1 /* tc-h8300.c -- Assemble code for the Hitachi H8/300
2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000
3 Free Software Foundation, Inc.
5 This file is part of GAS, the GNU Assembler.
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
22 /* Written By Steve Chamberlain <sac@cygnus.com>. */
29 #define h8_opcodes ops
30 #include "opcode/h8300.h"
33 const char comment_chars[] = ";";
34 const char line_comment_chars[] = "#";
35 const char line_separator_chars[] = "";
37 /* This table describes all the machine specific pseudo-ops the assembler
38 has to support. The fields are:
39 pseudo-op name without dot
40 function to call to execute this pseudo-op
41 Integer arg to pass to the function
48 #define PSIZE (Hmode ? L_32 : L_16)
50 #define DSYMMODE (Hmode ? L_24 : L_16)
51 int bsize = L_8; /* default branch displacement */
80 const pseudo_typeS md_pseudo_table[] =
82 {"h8300h", h8300hmode, 0},
83 {"h8300s", h8300smode, 0},
84 {"sbranch", sbranch, L_8},
85 {"lbranch", sbranch, L_16},
91 {"form", listing_psize, 0},
92 {"heading", listing_title, 0},
93 {"import", s_ignore, 0},
94 {"page", listing_eject, 0},
95 {"program", s_ignore, 0},
99 const int md_reloc_size;
101 const char EXP_CHARS[] = "eE";
103 /* Chars that mean this number is a floating point constant */
106 const char FLT_CHARS[] = "rRsSfFdDxXpP";
108 static struct hash_control *opcode_hash_control; /* Opcode mnemonics */
110 /* This function is called once, at assembler startup time. This
111 should set up all the tables, etc. that the MD part of the assembler
116 struct h8_opcode *opcode;
117 char prev_buffer[100];
120 opcode_hash_control = hash_new ();
123 for (opcode = h8_opcodes; opcode->name; opcode++)
125 /* Strip off any . part when inserting the opcode and only enter
126 unique codes into the hash table. */
127 char *src = opcode->name;
128 unsigned int len = strlen (src);
129 char *dst = malloc (len + 1);
144 if (strcmp (buffer, prev_buffer))
146 hash_insert (opcode_hash_control, buffer, (char *) opcode);
147 strcpy (prev_buffer, buffer);
152 /* Find the number of operands. */
153 opcode->noperands = 0;
154 while (opcode->args.nib[opcode->noperands] != E)
157 /* Find the length of the opcode in bytes. */
159 while (opcode->data.nib[opcode->length * 2] != E)
174 int opsize; /* Set when a register size is seen */
185 WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp
194 /* Try to parse a reg name. Return the number of chars consumed. */
197 parse_reg (src, mode, reg, direction)
207 /* Cribbed from get_symbol_end. */
208 if (!is_name_beginner (*src) || *src == '\001')
211 while (is_part_of_name (*end) || *end == '\001')
215 if (len == 2 && src[0] == 's' && src[1] == 'p')
217 *mode = PSIZE | REG | direction;
221 if (len == 3 && src[0] == 'c' && src[1] == 'c' && src[2] == 'r')
227 if (len == 3 && src[0] == 'e' && src[1] == 'x' && src[2] == 'r')
233 if (len == 2 && src[0] == 'f' && src[1] == 'p')
235 *mode = PSIZE | REG | direction;
239 if (len == 3 && src[0] == 'e' && src[1] == 'r'
240 && src[2] >= '0' && src[2] <= '7')
242 *mode = L_32 | REG | direction;
245 as_warn (_("Reg not valid for H8/300"));
248 if (len == 2 && src[0] == 'e' && src[1] >= '0' && src[1] <= '7')
250 *mode = L_16 | REG | direction;
251 *reg = src[1] - '0' + 8;
253 as_warn (_("Reg not valid for H8/300"));
259 if (src[1] >= '0' && src[1] <= '7')
261 if (len == 3 && src[2] == 'l')
263 *mode = L_8 | REG | direction;
264 *reg = (src[1] - '0') + 8;
267 if (len == 3 && src[2] == 'h')
269 *mode = L_8 | REG | direction;
270 *reg = (src[1] - '0');
275 *mode = L_16 | REG | direction;
276 *reg = (src[1] - '0');
290 char *save = input_line_pointer;
293 input_line_pointer = s;
295 if (op->X_op == O_absent)
296 as_bad (_("missing operand"));
297 new = input_line_pointer;
298 input_line_pointer = save;
303 skip_colonthing (ptr, exp, mode)
305 expressionS *exp ATTRIBUTE_UNUSED;
315 /* ff fill any 8 bit quantity */
316 /* exp->X_add_number -= 0x100; */
325 else if (*ptr == '3')
329 else if (*ptr == '1')
333 while (isdigit (*ptr))
340 /* The many forms of operand:
343 @Rn Register indirect
344 @(exp[:16], Rn) Register indirect with displacement
348 @aa:16 absolute 16 bit
351 #xx[:size] immediate data
352 @(exp:[8], pc) pc rel
353 @@aa[:8] memory indirect
364 src = skip_colonthing (src, &op->exp, &mode);
368 /* Choose a default mode. */
369 if (op->exp.X_add_number < -32768
370 || op->exp.X_add_number > 32767)
377 else if (op->exp.X_add_symbol
378 || op->exp.X_op_symbol)
389 get_operand (ptr, op, dst, direction)
392 unsigned int dst ATTRIBUTE_UNUSED;
402 /* Gross. Gross. ldm and stm have a format not easily handled
403 by get_operand. We deal with it explicitly here. */
404 if (src[0] == 'e' && src[1] == 'r' && isdigit (src[2])
405 && src[3] == '-' && src[4] == 'e' && src[5] == 'r' && isdigit (src[6]))
413 as_bad (_("Invalid register list for ldm/stm\n"));
416 as_bad (_("Invalid register list for ldm/stm\n"));
419 as_bad (_("Invalid register list for ldm/stm\n"));
423 as_bad (_("Invalid register list for ldm/stm\n"));
425 /* Even sicker. We encode two registers into op->reg. One
426 for the low register to save, the other for the high
427 register to save; we also set the high bit in op->reg
428 so we know this is "very special". */
429 op->reg = 0x80000000 | (high << 8) | low;
435 len = parse_reg (src, &op->mode, &op->reg, direction);
448 src = parse_exp (src, &op->exp);
450 src = skip_colonthing (src, &op->exp, &op->mode);
461 len = parse_reg (src, &mode, &num, direction);
464 /* Oops, not a reg after all, must be ordinary exp. */
466 /* Must be a symbol. */
467 op->mode = ABS | PSIZE | direction;
468 *ptr = skip_colonthing (parse_exp (src, &op->exp),
469 &op->exp, &op->mode);
474 if ((mode & SIZE) != PSIZE)
475 as_bad (_("Wrong size pointer register for architecture."));
486 /* Start off assuming a 16 bit offset. */
488 src = parse_exp (src, &op->exp);
490 src = colonmod24 (op, src);
495 op->mode |= ABS | direction;
502 as_bad (_("expected @(exp, reg16)"));
508 len = parse_reg (src, &mode, &op->reg, direction);
509 if (len == 0 || !(mode & REG))
511 as_bad (_("expected @(exp, reg16)"));
514 op->mode |= DISP | direction;
517 src = skip_colonthing (src, &op->exp, &op->mode);
519 if (*src != ')' && '(')
521 as_bad (_("expected @(exp, reg16)"));
528 len = parse_reg (src, &mode, &num, direction);
536 if ((mode & SIZE) != PSIZE)
537 as_bad (_("Wrong size pointer register for architecture."));
543 if ((mode & SIZE) != PSIZE)
544 as_bad (_("Wrong size pointer register for architecture."));
546 op->mode = direction | IND | PSIZE;
554 /* must be a symbol */
556 op->mode = ABS | direction;
557 src = parse_exp (src, &op->exp);
559 *ptr = colonmod24 (op, src);
569 src = parse_exp (src, &op->exp);
570 *ptr = skip_colonthing (src, &op->exp, &op->mode);
574 else if (strncmp (src, "mach", 4) == 0
575 || strncmp (src, "macl", 4) == 0)
577 op->reg = src[3] == 'l';
584 src = parse_exp (src, &op->exp);
585 /* Trailing ':' size ? */
588 if (src[1] == '1' && src[2] == '6')
590 op->mode = PCREL | L_16;
593 else if (src[1] == '8')
595 op->mode = PCREL | L_8;
600 as_bad (_("expect :8 or :16 here"));
605 op->mode = PCREL | bsize;
612 get_operands (noperands, op_end, operand)
613 unsigned int noperands;
615 struct h8_op *operand;
628 get_operand (&ptr, operand + 0, 0, SRC);
632 get_operand (&ptr, operand + 1, 1, DST);
642 get_operand (&ptr, operand + 0, 0, SRC);
645 get_operand (&ptr, operand + 1, 1, DST);
655 /* Passed a pointer to a list of opcodes which use different
656 addressing modes, return the opcode which matches the opcodes
658 static struct h8_opcode *
659 get_specific (opcode, operands, size)
660 struct h8_opcode *opcode;
661 struct h8_op *operands;
664 struct h8_opcode *this_try = opcode;
667 unsigned int this_index = opcode->idx;
669 /* There's only one ldm/stm and it's easier to just
670 get out quick for them. */
671 if (strcmp (opcode->name, "stm.l") == 0
672 || strcmp (opcode->name, "ldm.l") == 0)
675 while (this_index == opcode->idx && !found)
680 if (this_try->noperands == 0)
684 this_size = this_try->how & SN;
685 if (this_size != size && (this_size != SB || size != SN))
692 for (i = 0; i < this_try->noperands && found; i++)
694 op_type op = this_try->args.nib[i];
695 int x = operands[i].mode;
697 if ((op & (DISP | REG)) == (DISP | REG)
698 && ((x & (DISP | REG)) == (DISP | REG)))
700 dispreg = operands[i].reg;
708 x = (x & ~L_P) | (Hmode ? L_32 : L_16);
710 op = (op & ~L_P) | (Hmode ? L_32 : L_16);
714 /* The size of the reg is v important. */
715 if ((op & SIZE) != (x & SIZE))
718 else if ((op & ABSJMP) && (x & ABS))
720 operands[i].mode &= ~ABS;
721 operands[i].mode |= ABSJMP;
722 /* But it may not be 24 bits long. */
725 operands[i].mode &= ~SIZE;
726 operands[i].mode |= L_16;
729 else if ((op & (KBIT | DBIT)) && (x & IMM))
731 /* This is ok if the immediate value is sensible. */
735 /* The size of the displacement is important. */
736 if ((op & SIZE) != (x & SIZE))
739 else if ((op & (DISP | IMM | ABS))
740 && (op & (DISP | IMM | ABS)) == (x & (DISP | IMM | ABS)))
742 /* Promote a L_24 to L_32 if it makes us match. */
743 if ((x & L_24) && (op & L_32))
748 /* Promote an L8 to L_16 if it makes us match. */
749 if (op & ABS && op & L_8 && op & DISP)
754 else if ((x & SIZE) != 0
755 && ((op & SIZE) != (x & SIZE)))
758 else if ((op & MACREG) != (x & MACREG))
762 else if ((op & MODE) != (x & MODE))
776 check_operand (operand, width, string)
777 struct h8_op *operand;
781 if (operand->exp.X_add_symbol == 0
782 && operand->exp.X_op_symbol == 0)
784 /* No symbol involved, let's look at offset, it's dangerous if
785 any of the high bits are not 0 or ff's, find out by oring or
786 anding with the width and seeing if the answer is 0 or all
789 if ((operand->exp.X_add_number & ~width) != 0 &&
790 (operand->exp.X_add_number | width) != (~0))
793 && (operand->exp.X_add_number & 0xff00) == 0xff00)
795 /* Just ignore this one - which happens when trying to
796 fit a 16 bit address truncated into an 8 bit address
797 of something like bset. */
801 as_warn (_("operand %s0x%lx out of range."), string,
802 (unsigned long) operand->exp.X_add_number);
808 /* RELAXMODE has one of 3 values:
810 0 Output a "normal" reloc, no relaxing possible for this insn/reloc
812 1 Output a relaxable 24bit absolute mov.w address relocation
813 (may relax into a 16bit absolute address).
815 2 Output a relaxable 16/24 absolute mov.b address relocation
816 (may relax into an 8bit absolute address). */
819 do_a_fix_imm (offset, operand, relaxmode)
821 struct h8_op *operand;
828 char *t = operand->mode & IMM ? "#" : "@";
830 if (operand->exp.X_add_symbol == 0)
832 char *bytes = frag_now->fr_literal + offset;
833 switch (operand->mode & SIZE)
836 check_operand (operand, 0x3, t);
837 bytes[0] |= (operand->exp.X_add_number) << 4;
840 check_operand (operand, 0x7, t);
841 bytes[0] |= (operand->exp.X_add_number) << 4;
844 check_operand (operand, 0xff, t);
845 bytes[0] = operand->exp.X_add_number;
848 check_operand (operand, 0xffff, t);
849 bytes[0] = operand->exp.X_add_number >> 8;
850 bytes[1] = operand->exp.X_add_number >> 0;
853 check_operand (operand, 0xffffff, t);
854 bytes[0] = operand->exp.X_add_number >> 16;
855 bytes[1] = operand->exp.X_add_number >> 8;
856 bytes[2] = operand->exp.X_add_number >> 0;
860 /* This should be done with bfd. */
861 bytes[0] = operand->exp.X_add_number >> 24;
862 bytes[1] = operand->exp.X_add_number >> 16;
863 bytes[2] = operand->exp.X_add_number >> 8;
864 bytes[3] = operand->exp.X_add_number >> 0;
867 idx = (relaxmode == 2) ? R_MOV24B1 : R_MOVL1;
868 fix_new_exp (frag_now, offset, 4, &operand->exp, 0, idx);
875 switch (operand->mode & SIZE)
880 where = (operand->mode & SIZE) == L_24 ? -1 : 0;
883 else if (relaxmode == 1)
889 as_bad (_("Can't work out size of operand.\n"));
897 operand->exp.X_add_number =
898 ((operand->exp.X_add_number & 0xffff) ^ 0x8000) - 0x8000;
904 operand->exp.X_add_number =
905 ((operand->exp.X_add_number & 0xff) ^ 0x80) - 0x80;
908 fix_new_exp (frag_now,
917 /* Now we know what sort of opcodes it is, let's build the bytes. */
919 build_bytes (this_try, operand)
920 struct h8_opcode *this_try;
921 struct h8_op *operand;
925 char *output = frag_more (this_try->length);
926 op_type *nibble_ptr = this_try->data.nib;
928 unsigned int nibble_count = 0;
936 if (!(this_try->inbase || Hmode))
937 as_warn (_("Opcode `%s' with these operand types not available in H8/300 mode"),
940 while (*nibble_ptr != E)
945 d = (c & (DST | SRC_IN_DST)) != 0;
953 if (c & (REG | IND | INC | DEC))
955 nib = operand[d].reg;
957 else if ((c & DISPREG) == (DISPREG))
964 absat = nibble_count / 2;
967 else if (c & (IMM | PCREL | ABS | ABSJMP | DISP))
970 immat = nibble_count / 2;
979 switch (operand[0].exp.X_add_number)
988 as_bad (_("Need #1 or #2 here"));
993 switch (operand[0].exp.X_add_number)
1003 as_warn (_("#4 not valid on H8/300."));
1008 as_bad (_("Need #1 or #2 here"));
1011 /* Stop it making a fix. */
1012 operand[0].mode = 0;
1017 operand[d].mode |= MEMRELAX;
1027 if (operand[0].mode == MACREG)
1028 /* stmac has mac[hl] as the first operand. */
1029 nib = 2 + operand[0].reg;
1031 /* ldmac has mac[hl] as the second operand. */
1032 nib = 2 + operand[1].reg;
1040 /* Disgusting. Why, oh why didn't someone ask us for advice
1041 on the assembler format. */
1042 if (strcmp (this_try->name, "stm.l") == 0
1043 || strcmp (this_try->name, "ldm.l") == 0)
1046 high = (operand[this_try->name[0] == 'l' ? 1 : 0].reg >> 8) & 0xf;
1047 low = operand[this_try->name[0] == 'l' ? 1 : 0].reg & 0xf;
1049 asnibbles[2] = high - low;
1050 asnibbles[7] = (this_try->name[0] == 'l') ? high : low;
1053 for (i = 0; i < this_try->length; i++)
1055 output[i] = (asnibbles[i * 2] << 4) | asnibbles[i * 2 + 1];
1058 /* Note if this is a movb instruction -- there's a special relaxation
1059 which only applies to them. */
1060 if (strcmp (this_try->name, "mov.b") == 0)
1063 /* Output any fixes. */
1064 for (i = 0; i < 2; i++)
1066 int x = operand[i].mode;
1068 if (x & (IMM | DISP))
1070 do_a_fix_imm (output - frag_now->fr_literal + immat,
1071 operand + i, x & MEMRELAX != 0);
1075 do_a_fix_imm (output - frag_now->fr_literal + absat,
1076 operand + i, x & MEMRELAX ? movb + 1 : 0);
1080 int size16 = x & L_16;
1081 int where = size16 ? 2 : 1;
1082 int size = size16 ? 2 : 1;
1083 int type = size16 ? R_PCRWORD : R_PCRBYTE;
1085 check_operand (operand + i, size16 ? 0x7fff : 0x7f, "@");
1087 if (operand[i].exp.X_add_number & 1)
1089 as_warn (_("branch operand has odd offset (%lx)\n"),
1090 (unsigned long) operand->exp.X_add_number);
1093 operand[i].exp.X_add_number -= 1;
1094 operand[i].exp.X_add_number =
1095 ((operand[i].exp.X_add_number & 0xff) ^ 0x80) - 0x80;
1097 fix_new_exp (frag_now,
1098 output - frag_now->fr_literal + where,
1104 else if (x & MEMIND)
1106 check_operand (operand + i, 0xff, "@@");
1107 fix_new_exp (frag_now,
1108 output - frag_now->fr_literal + 1,
1114 else if (x & ABSJMP)
1116 /* This jmp may be a jump or a branch. */
1118 check_operand (operand + i, Hmode ? 0xffffff : 0xffff, "@");
1119 if (operand[i].exp.X_add_number & 1)
1121 as_warn (_("branch operand has odd offset (%lx)\n"),
1122 (unsigned long) operand->exp.X_add_number);
1125 operand[i].exp.X_add_number =
1126 ((operand[i].exp.X_add_number & 0xffff) ^ 0x8000) - 0x8000;
1127 fix_new_exp (frag_now,
1128 output - frag_now->fr_literal,
1137 /* Try to give an intelligent error message for common and simple to
1140 clever_message (opcode, operand)
1141 struct h8_opcode *opcode;
1142 struct h8_op *operand;
1144 /* Find out if there was more than one possible opcode. */
1146 if ((opcode + 1)->idx != opcode->idx)
1150 /* Only one opcode of this flavour, try to guess which operand
1152 for (argn = 0; argn < opcode->noperands; argn++)
1154 switch (opcode->args.nib[argn])
1157 if (operand[argn].mode != RD16)
1159 as_bad (_("destination operand must be 16 bit register"));
1166 if (operand[argn].mode != RS8)
1168 as_bad (_("source operand must be 8 bit register"));
1174 if (operand[argn].mode != ABS16DST)
1176 as_bad (_("destination operand must be 16bit absolute address"));
1181 if (operand[argn].mode != RD8)
1183 as_bad (_("destination operand must be 8 bit register"));
1189 if (operand[argn].mode != ABS16SRC)
1191 as_bad (_("source operand must be 16bit absolute address"));
1199 as_bad (_("invalid operands"));
1202 /* This is the guts of the machine-dependent assembler. STR points to
1203 a machine dependent instruction. This function is supposed to emit
1204 the frags/bytes it assembles. */
1211 struct h8_op operand[2];
1212 struct h8_opcode *opcode;
1213 struct h8_opcode *prev_opcode;
1219 /* Drop leading whitespace. */
1223 /* Find the op code end. */
1224 for (op_start = op_end = str;
1225 *op_end != 0 && *op_end != ' ';
1237 if (op_end == op_start)
1239 as_bad (_("can't find opcode "));
1245 opcode = (struct h8_opcode *) hash_find (opcode_hash_control,
1250 as_bad (_("unknown opcode"));
1254 /* We used to set input_line_pointer to the result of get_operands,
1255 but that is wrong. Our caller assumes we don't change it. */
1257 (void) get_operands (opcode->noperands, op_end, operand);
1259 prev_opcode = opcode;
1279 opcode = get_specific (opcode, operand, size);
1283 /* Couldn't find an opcode which matched the operands. */
1284 char *where = frag_more (2);
1288 clever_message (prev_opcode, operand);
1292 if (opcode->size && dot)
1294 if (opcode->size != *dot)
1296 as_warn (_("mismatch between opcode size and operand size"));
1300 build_bytes (opcode, operand);
1304 tc_crawl_symbol_chain (headers)
1305 object_headers *headers ATTRIBUTE_UNUSED;
1307 printf (_("call to tc_crawl_symbol_chain \n"));
1311 md_undefined_symbol (name)
1312 char *name ATTRIBUTE_UNUSED;
1318 tc_headers_hook (headers)
1319 object_headers *headers ATTRIBUTE_UNUSED;
1321 printf (_("call to tc_headers_hook \n"));
1324 /* Various routines to kill one day */
1325 /* Equal to MAX_PRECISION in atof-ieee.c */
1326 #define MAX_LITTLENUMS 6
1328 /* Turn a string in input_line_pointer into a floating point constant
1329 of type TYPE, and store the appropriate bytes in *LITP. The number
1330 of LITTLENUMS emitted is stored in *SIZEP. An error message is
1331 returned, or NULL on OK. */
1334 md_atof (type, litP, sizeP)
1340 LITTLENUM_TYPE words[MAX_LITTLENUMS];
1341 LITTLENUM_TYPE *wordP;
1373 return _("Bad call to MD_ATOF()");
1375 t = atof_ieee (input_line_pointer, type, words);
1377 input_line_pointer = t;
1379 *sizeP = prec * sizeof (LITTLENUM_TYPE);
1380 for (wordP = words; prec--;)
1382 md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE));
1383 litP += sizeof (LITTLENUM_TYPE);
1388 CONST char *md_shortopts = "";
1389 struct option md_longopts[] = {
1390 {NULL, no_argument, NULL, 0}
1393 size_t md_longopts_size = sizeof (md_longopts);
1396 md_parse_option (c, arg)
1397 int c ATTRIBUTE_UNUSED;
1398 char *arg ATTRIBUTE_UNUSED;
1404 md_show_usage (stream)
1405 FILE *stream ATTRIBUTE_UNUSED;
1410 tc_aout_fix_to_chars ()
1412 printf (_("call to tc_aout_fix_to_chars \n"));
1417 md_convert_frag (headers, seg, fragP)
1418 object_headers *headers ATTRIBUTE_UNUSED;
1419 segT seg ATTRIBUTE_UNUSED;
1420 fragS *fragP ATTRIBUTE_UNUSED;
1422 printf (_("call to md_convert_frag \n"));
1427 md_section_align (seg, size)
1431 return ((size + (1 << section_alignment[(int) seg]) - 1)
1432 & (-1 << section_alignment[(int) seg]));
1436 md_apply_fix (fixP, val)
1440 char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
1442 switch (fixP->fx_size)
1448 *buf++ = (val >> 8);
1452 *buf++ = (val >> 24);
1453 *buf++ = (val >> 16);
1454 *buf++ = (val >> 8);
1463 md_estimate_size_before_relax (fragP, segment_type)
1464 register fragS *fragP ATTRIBUTE_UNUSED;
1465 register segT segment_type ATTRIBUTE_UNUSED;
1467 printf (_("call tomd_estimate_size_before_relax \n"));
1471 /* Put number into target byte order. */
1473 md_number_to_chars (ptr, use, nbytes)
1478 number_to_chars_bigendian (ptr, use, nbytes);
1482 md_pcrel_from (fixP)
1483 fixS *fixP ATTRIBUTE_UNUSED;
1489 tc_reloc_mangle (fix_ptr, intr, base)
1491 struct internal_reloc *intr;
1495 symbolS *symbol_ptr;
1497 symbol_ptr = fix_ptr->fx_addsy;
1499 /* If this relocation is attached to a symbol then it's ok
1501 if (fix_ptr->fx_r_type == TC_CONS_RELOC)
1503 /* cons likes to create reloc32's whatever the size of the reloc..
1505 switch (fix_ptr->fx_size)
1508 intr->r_type = R_RELLONG;
1511 intr->r_type = R_RELWORD;
1514 intr->r_type = R_RELBYTE;
1522 intr->r_type = fix_ptr->fx_r_type;
1525 intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where + base;
1526 intr->r_offset = fix_ptr->fx_offset;
1530 if (symbol_ptr->sy_number != -1)
1531 intr->r_symndx = symbol_ptr->sy_number;
1536 /* This case arises when a reference is made to `.'. */
1537 segsym = seg_info (S_GET_SEGMENT (symbol_ptr))->dot;
1539 intr->r_symndx = -1;
1542 intr->r_symndx = segsym->sy_number;
1543 intr->r_offset += S_GET_VALUE (symbol_ptr);
1548 intr->r_symndx = -1;