#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "libaout.h"
#define EXE_MAGIC 0x5a4d
#define EXE_LOAD_HIGH 0x0000
#define EXE_LOAD_LOW 0xffff
#define EXE_PAGE_SIZE 512
static int msdos_sizeof_headers
PARAMS ((bfd *, bfd_boolean));
static bfd_boolean msdos_write_object_contents
PARAMS ((bfd *));
static bfd_boolean msdos_set_section_contents
PARAMS ((bfd *, sec_ptr, const PTR, file_ptr, bfd_size_type));
static int
msdos_sizeof_headers (abfd, exec)
bfd *abfd ATTRIBUTE_UNUSED;
bfd_boolean exec ATTRIBUTE_UNUSED;
{
return 0;
}
static bfd_boolean
msdos_write_object_contents (abfd)
bfd *abfd;
{
static char hdr[EXE_PAGE_SIZE];
file_ptr outfile_size = sizeof(hdr);
bfd_vma high_vma = 0;
asection *sec;
for (sec = abfd->sections; sec != (asection *) NULL; sec = sec->next)
{
if (sec->size == 0)
continue;
if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
{
bfd_vma sec_vma = bfd_get_section_vma (abfd, sec) + sec->size;
if (sec_vma > high_vma)
high_vma = sec_vma;
}
if (bfd_get_section_flags (abfd, sec) & SEC_LOAD)
{
file_ptr sec_end = (sizeof (hdr)
+ bfd_get_section_vma (abfd, sec)
+ sec->size);
if (sec_end > outfile_size)
outfile_size = sec_end;
}
}
if (high_vma > (bfd_vma)0xffff)
{
bfd_set_error(bfd_error_file_too_big);
return FALSE;
}
H_PUT_16 (abfd, EXE_MAGIC, &hdr[0]);
H_PUT_16 (abfd, EXE_PAGE_SIZE / 16, &hdr[8]);
H_PUT_16 (abfd, EXE_LOAD_LOW, &hdr[12]);
H_PUT_16 (abfd, 0x3e, &hdr[24]);
H_PUT_16 (abfd, 0x0001, &hdr[28]);
H_PUT_16 (abfd, 0x30fb, &hdr[30]);
H_PUT_16 (abfd, 0x726a, &hdr[32]);
H_PUT_16 (abfd, outfile_size & (EXE_PAGE_SIZE - 1), &hdr[2]);
H_PUT_16 (abfd, (outfile_size + EXE_PAGE_SIZE - 1) / EXE_PAGE_SIZE, &hdr[4]);
H_PUT_16 (abfd, high_vma, &hdr[16]);
if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
|| bfd_bwrite (hdr, (bfd_size_type) sizeof(hdr), abfd) != sizeof(hdr))
return FALSE;
return TRUE;
}
static bfd_boolean
msdos_set_section_contents (abfd, section, location, offset, count)
bfd *abfd;
sec_ptr section;
const PTR location;
file_ptr offset;
bfd_size_type count;
{
if (count == 0)
return TRUE;
section->filepos = EXE_PAGE_SIZE + bfd_get_section_vma (abfd, section);
if (bfd_get_section_flags (abfd, section) & SEC_LOAD)
{
if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
|| bfd_bwrite (location, count, abfd) != count)
return FALSE;
}
return TRUE;
}
#define msdos_mkobject aout_32_mkobject
#define msdos_make_empty_symbol aout_32_make_empty_symbol
#define msdos_bfd_reloc_type_lookup aout_32_reloc_type_lookup
#define msdos_close_and_cleanup _bfd_generic_close_and_cleanup
#define msdos_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
#define msdos_new_section_hook _bfd_generic_new_section_hook
#define msdos_get_section_contents _bfd_generic_get_section_contents
#define msdos_get_section_contents_in_window \
_bfd_generic_get_section_contents_in_window
#define msdos_get_section_contents_in_window_with_mode \
_bfd_generic_get_section_contents_in_window_with_mode
#define msdos_bfd_get_relocated_section_contents \
bfd_generic_get_relocated_section_contents
#define msdos_bfd_relax_section bfd_generic_relax_section
#define msdos_bfd_gc_sections bfd_generic_gc_sections
#define msdos_bfd_merge_sections bfd_generic_merge_sections
#define msdos_bfd_is_group_section bfd_generic_is_group_section
#define msdos_bfd_discard_group bfd_generic_discard_group
#define msdos_section_already_linked \
_bfd_generic_section_already_linked
#define msdos_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
#define msdos_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
#define msdos_bfd_link_add_symbols _bfd_generic_link_add_symbols
#define msdos_bfd_link_just_syms _bfd_generic_link_just_syms
#define msdos_bfd_final_link _bfd_generic_final_link
#define msdos_bfd_link_split_section _bfd_generic_link_split_section
#define msdos_set_arch_mach _bfd_generic_set_arch_mach
#define msdos_get_symtab_upper_bound _bfd_nosymbols_get_symtab_upper_bound
#define msdos_canonicalize_symtab _bfd_nosymbols_canonicalize_symtab
#define msdos_print_symbol _bfd_nosymbols_print_symbol
#define msdos_get_symbol_info _bfd_nosymbols_get_symbol_info
#define msdos_find_nearest_line _bfd_nosymbols_find_nearest_line
#define msdos_find_inliner_info _bfd_nosymbols_find_inliner_info
#define msdos_get_lineno _bfd_nosymbols_get_lineno
#define msdos_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define msdos_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name
#define msdos_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
#define msdos_read_minisymbols _bfd_nosymbols_read_minisymbols
#define msdos_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol
#define msdos_canonicalize_reloc _bfd_norelocs_canonicalize_reloc
#define msdos_get_reloc_upper_bound _bfd_norelocs_get_reloc_upper_bound
#define msdos_32_bfd_link_split_section _bfd_generic_link_split_section
const bfd_target i386msdos_vec =
{
"msdos",
bfd_target_msdos_flavour,
BFD_ENDIAN_LITTLE,
BFD_ENDIAN_LITTLE,
(EXEC_P),
(SEC_CODE | SEC_DATA | SEC_HAS_CONTENTS
| SEC_ALLOC | SEC_LOAD),
0,
' ',
16,
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16,
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16,
{
_bfd_dummy_target,
_bfd_dummy_target,
_bfd_dummy_target,
_bfd_dummy_target,
},
{
bfd_false,
msdos_mkobject,
_bfd_generic_mkarchive,
bfd_false,
},
{
bfd_false,
msdos_write_object_contents,
_bfd_write_archive_contents,
bfd_false,
},
BFD_JUMP_TABLE_GENERIC (msdos),
BFD_JUMP_TABLE_COPY (_bfd_generic),
BFD_JUMP_TABLE_CORE (_bfd_nocore),
BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
BFD_JUMP_TABLE_SYMBOLS (msdos),
BFD_JUMP_TABLE_RELOCS (msdos),
BFD_JUMP_TABLE_WRITE (msdos),
BFD_JUMP_TABLE_LINK (msdos),
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
NULL,
(PTR) 0
};