/* macro.c - macro support for gas and gasp
- Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+ Copyright (C) 1994, 95, 96, 97, 1998 Free Software Foundation, Inc.
Written by Steve and Judy Chamberlain of Cygnus Support,
sac@cygnus.com
02111-1307, USA. */
#include "config.h"
+
+/* AIX requires this to be the first thing in the file. */
+#ifdef __GNUC__
+# ifndef alloca
+# ifdef __STDC__
+extern void *alloca ();
+# else
+extern char *alloca ();
+# endif
+# endif
+#else
+# if HAVE_ALLOCA_H
+# include <alloca.h>
+# else
+# ifdef _AIX
+ #pragma alloca
+# else
+# ifndef alloca /* predefined by HP cc +Olibcalls */
+# if !defined (__STDC__) && !defined (__hpux)
+extern char *alloca ();
+# else
+extern void *alloca ();
+# endif /* __STDC__, __hpux */
+# endif /* alloca */
+# endif /* _AIX */
+# endif /* HAVE_ALLOCA_H */
+#endif
+
#include <stdio.h>
#ifdef HAVE_STRING_H
#include <string.h>
#define ISSEP(x) \
((x) == ' ' || (x) == '\t' || (x) == ',' || (x) == '"' || (x) == ';' \
- || (x) == '<' || (x) == '>' || (x) == ')' || (x) == '(')
+ || (x) == ')' || (x) == '(' \
+ || ((macro_alternate || macro_mri) && ((x) == '<' || (x) == '>')))
#define ISBASE(x) \
((x) == 'b' || (x) == 'B' \
while (idx < in->len
&& (in->ptr[idx] == '"'
- || in->ptr[idx] == '<'
+ || (in->ptr[idx] == '<' && (macro_alternate || macro_mri))
|| (in->ptr[idx] == '\'' && macro_alternate)))
{
if (in->ptr[idx] == '<')
{
- if (macro_alternate || macro_mri)
+ int nest = 0;
+ idx++;
+ while ((in->ptr[idx] != '>' || nest)
+ && idx < in->len)
{
- int nest = 0;
- idx++;
- while ((in->ptr[idx] != '>' || nest)
- && idx < in->len)
+ if (in->ptr[idx] == '!')
{
- if (in->ptr[idx] == '!')
- {
- idx++ ;
- sb_add_char (acc, in->ptr[idx++]);
- }
- else
- {
- if (in->ptr[idx] == '>')
- nest--;
- if (in->ptr[idx] == '<')
- nest++;
- sb_add_char (acc, in->ptr[idx++]);
- }
+ idx++ ;
+ sb_add_char (acc, in->ptr[idx++]);
+ }
+ else
+ {
+ if (in->ptr[idx] == '>')
+ nest--;
+ if (in->ptr[idx] == '<')
+ nest++;
+ sb_add_char (acc, in->ptr[idx++]);
}
- idx++;
- }
- else
- {
- int code;
- idx++;
- idx = ((*macro_expr)
- ("character code in string must be absolute expression",
- idx, in, &code));
- sb_add_char (acc, code);
-
-#if 0
- if (in->ptr[idx] != '>')
- ERROR ((stderr, "Missing > for character code.\n"));
-#endif
- idx++;
}
+ idx++;
}
else if (in->ptr[idx] == '"' || in->ptr[idx] == '\'')
{
sb_add_string (out, buf);
}
else if (in->ptr[idx] == '"'
- || in->ptr[idx] == '<'
+ || (in->ptr[idx] == '<' && (macro_alternate || macro_mri))
|| (macro_alternate && in->ptr[idx] == '\''))
{
if (macro_alternate
|| (in->ptr[idx] != ' '
&& in->ptr[idx] != '\t'
&& in->ptr[idx] != ','
- && in->ptr[idx] != '<')))
+ && (in->ptr[idx] != '<'
+ || (! macro_alternate && ! macro_mri)))))
{
if (in->ptr[idx] == '"'
|| in->ptr[idx] == '\'')
}
/* Define a new macro. Returns NULL on success, otherwise returns an
- error message. */
+ error message. If NAMEP is not NULL, *NAMEP is set to the name of
+ the macro which was defined. */
const char *
-define_macro (idx, in, label, get_line)
+define_macro (idx, in, label, get_line, namep)
int idx;
sb *in;
sb *label;
int (*get_line) PARAMS ((sb *));
+ const char **namep;
{
macro_entry *macro;
sb name;
+ const char *namestr;
macro = (macro_entry *) xmalloc (sizeof (macro_entry));
sb_new (¯o->sub);
if (label != NULL && label->len != 0)
{
sb_add_sb (&name, label);
- if (in->ptr[idx] == '(')
+ if (idx < in->len && in->ptr[idx] == '(')
{
/* It's the label: MACRO (formals,...) sort */
idx = do_formals (macro, idx + 1, in);
for (idx = 0; idx < name.len; idx++)
if (isupper (name.ptr[idx]))
name.ptr[idx] = tolower (name.ptr[idx]);
- hash_jam (macro_hash, sb_terminate (&name), (PTR) macro);
+ namestr = sb_terminate (&name);
+ hash_jam (macro_hash, namestr, (PTR) macro);
macro_defined = 1;
+ if (namep != NULL)
+ *namep = namestr;
+
return NULL;
}
sb_add_sb (out, &ptr->def);
}
}
+ else if (kind == '&')
+ {
+ /* Doing this permits people to use & in macro bodies. */
+ sb_add_char (out, '&');
+ }
else if (copyifnotthere)
{
sb_add_sb (out, t);
if (in->ptr[src] == '&')
{
sb_reset (&t);
- if (macro_mri && src + 1 < in->len && in->ptr[src + 1] == '&')
+ if (macro_mri)
{
- src = sub_actual (src + 2, in, &t, formal_hash, '\'', out, 1);
+ if (src + 1 < in->len && in->ptr[src + 1] == '&')
+ src = sub_actual (src + 2, in, &t, formal_hash, '\'', out, 1);
+ else
+ sb_add_char (out, in->ptr[src++]);
}
else
{
+ /* FIXME: Why do we do this? */
src = sub_actual (src + 1, in, &t, formal_hash, '&', out, 0);
}
}
{
/* Sub in the macro invocation number */
- char buffer[6];
+ char buffer[10];
src++;
sprintf (buffer, "%05d", macro_number);
sb_add_string (out, buffer);
src = get_token (src + 2, in, &t);
ptr = (formal_entry *) hash_find (formal_hash, sb_terminate (&t));
if (ptr == NULL)
- return "macro formal argument does not exist";
+ {
+ /* FIXME: We should really return a warning string here,
+ but we can't, because the == might be in the MRI
+ comment field, and, since the nature of the MRI
+ comment field depends upon the exact instruction
+ being used, we don't have enough information here to
+ figure out whether it is or not. Instead, we leave
+ the == in place, which should cause a syntax error if
+ it is not in a comment. */
+ sb_add_char (out, '=');
+ sb_add_char (out, '=');
+ sb_add_sb (out, &t);
+ }
else
{
if (ptr->actual.len)
scan = idx;
while (scan < in->len
&& !ISSEP (in->ptr[scan])
+ && !(macro_mri && in->ptr[scan] == '\'')
&& (!macro_alternate && in->ptr[scan] != '='))
scan++;
if (scan < in->len && !macro_alternate && in->ptr[scan] == '=')
{
is_keyword = 1;
- if (is_positional)
- return "can't mix positional and keyword arguments";
+
+ /* It's OK to go from positional to keyword. */
/* This is a keyword arg, fetch the formal name and
then the actual stuff */
|| *s == '$')
++s;
- copy = (char *) xmalloc (s - line + 1);
+ copy = (char *) alloca (s - line + 1);
memcpy (copy, line, s - line);
copy[s - line] = '\0';
for (cs = copy; *cs != '\0'; cs++)
projects / deliverable / binutils-gdb.git / blobdiff