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* subsegs.c (subseg_text_p): New function.

Browse source 
* as.h (subseg_text_p): Declare.
	* read.c (do_align): Use subseg_text_p to set the default fill.
	* write.c (subsegs_finish): Likewise.
	* config/obj-coff.c (write_object_file): Likewise.
	* config/tc-i386.h (md_maybe_text): Don't define.
	(md_do_align): Use subseg_text_p to set the default fill.
	* config/tc-m32r.c (m32r_do_align): Likewise.
	* config/tc-sh.c (sh_do_align): Likewise.
	* config/tc-sparc.h (md_do_align): Likewise.
This commit is contained in:
Ian Lance Taylor 1999-06-12 16:49:51 +00:00
parent d84feeaca5
commit b9e57a387a
10 changed files with 42 additions and 35 deletions
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13
gas/ChangeLog
View file

@ -1,3 +1,16 @@
1999-06-12 Ian Lance Taylor <ian@zembu.com>
* subsegs.c (subseg_text_p): New function.
* as.h (subseg_text_p): Declare.
* read.c (do_align): Use subseg_text_p to set the default fill.
* write.c (subsegs_finish): Likewise.
* config/obj-coff.c (write_object_file): Likewise.
* config/tc-i386.h (md_maybe_text): Don't define.
(md_do_align): Use subseg_text_p to set the default fill.
* config/tc-m32r.c (m32r_do_align): Likewise.
* config/tc-sh.c (sh_do_align): Likewise.
* config/tc-sparc.h (md_do_align): Likewise.
1999-06-12 David O'Brien <obrien@freebsd.org>
* configure.in: (i[3456]86-*-freebsd*): Now defaults to ELF.

1
gas/as.h
View file

@ -585,6 +585,7 @@ void subseg_set PARAMS ((segT seg, subsegT subseg));
#ifdef BFD_ASSEMBLER
segT subseg_get PARAMS ((const char *, int));
#endif
int subseg_text_p PARAMS ((segT));
void start_dependencies PARAMS ((char *));
void register_dependency PARAMS ((char *));

5
gas/config/obj-coff.c
View file

@ -3235,6 +3235,7 @@ write_object_file ()
at the next frag. */
subseg_set (frchain_ptr->frch_seg, frchain_ptr->frch_subseg);
#ifndef SUB_SEGMENT_ALIGN
#define SUB_SEGMENT_ALIGN(SEG) 1
#endif
@ -3242,7 +3243,9 @@ write_object_file ()
md_do_align (SUB_SEGMENT_ALIGN (now_seg), (char *) NULL, 0, 0,
alignment_done);
#endif
frag_align (SUB_SEGMENT_ALIGN (now_seg), NOP_OPCODE, 0);
frag_align (SUB_SEGMENT_ALIGN (now_seg),
subseg_text_p (now_seg) ? NOP_OPCODE : 0,
0);
#ifdef md_do_align
alignment_done:
#endif

13
gas/config/tc-i386.h
View file

@ -1,5 +1,6 @@
/* tc-i386.h -- Header file for tc-i386.c
Copyright (C) 1989, 92, 93, 94, 95, 96, 97, 1998 Free Software Foundation.
Copyright (C) 1989, 92, 93, 94, 95, 96, 97, 98, 1999
Free Software Foundation.
This file is part of GAS, the GNU Assembler.
@ -432,18 +433,10 @@ extern const struct relax_type md_relax_table[];
extern int flag_16bit_code;
#ifdef BFD_ASSEMBLER
#define md_maybe_text() \
((bfd_get_section_flags (stdoutput, now_seg) & SEC_CODE) != 0)
#else
#define md_maybe_text() \
(now_seg != data_section && now_seg != bss_section)
#endif
#define md_do_align(n, fill, len, max, around) \
if ((n) && !need_pass_2 \
&& (!(fill) || ((char)*(fill) == (char)0x90 && (len) == 1)) \
&& md_maybe_text ()) \
&& subseg_text_p (now_seg)) \
{ \
char *p; \
p = frag_var (rs_align_code, 15, 1, (relax_substateT) max, \

2
gas/config/tc-m32r.c
View file

@ -245,7 +245,7 @@ m32r_do_align (n, fill, len, max)
{
/* Only do this if the fill pattern wasn't specified. */
if (fill == NULL
&& (now_seg->flags & SEC_CODE) != 0
&& subseg_text_p (now_seg)
/* Only do this special handling if aligning to at least a
4 byte boundary. */
&& n > 1

7
gas/config/tc-sh.c
View file

@ -2192,12 +2192,7 @@ sh_do_align (n, fill, len, max)
int max;
{
if (fill == NULL
#ifdef BFD_ASSEMBLER
&& (now_seg->flags & SEC_CODE) != 0
#else
&& now_seg != data_section
&& now_seg != bss_section
#endif
&& subseg_text_p (now_seg)
&& n > 1)
{
static const unsigned char big_nop_pattern[] = { 0x00, 0x09 };

2
gas/config/tc-sparc.h
View file

@ -57,7 +57,7 @@ extern int sparc_pic_code;
#define md_do_align(n, fill, len, max, around) \
if ((n) && (n) <= 10 && !need_pass_2 && !(fill) \
&& now_seg != data_section && now_seg != bss_section) \
&& subseg_text_p (now_seg)) \
{ \
char *p; \
p = frag_var (rs_align_code, 1 << n, 1, (relax_substateT) 1024, \

16
gas/read.c
View file

@ -1173,21 +1173,7 @@ do_align (n, fill, len, max)
if (fill == NULL)
{
int maybe_text;
#ifdef BFD_ASSEMBLER
if ((bfd_get_section_flags (stdoutput, now_seg) & SEC_CODE) != 0)
maybe_text = 1;
else
maybe_text = 0;
#else
if (now_seg != data_section && now_seg != bss_section)
maybe_text = 1;
else
maybe_text = 0;
#endif
if (maybe_text)
if (subseg_text_p (now_seg))
default_fill = NOP_OPCODE;
else
default_fill = 0;

15
gas/subsegs.c
View file

@ -564,6 +564,21 @@ section_symbol (sec)
#endif /* BFD_ASSEMBLER */
/* Return whether the specified segment is thought to hold text. */
int
subseg_text_p (sec)
segT sec;
{
#ifdef BFD_ASSEMBLER
return (bfd_get_section_flags (stdoutput, sec) & SEC_CODE) != 0;
#else
return (sec != data_section
&& sec != bss_section
&& strcmp (segment_name (sec), ".eh_frame") != 0);
#endif
}
void
subsegs_print_statistics (file)
FILE *file;

3
gas/write.c
View file

@ -1372,7 +1372,8 @@ subsegs_finish ()
any alignment is meaningless, and, moreover, will look weird
if we are generating a listing. */
frag_align (had_errors () ? 0 : SUB_SEGMENT_ALIGN (now_seg),
NOP_OPCODE, 0);
subseg_text_p (now_seg) ? NOP_OPCODE : 0,
0);
/* frag_align will have left a new frag.
Use this last frag for an empty ".fill".