static struct input_save *
input_scrub_push (char *saved_position)
{
register struct input_save *saved;
saved = (struct input_save *) xmalloc (sizeof *saved);
saved->saved_position = saved_position;
saved->buffer_start = buffer_start;
saved->partial_where = partial_where;
saved->partial_size = partial_size;
saved->buffer_length = buffer_length;
saved->physical_input_file = physical_input_file;
saved->logical_input_file = logical_input_file;
saved->physical_input_line = physical_input_line;
saved->logical_input_line = logical_input_line;
saved->sb_index = sb_index;
saved->from_sb = from_sb;
saved->from_sb_is_expansion = from_sb_is_expansion;
memcpy (saved->save_source, save_source, sizeof (save_source));
saved->next_saved_file = next_saved_file;
saved->input_file_save = input_file_push ();
input_file_begin (); /* Reinitialize! */
logical_input_line = -1;
logical_input_file = (char *) NULL;
buffer_length = input_file_buffer_size ();
sb_index = -1;
buffer_start = (char *) xmalloc ((BEFORE_SIZE + buffer_length
+ buffer_length + AFTER_SIZE));
memcpy (buffer_start, BEFORE_STRING, (int) BEFORE_SIZE);
return saved;
}
void
input_scrub_begin (void)
{
know (strlen (BEFORE_STRING) == BEFORE_SIZE);
know (strlen (AFTER_STRING) == AFTER_SIZE
|| (AFTER_STRING[0] == '\0' && AFTER_SIZE == 1));
input_file_begin ();
buffer_length = input_file_buffer_size ();
buffer_start = xmalloc ((BEFORE_SIZE + buffer_length + buffer_length + AFTER_SIZE));
memcpy (buffer_start, BEFORE_STRING, (int) BEFORE_SIZE);
/* Line number things. */
logical_input_line = -1;
logical_input_file = (char *) NULL;
physical_input_file = NULL; /* No file read yet. */
next_saved_file = NULL; /* At EOF, don't pop to any other file */
do_scrub_begin (flag_m68k_mri);
}
char *
input_scrub_next_buffer (char **bufp)
{
register char *limit; /*->just after last char of buffer. */
if (sb_index >= 0)
{
if (sb_index >= from_sb.len)
{
sb_kill (&from_sb);
if (from_sb_is_expansion
)
{
cond_finish_check (macro_nest);
#ifdef md_macro_end
/* Allow the target to clean up per-macro expansion
data. */
md_macro_end ();
#endif
}
--macro_nest;
partial_where = NULL;
if (next_saved_file != NULL)
*bufp = input_scrub_pop (next_saved_file);
return partial_where;
}
partial_where = from_sb.ptr + from_sb.len;
partial_size = 0;
*bufp = from_sb.ptr + sb_index;
sb_index = from_sb.len;
return partial_where;
}
*bufp = buffer_start + BEFORE_SIZE;
if (partial_size)
{
memmove (buffer_start + BEFORE_SIZE, partial_where,
(unsigned int) partial_size);
memcpy (buffer_start + BEFORE_SIZE, save_source, AFTER_SIZE);
}
limit = input_file_give_next_buffer (buffer_start
+ BEFORE_SIZE
+ partial_size);
if (limit)
{
register char *p; /* Find last newline. */
/* Terminate the buffer to avoid confusing TC_EOL_IN_INSN. */
*limit = '\0';
for (p = limit - 1; *p != '\n' || TC_EOL_IN_INSN (p); --p)
;
++p;
while (p <= buffer_start + BEFORE_SIZE)
{
int limoff;
limoff = limit - buffer_start;
buffer_length += input_file_buffer_size ();
buffer_start = (char *) xrealloc (buffer_start,
(BEFORE_SIZE
+ 2 * buffer_length
+ AFTER_SIZE));
*bufp = buffer_start + BEFORE_SIZE;
limit = input_file_give_next_buffer (buffer_start + limoff);
if (limit == NULL)
{
as_warn (_("partial line at end of file ignored"));
partial_where = NULL;
if (next_saved_file)
*bufp = input_scrub_pop (next_saved_file);
return NULL;
}
/* Terminate the buffer to avoid confusing TC_EOL_IN_INSN. */
*limit = '\0';
for (p = limit - 1; *p != '\n' || TC_EOL_IN_INSN (p); --p)
;
++p;
}
partial_where = p;
partial_size = limit - p;
memcpy (save_source, partial_where, (int) AFTER_SIZE);
memcpy (partial_where, AFTER_STRING, (int) AFTER_SIZE);
}
else
{
partial_where = 0;
if (partial_size > 0)
{
as_warn (_("partial line at end of file ignored"));
}
/* Tell the listing we've finished the file. */
LISTING_EOF ();
/* If we should pop to another file at EOF, do it. */
if (next_saved_file)
{
*bufp = input_scrub_pop (next_saved_file); /* Pop state */
/* partial_where is now correct to return, since we popped it. */
}
}
return (partial_where);
}
char *
input_scrub_next_buffer (char **bufp)
{
char *limit; /*->just after last char of buffer. */
if (sb_index != (size_t) -1)
{
if (sb_index >= from_sb.len)
{
sb_kill (&from_sb);
if (from_sb_is_expansion)
{
cond_finish_check (macro_nest);
#ifdef md_macro_end
/* Allow the target to clean up per-macro expansion
data. */
md_macro_end ();
#endif
}
--macro_nest;
partial_where = NULL;
partial_size = 0;
if (next_saved_file != NULL)
*bufp = input_scrub_pop (next_saved_file);
return partial_where;
}
partial_where = from_sb.ptr + from_sb.len;
partial_size = 0;
*bufp = from_sb.ptr + sb_index;
sb_index = from_sb.len;
return partial_where;
}
if (partial_size)
{
memmove (buffer_start + BEFORE_SIZE, partial_where,
(unsigned int) partial_size);
memcpy (buffer_start + BEFORE_SIZE, save_source, AFTER_SIZE);
}
while (1)
{
char *p;
*bufp = buffer_start + BEFORE_SIZE;
limit = input_file_give_next_buffer (buffer_start
+ BEFORE_SIZE
+ partial_size);
if (!limit)
{
if (partial_size == 0)
break;
as_warn (_("end of file not at end of a line; newline inserted"));
p = buffer_start + BEFORE_SIZE + partial_size;
*p++ = '\n';
limit = p;
}
else
{
/* Terminate the buffer to avoid confusing TC_EOL_IN_INSN. */
*limit = '\0';
/* Find last newline. */
for (p = limit - 1; *p != '\n' || TC_EOL_IN_INSN (p); --p)
;
++p;
}
if (p != buffer_start + BEFORE_SIZE)
{
partial_where = p;
partial_size = limit - p;
memcpy (save_source, partial_where, (int) AFTER_SIZE);
memcpy (partial_where, AFTER_STRING, (int) AFTER_SIZE);
return partial_where;
}
partial_size = limit - (buffer_start + BEFORE_SIZE);
buffer_length += input_file_buffer_size ();
buffer_start = (char *) xrealloc (buffer_start,
(BEFORE_SIZE
+ 2 * buffer_length
+ AFTER_SIZE + 1));
}
/* Tell the listing we've finished the file. */
LISTING_EOF ();
/* If we should pop to another file at EOF, do it. */
partial_where = NULL;
if (next_saved_file)
*bufp = input_scrub_pop (next_saved_file);
return partial_where;
}