830 lines
18 KiB
C
830 lines
18 KiB
C
/* Code for handling XREF output from GNU C++.
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Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
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2000, 2002 Free Software Foundation, Inc.
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Contributed by Michael Tiemann (tiemann@cygnus.com)
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "config.h"
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#include "system.h"
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#include "tree.h"
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#include "cp-tree.h"
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#include "input.h"
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#include "toplev.h"
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/* The character(s) used to join a directory specification (obtained with
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getwd or equivalent) with a non-absolute file name. */
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#ifndef FILE_NAME_JOINER
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#define FILE_NAME_JOINER "/"
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#endif
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/* Nonzero if NAME as a file name is absolute. */
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#ifndef FILE_NAME_ABSOLUTE_P
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#define FILE_NAME_ABSOLUTE_P(NAME) ((NAME)[0] == '/')
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#endif
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/* For cross referencing. */
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int flag_gnu_xref;
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/************************************************************************/
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/* */
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/* Common definitions */
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/* */
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/************************************************************************/
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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#define PALLOC(TYP) ((TYP *) xcalloc (1, sizeof (TYP)))
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/* Return a malloc'd copy of STR. */
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#define SALLOC(STR) ((char *) ((STR) == NULL ? NULL : xstrdup (STR)))
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#define SFREE(STR) ((STR) != NULL && (free (STR), 0))
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#define STREQL(S1,S2) (strcmp ((S1), (S2)) == 0)
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#define STRNEQ(S1,S2) (strcmp ((S1), (S2)) != 0)
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#define STRLSS(S1,S2) (strcmp ((S1), (S2)) < 0)
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#define STRLEQ(S1,S2) (strcmp ((S1), (S2)) <= 0)
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#define STRGTR(S1,S2) (strcmp ((S1), (S2)) > 0)
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#define STRGEQ(S1,S2) (strcmp ((S1), (S2)) >= 0)
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/************************************************************************/
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/* */
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/* Type definitions */
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/* */
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/************************************************************************/
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typedef struct _XREF_FILE * XREF_FILE;
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typedef struct _XREF_SCOPE * XREF_SCOPE;
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typedef struct _XREF_FILE
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{
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const char *name;
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const char *outname;
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XREF_FILE next;
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} XREF_FILE_INFO;
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typedef struct _XREF_SCOPE
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{
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int gid;
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int lid;
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XREF_FILE file;
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int start;
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XREF_SCOPE outer;
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} XREF_SCOPE_INFO;
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/************************************************************************/
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/* */
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/* Local storage */
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/* */
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/************************************************************************/
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static char doing_xref = 0;
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static FILE * xref_file = NULL;
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static char xref_name[1024];
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static XREF_FILE all_files = NULL;
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static char * wd_name = NULL;
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static XREF_SCOPE cur_scope = NULL;
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static int scope_ctr = 0;
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static XREF_FILE last_file = NULL;
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static tree last_fndecl = NULL;
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/************************************************************************/
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/* */
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/* Forward definitions */
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/* */
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/************************************************************************/
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static void gen_assign PARAMS ((XREF_FILE, tree));
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static XREF_FILE find_file PARAMS ((const char *));
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static const char * filename PARAMS ((XREF_FILE));
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static const char * fctname PARAMS ((tree));
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static const char * declname PARAMS ((tree));
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static void simplify_type PARAMS ((char *));
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static const char * fixname PARAMS ((const char *, char *));
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static void open_xref_file PARAMS ((const char *));
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static const char * classname PARAMS ((tree));
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/* Start cross referencing. FILE is the name of the file we xref. */
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void
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GNU_xref_begin (file)
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const char *file;
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{
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doing_xref = 1;
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if (file != NULL && STRNEQ (file,"-"))
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{
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open_xref_file(file);
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GNU_xref_file(file);
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}
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}
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/* Finish cross-referencing. ERRCNT is the number of errors
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we encountered. */
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void
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GNU_xref_end (ect)
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int ect;
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{
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XREF_FILE xf;
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if (!doing_xref) return;
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xf = find_file (input_filename);
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if (xf == NULL) return;
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while (cur_scope != NULL)
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GNU_xref_end_scope(cur_scope->gid,0,0,0);
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doing_xref = 0;
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if (xref_file == NULL) return;
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fclose (xref_file);
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xref_file = NULL;
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all_files = NULL;
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if (ect > 0) unlink (xref_name);
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}
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/* Write out xref for file named NAME. */
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void
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GNU_xref_file (name)
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const char *name;
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{
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XREF_FILE xf;
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if (!doing_xref || name == NULL) return;
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if (xref_file == NULL)
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{
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open_xref_file (name);
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if (!doing_xref) return;
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}
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if (all_files == NULL)
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fprintf(xref_file,"SCP * 0 0 0 0 RESET\n");
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xf = find_file (name);
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if (xf != NULL) return;
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xf = PALLOC (XREF_FILE_INFO);
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xf->name = SALLOC (name);
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xf->next = all_files;
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all_files = xf;
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if (wd_name == NULL)
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wd_name = getpwd ();
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if (FILE_NAME_ABSOLUTE_P (name) || ! wd_name)
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xf->outname = xf->name;
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else
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xf->outname = name = concat (wd_name, FILE_NAME_JOINER, name, NULL);
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fprintf (xref_file, "FIL %s %s 0\n", name, wd_name);
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filename (xf);
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fctname (NULL);
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}
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/* Start a scope identified at level ID. */
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void
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GNU_xref_start_scope (id)
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HOST_WIDE_INT id;
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{
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XREF_SCOPE xs;
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XREF_FILE xf;
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if (!doing_xref) return;
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xf = find_file (input_filename);
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xs = PALLOC (XREF_SCOPE_INFO);
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xs->file = xf;
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xs->start = lineno;
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if (xs->start <= 0) xs->start = 1;
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xs->gid = id;
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xs->lid = ++scope_ctr;
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xs->outer = cur_scope;
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cur_scope = xs;
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}
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/* Finish a scope at level ID.
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INID is ???
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PRM is ???
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KEEP is nonzero iff this scope is retained (nonzero if it's
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a compiler-generated invisible scope).
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TRNS is ??? */
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void
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GNU_xref_end_scope (id,inid,prm,keep)
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HOST_WIDE_INT id;
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HOST_WIDE_INT inid;
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int prm,keep;
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{
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XREF_FILE xf;
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XREF_SCOPE xs,lxs,oxs;
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const char *stype;
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if (!doing_xref) return;
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xf = find_file (input_filename);
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if (xf == NULL) return;
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lxs = NULL;
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for (xs = cur_scope; xs != NULL; xs = xs->outer)
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{
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if (xs->gid == id) break;
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lxs = xs;
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}
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if (xs == NULL) return;
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if (inid != 0) {
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for (oxs = cur_scope; oxs != NULL; oxs = oxs->outer) {
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if (oxs->gid == inid) break;
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}
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if (oxs == NULL) return;
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inid = oxs->lid;
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}
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if (prm == 2) stype = "SUE";
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else if (prm != 0) stype = "ARGS";
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else if (keep == 2 || inid != 0) stype = "INTERN";
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else stype = "EXTERN";
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fprintf (xref_file, "SCP %s %d %d %d ",
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filename (xf), xs->start, lineno,xs->lid);
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fprintf (xref_file, HOST_WIDE_INT_PRINT_DEC, inid);
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fprintf (xref_file, " %s\n", stype);
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if (lxs == NULL) cur_scope = xs->outer;
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else lxs->outer = xs->outer;
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free (xs);
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}
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/* Output a reference to NAME in FNDECL. */
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void
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GNU_xref_ref (fndecl,name)
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tree fndecl;
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const char *name;
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{
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XREF_FILE xf;
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if (!doing_xref) return;
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xf = find_file (input_filename);
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if (xf == NULL) return;
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fprintf (xref_file, "REF %s %d %s %s\n",
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filename (xf), lineno, fctname (fndecl), name);
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}
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/* Output a reference to DECL in FNDECL. */
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void
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GNU_xref_decl (fndecl,decl)
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tree fndecl;
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tree decl;
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{
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XREF_FILE xf,xf1;
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const char *cls = 0;
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const char *name;
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char buf[10240];
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int uselin;
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if (!doing_xref) return;
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xf = find_file (input_filename);
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if (xf == NULL) return;
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uselin = FALSE;
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if (TREE_CODE (decl) == TYPE_DECL) cls = "TYPEDEF";
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else if (TREE_CODE (decl) == FIELD_DECL) cls = "FIELD";
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else if (TREE_CODE (decl) == VAR_DECL)
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{
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if (fndecl == NULL && TREE_STATIC(decl)
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&& TREE_READONLY(decl) && DECL_INITIAL(decl) != 0
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&& !TREE_PUBLIC(decl) && !DECL_EXTERNAL(decl)
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&& DECL_MODE(decl) != BLKmode) cls = "CONST";
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else if (DECL_EXTERNAL(decl)) cls = "EXTERN";
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else if (TREE_PUBLIC(decl)) cls = "EXTDEF";
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else if (TREE_STATIC(decl)) cls = "STATIC";
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else if (DECL_REGISTER(decl)) cls = "REGISTER";
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else cls = "AUTO";
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}
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else if (TREE_CODE (decl) == PARM_DECL) cls = "PARAM";
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else if (TREE_CODE (decl) == FIELD_DECL) cls = "FIELD";
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else if (TREE_CODE (decl) == CONST_DECL) cls = "CONST";
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else if (TREE_CODE (decl) == FUNCTION_DECL)
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{
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if (DECL_EXTERNAL (decl)) cls = "EXTERN";
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else if (TREE_PUBLIC (decl)) cls = "EFUNCTION";
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else cls = "SFUNCTION";
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}
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else if (TREE_CODE (decl) == LABEL_DECL) cls = "LABEL";
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else if (TREE_CODE (decl) == UNION_TYPE)
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{
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cls = "UNIONID";
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decl = TYPE_NAME (decl);
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uselin = TRUE;
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}
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else if (TREE_CODE (decl) == RECORD_TYPE)
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{
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if (CLASSTYPE_DECLARED_CLASS (decl)) cls = "CLASSID";
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else cls = "STRUCTID";
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decl = TYPE_NAME (decl);
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uselin = TRUE;
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}
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else if (TREE_CODE (decl) == ENUMERAL_TYPE)
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{
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cls = "ENUMID";
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decl = TYPE_NAME (decl);
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uselin = TRUE;
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}
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else if (TREE_CODE (decl) == TEMPLATE_DECL)
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{
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if (TREE_CODE (DECL_RESULT (decl)) == TYPE_DECL)
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cls = "CLASSTEMP";
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else if (TREE_CODE (DECL_RESULT (decl)) == FUNCTION_DECL)
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cls = "FUNCTEMP";
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else if (TREE_CODE (DECL_RESULT (decl)) == VAR_DECL)
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cls = "VARTEMP";
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else
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abort ();
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uselin = TRUE;
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}
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else cls = "UNKNOWN";
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if (decl == NULL || DECL_NAME (decl) == NULL) return;
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if (uselin && decl->decl.linenum > 0 && decl->decl.filename != NULL)
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{
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xf1 = find_file (decl->decl.filename);
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if (xf1 != NULL)
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{
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lineno = decl->decl.linenum;
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xf = xf1;
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}
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}
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if (DECL_ASSEMBLER_NAME (decl))
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name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl));
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else
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name = IDENTIFIER_POINTER (DECL_NAME (decl));
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strcpy (buf, type_as_string (TREE_TYPE (decl), 0));
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simplify_type (buf);
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fprintf (xref_file, "DCL %s %d %s %d %s %s %s\n",
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filename(xf), lineno, name,
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(cur_scope != NULL ? cur_scope->lid : 0),
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cls, fctname(fndecl), buf);
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if (STREQL (cls, "STRUCTID") || STREQL (cls, "UNIONID"))
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{
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cls = "CLASSID";
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fprintf (xref_file, "DCL %s %d %s %d %s %s %s\n",
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filename(xf), lineno,name,
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(cur_scope != NULL ? cur_scope->lid : 0),
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cls, fctname(fndecl), buf);
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}
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}
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/* Output a reference to a call to NAME in FNDECL. */
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void
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GNU_xref_call (fndecl, name)
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tree fndecl;
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const char *name;
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{
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XREF_FILE xf;
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char buf[1024];
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const char *s;
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if (!doing_xref) return;
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xf = find_file (input_filename);
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if (xf == NULL) return;
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name = fixname (name, buf);
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for (s = name; *s != 0; ++s)
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if (*s == '_' && s[1] == '_') break;
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if (*s != 0) GNU_xref_ref (fndecl, name);
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fprintf (xref_file, "CAL %s %d %s %s\n",
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filename (xf), lineno, name, fctname (fndecl));
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}
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/* Output cross-reference info about FNDECL. If non-NULL,
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ARGS are the arguments for the function (i.e., before the FUNCTION_DECL
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has been fully built). */
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void
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GNU_xref_function (fndecl, args)
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tree fndecl;
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tree args;
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{
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XREF_FILE xf;
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int ct;
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char buf[1024];
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if (!doing_xref) return;
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xf = find_file (input_filename);
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if (xf == NULL) return;
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ct = 0;
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buf[0] = 0;
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if (args == NULL) args = DECL_ARGUMENTS (fndecl);
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GNU_xref_decl (NULL, fndecl);
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for ( ; args != NULL; args = TREE_CHAIN (args))
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{
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GNU_xref_decl (fndecl,args);
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if (ct != 0) strcat (buf,",");
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strcat (buf, declname (args));
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++ct;
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}
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fprintf (xref_file, "PRC %s %d %s %d %d %s\n",
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filename(xf), lineno, declname(fndecl),
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(cur_scope != NULL ? cur_scope->lid : 0),
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ct, buf);
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}
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/* Output cross-reference info about an assignment to NAME. */
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void
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GNU_xref_assign(name)
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tree name;
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{
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XREF_FILE xf;
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if (!doing_xref) return;
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xf = find_file(input_filename);
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if (xf == NULL) return;
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gen_assign(xf, name);
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}
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static void
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gen_assign(xf, name)
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XREF_FILE xf;
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tree name;
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{
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const char *s;
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s = NULL;
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switch (TREE_CODE (name))
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{
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case IDENTIFIER_NODE :
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s = IDENTIFIER_POINTER(name);
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break;
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case VAR_DECL :
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s = declname(name);
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break;
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case COMPONENT_REF :
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gen_assign(xf, TREE_OPERAND(name, 0));
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gen_assign(xf, TREE_OPERAND(name, 1));
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break;
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case INDIRECT_REF :
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case OFFSET_REF :
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case ARRAY_REF :
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case BUFFER_REF :
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gen_assign(xf, TREE_OPERAND(name, 0));
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break;
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case COMPOUND_EXPR :
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gen_assign(xf, TREE_OPERAND(name, 1));
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break;
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default :
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break;
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}
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if (s != NULL)
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fprintf(xref_file, "ASG %s %d %s\n", filename(xf), lineno, s);
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}
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static const char *
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classname (cls)
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tree cls;
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{
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if (cls && TYPE_P (cls))
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cls = TYPE_NAME (cls);
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if (cls && DECL_P (cls))
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cls = DECL_NAME (cls);
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if (cls && TREE_CODE (cls) == IDENTIFIER_NODE)
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return IDENTIFIER_POINTER (cls);
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return "?";
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}
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/* Output cross-reference info about a class hierarchy.
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CLS is the class type of interest. BASE is a baseclass
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for CLS. PUB and VIRT give the access info about
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the class derivation. FRND is nonzero iff BASE is a friend
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of CLS.
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??? Needs to handle nested classes. */
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void
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GNU_xref_hier(cls, base, pub, virt, frnd)
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tree cls;
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tree base;
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int pub;
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int virt;
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int frnd;
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{
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XREF_FILE xf;
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if (!doing_xref) return;
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xf = find_file(input_filename);
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if (xf == NULL) return;
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fprintf(xref_file, "HIE %s %d %s %s %d %d %d\n",
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filename(xf), lineno, classname (cls), classname (base),
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pub, virt, frnd);
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}
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/* Output cross-reference info about class members. CLS
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is the containing type; FLD is the class member. */
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void
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GNU_xref_member(cls, fld)
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tree cls;
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tree fld;
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{
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XREF_FILE xf;
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const char *prot;
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int confg, pure;
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const char *d;
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#ifdef XREF_SHORT_MEMBER_NAMES
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int i;
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#endif
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char buf[1024], bufa[1024];
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if (!doing_xref) return;
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xf = find_file(fld->decl.filename);
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if (xf == NULL) return;
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if (TREE_PRIVATE (fld)) prot = "PRIVATE";
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else if (TREE_PROTECTED(fld)) prot = "PROTECTED";
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else prot = "PUBLIC";
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confg = 0;
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if (TREE_CODE (fld) == FUNCTION_DECL && DECL_CONST_MEMFUNC_P(fld))
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confg = 1;
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else if (TREE_CODE (fld) == CONST_DECL)
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confg = 1;
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pure = 0;
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if (TREE_CODE (fld) == FUNCTION_DECL && DECL_PURE_VIRTUAL_P(fld))
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pure = 1;
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d = IDENTIFIER_POINTER(cls);
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sprintf(buf, "%d%s", (int) strlen(d), d);
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#ifdef XREF_SHORT_MEMBER_NAMES
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i = strlen(buf);
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#endif
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strcpy(bufa, declname(fld));
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#ifdef XREF_SHORT_MEMBER_NAMES
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for (p = &bufa[1]; *p != 0; ++p)
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{
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if (p[0] == '_' && p[1] == '_' && ISDIGIT (p[2])) {
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if (strncmp(&p[2], buf, i) == 0) *p = 0;
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break;
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}
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else if (p[0] == '_' && p[1] == '_' && p[2] == 'C' && ISDIGIT (p[3])) {
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if (strncmp(&p[3], buf, i) == 0) *p = 0;
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break;
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}
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}
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#endif
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fprintf(xref_file, "MEM %s %d %s %s %s %d %d %d %d %d %d %d\n",
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filename(xf), fld->decl.linenum, d, bufa, prot,
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(TREE_CODE (fld) == FUNCTION_DECL ? 0 : 1),
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(DECL_INLINE (fld) ? 1 : 0),
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(DECL_LANG_SPECIFIC(fld) && DECL_FRIEND_P(fld) ? 1 : 0),
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(DECL_VINDEX(fld) ? 1 : 0),
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(TREE_STATIC(fld) ? 1 : 0),
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pure, confg);
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}
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/* Find file entry given name. */
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static XREF_FILE
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find_file(name)
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const char *name;
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{
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XREF_FILE xf;
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for (xf = all_files; xf != NULL; xf = xf->next) {
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if (STREQL(name, xf->name)) break;
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}
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return xf;
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}
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/* Return filename for output purposes. */
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static const char *
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filename(xf)
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XREF_FILE xf;
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{
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if (xf == NULL) {
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last_file = NULL;
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return "*";
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}
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if (last_file == xf) return "*";
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last_file = xf;
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return xf->outname;
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}
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/* Return function name for output purposes. */
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static const char *
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fctname(fndecl)
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tree fndecl;
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{
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static char fctbuf[1024];
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const char *s;
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if (fndecl == NULL && last_fndecl == NULL) return "*";
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if (fndecl == NULL)
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{
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last_fndecl = NULL;
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return "*TOP*";
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}
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if (fndecl == last_fndecl) return "*";
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last_fndecl = fndecl;
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s = declname(fndecl);
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s = fixname(s, fctbuf);
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return s;
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}
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/* Return decl name for output purposes. */
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|
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static const char *
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declname(dcl)
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tree dcl;
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{
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if (DECL_NAME (dcl) == NULL) return "?";
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|
|
if (DECL_ASSEMBLER_NAME (dcl))
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return IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (dcl));
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else
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return IDENTIFIER_POINTER (DECL_NAME (dcl));
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}
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|
|
/* Simplify a type string by removing unneeded parenthesis. */
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|
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static void
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|
simplify_type(typ)
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char *typ;
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|
{
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|
char *s;
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int lvl, i;
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i = strlen(typ);
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while (i > 0 && ISSPACE((unsigned char) typ[i-1])) typ[--i] = 0;
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if (i > 7 && STREQL(&typ[i-5], "const"))
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{
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typ[i-5] = 0;
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i -= 5;
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}
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if (typ[i-1] != ')') return;
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s = &typ[i-2];
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lvl = 1;
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while (*s != 0) {
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|
if (*s == ')') ++lvl;
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else if (*s == '(')
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{
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--lvl;
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|
if (lvl == 0)
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|
{
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|
s[1] = ')';
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|
s[2] = 0;
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|
break;
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|
}
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|
}
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|
--s;
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|
}
|
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|
|
if (*s != 0 && s[-1] == ')')
|
|
{
|
|
--s;
|
|
--s;
|
|
if (*s == '(') s[2] = 0;
|
|
else if (*s == ':') {
|
|
while (*s != '(') --s;
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|
s[1] = ')';
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|
s[2] = 0;
|
|
}
|
|
}
|
|
}
|
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|
|
/* Fixup a function name (take care of embedded spaces). */
|
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|
|
static const char *
|
|
fixname(nam, buf)
|
|
const char *nam;
|
|
char *buf;
|
|
{
|
|
const char *s;
|
|
char *t;
|
|
int fg;
|
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|
|
s = nam;
|
|
t = buf;
|
|
fg = 0;
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|
|
|
while (*s != 0)
|
|
{
|
|
if (*s == ' ')
|
|
{
|
|
*t++ = '\36';
|
|
++fg;
|
|
}
|
|
else *t++ = *s;
|
|
++s;
|
|
}
|
|
*t = 0;
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|
|
if (fg == 0) return nam;
|
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|
|
return buf;
|
|
}
|
|
|
|
/* Open file for xreffing. */
|
|
|
|
static void
|
|
open_xref_file(file)
|
|
const char *file;
|
|
{
|
|
const char *s;
|
|
char *t;
|
|
|
|
#ifdef XREF_FILE_NAME
|
|
XREF_FILE_NAME (xref_name, file);
|
|
#else
|
|
s = strrchr (file, '/');
|
|
if (s == NULL)
|
|
sprintf (xref_name, ".%s.gxref", file);
|
|
else
|
|
{
|
|
++s;
|
|
strcpy (xref_name, file);
|
|
t = strrchr (xref_name, '/');
|
|
++t;
|
|
*t++ = '.';
|
|
strcpy (t, s);
|
|
strcat (t, ".gxref");
|
|
}
|
|
#endif /* no XREF_FILE_NAME */
|
|
|
|
xref_file = fopen(xref_name, "w");
|
|
|
|
if (xref_file == NULL)
|
|
{
|
|
error("can't create cross-reference file `%s'", xref_name);
|
|
doing_xref = 0;
|
|
}
|
|
}
|