/* tc-a29k.c -- Assemble for the AMD 29000.
- Copyright (C) 1989, 1990, 1991 Free Software Foundation, Inc.
+ Copyright (C) 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
-This file is part of GAS, the GNU Assembler.
+ This file is part of GAS, the GNU Assembler.
-GAS is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 1, or (at your option)
-any later version.
+ GAS is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
-GAS is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ GAS is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with GAS; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-/* $Id$ */
+ You should have received a copy of the GNU General Public License
+ along with GAS; see the file COPYING. If not, write to
+ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* John Gilmore has reorganized this module somewhat, to make it easier
to convert it to new machines' assemblers as desired. There was too
much bloody rewriting required before. There still probably is. */
-
+
+#include "ctype.h"
#include "as.h"
-#include "a29k-opcode.h"
+#include "opcode/a29k.h"
/* Make it easier to clone this machine desc into another one. */
#define machine_opcode a29k_opcode
#define machine_ip a29k_ip
#define machine_it a29k_it
-const relax_typeS md_relax_table[] = { 0 };
+const relax_typeS md_relax_table[] =
+{0};
#define IMMEDIATE_BIT 0x01000000 /* Turns RB into Immediate */
#define ABSOLUTE_BIT 0x01000000 /* Turns PC-relative to Absolute */
/* handle of the OPCODE hash table */
static struct hash_control *op_hash = NULL;
-struct machine_it {
- char *error;
+struct machine_it
+ {
+ char *error;
unsigned long opcode;
struct nlist *nlistp;
expressionS exp;
int pcrel;
- int reloc_offset; /* Offset of reloc within insn */
- enum reloc_type reloc;
-} the_insn;
+ int reloc_offset; /* Offset of reloc within insn */
-#ifdef __STDC__
+ int reloc;
-/* static int getExpression(char *str); */
-static void machine_ip(char *str);
-/* static void print_insn(struct machine_it *insn); */
-static void s_data1(void);
-static void s_use(void);
-#else /* __STDC__ */
+ }
-/* static int getExpression(); */
-static void machine_ip();
-/* static void print_insn(); */
-static void s_data1();
-static void s_use();
+the_insn;
-#endif /* __STDC__ */
+static void machine_ip PARAMS ((char *str));
+/* static void print_insn PARAMS ((struct machine_it *insn)); */
+static void s_data1 PARAMS ((void));
+static void s_use PARAMS ((void));
const pseudo_typeS
-md_pseudo_table[] = {
- { "align", s_align_bytes, 4 },
- { "block", s_space, 0 },
- { "cputype", s_ignore, 0 }, /* CPU as 29000 or 29050 */
- { "file", s_ignore, 0 }, /* COFF File name for debug info? */
- { "line", s_ignore, 0 }, /* Line number of coff symbol */
- { "reg", s_lsym, 0 }, /* Register equate, same as equ */
- { "space", s_ignore, 0 }, /* Listing control */
- { "sect", s_ignore, 0 }, /* Creation of coff sections */
- { "use", s_use, 0 },
- { "word", cons, 4 },
- { NULL, 0, 0 },
+ md_pseudo_table[] =
+{
+ {"align", s_align_bytes, 4},
+ {"block", s_space, 0},
+ {"cputype", s_ignore, 0}, /* CPU as 29000 or 29050 */
+ {"reg", s_lsym, 0}, /* Register equate, same as equ */
+ {"space", s_ignore, 0}, /* Listing control */
+ {"sect", s_ignore, 0}, /* Creation of coff sections */
+#ifndef OBJ_COFF
+/* We can do this right with coff */
+ {"use", s_use, 0},
+#endif
+ {"word", cons, 4},
+ {NULL, 0, 0},
};
int md_short_jump_size = 4;
int md_long_jump_size = 4;
-int md_reloc_size = 12;
+#if defined(BFD_HEADERS)
+#ifdef RELSZ
+const int md_reloc_size = RELSZ; /* Coff headers */
+#else
+const int md_reloc_size = 12; /* something else headers */
+#endif
+#else
+const int md_reloc_size = 12; /* Not bfdized*/
+#endif
/* This array holds the chars that always start a comment. If the
- pre-processor is disabled, these aren't very useful */
-char comment_chars[] = ";";
+ pre-processor is disabled, these aren't very useful */
+const char comment_chars[] = ";";
/* This array holds the chars that only start a comment at the beginning of
a line. If the line seems to have the form '# 123 filename'
first line of the input file. This is because the compiler outputs
#NO_APP at the beginning of its output. */
/* Also note that comments like this one will always work */
-char line_comment_chars[] = "#";
+const char line_comment_chars[] = "#";
/* We needed an unused char for line separation to work around the
lack of macros, using sed and such. */
-char line_separator_chars[] = "@";
+const char line_separator_chars[] = "@";
/* Chars that can be used to separate mant from exp in floating point nums */
-char EXP_CHARS[] = "eE";
+const char EXP_CHARS[] = "eE";
/* Chars that mean this number is a floating point constant */
/* As in 0f12.456 */
/* or 0d1.2345e12 */
-char FLT_CHARS[] = "rRsSfFdDxXpP";
+const char FLT_CHARS[] = "rRsSfFdDxXpP";
/* Also be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be
changed in read.c . Ideally it shouldn't have to know about it at all,
but nothing is ideal around here.
- */
+ */
static unsigned char octal[256];
#define isoctal(c) octal[c]
static unsigned char toHex[256];
/*
- * anull bit - causes the branch delay slot instructions to not be executed
+ * anull bit - causes the branch delay slot instructions to not be executed
*/
#define ANNUL (1 << 29)
static void
-s_use()
+s_use ()
{
- if (strncmp(input_line_pointer, ".text", 5) == 0) {
- input_line_pointer += 5;
- s_text();
- return;
+ if (strncmp (input_line_pointer, ".text", 5) == 0)
+ {
+ input_line_pointer += 5;
+ s_text (0);
+ return;
}
- if (strncmp(input_line_pointer, ".data", 5) == 0) {
- input_line_pointer += 5;
- s_data();
- return;
+ if (strncmp (input_line_pointer, ".data", 5) == 0)
+ {
+ input_line_pointer += 5;
+ s_data (0);
+ return;
}
- if (strncmp(input_line_pointer, ".data1", 6) == 0) {
- input_line_pointer += 6;
- s_data1();
- return;
+ if (strncmp (input_line_pointer, ".data1", 6) == 0)
+ {
+ input_line_pointer += 6;
+ s_data1 ();
+ return;
}
- /* Literals can't go in the text segment because you can't read
- from instruction memory on some 29k's. So, into initialized data. */
- if (strncmp(input_line_pointer, ".lit", 4) == 0) {
- input_line_pointer += 4;
- subseg_new(SEG_DATA, 200);
- demand_empty_rest_of_line();
- return;
+ /* Literals can't go in the text segment because you can't read
+ from instruction memory on some 29k's. So, into initialized data. */
+ if (strncmp (input_line_pointer, ".lit", 4) == 0)
+ {
+ input_line_pointer += 4;
+ subseg_new (SEG_DATA, 200);
+ demand_empty_rest_of_line ();
+ return;
}
- as_bad("Unknown segment type");
- demand_empty_rest_of_line();
- return;
+ as_bad ("Unknown segment type");
+ demand_empty_rest_of_line ();
+ return;
}
static void
-s_data1()
+s_data1 ()
{
- subseg_new(SEG_DATA, 1);
- demand_empty_rest_of_line();
- return;
+ subseg_new (SEG_DATA, 1);
+ demand_empty_rest_of_line ();
+ return;
}
/* Install symbol definition that maps REGNAME to REGNO.
char *regname;
int regnum;
{
- /* FIXME-SOON, put something in these syms so they won't be output to the symbol
+ /* FIXME-SOON, put something in these syms so they won't be output to the symbol
table of the resulting object file. */
-
- /* Must be large enough to hold the names of the special registers. */
- char buf[80];
- int i;
-
- symbol_table_insert(symbol_new(regname, SEG_REGISTER, regnum, &zero_address_frag));
- for (i = 0; regname[i]; i++)
- buf[i] = islower (regname[i]) ? toupper (regname[i]) : regname[i];
- buf[i] = '\0';
-
- symbol_table_insert(symbol_new(buf, SEG_REGISTER, regnum, &zero_address_frag));
-} /* insert_sreg() */
+
+ /* Must be large enough to hold the names of the special registers. */
+ char buf[80];
+ int i;
+
+ symbol_table_insert (symbol_new (regname, SEG_REGISTER, regnum, &zero_address_frag));
+ for (i = 0; regname[i]; i++)
+ buf[i] = islower (regname[i]) ? toupper (regname[i]) : regname[i];
+ buf[i] = '\0';
+
+ symbol_table_insert (symbol_new (buf, SEG_REGISTER, regnum, &zero_address_frag));
+} /* insert_sreg() */
/* Install symbol definitions for assorted special registers.
See ASM29K Ref page 2-9. */
-void define_some_regs() {
+void
+define_some_regs ()
+{
#define SREG 256
-
- /* Protected special-purpose register names */
- insert_sreg ("vab", SREG+0);
- insert_sreg ("ops", SREG+1);
- insert_sreg ("cps", SREG+2);
- insert_sreg ("cfg", SREG+3);
- insert_sreg ("cha", SREG+4);
- insert_sreg ("chd", SREG+5);
- insert_sreg ("chc", SREG+6);
- insert_sreg ("rbp", SREG+7);
- insert_sreg ("tmc", SREG+8);
- insert_sreg ("tmr", SREG+9);
- insert_sreg ("pc0", SREG+10);
- insert_sreg ("pc1", SREG+11);
- insert_sreg ("pc2", SREG+12);
- insert_sreg ("mmu", SREG+13);
- insert_sreg ("lru", SREG+14);
-
- /* Unprotected special-purpose register names */
- insert_sreg ("ipc", SREG+128);
- insert_sreg ("ipa", SREG+129);
- insert_sreg ("ipb", SREG+130);
- insert_sreg ("q", SREG+131);
- insert_sreg ("alu", SREG+132);
- insert_sreg ("bp", SREG+133);
- insert_sreg ("fc", SREG+134);
- insert_sreg ("cr", SREG+135);
- insert_sreg ("fpe", SREG+160);
- insert_sreg ("inte",SREG+161);
- insert_sreg ("fps", SREG+162);
- /* "", SREG+163); Reserved */
- insert_sreg ("exop",SREG+164);
-} /* define_some_regs() */
+
+ /* Protected special-purpose register names */
+ insert_sreg ("vab", SREG + 0);
+ insert_sreg ("ops", SREG + 1);
+ insert_sreg ("cps", SREG + 2);
+ insert_sreg ("cfg", SREG + 3);
+ insert_sreg ("cha", SREG + 4);
+ insert_sreg ("chd", SREG + 5);
+ insert_sreg ("chc", SREG + 6);
+ insert_sreg ("rbp", SREG + 7);
+ insert_sreg ("tmc", SREG + 8);
+ insert_sreg ("tmr", SREG + 9);
+ insert_sreg ("pc0", SREG + 10);
+ insert_sreg ("pc1", SREG + 11);
+ insert_sreg ("pc2", SREG + 12);
+ insert_sreg ("mmu", SREG + 13);
+ insert_sreg ("lru", SREG + 14);
+
+ /* Additional protected special-purpose registers for the 29050 */
+ insert_sreg ("rsn", SREG + 15);
+ insert_sreg ("rma0", SREG + 16);
+ insert_sreg ("rmc0", SREG + 17);
+ insert_sreg ("rma1", SREG + 18);
+ insert_sreg ("rmc1", SREG + 19);
+ insert_sreg ("spc0", SREG + 20);
+ insert_sreg ("spc1", SREG + 21);
+ insert_sreg ("spc2", SREG + 22);
+ insert_sreg ("iba0", SREG + 23);
+ insert_sreg ("ibc0", SREG + 24);
+ insert_sreg ("iba1", SREG + 25);
+ insert_sreg ("ibc1", SREG + 26);
+
+ /* Unprotected special-purpose register names */
+ insert_sreg ("ipc", SREG + 128);
+ insert_sreg ("ipa", SREG + 129);
+ insert_sreg ("ipb", SREG + 130);
+ insert_sreg ("q", SREG + 131);
+ insert_sreg ("alu", SREG + 132);
+ insert_sreg ("bp", SREG + 133);
+ insert_sreg ("fc", SREG + 134);
+ insert_sreg ("cr", SREG + 135);
+ insert_sreg ("fpe", SREG + 160);
+ insert_sreg ("inte", SREG + 161);
+ insert_sreg ("fps", SREG + 162);
+ /* "", SREG+163); Reserved */
+ insert_sreg ("exop", SREG + 164);
+} /* define_some_regs() */
/* This function is called once, at assembler startup time. It should
set up all the tables, etc. that the MD part of the assembler will need. */
void
-md_begin()
+md_begin ()
{
register char *retval = NULL;
int lose = 0;
/* Hash up all the opcodes for fast use later. */
- op_hash = hash_new();
- if (op_hash == NULL)
- as_fatal("Virtual memory exhausted");
+ op_hash = hash_new ();
for (i = 0; i < num_opcodes; i++)
{
const char *name = machine_opcodes[i].name;
- if (skipnext) {
- skipnext = 0;
- continue;
- }
+ if (skipnext)
+ {
+ skipnext = 0;
+ continue;
+ }
/* Hack to avoid multiple opcode entries. We pre-locate all the
- variations (b/i field and P/A field) and handle them. */
-
- if (!strcmp (name, machine_opcodes[i+1].name)) {
- if ((machine_opcodes[i].opcode ^ machine_opcodes[i+1].opcode)
- != 0x01000000)
- goto bad_table;
- strend = machine_opcodes[i ].args+strlen(machine_opcodes[i ].args)-1;
- strend2 = machine_opcodes[i+1].args+strlen(machine_opcodes[i+1].args)-1;
- switch (*strend) {
- case 'b':
- if (*strend2 != 'i') goto bad_table;
- break;
- case 'i':
- if (*strend2 != 'b') goto bad_table;
- break;
- case 'P':
- if (*strend2 != 'A') goto bad_table;
- break;
- case 'A':
- if (*strend2 != 'P') goto bad_table;
- break;
- default:
- bad_table:
- fprintf (stderr, "internal error: can't handle opcode %s\n", name);
- lose = 1;
- }
+ variations (b/i field and P/A field) and handle them. */
- /* OK, this is an i/b or A/P pair. We skip the higher-valued one,
- and let the code for operand checking handle OR-ing in the bit. */
- if (machine_opcodes[i].opcode & 1)
- continue;
- else
- skipnext = 1;
- }
+ if (!strcmp (name, machine_opcodes[i + 1].name))
+ {
+ if ((machine_opcodes[i].opcode ^ machine_opcodes[i + 1].opcode)
+ != 0x01000000)
+ goto bad_table;
+ strend = machine_opcodes[i].args + strlen (machine_opcodes[i].args) - 1;
+ strend2 = machine_opcodes[i + 1].args + strlen (machine_opcodes[i + 1].args) - 1;
+ switch (*strend)
+ {
+ case 'b':
+ if (*strend2 != 'i')
+ goto bad_table;
+ break;
+ case 'i':
+ if (*strend2 != 'b')
+ goto bad_table;
+ break;
+ case 'P':
+ if (*strend2 != 'A')
+ goto bad_table;
+ break;
+ case 'A':
+ if (*strend2 != 'P')
+ goto bad_table;
+ break;
+ default:
+ bad_table:
+ fprintf (stderr, "internal error: can't handle opcode %s\n", name);
+ lose = 1;
+ }
+
+ /* OK, this is an i/b or A/P pair. We skip the higher-valued one,
+ and let the code for operand checking handle OR-ing in the bit. */
+ if (machine_opcodes[i].opcode & 1)
+ continue;
+ else
+ skipnext = 1;
+ }
retval = hash_insert (op_hash, name, &machine_opcodes[i]);
if (retval != NULL && *retval != '\0')
}
if (lose)
- as_fatal("Broken assembler. No assembly attempted.");
+ as_fatal ("Broken assembler. No assembly attempted.");
for (i = '0'; i < '8'; ++i)
octal[i] = 1;
define_some_regs ();
}
-void md_end() {
- return;
+void
+md_end ()
+{
+ return;
}
/* Assemble a single instruction. Its label has already been handled
by the generic front end. We just parse opcode and operands, and
produce the bytes of data and relocation. */
-void md_assemble(str)
- char *str;
+void
+md_assemble (str)
+ char *str;
{
- char *toP;
-/* !!!! int rsd; */
-
- know(str);
- machine_ip(str);
- toP = frag_more(4);
- /* put out the opcode */
- md_number_to_chars(toP, the_insn.opcode, 4);
-
- /* put out the symbol-dependent stuff */
- if (the_insn.reloc != NO_RELOC) {
- fix_new(
- frag_now, /* which frag */
- (toP - frag_now->fr_literal + the_insn.reloc_offset), /* where */
- 4, /* size */
- the_insn.exp.X_add_symbol,
- the_insn.exp.X_subtract_symbol,
- the_insn.exp.X_add_number,
- the_insn.pcrel,
- the_insn.reloc
- );
+ char *toP;
+ /* !!!! int rsd; */
+
+ know (str);
+ machine_ip (str);
+ toP = frag_more (4);
+ /* put out the opcode */
+ md_number_to_chars (toP, the_insn.opcode, 4);
+
+ /* put out the symbol-dependent stuff */
+ if (the_insn.reloc != NO_RELOC)
+ {
+ fix_new_exp (frag_now,
+ (toP - frag_now->fr_literal + the_insn.reloc_offset),
+ 4, /* size */
+ &the_insn.exp,
+ the_insn.pcrel,
+ the_insn.reloc);
}
}
char *s;
expressionS *operandp;
{
- char *save = input_line_pointer;
- char *new;
- segT seg;
-
- input_line_pointer = s;
- seg = expr (0, operandp);
- new = input_line_pointer;
- input_line_pointer = save;
-
- switch (seg) {
- case SEG_ABSOLUTE:
- case SEG_TEXT:
- case SEG_DATA:
- case SEG_BSS:
- case SEG_UNKNOWN:
- case SEG_DIFFERENCE:
- case SEG_BIG:
- case SEG_REGISTER:
- return new;
-
- case SEG_ABSENT:
- as_bad("Missing operand");
- return new;
-
- default:
- as_bad("Don't understand operand of type %s", segment_name (seg));
- return new;
- }
+ char *save = input_line_pointer;
+ char *new;
+
+ input_line_pointer = s;
+ expression (operandp);
+ if (operandp->X_op == O_absent)
+ as_bad ("missing operand");
+ new = input_line_pointer;
+ input_line_pointer = save;
+ return new;
}
-/* 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.
Warnings or errors are generated. */
-
+
static void
-machine_ip(str)
- char *str;
+machine_ip (str)
+ char *str;
{
- char *s;
- const char *args;
-/* !!!! char c; */
-/* !!!! unsigned long i; */
- struct machine_opcode *insn;
- char *argsStart;
- unsigned long opcode;
-/* !!!! unsigned int mask; */
- expressionS the_operand;
- expressionS *operand = &the_operand;
- unsigned int reg;
-
- /* Must handle `div0' opcode. */
- s = str;
- if (isalpha(*s))
- for (; isalnum(*s); ++s)
- if (isupper (*s))
- *s = tolower (*s);
-
- switch (*s) {
+ char *s;
+ const char *args;
+ /* !!!! char c; */
+ /* !!!! unsigned long i; */
+ struct machine_opcode *insn;
+ char *argsStart;
+ unsigned long opcode;
+ /* !!!! unsigned int mask; */
+ expressionS the_operand;
+ expressionS *operand = &the_operand;
+ unsigned int reg;
+
+ /* Must handle `div0' opcode. */
+ s = str;
+ if (isalpha (*s))
+ for (; isalnum (*s); ++s)
+ if (isupper (*s))
+ *s = tolower (*s);
+
+ switch (*s)
+ {
case '\0':
- break;
+ break;
- case ' ': /* FIXME-SOMEDAY more whitespace */
- *s++ = '\0';
- break;
+ case ' ': /* FIXME-SOMEDAY more whitespace */
+ *s++ = '\0';
+ break;
default:
- as_bad("Unknown opcode: `%s'", str);
- return;
+ as_bad ("Unknown opcode: `%s'", str);
+ return;
}
- if ((insn = (struct machine_opcode *) hash_find(op_hash, str)) == NULL) {
- as_bad("Unknown opcode `%s'.", str);
- return;
+ if ((insn = (struct machine_opcode *) hash_find (op_hash, str)) == NULL)
+ {
+ as_bad ("Unknown opcode `%s'.", str);
+ return;
}
- argsStart = s;
- opcode = insn->opcode;
- bzero(&the_insn, sizeof(the_insn));
- the_insn.reloc = NO_RELOC;
-
- /*
- * Build the opcode, checking as we go to make
- * sure that the operands match.
- *
- * If an operand matches, we modify the_insn or opcode appropriately,
- * and do a "continue". If an operand fails to match, we "break".
- */
- if (insn->args[0] != '\0')
- s = parse_operand (s, operand); /* Prime the pump */
-
- for (args = insn->args; ; ++args) {
- switch (*args) {
-
- case '\0': /* end of args */
- if (*s == '\0') {
- /* We are truly done. */
- the_insn.opcode = opcode;
- return;
- }
- as_bad("Too many operands: %s", s);
- break;
+ argsStart = s;
+ opcode = insn->opcode;
+ memset (&the_insn, '\0', sizeof (the_insn));
+ the_insn.reloc = NO_RELOC;
+
+ /*
+ * Build the opcode, checking as we go to make
+ * sure that the operands match.
+ *
+ * If an operand matches, we modify the_insn or opcode appropriately,
+ * and do a "continue". If an operand fails to match, we "break".
+ */
+ if (insn->args[0] != '\0')
+ s = parse_operand (s, operand); /* Prime the pump */
+
+ for (args = insn->args;; ++args)
+ {
+ switch (*args)
+ {
- case ',': /* Must match a comma */
- if (*s++ == ',') {
- s = parse_operand (s, operand); /* Parse next opnd */
- continue;
+ case '\0': /* end of args */
+ if (*s == '\0')
+ {
+ /* We are truly done. */
+ the_insn.opcode = opcode;
+ return;
}
- break;
+ as_bad ("Too many operands: %s", s);
+ break;
+
+ case ',': /* Must match a comma */
+ if (*s++ == ',')
+ {
+ s = parse_operand (s, operand); /* Parse next opnd */
+ continue;
+ }
+ break;
case 'v': /* Trap numbers (immediate field) */
- if (operand->X_seg == SEG_ABSOLUTE) {
- if (operand->X_add_number < 256) {
- opcode |= (operand->X_add_number << 16);
- continue;
- } else {
- as_bad("Immediate value of %d is too large",
- operand->X_add_number);
- continue;
+ if (operand->X_op == O_constant)
+ {
+ if (operand->X_add_number < 256)
+ {
+ opcode |= (operand->X_add_number << 16);
+ continue;
+ }
+ else
+ {
+ as_bad ("Immediate value of %d is too large",
+ operand->X_add_number);
+ continue;
}
}
- the_insn.reloc = RELOC_8;
- the_insn.reloc_offset = 1; /* BIG-ENDIAN Byte 1 of insn */
- the_insn.exp = *operand;
- continue;
-
- case 'b': /* A general register or 8-bit immediate */
+ the_insn.reloc = RELOC_8;
+ the_insn.reloc_offset = 1; /* BIG-ENDIAN Byte 1 of insn */
+ the_insn.exp = *operand;
+ continue;
+
+ case 'b': /* A general register or 8-bit immediate */
case 'i':
- /* We treat the two cases identically since we mashed
- them together in the opcode table. */
- if (operand->X_seg == SEG_REGISTER)
- goto general_reg;
-
- opcode |= IMMEDIATE_BIT;
- if (operand->X_seg == SEG_ABSOLUTE) {
- if (operand->X_add_number < 256) {
- opcode |= operand->X_add_number;
- continue;
- } else {
- as_bad("Immediate value of %d is too large",
- operand->X_add_number);
- continue;
+ /* We treat the two cases identically since we mashed
+ them together in the opcode table. */
+ if (operand->X_op == O_register)
+ goto general_reg;
+
+ opcode |= IMMEDIATE_BIT;
+ if (operand->X_op == O_constant)
+ {
+ if (operand->X_add_number < 256)
+ {
+ opcode |= operand->X_add_number;
+ continue;
+ }
+ else
+ {
+ as_bad ("Immediate value of %d is too large",
+ operand->X_add_number);
+ continue;
}
}
- the_insn.reloc = RELOC_8;
- the_insn.reloc_offset = 3; /* BIG-ENDIAN Byte 3 of insn */
- the_insn.exp = *operand;
- continue;
-
- case 'a': /* next operand must be a register */
+ the_insn.reloc = RELOC_8;
+ the_insn.reloc_offset = 3; /* BIG-ENDIAN Byte 3 of insn */
+ the_insn.exp = *operand;
+ continue;
+
+ case 'a': /* next operand must be a register */
case 'c':
general_reg:
- /* lrNNN or grNNN or %%expr or a user-def register name */
- if (operand->X_seg != SEG_REGISTER)
- break; /* Only registers */
- know (operand->X_add_symbol == 0);
- know (operand->X_subtract_symbol == 0);
- reg = operand->X_add_number;
- if (reg >= SREG)
- break; /* No special registers */
-
- /*
- * Got the register, now figure out where
- * it goes in the opcode.
- */
- switch (*args) {
+ /* lrNNN or grNNN or %%expr or a user-def register name */
+ if (operand->X_op != O_register)
+ break; /* Only registers */
+ know (operand->X_add_symbol == 0);
+ know (operand->X_op_symbol == 0);
+ reg = operand->X_add_number;
+ if (reg >= SREG)
+ break; /* No special registers */
+
+ /*
+ * Got the register, now figure out where
+ * it goes in the opcode.
+ */
+ switch (*args)
+ {
case 'a':
- opcode |= reg << 8;
- continue;
+ opcode |= reg << 8;
+ continue;
case 'b':
case 'i':
- opcode |= reg;
- continue;
+ opcode |= reg;
+ continue;
case 'c':
- opcode |= reg << 16;
- continue;
+ opcode |= reg << 16;
+ continue;
}
- abort();
- break;
+ as_fatal ("failed sanity check.");
+ break;
case 'x': /* 16 bit constant, zero-extended */
case 'X': /* 16 bit constant, one-extended */
- if (operand->X_seg == SEG_ABSOLUTE) {
- opcode |= (operand->X_add_number & 0xFF) << 0 |
- ((operand->X_add_number & 0xFF00) << 8);
- continue;
+ if (operand->X_op == O_constant)
+ {
+ opcode |= (operand->X_add_number & 0xFF) << 0 |
+ ((operand->X_add_number & 0xFF00) << 8);
+ continue;
}
- the_insn.reloc = RELOC_CONST;
- the_insn.exp = *operand;
- continue;
+ the_insn.reloc = RELOC_CONST;
+ the_insn.exp = *operand;
+ continue;
case 'h':
- if (operand->X_seg == SEG_ABSOLUTE) {
- opcode |= (operand->X_add_number & 0x00FF0000) >> 16 |
- (((unsigned long)operand->X_add_number
- /* avoid sign ext */ & 0xFF000000) >> 8);
- continue;
+ if (operand->X_op == O_constant)
+ {
+ opcode |= (operand->X_add_number & 0x00FF0000) >> 16 |
+ (((unsigned long) operand->X_add_number
+ /* avoid sign ext */ & 0xFF000000) >> 8);
+ continue;
}
- the_insn.reloc = RELOC_CONSTH;
- the_insn.exp = *operand;
- continue;
+ the_insn.reloc = RELOC_CONSTH;
+ the_insn.exp = *operand;
+ continue;
case 'P': /* PC-relative jump address */
case 'A': /* Absolute jump address */
- /* These two are treated together since we folded the
- opcode table entries together. */
- if (operand->X_seg == SEG_ABSOLUTE) {
- opcode |= ABSOLUTE_BIT |
- (operand->X_add_number & 0x0003FC00) << 6 |
- ((operand->X_add_number & 0x000003FC) >> 2);
- continue;
+ /* These two are treated together since we folded the
+ opcode table entries together. */
+ if (operand->X_op == O_constant)
+ {
+ opcode |= ABSOLUTE_BIT |
+ (operand->X_add_number & 0x0003FC00) << 6 |
+ ((operand->X_add_number & 0x000003FC) >> 2);
+ continue;
}
- the_insn.reloc = RELOC_JUMPTARG;
- the_insn.exp = *operand;
- the_insn.pcrel = 1; /* Assume PC-relative jump */
- /* FIXME-SOON, Do we figure out whether abs later, after know sym val? */
- continue;
+ the_insn.reloc = RELOC_JUMPTARG;
+ the_insn.exp = *operand;
+ the_insn.pcrel = 1; /* Assume PC-relative jump */
+ /* FIXME-SOON, Do we figure out whether abs later, after know sym val? */
+ continue;
case 'e': /* Coprocessor enable bit for LOAD/STORE insn */
- if (operand->X_seg == SEG_ABSOLUTE) {
- if (operand->X_add_number == 0)
- continue;
- if (operand->X_add_number == 1) {
- opcode |= CE_BIT;
- continue;
+ if (operand->X_op == O_constant)
+ {
+ if (operand->X_add_number == 0)
+ continue;
+ if (operand->X_add_number == 1)
+ {
+ opcode |= CE_BIT;
+ continue;
}
}
- break;
+ break;
case 'n': /* Control bits for LOAD/STORE instructions */
- if (operand->X_seg == SEG_ABSOLUTE &&
- operand->X_add_number < 128) {
- opcode |= (operand->X_add_number << 16);
- continue;
+ if (operand->X_op == O_constant &&
+ operand->X_add_number < 128)
+ {
+ opcode |= (operand->X_add_number << 16);
+ continue;
}
- break;
-
+ break;
+
case 's': /* Special register number */
- if (operand->X_seg != SEG_REGISTER)
- break; /* Only registers */
- if (operand->X_add_number < SREG)
- break; /* Not a special register */
- opcode |= (operand->X_add_number & 0xFF) << 8;
- continue;
+ if (operand->X_op != O_register)
+ break; /* Only registers */
+ if (operand->X_add_number < SREG)
+ break; /* Not a special register */
+ opcode |= (operand->X_add_number & 0xFF) << 8;
+ continue;
case 'u': /* UI bit of CONVERT */
- if (operand->X_seg == SEG_ABSOLUTE) {
- if (operand->X_add_number == 0)
- continue;
- if (operand->X_add_number == 1) {
- opcode |= UI_BIT;
- continue;
+ if (operand->X_op == O_constant)
+ {
+ if (operand->X_add_number == 0)
+ continue;
+ if (operand->X_add_number == 1)
+ {
+ opcode |= UI_BIT;
+ continue;
}
}
- break;
+ break;
case 'r': /* RND bits of CONVERT */
- if (operand->X_seg == SEG_ABSOLUTE &&
- operand->X_add_number < 8) {
- opcode |= operand->X_add_number << 4;
- continue;
+ if (operand->X_op == O_constant &&
+ operand->X_add_number < 8)
+ {
+ opcode |= operand->X_add_number << 4;
+ continue;
}
- break;
+ break;
case 'd': /* FD bits of CONVERT */
- if (operand->X_seg == SEG_ABSOLUTE &&
- operand->X_add_number < 4) {
- opcode |= operand->X_add_number << 2;
- continue;
+ if (operand->X_op == O_constant &&
+ operand->X_add_number < 4)
+ {
+ opcode |= operand->X_add_number << 2;
+ continue;
}
- break;
+ break;
case 'f': /* FS bits of CONVERT */
- if (operand->X_seg == SEG_ABSOLUTE &&
- operand->X_add_number < 4) {
- opcode |= operand->X_add_number << 0;
- continue;
+ if (operand->X_op == O_constant &&
+ operand->X_add_number < 4)
+ {
+ opcode |= operand->X_add_number << 0;
+ continue;
}
- break;
-
- case 'C':
- if (operand->X_seg == SEG_ABSOLUTE &&
- operand->X_add_number < 4) {
- opcode |= operand->X_add_number << 16;
- continue;
+ break;
+
+ case 'C':
+ if (operand->X_op == O_constant &&
+ operand->X_add_number < 4)
+ {
+ opcode |= operand->X_add_number << 16;
+ continue;
}
- break;
-
- case 'F':
- if (operand->X_seg == SEG_ABSOLUTE &&
- operand->X_add_number < 16) {
- opcode |= operand->X_add_number << 18;
- continue;
+ break;
+
+ case 'F':
+ if (operand->X_op == O_constant &&
+ operand->X_add_number < 16)
+ {
+ opcode |= operand->X_add_number << 18;
+ continue;
}
- break;
+ break;
default:
- BAD_CASE (*args);
+ BAD_CASE (*args);
}
- /* Types or values of args don't match. */
- as_bad("Invalid operands");
- return;
+ /* Types or values of args don't match. */
+ as_bad ("Invalid operands");
+ return;
}
}
/*
- This is identical to the md_atof in m68k.c. I think this is right,
- but I'm not sure.
+ This is identical to the md_atof in m68k.c. I think this is right,
+ but I'm not sure.
- Turn a string in input_line_pointer into a floating point constant of type
- type, and store the appropriate bytes in *litP. The number of LITTLENUMS
- emitted is stored in *sizeP . An error message is returned, or NULL on OK.
- */
+ Turn a string in input_line_pointer into a floating point constant of type
+ type, and store the appropriate bytes in *litP. The number of LITTLENUMS
+ emitted is stored in *sizeP . An error message is returned, or NULL on OK.
+ */
/* Equal to MAX_PRECISION in atof-ieee.c */
#define MAX_LITTLENUMS 6
char *
-md_atof(type,litP,sizeP)
- char type;
- char *litP;
- int *sizeP;
+md_atof (type, litP, sizeP)
+ char type;
+ char *litP;
+ int *sizeP;
{
- int prec;
- LITTLENUM_TYPE words[MAX_LITTLENUMS];
- LITTLENUM_TYPE *wordP;
- char *t;
+ int prec;
+ LITTLENUM_TYPE words[MAX_LITTLENUMS];
+ LITTLENUM_TYPE *wordP;
+ char *t;
- switch(type) {
+ switch (type)
+ {
case 'f':
case 'F':
case 's':
case 'S':
- prec = 2;
- break;
+ prec = 2;
+ break;
case 'd':
case 'D':
case 'r':
case 'R':
- prec = 4;
- break;
+ prec = 4;
+ break;
case 'x':
case 'X':
- prec = 6;
- break;
+ prec = 6;
+ break;
case 'p':
case 'P':
- prec = 6;
- break;
+ prec = 6;
+ break;
default:
- *sizeP=0;
- return "Bad call to MD_ATOF()";
+ *sizeP = 0;
+ return "Bad call to MD_ATOF()";
}
- t=atof_ieee(input_line_pointer,type,words);
- if(t)
- input_line_pointer=t;
- *sizeP=prec * sizeof(LITTLENUM_TYPE);
- for(wordP=words;prec--;) {
- md_number_to_chars(litP,(long)(*wordP++),sizeof(LITTLENUM_TYPE));
- litP+=sizeof(LITTLENUM_TYPE);
+ t = atof_ieee (input_line_pointer, type, words);
+ if (t)
+ input_line_pointer = t;
+ *sizeP = prec * sizeof (LITTLENUM_TYPE);
+ for (wordP = words; prec--;)
+ {
+ md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE));
+ litP += sizeof (LITTLENUM_TYPE);
}
- return ""; /* Someone should teach Dean about null pointers */
+ return ""; /* Someone should teach Dean about null pointers */
}
/*
* Write out big-endian.
*/
void
-md_number_to_chars(buf,val,n)
- char *buf;
- long val;
- int n;
+md_number_to_chars (buf, val, n)
+ char *buf;
+ valueT val;
+ int n;
{
- switch(n) {
+ switch (n)
+ {
case 4:
- *buf++ = val >> 24;
- *buf++ = val >> 16;
+ *buf++ = val >> 24;
+ *buf++ = val >> 16;
case 2:
- *buf++ = val >> 8;
+ *buf++ = val >> 8;
case 1:
- *buf = val;
- break;
+ *buf = val;
+ break;
default:
- abort();
+ as_fatal ("failed sanity check.");
}
- return;
+ return;
}
-void md_apply_fix(fixP, val)
- fixS *fixP;
- long val;
+void
+md_apply_fix (fixP, val)
+ fixS *fixP;
+ long val;
{
- char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
-
- fixP->fx_addnumber = val; /* Remember value for emit_reloc */
-
- if (fixP->fx_r_type == NO_RELOC) {
- abort(); /* FIXME-SOON, if this is never used, remove */
- switch (fixP->fx_size) {
- case 1:
- *buf = val;
- break;
- case 2:
- *buf++ = (val>>8);
- *buf = val;
- break;
- case 4:
- *buf++ = (val>>24);
- *buf++ = (val>>16);
- *buf++ = (val>>8);
- *buf = val;
- break;
- default:
- abort();
- }
- return;
- }
+ char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
+
+ fixP->fx_addnumber = val; /* Remember value for emit_reloc */
+
- know(fixP->fx_size == 4);
- know(fixP->fx_r_type < NO_RELOC);
+ know (fixP->fx_size == 4);
+ know (fixP->fx_r_type < NO_RELOC);
- /*
- * This is a hack. There should be a better way to
- * handle this.
- */
- if (fixP->fx_r_type == RELOC_WDISP30 && fixP->fx_addsy) {
- val += fixP->fx_where + fixP->fx_frag->fr_address;
+ /*
+ * This is a hack. There should be a better way to
+ * handle this.
+ */
+ if (fixP->fx_r_type == RELOC_WDISP30 && fixP->fx_addsy)
+ {
+ val += fixP->fx_where + fixP->fx_frag->fr_address;
}
- switch (fixP->fx_r_type) {
+ switch (fixP->fx_r_type)
+ {
case RELOC_32:
- buf[0] = val >> 24;
- buf[1] = val >> 16;
- buf[2] = val >> 8;
- buf[3] = val;
- break;
+ buf[0] = val >> 24;
+ buf[1] = val >> 16;
+ buf[2] = val >> 8;
+ buf[3] = val;
+ break;
case RELOC_8:
- buf[0] = val;
- break;
+ buf[0] = val;
+ break;
case RELOC_WDISP30:
- val = (val >>= 2) + 1;
- buf[0] |= (val >> 24) & 0x3f;
- buf[1]= (val >> 16);
- buf[2] = val >> 8;
- buf[3] = val;
- break;
+ val = (val >>= 2) + 1;
+ buf[0] |= (val >> 24) & 0x3f;
+ buf[1] = (val >> 16);
+ buf[2] = val >> 8;
+ buf[3] = val;
+ break;
case RELOC_HI22:
- buf[1] |= (val >> 26) & 0x3f;
- buf[2] = val >> 18;
- buf[3] = val >> 10;
- break;
+ buf[1] |= (val >> 26) & 0x3f;
+ buf[2] = val >> 18;
+ buf[3] = val >> 10;
+ break;
case RELOC_LO10:
- buf[2] |= (val >> 8) & 0x03;
- buf[3] = val;
- break;
+ buf[2] |= (val >> 8) & 0x03;
+ buf[3] = val;
+ break;
case RELOC_BASE13:
- buf[2] |= (val >> 8) & 0x1f;
- buf[3] = val;
- break;
+ buf[2] |= (val >> 8) & 0x1f;
+ buf[3] = val;
+ break;
case RELOC_WDISP22:
- val = (val >>= 2) + 1;
- /* FALLTHROUGH */
+ val = (val >>= 2) + 1;
+ /* FALLTHROUGH */
case RELOC_BASE22:
- buf[1] |= (val >> 16) & 0x3f;
- buf[2] = val >> 8;
- buf[3] = val;
- break;
+ buf[1] |= (val >> 16) & 0x3f;
+ buf[2] = val >> 8;
+ buf[3] = val;
+ break;
#if 0
- case RELOC_PC10:
- case RELOC_PC22:
+ case RELOC_PC10:
+ case RELOC_PC22:
case RELOC_JMP_TBL:
case RELOC_SEGOFF16:
case RELOC_GLOB_DAT:
- case RELOC_JMP_SLOT:
+ case RELOC_JMP_SLOT:
case RELOC_RELATIVE:
#endif
case RELOC_JUMPTARG: /* 00XX00XX pattern in a word */
- buf[1] = val >> 10; /* Holds bits 0003FFFC of address */
- buf[3] = val >> 2;
- break;
+ buf[1] = val >> 10; /* Holds bits 0003FFFC of address */
+ buf[3] = val >> 2;
+ break;
case RELOC_CONST: /* 00XX00XX pattern in a word */
- buf[1] = val >> 8; /* Holds bits 0000XXXX */
- buf[3] = val;
- break;
+ buf[1] = val >> 8; /* Holds bits 0000XXXX */
+ buf[3] = val;
+ break;
case RELOC_CONSTH: /* 00XX00XX pattern in a word */
- buf[1] = val >> 24; /* Holds bits XXXX0000 */
- buf[3] = val >> 16;
- break;
+ buf[1] = val >> 24; /* Holds bits XXXX0000 */
+ buf[3] = val >> 16;
+ break;
case NO_RELOC:
default:
- as_bad("bad relocation type: 0x%02x", fixP->fx_r_type);
- break;
+ as_bad ("bad relocation type: 0x%02x", fixP->fx_r_type);
+ break;
}
- return;
+ return;
}
#ifdef OBJ_COFF
-short tc_coff_fix2rtype(fixP)
-fixS *fixP;
+short
+tc_coff_fix2rtype (fixP)
+ fixS *fixP;
{
- /* FIXME-NOW: relocation type handling is not yet written for
- a29k. */
+ switch (fixP->fx_r_type)
+ {
+ case RELOC_32:
+ return (R_WORD);
+ case RELOC_8:
+ return (R_BYTE);
+ case RELOC_CONST:
+ return (R_ILOHALF);
+ case RELOC_CONSTH:
+ return (R_IHIHALF);
+ case RELOC_JUMPTARG:
+ return (R_IREL);
+ default:
+ printf ("need %o3\n", fixP->fx_r_type);
+ abort ();
+ } /* switch on type */
- know(0);
- switch (fixP->fx_r_type) {
- case RELOC_32: return(R_WORD);
- case RELOC_8: return(R_BYTE);
- default: know(0);
- } /* switch on type */
+ return (0);
+} /* tc_coff_fix2rtype() */
- return(0);
-} /* tc_coff_fix2rtype() */
#endif /* OBJ_COFF */
/* should never be called for sparc */
-void md_create_short_jump(ptr, from_addr, to_addr, frag, to_symbol)
- char *ptr;
- long from_addr, to_addr;
-fragS *frag;
-symbolS *to_symbol;
-{
- fprintf(stderr, "a29k_create_short_jmp\n");
- abort();
-}
-
-/* Translate internal representation of relocation info to target format.
-
- 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
- bit 7 as external, bits 6 & 5 unused, and the lower
- 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 */
void
-md_ri_to_chars(the_bytes, ri)
- char *the_bytes;
- struct reloc_info_generic *ri;
+md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol)
+ char *ptr;
+ addressT from_addr, to_addr;
+ fragS *frag;
+ symbolS *to_symbol;
{
- /* this is easy */
- md_number_to_chars(the_bytes, ri->r_address, 4);
- /* now the fun stuff */
- the_bytes[4] = (ri->r_index >> 16) & 0x0ff;
- the_bytes[5] = (ri->r_index >> 8) & 0x0ff;
- the_bytes[6] = ri->r_index & 0x0ff;
- the_bytes[7] = ((ri->r_extern << 7) & 0x80) | (0 & 0x60) | (ri->r_type & 0x1F);
- /* Also easy */
- md_number_to_chars(&the_bytes[8], ri->r_addend, 4);
+ as_fatal ("a29k_create_short_jmp\n");
}
/* should never be called for 29k */
-void md_convert_frag(fragP)
- register fragS *fragP;
+void
+md_convert_frag (headers, fragP)
+ object_headers *headers;
+ register fragS *fragP;
{
- fprintf(stderr, "sparc_convert_frag\n");
- abort();
+ as_fatal ("sparc_convert_frag\n");
}
/* should never be called for 29k */
-void md_create_long_jump(ptr, from_addr, to_addr, frag, to_symbol)
- char *ptr;
- long from_addr,
- to_addr;
- fragS *frag;
- symbolS *to_symbol;
+void
+md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol)
+ char *ptr;
+ addressT from_addr;
+ addressT to_addr;
+ fragS *frag;
+ symbolS *to_symbol;
{
- fprintf(stderr, "sparc_create_long_jump\n");
- abort();
+ as_fatal ("sparc_create_long_jump\n");
}
-/* should never be called for sparc */
-int md_estimate_size_before_relax(fragP, segtype)
- register fragS *fragP;
-segT segtype;
+/* should never be called for a29k */
+int
+md_estimate_size_before_relax (fragP, segtype)
+ register fragS *fragP;
+ segT segtype;
{
- fprintf(stderr, "sparc_estimate_size_before_relax\n");
- abort();
- return 0;
+ as_fatal ("sparc_estimate_size_before_relax\n");
+ return (0);
}
#if 0
/* for debugging only */
static void
-print_insn(insn)
- struct machine_it *insn;
+print_insn (insn)
+ struct machine_it *insn;
{
- char *Reloc[] = {
+ char *Reloc[] =
+ {
"RELOC_8",
"RELOC_16",
"RELOC_32",
"RELOC_JMP_SLOT",
"RELOC_RELATIVE",
"NO_RELOC"
- };
+ };
- if (insn->error) {
- fprintf(stderr, "ERROR: %s\n");
+ if (insn->error)
+ {
+ fprintf (stderr, "ERROR: %s\n");
}
- fprintf(stderr, "opcode=0x%08x\n", insn->opcode);
- fprintf(stderr, "reloc = %s\n", Reloc[insn->reloc]);
- fprintf(stderr, "exp = {\n");
- fprintf(stderr, "\t\tX_add_symbol = %s\n",
- insn->exp.X_add_symbol ?
- (S_GET_NAME(insn->exp.X_add_symbol) ?
- S_GET_NAME(insn->exp.X_add_symbol) : "???") : "0");
- fprintf(stderr, "\t\tX_sub_symbol = %s\n",
- insn->exp.X_subtract_symbol ?
- (S_GET_NAME(insn->exp.X_subtract_symbol) ?
- S_GET_NAME(insn->exp.X_subtract_symbol) : "???") : "0");
- fprintf(stderr, "\t\tX_add_number = %d\n",
- insn->exp.X_add_number);
- fprintf(stderr, "}\n");
- return;
+ fprintf (stderr, "opcode=0x%08x\n", insn->opcode);
+ fprintf (stderr, "reloc = %s\n", Reloc[insn->reloc]);
+ fprintf (stderr, "exp = {\n");
+ fprintf (stderr, "\t\tX_add_symbol = %s\n",
+ insn->exp.X_add_symbol ?
+ (S_GET_NAME (insn->exp.X_add_symbol) ?
+ S_GET_NAME (insn->exp.X_add_symbol) : "???") : "0");
+ fprintf (stderr, "\t\tX_op_symbol = %s\n",
+ insn->exp.X_op_symbol ?
+ (S_GET_NAME (insn->exp.X_op_symbol) ?
+ S_GET_NAME (insn->exp.X_op_symbol) : "???") : "0");
+ fprintf (stderr, "\t\tX_add_number = %d\n",
+ insn->exp.X_add_number);
+ fprintf (stderr, "}\n");
+ return;
}
+
#endif
-/*
- * Sparc/A29K relocations are completely different, so it needs
- * this machine dependent routine to emit them.
- */
+/* Translate internal representation of relocation info to target format.
+
+ 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
+ bit 7 as external, bits 6 & 5 unused, and the lower
+ 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 */
+
#ifdef OBJ_AOUT
-static void emit_machine_reloc(fixP, segment_address_in_file)
-register fixS *fixP;
-relax_addressT segment_address_in_file;
+
+void
+tc_aout_fix_to_chars (where, fixP, segment_address_in_file)
+ char *where;
+ fixS *fixP;
+ relax_addressT segment_address_in_file;
{
- struct reloc_info_generic ri;
- register symbolS *symbolP;
- extern char *next_object_file_charP;
-/* !!!! long add_number; */
+ long r_symbolnum;
- bzero((char *) &ri, sizeof(ri));
- for (; fixP; fixP = fixP->fx_next) {
+ know (fixP->fx_r_type < NO_RELOC);
+ know (fixP->fx_addsy != NULL);
- if (fixP->fx_r_type >= NO_RELOC) {
- fprintf(stderr, "fixP->fx_r_type = %d\n", fixP->fx_r_type);
- abort();
- }
+ md_number_to_chars (where,
+ fixP->fx_frag->fr_address + fixP->fx_where - segment_address_in_file,
+ 4);
- if ((symbolP = fixP->fx_addsy) != NULL) {
- ri.r_address = fixP->fx_frag->fr_address +
- fixP->fx_where - segment_address_in_file;
- ri.r_addend = fixP->fx_addnumber;
- if (!S_IS_DEFINED(symbolP)) {
- ri.r_extern = 1;
- ri.r_index = symbolP->sy_number;
- } else {
- ri.r_extern = 0;
- ri.r_index = S_GET_TYPE(symbolP);
- }
- ri.r_type = fixP->fx_r_type;
+ r_symbolnum = (S_IS_DEFINED (fixP->fx_addsy)
+ ? S_GET_TYPE (fixP->fx_addsy)
+ : fixP->fx_addsy->sy_number);
- md_ri_to_chars (next_object_file_charP, &ri);
- next_object_file_charP += md_reloc_size;
- }
- }
-} /* emit_machine_reloc() */
+ where[4] = (r_symbolnum >> 16) & 0x0ff;
+ where[5] = (r_symbolnum >> 8) & 0x0ff;
+ where[6] = r_symbolnum & 0x0ff;
+ where[7] = (((!S_IS_DEFINED (fixP->fx_addsy)) << 7) & 0x80) | (0 & 0x60) | (fixP->fx_r_type & 0x1F);
+ /* Also easy */
+ md_number_to_chars (&where[8], fixP->fx_addnumber, 4);
-void (*md_emit_relocations)() = emit_machine_reloc;
+ return;
+} /* tc_aout_fix_to_chars() */
#endif /* OBJ_AOUT */
int
-md_parse_option(argP,cntP,vecP)
- char **argP;
- int *cntP;
- char ***vecP;
+md_parse_option (argP, cntP, vecP)
+ char **argP;
+ int *cntP;
+ char ***vecP;
{
- return 1;
+ return (0);
}
don't bother to predefine them unless you actually use one, since there
are a lot of them. */
-symbolS *md_undefined_symbol (name)
+symbolS *
+md_undefined_symbol (name)
char *name;
{
long regnum;
- char testbuf[5+ /*SLOP*/ 5];
+ char testbuf[5 + /*SLOP*/ 5];
if (name[0] == 'g' || name[0] == 'G' || name[0] == 'l' || name[0] == 'L')
{
if (name[1] == 'r' || name[1] == 'R')
{
/* Parse the number, make sure it has no extra zeroes or trailing
- chars */
- regnum = atol(&name[2]);
+ chars */
+ regnum = atol (&name[2]);
if (regnum > 127)
return 0;
- sprintf(testbuf, "%ld", regnum);
+ sprintf (testbuf, "%ld", regnum);
if (strcmp (testbuf, &name[2]) != 0)
- return 0; /* gr007 or lr7foo or whatever */
+ return 0; /* gr007 or lr7foo or whatever */
/* We have a wiener! Define and return a new symbol for it. */
if (name[0] == 'l' || name[0] == 'L')
regnum += 128;
- return(symbol_new(name, SEG_REGISTER, regnum, &zero_address_frag));
+ return (symbol_new (name, SEG_REGISTER, regnum, &zero_address_frag));
}
}
/* Parse an operand that is machine-specific. */
-void md_operand(expressionP)
+void
+md_operand (expressionP)
expressionS *expressionP;
{
{
/* We have a numeric register expression. No biggy. */
input_line_pointer += 2; /* Skip %% */
- (void)expression (expressionP);
- if (expressionP->X_seg != SEG_ABSOLUTE
+ (void) expression (expressionP);
+ if (expressionP->X_op != O_constant
|| expressionP->X_add_number > 255)
- as_bad("Invalid expression after %%%%\n");
- expressionP->X_seg = SEG_REGISTER;
+ as_bad ("Invalid expression after %%%%\n");
+ expressionP->X_op = O_register;
}
else if (input_line_pointer[0] == '&')
{
/* 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. */
- input_line_pointer++; /* Skip & */
- (void)expression (expressionP);
- if (expressionP->X_seg != SEG_REGISTER)
- as_bad("Invalid register in & expression");
+ input_line_pointer++; /* Skip & */
+ (void) expression (expressionP);
+ if (expressionP->X_op != O_register)
+ as_bad ("Invalid register in & expression");
else
- expressionP->X_seg = SEG_ABSOLUTE;
+ expressionP->X_op = O_constant;
}
}
/* Round up a section size to the appropriate boundary. */
-long
+valueT
md_section_align (segment, size)
segT segment;
- long size;
+ valueT size;
{
- return size; /* Byte alignment is fine */
+ return size; /* Byte alignment is fine */
}
/* Exactly what point is a PC-relative offset relative TO?
On the 29000, they're relative to the address of the instruction,
which we have set up as the address of the fixup too. */
-long md_pcrel_from (fixP)
+long
+md_pcrel_from (fixP)
fixS *fixP;
{
return fixP->fx_where + fixP->fx_frag->fr_address;
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