/* a.out object file format
- Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001
- Free Software Foundation, Inc.
+ Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000,
+ 2001, 2002, 2003, 2004, 2005 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 2,
-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, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+ 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. */
#define OBJ_HEADER "obj-aout.h"
#include "obstack.h"
#ifndef BFD_ASSEMBLER
-/* in: segT out: N_TYPE bits */
+/* 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 */
+ 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] =
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_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 aout_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, NULL, 0} /* end sentinel */
-}; /* aout_pseudo_table */
-
#ifdef BFD_ASSEMBLER
void
-obj_aout_frob_symbol (sym, punt)
- symbolS *sym;
- int *punt ATTRIBUTE_UNUSED;
+obj_aout_frob_symbol (symbolS *sym, int *punt ATTRIBUTE_UNUSED)
{
flagword flags;
asection *sec;
}
}
else
- {
- symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
- }
+ symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
aout_symbol (symbol_get_bfdsym (sym))->type = type;
/* Double check weak symbols. */
- if (S_IS_WEAK (sym))
- {
- if (S_IS_COMMON (sym))
- as_bad (_("Symbol `%s' can not be both weak and common"),
- S_GET_NAME (sym));
- }
+ if (S_IS_WEAK (sym) && S_IS_COMMON (sym))
+ as_bad (_("Symbol `%s' can not be both weak and common"),
+ S_GET_NAME (sym));
}
void
-obj_aout_frob_file ()
+obj_aout_frob_file_before_fix (void)
{
/* 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;
+ bfd_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);
- }
+ 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);
+ x = bfd_set_section_contents (stdoutput, data_section, &b, (file_ptr) 0,
+ (bfd_size_type) 1);
+
+ assert (x);
}
#else /* ! BFD_ASSEMBLER */
/* Relocation. */
-/*
- * emit_relocations()
- *
- * Crawl along a fixS chain. Emit the segment's 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;
+obj_emit_relocations (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)
}
#ifndef obj_header_append
-/* Aout file generation & utilities */
+/* Aout file generation & utilities. */
+
+/* An AOUT header on disk is laid out in target byte order. */
+
void
-obj_header_append (where, headers)
- char **where;
- object_headers *headers;
+obj_header_append (char **where, object_headers *headers)
{
- tc_headers_hook (headers);
+ char *p;
-#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 */
+ tc_headers_hook (headers);
+#ifdef __A_OUT_GNU_H__
+#define SIZEOF_HEADER(PIECE) (sizeof (((struct exec_bytes *) 0)->PIECE))
+#else
+#define SIZEOF_HEADER(PIECE) 4
+#endif
+#define DO(PIECE) \
+ md_number_to_chars (p, headers->header.PIECE, SIZEOF_HEADER (PIECE)); \
+ p += SIZEOF_HEADER (PIECE);
+
+ p = *where;
+ DO (a_info);
+ DO (a_text);
+ DO (a_data);
+ DO (a_bss);
+ DO (a_syms);
+ DO (a_entry);
+ DO (a_trsize);
+ DO (a_drsize);
+ *where = p;
+#undef DO
+#undef SIZEOF_HEADER
}
#endif /* ! defined (obj_header_append) */
void
-obj_symbol_to_chars (where, symbolP)
- char **where;
- symbolS *symbolP;
+obj_symbol_to_chars (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));
+ char *p = *where;
+ md_number_to_chars (p, S_GET_OFFSET (symbolP), 4);
+ p += 4;
+ /* Can't use S_GET_TYPE here as it masks. */
+ *p++ = symbolP->sy_symbol.n_type;
+ *p++ = symbolP->sy_symbol.n_other;
+ md_number_to_chars (p, S_GET_DESC (symbolP), 2);
+ p += 2;
+ md_number_to_chars (p, S_GET_VALUE (symbolP), 4);
+ p += 4;
+ *where = p;
}
void
-obj_emit_symbols (where, symbol_rootP)
- char **where;
- symbolS *symbol_rootP;
+obj_emit_symbols (char **where, symbolS *symbol_rootP)
{
symbolS *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;
+ char *temp;
temp = S_GET_NAME (symbolP);
S_SET_OFFSET (symbolP, symbolP->sy_name_offset);
#endif /* ! BFD_ASSEMBLER */
static void
-obj_aout_line (ignore)
- int ignore ATTRIBUTE_UNUSED;
+obj_aout_line (int ignore ATTRIBUTE_UNUSED)
{
/* 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 ATTRIBUTE_UNUSED;
+obj_aout_weak (int ignore ATTRIBUTE_UNUSED)
{
char *name;
int c;
we can't parse it. */
static void
-obj_aout_type (ignore)
- int ignore ATTRIBUTE_UNUSED;
+obj_aout_type (int ignore ATTRIBUTE_UNUSED)
{
char *name;
int c;
{
++input_line_pointer;
if (strncmp (input_line_pointer, "object", 6) == 0)
-#ifdef BFD_ASSEMBLER
- aout_symbol (symbol_get_bfdsym (sym))->other = 1;
-#else
- S_SET_OTHER (sym, 1);
-#endif
+ S_SET_OTHER (sym, 1);
else if (strncmp (input_line_pointer, "function", 8) == 0)
-#ifdef BFD_ASSEMBLER
- aout_symbol (symbol_get_bfdsym (sym))->other = 2;
-#else
- S_SET_OTHER (sym, 2);
-#endif
+ S_SET_OTHER (sym, 2);
}
}
#ifndef BFD_ASSEMBLER
void
-obj_crawl_symbol_chain (headers)
- object_headers *headers;
+obj_crawl_symbol_chain (object_headers *headers)
{
symbolS *symbolP;
symbolS **symbolPP;
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);
/* Skip symbols which were equated to undefined or common
- symbols. */
+ symbols. Also skip defined uncommon symbols which can
+ be resolved since in this case they should have been
+ resolved to a non-symbolic constant. */
if (symbolP->sy_value.X_op == O_symbol
- && (! S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)))
+ && (! S_IS_DEFINED (symbolP)
+ || S_IS_COMMON (symbolP)
+ || symbol_resolved_p (symbolP)))
{
*symbolPP = symbol_next (symbolP);
continue;
/* 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. */
+ as_bad (_("Local symbol %s never defined."),
+ decode_local_label_name (S_GET_NAME (symbolP)));
/* 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.
- */
+/* Find strings by crawling along symbol table chain. */
void
-obj_emit_strings (where)
- char **where;
+obj_emit_strings (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 */
+ md_number_to_chars (*where, string_byte_count, 4);
+ *where += 4;
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 */
+ if (S_GET_NAME (symbolP))
+ append (where, S_GET_NAME (symbolP),
+ (unsigned long) (strlen (S_GET_NAME (symbolP)) + 1));
}
#ifndef AOUT_VERSION
#endif
void
-obj_pre_write_hook (headers)
- object_headers *headers;
+obj_pre_write_hook (object_headers *headers)
{
H_SET_DYNAMIC (headers, 0);
H_SET_VERSION (headers, AOUT_VERSION);
tc_aout_pre_write_hook (headers);
}
-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 */
#ifdef BFD_ASSEMBLER
/* Support for an AOUT emulation. */
-static void aout_pop_insert PARAMS ((void));
-static int obj_aout_s_get_other PARAMS ((symbolS *));
-static void obj_aout_s_set_other PARAMS ((symbolS *, int));
-static int obj_aout_s_get_desc PARAMS ((symbolS *));
-static void obj_aout_s_set_desc PARAMS ((symbolS *, int));
-static int obj_aout_s_get_type PARAMS ((symbolS *));
-static void obj_aout_s_set_type PARAMS ((symbolS *, int));
-static int obj_aout_separate_stab_sections PARAMS ((void));
-static int obj_aout_sec_sym_ok_for_reloc PARAMS ((asection *));
-static void obj_aout_process_stab PARAMS ((segT, int, const char *, int, int, int));
-
static void
-aout_pop_insert ()
+aout_pop_insert (void)
{
pop_insert (aout_pseudo_table);
}
static int
-obj_aout_s_get_other (sym)
- symbolS *sym;
+obj_aout_s_get_other (symbolS *sym)
{
return aout_symbol (symbol_get_bfdsym (sym))->other;
}
static void
-obj_aout_s_set_other (sym, o)
- symbolS *sym;
- int o;
+obj_aout_s_set_other (symbolS *sym, int o)
{
aout_symbol (symbol_get_bfdsym (sym))->other = o;
}
static int
-obj_aout_sec_sym_ok_for_reloc (sec)
- asection *sec ATTRIBUTE_UNUSED;
+obj_aout_sec_sym_ok_for_reloc (asection *sec ATTRIBUTE_UNUSED)
{
return obj_sec_sym_ok_for_reloc (sec);
}
static void
-obj_aout_process_stab (seg, w, s, t, o, d)
- segT seg ATTRIBUTE_UNUSED;
- int w;
- const char *s;
- int t;
- int o;
- int d;
+obj_aout_process_stab (segT seg ATTRIBUTE_UNUSED,
+ int w,
+ const char *s,
+ int t,
+ int o,
+ int d)
{
aout_process_stab (w, s, t, o, d);
}
static int
-obj_aout_s_get_desc (sym)
- symbolS *sym;
+obj_aout_s_get_desc (symbolS *sym)
{
return aout_symbol (symbol_get_bfdsym (sym))->desc;
}
static void
-obj_aout_s_set_desc (sym, d)
- symbolS *sym;
- int d;
+obj_aout_s_set_desc (symbolS *sym, int d)
{
aout_symbol (symbol_get_bfdsym (sym))->desc = d;
}
static int
-obj_aout_s_get_type (sym)
- symbolS *sym;
+obj_aout_s_get_type (symbolS *sym)
{
return aout_symbol (symbol_get_bfdsym (sym))->type;
}
static void
-obj_aout_s_set_type (sym, t)
- symbolS *sym;
- int t;
+obj_aout_s_set_type (symbolS *sym, int t)
{
aout_symbol (symbol_get_bfdsym (sym))->type = t;
}
static int
-obj_aout_separate_stab_sections ()
+obj_aout_separate_stab_sections (void)
{
return 0;
}
/* When changed, make sure these table entries match the single-format
definitions in obj-aout.h. */
+
const struct format_ops aout_format_ops =
{
bfd_target_aout_flavour,
- 1, /* dfl_leading_underscore */
- 0, /* emit_section_symbols */
- 0, /* begin */
- 0, /* app_file */
+ 1, /* dfl_leading_underscore. */
+ 0, /* emit_section_symbols. */
+ 0, /* begin. */
+ 0, /* app_file. */
obj_aout_frob_symbol,
- obj_aout_frob_file,
- 0, /* frob_file_before_adjust */
- 0, /* frob_file_after_relocs */
- 0, /* s_get_size */
- 0, /* s_set_size */
- 0, /* s_get_align */
- 0, /* s_set_align */
+ 0, /* frob_file. */
+ 0, /* frob_file_before_adjust. */
+ obj_aout_frob_file_before_fix,
+ 0, /* frob_file_after_relocs. */
+ 0, /* s_get_size. */
+ 0, /* s_set_size. */
+ 0, /* s_get_align. */
+ 0, /* s_set_align. */
obj_aout_s_get_other,
obj_aout_s_set_other,
obj_aout_s_get_desc,
obj_aout_s_set_desc,
obj_aout_s_get_type,
obj_aout_s_set_type,
- 0, /* copy_symbol_attributes */
- 0, /* generate_asm_lineno */
+ 0, /* copy_symbol_attributes. */
+ 0, /* generate_asm_lineno. */
obj_aout_process_stab,
obj_aout_separate_stab_sections,
- 0, /* init_stab_section */
+ 0, /* init_stab_section. */
obj_aout_sec_sym_ok_for_reloc,
aout_pop_insert,
- 0, /* ecoff_set_ext */
- 0, /* read_begin_hook */
- 0 /* symbol_new_hook */
+ 0, /* ecoff_set_ext. */
+ 0, /* read_begin_hook. */
+ 0 /* symbol_new_hook. */
+};
+#endif /* BFD_ASSEMBLER */
+
+const pseudo_typeS aout_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, NULL, 0}
};
-#endif BFD_ASSEMBLER
projects / thirdparty / binutils-gdb.git / blobdiff