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* read.c (read_a_source_file): If tc_unrecognized_line is defined,

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call it.
	* config/tc-a29k.h (tc_unrecognized_line): Define.
	* config/tc-a29k.c (a29k_unrecognized_line): New function.
	(md_operand): Handle a29k style local dollar labels.
This commit is contained in:
Ian Lance Taylor 1995-12-11 19:23:10 +00:00
parent 32d067978f
commit 1b10f50d90
3 changed files with 78 additions and 1 deletions
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8
gas/ChangeLog
View File

@ -1,3 +1,11 @@
Mon Dec 11 14:14:08 1995 Ian Lance Taylor <ian@cygnus.com>
* read.c (read_a_source_file): If tc_unrecognized_line is defined,
call it.
* config/tc-a29k.h (tc_unrecognized_line): Define.
* config/tc-a29k.c (a29k_unrecognized_line): New function.
(md_operand): Handle a29k style local dollar labels.
Wed Dec 6 17:52:52 1995 Ian Lance Taylor <ian@cygnus.com>
* config/obj-multi.h: If OBJ_MAYBE_ELF, define OBJ_SYMFIELD_TYPE.

68
gas/config/tc-a29k.c
View File

@ -1081,6 +1081,48 @@ md_show_usage (stream)
{
}
/* This is called when a line is unrecognized. This is used to handle
definitions of a29k style local labels. */
int
a29k_unrecognized_line (c)
int c;
{
int lab;
char *s;
if (c != '$'
|| ! isdigit ((unsigned char) input_line_pointer[0]))
return 0;
s = input_line_pointer;
lab = 0;
while (isdigit ((unsigned char) *s))
{
lab = lab * 10 + *s - '0';
++s;
}
if (*s != ':')
{
/* Not a label definition. */
return 0;
}
if (dollar_label_defined (lab))
{
as_bad ("label \"$%d\" redefined", lab);
return 0;
}
define_dollar_label (lab);
colon (dollar_label_name (lab, 0));
input_line_pointer = s + 1;
return 1;
}
/* Default the values of symbols known that should be "predefined". We
don't bother to predefine them unless you actually use one, since there
are a lot of them. */
@ -1158,6 +1200,31 @@ md_operand (expressionP)
else
expressionP->X_op = O_constant;
}
else if (input_line_pointer[0] == '$'
&& isdigit ((unsigned char) input_line_pointer[1]))
{
long lab;
char *name;
symbolS *sym;
/* This is a local label. */
++input_line_pointer;
lab = (long) get_absolute_expression ();
if (dollar_label_defined (lab))
{
name = dollar_label_name (lab, 0);
sym = symbol_find (name);
}
else
{
name = dollar_label_name (lab, 1);
sym = symbol_find_or_make (name);
}
expressionP->X_op = O_symbol;
expressionP->X_add_symbol = sym;
expressionP->X_add_number = 0;
}
else if (input_line_pointer[0] == '$')
{
char *s;
@ -1193,7 +1260,6 @@ md_operand (expressionP)
}
else
{
/* FIXME: We should handle a29k local labels here. */
return;
}

3
gas/config/tc-a29k.h
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@ -23,6 +23,9 @@ the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307
#define LEX_DOLLAR 1
#define tc_unrecognized_line(c) a29k_unrecognized_line (c)
extern int a29k_unrecognized_line PARAMS ((int));
#define tc_headers_hook(a) ; /* not used */
#define tc_headers_hook(a) ; /* not used */
#define tc_crawl_symbol_chain(a) ; /* not used */