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Rationalize ARM .align

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* gas/config/tc-arm.c (s_align): Delete.
	(md_pseudo_table): Use s_align_ptwo for "align".
	* gas/config/tc-arm.h (TC_ALIGN_ZERO_IS_DEFAULT): Define.
	* read.c (s_align): Modify for TC_ALIGN_ZERO_IS_DEFAULT.
This commit is contained in:
Alan Modra 2015-08-17 09:05:42 +09:30
parent 1762568fd6
commit db2ed2e0b9
4 changed files with 14 additions and 48 deletions
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7
gas/ChangeLog
View file

@ -1,3 +1,10 @@
2015-08-17 Alan Modra <amodra@gmail.com>
* gas/config/tc-arm.c (s_align): Delete.
(md_pseudo_table): Use s_align_ptwo for "align".
* gas/config/tc-arm.h (TC_ALIGN_ZERO_IS_DEFAULT): Define.
* read.c (s_align): Modify for TC_ALIGN_ZERO_IS_DEFAULT.
2015-08-13 Alan Modra <amodra@gmail.com>
* expr.c (operand): Rewrite handling of operands starting with "0f".

49
gas/config/tc-arm.c
View file

@ -2969,53 +2969,6 @@ s_syntax (int unused ATTRIBUTE_UNUSED)
/* Directives: sectioning and alignment. */
/* Same as s_align_ptwo but align 0 => align 2. */
static void
s_align (int unused ATTRIBUTE_UNUSED)
{
int temp;
bfd_boolean fill_p;
long temp_fill;
long max_alignment = 15;
temp = get_absolute_expression ();
if (temp > max_alignment)
as_bad (_("alignment too large: %d assumed"), temp = max_alignment);
else if (temp < 0)
{
as_bad (_("alignment negative. 0 assumed."));
temp = 0;
}
if (*input_line_pointer == ',')
{
input_line_pointer++;
temp_fill = get_absolute_expression ();
fill_p = TRUE;
}
else
{
fill_p = FALSE;
temp_fill = 0;
}
if (!temp)
temp = 2;
/* Only make a frag if we HAVE to. */
if (temp && !need_pass_2)
{
if (!fill_p && subseg_text_p (now_seg))
frag_align_code (temp, 0);
else
frag_align (temp, (int) temp_fill, 0);
}
demand_empty_rest_of_line ();
record_alignment (now_seg, temp);
}
static void
s_bss (int ignore ATTRIBUTE_UNUSED)
{
@ -4691,7 +4644,7 @@ const pseudo_typeS md_pseudo_table[] =
{ "qn", s_qn, 0 },
{ "unreq", s_unreq, 0 },
{ "bss", s_bss, 0 },
{ "align", s_align, 0 },
{ "align", s_align_ptwo, 2 },
{ "arm", s_arm, 0 },
{ "thumb", s_thumb, 0 },
{ "code", s_code, 0 },

1
gas/config/tc-arm.h
View file

@ -245,6 +245,7 @@ arm_min (int am_p1, int am_p2)
#define TC_FRAG_TYPE struct arm_frag_type
/* NOTE: max_chars is a local variable from frag_var / frag_variant. */
#define TC_FRAG_INIT(fragp) arm_init_frag (fragp, max_chars)
#define TC_ALIGN_ZERO_IS_DEFAULT 1
#define HANDLE_ALIGN(fragp) arm_handle_align (fragp)
#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) \
((!(FRCHAIN)->frch_next && subseg_text_p (SEG)) \

5
gas/read.c
View file

@ -1471,6 +1471,11 @@ s_align (int arg, int bytes_p)
{
align = get_absolute_expression ();
SKIP_WHITESPACE ();
#ifdef TC_ALIGN_ZERO_IS_DEFAULT
if (arg > 0 && align == 0)
align = arg;
#endif
}
if (bytes_p)