/* Generate information regarding function declarations and definitions based
on information stored in GCC's tree structure. This code implements the
- -fgen-aux-info option.
-
- This code was written by Ron Guilmette (rfg@mcc.com).
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ -aux-info option.
+ Copyright (C) 1989, 1991, 1994, 1995 Free Software Foundation, Inc.
+ Contributed by Ron Guilmette (rfg@segfault.us.com).
This file is part of GNU CC.
You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
#include <stdio.h>
-#include <sys/param.h>
-#include <errno.h>
#include "config.h"
#include "flags.h"
#include "tree.h"
#include "c-tree.h"
-#ifndef errno
-extern int errno;
-#endif
-
-extern char* xmalloc ();
+extern char *xmalloc ();
enum formals_style_enum {
ansi,
typedef enum formals_style_enum formals_style;
-static char* data_type;
+static char *data_type;
-static char * concat ();
-static char * concat3 ();
-static char * gen_formal_list_for_type ();
-static int deserves_ellipsis ();
-static char * gen_formal_list_for_func_def ();
-static char * gen_type ();
-static char * gen_decl ();
+static char *concat ();
+static char *concat3 ();
+static char *gen_formal_list_for_type ();
+static int deserves_ellipsis ();
+static char *gen_formal_list_for_func_def ();
+static char *gen_type ();
+static char *gen_decl ();
void gen_aux_info_record ();
-
-/* Virtually every UN*X system now in common use (except for pre-4.3-tahoe
- BSD systems) now provides getcwd as called for by POSIX. Allow for
- the few exceptions to the general rule here. */
-
-#if !(defined (USG) || defined (VMS))
-extern char *getwd ();
-#define getcwd(buf,len) getwd(buf)
-#define GUESSPATHLEN (MAXPATHLEN + 1)
-#else /* (defined (USG) || defined (VMS)) */
-extern char *getcwd ();
-/* We actually use this as a starting point, not a limit. */
-#define GUESSPATHLEN 100
-#endif /* (defined (USG) || defined (VMS)) */
\f
/* Take two strings and mash them together into a newly allocated area. */
-static char*
+static char *
concat (s1, s2)
- char* s1;
- char* s2;
+ char *s1;
+ char *s2;
{
int size1, size2;
- char* ret_val;
+ char *ret_val;
if (!s1)
s1 = "";
/* Take three strings and mash them together into a newly allocated area. */
-static char*
+static char *
concat3 (s1, s2, s3)
- char* s1;
- char* s2;
- char* s3;
+ char *s1;
+ char *s2;
+ char *s3;
{
int size1, size2, size3;
- char* ret_val;
+ char *ret_val;
if (!s1)
s1 = "";
`const char *foo;' and *not* `char const *foo;' so we try to create types
that look as expected. */
-static char*
+static char *
affix_data_type (type_or_decl)
char *type_or_decl;
{
for (;;)
{
- if (!strncmp (p, "volatile", 8))
+ if (!strncmp (p, "volatile ", 9))
{
p += 9;
continue;
}
- if (!strncmp (p, "const", 5))
+ if (!strncmp (p, "const ", 6))
{
p += 6;
continue;
this function type. Return the whole formal parameter list (including
a pair of surrounding parens) as a string. Note that if the style
we are currently aiming for is non-ansi, then we just return a pair
- of empty parens here. */
+ of empty parens here. */
-static char*
+static char *
gen_formal_list_for_type (fntype, style)
tree fntype;
formals_style style;
{
- char* formal_list = "";
+ char *formal_list = "";
tree formal_type;
if (style != ansi)
formal_type = TYPE_ARG_TYPES (fntype);
while (formal_type && TREE_VALUE (formal_type) != void_type_node)
{
- char* this_type;
+ char *this_type;
if (*formal_list)
formal_list = concat (formal_list, ", ");
to output the "void" verbatim, and that what we do. In the former case,
we do our best to give protoize something nice to insert.
- This "something nice" should be something that is still legal (when
+ This "something nice" should be something that is still valid (when
re-compiled) but something that can clearly indicate to the user that
more typing information (for the parameter list) should be added (by
hand) at some convenient moment.
This routine returns a string which is the source form for the entire
function formal parameter list. */
-static char*
+static char *
gen_formal_list_for_func_def (fndecl, style)
tree fndecl;
formals_style style;
{
- char* formal_list = "";
+ char *formal_list = "";
tree formal_decl;
formal_decl = DECL_ARGUMENTS (fndecl);
to do at this point is for the initial caller to prepend the "data_type"
string onto the returned "seed". */
-static char*
+static char *
gen_type (ret_val, t, style)
- char* ret_val;
+ char *ret_val;
tree t;
formals_style style;
{
return ret_val;
case ARRAY_TYPE:
- ret_val = gen_type (concat (ret_val, "[]"), TREE_TYPE (t), style);
+ if (TYPE_SIZE (t) == 0 || TREE_CODE (TYPE_SIZE (t)) != INTEGER_CST)
+ ret_val = gen_type (concat (ret_val, "[]"), TREE_TYPE (t), style);
+ else if (int_size_in_bytes (t) == 0)
+ ret_val = gen_type (concat (ret_val, "[0]"), TREE_TYPE (t), style);
+ else
+ {
+ int size = (int_size_in_bytes (t) / int_size_in_bytes (TREE_TYPE (t)));
+ char buff[10];
+ sprintf (buff, "[%d]", size);
+ ret_val = gen_type (concat (ret_val, buff),
+ TREE_TYPE (t), style);
+ }
break;
case FUNCTION_TYPE:
data_type = "void";
break;
+ case ERROR_MARK:
+ data_type = "[ERROR]";
+ break;
+
default:
abort ();
}
associated with a function definition. In this case, we can assume that
an attached list of DECL nodes for function formal arguments is present. */
-static char*
+static char *
gen_decl (decl, is_func_definition, style)
tree decl;
int is_func_definition;
formals_style style;
{
- char* ret_val;
- char* outer_modifier = "";
+ char *ret_val;
if (DECL_NAME (decl))
ret_val = IDENTIFIER_POINTER (DECL_NAME (decl));
ret_val = affix_data_type (ret_val);
- if (TREE_REGDECL (decl))
+ if (TREE_CODE (decl) != FUNCTION_DECL && DECL_REGISTER (decl))
ret_val = concat ("register ", ret_val);
if (TREE_PUBLIC (decl))
ret_val = concat ("extern ", ret_val);
return ret_val;
}
-extern FILE* aux_info_file;
+extern FILE *aux_info_file;
/* Generate and write a new line of info to the aux-info (.X) file. This
routine is called once for each function declaration, and once for each
if (! compiled_from_record++)
{
- int size;
- char *wd;
- char *value;
-
- /* Read the working directory, avoiding arbitrary limit. */
- size = GUESSPATHLEN;
- while (1)
- {
- wd = (char *) xmalloc (size);
- value = getcwd (wd, size);
- if (value != 0 || errno != ERANGE)
- break;
- free (wd);
- size *= 2;
- }
-
- if (value != 0)
- fprintf (aux_info_file, "/* compiled from: %s */\n", wd);
+ /* The first line tells which directory file names are relative to.
+ Currently, -aux-info works only for files in the working
+ directory, so just use a `.' as a placeholder for now. */
+ fprintf (aux_info_file, "/* compiled from: . */\n");
}
/* Write the actual line of auxiliary info. */
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