Avoid setting or recording negative alignments when the target stores multiple octets in a single byte.

gas	* read.c (finish_bundle): Avoid recording a negative alignment.
	(do_align): Use unsigned values for n, len and max.  Only create
	a frag if the alignment requirement is greater than the minimum
	byte alignment.  Avoid recording a negative alignment.
	(s_align): Use unsigned values where appropriate.
	(bss_alloc): Use an unsigned value for the alignment.
	(sizeof_sleb128): Add a comment noting that we encode one octet
	per byte, regardless of the value of OCTETS_PER_BYTE_POWER.
	(emit_leb129_expr): Abort if the emitted encoding was longer than
	expected.
	* read.h (output_leb128): Update prototype.
	(sizeof_leb128): Update prototype.
	(bss_alloc): Update prototype.
	* write.c (record_alignment): Use an unsigned value for the
	alignment.  Do not record alignments less than the minimum
	alignment for a byte.
	* write.h (record_alignment): Update prototype.

1 files changed, 3 insertions, 3 deletions

diff --git a/gas/write.h b/gas/write.h
index b1bc778..4aee78d 100644
--- a/gas/write.h
+++ b/gas/write.h
@@ -166,9 +166,9 @@ extern addressT dot_value;
 extern fragS *dot_frag;
 extern struct reloc_list* reloc_list;
 
-extern void append (char **charPP, char *fromP, unsigned long length);
-extern void record_alignment (segT seg, int align);
-extern int get_recorded_alignment (segT seg);
+extern void append (char **, char *, unsigned long);
+extern void record_alignment (segT, unsigned);
+extern int get_recorded_alignment (segT);
 extern void write_object_file (void);
 extern long relax_frag (segT, fragS *, long);
 extern int relax_segment (struct frag *, segT, int);