/* Generate information regarding function declarations and definitions based
on information stored in GCC's tree structure. This code implements the
-aux-info option.
- Copyright (C) 1989, 1991, 1994 Free Software Foundation, Inc.
- Contributed by Ron Guilmette (rfg@netcom.com).
+ Copyright (C) 1989, 1991, 1994, 1995, 1997, 1998,
+ 1999, 2000, 2003, 2004, 2007 Free Software Foundation, Inc.
+ Contributed by Ron Guilmette (rfg@segfault.us.com).
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
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. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
-#include <stdio.h>
#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
#include "flags.h"
#include "tree.h"
#include "c-tree.h"
-
-extern char* xmalloc ();
+#include "toplev.h"
enum formals_style_enum {
ansi,
typedef enum formals_style_enum formals_style;
-static char* data_type;
+static const 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 ();
-void gen_aux_info_record ();
+static char *affix_data_type (const char *) ATTRIBUTE_MALLOC;
+static const char *gen_formal_list_for_type (tree, formals_style);
+static int deserves_ellipsis (tree);
+static const char *gen_formal_list_for_func_def (tree, formals_style);
+static const char *gen_type (const char *, tree, formals_style);
+static const char *gen_decl (tree, int, formals_style);
\f
-/* Take two strings and mash them together into a newly allocated area. */
-
-static char*
-concat (s1, s2)
- char* s1;
- char* s2;
-{
- int size1, size2;
- char* ret_val;
-
- if (!s1)
- s1 = "";
- if (!s2)
- s2 = "";
-
- size1 = strlen (s1);
- size2 = strlen (s2);
- ret_val = xmalloc (size1 + size2 + 1);
- strcpy (ret_val, s1);
- strcpy (&ret_val[size1], s2);
- return ret_val;
-}
-
-/* Take three strings and mash them together into a newly allocated area. */
-
-static char*
-concat3 (s1, s2, s3)
- char* s1;
- char* s2;
- char* s3;
-{
- int size1, size2, size3;
- char* ret_val;
-
- if (!s1)
- s1 = "";
- if (!s2)
- s2 = "";
- if (!s3)
- s3 = "";
-
- size1 = strlen (s1);
- size2 = strlen (s2);
- size3 = strlen (s3);
- ret_val = xmalloc (size1 + size2 + size3 + 1);
- strcpy (ret_val, s1);
- strcpy (&ret_val[size1], s2);
- strcpy (&ret_val[size1+size2], s3);
- return ret_val;
-}
-
/* Given a string representing an entire type or an entire declaration
which only lacks the actual "data-type" specifier (at its left end),
affix the data-type specifier to the left end of the given type
`const char *foo;' and *not* `char const *foo;' so we try to create types
that look as expected. */
-static char*
-affix_data_type (type_or_decl)
- char *type_or_decl;
+static char *
+affix_data_type (const char *param)
{
+ char *const type_or_decl = ASTRDUP (param);
char *p = type_or_decl;
char *qualifiers_then_data_type;
char saved;
for (;;)
{
if (!strncmp (p, "volatile ", 9))
- {
- p += 9;
- continue;
- }
+ {
+ p += 9;
+ continue;
+ }
if (!strncmp (p, "const ", 6))
- {
- p += 6;
- continue;
- }
+ {
+ p += 6;
+ continue;
+ }
break;
}
add a blank after the data-type of course. */
if (p == type_or_decl)
- return concat3 (data_type, " ", type_or_decl);
+ return concat (data_type, " ", type_or_decl, NULL);
saved = *p;
*p = '\0';
- qualifiers_then_data_type = concat (type_or_decl, data_type);
+ qualifiers_then_data_type = concat (type_or_decl, data_type, NULL);
*p = saved;
- return concat3 (qualifiers_then_data_type, " ", p);
+ return reconcat (qualifiers_then_data_type,
+ qualifiers_then_data_type, " ", p, NULL);
}
/* Given a tree node which represents some "function type", generate the
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*
-gen_formal_list_for_type (fntype, style)
- tree fntype;
- formals_style style;
+static const char *
+gen_formal_list_for_type (tree fntype, formals_style style)
{
- char* formal_list = "";
+ const 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;
+ const char *this_type;
if (*formal_list)
- formal_list = concat (formal_list, ", ");
+ formal_list = concat (formal_list, ", ", NULL);
this_type = gen_type ("", TREE_VALUE (formal_type), ansi);
- formal_list =
- (strlen (this_type))
- ? concat (formal_list, affix_data_type (this_type))
- : concat (formal_list, data_type);
+ formal_list
+ = ((strlen (this_type))
+ ? concat (formal_list, affix_data_type (this_type), NULL)
+ : concat (formal_list, data_type, NULL));
formal_type = TREE_CHAIN (formal_type);
}
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.
if (!*formal_list)
{
if (TYPE_ARG_TYPES (fntype))
- /* assert (TREE_VALUE (TYPE_ARG_TYPES (fntype)) == void_type_node); */
- formal_list = "void";
+ /* assert (TREE_VALUE (TYPE_ARG_TYPES (fntype)) == void_type_node); */
+ formal_list = "void";
else
- formal_list = "/* ??? */";
+ formal_list = "/* ??? */";
}
else
{
/* If there were at least some parameters, and if the formals-types-list
- petered out to a NULL (i.e. without being terminated by a
- void_type_node) then we need to tack on an ellipsis. */
+ petered out to a NULL (i.e. without being terminated by a
+ void_type_node) then we need to tack on an ellipsis. */
if (!formal_type)
- formal_list = concat (formal_list, ", ...");
+ formal_list = concat (formal_list, ", ...", NULL);
}
- return concat3 (" (", formal_list, ")");
+ return concat (" (", formal_list, ")", NULL);
}
/* For the generation of an ANSI prototype for a function definition, we have
to look at the formal parameter list of the function's own "type" to
determine if the function's formal parameter list should end with an
- ellipsis. Given a tree node, the following function will return non-zero
+ ellipsis. Given a tree node, the following function will return nonzero
if the "function type" parameter list should end with an ellipsis. */
static int
-deserves_ellipsis (fntype)
- tree fntype;
+deserves_ellipsis (tree fntype)
{
tree formal_type;
This routine returns a string which is the source form for the entire
function formal parameter list. */
-static char*
-gen_formal_list_for_func_def (fndecl, style)
- tree fndecl;
- formals_style style;
+static const char *
+gen_formal_list_for_func_def (tree fndecl, formals_style style)
{
- char* formal_list = "";
+ const char *formal_list = "";
tree formal_decl;
formal_decl = DECL_ARGUMENTS (fndecl);
while (formal_decl)
{
- char *this_formal;
+ const char *this_formal;
if (*formal_list && ((style == ansi) || (style == k_and_r_names)))
- formal_list = concat (formal_list, ", ");
+ formal_list = concat (formal_list, ", ", NULL);
this_formal = gen_decl (formal_decl, 0, style);
if (style == k_and_r_decls)
- formal_list = concat3 (formal_list, this_formal, "; ");
+ formal_list = concat (formal_list, this_formal, "; ", NULL);
else
- formal_list = concat (formal_list, this_formal);
+ formal_list = concat (formal_list, this_formal, NULL);
formal_decl = TREE_CHAIN (formal_decl);
}
if (style == ansi)
{
if (!DECL_ARGUMENTS (fndecl))
- formal_list = concat (formal_list, "void");
+ formal_list = concat (formal_list, "void", NULL);
if (deserves_ellipsis (TREE_TYPE (fndecl)))
- formal_list = concat (formal_list, ", ...");
+ formal_list = concat (formal_list, ", ...", NULL);
}
if ((style == ansi) || (style == k_and_r_names))
- formal_list = concat3 (" (", formal_list, ")");
+ formal_list = concat (" (", formal_list, ")", NULL);
return formal_list;
}
to do at this point is for the initial caller to prepend the "data_type"
string onto the returned "seed". */
-static char*
-gen_type (ret_val, t, style)
- char* ret_val;
- tree t;
- formals_style style;
+static const char *
+gen_type (const char *ret_val, tree t, formals_style style)
{
tree chain_p;
- if (TYPE_NAME (t) && DECL_NAME (TYPE_NAME (t)))
+ /* If there is a typedef name for this type, use it. */
+ if (TYPE_NAME (t) && TREE_CODE (TYPE_NAME (t)) == TYPE_DECL)
data_type = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (t)));
else
{
switch (TREE_CODE (t))
- {
- case POINTER_TYPE:
- if (TYPE_READONLY (t))
- ret_val = concat ("const ", ret_val);
- if (TYPE_VOLATILE (t))
- ret_val = concat ("volatile ", ret_val);
+ {
+ case POINTER_TYPE:
+ if (TYPE_READONLY (t))
+ ret_val = concat ("const ", ret_val, NULL);
+ if (TYPE_VOLATILE (t))
+ ret_val = concat ("volatile ", ret_val, NULL);
- ret_val = concat ("*", ret_val);
+ ret_val = concat ("*", ret_val, NULL);
if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE || TREE_CODE (TREE_TYPE (t)) == FUNCTION_TYPE)
- ret_val = concat3 ("(", ret_val, ")");
+ ret_val = concat ("(", ret_val, ")", NULL);
- ret_val = gen_type (ret_val, TREE_TYPE (t), style);
+ ret_val = gen_type (ret_val, TREE_TYPE (t), style);
- return ret_val;
+ return ret_val;
- case ARRAY_TYPE:
- if (TYPE_SIZE (t) == 0 || TREE_CODE (TYPE_SIZE (t)) != INTEGER_CST)
- ret_val = gen_type (concat (ret_val, "[]"), TREE_TYPE (t), style);
+ case ARRAY_TYPE:
+ if (!COMPLETE_TYPE_P (t) || TREE_CODE (TYPE_SIZE (t)) != INTEGER_CST)
+ ret_val = gen_type (concat (ret_val, "[]", NULL),
+ TREE_TYPE (t), style);
else if (int_size_in_bytes (t) == 0)
- ret_val = gen_type (concat (ret_val, "[0]"), TREE_TYPE (t), style);
+ ret_val = gen_type (concat (ret_val, "[0]", NULL),
+ 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),
+ ret_val = gen_type (concat (ret_val, buff, NULL),
TREE_TYPE (t), style);
}
- break;
+ break;
- case FUNCTION_TYPE:
- ret_val = gen_type (concat (ret_val, gen_formal_list_for_type (t, style)), TREE_TYPE (t), style);
- break;
+ case FUNCTION_TYPE:
+ ret_val = gen_type (concat (ret_val,
+ gen_formal_list_for_type (t, style),
+ NULL),
+ TREE_TYPE (t), style);
+ break;
- case IDENTIFIER_NODE:
- data_type = IDENTIFIER_POINTER (t);
- break;
+ case IDENTIFIER_NODE:
+ data_type = IDENTIFIER_POINTER (t);
+ break;
/* The following three cases are complicated by the fact that a
- user may do something really stupid, like creating a brand new
- "anonymous" type specification in a formal argument list (or as
- part of a function return type specification). For example:
+ user may do something really stupid, like creating a brand new
+ "anonymous" type specification in a formal argument list (or as
+ part of a function return type specification). For example:
int f (enum { red, green, blue } color);
to represent the (anonymous) type. Thus, we have to generate the
whole darn type specification. Yuck! */
- case RECORD_TYPE:
+ case RECORD_TYPE:
if (TYPE_NAME (t))
data_type = IDENTIFIER_POINTER (TYPE_NAME (t));
else
chain_p = TYPE_FIELDS (t);
while (chain_p)
{
- data_type = concat (data_type, gen_decl (chain_p, 0, ansi));
+ data_type = concat (data_type, gen_decl (chain_p, 0, ansi),
+ NULL);
chain_p = TREE_CHAIN (chain_p);
- data_type = concat (data_type, "; ");
+ data_type = concat (data_type, "; ", NULL);
}
- data_type = concat3 ("{ ", data_type, "}");
+ data_type = concat ("{ ", data_type, "}", NULL);
}
- data_type = concat ("struct ", data_type);
+ data_type = concat ("struct ", data_type, NULL);
break;
- case UNION_TYPE:
+ case UNION_TYPE:
if (TYPE_NAME (t))
data_type = IDENTIFIER_POINTER (TYPE_NAME (t));
else
chain_p = TYPE_FIELDS (t);
while (chain_p)
{
- data_type = concat (data_type, gen_decl (chain_p, 0, ansi));
+ data_type = concat (data_type, gen_decl (chain_p, 0, ansi),
+ NULL);
chain_p = TREE_CHAIN (chain_p);
- data_type = concat (data_type, "; ");
+ data_type = concat (data_type, "; ", NULL);
}
- data_type = concat3 ("{ ", data_type, "}");
+ data_type = concat ("{ ", data_type, "}", NULL);
}
- data_type = concat ("union ", data_type);
+ data_type = concat ("union ", data_type, NULL);
break;
- case ENUMERAL_TYPE:
+ case ENUMERAL_TYPE:
if (TYPE_NAME (t))
data_type = IDENTIFIER_POINTER (TYPE_NAME (t));
else
while (chain_p)
{
data_type = concat (data_type,
- IDENTIFIER_POINTER (TREE_PURPOSE (chain_p)));
+ IDENTIFIER_POINTER (TREE_PURPOSE (chain_p)), NULL);
chain_p = TREE_CHAIN (chain_p);
if (chain_p)
- data_type = concat (data_type, ", ");
+ data_type = concat (data_type, ", ", NULL);
}
- data_type = concat3 ("{ ", data_type, " }");
+ data_type = concat ("{ ", data_type, " }", NULL);
}
- data_type = concat ("enum ", data_type);
+ data_type = concat ("enum ", data_type, NULL);
break;
- case TYPE_DECL:
- data_type = IDENTIFIER_POINTER (DECL_NAME (t));
- break;
-
- case INTEGER_TYPE:
- data_type = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (t)));
- /* Normally, `unsigned' is part of the deal. Not so if it comes
- with `const' or `volatile'. */
- if (TREE_UNSIGNED (t) && (TYPE_READONLY (t) || TYPE_VOLATILE (t)))
- data_type = concat ("unsigned ", data_type);
+ case TYPE_DECL:
+ data_type = IDENTIFIER_POINTER (DECL_NAME (t));
break;
- case REAL_TYPE:
- data_type = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (t)));
- break;
+ case INTEGER_TYPE:
+ case FIXED_POINT_TYPE:
+ data_type = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (t)));
+ /* Normally, `unsigned' is part of the deal. Not so if it comes
+ with a type qualifier. */
+ if (TYPE_UNSIGNED (t) && TYPE_QUALS (t))
+ data_type = concat ("unsigned ", data_type, NULL);
+ break;
- case VOID_TYPE:
- data_type = "void";
- break;
+ case REAL_TYPE:
+ data_type = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (t)));
+ break;
+
+ case VOID_TYPE:
+ data_type = "void";
+ break;
- default:
- abort ();
- }
+ case ERROR_MARK:
+ data_type = "[ERROR]";
+ break;
+
+ default:
+ gcc_unreachable ();
+ }
}
if (TYPE_READONLY (t))
- ret_val = concat ("const ", ret_val);
+ ret_val = concat ("const ", ret_val, NULL);
if (TYPE_VOLATILE (t))
- ret_val = concat ("volatile ", ret_val);
+ ret_val = concat ("volatile ", ret_val, NULL);
+ if (TYPE_RESTRICT (t))
+ ret_val = concat ("restrict ", ret_val, NULL);
return ret_val;
}
The given entity may be either a variable or a function.
- If the "is_func_definition" parameter is non-zero, assume that the thing
+ If the "is_func_definition" parameter is nonzero, assume that the thing
we are generating a declaration for is a FUNCTION_DECL node which is
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*
-gen_decl (decl, is_func_definition, style)
- tree decl;
- int is_func_definition;
- formals_style style;
+static const char *
+gen_decl (tree decl, int is_func_definition, formals_style style)
{
- char* ret_val;
+ const char *ret_val;
if (DECL_NAME (decl))
ret_val = IDENTIFIER_POINTER (DECL_NAME (decl));
generate the qualifiers here. */
if (TREE_THIS_VOLATILE (decl))
- ret_val = concat ("volatile ", ret_val);
+ ret_val = concat ("volatile ", ret_val, NULL);
if (TREE_READONLY (decl))
- ret_val = concat ("const ", ret_val);
+ ret_val = concat ("const ", ret_val, NULL);
data_type = "";
if (TREE_CODE (decl) == FUNCTION_DECL && is_func_definition)
{
- ret_val = concat (ret_val, gen_formal_list_for_func_def (decl, ansi));
+ ret_val = concat (ret_val, gen_formal_list_for_func_def (decl, ansi),
+ NULL);
/* Since we have already added in the formals list stuff, here we don't
- add the whole "type" of the function we are considering (which
- would include its parameter-list info), rather, we only add in
- the "type" of the "type" of the function, which is really just
- the return-type of the function (and does not include the parameter
- list info). */
+ add the whole "type" of the function we are considering (which
+ would include its parameter-list info), rather, we only add in
+ the "type" of the "type" of the function, which is really just
+ the return-type of the function (and does not include the parameter
+ list info). */
ret_val = gen_type (ret_val, TREE_TYPE (TREE_TYPE (decl)), style);
}
ret_val = affix_data_type (ret_val);
- if (DECL_REGISTER (decl))
- ret_val = concat ("register ", ret_val);
+ if (TREE_CODE (decl) != FUNCTION_DECL && C_DECL_REGISTER (decl))
+ ret_val = concat ("register ", ret_val, NULL);
if (TREE_PUBLIC (decl))
- ret_val = concat ("extern ", ret_val);
+ ret_val = concat ("extern ", ret_val, NULL);
if (TREE_CODE (decl) == FUNCTION_DECL && !TREE_PUBLIC (decl))
- ret_val = concat ("static ", ret_val);
+ ret_val = concat ("static ", ret_val, NULL);
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
function definition (even the implicit ones). */
void
-gen_aux_info_record (fndecl, is_definition, is_implicit, is_prototyped)
- tree fndecl;
- int is_definition;
- int is_implicit;
- int is_prototyped;
+gen_aux_info_record (tree fndecl, int is_definition, int is_implicit,
+ int is_prototyped)
{
if (flag_gen_aux_info)
{
static int compiled_from_record = 0;
+ expanded_location xloc = expand_location (DECL_SOURCE_LOCATION (fndecl));
/* Each output .X file must have a header line. Write one now if we
have not yet done so. */
- if (! compiled_from_record++)
+ if (!compiled_from_record++)
{
/* The first line tells which directory file names are relative to.
Currently, -aux-info works only for files in the working
/* Write the actual line of auxiliary info. */
fprintf (aux_info_file, "/* %s:%d:%c%c */ %s;",
- DECL_SOURCE_FILE (fndecl),
- DECL_SOURCE_LINE (fndecl),
+ xloc.file, xloc.line,
(is_implicit) ? 'I' : (is_prototyped) ? 'N' : 'O',
(is_definition) ? 'F' : 'C',
gen_decl (fndecl, is_definition, ansi));
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