/* $OpenBSD: emit2.c,v 1.2 1996/06/26 05:44:22 deraadt Exp $ */ /* $NetBSD: emit2.c,v 1.2 1995/07/03 21:24:44 cgd Exp $ */ /* * Copyright (c) 1994, 1995 Jochen Pohl * All Rights Reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Jochen Pohl for * The NetBSD Project. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef lint static char rcsid[] = "$OpenBSD: emit2.c,v 1.2 1996/06/26 05:44:22 deraadt Exp $"; #endif #include #include "lint2.h" static void outtype __P((type_t *)); static void outdef __P((hte_t *, sym_t *)); static void dumpname __P((hte_t *)); /* * Write type into the output buffer. */ static void outtype(tp) type_t *tp; { int t, s, na; tspec_t ts; type_t **ap; while (tp != NULL) { if ((ts = tp->t_tspec) == INT && tp->t_isenum) ts = ENUM; switch (ts) { case CHAR: t = 'C'; s = '\0'; break; case SCHAR: t = 'C'; s = 's'; break; case UCHAR: t = 'C'; s = 'u'; break; case SHORT: t = 'S'; s = '\0'; break; case USHORT: t = 'S'; s = 'u'; break; case INT: t = 'I'; s = '\0'; break; case UINT: t = 'I'; s = 'u'; break; case LONG: t = 'L'; s = '\0'; break; case ULONG: t = 'L'; s = 'u'; break; case QUAD: t = 'Q'; s = '\0'; break; case UQUAD: t = 'Q'; s = 'u'; break; case FLOAT: t = 'D'; s = 's'; break; case DOUBLE: t = 'D'; s = '\0'; break; case LDOUBLE: t = 'D'; s = 'l'; break; case VOID: t = 'V'; s = '\0'; break; case PTR: t = 'P'; s = '\0'; break; case ARRAY: t = 'A'; s = '\0'; break; case ENUM: t = 'T'; s = 'e'; break; case STRUCT: t = 'T'; s = 's'; break; case UNION: t = 'T'; s = 'u'; break; case FUNC: if (tp->t_args != NULL && !tp->t_proto) { t = 'f'; } else { t = 'F'; } s = '\0'; break; default: errx(1, "internal error: outtype() 1"); } if (tp->t_const) outchar('c'); if (tp->t_volatile) outchar('v'); if (s != '\0') outchar(s); outchar(t); if (ts == ARRAY) { outint(tp->t_dim); } else if (ts == ENUM || ts == STRUCT || ts == UNION) { if (tp->t_istag) { outint(1); outname(tp->t_tag->h_name); } else if (tp->t_istynam) { outint(2); outname(tp->t_tynam->h_name); } else { outint(0); } } else if (ts == FUNC && tp->t_args != NULL) { na = 0; for (ap = tp->t_args; *ap != NULL; ap++) na++; if (tp->t_vararg) na++; outint(na); for (ap = tp->t_args; *ap != NULL; ap++) outtype(*ap); if (tp->t_vararg) outchar('E'); } tp = tp->t_subt; } } /* * Write a definition. */ static void outdef(hte, sym) hte_t *hte; sym_t *sym; { /* reset output buffer */ outclr(); /* line number in C source file */ outint(0); /* this is a definition */ outchar('d'); /* index of file where symbol was defined and line number of def. */ outint(0); outchar('.'); outint(0); /* flags */ if (sym->s_va) { outchar('v'); /* varargs */ outint(sym->s_nva); } if (sym->s_scfl) { outchar('S'); /* scanflike */ outint(sym->s_nscfl); } if (sym->s_prfl) { outchar('P'); /* printflike */ outint(sym->s_nprfl); } /* definition or tentative definition */ outchar(sym->s_def == DEF ? 'd' : 't'); if (TP(sym->s_type)->t_tspec == FUNC) { if (sym->s_rval) outchar('r'); /* fkt. has return value */ if (sym->s_osdef) outchar('o'); /* old style definition */ } outchar('u'); /* used (no warning if not used) */ /* name */ outname(hte->h_name); /* type */ outtype(TP(sym->s_type)); } /* * Write the first definition of a name into the lint library. */ static void dumpname(hte) hte_t *hte; { sym_t *sym, *def; /* static and undefined symbols are not written */ if (hte->h_static || !hte->h_def) return; /* * If there is a definition, write it. Otherwise write a tentative * definition. This is neccessary because more than one tentative * definition is allowed (except with sflag). */ def = NULL; for (sym = hte->h_syms; sym != NULL; sym = sym->s_nxt) { if (sym->s_def == DEF) { def = sym; break; } if (sym->s_def == TDEF && def == NULL) def = sym; } if (def == NULL) errx(1, "internal error: dumpname() %s", hte->h_name); outdef(hte, def); } /* * Write a new lint library. */ void outlib(name) const char *name; { /* Open of output file and initialisation of the output buffer */ outopen(name); /* write name of lint library */ outsrc(name); /* name of lint lib has index 0 */ outclr(); outint(0); outchar('s'); outstrg(name); /* write all definitions with external linkage */ forall(dumpname); /* close the output */ outclose(); }