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(s_data): Use "data_section"; it'll map to SEG_DATA or SEG_E1 if appropriate,

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as soon as I check in as.h.
(s_lcomm): Likewise with bss_section.
(s_fill): Use memset, not bzero.
whitespace/comment changes.
deleted some "#ifdef DONTDEF" sections relating to GDB symtabs.
This commit is contained in:
Ken Raeburn
1993-01-04 13:24:39 +00:00
parent 0124412e4c
commit c8863a58ef
1 changed files with 39 additions and 178 deletions
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217
gas/read.c
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@ -168,12 +168,7 @@ read_begin ()
/* set up pseudo-op tables */ /* set up pseudo-op tables */
struct hash_control *po_hash = NULL; /* use before set up: NULL->address error */ struct hash_control *po_hash;
#ifdef DONTDEF
void s_gdbline (), s_gdblinetab ();
void s_gdbbeg (), s_gdbblock (), s_gdbend (), s_gdbsym ();
#endif
static const pseudo_typeS potable[] = static const pseudo_typeS potable[] =
{ {
@ -334,12 +329,6 @@ read_a_source_file (name)
register int temp; register int temp;
/* register struct frag * fragP; JF unused *//* a frag we just made */ /* register struct frag * fragP; JF unused *//* a frag we just made */
pseudo_typeS *pop; pseudo_typeS *pop;
#ifdef DONTDEF
void gdb_block_beg ();
void gdb_block_position ();
void gdb_block_end ();
void gdb_symbols_fixup ();
#endif
buffer = input_scrub_new_file (name); buffer = input_scrub_new_file (name);
@ -828,11 +817,7 @@ s_data ()
register int temp; register int temp;
temp = get_absolute_expression (); temp = get_absolute_expression ();
#ifdef MANY_SEGMENTS subseg_set (data_section, (subsegT) temp);
subseg_new (SEG_E1, (subsegT) temp);
#else
subseg_new (SEG_DATA, (subsegT) temp);
#endif
#ifdef VMS #ifdef VMS
const_flag = 0; const_flag = 0;
@ -877,9 +862,7 @@ s_fill ()
temp_fill = get_absolute_expression (); temp_fill = get_absolute_expression ();
} }
} }
/* /* This is to be compatible with BSD 4.2 AS, not for any rational reason. */
* This is to be compatible with BSD 4.2 AS, not for any rational reason.
*/
#define BSD_FILL_SIZE_CROCK_8 (8) #define BSD_FILL_SIZE_CROCK_8 (8)
if (temp_size > BSD_FILL_SIZE_CROCK_8) if (temp_size > BSD_FILL_SIZE_CROCK_8)
{ {
@ -900,139 +883,25 @@ s_fill ()
if (temp_size && !need_pass_2) if (temp_size && !need_pass_2)
{ {
p = frag_var (rs_fill, (int) temp_size, (int) temp_size, (relax_substateT) 0, (symbolS *) 0, temp_repeat, (char *) 0); p = frag_var (rs_fill, (int) temp_size, (int) temp_size, (relax_substateT) 0, (symbolS *) 0, temp_repeat, (char *) 0);
bzero (p, (int) temp_size); memset (p, 0, (int) temp_size);
/* /* The magic number BSD_FILL_SIZE_CROCK_4 is from BSD 4.2 VAX
* The magic number BSD_FILL_SIZE_CROCK_4 is from BSD 4.2 VAX flavoured AS. * flavoured AS. The following bizzare behaviour is to be
* The following bizzare behaviour is to be compatible with above. * compatible with above. I guess they tried to take up to 8
* I guess they tried to take up to 8 bytes from a 4-byte expression * bytes from a 4-byte expression and they forgot to sign
* and they forgot to sign extend. Un*x Sux. * extend. Un*x Sux. */
*/
#define BSD_FILL_SIZE_CROCK_4 (4) #define BSD_FILL_SIZE_CROCK_4 (4)
md_number_to_chars (p, temp_fill, temp_size > BSD_FILL_SIZE_CROCK_4 ? BSD_FILL_SIZE_CROCK_4 : (int) temp_size); md_number_to_chars (p, temp_fill,
/* (temp_size > BSD_FILL_SIZE_CROCK_4
* Note: .fill (),0 emits no frag (since we are asked to .fill 0 bytes) ? BSD_FILL_SIZE_CROCK_4
* but emits no error message because it seems a legal thing to do. : (int) temp_size));
* It is a degenerate case of .fill but could be emitted by a compiler. /* Note: .fill (),0 emits no frag (since we are asked to .fill 0 bytes)
*/ * but emits no error message because it seems a legal thing to do.
* It is a degenerate case of .fill but could be emitted by a compiler.
*/
} }
demand_empty_rest_of_line (); demand_empty_rest_of_line ();
} }
#ifdef DONTDEF
void
s_gdbbeg ()
{
register int temp;
temp = get_absolute_expression ();
if (temp < 0)
as_warn ("Block number <0. Ignored.");
else if (flagseen['G'])
gdb_block_beg ((long) temp, frag_now, (long) (obstack_next_free (&frags) - frag_now->fr_literal));
demand_empty_rest_of_line ();
}
void
s_gdbblock ()
{
register int position;
int temp;
if (get_absolute_expression_and_terminator (&temp) != ',')
{
as_bad ("expected comma before position in .gdbblock");
--input_line_pointer;
ignore_rest_of_line ();
return;
}
position = get_absolute_expression ();
if (flagseen['G'])
gdb_block_position ((long) temp, (long) position);
demand_empty_rest_of_line ();
}
void
s_gdbend ()
{
register int temp;
temp = get_absolute_expression ();
if (temp < 0)
as_warn ("Block number <0. Ignored.");
else if (flagseen['G'])
gdb_block_end ((long) temp, frag_now, (long) (obstack_next_free (&frags) - frag_now->fr_literal));
demand_empty_rest_of_line ();
}
void
s_gdbsym ()
{
register char *name, *p;
register char c;
register symbolS *symbolP;
register int temp;
name = input_line_pointer;
c = get_symbol_end ();
p = input_line_pointer;
symbolP = symbol_find_or_make (name);
*p = c;
SKIP_WHITESPACE ();
if (*input_line_pointer != ',')
{
as_bad ("Expected comma after name");
ignore_rest_of_line ();
return;
}
input_line_pointer++;
if ((temp = get_absolute_expression ()) < 0)
{
as_bad ("Bad GDB symbol file offset (%d.) <0! Ignored.", temp);
ignore_rest_of_line ();
return;
}
if (flagseen['G'])
gdb_symbols_fixup (symbolP, (long) temp);
demand_empty_rest_of_line ();
}
void
s_gdbline ()
{
int file_number, lineno;
if (get_absolute_expression_and_terminator (&file_number) != ',')
{
as_bad ("expected comman after filenum in .gdbline");
ignore_rest_of_line ();
return;
}
lineno = get_absolute_expression ();
if (flagseen['G'])
gdb_line (file_number, lineno);
demand_empty_rest_of_line ();
}
void
s_gdblinetab ()
{
int file_number, offset;
if (get_absolute_expression_and_terminator (&file_number) != ',')
{
as_bad ("expected comma after filenum in .gdblinetab");
ignore_rest_of_line ();
return;
}
offset = get_absolute_expression ();
if (flagseen['G'])
gdb_line_tab (file_number, offset);
demand_empty_rest_of_line ();
}
#endif
void void
s_globl () s_globl ()
{ {
@ -1062,10 +931,9 @@ s_globl ()
void void
s_lcomm (needs_align) s_lcomm (needs_align)
int needs_align; /* 1 if this was a ".bss" directive, which may require /* 1 if this was a ".bss" directive, which may require a 3rd argument
* a 3rd argument (alignment). (alignment); 0 if it was an ".lcomm" (2 args only) */
* 0 if it was an ".lcomm" (2 args only) int needs_align;
*/
{ {
register char *name; register char *name;
register char c; register char c;
@ -1130,12 +998,7 @@ s_lcomm (needs_align)
align = 0; align = 0;
as_warn ("Alignment negative. 0 assumed."); as_warn ("Alignment negative. 0 assumed.");
} }
#ifdef MANY_SEGMENTS record_alignment (bss_section, align);
#define SEG_BSS SEG_E2
record_alignment (SEG_E2, align);
#else
record_alignment (SEG_BSS, align);
#endif
} /* if needs align */ } /* if needs align */
*p = 0; *p = 0;
@ -1147,19 +1010,19 @@ s_lcomm (needs_align)
S_GET_OTHER (symbolP) == 0 && S_GET_OTHER (symbolP) == 0 &&
S_GET_DESC (symbolP) == 0 && S_GET_DESC (symbolP) == 0 &&
#endif /* OBJ_AOUT or OBJ_BOUT */ #endif /* OBJ_AOUT or OBJ_BOUT */
(S_GET_SEGMENT (symbolP) == SEG_BSS (S_GET_SEGMENT (symbolP) == bss_section
|| (!S_IS_DEFINED (symbolP) && S_GET_VALUE (symbolP) == 0))) || (!S_IS_DEFINED (symbolP) && S_GET_VALUE (symbolP) == 0)))
{ {
char *p; char *p;
segT current_seg = now_seg; segT current_seg = now_seg;
subsegT current_subseg = now_subseg; subsegT current_subseg = now_subseg;
subseg_new (SEG_BSS, 1); subseg_new (bss_section, 1);
if (align) if (align)
frag_align (align, 0); frag_align (align, 0);
/* detach from old frag */ /* detach from old frag */
if (S_GET_SEGMENT (symbolP) == SEG_BSS) if (S_GET_SEGMENT (symbolP) == bss_section)
symbolP->sy_frag->fr_symbol = NULL; symbolP->sy_frag->fr_symbol = NULL;
symbolP->sy_frag = frag_now; symbolP->sy_frag = frag_now;
@ -1167,13 +1030,12 @@ s_lcomm (needs_align)
temp, (char *)0); temp, (char *)0);
*p = 0; *p = 0;
S_SET_SEGMENT (symbolP, SEG_BSS); S_SET_SEGMENT (symbolP, bss_section);
#ifdef OBJ_COFF #ifdef OBJ_COFF
/* The symbol may already have been created with a preceding /* The symbol may already have been created with a preceding
* ".globl" directive -- be careful not to step on storage ".globl" directive -- be careful not to step on storage class
* class in that case. Otherwise, set it to static. in that case. Otherwise, set it to static. */
*/
if (S_GET_STORAGE_CLASS (symbolP) != C_EXT) if (S_GET_STORAGE_CLASS (symbolP) != C_EXT)
{ {
S_SET_STORAGE_CLASS (symbolP, C_STAT); S_SET_STORAGE_CLASS (symbolP, C_STAT);
@ -1245,19 +1107,18 @@ s_lsym ()
*p = 0; *p = 0;
symbolP = symbol_find_or_make (name); symbolP = symbol_find_or_make (name);
/* FIXME-SOON I pulled a (&& symbolP->sy_other == 0 /* FIXME-SOON I pulled a (&& symbolP->sy_other == 0 &&
&& symbolP->sy_desc == 0) out of this test symbolP->sy_desc == 0) out of this test because coff doesn't have
because coff doesn't have those fields, and I those fields, and I can't see when they'd ever be tripped. I
can't see when they'd ever be tripped. I don't don't think I understand why they were here so I may have
think I understand why they were here so I may introduced a bug. As recently as 1.37 didn't have this test
have introduced a bug. As recently as 1.37 didn't anyway. xoxorich. */
have this test anyway. xoxorich. */
if (S_GET_SEGMENT (symbolP) == SEG_UNKNOWN if (S_GET_SEGMENT (symbolP) == SEG_UNKNOWN
&& S_GET_VALUE (symbolP) == 0) && S_GET_VALUE (symbolP) == 0)
{ {
/* The name might be an undefined .global symbol; be /* The name might be an undefined .global symbol; be sure to
sure to keep the "external" bit. */ keep the "external" bit. */
S_SET_SEGMENT (symbolP, segment); S_SET_SEGMENT (symbolP, segment);
S_SET_VALUE (symbolP, (valueT) (exp.X_add_number)); S_SET_VALUE (symbolP, (valueT) (exp.X_add_number));
} }
@ -1320,10 +1181,10 @@ s_set ()
register symbolS *symbolP; register symbolS *symbolP;
/* /*
* Especial apologies for the random logic: * Especial apologies for the random logic:
* this just grew, and could be parsed much more simply! * this just grew, and could be parsed much more simply!
* Dean in haste. * Dean in haste.
*/ */
name = input_line_pointer; name = input_line_pointer;
delim = get_symbol_end (); delim = get_symbol_end ();
end_name = input_line_pointer; end_name = input_line_pointer;