/* tc-mn10300.c -- Assembler code for the Matsushita 10300
-
- Copyright (C) 1996 Free Software Foundation.
+ Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation.
This file is part of GAS, the GNU Assembler.
#include <stdio.h>
#include <ctype.h>
#include "as.h"
-#include "subsegs.h"
+#include "subsegs.h"
#include "opcode/mn10300.h"
+#include "dwarf2dbg.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[] = {
+ /* bCC relaxing */
+ {0x7f, -0x80, 2, 1},
+ {0x7fff, -0x8000, 5, 2},
+ {0x7fffffff, -0x80000000, 7, 0},
+
+ /* bCC relaxing (uncommon cases) */
+ {0x7f, -0x80, 3, 4},
+ {0x7fff, -0x8000, 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},
+
+};
-/* local functions */
+/* Local functions. */
static void mn10300_insert_operand PARAMS ((unsigned long *, unsigned long *,
const struct mn10300_operand *,
offsetT, char *, unsigned,
static boolean data_register_name PARAMS ((expressionS *expressionP));
static boolean address_register_name PARAMS ((expressionS *expressionP));
static boolean other_register_name PARAMS ((expressionS *expressionP));
+static void set_arch_mach PARAMS ((int));
+
+/* Set linkrelax here to avoid fixups in most sections. */
+int linkrelax = 1;
+static int current_machine;
-/* fixups */
+/* Fixups. */
#define MAX_INSN_FIXUPS (5)
struct mn10300_fixup
{
};
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);
+size_t md_longopts_size = sizeof (md_longopts);
/* The target specific pseudo-ops which we support. */
const pseudo_typeS md_pseudo_table[] =
{
- { NULL, NULL, 0 }
+ { "file", dwarf2_directive_file, 0 },
+ { "loc", dwarf2_directive_loc, 0 },
+ { "am30", set_arch_mach, AM30 },
+ { "am33", set_arch_mach, AM33 },
+ { "mn10300", set_arch_mach, MN103 },
+ {NULL, 0, 0}
};
+#define HAVE_AM33 (current_machine == AM33)
+#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))
+#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))
+
+#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 },
+};
+
+#define R_REG_NAME_CNT \
+ (sizeof (r_registers) / sizeof (struct reg_name))
+
+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 },
+};
+
+#define XR_REG_NAME_CNT \
+ (sizeof (xr_registers) / sizeof (struct reg_name))
static const struct reg_name other_registers[] =
{
{ "psw", 0 },
{ "sp", 0 },
};
-#define OTHER_REG_NAME_CNT (sizeof(other_registers) / sizeof(struct reg_name))
+
+#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. */
+ number from the array on success, or -1 on failure. */
static int
reg_name_search (regs, regcount, name)
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
+r_register_name (expressionP)
+ expressionS *expressionP;
+{
+ int reg_number;
+ char *name;
+ char *start;
+ char c;
+
+ /* Find the spelling of the operand. */
+ start = name = input_line_pointer;
+
+ c = get_symbol_end ();
+ reg_number = reg_name_search (r_registers, R_REG_NAME_CNT, name);
+
+ /* 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. */
+ expressionP->X_add_symbol = NULL;
+ expressionP->X_op_symbol = NULL;
+
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
+ return true;
+ }
+ else
+ {
+ /* Reset the line as if we had not done anything. */
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
+
+ /* Reset input_line pointer. */
+ input_line_pointer = start;
+ return false;
+ }
+}
/* Summary of register_name().
*
* Input_line_pointer->(next non-blank) char after operand, or is in
* its original state.
*/
+
+static boolean
+xr_register_name (expressionP)
+ expressionS *expressionP;
+{
+ int reg_number;
+ char *name;
+ char *start;
+ char c;
+
+ /* Find the spelling of the operand. */
+ start = name = input_line_pointer;
+
+ c = get_symbol_end ();
+ reg_number = reg_name_search (xr_registers, XR_REG_NAME_CNT, name);
+
+ /* 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. */
+ expressionP->X_add_symbol = NULL;
+ expressionP->X_op_symbol = NULL;
+
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
+ return true;
+ }
+ else
+ {
+ /* Reset the line as if we had not done anything. */
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
+
+ /* Reset input_line pointer. */
+ 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
data_register_name (expressionP)
expressionS *expressionP;
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);
- /* 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 */
+
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
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 */
+ /* Reset the line as if we had not done anything. */
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
+
+ /* Reset input_line pointer. */
+ input_line_pointer = start;
return false;
}
}
* Input_line_pointer->(next non-blank) char after operand, or is in
* its original state.
*/
+
static boolean
address_register_name (expressionP)
expressionS *expressionP;
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 (address_registers, ADDRESS_REG_NAME_CNT, name);
- /* 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 */
+
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
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 */
+ /* Reset the line as if we had not done anything. */
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
+
+ /* Reset input_line pointer. */
+ input_line_pointer = start;
+
return false;
}
}
* Input_line_pointer->(next non-blank) char after operand, or is in
* its original state.
*/
+
static boolean
other_register_name (expressionP)
expressionS *expressionP;
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);
- /* 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 */
+
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
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 */
+ /* Reset the line as if we had not done anything. */
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
+
+ /* Reset input_line pointer. */
+ input_line_pointer = start;
return false;
}
}
void
md_show_usage (stream)
- FILE *stream;
+ FILE *stream;
{
- fprintf(stream, "MN10300 options:\n\
-none yet\n");
-}
+ fprintf (stream, _("MN10300 options:\n\
+none yet\n"));
+}
int
md_parse_option (c, arg)
- int c;
- char *arg;
+ int c ATTRIBUTE_UNUSED;
+ char *arg ATTRIBUTE_UNUSED;
{
return 0;
}
symbolS *
md_undefined_symbol (name)
- char *name;
+ char *name ATTRIBUTE_UNUSED;
{
return 0;
}
char *
md_atof (type, litp, sizep)
- int type;
- char *litp;
- int *sizep;
+ int type;
+ char *litp;
+ int *sizep;
{
int prec;
LITTLENUM_TYPE words[4];
*sizep = 0;
return "bad call to md_atof";
}
-
+
t = atof_ieee (input_line_pointer, type, words);
if (t)
input_line_pointer = t;
return NULL;
}
-
void
md_convert_frag (abfd, sec, fragP)
- bfd *abfd;
- asection *sec;
- fragS *fragP;
+ bfd *abfd ATTRIBUTE_UNUSED;
+ asection *sec;
+ fragS *fragP;
{
- /* printf ("call to md_convert_frag \n"); */
- abort ();
+ static unsigned long label_count = 0;
+ char buf[40];
+
+ subseg_change (sec, 0);
+ if (fragP->fr_subtype == 0)
+ {
+ 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;
+
+ 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;
+
+ 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;
+ }
+ 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;
+
+ 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;
+
+ 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)
+ {
+ 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;
+ 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;
+ 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, 4, 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
+ abort ();
}
valueT
char *prev_name = "";
register 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
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++;
}
- /* This is both a simplification (we don't have to write md_apply_fix)
- and support for future optimizations (branch shortening and similar
- stuff in the linker. */
- linkrelax = 1;
+ /* Set the default machine type. */
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_mn10300, MN103))
+ as_warn (_("could not set architecture and machine"));
+
+ current_machine = MN103;
}
void
-md_assemble (str)
+md_assemble (str)
char *str;
{
char *s;
struct mn10300_opcode *opcode;
struct mn10300_opcode *next_opcode;
const unsigned char *opindex_ptr;
- int next_opindex;
- unsigned long insn, extension, size = 0;
+ int next_opindex, relaxable;
+ unsigned long insn, extension, size = 0, real_size;
char *f;
int i;
int match;
/* Get the opcode. */
- for (s = str; *s != '\0' && ! isspace (*s); s++)
+ 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);
+ /* 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);
+ as_bad (_("Unrecognized opcode: `%s'"), str);
return;
}
input_line_pointer = str;
- for(;;)
+ for (;;)
{
- const char *errmsg = NULL;
+ 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 && HAVE_AM33)
+ && !(opcode->machine == AM30 && HAVE_AM30))
+ goto error;
+
for (op_idx = 1, opindex_ptr = opcode->operands;
*opindex_ptr != 0;
opindex_ptr++, op_idx++)
next_opindex = 0;
}
- errmsg = NULL;
-
while (*str == ' ' || *str == ',')
++str;
- /* Gather the operand. */
+ if (operand->flags & MN10300_OPERAND_RELAX)
+ relaxable = 1;
+
+ /* Gather the operand. */
hold = input_line_pointer;
input_line_pointer = str;
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;
+ str = hold;
+ goto error;
+ }
+ *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_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;
*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;
/* Eat the '['. */
input_line_pointer++;
-
- /* A null register list can not be specified. */
- if (*input_line_pointer == ']')
- {
- input_line_pointer = hold;
- str = hold;
- goto error;
- }
+ /* 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;
start = input_line_pointer;
c = get_symbol_end ();
- if (strcmp (start, "d2") == 0)
+ if (strcasecmp (start, "d2") == 0)
{
value |= 0x80;
*input_line_pointer = c;
}
- else if (strcmp (start, "d3") == 0)
+ else if (strcasecmp (start, "d3") == 0)
{
value |= 0x40;
*input_line_pointer = c;
}
- else if (strcmp (start, "a2") == 0)
+ else if (strcasecmp (start, "a2") == 0)
{
value |= 0x20;
*input_line_pointer = c;
}
- else if (strcmp (start, "a3") == 0)
+ else if (strcasecmp (start, "a3") == 0)
{
value |= 0x10;
*input_line_pointer = c;
}
- else if (strcmp (start, "other") == 0)
+ 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;
}
+ 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 (*str == ')' || *str == '(')
{
input_line_pointer = hold;
expression (&ex);
}
- switch (ex.X_op)
+ switch (ex.X_op)
{
case O_illegal:
- errmsg = "illegal operand";
+ errmsg = _("illegal operand");
goto error;
case O_absent:
- errmsg = "missing operand";
+ 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;
+ {
+ int mask;
+
+ mask = MN10300_OPERAND_DREG | MN10300_OPERAND_AREG;
+ if (HAVE_AM33)
+ mask |= MN10300_OPERAND_RREG | MN10300_OPERAND_XRREG;
+ 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, (char *) 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 (insn, operand, ex.X_add_number))
{
input_line_pointer = hold;
str = hold;
/* 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 (*str != ',')
match = 1;
+ /* If this instruction has registers that must not match, verify
+ that they do indeed not match. */
+ if (opcode->no_match_operands)
+ {
+ int i;
+
+ /* 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))
++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_D4)
size = 6;
- /* Write out the instruction. */
+ real_size = 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);
-
- /* Create any fixups. */
- for (i = 0; i < fc; i++)
+ if (relaxable && fc > 0)
{
- const struct mn10300_operand *operand;
+ int type;
- operand = &mn10300_operands[fixups[i].opindex];
- if (fixups[i].reloc != BFD_RELOC_UNUSED)
+ /* bCC */
+ if (size == 2)
{
- reloc_howto_type *reloc_howto;
- int size;
- int offset;
- fixS *fixP;
-
- reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
-
- if (!reloc_howto)
- abort();
-
- size = bfd_get_reloc_size (reloc_howto);
-
- if (size < 1 || size > 4)
- abort();
-
- offset = 4 - size;
- fixP = fix_new_exp (frag_now, f - frag_now->fr_literal + offset, size,
- &fixups[i].exp,
- reloc_howto->pc_relative,
- fixups[i].reloc);
+ /* 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;
+ /* bCC (uncommon cases) */
else
+ type = 3;
+
+ f = frag_var (rs_machine_dependent, 8, 8 - size, type,
+ fixups[0].exp.X_add_symbol,
+ fixups[0].exp.X_add_number,
+ (char *)fixups[0].opindex);
+
+ /* 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)
{
- int reloc, pcrel, reloc_size, offset;
+ 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_D4)
+ {
+ unsigned long temp = ((insn & 0xffff) << 16) | (extension & 0xffff);
- reloc = BFD_RELOC_NONE;
- /* How big is the reloc? Remember SPLIT relocs are
- implicitly 32bits. */
- if ((operand->flags & MN10300_OPERAND_SPLIT) != 0)
- reloc_size = 32;
- else
- reloc_size = operand->bits;
-
- /* Is the reloc pc-relative? */
- pcrel = (operand->flags & MN10300_OPERAND_PCREL) != 0;
-
- /* Gross. This disgusting hack is to make sure we
- get the right offset for the 16/32 bit reloc in
- "call" instructions. Basically they're a pain
- because the reloc isn't at the end of the instruction. */
- if ((size == 5 || size == 7)
- && (((insn >> 24) & 0xff) == 0xcd
- || ((insn >> 24) & 0xff) == 0xdd))
- size -= 2;
-
- /* Similarly for certain bit instructions which don't
- hav their 32bit reloc at the tail of the instruction. */
- if (size == 7
- && (((insn >> 16) & 0xffff) == 0xfe00
- || ((insn >> 16) & 0xffff) == 0xfe01
- || ((insn >> 16) & 0xffff) == 0xfe02))
- size -= 1;
-
- offset = size - reloc_size / 8;
-
- /* Choose a proper BFD relocation type. */
- if (pcrel)
+ 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;
+
+ operand = &mn10300_operands[fixups[i].opindex];
+ if (fixups[i].reloc != BFD_RELOC_UNUSED)
{
- if (size == 6)
- reloc = BFD_RELOC_MN10300_32_PCREL;
- else if (size == 4)
- reloc = BFD_RELOC_MN10300_16_PCREL;
- else 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
+ reloc_howto_type *reloc_howto;
+ int size;
+ int offset;
+ fixS *fixP;
+
+ reloc_howto = bfd_reloc_type_lookup (stdoutput,
+ fixups[i].reloc);
+
+ if (!reloc_howto)
abort ();
+
+ size = bfd_get_reloc_size (reloc_howto);
+
+ if (size < 1 || size > 4)
+ abort ();
+
+ offset = 4 - size;
+ fixP = fix_new_exp (frag_now, f - frag_now->fr_literal + offset,
+ size, &fixups[i].exp,
+ reloc_howto->pc_relative,
+ fixups[i].reloc);
}
else
{
- if (reloc_size == 32)
- reloc = BFD_RELOC_MN10300_32B;
- else if (reloc_size == 16)
- reloc = BFD_RELOC_MN10300_16B;
- else if (reloc_size == 8)
- reloc = BFD_RELOC_8;
+ int reloc, pcrel, reloc_size, offset;
+ fixS *fixP;
+
+ reloc = BFD_RELOC_NONE;
+ /* 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
- abort ();
- }
+ reloc_size = operand->bits;
+
+ /* Is the reloc pc-relative? */
+ pcrel = (operand->flags & MN10300_OPERAND_PCREL) != 0;
+
+ /* Gross. This disgusting hack is to make sure we
+ get the right offset for the 16/32 bit reloc in
+ "call" instructions. Basically they're a pain
+ because the reloc isn't at the end of the instruction. */
+ if ((size == 5 || size == 7)
+ && (((insn >> 24) & 0xff) == 0xcd
+ || ((insn >> 24) & 0xff) == 0xdd))
+ size -= 2;
+
+ /* Similarly for certain bit instructions which don't
+ hav their 32bit reloc at the tail of the instruction. */
+ if (size == 7
+ && (((insn >> 16) & 0xffff) == 0xfe00
+ || ((insn >> 16) & 0xffff) == 0xfe01
+ || ((insn >> 16) & 0xffff) == 0xfe02))
+ size -= 1;
+
+ offset = size - reloc_size / 8;
+
+ /* Choose a proper BFD relocation type. */
+ 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 ();
+ }
+
+ /* Convert the size of the reloc into what fix_new_exp wants. */
+ reloc_size = reloc_size / 8;
+ if (reloc_size == 8)
+ reloc_size = 0;
+ else if (reloc_size == 16)
+ reloc_size = 1;
+ else if (reloc_size == 32)
+ reloc_size = 2;
- /* Convert the size of the reloc into what fix_new_exp wants. */
- reloc_size = reloc_size / 8;
- if (reloc_size == 8)
- reloc_size = 0;
- else if (reloc_size == 16)
- reloc_size = 1;
- else if (reloc_size == 32)
- reloc_size = 2;
-
- fix_new_exp (frag_now, f - frag_now->fr_literal + offset, reloc_size,
- &fixups[i].exp, pcrel,
- ((bfd_reloc_code_real_type) reloc));
+ fixP = fix_new_exp (frag_now, f - frag_now->fr_literal + offset,
+ reloc_size, &fixups[i].exp, pcrel,
+ ((bfd_reloc_code_real_type) reloc));
+
+ if (pcrel)
+ fixP->fx_offset += offset;
+ }
}
}
+
+ dwarf2_emit_insn (real_size);
}
+/* 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;
+ asection *seg ATTRIBUTE_UNUSED;
fixS *fixp;
{
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 = (arelent *) xmalloc (sizeof (arelent));
+
reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
if (reloc->howto == (reloc_howto_type *) NULL)
{
as_bad_where (fixp->fx_file, fixp->fx_line,
- "reloc %d not supported by object file format", (int)fixp->fx_r_type);
+ _("reloc %d not supported by object file format"),
+ (int) fixp->fx_r_type);
return NULL;
}
- reloc->addend = fixp->fx_offset;
- /* printf("tc_gen_reloc: addr=%x addend=%x\n", reloc->address, reloc->addend); */
+ reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
+
+ if (fixp->fx_addsy && fixp->fx_subsy)
+ {
+
+ if ((S_GET_SEGMENT (fixp->fx_addsy) != S_GET_SEGMENT (fixp->fx_subsy))
+ || S_GET_SEGMENT (fixp->fx_addsy) == undefined_section)
+ {
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ "Difference of symbols in different sections is not supported");
+ return NULL;
+ }
+
+ reloc->sym_ptr_ptr = (asymbol **) &bfd_abs_symbol;
+ reloc->addend = (S_GET_VALUE (fixp->fx_addsy)
+ - S_GET_VALUE (fixp->fx_subsy) + fixp->fx_offset);
+ }
+ else
+ {
+ reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
+ *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
+ reloc->addend = fixp->fx_offset;
+ }
return reloc;
}
fragS *fragp;
asection *seg;
{
- return 0;
-}
+ if (fragp->fr_subtype == 0)
+ return 2;
+ if (fragp->fr_subtype == 3)
+ return 3;
+ if (fragp->fr_subtype == 6)
+ {
+ if (!S_IS_DEFINED (fragp->fr_symbol)
+ || seg != S_GET_SEGMENT (fragp->fr_symbol))
+ {
+ fragp->fr_subtype = 7;
+ return 7;
+ }
+ else
+ return 5;
+ }
+ if (fragp->fr_subtype == 8)
+ {
+ if (!S_IS_DEFINED (fragp->fr_symbol)
+ || seg != S_GET_SEGMENT (fragp->fr_symbol))
+ {
+ fragp->fr_subtype = 9;
+ return 6;
+ }
+ else
+ return 4;
+ }
+ if (fragp->fr_subtype == 10)
+ {
+ if (!S_IS_DEFINED (fragp->fr_symbol)
+ || seg != S_GET_SEGMENT (fragp->fr_symbol))
+ {
+ fragp->fr_subtype = 12;
+ return 5;
+ }
+ else
+ return 2;
+ }
+ abort ();
+}
long
md_pcrel_from (fixp)
fixS *fixp;
{
- return fixp->fx_frag->fr_address;
-#if 0
- if (fixp->fx_addsy != (symbolS *) NULL && ! S_IS_DEFINED (fixp->fx_addsy))
+ if (fixp->fx_addsy != (symbolS *) NULL && !S_IS_DEFINED (fixp->fx_addsy))
{
/* The symbol is undefined. Let the linker figure it out. */
return 0;
}
return fixp->fx_frag->fr_address + fixp->fx_where;
-#endif
}
int
valueT *valuep;
segT seg;
{
- /* We shouldn't ever get here because linkrelax is nonzero. */
- abort ();
+ char *fixpos = fixp->fx_where + fixp->fx_frag->fr_literal;
+ int size = 0;
+ int value;
+
+ 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.
+ Since we are using BFD_ASSEMBLER, 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 == (symbolS *) NULL || fixp->fx_pcrel)
+ value = *valuep;
+ else
+ 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)))
+ {
+ fixp->fx_done = 0;
+ return 0;
+ }
+
+ switch (fixp->fx_r_type)
+ {
+ case BFD_RELOC_8:
+ size = 1;
+ break;
+
+ case BFD_RELOC_16:
+ size = 2;
+ break;
+
+ case BFD_RELOC_32:
+ size = 4;
+ break;
+
+ case BFD_RELOC_VTABLE_INHERIT:
+ case BFD_RELOC_VTABLE_ENTRY:
+ fixp->fx_done = 0;
+ return 1;
+
+ case BFD_RELOC_NONE:
+ default:
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ _("Bad relocation fixup type (%d)"), fixp->fx_r_type);
+ }
+
+ md_number_to_chars (fixpos, value, size);
+
fixp->fx_done = 1;
return 0;
+
+}
+
+/* Return nonzero if the fixup in FIXP will require a relocation,
+ even it if appears that the fixup could be completely handled
+ within GAS. */
+
+int
+mn10300_force_relocation (fixp)
+ struct fix *fixp;
+{
+ if (fixp->fx_r_type == BFD_RELOC_VTABLE_INHERIT
+ || fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
+ return 1;
+
+ return 0;
+}
+
+/* Return zero if the fixup in fixp should be left alone and not
+ adjusted. */
+
+boolean
+mn10300_fix_adjustable (fixp)
+ struct fix *fixp;
+{
+ /* Prevent all adjustments to global symbols. */
+ if (S_IS_EXTERN (fixp->fx_addsy) || S_IS_WEAK (fixp->fx_addsy))
+ return 0;
+
+ if (fixp->fx_r_type == BFD_RELOC_VTABLE_INHERIT
+ || fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
+ return 0;
+
+ return 1;
}
/* Insert an operand value into an instruction. */
{
long min, max;
offsetT test;
+ int bits;
+
+ bits = operand->bits;
+ if (operand->flags & MN10300_OPERAND_24BIT)
+ bits = 24;
if ((operand->flags & MN10300_OPERAND_SIGNED) != 0)
{
- max = (1 << (operand->bits - 1)) - 1;
- min = - (1 << (operand->bits - 1));
+ max = (1 << (bits - 1)) - 1;
+ min = - (1 << (bits - 1));
}
else
- {
- max = (1 << operand->bits) - 1;
- min = 0;
- }
+ {
+ max = (1 << bits) - 1;
+ min = 0;
+ }
test = val;
-
if (test < (offsetT) min || test > (offsetT) max)
- {
- const char *err =
- "operand out of range (%s not between %ld and %ld)";
- char buf[100];
-
- sprint_value (buf, test);
- if (file == (char *) NULL)
- as_warn (err, buf, min, max);
- else
- as_warn_where (file, line, err, buf, min, max);
- }
+ {
+ const char *err =
+ _("operand out of range (%s not between %ld and %ld)");
+ char buf[100];
+
+ sprint_value (buf, test);
+ if (file == (char *) NULL)
+ as_warn (err, buf, min, max);
+ else
+ as_warn_where (file, line, err, buf, min, max);
+ }
}
if ((operand->flags & MN10300_OPERAND_SPLIT) != 0)
*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_EXTENDED) == 0)
{
*insnp |= (((long) val & ((1 << operand->bits) - 1))
if ((operand->flags & MN10300_OPERAND_REPEATED) != 0)
*insnp |= (((long) val & ((1 << operand->bits) - 1))
- << (operand->shift + shift + 2));
+ << (operand->shift + shift + operand->bits));
}
else
{
if ((operand->flags & MN10300_OPERAND_REPEATED) != 0)
*extensionp |= (((long) val & ((1 << operand->bits) - 1))
- << (operand->shift + shift + 2));
+ << (operand->shift + shift + operand->bits));
}
}
static unsigned long
check_operand (insn, operand, val)
- unsigned long insn;
+ unsigned long insn ATTRIBUTE_UNUSED;
const struct mn10300_operand *operand;
offsetT val;
{
{
long min, max;
offsetT test;
+ int bits;
+
+ bits = operand->bits;
+ if (operand->flags & MN10300_OPERAND_24BIT)
+ bits = 24;
if ((operand->flags & MN10300_OPERAND_SIGNED) != 0)
{
- max = (1 << (operand->bits - 1)) - 1;
- min = - (1 << (operand->bits - 1));
+ max = (1 << (bits - 1)) - 1;
+ min = - (1 << (bits - 1));
}
else
- {
- max = (1 << operand->bits) - 1;
- min = 0;
- }
+ {
+ max = (1 << bits) - 1;
+ min = 0;
+ }
test = val;
-
if (test < (offsetT) min || test > (offsetT) max)
return 0;
else
}
return 1;
}
+
+static void
+set_arch_mach (mach)
+ int mach;
+{
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_mn10300, mach))
+ as_warn (_("could not set architecture and machine"));
+
+ current_machine = mach;
+}
projects / deliverable / binutils-gdb.git / blobdiff