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Handle arbitrarily long input lines. 

(Patch taken from gas.new.)
This commit is contained in:
mycroft 2000-01-24 19:44:37 +00:00
parent df8590ff36
commit 4170f63662
1 changed files with 32 additions and 5 deletions
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37
gnu/usr.bin/gas/input-scrub.c
View File

@ -18,7 +18,7 @@
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef lint
static char rcsid[] = "$Id: input-scrub.c,v 1.6 1994/08/25 07:36:22 pk Exp $";
static char rcsid[] = "$Id: input-scrub.c,v 1.7 2000/01/24 19:44:37 mycroft Exp $";
#endif
#include <errno.h> /* Need this to make errno declaration right */
@ -258,17 +258,44 @@ input_scrub_next_buffer (bufp)
(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);
limit = input_file_give_next_buffer (buffer_start
+ BEFORE_SIZE
+ partial_size);
if (limit)
{
register char *p; /* Find last newline. */
for (p = limit; *--p != '\n';);;
for (p = limit - 1; *p != '\n'; --p)
;
++p;
if (p <= buffer_start + BEFORE_SIZE)
while (p <= buffer_start + BEFORE_SIZE)
{
as_fatal ("Source line too long. Please change file %s then rebuild assembler.", __FILE__);
int limoff;
limoff = limit - buffer_start;
buffer_length += input_file_buffer_size ();
buffer_start = 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;
}
for (p = limit - 1; *p != '\n'; --p)
;
++p;
}
partial_where = p;
partial_size = limit - p;
memcpy (save_source, partial_where, (int) AFTER_SIZE);