/* Assembly backend for the OpenRISC 1000.
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/* Assembly backend for the OpenRISC 1000.
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Copyright (C) 2002, 2003, 2005, 2007, 2009
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Copyright (C) 2002, 2003, 2005, 2007, 2009
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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Contributed by Damjan Lampret <lampret@opencores.org>.
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Contributed by Damjan Lampret <lampret@opencores.org>.
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Modified bu Johan Rydberg, <johan.rydberg@netinsight.se>.
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Modified bu Johan Rydberg, <johan.rydberg@netinsight.se>.
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Gyorgy Jeney <nog@sdf.lonestar.org>
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Gyorgy Jeney <nog@sdf.lonestar.org>
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Based upon a29k port.
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Based upon a29k port.
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This file is part of GAS, the GNU Assembler.
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This file is part of GAS, the GNU Assembler.
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GAS is free software; you can redistribute it and/or modify
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GAS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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any later version.
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GAS is distributed in the hope that it will be useful,
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GAS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with GAS; see the file COPYING. If not, write to
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along with GAS; see the file COPYING. If not, write to
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the Free Software Foundation, 51 Franklin Street - Fifth Floor,
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the Free Software Foundation, 51 Franklin Street - Fifth Floor,
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Boston, MA 02110-1301, USA. */
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Boston, MA 02110-1301, USA. */
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/* tc-a29k.c used as a template. */
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/* tc-a29k.c used as a template. */
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#include "safe-ctype.h"
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#include "safe-ctype.h"
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#include "as.h"
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#include "as.h"
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#include "opcode/or32.h"
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#include "opcode/or32.h"
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#include "struc-symbol.h"
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#include "struc-symbol.h"
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#include "elf/or32.h"
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#include "elf/or32.h"
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#define DEBUG 0
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#define DEBUG 0
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#ifndef REGISTER_PREFIX
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#ifndef REGISTER_PREFIX
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#define REGISTER_PREFIX '%'
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#define REGISTER_PREFIX '%'
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#endif
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#endif
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/* Make it easier to clone this machine desc into another one. */
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/* Make it easier to clone this machine desc into another one. */
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#define machine_opcode or32_opcode
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#define machine_opcode or32_opcode
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#define machine_opcodes or32_opcodes
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#define machine_opcodes or32_opcodes
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#define machine_ip or32_ip
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#define machine_ip or32_ip
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#define machine_it or32_it
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#define machine_it or32_it
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/* Handle of the OPCODE hash table. */
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/* Handle of the OPCODE hash table. */
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static struct hash_control *op_hash = NULL;
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static struct hash_control *op_hash = NULL;
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struct machine_it
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struct machine_it
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{
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{
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char * error;
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char * error;
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unsigned long opcode;
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unsigned long opcode;
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struct nlist * nlistp;
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struct nlist * nlistp;
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expressionS exp;
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expressionS exp;
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int pcrel;
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int pcrel;
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int reloc;
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int reloc;
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}
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}
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the_insn;
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the_insn;
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const pseudo_typeS md_pseudo_table[] =
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const pseudo_typeS md_pseudo_table[] =
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{
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{
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{"align", s_align_bytes, 4 },
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{"align", s_align_bytes, 4 },
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{"space", s_space, 0 },
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{"space", s_space, 0 },
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{"cputype", s_ignore, 0 },
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{"cputype", s_ignore, 0 },
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{"reg", s_lsym, 0 }, /* Register equate, same as equ. */
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{"reg", s_lsym, 0 }, /* Register equate, same as equ. */
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{"sect", s_ignore, 0 }, /* Creation of coff sections. */
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{"sect", s_ignore, 0 }, /* Creation of coff sections. */
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{"proc", s_ignore, 0 }, /* Start of a function. */
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{"proc", s_ignore, 0 }, /* Start of a function. */
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{"endproc", s_ignore, 0 }, /* Function end. */
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{"endproc", s_ignore, 0 }, /* Function end. */
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{"half", cons, 2 },
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{"half", cons, 2 },
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{"word", cons, 4 },
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{"word", cons, 4 },
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{NULL, 0, 0 },
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{NULL, 0, 0 },
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};
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};
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int md_short_jump_size = 4;
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int md_short_jump_size = 4;
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int md_long_jump_size = 4;
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int md_long_jump_size = 4;
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/* This array holds the chars that always start a comment.
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/* This array holds the chars that always start a comment.
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If the pre-processor is disabled, these aren't very useful. */
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If the pre-processor is disabled, these aren't very useful. */
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const char comment_chars[] = "#";
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const char comment_chars[] = "#";
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/* This array holds the chars that only start a comment at the beginning of
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/* This array holds the chars that only start a comment at the beginning of
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a line. If the line seems to have the form '# 123 filename'
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a line. If the line seems to have the form '# 123 filename'
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.line and .file directives will appear in the pre-processed output. */
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.line and .file directives will appear in the pre-processed output. */
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/* Note that input_file.c hand checks for '#' at the beginning of the
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/* Note that input_file.c hand checks for '#' at the beginning of the
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first line of the input file. This is because the compiler outputs
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first line of the input file. This is because the compiler outputs
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#NO_APP at the beginning of its output. */
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#NO_APP at the beginning of its output. */
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/* Also note that comments like this one will always work. */
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/* Also note that comments like this one will always work. */
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const char line_comment_chars[] = "#";
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const char line_comment_chars[] = "#";
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/* We needed an unused char for line separation to work around the
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/* We needed an unused char for line separation to work around the
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lack of macros, using sed and such. */
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lack of macros, using sed and such. */
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const char line_separator_chars[] = ";";
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const char line_separator_chars[] = ";";
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/* Chars that can be used to separate mant from exp in floating point nums. */
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/* Chars that can be used to separate mant from exp in floating point nums. */
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const char EXP_CHARS[] = "eE";
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const char EXP_CHARS[] = "eE";
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/* Chars that mean this number is a floating point constant.
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/* Chars that mean this number is a floating point constant.
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As in 0f12.456
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As in 0f12.456
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or 0d1.2345e12. */
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or 0d1.2345e12. */
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const char FLT_CHARS[] = "rRsSfFdDxXpP";
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const char FLT_CHARS[] = "rRsSfFdDxXpP";
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/* "l.jalr r9" precalculated opcode. */
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/* "l.jalr r9" precalculated opcode. */
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static unsigned long jalr_r9_opcode;
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static unsigned long jalr_r9_opcode;
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static void machine_ip (char *);
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static void machine_ip (char *);
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/* Set bits in machine opcode according to insn->encoding
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/* Set bits in machine opcode according to insn->encoding
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description and passed operand. */
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description and passed operand. */
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static void
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static void
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encode (const struct machine_opcode *insn,
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encode (const struct machine_opcode *insn,
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unsigned long *opcode,
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unsigned long *opcode,
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signed long param_val,
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signed long param_val,
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char param_ch)
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char param_ch)
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{
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{
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int opc_pos = 0;
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int opc_pos = 0;
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int param_pos = 0;
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int param_pos = 0;
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char *enc;
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char *enc;
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#if DEBUG
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#if DEBUG
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printf (" encode: opcode=%.8x param_val=%.8x abs=%.8x param_ch=%c\n",
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printf (" encode: opcode=%.8x param_val=%.8x abs=%.8x param_ch=%c\n",
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(unsigned int) *opcode,(unsigned int) param_val, abs (param_val), param_ch);
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(unsigned int) *opcode,(unsigned int) param_val, abs (param_val), param_ch);
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#endif
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#endif
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for (enc = insn->encoding; *enc != '\0'; enc++)
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for (enc = insn->encoding; *enc != '\0'; enc++)
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if (*enc == param_ch)
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if (*enc == param_ch)
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{
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{
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if (enc - 2 >= insn->encoding && (*(enc - 2) == '0') && (*(enc - 1) == 'x'))
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if (enc - 2 >= insn->encoding && (*(enc - 2) == '0') && (*(enc - 1) == 'x'))
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continue;
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continue;
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else
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else
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param_pos ++;
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param_pos ++;
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}
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}
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opc_pos = 32;
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opc_pos = 32;
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for (enc = insn->encoding; *enc != '\0';)
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for (enc = insn->encoding; *enc != '\0';)
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{
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{
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if ((*enc == '0') && (*(enc + 1) == 'x'))
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if ((*enc == '0') && (*(enc + 1) == 'x'))
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{
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{
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int tmp = strtol (enc, NULL, 16);
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int tmp = strtol (enc, NULL, 16);
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opc_pos -= 4;
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opc_pos -= 4;
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*opcode |= tmp << opc_pos;
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*opcode |= tmp << opc_pos;
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enc += 3;
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enc += 3;
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}
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}
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else if ((*enc == '0') || (*enc == '-'))
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else if ((*enc == '0') || (*enc == '-'))
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{
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{
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opc_pos--;
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opc_pos--;
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enc++;
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enc++;
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}
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}
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else if (*enc == '1')
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else if (*enc == '1')
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{
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{
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opc_pos--;
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opc_pos--;
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*opcode |= 1 << opc_pos;
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*opcode |= 1 << opc_pos;
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enc++;
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enc++;
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}
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}
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else if (*enc == param_ch)
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else if (*enc == param_ch)
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{
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{
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opc_pos--;
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opc_pos--;
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param_pos--;
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param_pos--;
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*opcode |= ((param_val >> param_pos) & 0x1) << opc_pos;
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*opcode |= ((param_val >> param_pos) & 0x1) << opc_pos;
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enc++;
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enc++;
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}
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}
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else if (ISALPHA (*enc))
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else if (ISALPHA (*enc))
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{
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{
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opc_pos--;
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opc_pos--;
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enc++;
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enc++;
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}
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}
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else
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else
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enc++;
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enc++;
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}
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}
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#if DEBUG
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#if DEBUG
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printf (" opcode=%.8lx\n", *opcode);
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printf (" opcode=%.8lx\n", *opcode);
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#endif
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#endif
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}
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}
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/* This function is called once, at assembler startup time. It should
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/* This function is called once, at assembler startup time. It should
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set up all the tables, etc., that the MD part of the assembler will
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set up all the tables, etc., that the MD part of the assembler will
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need. */
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need. */
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void
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void
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md_begin (void)
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md_begin (void)
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{
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{
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const char *retval = NULL;
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const char *retval = NULL;
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int lose = 0;
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int lose = 0;
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int skipnext = 0;
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int skipnext = 0;
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unsigned int i;
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unsigned int i;
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/* Hash up all the opcodes for fast use later. */
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/* Hash up all the opcodes for fast use later. */
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op_hash = hash_new ();
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op_hash = hash_new ();
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for (i = 0; i < or32_num_opcodes; i++)
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for (i = 0; i < or32_num_opcodes; i++)
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{
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{
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const char *name = machine_opcodes[i].name;
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const char *name = machine_opcodes[i].name;
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if (skipnext)
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if (skipnext)
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{
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{
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skipnext = 0;
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skipnext = 0;
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continue;
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continue;
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}
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}
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retval = hash_insert (op_hash, name, (void *) &machine_opcodes[i]);
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retval = hash_insert (op_hash, name, (void *) &machine_opcodes[i]);
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if (retval != NULL)
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if (retval != NULL)
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{
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{
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fprintf (stderr, "internal error: can't hash `%s': %s\n",
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fprintf (stderr, "internal error: can't hash `%s': %s\n",
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machine_opcodes[i].name, retval);
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machine_opcodes[i].name, retval);
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lose = 1;
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lose = 1;
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}
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}
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}
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}
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if (lose)
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if (lose)
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as_fatal (_("Broken assembler. No assembly attempted."));
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as_fatal (_("Broken assembler. No assembly attempted."));
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encode (&machine_opcodes[insn_index ("l.jalr")], &jalr_r9_opcode, 9, 'B');
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encode (&machine_opcodes[insn_index ("l.jalr")], &jalr_r9_opcode, 9, 'B');
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}
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}
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/* Returns non zero if instruction is to be used. */
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/* Returns non zero if instruction is to be used. */
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static int
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static int
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check_invalid_opcode (unsigned long opcode)
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check_invalid_opcode (unsigned long opcode)
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{
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{
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return opcode == jalr_r9_opcode;
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return opcode == jalr_r9_opcode;
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}
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}
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/* Assemble a single instruction. Its label has already been handled
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/* Assemble a single instruction. Its label has already been handled
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by the generic front end. We just parse opcode and operands, and
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by the generic front end. We just parse opcode and operands, and
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produce the bytes of data and relocation. */
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produce the bytes of data and relocation. */
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void
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void
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md_assemble (char *str)
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md_assemble (char *str)
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{
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{
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char *toP;
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char *toP;
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#if DEBUG
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#if DEBUG
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printf ("NEW INSTRUCTION\n");
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printf ("NEW INSTRUCTION\n");
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#endif
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#endif
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know (str);
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know (str);
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machine_ip (str);
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machine_ip (str);
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toP = frag_more (4);
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toP = frag_more (4);
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/* Put out the opcode. */
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/* Put out the opcode. */
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md_number_to_chars (toP, the_insn.opcode, 4);
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md_number_to_chars (toP, the_insn.opcode, 4);
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/* Put out the symbol-dependent stuff. */
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/* Put out the symbol-dependent stuff. */
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if (the_insn.reloc != BFD_RELOC_NONE)
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if (the_insn.reloc != BFD_RELOC_NONE)
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{
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{
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fix_new_exp (frag_now,
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fix_new_exp (frag_now,
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(toP - frag_now->fr_literal),
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(toP - frag_now->fr_literal),
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4, /* size */
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4, /* size */
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&the_insn.exp,
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&the_insn.exp,
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the_insn.pcrel,
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the_insn.pcrel,
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the_insn.reloc);
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the_insn.reloc);
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}
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}
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}
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}
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static int mask_or_shift = 0;
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static int mask_or_shift = 0;
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/*----------------------------------------------------------------------------*/
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/*!Parse an operand
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|
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We use some semantic information about the operand to determine its type.
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@param[in] s Pointer to start of the operand string
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@param[out] operandp The parsed operand expression
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@param[in] opt Non-zero (TRUE) if this operand is optional, zero
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(FALSE) otherwise.
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@param[in] is_reg Non-zero (TRUE) if this operand is a register, zero
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(FALSE) otherwise.
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@return Pointer to the operand string immediately after the operand just
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parsed. */
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/*----------------------------------------------------------------------------*/
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static char *
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static char *
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parse_operand (char *s, expressionS *operandp, int opt)
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parse_operand (char *s,
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expressionS *operandp,
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int opt,
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int is_reg)
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{
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{
|
char *save = input_line_pointer;
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char *save = input_line_pointer;
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char *new_pointer;
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char *new_pointer;
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#if DEBUG
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#if DEBUG
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printf (" PROCESS NEW OPERAND(%s) == %c (%d)\n", s, opt ? opt : '!', opt);
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printf (" PROCESS NEW OPERAND(%s): %s, %s\n", s,
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opt ? "optional" : "not optional",
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is_reg ? "register", "not register");
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#endif
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#endif
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input_line_pointer = s;
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input_line_pointer = s;
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if (strncasecmp (s, "HI(", 3) == 0)
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if (strncasecmp (s, "HI(", 3) == 0)
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{
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{
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mask_or_shift = BFD_RELOC_HI16;
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mask_or_shift = BFD_RELOC_HI16;
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|
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input_line_pointer += 3;
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input_line_pointer += 3;
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}
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}
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else if (strncasecmp (s, "LO(", 3) == 0)
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else if (strncasecmp (s, "LO(", 3) == 0)
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{
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{
|
mask_or_shift = BFD_RELOC_LO16;
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mask_or_shift = BFD_RELOC_LO16;
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|
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input_line_pointer += 3;
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input_line_pointer += 3;
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}
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}
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else
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else
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mask_or_shift = 0;
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mask_or_shift = 0;
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|
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if ((*s == '(') && (*(s+1) == 'r'))
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if ((*s == '(') && (*(s+1) == 'r'))
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s++;
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s++;
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|
|
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/* JPB 18-Aug-10: The old assumption was that any symbol starting with 'r'
|
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and followed by a digit was a register. That was fine when we prepended
|
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underscores, but not when that was dropped. We need to makes sure that
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this is a register operand. */
|
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if (is_reg)
|
|
{
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if ((*s == 'r') && ISDIGIT (*(s + 1)))
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if ((*s == 'r') && ISDIGIT (*(s + 1)))
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{
|
{
|
operandp->X_add_number = strtol (s + 1, NULL, 10);
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operandp->X_add_number = strtol (s + 1, NULL, 10);
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operandp->X_op = O_register;
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operandp->X_op = O_register;
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operandp->X_add_symbol = NULL;// Added to stop a know() in machine_ip()
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operandp->X_add_symbol = NULL;// Added to stop know() in machine_ip()
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operandp->X_op_symbol = NULL; // Added to stop a know() in machine_ip()
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operandp->X_op_symbol = NULL; // Added to stop know() in machine_ip()
|
// erroring out - it appears this wasn't
|
// erroring out - it appears this
|
// getting cleared sometimes. - JB 100718
|
// wasn't getting cleared sometimes. -
|
|
// JB 100718
|
|
}
|
|
else
|
|
{
|
|
as_bad (_("register expected"));
|
|
}
|
|
|
|
/* Skip the argument */
|
for (; (*s != ',') && (*s != '\0');)
|
for (; (*s != ',') && (*s != '\0');)
|
s++;
|
s++;
|
input_line_pointer = save;
|
input_line_pointer = save;
|
return s;
|
return s;
|
}
|
}
|
|
|
expression (operandp);
|
expression (operandp);
|
|
|
if (operandp->X_op == O_absent)
|
if (operandp->X_op == O_absent)
|
{
|
{
|
if (! opt)
|
if (! opt)
|
as_bad (_("missing operand"));
|
as_bad (_("missing operand"));
|
else
|
else
|
{
|
{
|
operandp->X_add_number = 0;
|
operandp->X_add_number = 0;
|
operandp->X_op = O_constant;
|
operandp->X_op = O_constant;
|
}
|
}
|
}
|
}
|
|
|
new_pointer = input_line_pointer;
|
new_pointer = input_line_pointer;
|
input_line_pointer = save;
|
input_line_pointer = save;
|
|
|
#if DEBUG
|
#if DEBUG
|
printf (" %s=parse_operand(%s): operandp->X_op = %u\n", new_pointer, s,
|
printf (" %s=parse_operand(%s): operandp->X_op = %u\n", new_pointer, s,
|
operandp->X_op);
|
operandp->X_op);
|
#endif
|
#endif
|
|
|
return new_pointer;
|
return new_pointer;
|
}
|
}
|
|
|
/* Instruction parsing. Takes a string containing the opcode.
|
/* Instruction parsing. Takes a string containing the opcode.
|
Operands are at input_line_pointer. Output is in the_insn.
|
Operands are at input_line_pointer. Output is in the_insn.
|
Warnings or errors are generated. */
|
Warnings or errors are generated. */
|
|
|
static void
|
static void
|
machine_ip (char *str)
|
machine_ip (char *str)
|
{
|
{
|
char *s;
|
char *s;
|
const char *args;
|
const char *args;
|
const struct machine_opcode *insn;
|
const struct machine_opcode *insn;
|
unsigned long opcode;
|
unsigned long opcode;
|
expressionS operand;
|
expressionS operand;
|
int reloc = BFD_RELOC_NONE;
|
int reloc = BFD_RELOC_NONE;
|
|
|
#if DEBUG
|
#if DEBUG
|
printf ("machine_ip(%s)\n", str);
|
printf ("machine_ip(%s)\n", str);
|
#endif
|
#endif
|
|
|
s = str;
|
s = str;
|
for (; ISALNUM (*s) || *s == '.' || *s == '_'; ++s)
|
for (; ISALNUM (*s) || *s == '.' || *s == '_'; ++s)
|
if (ISUPPER (*s))
|
if (ISUPPER (*s))
|
*s = TOLOWER (*s);
|
*s = TOLOWER (*s);
|
|
|
switch (*s)
|
switch (*s)
|
{
|
{
|
case '\0':
|
case '\0':
|
break;
|
break;
|
|
|
case ' ': /* FIXME-SOMEDAY more whitespace. */
|
case ' ': /* FIXME-SOMEDAY more whitespace. */
|
*s++ = '\0';
|
*s++ = '\0';
|
break;
|
break;
|
|
|
default:
|
default:
|
as_bad (_("unknown opcode1: `%s'"), str);
|
as_bad (_("unknown opcode1: `%s'"), str);
|
return;
|
return;
|
}
|
}
|
|
|
if ((insn = (struct machine_opcode *) hash_find (op_hash, str)) == NULL)
|
if ((insn = (struct machine_opcode *) hash_find (op_hash, str)) == NULL)
|
{
|
{
|
as_bad (_("unknown opcode2 `%s'."), str);
|
as_bad (_("unknown opcode2 `%s'."), str);
|
return;
|
return;
|
}
|
}
|
|
|
opcode = 0;
|
opcode = 0;
|
memset (&the_insn, '\0', sizeof (the_insn));
|
memset (&the_insn, '\0', sizeof (the_insn));
|
the_insn.reloc = BFD_RELOC_NONE;
|
the_insn.reloc = BFD_RELOC_NONE;
|
|
|
reloc = BFD_RELOC_NONE;
|
reloc = BFD_RELOC_NONE;
|
|
|
/* Build the opcode, checking as we go to make sure that the
|
/* Build the opcode, checking as we go to make sure that the
|
operands match.
|
operands match.
|
|
|
If an operand matches, we modify the_insn or opcode appropriately,
|
If an operand matches, we modify the_insn or opcode appropriately,
|
and do a "continue". If an operand fails to match, we "break". */
|
and do a "continue". If an operand fails to match, we "break". */
|
if (insn->args[0] != '\0')
|
if (insn->args[0] != '\0')
|
/* Prime the pump. */
|
/* Prime the pump. */
|
s = parse_operand (s,
|
s = parse_operand (s,
|
&operand,
|
&operand,
|
(insn->args[0] == 'I') ||
|
(insn->args[0] == 'I') ||
|
(strcmp(insn->name, "l.nop") == 0) );
|
(strcmp(insn->name, "l.nop") == 0),
|
|
'r' == insn->args[0]);
|
|
|
for (args = insn->args;; ++args)
|
for (args = insn->args;; ++args)
|
{
|
{
|
#if DEBUG
|
#if DEBUG
|
printf (" args = %s\n", args);
|
printf (" args = %s\n", args);
|
#endif
|
#endif
|
switch (*args)
|
switch (*args)
|
{
|
{
|
case '\0': /* End of args. */
|
case '\0': /* End of args. */
|
/* We have have 0 args, do the bazoooka! */
|
/* We have have 0 args, do the bazoooka! */
|
if (args == insn->args)
|
if (args == insn->args)
|
encode (insn, &opcode, 0, 0);
|
encode (insn, &opcode, 0, 0);
|
|
|
if (*s == '\0')
|
if (*s == '\0')
|
{
|
{
|
/* We are truly done. */
|
/* We are truly done. */
|
the_insn.opcode = opcode;
|
the_insn.opcode = opcode;
|
if (check_invalid_opcode (opcode))
|
if (check_invalid_opcode (opcode))
|
as_bad (_("instruction not allowed: %s"), str);
|
as_bad (_("instruction not allowed: %s"), str);
|
return;
|
return;
|
}
|
}
|
as_bad (_("too many operands: %s"), s);
|
as_bad (_("too many operands: %s"), s);
|
break;
|
break;
|
|
|
case ',': /* Must match a comma. */
|
case ',': /* Must match a comma. */
|
if (*s++ == ',')
|
if (*s++ == ',')
|
{
|
{
|
reloc = BFD_RELOC_NONE;
|
reloc = BFD_RELOC_NONE;
|
|
|
/* Parse next operand. */
|
/* Parse next operand. */
|
s = parse_operand (s, &operand, args[1] == 'I');
|
s = parse_operand (s, &operand, args[1] == 'I', 'r' == args[1]);
|
#if DEBUG
|
#if DEBUG
|
printf (" ',' case: operand->X_add_number = %d, *args = %s, *s = %s\n",
|
printf (" ',' case: operand->X_add_number = %d, *args = %s, *s = %s\n",
|
(int) operand.X_add_number, args, s);
|
(int) operand.X_add_number, args, s);
|
#endif
|
#endif
|
continue;
|
continue;
|
}
|
}
|
break;
|
break;
|
|
|
case '(': /* Must match a (. */
|
case '(': /* Must match a (. */
|
s = parse_operand (s, &operand, args[1] == 'I');
|
s = parse_operand (s, &operand, args[1] == 'I', 'r' == args[1]);
|
continue;
|
continue;
|
|
|
case ')': /* Must match a ). */
|
case ')': /* Must match a ). */
|
continue;
|
continue;
|
|
|
case 'r': /* A general register. */
|
case 'r': /* A general register. */
|
args++;
|
args++;
|
|
|
if (operand.X_op != O_register)
|
if (operand.X_op != O_register)
|
break; /* Only registers. */
|
break; /* Only registers. */
|
#if DEBUG
|
#if DEBUG
|
printf(" (operand.X_add_symbol == 0)=%d",
|
printf(" (operand.X_add_symbol == 0)=%d",
|
(operand.X_add_symbol == NULL));
|
(operand.X_add_symbol == NULL));
|
printf(" (operand.X_op_symbol(%x) == 0)=%d",
|
printf(" (operand.X_op_symbol(%x) == 0)=%d",
|
(unsigned int)operand.X_op_symbol,
|
(unsigned int)operand.X_op_symbol,
|
(operand.X_op_symbol == NULL));
|
(operand.X_op_symbol == NULL));
|
#endif
|
#endif
|
know (operand.X_add_symbol == NULL);
|
know (operand.X_add_symbol == NULL);
|
know (operand.X_op_symbol == NULL);
|
know (operand.X_op_symbol == NULL);
|
encode (insn, &opcode, operand.X_add_number, *args);
|
encode (insn, &opcode, operand.X_add_number, *args);
|
#if DEBUG
|
#if DEBUG
|
printf (" r: operand->X_op = %d\n", operand.X_op);
|
printf (" r: operand->X_op = %d\n", operand.X_op);
|
#endif
|
#endif
|
continue;
|
continue;
|
|
|
default:
|
default:
|
if (mask_or_shift)
|
if (mask_or_shift)
|
{
|
{
|
#if DEBUG
|
#if DEBUG
|
printf ("mask_or_shift = %d\n", mask_or_shift);
|
printf ("mask_or_shift = %d\n", mask_or_shift);
|
#endif
|
#endif
|
reloc = mask_or_shift;
|
reloc = mask_or_shift;
|
}
|
}
|
mask_or_shift = 0;
|
mask_or_shift = 0;
|
if (*s == '(')
|
if (*s == '(')
|
operand.X_op = O_constant;
|
operand.X_op = O_constant;
|
else if (*s == ')')
|
else if (*s == ')')
|
s += 1;
|
s += 1;
|
#if DEBUG
|
#if DEBUG
|
printf (" default case: operand->X_add_number = %d, *args = %s, *s = %s\n",(int) operand.X_add_number, args, s);
|
printf (" default case: operand->X_add_number = %d, *args = %s, *s = %s\n",(int) operand.X_add_number, args, s);
|
#endif
|
#endif
|
if (operand.X_op == O_constant)
|
if (operand.X_op == O_constant)
|
{
|
{
|
unsigned long add = operand.X_add_number;
|
unsigned long add = operand.X_add_number;
|
if (reloc == BFD_RELOC_NONE)
|
if (reloc == BFD_RELOC_NONE)
|
{
|
{
|
bfd_vma v, mask;
|
bfd_vma v, mask;
|
|
|
mask = 0x3ffffff;
|
mask = 0x3ffffff;
|
v = abs (operand.X_add_number) & ~ mask;
|
v = abs (operand.X_add_number) & ~ mask;
|
if (v)
|
if (v)
|
as_bad (_("call/jmp target out of range (1)"));
|
as_bad (_("call/jmp target out of range (1)"));
|
}
|
}
|
|
|
if (reloc == BFD_RELOC_HI16)
|
if (reloc == BFD_RELOC_HI16)
|
add = ((operand.X_add_number >> 16) & 0xffff);
|
add = ((operand.X_add_number >> 16) & 0xffff);
|
|
|
the_insn.pcrel = 0;
|
the_insn.pcrel = 0;
|
encode (insn, &opcode, add, *args);
|
encode (insn, &opcode, add, *args);
|
continue;
|
continue;
|
}
|
}
|
|
|
if (reloc == BFD_RELOC_NONE)
|
if (reloc == BFD_RELOC_NONE)
|
the_insn.reloc = BFD_RELOC_28_PCREL_S2;
|
the_insn.reloc = BFD_RELOC_28_PCREL_S2;
|
else
|
else
|
the_insn.reloc = reloc;
|
the_insn.reloc = reloc;
|
|
|
/* the_insn.reloc = insn->reloc; */
|
/* the_insn.reloc = insn->reloc; */
|
#if DEBUG
|
#if DEBUG
|
printf (" reloc sym=%d\n", the_insn.reloc);
|
printf (" reloc sym=%d\n", the_insn.reloc);
|
printf (" BFD_RELOC_NONE=%d\n", BFD_RELOC_NONE);
|
printf (" BFD_RELOC_NONE=%d\n", BFD_RELOC_NONE);
|
#endif
|
#endif
|
the_insn.exp = operand;
|
the_insn.exp = operand;
|
|
|
/* the_insn.reloc_offset = 1; */
|
/* the_insn.reloc_offset = 1; */
|
the_insn.pcrel = 1; /* Assume PC-relative jump. */
|
the_insn.pcrel = 1; /* Assume PC-relative jump. */
|
|
|
/* FIXME-SOON, Do we figure out whether abs later, after
|
/* FIXME-SOON, Do we figure out whether abs later, after
|
know sym val? */
|
know sym val? */
|
if (reloc == BFD_RELOC_LO16 || reloc == BFD_RELOC_HI16)
|
if (reloc == BFD_RELOC_LO16 || reloc == BFD_RELOC_HI16)
|
the_insn.pcrel = 0;
|
the_insn.pcrel = 0;
|
|
|
if (reloc == BFD_RELOC_NONE)
|
if (reloc == BFD_RELOC_NONE)
|
encode (insn, &opcode, operand.X_add_number, *args);
|
encode (insn, &opcode, operand.X_add_number, *args);
|
else
|
else
|
encode (insn, &opcode, 0, *args);
|
encode (insn, &opcode, 0, *args);
|
continue;
|
continue;
|
}
|
}
|
|
|
/* Types or values of args don't match. */
|
/* Types or values of args don't match. */
|
as_bad (_("invalid operands"));
|
as_bad (_("invalid operands"));
|
return;
|
return;
|
}
|
}
|
}
|
}
|
|
|
char *
|
char *
|
md_atof (int type, char * litP, int * sizeP)
|
md_atof (int type, char * litP, int * sizeP)
|
{
|
{
|
return ieee_md_atof (type, litP, sizeP, TRUE);
|
return ieee_md_atof (type, litP, sizeP, TRUE);
|
}
|
}
|
|
|
/* Write out big-endian. */
|
/* Write out big-endian. */
|
|
|
void
|
void
|
md_number_to_chars (char *buf, valueT val, int n)
|
md_number_to_chars (char *buf, valueT val, int n)
|
{
|
{
|
number_to_chars_bigendian (buf, val, n);
|
number_to_chars_bigendian (buf, val, n);
|
}
|
}
|
|
|
void
|
void
|
md_apply_fix (fixS * fixP, valueT * val, segT seg ATTRIBUTE_UNUSED)
|
md_apply_fix (fixS * fixP, valueT * val, segT seg ATTRIBUTE_UNUSED)
|
{
|
{
|
bfd_byte *buf;
|
bfd_byte *buf;
|
long insn;
|
long insn;
|
|
|
buf = (bfd_byte *) (fixP->fx_where + fixP->fx_frag->fr_literal);
|
buf = (bfd_byte *) (fixP->fx_where + fixP->fx_frag->fr_literal);
|
|
|
#if DEBUG
|
#if DEBUG
|
printf ("md_apply_fix *val=%x fixP->fx_r_type=%i sym=%s\n",(unsigned int)*val,
|
printf ("md_apply_fix *val=%x fixP->fx_r_type=%i sym=%s\n",(unsigned int)*val,
|
fixP->fx_r_type, fixP->fx_addsy ? fixP->fx_addsy->bsym->name : "(none)");
|
fixP->fx_r_type, fixP->fx_addsy ? fixP->fx_addsy->bsym->name : "(none)");
|
#endif
|
#endif
|
|
|
if ((fixP->fx_addsy == (symbolS *) NULL) && !fixP->fx_pcrel)
|
if ((fixP->fx_addsy == (symbolS *) NULL) && !fixP->fx_pcrel)
|
fixP->fx_done = 1;
|
fixP->fx_done = 1;
|
|
|
switch (fixP->fx_r_type)
|
switch (fixP->fx_r_type)
|
{
|
{
|
case BFD_RELOC_32: /* XXXXXXXX pattern in a word. */
|
case BFD_RELOC_32: /* XXXXXXXX pattern in a word. */
|
#if DEBUG
|
#if DEBUG
|
printf ("reloc_const: val=%x\n", (unsigned int) *val);
|
printf ("reloc_const: val=%x\n", (unsigned int) *val);
|
#endif
|
#endif
|
/* If we are deleting this reloc entry, we must fill in the
|
/* If we are deleting this reloc entry, we must fill in the
|
value now. This can happen if we have a .word which is not
|
value now. This can happen if we have a .word which is not
|
resolved when it appears but is later defined. We also need
|
resolved when it appears but is later defined. We also need
|
to fill in the value if this is an embedded PIC switch table
|
to fill in the value if this is an embedded PIC switch table
|
entry. */
|
entry. */
|
if (fixP->fx_done)
|
if (fixP->fx_done)
|
md_number_to_chars ((char *) buf, *val, 4);
|
md_number_to_chars ((char *) buf, *val, 4);
|
break;
|
break;
|
|
|
case BFD_RELOC_16: /* XXXX0000 pattern in a word. */
|
case BFD_RELOC_16: /* XXXX0000 pattern in a word. */
|
#if DEBUG
|
#if DEBUG
|
printf ("reloc_const: val=%x\n", (unsigned int)*val);
|
printf ("reloc_const: val=%x\n", (unsigned int)*val);
|
#endif
|
#endif
|
/* If we are deleting this reloc entry, we must fill in the
|
/* If we are deleting this reloc entry, we must fill in the
|
value now. */
|
value now. */
|
gas_assert (fixP->fx_size == 2);
|
gas_assert (fixP->fx_size == 2);
|
if (fixP->fx_done)
|
if (fixP->fx_done)
|
md_number_to_chars ((char *) buf, *val, 2);
|
md_number_to_chars ((char *) buf, *val, 2);
|
break;
|
break;
|
|
|
case BFD_RELOC_8: /* XX000000 pattern in a word. */
|
case BFD_RELOC_8: /* XX000000 pattern in a word. */
|
case BFD_RELOC_LO16: /* 0000XXXX pattern in a word. */
|
case BFD_RELOC_LO16: /* 0000XXXX pattern in a word. */
|
#if DEBUG
|
#if DEBUG
|
printf ("reloc_const: val=%x\n", (unsigned int)*val);
|
printf ("reloc_const: val=%x\n", (unsigned int)*val);
|
#endif
|
#endif
|
break;
|
break;
|
|
|
case BFD_RELOC_HI16: /* 0000XXXX pattern in a word. */
|
case BFD_RELOC_HI16: /* 0000XXXX pattern in a word. */
|
#if DEBUG
|
#if DEBUG
|
printf ("reloc_consth: val=%x\n", (unsigned int)*val);
|
printf ("reloc_consth: val=%x\n", (unsigned int)*val);
|
#endif
|
#endif
|
break;
|
break;
|
|
|
case BFD_RELOC_28_PCREL_S2: /* 0000XXXX pattern in a word. */
|
case BFD_RELOC_28_PCREL_S2: /* 0000XXXX pattern in a word. */
|
#if DEBUG
|
#if DEBUG
|
printf("reloc_pcrel: *val=%x done=%d fixP->fx_pcrel=%i line=%i\n",
|
printf("reloc_pcrel: *val=%x done=%d fixP->fx_pcrel=%i line=%i\n",
|
(unsigned int) *val, fixP->fx_done, fixP->fx_pcrel, fixP->fx_line);
|
(unsigned int) *val, fixP->fx_done, fixP->fx_pcrel, fixP->fx_line);
|
#endif
|
#endif
|
if ((*val & 0x3) != 0)
|
if ((*val & 0x3) != 0)
|
as_bad_where (fixP->fx_file, fixP->fx_line,
|
as_bad_where (fixP->fx_file, fixP->fx_line,
|
_("Branch to odd address (%lx)"), (long) *val);
|
_("Branch to odd address (%lx)"), (long) *val);
|
|
|
/*
|
/*
|
* We need to save the bits in the instruction since fixup_segment()
|
* We need to save the bits in the instruction since fixup_segment()
|
* might be deleting the relocation entry (i.e., a branch within
|
* might be deleting the relocation entry (i.e., a branch within
|
* the current segment).
|
* the current segment).
|
*/
|
*/
|
if (! fixP->fx_done)
|
if (! fixP->fx_done)
|
break;
|
break;
|
|
|
/* update old instruction data */
|
/* update old instruction data */
|
if (target_big_endian)
|
if (target_big_endian)
|
insn = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
|
insn = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
|
else
|
else
|
insn = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0];
|
insn = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0];
|
insn |= (*val >> 2) & 0x03ffffff;
|
insn |= (*val >> 2) & 0x03ffffff;
|
md_number_to_chars ((char *) buf, insn, 4);
|
md_number_to_chars ((char *) buf, insn, 4);
|
#if DEBUG
|
#if DEBUG
|
printf("Resulting instruction: %08x\n", (unsigned int)insn);
|
printf("Resulting instruction: %08x\n", (unsigned int)insn);
|
#endif
|
#endif
|
break;
|
break;
|
|
|
case BFD_RELOC_VTABLE_INHERIT:
|
case BFD_RELOC_VTABLE_INHERIT:
|
case BFD_RELOC_VTABLE_ENTRY:
|
case BFD_RELOC_VTABLE_ENTRY:
|
fixP->fx_done = 0;
|
fixP->fx_done = 0;
|
break;
|
break;
|
|
|
case BFD_RELOC_NONE:
|
case BFD_RELOC_NONE:
|
default:
|
default:
|
as_bad (_("bad relocation type: 0x%02x"), fixP->fx_r_type);
|
as_bad (_("bad relocation type: 0x%02x"), fixP->fx_r_type);
|
break;
|
break;
|
}
|
}
|
|
|
fixP->fx_addnumber = *val; /* Remember value for emit_reloc. */
|
fixP->fx_addnumber = *val; /* Remember value for emit_reloc. */
|
}
|
}
|
|
|
/* Should never be called for or32. */
|
/* Should never be called for or32. */
|
|
|
void
|
void
|
md_create_short_jump (char * ptr ATTRIBUTE_UNUSED,
|
md_create_short_jump (char * ptr ATTRIBUTE_UNUSED,
|
addressT from_addr ATTRIBUTE_UNUSED,
|
addressT from_addr ATTRIBUTE_UNUSED,
|
addressT to_addr ATTRIBUTE_UNUSED,
|
addressT to_addr ATTRIBUTE_UNUSED,
|
fragS * frag ATTRIBUTE_UNUSED,
|
fragS * frag ATTRIBUTE_UNUSED,
|
symbolS * to_symbol ATTRIBUTE_UNUSED)
|
symbolS * to_symbol ATTRIBUTE_UNUSED)
|
{
|
{
|
as_fatal ("or32_create_short_jmp\n");
|
as_fatal ("or32_create_short_jmp\n");
|
}
|
}
|
|
|
/* Should never be called for or32. */
|
/* Should never be called for or32. */
|
|
|
void
|
void
|
md_convert_frag (bfd * headers ATTRIBUTE_UNUSED,
|
md_convert_frag (bfd * headers ATTRIBUTE_UNUSED,
|
segT seg ATTRIBUTE_UNUSED,
|
segT seg ATTRIBUTE_UNUSED,
|
fragS * fragP ATTRIBUTE_UNUSED)
|
fragS * fragP ATTRIBUTE_UNUSED)
|
{
|
{
|
as_fatal ("or32_convert_frag\n");
|
as_fatal ("or32_convert_frag\n");
|
}
|
}
|
|
|
/* Should never be called for or32. */
|
/* Should never be called for or32. */
|
|
|
void
|
void
|
md_create_long_jump (char * ptr ATTRIBUTE_UNUSED,
|
md_create_long_jump (char * ptr ATTRIBUTE_UNUSED,
|
addressT from_addr ATTRIBUTE_UNUSED,
|
addressT from_addr ATTRIBUTE_UNUSED,
|
addressT to_addr ATTRIBUTE_UNUSED,
|
addressT to_addr ATTRIBUTE_UNUSED,
|
fragS * frag ATTRIBUTE_UNUSED,
|
fragS * frag ATTRIBUTE_UNUSED,
|
symbolS * to_symbol ATTRIBUTE_UNUSED)
|
symbolS * to_symbol ATTRIBUTE_UNUSED)
|
{
|
{
|
as_fatal ("or32_create_long_jump\n");
|
as_fatal ("or32_create_long_jump\n");
|
}
|
}
|
|
|
/* Should never be called for or32. */
|
/* Should never be called for or32. */
|
|
|
int
|
int
|
md_estimate_size_before_relax (fragS * fragP ATTRIBUTE_UNUSED,
|
md_estimate_size_before_relax (fragS * fragP ATTRIBUTE_UNUSED,
|
segT segtype ATTRIBUTE_UNUSED)
|
segT segtype ATTRIBUTE_UNUSED)
|
{
|
{
|
as_fatal ("or32_estimate_size_before_relax\n");
|
as_fatal ("or32_estimate_size_before_relax\n");
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Translate internal representation of relocation info to target format.
|
/* Translate internal representation of relocation info to target format.
|
|
|
On sparc/29k: first 4 bytes are normal unsigned long address, next three
|
On sparc/29k: first 4 bytes are normal unsigned long address, next three
|
bytes are index, most sig. byte first. Byte 7 is broken up with
|
bytes are index, most sig. byte first. Byte 7 is broken up with
|
bit 7 as external, bits 6 & 5 unused, and the lower
|
bit 7 as external, bits 6 & 5 unused, and the lower
|
five bits as relocation type. Next 4 bytes are long addend. */
|
five bits as relocation type. Next 4 bytes are long addend. */
|
/* Thanx and a tip of the hat to Michael Bloom, mb@ttidca.tti.com. */
|
/* Thanx and a tip of the hat to Michael Bloom, mb@ttidca.tti.com. */
|
|
|
#ifdef OBJ_AOUT
|
#ifdef OBJ_AOUT
|
void
|
void
|
tc_aout_fix_to_chars (char *where,
|
tc_aout_fix_to_chars (char *where,
|
fixS *fixP,
|
fixS *fixP,
|
relax_addressT segment_address_in_file)
|
relax_addressT segment_address_in_file)
|
{
|
{
|
long r_symbolnum;
|
long r_symbolnum;
|
|
|
#if DEBUG
|
#if DEBUG
|
printf ("tc_aout_fix_to_chars\n");
|
printf ("tc_aout_fix_to_chars\n");
|
#endif
|
#endif
|
|
|
know (fixP->fx_r_type < BFD_RELOC_NONE);
|
know (fixP->fx_r_type < BFD_RELOC_NONE);
|
know (fixP->fx_addsy != NULL);
|
know (fixP->fx_addsy != NULL);
|
|
|
md_number_to_chars
|
md_number_to_chars
|
(where,
|
(where,
|
fixP->fx_frag->fr_address + fixP->fx_where - segment_address_in_file,
|
fixP->fx_frag->fr_address + fixP->fx_where - segment_address_in_file,
|
4);
|
4);
|
|
|
r_symbolnum = (S_IS_DEFINED (fixP->fx_addsy)
|
r_symbolnum = (S_IS_DEFINED (fixP->fx_addsy)
|
? S_GET_TYPE (fixP->fx_addsy)
|
? S_GET_TYPE (fixP->fx_addsy)
|
: fixP->fx_addsy->sy_number);
|
: fixP->fx_addsy->sy_number);
|
|
|
where[4] = (r_symbolnum >> 16) & 0x0ff;
|
where[4] = (r_symbolnum >> 16) & 0x0ff;
|
where[5] = (r_symbolnum >> 8) & 0x0ff;
|
where[5] = (r_symbolnum >> 8) & 0x0ff;
|
where[6] = r_symbolnum & 0x0ff;
|
where[6] = r_symbolnum & 0x0ff;
|
where[7] = (((!S_IS_DEFINED (fixP->fx_addsy)) << 7) & 0x80) | (0 & 0x60) | (fixP->fx_r_type & 0x1F);
|
where[7] = (((!S_IS_DEFINED (fixP->fx_addsy)) << 7) & 0x80) | (0 & 0x60) | (fixP->fx_r_type & 0x1F);
|
|
|
/* Also easy. */
|
/* Also easy. */
|
md_number_to_chars (&where[8], fixP->fx_addnumber, 4);
|
md_number_to_chars (&where[8], fixP->fx_addnumber, 4);
|
}
|
}
|
|
|
#endif /* OBJ_AOUT */
|
#endif /* OBJ_AOUT */
|
|
|
const char *md_shortopts = "";
|
const char *md_shortopts = "";
|
|
|
struct option md_longopts[] =
|
struct option md_longopts[] =
|
{
|
{
|
{ NULL, no_argument, NULL, 0 }
|
{ NULL, no_argument, NULL, 0 }
|
};
|
};
|
size_t md_longopts_size = sizeof (md_longopts);
|
size_t md_longopts_size = sizeof (md_longopts);
|
|
|
int
|
int
|
md_parse_option (int c ATTRIBUTE_UNUSED, char * arg ATTRIBUTE_UNUSED)
|
md_parse_option (int c ATTRIBUTE_UNUSED, char * arg ATTRIBUTE_UNUSED)
|
{
|
{
|
return 0;
|
return 0;
|
}
|
}
|
|
|
void
|
void
|
md_show_usage (FILE * stream ATTRIBUTE_UNUSED)
|
md_show_usage (FILE * stream ATTRIBUTE_UNUSED)
|
{
|
{
|
}
|
}
|
|
|
/* This is called when a line is unrecognized. This is used to handle
|
/* This is called when a line is unrecognized. This is used to handle
|
definitions of or32 style local labels. */
|
definitions of or32 style local labels. */
|
|
|
int
|
int
|
or32_unrecognized_line (int c)
|
or32_unrecognized_line (int c)
|
{
|
{
|
int lab;
|
int lab;
|
char *s;
|
char *s;
|
|
|
if (c != '$'
|
if (c != '$'
|
|| ! ISDIGIT ((unsigned char) input_line_pointer[0]))
|
|| ! ISDIGIT ((unsigned char) input_line_pointer[0]))
|
return 0;
|
return 0;
|
|
|
s = input_line_pointer;
|
s = input_line_pointer;
|
|
|
lab = 0;
|
lab = 0;
|
while (ISDIGIT ((unsigned char) *s))
|
while (ISDIGIT ((unsigned char) *s))
|
{
|
{
|
lab = lab * 10 + *s - '0';
|
lab = lab * 10 + *s - '0';
|
++s;
|
++s;
|
}
|
}
|
|
|
if (*s != ':')
|
if (*s != ':')
|
/* Not a label definition. */
|
/* Not a label definition. */
|
return 0;
|
return 0;
|
|
|
if (dollar_label_defined (lab))
|
if (dollar_label_defined (lab))
|
{
|
{
|
as_bad (_("label \"$%d\" redefined"), lab);
|
as_bad (_("label \"$%d\" redefined"), lab);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
define_dollar_label (lab);
|
define_dollar_label (lab);
|
colon (dollar_label_name (lab, 0));
|
colon (dollar_label_name (lab, 0));
|
input_line_pointer = s + 1;
|
input_line_pointer = s + 1;
|
|
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/* Default the values of symbols known that should be "predefined". We
|
/* Default the values of symbols known that should be "predefined". We
|
don't bother to predefine them unless you actually use one, since there
|
don't bother to predefine them unless you actually use one, since there
|
are a lot of them. */
|
are a lot of them. */
|
|
|
symbolS *
|
symbolS *
|
md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
|
md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
|
{
|
{
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Parse an operand that is machine-specific. */
|
/* Parse an operand that is machine-specific. */
|
|
|
void
|
void
|
md_operand (expressionS *expressionP)
|
md_operand (expressionS *expressionP)
|
{
|
{
|
#if DEBUG
|
#if DEBUG
|
printf (" md_operand(input_line_pointer = %s)\n", input_line_pointer);
|
printf (" md_operand(input_line_pointer = %s)\n", input_line_pointer);
|
#endif
|
#endif
|
|
|
if (input_line_pointer[0] == REGISTER_PREFIX && input_line_pointer[1] == 'r')
|
if (input_line_pointer[0] == REGISTER_PREFIX && input_line_pointer[1] == 'r')
|
{
|
{
|
/* We have a numeric register expression. No biggy. */
|
/* We have a numeric register expression. No biggy. */
|
input_line_pointer += 2; /* Skip %r */
|
input_line_pointer += 2; /* Skip %r */
|
(void) expression (expressionP);
|
(void) expression (expressionP);
|
|
|
if (expressionP->X_op != O_constant
|
if (expressionP->X_op != O_constant
|
|| expressionP->X_add_number > 255)
|
|| expressionP->X_add_number > 255)
|
as_bad (_("Invalid expression after %%%%\n"));
|
as_bad (_("Invalid expression after %%%%\n"));
|
expressionP->X_op = O_register;
|
expressionP->X_op = O_register;
|
}
|
}
|
else if (input_line_pointer[0] == '&')
|
else if (input_line_pointer[0] == '&')
|
{
|
{
|
/* We are taking the 'address' of a register...this one is not
|
/* We are taking the 'address' of a register...this one is not
|
in the manual, but it *is* in traps/fpsymbol.h! What they
|
in the manual, but it *is* in traps/fpsymbol.h! What they
|
seem to want is the register number, as an absolute number. */
|
seem to want is the register number, as an absolute number. */
|
input_line_pointer++; /* Skip & */
|
input_line_pointer++; /* Skip & */
|
(void) expression (expressionP);
|
(void) expression (expressionP);
|
|
|
if (expressionP->X_op != O_register)
|
if (expressionP->X_op != O_register)
|
as_bad (_("invalid register in & expression"));
|
as_bad (_("invalid register in & expression"));
|
else
|
else
|
expressionP->X_op = O_constant;
|
expressionP->X_op = O_constant;
|
}
|
}
|
else if (input_line_pointer[0] == '$'
|
else if (input_line_pointer[0] == '$'
|
&& ISDIGIT ((unsigned char) input_line_pointer[1]))
|
&& ISDIGIT ((unsigned char) input_line_pointer[1]))
|
{
|
{
|
long lab;
|
long lab;
|
char *name;
|
char *name;
|
symbolS *sym;
|
symbolS *sym;
|
|
|
/* This is a local label. */
|
/* This is a local label. */
|
++input_line_pointer;
|
++input_line_pointer;
|
lab = (long) get_absolute_expression ();
|
lab = (long) get_absolute_expression ();
|
|
|
if (dollar_label_defined (lab))
|
if (dollar_label_defined (lab))
|
{
|
{
|
name = dollar_label_name (lab, 0);
|
name = dollar_label_name (lab, 0);
|
sym = symbol_find (name);
|
sym = symbol_find (name);
|
}
|
}
|
else
|
else
|
{
|
{
|
name = dollar_label_name (lab, 1);
|
name = dollar_label_name (lab, 1);
|
sym = symbol_find_or_make (name);
|
sym = symbol_find_or_make (name);
|
}
|
}
|
|
|
expressionP->X_op = O_symbol;
|
expressionP->X_op = O_symbol;
|
expressionP->X_add_symbol = sym;
|
expressionP->X_add_symbol = sym;
|
expressionP->X_add_number = 0;
|
expressionP->X_add_number = 0;
|
}
|
}
|
else if (input_line_pointer[0] == '$')
|
else if (input_line_pointer[0] == '$')
|
{
|
{
|
char *s;
|
char *s;
|
char type;
|
char type;
|
int fieldnum, fieldlimit;
|
int fieldnum, fieldlimit;
|
LITTLENUM_TYPE floatbuf[8];
|
LITTLENUM_TYPE floatbuf[8];
|
|
|
/* $float(), $doubleN(), or $extendN() convert floating values
|
/* $float(), $doubleN(), or $extendN() convert floating values
|
to integers. */
|
to integers. */
|
s = input_line_pointer;
|
s = input_line_pointer;
|
|
|
++s;
|
++s;
|
|
|
fieldnum = 0;
|
fieldnum = 0;
|
if (strncmp (s, "double", sizeof "double" - 1) == 0)
|
if (strncmp (s, "double", sizeof "double" - 1) == 0)
|
{
|
{
|
s += sizeof "double" - 1;
|
s += sizeof "double" - 1;
|
type = 'd';
|
type = 'd';
|
fieldlimit = 2;
|
fieldlimit = 2;
|
}
|
}
|
else if (strncmp (s, "float", sizeof "float" - 1) == 0)
|
else if (strncmp (s, "float", sizeof "float" - 1) == 0)
|
{
|
{
|
s += sizeof "float" - 1;
|
s += sizeof "float" - 1;
|
type = 'f';
|
type = 'f';
|
fieldlimit = 1;
|
fieldlimit = 1;
|
}
|
}
|
else if (strncmp (s, "extend", sizeof "extend" - 1) == 0)
|
else if (strncmp (s, "extend", sizeof "extend" - 1) == 0)
|
{
|
{
|
s += sizeof "extend" - 1;
|
s += sizeof "extend" - 1;
|
type = 'x';
|
type = 'x';
|
fieldlimit = 4;
|
fieldlimit = 4;
|
}
|
}
|
else
|
else
|
return;
|
return;
|
|
|
if (ISDIGIT (*s))
|
if (ISDIGIT (*s))
|
{
|
{
|
fieldnum = *s - '0';
|
fieldnum = *s - '0';
|
++s;
|
++s;
|
}
|
}
|
if (fieldnum >= fieldlimit)
|
if (fieldnum >= fieldlimit)
|
return;
|
return;
|
|
|
SKIP_WHITESPACE ();
|
SKIP_WHITESPACE ();
|
if (*s != '(')
|
if (*s != '(')
|
return;
|
return;
|
++s;
|
++s;
|
SKIP_WHITESPACE ();
|
SKIP_WHITESPACE ();
|
|
|
s = atof_ieee (s, type, floatbuf);
|
s = atof_ieee (s, type, floatbuf);
|
if (s == NULL)
|
if (s == NULL)
|
return;
|
return;
|
s = s;
|
s = s;
|
|
|
SKIP_WHITESPACE ();
|
SKIP_WHITESPACE ();
|
if (*s != ')')
|
if (*s != ')')
|
return;
|
return;
|
++s;
|
++s;
|
SKIP_WHITESPACE ();
|
SKIP_WHITESPACE ();
|
|
|
input_line_pointer = s;
|
input_line_pointer = s;
|
expressionP->X_op = O_constant;
|
expressionP->X_op = O_constant;
|
expressionP->X_unsigned = 1;
|
expressionP->X_unsigned = 1;
|
expressionP->X_add_number = ((floatbuf[fieldnum * 2]
|
expressionP->X_add_number = ((floatbuf[fieldnum * 2]
|
<< LITTLENUM_NUMBER_OF_BITS)
|
<< LITTLENUM_NUMBER_OF_BITS)
|
+ floatbuf[fieldnum * 2 + 1]);
|
+ floatbuf[fieldnum * 2 + 1]);
|
}
|
}
|
}
|
}
|
|
|
/* Round up a section size to the appropriate boundary. */
|
/* Round up a section size to the appropriate boundary. */
|
|
|
valueT
|
valueT
|
md_section_align (asection * seg, valueT addr ATTRIBUTE_UNUSED)
|
md_section_align (asection * seg, valueT addr ATTRIBUTE_UNUSED)
|
{
|
{
|
int align = bfd_get_section_alignment (stdoutput, seg);
|
int align = bfd_get_section_alignment (stdoutput, seg);
|
return ((addr + (1 << align) - 1) & (-1 << align));
|
return ((addr + (1 << align) - 1) & (-1 << align));
|
}
|
}
|
|
|
/* Exactly what point is a PC-relative offset relative TO?
|
/* Exactly what point is a PC-relative offset relative TO?
|
On the 29000, they're relative to the address of the instruction,
|
On the 29000, they're relative to the address of the instruction,
|
which we have set up as the address of the fixup too. */
|
which we have set up as the address of the fixup too. */
|
|
|
long
|
long
|
md_pcrel_from (fixS *fixP)
|
md_pcrel_from (fixS *fixP)
|
{
|
{
|
return fixP->fx_where + fixP->fx_frag->fr_address;
|
return fixP->fx_where + fixP->fx_frag->fr_address;
|
}
|
}
|
|
|
/* Generate a reloc for a fixup. */
|
/* Generate a reloc for a fixup. */
|
|
|
arelent *
|
arelent *
|
tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
|
tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
|
{
|
{
|
arelent *reloc;
|
arelent *reloc;
|
|
|
reloc = xmalloc (sizeof (arelent));
|
reloc = xmalloc (sizeof (arelent));
|
reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
|
reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
|
*reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
|
*reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
|
reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
|
reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
|
reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
|
reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
|
|
|
if (reloc->howto == (reloc_howto_type *) NULL)
|
if (reloc->howto == (reloc_howto_type *) NULL)
|
{
|
{
|
as_bad_where (fixp->fx_file, fixp->fx_line,
|
as_bad_where (fixp->fx_file, fixp->fx_line,
|
_("reloc %d not supported by object file format"),
|
_("reloc %d not supported by object file format"),
|
(int) fixp->fx_r_type);
|
(int) fixp->fx_r_type);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
|
if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
|
reloc->address = fixp->fx_offset;
|
reloc->address = fixp->fx_offset;
|
else if (fixp->fx_pcrel)
|
else if (fixp->fx_pcrel)
|
{
|
{
|
bfd_vma pcrel_address;
|
bfd_vma pcrel_address;
|
pcrel_address = reloc->address;
|
pcrel_address = reloc->address;
|
if (OUTPUT_FLAVOR == bfd_target_elf_flavour)
|
if (OUTPUT_FLAVOR == bfd_target_elf_flavour)
|
{
|
{
|
/* At this point, fx_addnumber is "symbol offset - pcrel_address".
|
/* At this point, fx_addnumber is "symbol offset - pcrel_address".
|
Relocations want only the symbol offset. */
|
Relocations want only the symbol offset. */
|
reloc->addend = fixp->fx_addnumber;
|
reloc->addend = fixp->fx_addnumber;
|
}
|
}
|
else
|
else
|
{
|
{
|
if (OUTPUT_FLAVOR != bfd_target_aout_flavour)
|
if (OUTPUT_FLAVOR != bfd_target_aout_flavour)
|
/* A gruesome hack which is a result of the gruesome gas reloc
|
/* A gruesome hack which is a result of the gruesome gas reloc
|
handling. */
|
handling. */
|
reloc->addend = pcrel_address;
|
reloc->addend = pcrel_address;
|
else
|
else
|
reloc->addend = -pcrel_address;
|
reloc->addend = -pcrel_address;
|
}
|
}
|
}
|
}
|
else
|
else
|
reloc->addend = fixp->fx_addnumber;
|
reloc->addend = fixp->fx_addnumber;
|
return reloc;
|
return reloc;
|
}
|
}
|
|
|
