/* Code for handling XREF output from GNU C++. Copyright (C) 1992, 1993, 1994, 1995, 1997 Free Software Foundation, Inc. Contributed by Michael Tiemann (tiemann@cygnus.com) This file is part of GNU CC. 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. 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. 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "config.h" #include "tree.h" #include #include "cp-tree.h" #include "input.h" #include #ifdef HAVE_STDLIB_H #include #endif #ifdef HAVE_UNISTD_H #include #endif extern char *getpwd PROTO((void)); #ifdef HAVE_STRING_H #include #endif #ifdef NEED_DECLARATION_RINDEX extern char *rindex (); #endif /* The character(s) used to join a directory specification (obtained with getwd or equivalent) with a non-absolute file name. */ #ifndef FILE_NAME_JOINER #define FILE_NAME_JOINER "/" #endif /* Nonzero if NAME as a file name is absolute. */ #ifndef FILE_NAME_ABSOLUTE_P #define FILE_NAME_ABSOLUTE_P(NAME) (NAME[0] == '/') #endif /* For cross referencing. */ int flag_gnu_xref; /************************************************************************/ /* */ /* Common definitions */ /* */ /************************************************************************/ #ifndef TRUE #define TRUE 1 #endif #ifndef FALSE #define FALSE 0 #endif #define PALLOC(typ) ((typ *) calloc(1,sizeof(typ))) /* Return a malloc'd copy of STR. */ #define SALLOC(str) \ ((char *) ((str) == NULL ? NULL \ : (char *) strcpy ((char *) malloc (strlen ((str)) + 1), (str)))) #define SFREE(str) (str != NULL && (free(str),0)) #define STREQL(s1,s2) (strcmp((s1),(s2)) == 0) #define STRNEQ(s1,s2) (strcmp((s1),(s2)) != 0) #define STRLSS(s1,s2) (strcmp((s1),(s2)) < 0) #define STRLEQ(s1,s2) (strcmp((s1),(s2)) <= 0) #define STRGTR(s1,s2) (strcmp((s1),(s2)) > 0) #define STRGEQ(s1,s2) (strcmp((s1),(s2)) >= 0) /************************************************************************/ /* */ /* Type definitions */ /* */ /************************************************************************/ typedef struct _XREF_FILE * XREF_FILE; typedef struct _XREF_SCOPE * XREF_SCOPE; typedef struct _XREF_FILE { char *name; char *outname; XREF_FILE next; } XREF_FILE_INFO; typedef struct _XREF_SCOPE { int gid; int lid; XREF_FILE file; int start; XREF_SCOPE outer; } XREF_SCOPE_INFO; /************************************************************************/ /* */ /* Local storage */ /* */ /************************************************************************/ static char doing_xref = 0; static FILE * xref_file = NULL; static char xref_name[1024]; static XREF_FILE all_files = NULL; static char * wd_name = NULL; static XREF_SCOPE cur_scope = NULL; static int scope_ctr = 0; static XREF_FILE last_file = NULL; static tree last_fndecl = NULL; /************************************************************************/ /* */ /* Forward definitions */ /* */ /************************************************************************/ static void gen_assign PROTO((XREF_FILE, tree)); static XREF_FILE find_file PROTO((char *)); static char * filename PROTO((XREF_FILE)); static char * fctname PROTO((tree)); static char * declname PROTO((tree)); static void simplify_type PROTO((char *)); static char * fixname PROTO((char *, char *)); static void open_xref_file PROTO((char *)); /* Start cross referencing. FILE is the name of the file we xref. */ void GNU_xref_begin (file) char *file; { doing_xref = 1; if (file != NULL && STRNEQ (file,"-")) { open_xref_file(file); GNU_xref_file(file); } } /* Finish cross-referencing. ERRCNT is the number of errors we encountered. */ void GNU_xref_end (ect) int ect; { XREF_FILE xf; if (!doing_xref) return; xf = find_file (input_filename); if (xf == NULL) return; while (cur_scope != NULL) GNU_xref_end_scope(cur_scope->gid,0,0,0); doing_xref = 0; if (xref_file == NULL) return; fclose (xref_file); xref_file = NULL; all_files = NULL; if (ect > 0) unlink (xref_name); } /* Write out xref for file named NAME. */ void GNU_xref_file (name) char *name; { XREF_FILE xf; if (!doing_xref || name == NULL) return; if (xref_file == NULL) { open_xref_file (name); if (!doing_xref) return; } if (all_files == NULL) fprintf(xref_file,"SCP * 0 0 0 0 RESET\n"); xf = find_file (name); if (xf != NULL) return; xf = PALLOC (XREF_FILE_INFO); xf->name = SALLOC (name); xf->next = all_files; all_files = xf; if (wd_name == NULL) wd_name = getpwd (); if (FILE_NAME_ABSOLUTE_P (name) || ! wd_name) xf->outname = xf->name; else { char *nmbuf = (char *) malloc (strlen (wd_name) + strlen (FILE_NAME_JOINER) + strlen (name) + 1); sprintf (nmbuf, "%s%s%s", wd_name, FILE_NAME_JOINER, name); name = nmbuf; xf->outname = nmbuf; } fprintf (xref_file, "FIL %s %s 0\n", name, wd_name); filename (xf); fctname (NULL); } /* Start a scope identified at level ID. */ void GNU_xref_start_scope (id) HOST_WIDE_INT id; { XREF_SCOPE xs; XREF_FILE xf; if (!doing_xref) return; xf = find_file (input_filename); xs = PALLOC (XREF_SCOPE_INFO); xs->file = xf; xs->start = lineno; if (xs->start <= 0) xs->start = 1; xs->gid = id; xs->lid = ++scope_ctr; xs->outer = cur_scope; cur_scope = xs; } /* Finish a scope at level ID. INID is ??? PRM is ??? KEEP is nonzero iff this scope is retained (nonzero if it's a compiler-generated invisible scope). TRNS is ??? */ void GNU_xref_end_scope (id,inid,prm,keep) HOST_WIDE_INT id; HOST_WIDE_INT inid; int prm,keep; { XREF_FILE xf; XREF_SCOPE xs,lxs,oxs; char *stype; if (!doing_xref) return; xf = find_file (input_filename); if (xf == NULL) return; lxs = NULL; for (xs = cur_scope; xs != NULL; xs = xs->outer) { if (xs->gid == id) break; lxs = xs; } if (xs == NULL) return; if (inid != 0) { for (oxs = cur_scope; oxs != NULL; oxs = oxs->outer) { if (oxs->gid == inid) break; } if (oxs == NULL) return; inid = oxs->lid; } if (prm == 2) stype = "SUE"; else if (prm != 0) stype = "ARGS"; else if (keep == 2 || inid != 0) stype = "INTERN"; else stype = "EXTERN"; fprintf (xref_file,"SCP %s %d %d %d %d %s\n", filename (xf), xs->start, lineno,xs->lid, inid, stype); if (lxs == NULL) cur_scope = xs->outer; else lxs->outer = xs->outer; free (xs); } /* Output a reference to NAME in FNDECL. */ void GNU_xref_ref (fndecl,name) tree fndecl; char *name; { XREF_FILE xf; if (!doing_xref) return; xf = find_file (input_filename); if (xf == NULL) return; fprintf (xref_file, "REF %s %d %s %s\n", filename (xf), lineno, fctname (fndecl), name); } /* Output a reference to DECL in FNDECL. */ void GNU_xref_decl (fndecl,decl) tree fndecl; tree decl; { XREF_FILE xf,xf1; char *cls; char *name; char buf[10240]; int uselin; if (!doing_xref) return; xf = find_file (input_filename); if (xf == NULL) return; uselin = FALSE; if (TREE_CODE (decl) == TYPE_DECL) cls = "TYPEDEF"; else if (TREE_CODE (decl) == FIELD_DECL) cls = "FIELD"; else if (TREE_CODE (decl) == VAR_DECL) { if (fndecl == NULL && TREE_STATIC(decl) && TREE_READONLY(decl) && DECL_INITIAL(decl) != 0 && !TREE_PUBLIC(decl) && !DECL_EXTERNAL(decl) && DECL_MODE(decl) != BLKmode) cls = "CONST"; else if (DECL_EXTERNAL(decl)) cls = "EXTERN"; else if (TREE_PUBLIC(decl)) cls = "EXTDEF"; else if (TREE_STATIC(decl)) cls = "STATIC"; else if (DECL_REGISTER(decl)) cls = "REGISTER"; else cls = "AUTO"; } else if (TREE_CODE (decl) == PARM_DECL) cls = "PARAM"; else if (TREE_CODE (decl) == FIELD_DECL) cls = "FIELD"; else if (TREE_CODE (decl) == CONST_DECL) cls = "CONST"; else if (TREE_CODE (decl) == FUNCTION_DECL) { if (DECL_EXTERNAL (decl)) cls = "EXTERN"; else if (TREE_PUBLIC (decl)) cls = "EFUNCTION"; else cls = "SFUNCTION"; } else if (TREE_CODE (decl) == LABEL_DECL) cls = "LABEL"; else if (TREE_CODE (decl) == UNION_TYPE) { cls = "UNIONID"; decl = TYPE_NAME (decl); uselin = TRUE; } else if (TREE_CODE (decl) == RECORD_TYPE) { if (CLASSTYPE_DECLARED_CLASS (decl)) cls = "CLASSID"; else if (IS_SIGNATURE (decl)) cls = "SIGNATUREID"; else cls = "STRUCTID"; decl = TYPE_NAME (decl); uselin = TRUE; } else if (TREE_CODE (decl) == ENUMERAL_TYPE) { cls = "ENUMID"; decl = TYPE_NAME (decl); uselin = TRUE; } else if (TREE_CODE (decl) == TEMPLATE_DECL) { if (TREE_CODE (DECL_RESULT (decl)) == TYPE_DECL) cls = "CLASSTEMP"; else if (TREE_CODE (DECL_RESULT (decl)) == FUNCTION_DECL) cls = "FUNCTEMP"; else if (TREE_CODE (DECL_RESULT (decl)) == VAR_DECL) cls = "VARTEMP"; else my_friendly_abort (358); uselin = TRUE; } else cls = "UNKNOWN"; if (decl == NULL || DECL_NAME (decl) == NULL) return; if (uselin && decl->decl.linenum > 0 && decl->decl.filename != NULL) { xf1 = find_file (decl->decl.filename); if (xf1 != NULL) { lineno = decl->decl.linenum; xf = xf1; } } if (DECL_ASSEMBLER_NAME (decl)) name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)); else name = IDENTIFIER_POINTER (DECL_NAME (decl)); strcpy (buf, type_as_string (TREE_TYPE (decl), 0)); simplify_type (buf); fprintf (xref_file, "DCL %s %d %s %d %s %s %s\n", filename(xf), lineno, name, (cur_scope != NULL ? cur_scope->lid : 0), cls, fctname(fndecl), buf); if (STREQL (cls, "STRUCTID") || STREQL (cls, "UNIONID") || STREQL (cls, "SIGNATUREID")) { cls = "CLASSID"; fprintf (xref_file, "DCL %s %d %s %d %s %s %s\n", filename(xf), lineno,name, (cur_scope != NULL ? cur_scope->lid : 0), cls, fctname(fndecl), buf); } } /* Output a reference to a call to NAME in FNDECL. */ void GNU_xref_call (fndecl, name) tree fndecl; char *name; { XREF_FILE xf; char buf[1024]; char *s; if (!doing_xref) return; xf = find_file (input_filename); if (xf == NULL) return; name = fixname (name, buf); for (s = name; *s != 0; ++s) if (*s == '_' && s[1] == '_') break; if (*s != 0) GNU_xref_ref (fndecl, name); fprintf (xref_file, "CAL %s %d %s %s\n", filename (xf), lineno, name, fctname (fndecl)); } /* Output cross-reference info about FNDECL. If non-NULL, ARGS are the arguments for the function (i.e., before the FUNCTION_DECL has been fully built). */ void GNU_xref_function (fndecl, args) tree fndecl; tree args; { XREF_FILE xf; int ct; char buf[1024]; if (!doing_xref) return; xf = find_file (input_filename); if (xf == NULL) return; ct = 0; buf[0] = 0; if (args == NULL) args = DECL_ARGUMENTS (fndecl); GNU_xref_decl (NULL, fndecl); for ( ; args != NULL; args = TREE_CHAIN (args)) { GNU_xref_decl (fndecl,args); if (ct != 0) strcat (buf,","); strcat (buf, declname (args)); ++ct; } fprintf (xref_file, "PRC %s %d %s %d %d %s\n", filename(xf), lineno, declname(fndecl), (cur_scope != NULL ? cur_scope->lid : 0), ct, buf); } /* Output cross-reference info about an assignment to NAME. */ void GNU_xref_assign(name) tree name; { XREF_FILE xf; if (!doing_xref) return; xf = find_file(input_filename); if (xf == NULL) return; gen_assign(xf, name); } static void gen_assign(xf, name) XREF_FILE xf; tree name; { char *s; s = NULL; switch (TREE_CODE (name)) { case IDENTIFIER_NODE : s = IDENTIFIER_POINTER(name); break; case VAR_DECL : s = declname(name); break; case COMPONENT_REF : gen_assign(xf, TREE_OPERAND(name, 0)); gen_assign(xf, TREE_OPERAND(name, 1)); break; case INDIRECT_REF : case OFFSET_REF : case ARRAY_REF : case BUFFER_REF : gen_assign(xf, TREE_OPERAND(name, 0)); break; case COMPOUND_EXPR : gen_assign(xf, TREE_OPERAND(name, 1)); break; default : break; } if (s != NULL) fprintf(xref_file, "ASG %s %d %s\n", filename(xf), lineno, s); } /* Output cross-reference info about a class hierarchy. CLS is the class type of interest. BASE is a baseclass for CLS. PUB and VIRT give the access info about the class derivation. FRND is nonzero iff BASE is a friend of CLS. ??? Needs to handle nested classes. */ void GNU_xref_hier(cls, base, pub, virt, frnd) char *cls; char *base; int pub; int virt; int frnd; { XREF_FILE xf; if (!doing_xref) return; xf = find_file(input_filename); if (xf == NULL) return; fprintf(xref_file, "HIE %s %d %s %s %d %d %d\n", filename(xf), lineno, cls, base, pub, virt, frnd); } /* Output cross-reference info about class members. CLS is the containing type; FLD is the class member. */ void GNU_xref_member(cls, fld) tree cls; tree fld; { XREF_FILE xf; char *prot; int confg, pure; char *d; #ifdef XREF_SHORT_MEMBER_NAMES int i; #endif char buf[1024], bufa[1024]; if (!doing_xref) return; xf = find_file(fld->decl.filename); if (xf == NULL) return; if (TREE_PRIVATE (fld)) prot = "PRIVATE"; else if (TREE_PROTECTED(fld)) prot = "PROTECTED"; else prot = "PUBLIC"; confg = 0; if (TREE_CODE (fld) == FUNCTION_DECL && DECL_CONST_MEMFUNC_P(fld)) confg = 1; else if (TREE_CODE (fld) == CONST_DECL) confg = 1; pure = 0; if (TREE_CODE (fld) == FUNCTION_DECL && DECL_ABSTRACT_VIRTUAL_P(fld)) pure = 1; d = IDENTIFIER_POINTER(cls); sprintf(buf, "%d%s", strlen(d), d); #ifdef XREF_SHORT_MEMBER_NAMES i = strlen(buf); #endif strcpy(bufa, declname(fld)); #ifdef XREF_SHORT_MEMBER_NAMES for (p = &bufa[1]; *p != 0; ++p) { if (p[0] == '_' && p[1] == '_' && p[2] >= '0' && p[2] <= '9') { if (strncmp(&p[2], buf, i) == 0) *p = 0; break; } else if (p[0] == '_' && p[1] == '_' && p[2] == 'C' && p[3] >= '0' && p[3] <= '9') { if (strncmp(&p[3], buf, i) == 0) *p = 0; break; } } #endif fprintf(xref_file, "MEM %s %d %s %s %s %d %d %d %d %d %d %d\n", filename(xf), fld->decl.linenum, d, bufa, prot, (TREE_CODE (fld) == FUNCTION_DECL ? 0 : 1), (DECL_INLINE (fld) ? 1 : 0), (DECL_LANG_SPECIFIC(fld) && DECL_FRIEND_P(fld) ? 1 : 0), (DECL_VINDEX(fld) ? 1 : 0), (TREE_STATIC(fld) ? 1 : 0), pure, confg); } /* Find file entry given name. */ static XREF_FILE find_file(name) char *name; { XREF_FILE xf; for (xf = all_files; xf != NULL; xf = xf->next) { if (STREQL(name, xf->name)) break; } return xf; } /* Return filename for output purposes. */ static char * filename(xf) XREF_FILE xf; { if (xf == NULL) { last_file = NULL; return "*"; } if (last_file == xf) return "*"; last_file = xf; return xf->outname; } /* Return function name for output purposes. */ static char * fctname(fndecl) tree fndecl; { static char fctbuf[1024]; char *s; if (fndecl == NULL && last_fndecl == NULL) return "*"; if (fndecl == NULL) { last_fndecl = NULL; return "*TOP*"; } if (fndecl == last_fndecl) return "*"; last_fndecl = fndecl; s = declname(fndecl); s = fixname(s, fctbuf); return s; } /* Return decl name for output purposes. */ static char * declname(dcl) tree dcl; { if (DECL_NAME (dcl) == NULL) return "?"; if (DECL_ASSEMBLER_NAME (dcl)) return IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (dcl)); else return IDENTIFIER_POINTER (DECL_NAME (dcl)); } /* Simplify a type string by removing unneeded parenthesis. */ static void simplify_type(typ) char *typ; { char *s; int lvl, i; i = strlen(typ); while (i > 0 && isspace(typ[i-1])) typ[--i] = 0; if (i > 7 && STREQL(&typ[i-5], "const")) { typ[i-5] = 0; i -= 5; } if (typ[i-1] != ')') return; s = &typ[i-2]; lvl = 1; while (*s != 0) { if (*s == ')') ++lvl; else if (*s == '(') { --lvl; if (lvl == 0) { s[1] = ')'; s[2] = 0; break; } } --s; } if (*s != 0 && s[-1] == ')') { --s; --s; if (*s == '(') s[2] = 0; else if (*s == ':') { while (*s != '(') --s; s[1] = ')'; s[2] = 0; } } } /* Fixup a function name (take care of embedded spaces). */ static char * fixname(nam, buf) char *nam; char *buf; { char *s, *t; int fg; s = nam; t = buf; fg = 0; while (*s != 0) { if (*s == ' ') { *t++ = '\36'; ++fg; } else *t++ = *s; ++s; } *t = 0; if (fg == 0) return nam; return buf; } /* Open file for xreffing. */ static void open_xref_file(file) char *file; { char *s, *t; #ifdef XREF_FILE_NAME XREF_FILE_NAME (xref_name, file); #else s = rindex (file, '/'); if (s == NULL) sprintf (xref_name, ".%s.gxref", file); else { ++s; strcpy (xref_name, file); t = rindex (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; } }