT")))
+ reloc_type = BFD_RELOC_MN10300_GOT32;
+ else if ((next_end = mn10300_end_of_match (next + 1, "PLT")))
+ reloc_type = BFD_RELOC_32_PLT_PCREL;
+ else
+ goto no_suffix;
+
+ *input_line_pointer = *nextcharP;
+ input_line_pointer = next_end;
+ *nextcharP = *input_line_pointer;
+ *input_line_pointer = '\0';
+
+ exprP->X_op = O_PIC_reloc;
+ exprP->X_add_number = 0;
+ exprP->X_md = reloc_type;
- if (test < (offsetT) min || test > (offsetT) max)
- return 0;
- else
- return 1;
- }
return 1;
}
+
+/* The target specific pseudo-ops which we support. */
+const pseudo_typeS md_pseudo_table[] =
+{
+ { "am30", set_arch_mach, AM30 },
+ { "am33", set_arch_mach, AM33 },
+ { "am33_2", set_arch_mach, AM33_2 },
+ { "mn10300", set_arch_mach, MN103 },
+ {NULL, 0, 0}
+};
+
+/* Returns FALSE if there is some mn10300 specific reason why the
+ subtraction of two same-section symbols cannot be computed by
+ the assembler. */
+
+bfd_boolean
+mn10300_allow_local_subtract (expressionS * left, expressionS * right, segT section)
+{
+ bfd_boolean result;
+ fragS * left_frag;
+ fragS * right_frag;
+ fragS * frag;
+
+ /* If we are not performing linker relaxation then we have nothing
+ to worry about. */
+ if (linkrelax == 0)
+ return TRUE;
+
+ /* If the symbols are not in a code section then they are OK. */
+ if ((section->flags & SEC_CODE) == 0)
+ return TRUE;
+
+ /* Otherwise we have to scan the fragments between the two symbols.
+ If any instructions are found then we have to assume that linker
+ relaxation may change their size and so we must delay resolving
+ the subtraction until the final link. */
+ left_frag = symbol_get_frag (left->X_add_symbol);
+ right_frag = symbol_get_frag (right->X_add_symbol);
+
+ if (left_frag == right_frag)
+ return ! left_frag->tc_frag_data;
+
+ result = TRUE;
+ for (frag = left_frag; frag != NULL; frag = frag->fr_next)
+ {
+ if (frag->tc_frag_data)
+ result = FALSE;
+ if (frag == right_frag)
+ break;
+ }
+
+ if (frag == NULL)
+ for (frag = right_frag; frag != NULL; frag = frag->fr_next)
+ {
+ if (frag->tc_frag_data)
+ result = FALSE;
+ if (frag == left_frag)
+ break;
+ }
+
+ if (frag == NULL)
+ /* The two symbols are on disjoint fragment chains
+ - we cannot possibly compute their difference. */
+ return FALSE;
+
+ return result;
+}
+
+/* When relaxing, we need to output a reloc for any .align directive
+ that requests alignment to a two byte boundary or larger. */
+
+void
+mn10300_handle_align (fragS *frag)
+{
+ if (linkrelax
+ && (frag->fr_type == rs_align
+ || frag->fr_type == rs_align_code)
+ && frag->fr_address + frag->fr_fix > 0
+ && frag->fr_offset > 1
+ && now_seg != bss_section
+ /* Do not create relocs for the merging sections - such
+ relocs will prevent the contents from being merged. */
+ && (bfd_get_section_flags (now_seg->owner, now_seg) & SEC_MERGE) == 0)
+ /* Create a new fixup to record the alignment request. The symbol is
+ irrelevent but must be present so we use the absolute section symbol.
+ The offset from the symbol is used to record the power-of-two alignment
+ value. The size is set to 0 because the frag may already be aligned,
+ thus causing cvt_frag_to_fill to reduce the size of the frag to zero. */
+ fix_new (frag, frag->fr_fix, 0, & abs_symbol, frag->fr_offset, FALSE,
+ BFD_RELOC_MN10300_ALIGN);
+}
+
+bfd_boolean
+mn10300_force_relocation (struct fix * fixp)
+{
+ if (linkrelax
+ && (fixp->fx_pcrel
+ || fixp->fx_r_type == BFD_RELOC_MN10300_ALIGN))
+ return TRUE;
+
+ return generic_force_reloc (fixp);
+}
projects / external / binutils.git / blobdiff