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* som.c (som_write_space_strings): New function.

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(som_write_symbol_strings): New function.
This commit is contained in:
Jeff Law 1993-11-14 00:33:00 +00:00
parent 9d0dea6fca
commit 0b35f7ec59
2 changed files with 182 additions and 0 deletions
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2
bfd/ChangeLog
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@ -2,6 +2,8 @@ Sat Nov 13 15:27:15 1993 Jeffrey A. Law (law@snake.cs.utah.edu)
* som.c (som_prep_for_fixups): New function.
(som_write_fixups): New function.
(som_write_space_strings): New function.
(som_write_symboL_strings): New function.
Fri Nov 12 15:29:36 1993 Jeffrey A. Law (law@snake.cs.utah.edu)

180
bfd/som.c
View File

@ -169,6 +169,11 @@ static boolean som_write_headers PARAMS ((bfd *));
static boolean som_build_and_write_symbol_table PARAMS ((bfd *));
static void som_prep_for_fixups PARAMS ((bfd *, asymbol **, unsigned long));
static boolean som_write_fixups PARAMS ((bfd *, unsigned long, unsigned int *));
static boolean som_write_space_strings PARAMS ((bfd *, unsigned long,
unsigned int *));
static boolean som_write_symbol_strings PARAMS ((bfd *, unsigned long,
asymbol **, unsigned int,
unsigned *));
static reloc_howto_type som_hppa_howto_table[] =
{
@ -1795,6 +1800,181 @@ som_write_fixups (abfd, current_offset, total_reloc_sizep)
return true;
}
/* Write out the space/subspace string table. */
static boolean
som_write_space_strings (abfd, current_offset, string_sizep)
bfd *abfd;
unsigned long current_offset;
unsigned int *string_sizep;
{
unsigned char *tmp_space, *p;
unsigned int strings_size = 0;
asection *section;
/* Get a chunk of memory that we can use as buffer space, then throw
away. */
tmp_space = alloca (SOM_TMP_BUFSIZE);
bzero (tmp_space, SOM_TMP_BUFSIZE);
p = tmp_space;
/* Seek to the start of the space strings in preparation for writing
them out. */
if (bfd_seek (abfd, current_offset, SEEK_SET) != 0)
{
bfd_error = system_call_error;
return false;
}
/* Walk through all the spaces and subspaces (order is not important)
building up and writing string table entries for their names. */
for (section = abfd->sections; section != NULL; section = section->next)
{
int length;
/* Only work with space/subspaces; avoid any other sections
which might have been made (.text for example). */
if (som_section_data (section)->is_space == 0
&& som_section_data (section)->is_subspace == 0)
continue;
/* Get the length of the space/subspace name. */
length = strlen (section->name);
/* If there is not enough room for the next entry, then dump the
current buffer contents now. Each entry will take 4 bytes to
hold the string length + the string itself + null terminator. */
if (p - tmp_space + 5 + length > SOM_TMP_BUFSIZE)
{
if (bfd_write ((PTR) tmp_space, p - tmp_space, 1, abfd)
!= p - tmp_space)
{
bfd_error = system_call_error;
return false;
}
/* Reset to beginning of the buffer space. */
p = tmp_space;
}
/* First element in a string table entry is the length of the
string. Alignment issues are already handled. */
bfd_put_32 (abfd, length, p);
p += 4;
strings_size += 4;
/* Record the index in the space/subspace records. */
if (som_section_data (section)->is_space)
som_section_data (section)->space_dict.name.n_strx = strings_size;
else
som_section_data (section)->subspace_dict.name.n_strx = strings_size;
/* Next comes the string itself + a null terminator. */
strcpy (p, section->name);
p += length + 1;
strings_size += length + 1;
/* Always align up to the next word boundary. */
while (strings_size % 4)
{
bfd_put_8 (abfd, 0, p);
p++;
strings_size++;
}
}
/* Done with the space/subspace strings. Write out any information
contained in a partial block. */
if (bfd_write ((PTR) tmp_space, p - tmp_space, 1, abfd) != p - tmp_space)
{
bfd_error = system_call_error;
return false;
}
*string_sizep = strings_size;
return true;
}
/* Write out the symbol string table. */
static boolean
som_write_symbol_strings (abfd, current_offset, syms, num_syms, string_sizep)
bfd *abfd;
unsigned long current_offset;
asymbol **syms;
unsigned int num_syms;
unsigned int *string_sizep;
{
unsigned int i;
unsigned char *tmp_space, *p;
unsigned int strings_size = 0;
/* Get a chunk of memory that we can use as buffer space, then throw
away. */
tmp_space = alloca (SOM_TMP_BUFSIZE);
bzero (tmp_space, SOM_TMP_BUFSIZE);
p = tmp_space;
/* Seek to the start of the space strings in preparation for writing
them out. */
if (bfd_seek (abfd, current_offset, SEEK_SET) != 0)
{
bfd_error = system_call_error;
return false;
}
for (i = 0; i < num_syms; i++)
{
int length = strlen (syms[i]->name);
/* If there is not enough room for the next entry, then dump the
current buffer contents now. */
if (p - tmp_space + 5 + length > SOM_TMP_BUFSIZE)
{
if (bfd_write ((PTR) tmp_space, p - tmp_space, 1, abfd)
!= p - tmp_space)
{
bfd_error = system_call_error;
return false;
}
/* Reset to beginning of the buffer space. */
p = tmp_space;
}
/* First element in a string table entry is the length of the
string. This must always be 4 byte aligned. This is also
an appropriate time to fill in the string index field in the
symbol table entry. */
bfd_put_32 (abfd, length, p);
strings_size += 4;
p += 4;
/* Next comes the string itself + a null terminator. */
strcpy (p, syms[i]->name);
/* ACK. FIXME. */
syms[i]->name = (char *)strings_size;
p += length + 1;
strings_size += length + 1;
/* Always align up to the next word boundary. */
while (strings_size % 4)
{
bfd_put_8 (abfd, 0, p);
strings_size++;
p++;
}
}
/* Scribble out any partial block. */
if (bfd_write ((PTR) tmp_space, p - tmp_space, 1, abfd) != p - tmp_space)
{
bfd_error = system_call_error;
return false;
}
*string_sizep = strings_size;
return true;
}
/* Finally, scribble out the various headers to the disk. */
static boolean