630 lines
16 KiB
C
630 lines
16 KiB
C
|
/* a.out object file format
|
||
|
Copyright (C) 1989, 90, 91, 92, 93, 94, 95, 1996
|
||
|
Free Software Foundation, Inc.
|
||
|
|
||
|
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 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.
|
||
|
|
||
|
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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
||
|
|
||
|
#include "as.h"
|
||
|
#ifdef BFD_ASSEMBLER
|
||
|
#undef NO_RELOC
|
||
|
#include "aout/aout64.h"
|
||
|
#endif
|
||
|
#include "obstack.h"
|
||
|
|
||
|
#ifndef BFD_ASSEMBLER
|
||
|
/* in: segT out: N_TYPE bits */
|
||
|
const short seg_N_TYPE[] =
|
||
|
{
|
||
|
N_ABS,
|
||
|
N_TEXT,
|
||
|
N_DATA,
|
||
|
N_BSS,
|
||
|
N_UNDF, /* unknown */
|
||
|
N_UNDF, /* error */
|
||
|
N_UNDF, /* expression */
|
||
|
N_UNDF, /* debug */
|
||
|
N_UNDF, /* ntv */
|
||
|
N_UNDF, /* ptv */
|
||
|
N_REGISTER, /* register */
|
||
|
};
|
||
|
|
||
|
const segT N_TYPE_seg[N_TYPE + 2] =
|
||
|
{ /* N_TYPE == 0x1E = 32-2 */
|
||
|
SEG_UNKNOWN, /* N_UNDF == 0 */
|
||
|
SEG_GOOF,
|
||
|
SEG_ABSOLUTE, /* N_ABS == 2 */
|
||
|
SEG_GOOF,
|
||
|
SEG_TEXT, /* N_TEXT == 4 */
|
||
|
SEG_GOOF,
|
||
|
SEG_DATA, /* N_DATA == 6 */
|
||
|
SEG_GOOF,
|
||
|
SEG_BSS, /* N_BSS == 8 */
|
||
|
SEG_GOOF,
|
||
|
SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF,
|
||
|
SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF,
|
||
|
SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF,
|
||
|
SEG_REGISTER, /* dummy N_REGISTER for regs = 30 */
|
||
|
SEG_GOOF,
|
||
|
};
|
||
|
#endif
|
||
|
|
||
|
static void obj_aout_line PARAMS ((int));
|
||
|
static void obj_aout_weak PARAMS ((int));
|
||
|
static void obj_aout_type PARAMS ((int));
|
||
|
|
||
|
const pseudo_typeS obj_pseudo_table[] =
|
||
|
{
|
||
|
{"line", obj_aout_line, 0}, /* source code line number */
|
||
|
{"ln", obj_aout_line, 0}, /* coff line number that we use anyway */
|
||
|
|
||
|
{"weak", obj_aout_weak, 0}, /* mark symbol as weak. */
|
||
|
|
||
|
{"type", obj_aout_type, 0},
|
||
|
|
||
|
/* coff debug pseudos (ignored) */
|
||
|
{"def", s_ignore, 0},
|
||
|
{"dim", s_ignore, 0},
|
||
|
{"endef", s_ignore, 0},
|
||
|
{"ident", s_ignore, 0},
|
||
|
{"line", s_ignore, 0},
|
||
|
{"ln", s_ignore, 0},
|
||
|
{"scl", s_ignore, 0},
|
||
|
{"size", s_ignore, 0},
|
||
|
{"tag", s_ignore, 0},
|
||
|
{"val", s_ignore, 0},
|
||
|
{"version", s_ignore, 0},
|
||
|
|
||
|
{"optim", s_ignore, 0}, /* For sun386i cc (?) */
|
||
|
|
||
|
/* other stuff */
|
||
|
{"ABORT", s_abort, 0},
|
||
|
|
||
|
{NULL} /* end sentinel */
|
||
|
}; /* obj_pseudo_table */
|
||
|
|
||
|
|
||
|
#ifdef BFD_ASSEMBLER
|
||
|
|
||
|
void
|
||
|
obj_aout_frob_symbol (sym, punt)
|
||
|
symbolS *sym;
|
||
|
int *punt;
|
||
|
{
|
||
|
flagword flags;
|
||
|
asection *sec;
|
||
|
int desc, type, other;
|
||
|
|
||
|
flags = sym->bsym->flags;
|
||
|
desc = S_GET_DESC (sym);
|
||
|
type = S_GET_TYPE (sym);
|
||
|
other = S_GET_OTHER (sym);
|
||
|
sec = sym->bsym->section;
|
||
|
|
||
|
/* Only frob simple symbols this way right now. */
|
||
|
if (! (type & ~ (N_TYPE | N_EXT)))
|
||
|
{
|
||
|
if (type == (N_UNDF | N_EXT)
|
||
|
&& sec == &bfd_abs_section)
|
||
|
sym->bsym->section = sec = bfd_und_section_ptr;
|
||
|
|
||
|
if ((type & N_TYPE) != N_INDR
|
||
|
&& (type & N_TYPE) != N_SETA
|
||
|
&& (type & N_TYPE) != N_SETT
|
||
|
&& (type & N_TYPE) != N_SETD
|
||
|
&& (type & N_TYPE) != N_SETB
|
||
|
&& type != N_WARNING
|
||
|
&& (sec == &bfd_abs_section
|
||
|
|| sec == &bfd_und_section))
|
||
|
return;
|
||
|
if (flags & BSF_EXPORT)
|
||
|
type |= N_EXT;
|
||
|
|
||
|
switch (type & N_TYPE)
|
||
|
{
|
||
|
case N_SETA:
|
||
|
case N_SETT:
|
||
|
case N_SETD:
|
||
|
case N_SETB:
|
||
|
/* Set the debugging flag for constructor symbols so that
|
||
|
BFD leaves them alone. */
|
||
|
sym->bsym->flags |= BSF_DEBUGGING;
|
||
|
|
||
|
/* You can't put a common symbol in a set. The way a set
|
||
|
element works is that the symbol has a definition and a
|
||
|
name, and the linker adds the definition to the set of
|
||
|
that name. That does not work for a common symbol,
|
||
|
because the linker can't tell which common symbol the
|
||
|
user means. FIXME: Using as_bad here may be
|
||
|
inappropriate, since the user may want to force a
|
||
|
particular type without regard to the semantics of sets;
|
||
|
on the other hand, we certainly don't want anybody to be
|
||
|
mislead into thinking that their code will work. */
|
||
|
if (S_IS_COMMON (sym))
|
||
|
as_bad (_("Attempt to put a common symbol into set %s"),
|
||
|
S_GET_NAME (sym));
|
||
|
/* Similarly, you can't put an undefined symbol in a set. */
|
||
|
else if (! S_IS_DEFINED (sym))
|
||
|
as_bad (_("Attempt to put an undefined symbol into set %s"),
|
||
|
S_GET_NAME (sym));
|
||
|
|
||
|
break;
|
||
|
case N_INDR:
|
||
|
/* Put indirect symbols in the indirect section. */
|
||
|
sym->bsym->section = bfd_ind_section_ptr;
|
||
|
sym->bsym->flags |= BSF_INDIRECT;
|
||
|
if (type & N_EXT)
|
||
|
{
|
||
|
sym->bsym->flags |= BSF_EXPORT;
|
||
|
sym->bsym->flags &=~ BSF_LOCAL;
|
||
|
}
|
||
|
break;
|
||
|
case N_WARNING:
|
||
|
/* Mark warning symbols. */
|
||
|
sym->bsym->flags |= BSF_WARNING;
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
sym->bsym->flags |= BSF_DEBUGGING;
|
||
|
}
|
||
|
|
||
|
S_SET_TYPE (sym, type);
|
||
|
|
||
|
/* Double check weak symbols. */
|
||
|
if (sym->bsym->flags & BSF_WEAK)
|
||
|
{
|
||
|
if (S_IS_COMMON (sym))
|
||
|
as_bad (_("Symbol `%s' can not be both weak and common"),
|
||
|
S_GET_NAME (sym));
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void
|
||
|
obj_aout_frob_file ()
|
||
|
{
|
||
|
/* Relocation processing may require knowing the VMAs of the sections.
|
||
|
Since writing to a section will cause the BFD back end to compute the
|
||
|
VMAs, fake it out here.... */
|
||
|
bfd_byte b = 0;
|
||
|
boolean x = true;
|
||
|
if (bfd_section_size (stdoutput, text_section) != 0)
|
||
|
{
|
||
|
x = bfd_set_section_contents (stdoutput, text_section, &b, (file_ptr) 0,
|
||
|
(bfd_size_type) 1);
|
||
|
}
|
||
|
else if (bfd_section_size (stdoutput, data_section) != 0)
|
||
|
{
|
||
|
x = bfd_set_section_contents (stdoutput, data_section, &b, (file_ptr) 0,
|
||
|
(bfd_size_type) 1);
|
||
|
}
|
||
|
assert (x == true);
|
||
|
}
|
||
|
|
||
|
#else
|
||
|
|
||
|
/* Relocation. */
|
||
|
|
||
|
/*
|
||
|
* emit_relocations()
|
||
|
*
|
||
|
* Crawl along a fixS chain. Emit the segment's relocations.
|
||
|
*/
|
||
|
void
|
||
|
obj_emit_relocations (where, fixP, segment_address_in_file)
|
||
|
char **where;
|
||
|
fixS *fixP; /* Fixup chain for this segment. */
|
||
|
relax_addressT segment_address_in_file;
|
||
|
{
|
||
|
for (; fixP; fixP = fixP->fx_next)
|
||
|
if (fixP->fx_done == 0)
|
||
|
{
|
||
|
symbolS *sym;
|
||
|
|
||
|
sym = fixP->fx_addsy;
|
||
|
while (sym->sy_value.X_op == O_symbol
|
||
|
&& (! S_IS_DEFINED (sym) || S_IS_COMMON (sym)))
|
||
|
sym = sym->sy_value.X_add_symbol;
|
||
|
fixP->fx_addsy = sym;
|
||
|
|
||
|
if (! sym->sy_resolved && ! S_IS_DEFINED (sym))
|
||
|
{
|
||
|
char *file;
|
||
|
unsigned int line;
|
||
|
|
||
|
if (expr_symbol_where (sym, &file, &line))
|
||
|
as_bad_where (file, line, _("unresolved relocation"));
|
||
|
else
|
||
|
as_bad (_("bad relocation: symbol `%s' not in symbol table"),
|
||
|
S_GET_NAME (sym));
|
||
|
}
|
||
|
|
||
|
tc_aout_fix_to_chars (*where, fixP, segment_address_in_file);
|
||
|
*where += md_reloc_size;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#ifndef obj_header_append
|
||
|
/* Aout file generation & utilities */
|
||
|
void
|
||
|
obj_header_append (where, headers)
|
||
|
char **where;
|
||
|
object_headers *headers;
|
||
|
{
|
||
|
tc_headers_hook (headers);
|
||
|
|
||
|
#ifdef CROSS_COMPILE
|
||
|
md_number_to_chars (*where, headers->header.a_info, sizeof (headers->header.a_info));
|
||
|
*where += sizeof (headers->header.a_info);
|
||
|
md_number_to_chars (*where, headers->header.a_text, sizeof (headers->header.a_text));
|
||
|
*where += sizeof (headers->header.a_text);
|
||
|
md_number_to_chars (*where, headers->header.a_data, sizeof (headers->header.a_data));
|
||
|
*where += sizeof (headers->header.a_data);
|
||
|
md_number_to_chars (*where, headers->header.a_bss, sizeof (headers->header.a_bss));
|
||
|
*where += sizeof (headers->header.a_bss);
|
||
|
md_number_to_chars (*where, headers->header.a_syms, sizeof (headers->header.a_syms));
|
||
|
*where += sizeof (headers->header.a_syms);
|
||
|
md_number_to_chars (*where, headers->header.a_entry, sizeof (headers->header.a_entry));
|
||
|
*where += sizeof (headers->header.a_entry);
|
||
|
md_number_to_chars (*where, headers->header.a_trsize, sizeof (headers->header.a_trsize));
|
||
|
*where += sizeof (headers->header.a_trsize);
|
||
|
md_number_to_chars (*where, headers->header.a_drsize, sizeof (headers->header.a_drsize));
|
||
|
*where += sizeof (headers->header.a_drsize);
|
||
|
|
||
|
#else /* CROSS_COMPILE */
|
||
|
|
||
|
append (where, (char *) &headers->header, sizeof (headers->header));
|
||
|
#endif /* CROSS_COMPILE */
|
||
|
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
void
|
||
|
obj_symbol_to_chars (where, symbolP)
|
||
|
char **where;
|
||
|
symbolS *symbolP;
|
||
|
{
|
||
|
md_number_to_chars ((char *) &(S_GET_OFFSET (symbolP)), S_GET_OFFSET (symbolP), sizeof (S_GET_OFFSET (symbolP)));
|
||
|
md_number_to_chars ((char *) &(S_GET_DESC (symbolP)), S_GET_DESC (symbolP), sizeof (S_GET_DESC (symbolP)));
|
||
|
md_number_to_chars ((char *) &(symbolP->sy_symbol.n_value), S_GET_VALUE (symbolP), sizeof (symbolP->sy_symbol.n_value));
|
||
|
|
||
|
append (where, (char *) &symbolP->sy_symbol, sizeof (obj_symbol_type));
|
||
|
}
|
||
|
|
||
|
void
|
||
|
obj_emit_symbols (where, symbol_rootP)
|
||
|
char **where;
|
||
|
symbolS *symbol_rootP;
|
||
|
{
|
||
|
symbolS *symbolP;
|
||
|
|
||
|
/* Emit all symbols left in the symbol chain. */
|
||
|
for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP))
|
||
|
{
|
||
|
/* Used to save the offset of the name. It is used to point
|
||
|
to the string in memory but must be a file offset. */
|
||
|
register char *temp;
|
||
|
|
||
|
temp = S_GET_NAME (symbolP);
|
||
|
S_SET_OFFSET (symbolP, symbolP->sy_name_offset);
|
||
|
|
||
|
/* Any symbol still undefined and is not a dbg symbol is made N_EXT. */
|
||
|
if (!S_IS_DEBUG (symbolP) && !S_IS_DEFINED (symbolP))
|
||
|
S_SET_EXTERNAL (symbolP);
|
||
|
|
||
|
/* Adjust the type of a weak symbol. */
|
||
|
if (S_GET_WEAK (symbolP))
|
||
|
{
|
||
|
switch (S_GET_TYPE (symbolP))
|
||
|
{
|
||
|
case N_UNDF: S_SET_TYPE (symbolP, N_WEAKU); break;
|
||
|
case N_ABS: S_SET_TYPE (symbolP, N_WEAKA); break;
|
||
|
case N_TEXT: S_SET_TYPE (symbolP, N_WEAKT); break;
|
||
|
case N_DATA: S_SET_TYPE (symbolP, N_WEAKD); break;
|
||
|
case N_BSS: S_SET_TYPE (symbolP, N_WEAKB); break;
|
||
|
default: as_bad (_("%s: bad type for weak symbol"), temp); break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
obj_symbol_to_chars (where, symbolP);
|
||
|
S_SET_NAME (symbolP, temp);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#endif /* ! BFD_ASSEMBLER */
|
||
|
|
||
|
static void
|
||
|
obj_aout_line (ignore)
|
||
|
int ignore;
|
||
|
{
|
||
|
/* Assume delimiter is part of expression.
|
||
|
BSD4.2 as fails with delightful bug, so we
|
||
|
are not being incompatible here. */
|
||
|
new_logical_line ((char *) NULL, (int) (get_absolute_expression ()));
|
||
|
demand_empty_rest_of_line ();
|
||
|
} /* obj_aout_line() */
|
||
|
|
||
|
/* Handle .weak. This is a GNU extension. */
|
||
|
|
||
|
static void
|
||
|
obj_aout_weak (ignore)
|
||
|
int ignore;
|
||
|
{
|
||
|
char *name;
|
||
|
int c;
|
||
|
symbolS *symbolP;
|
||
|
|
||
|
do
|
||
|
{
|
||
|
name = input_line_pointer;
|
||
|
c = get_symbol_end ();
|
||
|
symbolP = symbol_find_or_make (name);
|
||
|
*input_line_pointer = c;
|
||
|
SKIP_WHITESPACE ();
|
||
|
S_SET_WEAK (symbolP);
|
||
|
if (c == ',')
|
||
|
{
|
||
|
input_line_pointer++;
|
||
|
SKIP_WHITESPACE ();
|
||
|
if (*input_line_pointer == '\n')
|
||
|
c = '\n';
|
||
|
}
|
||
|
}
|
||
|
while (c == ',');
|
||
|
demand_empty_rest_of_line ();
|
||
|
}
|
||
|
|
||
|
/* Handle .type. On {Net,Open}BSD, this is used to set the n_other field,
|
||
|
which is then apparently used when doing dynamic linking. Older
|
||
|
versions ogas ignored the .type pseudo-op, so we also ignore it if
|
||
|
we can't parse it. */
|
||
|
|
||
|
static void
|
||
|
obj_aout_type (ignore)
|
||
|
int ignore;
|
||
|
{
|
||
|
char *name;
|
||
|
int c;
|
||
|
symbolS *sym;
|
||
|
|
||
|
name = input_line_pointer;
|
||
|
c = get_symbol_end ();
|
||
|
sym = symbol_find (name);
|
||
|
*input_line_pointer = c;
|
||
|
if (sym != NULL)
|
||
|
{
|
||
|
SKIP_WHITESPACE ();
|
||
|
if (*input_line_pointer == ',')
|
||
|
{
|
||
|
++input_line_pointer;
|
||
|
SKIP_WHITESPACE ();
|
||
|
if (*input_line_pointer == '@')
|
||
|
{
|
||
|
++input_line_pointer;
|
||
|
if (strncmp (input_line_pointer, "object", 6) == 0)
|
||
|
S_SET_OTHER (sym, 1);
|
||
|
else if (strncmp (input_line_pointer, "function", 8) == 0)
|
||
|
S_SET_OTHER (sym, 2);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* Ignore everything else on the line. */
|
||
|
s_ignore (0);
|
||
|
}
|
||
|
|
||
|
void
|
||
|
obj_read_begin_hook ()
|
||
|
{
|
||
|
}
|
||
|
|
||
|
#ifndef BFD_ASSEMBLER
|
||
|
|
||
|
void
|
||
|
obj_crawl_symbol_chain (headers)
|
||
|
object_headers *headers;
|
||
|
{
|
||
|
symbolS *symbolP;
|
||
|
symbolS **symbolPP;
|
||
|
int symbol_number = 0;
|
||
|
|
||
|
tc_crawl_symbol_chain (headers);
|
||
|
|
||
|
symbolPP = &symbol_rootP; /*->last symbol chain link. */
|
||
|
while ((symbolP = *symbolPP) != NULL)
|
||
|
{
|
||
|
if (symbolP->sy_mri_common)
|
||
|
{
|
||
|
if (S_IS_EXTERNAL (symbolP))
|
||
|
as_bad (_("%s: global symbols not supported in common sections"),
|
||
|
S_GET_NAME (symbolP));
|
||
|
*symbolPP = symbol_next (symbolP);
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
if (flag_readonly_data_in_text && (S_GET_SEGMENT (symbolP) == SEG_DATA))
|
||
|
{
|
||
|
S_SET_SEGMENT (symbolP, SEG_TEXT);
|
||
|
} /* if pusing data into text */
|
||
|
|
||
|
resolve_symbol_value (symbolP, 1);
|
||
|
|
||
|
/* Skip symbols which were equated to undefined or common
|
||
|
symbols. */
|
||
|
if (symbolP->sy_value.X_op == O_symbol
|
||
|
&& (! S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)))
|
||
|
{
|
||
|
*symbolPP = symbol_next (symbolP);
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
/* OK, here is how we decide which symbols go out into the brave
|
||
|
new symtab. Symbols that do are:
|
||
|
|
||
|
* symbols with no name (stabd's?)
|
||
|
* symbols with debug info in their N_TYPE
|
||
|
|
||
|
Symbols that don't are:
|
||
|
* symbols that are registers
|
||
|
* symbols with \1 as their 3rd character (numeric labels)
|
||
|
* "local labels" as defined by S_LOCAL_NAME(name) if the -L
|
||
|
switch was passed to gas.
|
||
|
|
||
|
All other symbols are output. We complain if a deleted
|
||
|
symbol was marked external. */
|
||
|
|
||
|
|
||
|
if (!S_IS_REGISTER (symbolP)
|
||
|
&& (!S_GET_NAME (symbolP)
|
||
|
|| S_IS_DEBUG (symbolP)
|
||
|
|| !S_IS_DEFINED (symbolP)
|
||
|
|| S_IS_EXTERNAL (symbolP)
|
||
|
|| (S_GET_NAME (symbolP)[0] != '\001'
|
||
|
&& (flag_keep_locals || !S_LOCAL_NAME (symbolP)))))
|
||
|
{
|
||
|
symbolP->sy_number = symbol_number++;
|
||
|
|
||
|
/* The + 1 after strlen account for the \0 at the
|
||
|
end of each string */
|
||
|
if (!S_IS_STABD (symbolP))
|
||
|
{
|
||
|
/* Ordinary case. */
|
||
|
symbolP->sy_name_offset = string_byte_count;
|
||
|
string_byte_count += strlen (S_GET_NAME (symbolP)) + 1;
|
||
|
}
|
||
|
else /* .Stabd case. */
|
||
|
symbolP->sy_name_offset = 0;
|
||
|
symbolPP = &(symbol_next (symbolP));
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
if (S_IS_EXTERNAL (symbolP) || !S_IS_DEFINED (symbolP))
|
||
|
/* This warning should never get triggered any more.
|
||
|
Well, maybe if you're doing twisted things with
|
||
|
register names... */
|
||
|
{
|
||
|
as_bad (_("Local symbol %s never defined."), decode_local_label_name (S_GET_NAME (symbolP)));
|
||
|
} /* oops. */
|
||
|
|
||
|
/* Unhook it from the chain */
|
||
|
*symbolPP = symbol_next (symbolP);
|
||
|
} /* if this symbol should be in the output */
|
||
|
} /* for each symbol */
|
||
|
|
||
|
H_SET_SYMBOL_TABLE_SIZE (headers, symbol_number);
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Find strings by crawling along symbol table chain.
|
||
|
*/
|
||
|
|
||
|
void
|
||
|
obj_emit_strings (where)
|
||
|
char **where;
|
||
|
{
|
||
|
symbolS *symbolP;
|
||
|
|
||
|
#ifdef CROSS_COMPILE
|
||
|
/* Gotta do md_ byte-ordering stuff for string_byte_count first - KWK */
|
||
|
md_number_to_chars (*where, string_byte_count, sizeof (string_byte_count));
|
||
|
*where += sizeof (string_byte_count);
|
||
|
#else /* CROSS_COMPILE */
|
||
|
append (where, (char *) &string_byte_count, (unsigned long) sizeof (string_byte_count));
|
||
|
#endif /* CROSS_COMPILE */
|
||
|
|
||
|
for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP))
|
||
|
{
|
||
|
if (S_GET_NAME (symbolP))
|
||
|
append (&next_object_file_charP, S_GET_NAME (symbolP),
|
||
|
(unsigned long) (strlen (S_GET_NAME (symbolP)) + 1));
|
||
|
} /* walk symbol chain */
|
||
|
}
|
||
|
|
||
|
#ifndef AOUT_VERSION
|
||
|
#define AOUT_VERSION 0
|
||
|
#endif
|
||
|
|
||
|
void
|
||
|
obj_pre_write_hook (headers)
|
||
|
object_headers *headers;
|
||
|
{
|
||
|
H_SET_DYNAMIC (headers, 0);
|
||
|
H_SET_VERSION (headers, AOUT_VERSION);
|
||
|
H_SET_MACHTYPE (headers, AOUT_MACHTYPE);
|
||
|
tc_aout_pre_write_hook (headers);
|
||
|
}
|
||
|
|
||
|
void
|
||
|
DEFUN_VOID (s_sect)
|
||
|
{
|
||
|
/* Strip out the section name */
|
||
|
char *section_name;
|
||
|
char *section_name_end;
|
||
|
char c;
|
||
|
|
||
|
unsigned int len;
|
||
|
unsigned int exp;
|
||
|
char *save;
|
||
|
|
||
|
section_name = input_line_pointer;
|
||
|
c = get_symbol_end ();
|
||
|
section_name_end = input_line_pointer;
|
||
|
|
||
|
len = section_name_end - section_name;
|
||
|
input_line_pointer++;
|
||
|
save = input_line_pointer;
|
||
|
|
||
|
SKIP_WHITESPACE ();
|
||
|
if (c == ',')
|
||
|
{
|
||
|
exp = get_absolute_expression ();
|
||
|
}
|
||
|
else if (*input_line_pointer == ',')
|
||
|
{
|
||
|
input_line_pointer++;
|
||
|
exp = get_absolute_expression ();
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
input_line_pointer = save;
|
||
|
exp = 0;
|
||
|
}
|
||
|
if (exp >= 1000)
|
||
|
{
|
||
|
as_bad (_("subsegment index too high"));
|
||
|
}
|
||
|
|
||
|
if (strcmp (section_name, ".text") == 0)
|
||
|
{
|
||
|
subseg_set (SEG_TEXT, (subsegT) exp);
|
||
|
}
|
||
|
|
||
|
if (strcmp (section_name, ".data") == 0)
|
||
|
{
|
||
|
if (flag_readonly_data_in_text)
|
||
|
subseg_set (SEG_TEXT, (subsegT) exp + 1000);
|
||
|
else
|
||
|
subseg_set (SEG_DATA, (subsegT) exp);
|
||
|
}
|
||
|
|
||
|
*section_name_end = c;
|
||
|
}
|
||
|
|
||
|
#endif /* ! BFD_ASSEMBLER */
|
||
|
|
||
|
/* end of obj-aout.c */
|