/* symbols.c -symbol table-
- Copyright (C) 1987, 90, 91, 92, 93, 94, 95, 96, 97, 98, 1999
+ Copyright (C) 1987, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
-/* #define DEBUG_SYMS / * to debug symbol list maintenance */
+/* #define DEBUG_SYMS / * to debug symbol list maintenance. */
#include <ctype.h>
/* Table of local symbols. */
static struct hash_control *local_hash;
-/* Below are commented in "symbols.h". */
+/* Below are commented in "symbols.h". */
symbolS *symbol_rootP;
symbolS *symbol_lastP;
symbolS abs_symbol;
#define debug_verify_symchain(root, last) ((void) 0)
#endif
+#define DOLLAR_LABEL_CHAR '\001'
+#define LOCAL_LABEL_CHAR '\002'
+
struct obstack notes;
static void fb_label_init PARAMS ((void));
static void print_binary PARAMS ((FILE *, const char *, expressionS *));
-/* symbol_new()
-
- Return a pointer to a new symbol. Die if we can't make a new
+/* Return a pointer to a new symbol. Die if we can't make a new
symbol. Fill in the symbol's values. Add symbol to end of symbol
chain.
-
+
This function should be called in the general case of creating a
symbol. However, if the output file symbol table has already been
set, and you are certain that this symbol won't be wanted in the
{
symbolS *symbolP = symbol_create (name, segment, valu, frag);
- /*
- * Link to end of symbol chain.
- */
+ /* Link to end of symbol chain. */
#ifdef BFD_ASSEMBLER
{
extern int symbol_table_frozen;
unsigned int name_length;
char *ret;
- name_length = strlen (name) + 1; /* +1 for \0 */
+ name_length = strlen (name) + 1; /* +1 for \0. */
obstack_grow (¬es, name, name_length);
ret = obstack_finish (¬es);
symbolS *
symbol_create (name, segment, valu, frag)
- const char *name; /* It is copied, the caller can destroy/modify */
- segT segment; /* Segment identifier (SEG_<something>) */
- valueT valu; /* Symbol value */
- fragS *frag; /* Associated fragment */
+ const char *name; /* It is copied, the caller can destroy/modify. */
+ segT segment; /* Segment identifier (SEG_<something>). */
+ valueT valu; /* Symbol value. */
+ fragS *frag; /* Associated fragment. */
{
char *preserved_copy_of_name;
symbolS *symbolP;
symbolP = (symbolS *) obstack_alloc (¬es, sizeof (symbolS));
- /* symbol must be born in some fixed state. This seems as good as any. */
+ /* symbol must be born in some fixed state. This seems as good as any. */
memset (symbolP, 0, sizeof (symbolS));
#ifdef BFD_ASSEMBLER
#endif /* ! BFD_ASSEMBLER */
\f
+/* We have just seen "<name>:".
+ Creates a struct symbol unless it already exists.
+
+ Gripes if we are redefining a symbol incompatibly (and ignores it). */
-/*
- * colon()
- *
- * We have just seen "<name>:".
- * Creates a struct symbol unless it already exists.
- *
- * Gripes if we are redefining a symbol incompatibly (and ignores it).
- *
- */
symbolS *
-colon (sym_name) /* just seen "x:" - rattle symbols & frags */
- const char *sym_name; /* symbol name, as a cannonical string */
- /* We copy this string: OK to alter later. */
+colon (sym_name) /* Just seen "x:" - rattle symbols & frags. */
+ const char *sym_name; /* Symbol name, as a cannonical string. */
+ /* We copy this string: OK to alter later. */
{
- register symbolS *symbolP; /* symbol we are working with */
+ register symbolS *symbolP; /* Symbol we are working with. */
/* Sun local labels go out of scope whenever a non-local symbol is
defined. */
(offsetT) 0,
NULL);
- /* We want to store the pointer to where to insert the jump table in the
- fr_opcode of the rs_broken_word frag. This requires a little
- hackery. */
+ /* We want to store the pointer to where to insert the jump
+ table in the fr_opcode of the rs_broken_word frag. This
+ requires a little hackery. */
while (frag_tmp
&& (frag_tmp->fr_type != rs_broken_word
|| frag_tmp->fr_opcode))
if (RESOLVE_SYMBOL_REDEFINITION (symbolP))
return symbolP;
#endif
- /*
- * Now check for undefined symbols
- */
+ /* Now check for undefined symbols. */
if (LOCAL_SYMBOL_CHECK (symbolP))
{
+#ifdef BFD_ASSEMBLER
struct local_symbol *locsym = (struct local_symbol *) symbolP;
if (locsym->lsy_section != undefined_section
locsym->lsy_section = now_seg;
local_symbol_set_frag (locsym, frag_now);
locsym->lsy_offset = frag_now_fix ();
+#endif
}
else if (!S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP))
{
{
symbolP->sy_frag = frag_now;
#ifdef OBJ_VMS
- S_SET_OTHER(symbolP, const_flag);
+ S_SET_OTHER (symbolP, const_flag);
#endif
S_SET_VALUE (symbolP, (valueT) frag_now_fix ());
S_SET_SEGMENT (symbolP, now_seg);
#ifdef N_UNDF
know (N_UNDF == 0);
-#endif /* if we have one, it better be zero. */
+#endif /* if we have one, it better be zero. */
}
else
{
- /*
- * There are still several cases to check:
- * A .comm/.lcomm symbol being redefined as
- * initialized data is OK
- * A .comm/.lcomm symbol being redefined with
- * a larger size is also OK
- *
- * This only used to be allowed on VMS gas, but Sun cc
- * on the sparc also depends on it.
- */
+ /* There are still several cases to check:
+
+ A .comm/.lcomm symbol being redefined as initialized
+ data is OK
+
+ A .comm/.lcomm symbol being redefined with a larger
+ size is also OK
+
+ This only used to be allowed on VMS gas, but Sun cc
+ on the sparc also depends on it. */
if (((!S_IS_DEBUG (symbolP)
&& (!S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP))
&& (now_seg == data_section
|| now_seg == S_GET_SEGMENT (symbolP)))
{
- /*
- * Select which of the 2 cases this is
- */
+ /* Select which of the 2 cases this is. */
if (now_seg != data_section)
{
- /*
- * New .comm for prev .comm symbol.
- * If the new size is larger we just
- * change its value. If the new size
- * is smaller, we ignore this symbol
- */
+ /* New .comm for prev .comm symbol.
+
+ If the new size is larger we just change its
+ value. If the new size is smaller, we ignore
+ this symbol. */
if (S_GET_VALUE (symbolP)
< ((unsigned) frag_now_fix ()))
{
data. */
symbolP->sy_frag = frag_now;
#ifdef OBJ_VMS
- S_SET_OTHER(symbolP, const_flag);
+ S_SET_OTHER (symbolP, const_flag);
#endif
S_SET_VALUE (symbolP, (valueT) frag_now_fix ());
- S_SET_SEGMENT (symbolP, now_seg); /* keep N_EXT bit */
+ S_SET_SEGMENT (symbolP, now_seg); /* Keep N_EXT bit. */
}
}
else
{
-#if defined (S_GET_OTHER) && defined (S_GET_DESC)
- as_fatal (_("Symbol \"%s\" is already defined as \"%s\"/%d.%d.%ld."),
- sym_name,
- segment_name (S_GET_SEGMENT (symbolP)),
- S_GET_OTHER (symbolP), S_GET_DESC (symbolP),
- (long) S_GET_VALUE (symbolP));
+#if (!defined (OBJ_AOUT) && !defined (OBJ_MAYBE_AOUT) \
+ && !defined (OBJ_BOUT) && !defined (OBJ_MAYBE_BOUT))
+ static const char *od_buf = "";
#else
- as_fatal (_("Symbol \"%s\" is already defined as \"%s\"/%ld."),
+ char od_buf[100];
+ od_buf[0] = '\0';
+#ifdef BFD_ASSEMBLER
+ if (OUTPUT_FLAVOR == bfd_target_aout_flavour)
+#endif
+ sprintf(od_buf, "%d.%d.",
+ S_GET_OTHER (symbolP),
+ S_GET_DESC (symbolP));
+#endif
+ as_fatal (_("Symbol \"%s\" is already defined as \"%s\"/%s%ld."),
sym_name,
segment_name (S_GET_SEGMENT (symbolP)),
+ od_buf,
(long) S_GET_VALUE (symbolP));
-#endif
}
- } /* if the undefined symbol has no value */
+ } /* if the undefined symbol has no value */
}
else
{
- /* Don't blow up if the definition is the same */
+ /* Don't blow up if the definition is the same. */
if (!(frag_now == symbolP->sy_frag
&& S_GET_VALUE (symbolP) == frag_now_fix ()
&& S_GET_SEGMENT (symbolP) == now_seg))
as_fatal (_("Symbol %s already defined."), sym_name);
- } /* if this symbol is not yet defined */
+ } /* if this symbol is not yet defined */
}
#ifdef BFD_ASSEMBLER
#endif /* OBJ_VMS */
symbol_table_insert (symbolP);
- } /* if we have seen this symbol before */
+ } /* if we have seen this symbol before */
if (mri_common_symbol != NULL)
{
return symbolP;
}
\f
+/* Die if we can't insert the symbol. */
-/*
- * symbol_table_insert()
- *
- * Die if we can't insert the symbol.
- *
- */
-
-void
+void
symbol_table_insert (symbolP)
symbolS *symbolP;
{
{
as_fatal (_("Inserting \"%s\" into symbol table failed: %s"),
S_GET_NAME (symbolP), error_string);
- } /* on error */
-} /* symbol_table_insert() */
+ } /* on error */
+}
\f
-/*
- * symbol_find_or_make()
- *
- * If a symbol name does not exist, create it as undefined, and insert
- * it into the symbol table. Return a pointer to it.
- */
+/* If a symbol name does not exist, create it as undefined, and insert
+ it into the symbol table. Return a pointer to it. */
+
symbolS *
symbol_find_or_make (name)
const char *name;
} /* if symbol wasn't found */
return (symbolP);
-} /* symbol_find_or_make() */
+}
symbolS *
symbol_make (name)
{
symbolS *symbolP;
- /* Let the machine description default it, e.g. for register names. */
+ /* Let the machine description default it, e.g. for register names. */
symbolP = md_undefined_symbol ((char *) name);
if (!symbolP)
symbolP = symbol_new (name, undefined_section, (valueT) 0, &zero_address_frag);
return (symbolP);
-} /* symbol_make() */
+}
-/*
- * symbol_find()
- *
- * Implement symbol table lookup.
- * In: A symbol's name as a string: '\0' can't be part of a symbol name.
- * Out: NULL if the name was not in the symbol table, else the address
- * of a struct symbol associated with that name.
- */
+/* Implement symbol table lookup.
+ In: A symbol's name as a string: '\0' can't be part of a symbol name.
+ Out: NULL if the name was not in the symbol table, else the address
+ of a struct symbol associated with that name. */
symbolS *
symbol_find (name)
#else /* STRIP_UNDERSCORE */
return (symbol_find_base (name, 0));
#endif /* STRIP_UNDERSCORE */
-} /* symbol_find() */
+}
symbolS *
symbol_find_base (name, strip_underscore)
CONST char *name;
int strip_underscore;
{
- struct local_symbol *locsym;
-
if (strip_underscore && *name == '_')
name++;
*copy = '\0';
}
- locsym = (struct local_symbol *) hash_find (local_hash, name);
- if (locsym != NULL)
- return (symbolS *) locsym;
+#ifdef BFD_ASSEMBLER
+ {
+ struct local_symbol *locsym;
+
+ locsym = (struct local_symbol *) hash_find (local_hash, name);
+ if (locsym != NULL)
+ return (symbolS *) locsym;
+ }
+#endif
return ((symbolS *) hash_find (sy_hash, name));
}
-/*
- * Once upon a time, symbols were kept in a singly linked list. At
- * least coff needs to be able to rearrange them from time to time, for
- * which a doubly linked list is much more convenient. Loic did these
- * as macros which seemed dangerous to me so they're now functions.
- * xoxorich.
- */
+/* Once upon a time, symbols were kept in a singly linked list. At
+ least coff needs to be able to rearrange them from time to time, for
+ which a doubly linked list is much more convenient. Loic did these
+ as macros which seemed dangerous to me so they're now functions.
+ xoxorich. */
-/* Link symbol ADDME after symbol TARGET in the chain. */
-void
+/* Link symbol ADDME after symbol TARGET in the chain. */
+
+void
symbol_append (addme, target, rootPP, lastPP)
symbolS *addme;
symbolS *target;
*rootPP = addme;
*lastPP = addme;
return;
- } /* if the list is empty */
+ } /* if the list is empty */
if (target->sy_next != NULL)
{
{
know (*lastPP == target);
*lastPP = addme;
- } /* if we have a next */
+ } /* if we have a next */
addme->sy_next = target->sy_next;
target->sy_next = addme;
debug_verify_symchain (symbol_rootP, symbol_lastP);
}
-/* Set the chain pointers of SYMBOL to null. */
-void
+/* Set the chain pointers of SYMBOL to null. */
+
+void
symbol_clear_list_pointers (symbolP)
symbolS *symbolP;
{
}
#ifdef SYMBOLS_NEED_BACKPOINTERS
-/* Remove SYMBOLP from the list. */
-void
+/* Remove SYMBOLP from the list. */
+
+void
symbol_remove (symbolP, rootPP, lastPP)
symbolS *symbolP;
symbolS **rootPP;
if (symbolP == *rootPP)
{
*rootPP = symbolP->sy_next;
- } /* if it was the root */
+ } /* if it was the root */
if (symbolP == *lastPP)
{
*lastPP = symbolP->sy_previous;
- } /* if it was the tail */
+ } /* if it was the tail */
if (symbolP->sy_next != NULL)
{
symbolP->sy_next->sy_previous = symbolP->sy_previous;
- } /* if not last */
+ } /* if not last */
if (symbolP->sy_previous != NULL)
{
symbolP->sy_previous->sy_next = symbolP->sy_next;
- } /* if not first */
+ } /* if not first */
debug_verify_symchain (*rootPP, *lastPP);
}
-/* Link symbol ADDME before symbol TARGET in the chain. */
-void
+/* Link symbol ADDME before symbol TARGET in the chain. */
+
+void
symbol_insert (addme, target, rootPP, lastPP)
symbolS *addme;
symbolS *target;
symbolS **rootPP;
- symbolS **lastPP;
+ symbolS **lastPP ATTRIBUTE_UNUSED;
{
if (LOCAL_SYMBOL_CHECK (addme))
abort ();
{
know (*rootPP == target);
*rootPP = addme;
- } /* if not first */
+ } /* if not first */
addme->sy_previous = target->sy_previous;
target->sy_previous = addme;
#endif /* SYMBOLS_NEED_BACKPOINTERS */
-void
+void
verify_symbol_chain (rootP, lastP)
symbolS *rootP;
symbolS *lastP;
valueT final_val;
segT final_seg;
+#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (symp))
{
struct local_symbol *locsym = (struct local_symbol *) symp;
if (local_symbol_resolved_p (locsym))
- return locsym->lsy_offset;
+ return locsym->lsy_offset / bfd_octets_per_byte (stdoutput);
final_val = (local_symbol_get_frag (locsym)->fr_address
- + locsym->lsy_offset);
+ + locsym->lsy_offset) / bfd_octets_per_byte (stdoutput);
if (finalize)
{
return final_val;
}
+#endif
if (symp->sy_resolved)
{
if (symp->sy_resolving)
{
if (finalize)
- as_bad (_("Symbol definition loop encountered at %s"), S_GET_NAME (symp));
+ as_bad (_("Symbol definition loop encountered at %s"),
+ S_GET_NAME (symp));
final_val = 0;
resolved = 1;
}
/* Fall through. */
case O_constant:
- final_val += symp->sy_frag->fr_address;
+ final_val += symp->sy_frag->fr_address / OCTETS_PER_BYTE;
if (final_seg == expr_section)
final_seg = absolute_section;
resolved = 1;
expressions, such as IEEE-695. */
/* Don't emit messages unless we're finalizing the symbol value,
otherwise we may get the same message multiple times. */
- if ((seg_left != absolute_section || seg_right != absolute_section)
- && (op != O_subtract || seg_left != seg_right)
+ if ((seg_left != absolute_section
+ || seg_right != absolute_section)
+ && (op != O_subtract
+ || seg_left != seg_right
+ || seg_left == undefined_section)
&& finalize)
{
char *file;
S_GET_NAME (symp->sy_value.X_op_symbol));
if (seg_left != undefined_section
&& seg_right != undefined_section)
- as_bad_where (file, line, _("invalid section for operation"));
+ as_bad_where (file, line,
+ _("invalid section for operation"));
}
else
{
final_seg = absolute_section;
resolved = (symbol_resolved_p (add_symbol)
&& symbol_resolved_p (op_symbol));
- break;
+ break;
case O_register:
case O_big:
symp->sy_resolved = 1;
else if (S_GET_SEGMENT (symp) != expr_section)
{
- as_bad (_("can't resolve value for symbol \"%s\""), S_GET_NAME (symp));
+ as_bad (_("can't resolve value for symbol \"%s\""),
+ S_GET_NAME (symp));
symp->sy_resolved = 1;
}
}
static void
resolve_local_symbol (key, value)
- const char *key;
+ const char *key ATTRIBUTE_UNUSED;
PTR value;
{
if (value != NULL)
static unsigned long dollar_label_count;
static unsigned long dollar_label_max;
-int
+int
dollar_label_defined (label)
long label;
{
if (*i == label)
return dollar_label_defines[i - dollar_labels];
- /* if we get here, label isn't defined */
+ /* If we get here, label isn't defined. */
return 0;
-} /* dollar_label_defined() */
+}
static long
dollar_label_instance (label)
if (*i == label)
return (dollar_label_instances[i - dollar_labels]);
- /* If we get here, we haven't seen the label before, therefore its instance
- count is zero. */
+ /* If we get here, we haven't seen the label before.
+ Therefore its instance count is zero. */
return 0;
}
-void
+void
dollar_label_clear ()
{
memset (dollar_label_defines, '\0', (unsigned int) dollar_label_count);
#define DOLLAR_LABEL_BUMP_BY 10
-void
+void
define_dollar_label (label)
long label;
{
return;
}
- /* if we get to here, we don't have label listed yet. */
+ /* If we get to here, we don't have label listed yet. */
if (dollar_labels == NULL)
{
dollar_label_instances = (long *) xrealloc ((char *) dollar_label_instances,
dollar_label_max * sizeof (long));
dollar_label_defines = xrealloc (dollar_label_defines, dollar_label_max);
- } /* if we needed to grow */
+ } /* if we needed to grow */
dollar_labels[dollar_label_count] = label;
dollar_label_instances[dollar_label_count] = 1;
++dollar_label_count;
}
-/*
- * dollar_label_name()
- *
- * Caller must copy returned name: we re-use the area for the next name.
- *
- * The mth occurence of label n: is turned into the symbol "Ln^Am"
- * where n is the label number and m is the instance number. "L" makes
- * it a label discarded unless debugging and "^A"('\1') ensures no
- * ordinary symbol SHOULD get the same name as a local label
- * symbol. The first "4:" is "L4^A1" - the m numbers begin at 1.
- *
- * fb labels get the same treatment, except that ^B is used in place of ^A.
- */
-
-char * /* Return local label name. */
+/* Caller must copy returned name: we re-use the area for the next name.
+
+ The mth occurence of label n: is turned into the symbol "Ln^Am"
+ where n is the label number and m is the instance number. "L" makes
+ it a label discarded unless debugging and "^A"('\1') ensures no
+ ordinary symbol SHOULD get the same name as a local label
+ symbol. The first "4:" is "L4^A1" - the m numbers begin at 1.
+
+ fb labels get the same treatment, except that ^B is used in place
+ of ^A. */
+
+char * /* Return local label name. */
dollar_label_name (n, augend)
- register long n; /* we just saw "n$:" : n a number */
- register int augend; /* 0 for current instance, 1 for new instance */
+ register long n; /* we just saw "n$:" : n a number. */
+ register int augend; /* 0 for current instance, 1 for new instance. */
{
long i;
- /* Returned to caller, then copied. used for created names ("4f") */
+ /* Returned to caller, then copied. Used for created names ("4f"). */
static char symbol_name_build[24];
register char *p;
register char *q;
- char symbol_name_temporary[20]; /* build up a number, BACKWARDS */
+ char symbol_name_temporary[20]; /* Build up a number, BACKWARDS. */
know (n >= 0);
know (augend == 0 || augend == 1);
p = symbol_name_build;
+#ifdef LOCAL_LABEL_PREFIX
+ *p++ = LOCAL_LABEL_PREFIX;
+#endif
*p++ = 'L';
- /* Next code just does sprintf( {}, "%d", n); */
- /* label number */
+ /* Next code just does sprintf( {}, "%d", n); */
+ /* Label number. */
q = symbol_name_temporary;
for (*q++ = 0, i = n; i; ++q)
{
while ((*p = *--q) != '\0')
++p;
- *p++ = 1; /* ^A */
+ *p++ = DOLLAR_LABEL_CHAR; /* ^A */
- /* instance number */
+ /* Instance number. */
q = symbol_name_temporary;
for (*q++ = 0, i = dollar_label_instance (n) + augend; i; ++q)
{
}
while ((*p++ = *--q) != '\0');;
- /* The label, as a '\0' ended string, starts at symbol_name_build. */
+ /* The label, as a '\0' ended string, starts at symbol_name_build. */
return symbol_name_build;
}
-/*
- * Sombody else's idea of local labels. They are made by "n:" where n
- * is any decimal digit. Refer to them with
- * "nb" for previous (backward) n:
- * or "nf" for next (forward) n:.
- *
- * We do a little better and let n be any number, not just a single digit, but
- * since the other guy's assembler only does ten, we treat the first ten
- * specially.
- *
- * Like someone else's assembler, we have one set of local label counters for
- * entire assembly, not one set per (sub)segment like in most assemblers. This
- * implies that one can refer to a label in another segment, and indeed some
- * crufty compilers have done just that.
- *
- * Since there could be a LOT of these things, treat them as a sparse array.
- */
+/* Sombody else's idea of local labels. They are made by "n:" where n
+ is any decimal digit. Refer to them with
+ "nb" for previous (backward) n:
+ or "nf" for next (forward) n:.
+
+ We do a little better and let n be any number, not just a single digit, but
+ since the other guy's assembler only does ten, we treat the first ten
+ specially.
+
+ Like someone else's assembler, we have one set of local label counters for
+ entire assembly, not one set per (sub)segment like in most assemblers. This
+ implies that one can refer to a label in another segment, and indeed some
+ crufty compilers have done just that.
+
+ Since there could be a LOT of these things, treat them as a sparse
+ array. */
#define FB_LABEL_SPECIAL (10)
static long fb_label_count;
static long fb_label_max;
-/* this must be more than FB_LABEL_SPECIAL */
+/* This must be more than FB_LABEL_SPECIAL. */
#define FB_LABEL_BUMP_BY (FB_LABEL_SPECIAL + 6)
-static void
+static void
fb_label_init ()
{
memset ((void *) fb_low_counter, '\0', sizeof (fb_low_counter));
-} /* fb_label_init() */
+}
+
+/* Add one to the instance number of this fb label. */
-/* add one to the instance number of this fb label */
-void
+void
fb_label_instance_inc (label)
long label;
{
{
++fb_label_instances[i - fb_labels];
return;
- } /* if we find it */
- } /* for each existing label */
+ } /* if we find it */
+ } /* for each existing label */
}
- /* if we get to here, we don't have label listed yet. */
+ /* If we get to here, we don't have label listed yet. */
if (fb_labels == NULL)
{
fb_label_max * sizeof (long));
fb_label_instances = (long *) xrealloc ((char *) fb_label_instances,
fb_label_max * sizeof (long));
- } /* if we needed to grow */
+ } /* if we needed to grow */
fb_labels[fb_label_count] = label;
fb_label_instances[fb_label_count] = 1;
++fb_label_count;
}
-static long
+static long
fb_label_instance (label)
long label;
{
if (*i == label)
{
return (fb_label_instances[i - fb_labels]);
- } /* if we find it */
- } /* for each existing label */
+ } /* if we find it */
+ } /* for each existing label */
}
/* We didn't find the label, so this must be a reference to the
return 0;
}
-/*
- * fb_label_name()
- *
- * Caller must copy returned name: we re-use the area for the next name.
- *
- * The mth occurence of label n: is turned into the symbol "Ln^Bm"
- * where n is the label number and m is the instance number. "L" makes
- * it a label discarded unless debugging and "^B"('\2') ensures no
- * ordinary symbol SHOULD get the same name as a local label
- * symbol. The first "4:" is "L4^B1" - the m numbers begin at 1.
- *
- * dollar labels get the same treatment, except that ^A is used in place of ^B. */
-
-char * /* Return local label name. */
+/* Caller must copy returned name: we re-use the area for the next name.
+
+ The mth occurence of label n: is turned into the symbol "Ln^Bm"
+ where n is the label number and m is the instance number. "L" makes
+ it a label discarded unless debugging and "^B"('\2') ensures no
+ ordinary symbol SHOULD get the same name as a local label
+ symbol. The first "4:" is "L4^B1" - the m numbers begin at 1.
+
+ dollar labels get the same treatment, except that ^A is used in
+ place of ^B. */
+
+char * /* Return local label name. */
fb_label_name (n, augend)
- long n; /* we just saw "n:", "nf" or "nb" : n a number */
- long augend; /* 0 for nb, 1 for n:, nf */
+ long n; /* We just saw "n:", "nf" or "nb" : n a number. */
+ long augend; /* 0 for nb, 1 for n:, nf. */
{
long i;
- /* Returned to caller, then copied. used for created names ("4f") */
+ /* Returned to caller, then copied. Used for created names ("4f"). */
static char symbol_name_build[24];
register char *p;
register char *q;
- char symbol_name_temporary[20]; /* build up a number, BACKWARDS */
+ char symbol_name_temporary[20]; /* Build up a number, BACKWARDS. */
know (n >= 0);
know (augend == 0 || augend == 1);
p = symbol_name_build;
+#ifdef LOCAL_LABEL_PREFIX
+ *p++ = LOCAL_LABEL_PREFIX;
+#endif
*p++ = 'L';
- /* Next code just does sprintf( {}, "%d", n); */
- /* label number */
+ /* Next code just does sprintf( {}, "%d", n); */
+ /* Label number. */
q = symbol_name_temporary;
for (*q++ = 0, i = n; i; ++q)
{
while ((*p = *--q) != '\0')
++p;
- *p++ = 2; /* ^B */
+ *p++ = LOCAL_LABEL_CHAR; /* ^B */
- /* instance number */
+ /* Instance number. */
q = symbol_name_temporary;
for (*q++ = 0, i = fb_label_instance (n) + augend; i; ++q)
{
}
while ((*p++ = *--q) != '\0');;
- /* The label, as a '\0' ended string, starts at symbol_name_build. */
+ /* The label, as a '\0' ended string, starts at symbol_name_build. */
return (symbol_name_build);
-} /* fb_label_name() */
+}
-/*
- * decode name that may have been generated by foo_label_name() above. If
- * the name wasn't generated by foo_label_name(), then return it unaltered.
- * This is used for error messages.
- */
+/* Decode name that may have been generated by foo_label_name() above.
+ If the name wasn't generated by foo_label_name(), then return it
+ unaltered. This is used for error messages. */
char *
decode_local_label_name (s)
int instance_number;
char *type;
const char *message_format = _("\"%d\" (instance number %d of a %s label)");
-
- if (s[0] != 'L')
+ int index = 0;
+
+#ifdef LOCAL_LABEL_PREFIX
+ if (s[index] == LOCAL_LABEL_PREFIX)
+ ++index;
+#endif
+
+ if (s[index] != 'L')
return s;
- for (label_number = 0, p = s + 1; isdigit ((unsigned char) *p); ++p)
+ for (label_number = 0, p = s + index + 1; isdigit ((unsigned char) *p); ++p)
label_number = (10 * label_number) + *p - '0';
- if (*p == 1)
+ if (*p == DOLLAR_LABEL_CHAR)
type = "dollar";
- else if (*p == 2)
+ else if (*p == LOCAL_LABEL_CHAR)
type = "fb";
else
return s;
S_GET_VALUE (s)
symbolS *s;
{
+#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
return ((struct local_symbol *) s)->lsy_offset;
+#endif
if (!s->sy_resolved && s->sy_value.X_op != O_constant)
resolve_symbol_value (s, 1);
symbolS *s;
valueT val;
{
+#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
{
((struct local_symbol *) s)->lsy_offset = val;
return;
}
+#endif
s->sy_value.X_op = O_constant;
s->sy_value.X_add_number = (offsetT) val;
symbolS *dest, *src;
{
if (LOCAL_SYMBOL_CHECK (dest))
- abort ();
+ dest = local_symbol_convert ((struct local_symbol *) dest);
if (LOCAL_SYMBOL_CHECK (src))
- abort ();
+ src = local_symbol_convert ((struct local_symbol *) src);
#ifdef BFD_ASSEMBLER
/* In an expression, transfer the settings of these flags.
flags = s->bsym->flags;
- /* sanity check */
+ /* Sanity check. */
if ((flags & BSF_LOCAL) && (flags & BSF_GLOBAL))
abort ();
flags = s->bsym->flags;
- /* sanity check */
+ /* Sanity check. */
if ((flags & BSF_LOCAL) && (flags & BSF_GLOBAL))
abort ();
name = S_GET_NAME (s);
return (name != NULL
&& ! S_IS_DEBUG (s)
- && (strchr (name, '\001')
- || strchr (name, '\002')
+ && (strchr (name, DOLLAR_LABEL_CHAR)
+ || strchr (name, LOCAL_LABEL_CHAR)
|| (! flag_keep_locals
&& (bfd_is_local_label (stdoutput, s->bsym)
|| (flag_mri
if (s->bsym->flags & BSF_SECTION_SYM)
{
if (s->bsym->section != seg)
- abort();
+ abort ();
}
else
s->bsym->section = seg;
return;
}
s->bsym->flags |= BSF_GLOBAL;
- s->bsym->flags &= ~(BSF_LOCAL|BSF_WEAK);
+ s->bsym->flags &= ~(BSF_LOCAL | BSF_WEAK);
}
void
return;
}
s->bsym->flags |= BSF_LOCAL;
- s->bsym->flags &= ~(BSF_GLOBAL|BSF_WEAK);
+ s->bsym->flags &= ~(BSF_GLOBAL | BSF_WEAK);
}
void
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
s->bsym->flags |= BSF_WEAK;
- s->bsym->flags &= ~(BSF_GLOBAL|BSF_LOCAL);
+ s->bsym->flags &= ~(BSF_GLOBAL | BSF_LOCAL);
}
void
symbolS *s;
fragS *f;
{
+#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
{
local_symbol_set_frag ((struct local_symbol *) s, f);
return;
}
+#endif
s->sy_frag = f;
}
symbol_get_frag (s)
symbolS *s;
{
+#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
return local_symbol_get_frag ((struct local_symbol *) s);
+#endif
return s->sy_frag;
}
symbol_mark_resolved (s)
symbolS *s;
{
+#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
{
local_symbol_mark_resolved ((struct local_symbol *) s);
return;
}
+#endif
s->sy_resolved = 1;
}
symbol_resolved_p (s)
symbolS *s;
{
+#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
return local_symbol_resolved_p ((struct local_symbol *) s);
+#endif
return s->sy_resolved;
}
int
symbol_section_p (s)
- symbolS *s;
+ symbolS *s ATTRIBUTE_UNUSED;
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
#ifdef BFD_ASSEMBLER
return (s->bsym->flags & BSF_SECTION_SYM) != 0;
#else
- /* FIXME */
+ /* FIXME. */
return 0;
#endif
}
/* Set the processor information for a symbol. */
void
-symbol_set_obj (s, o)
+symbol_set_tc (s, o)
symbolS *s;
TC_SYMFIELD_TYPE *o;
{
symbol_begin ()
{
symbol_lastP = NULL;
- symbol_rootP = NULL; /* In case we have 0 symbols (!!) */
+ symbol_rootP = NULL; /* In case we have 0 symbols (!!) */
sy_hash = hash_new ();
#ifdef BFD_ASSEMBLER
local_hash = hash_new ();
abs_symbol.bsym = bfd_abs_section.symbol;
#endif
#else
- /* Can't initialise a union. Sigh. */
+ /* Can't initialise a union. Sigh. */
S_SET_SEGMENT (&abs_symbol, absolute_section);
#endif
abs_symbol.sy_value.X_op = O_constant;
if (LOCAL_LABELS_FB)
fb_label_init ();
}
-
-
\f
int indent_level;
if (LOCAL_SYMBOL_CHECK (sym))
{
+#ifdef BFD_ASSEMBLER
struct local_symbol *locsym = (struct local_symbol *) sym;
if (local_symbol_get_frag (locsym) != &zero_address_frag
&& local_symbol_get_frag (locsym) != NULL)
if (local_symbol_resolved_p (locsym))
fprintf (file, " resolved");
fprintf (file, " local");
+#endif
}
else
{
{
indent_level++;
fprintf (file, "\n%*s<", indent_level * 4, "");
+#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (sym))
fprintf (file, "constant %lx",
(long) ((struct local_symbol *) sym)->lsy_offset);
else
+#endif
print_expr_1 (file, &sym->sy_value);
fprintf (file, ">");
indent_level--;
static void
print_binary (file, name, exp)
FILE *file;
- const char * name;
+ const char *name;
expressionS *exp;
{
indent_level++;
local_symbol_count, local_symbol_conversion_count);
#endif
}
-
-/* end of symbols.c */
projects / binutils.git / blobdiff