/* BFD semi-generic back-end for a.out binaries.
- Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000,
+ 2001
Free Software Foundation, Inc.
Written by Cygnus Support.
SECTION
a.out backends
-
DESCRIPTION
BFD supports a number of different flavours of a.out format,
static void adjust_o_magic PARAMS ((bfd *, struct internal_exec *));
static void adjust_z_magic PARAMS ((bfd *, struct internal_exec *));
static void adjust_n_magic PARAMS ((bfd *, struct internal_exec *));
+reloc_howto_type * NAME(aout,reloc_type_lookup) PARAMS ((bfd *, bfd_reloc_code_real_type));
/*
SUBSECTION
#define MY_swap_std_reloc_in NAME(aout,swap_std_reloc_in)
#endif
+#ifndef MY_swap_ext_reloc_in
+#define MY_swap_ext_reloc_in NAME(aout,swap_ext_reloc_in)
+#endif
+
#ifndef MY_swap_std_reloc_out
#define MY_swap_std_reloc_out NAME(aout,swap_std_reloc_out)
#endif
+#ifndef MY_swap_ext_reloc_out
+#define MY_swap_ext_reloc_out NAME(aout,swap_ext_reloc_out)
+#endif
+
#ifndef MY_final_link_relocate
#define MY_final_link_relocate _bfd_final_link_relocate
#endif
HOWTO( 8, 0, 2, 0, false, 0, complain_overflow_bitfield,0,"GOT_REL", false, 0,0x00000000, false),
HOWTO( 9, 0, 1, 16, false, 0, complain_overflow_bitfield,0,"BASE16", false,0xffffffff,0xffffffff, false),
HOWTO(10, 0, 2, 32, false, 0, complain_overflow_bitfield,0,"BASE32", false,0xffffffff,0xffffffff, false),
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
HOWTO(16, 0, 2, 0, false, 0, complain_overflow_bitfield,0,"JMP_TABLE", false, 0,0x00000000, false),
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
HOWTO(32, 0, 2, 0, false, 0, complain_overflow_bitfield,0,"RELATIVE", false, 0,0x00000000, false),
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
-{ -1, 0, 0, 0, false, 0, complain_overflow_dont, NULL, NULL, false, 0, 0, false },
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
HOWTO(40, 0, 2, 0, false, 0, complain_overflow_bitfield,0,"BASEREL", false, 0,0x00000000, false),
};
-#define TABLE_SIZE(TABLE) (sizeof(TABLE)/sizeof(TABLE[0]))
+#define TABLE_SIZE(TABLE) (sizeof (TABLE)/sizeof (TABLE[0]))
reloc_howto_type *
NAME(aout,reloc_type_lookup) (abfd,code)
if (ext)
switch (code)
{
+ EXT (BFD_RELOC_8, 0);
+ EXT (BFD_RELOC_16, 1);
EXT (BFD_RELOC_32, 2);
EXT (BFD_RELOC_HI22, 8);
EXT (BFD_RELOC_LO10, 11);
/* The internal_exec structure has some fields that are unused in this
configuration (IE for i960), so ensure that all such uninitialized
fields are zero'd out. There are places where two of these structs
- are memcmp'd, and thus the contents do matter. */
+ are memcmp'd, and thus the contents do matter. */
memset ((PTR) execp, 0, sizeof (struct internal_exec));
/* Now fill in fields in the execp, from the bytes in the raw data. */
execp->a_info = bfd_h_get_32 (abfd, bytes->e_info);
{
struct external_exec *bytes = (struct external_exec *)raw_bytes;
- /* Now fill in fields in the raw data, from the fields in the exec struct. */
+ /* Now fill in fields in the raw data, from the fields in the exec struct. */
bfd_h_put_32 (abfd, execp->a_info , bytes->e_info);
PUT_WORD (abfd, execp->a_text , bytes->e_text);
PUT_WORD (abfd, execp->a_data , bytes->e_data);
SYNOPSIS
const bfd_target *aout_@var{size}_some_aout_object_p
(bfd *abfd,
- const bfd_target *(*callback_to_real_object_p)());
+ const bfd_target *(*callback_to_real_object_p) ());
DESCRIPTION
Some a.out variant thinks that the file open in @var{abfd}
/* The default relocation entry size is that of traditional V7 Unix. */
obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
- /* The default symbol entry size is that of traditional Unix. */
+ /* The default symbol entry size is that of traditional Unix. */
obj_symbol_entry_size (abfd) = EXTERNAL_NLIST_SIZE;
#ifdef USE_MMAP
header, should cope with them in this callback as well. */
#endif /* DOCUMENTATION */
- result = (*callback_to_real_object_p)(abfd);
+ result = (*callback_to_real_object_p) (abfd);
/* Now that the segment addresses have been worked out, take a better
guess at whether the file is executable. If the entry point
To fix this, we now accept any non-zero entry point as an indication of
executability. This will work most of the time, since only the linker
- sets the entry point, and that is likely to be non-zero for most systems. */
+ sets the entry point, and that is likely to be non-zero for most systems. */
if (execp->a_entry != 0
|| (execp->a_entry >= obj_textsec(abfd)->vma
return true;
}
-
/*
FUNCTION
aout_@var{size}_machine_type
case bfd_arch_arm:
if (machine == 0) arch_flags = M_ARM;
break;
-
+
case bfd_arch_mips:
switch (machine) {
case 0:
case bfd_mach_mips4650:
case bfd_mach_mips8000:
case bfd_mach_mips10000:
+ case bfd_mach_mips12000:
case bfd_mach_mips16:
- /* FIXME: These should be MIPS3 or MIPS4. */
+ case bfd_mach_mipsisa32:
+ case bfd_mach_mips5:
+ case bfd_mach_mipsisa64:
+ case bfd_mach_mips_sb1:
+ /* FIXME: These should be MIPS3, MIPS4, MIPS16, MIPS32, etc. */
arch_flags = M_MIPS2;
break;
default:
*unknown = false;
break;
+ case bfd_arch_cris:
+ if (machine == 0 || machine == 255) arch_flags = M_CRIS;
+ break;
+
default:
arch_flags = M_UNKNOWN;
}
return arch_flags;
}
-
/*
FUNCTION
aout_@var{size}_set_arch_mach
file_ptr text_end;
CONST struct aout_backend_data *abdp;
int ztih; /* Nonzero if text includes exec header. */
-
+
abdp = aout_backend_info (abfd);
/* Text. */
}
if (abdp && abdp->zmagic_mapped_contiguous)
{
- text_pad = (obj_datasec(abfd)->vma
- - obj_textsec(abfd)->vma
- - obj_textsec(abfd)->_raw_size);
- obj_textsec(abfd)->_raw_size += text_pad;
+ asection * text = obj_textsec (abfd);
+ asection * data = obj_datasec (abfd);
+
+ text_pad = data->vma - (text->vma + text->_raw_size);
+ /* Only pad the text section if the data
+ section is going to be placed after it. */
+ if (text_pad > 0)
+ text->_raw_size += text_pad;
}
obj_datasec(abfd)->filepos = (obj_textsec(abfd)->filepos
+ obj_textsec(abfd)->_raw_size);
-
+
/* Fix up exec header while we're at it. */
execp->a_text = obj_textsec(abfd)->_raw_size;
if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted)))
file_ptr pos = adata(abfd).exec_bytes_size;
bfd_vma vma = 0;
int pad;
-
+
/* Text. */
obj_textsec(abfd)->filepos = pos;
if (!obj_textsec(abfd)->user_set_vma)
if (!obj_datasec(abfd)->user_set_vma)
obj_datasec(abfd)->vma = BFD_ALIGN (vma, adata(abfd).segment_size);
vma = obj_datasec(abfd)->vma;
-
+
/* Since BSS follows data immediately, see if it needs alignment. */
vma += obj_datasec(abfd)->_raw_size;
pad = align_power (vma, obj_bsssec(abfd)->alignment_power) - vma;
(TARGET_PAGE_SIZE). However, newer versions of SUNOS start the text
segment right after the exec header; the latter is counted in the
text segment size, and is paged in by the kernel with the rest of
- the text. */
+ the text. */
/* This perhaps isn't the right way to do this, but made it simpler for me
to understand enough to implement it. Better would probably be to go
/* align to double at least */
newsect->alignment_power = bfd_get_arch_info(abfd)->section_align_power;
-
if (bfd_get_format (abfd) == bfd_object)
{
if (obj_textsec(abfd) == NULL && !strcmp(newsect->name, ".text")) {
obj_aout_external_syms (abfd) = syms;
obj_aout_external_sym_count (abfd) = count;
}
-
+
if (obj_aout_external_strings (abfd) == NULL
&& exec_hdr (abfd)->a_syms != 0)
{
file. */
(*_bfd_error_handler)
(_("%s: can not represent section for symbol `%s' in a.out object file format"),
- bfd_get_filename (abfd),
+ bfd_get_filename (abfd),
cache_ptr->name != NULL ? cache_ptr->name : _("*unknown*"));
bfd_set_error (bfd_error_nonrepresentable_section);
return false;
sym_pointer->e_type[0] = ((aout_symbol_type *) cache_ptr)->type;
else if ((cache_ptr->flags & BSF_GLOBAL) != 0)
sym_pointer->e_type[0] |= N_EXT;
+ else if ((cache_ptr->flags & BSF_LOCAL) != 0)
+ sym_pointer->e_type[0] &= ~N_EXT;
if ((cache_ptr->flags & BSF_CONSTRUCTOR) != 0)
{
return true;
}
\f
-/* Native-level interface to symbols. */
+/* Native-level interface to symbols. */
asymbol *
NAME(aout,make_empty_symbol) (abfd)
/* We read the symbols into a buffer, which is discarded when this
function exits. We read the strings into a buffer large enough to
- hold them all plus all the cached symbol entries. */
+ hold them all plus all the cached symbol entries. */
boolean
NAME(aout,slurp_symbol_table) (abfd)
_bfd_stringtab_free (strtab);
return false;
}
-
\f
long
NAME(aout,get_symtab) (abfd, location)
unsigned int counter = 0;
aout_symbol_type *symbase;
- if (!NAME(aout,slurp_symbol_table)(abfd))
+ if (!NAME(aout,slurp_symbol_table) (abfd))
return -1;
for (symbase = obj_aout_symbols(abfd); counter++ < bfd_get_symcount (abfd);)
- *(location++) = (asymbol *)( symbase++);
+ *(location++) = (asymbol *) ( symbase++);
*location++ =0;
return bfd_get_symcount (abfd);
}
-
\f
/* Standard reloc stuff */
-/* Output standard relocation information to a file in target byte order. */
+/* Output standard relocation information to a file in target byte order. */
extern void NAME(aout,swap_std_reloc_out)
PARAMS ((bfd *, arelent *, struct reloc_std_external *));
check for that here
*/
-
if (bfd_is_com_section (output_section)
|| bfd_is_abs_section (output_section)
|| bfd_is_und_section (output_section))
}
}
-
/* Extended stuff */
-/* Output extended relocation information to a file in target byte order. */
+/* Output extended relocation information to a file in target byte order. */
extern void NAME(aout,swap_ext_reloc_out)
PARAMS ((bfd *, arelent *, struct reloc_ext_external *));
contain 60. This macro subs the base of each section from the value
to give the true offset from the section */
-
#define MOVE_ADDRESS(ad) \
if (r_extern) { \
/* undefined symbol */ \
(struct reloc_ext_external *) relocs;
for (; counter < count; counter++, rptr++, cache_ptr++)
- NAME(aout,swap_ext_reloc_in) (abfd, rptr, cache_ptr, symbols,
- bfd_get_symcount (abfd));
+ MY_swap_ext_reloc_in (abfd, rptr, cache_ptr, symbols,
+ bfd_get_symcount (abfd));
}
else
{
for (natptr = native;
count != 0;
--count, natptr += each_size, ++generic)
- NAME(aout,swap_ext_reloc_out) (abfd, *generic, (struct reloc_ext_external *)natptr);
+ MY_swap_ext_reloc_out (abfd, *generic,
+ (struct reloc_ext_external *) natptr);
}
else
{
return 0;
}
- if (!(tblptr || NAME(aout,slurp_reloc_table)(abfd, section, symbols)))
+ if (!(tblptr || NAME(aout,slurp_reloc_table) (abfd, section, symbols)))
return -1;
if (section->flags & SEC_CONSTRUCTOR) {
bfd_set_error (bfd_error_invalid_operation);
return -1;
}
-
\f
long
NAME(aout,get_symtab_upper_bound) (abfd)
bfd *abfd;
{
- if (!NAME(aout,slurp_symbol_table)(abfd))
+ if (!NAME(aout,slurp_symbol_table) (abfd))
return -1;
return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *));
}
-/*ARGSUSED*/
- alent *
+alent *
NAME(aout,get_lineno) (ignore_abfd, ignore_symbol)
bfd *ignore_abfd ATTRIBUTE_UNUSED;
asymbol *ignore_symbol ATTRIBUTE_UNUSED;
return (alent *)NULL;
}
-/*ARGSUSED*/
void
NAME(aout,get_symbol_info) (ignore_abfd, symbol, ret)
bfd *ignore_abfd ATTRIBUTE_UNUSED;
if (stab_name == NULL)
{
- sprintf(buf, "(%d)", type_code);
+ sprintf (buf, "(%d)", type_code);
stab_name = buf;
}
ret->type = '-';
ret->stab_type = type_code;
- ret->stab_other = (unsigned)(aout_symbol(symbol)->other & 0xff);
- ret->stab_desc = (unsigned)(aout_symbol(symbol)->desc & 0xffff);
+ ret->stab_other = (unsigned) (aout_symbol(symbol)->other & 0xff);
+ ret->stab_desc = (unsigned) (aout_symbol(symbol)->desc & 0xffff);
ret->stab_name = stab_name;
}
}
-/*ARGSUSED*/
void
-NAME(aout,print_symbol) (ignore_abfd, afile, symbol, how)
- bfd *ignore_abfd ATTRIBUTE_UNUSED;
+NAME(aout,print_symbol) (abfd, afile, symbol, how)
+ bfd *abfd;
PTR afile;
asymbol *symbol;
bfd_print_symbol_type how;
switch (how) {
case bfd_print_symbol_name:
if (symbol->name)
- fprintf(file,"%s", symbol->name);
+ fprintf (file,"%s", symbol->name);
break;
case bfd_print_symbol_more:
- fprintf(file,"%4x %2x %2x",(unsigned)(aout_symbol(symbol)->desc & 0xffff),
- (unsigned)(aout_symbol(symbol)->other & 0xff),
- (unsigned)(aout_symbol(symbol)->type));
+ fprintf (file,"%4x %2x %2x",(unsigned) (aout_symbol(symbol)->desc & 0xffff),
+ (unsigned) (aout_symbol(symbol)->other & 0xff),
+ (unsigned) (aout_symbol(symbol)->type));
break;
case bfd_print_symbol_all:
{
CONST char *section_name = symbol->section->name;
+ bfd_print_symbol_vandf (abfd, (PTR)file, symbol);
- bfd_print_symbol_vandf((PTR)file,symbol);
-
- fprintf(file," %-5s %04x %02x %02x",
+ fprintf (file," %-5s %04x %02x %02x",
section_name,
- (unsigned)(aout_symbol(symbol)->desc & 0xffff),
- (unsigned)(aout_symbol(symbol)->other & 0xff),
- (unsigned)(aout_symbol(symbol)->type & 0xff));
+ (unsigned) (aout_symbol(symbol)->desc & 0xffff),
+ (unsigned) (aout_symbol(symbol)->other & 0xff),
+ (unsigned) (aout_symbol(symbol)->type & 0xff));
if (symbol->name)
- fprintf(file," %s", symbol->name);
+ fprintf (file," %s", symbol->name);
}
break;
}
CONST char *directory_name = NULL;
CONST char *main_file_name = NULL;
CONST char *current_file_name = NULL;
- CONST char *line_file_name = NULL; /* Value of current_file_name at line number. */
- CONST char *line_directory_name = NULL; /* Value of directory_name at line number. */
+ CONST char *line_file_name = NULL; /* Value of current_file_name at line number. */
+ CONST char *line_directory_name = NULL; /* Value of directory_name at line number. */
bfd_vma low_line_vma = 0;
bfd_vma low_func_vma = 0;
asymbol *func = 0;
*line_ptr = 0;
if (symbols != (asymbol **)NULL) {
for (p = symbols; *p; p++) {
- aout_symbol_type *q = (aout_symbol_type *)(*p);
+ aout_symbol_type *q = (aout_symbol_type *) (*p);
next:
switch (q->type){
case N_TEXT:
}
main_file_name = current_file_name = q->symbol.name;
- /* Look ahead to next symbol to check if that too is an N_SO. */
+ /* Look ahead to next symbol to check if that too is an N_SO. */
p++;
if (*p == NULL)
break;
- q = (aout_symbol_type *)(*p);
+ q = (aout_symbol_type *) (*p);
if (q->type != (int)N_SO)
goto next;
- /* Found a second N_SO First is directory; second is filename. */
+ /* Found a second N_SO First is directory; second is filename. */
directory_name = current_file_name;
main_file_name = current_file_name = q->symbol.name;
if (obj_textsec(abfd) != section)
}
if (main_file_name == NULL
- || main_file_name[0] == '/'
+ || IS_ABSOLUTE_PATH (main_file_name)
|| directory_name == NULL)
filelen = 0;
else
if (main_file_name != NULL)
{
- if (main_file_name[0] == '/' || directory_name == NULL)
+ if (IS_ABSOLUTE_PATH (main_file_name) || directory_name == NULL)
*filename_ptr = main_file_name;
else
{
return true;
}
-/*ARGSUSED*/
int
NAME(aout,sizeof_headers) (abfd, execable)
bfd *abfd;
{
asection *o;
- if (bfd_get_format (abfd) != bfd_object)
+ if (bfd_get_format (abfd) != bfd_object
+ || abfd->tdata.aout_data == NULL)
return true;
#define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; }
/* We have saved the hash table entry for this symbol, if
there is one. Note that we could just look it up again
in the hash table, provided we first check that it is an
- external symbol. */
+ external symbol. */
h = *sym_hash;
/* Use the name from the hash table, in case the symbol was
switch (discard)
{
case discard_none:
+ case discard_sec_merge:
break;
case discard_l:
if ((type & N_STAB) == 0
#ifdef MY_reloc_howto
howto = MY_reloc_howto(input_bfd, rel, r_index, r_extern, r_pcrel);
-#else
+#else
{
int r_jmptable;
int r_relative;
else
name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
if (! ((*finfo->info->callbacks->undefined_symbol)
- (finfo->info, name, input_bfd, input_section, r_addr)))
+ (finfo->info, name, input_bfd, input_section,
+ r_addr, true)))
return false;
}
else
name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
if (! ((*finfo->info->callbacks->undefined_symbol)
- (finfo->info, name, input_bfd, input_section, r_addr)))
+ (finfo->info, name, input_bfd, input_section,
+ r_addr, true)))
return false;
}
}
else
{
+#ifdef MY_put_ext_reloc
+ MY_put_ext_reloc (finfo->output_bfd, r_extern, r_index, p->offset,
+ howto, &erel, pr->addend);
+#else
PUT_WORD (finfo->output_bfd, p->offset, erel.r_address);
if (bfd_header_big_endian (finfo->output_bfd))
}
PUT_WORD (finfo->output_bfd, pr->addend, erel.r_addend);
+#endif /* MY_put_ext_reloc */
rel_ptr = (PTR) &erel;
}
projects / deliverable / binutils-gdb.git / blobdiff