diff options
Diffstat (limited to 'usr.bin/f2c/main.c')
| -rw-r--r-- | usr.bin/f2c/main.c | 611 |
1 files changed, 611 insertions, 0 deletions
diff --git a/usr.bin/f2c/main.c b/usr.bin/f2c/main.c new file mode 100644 index 0000000..a4bb2cd --- /dev/null +++ b/usr.bin/f2c/main.c @@ -0,0 +1,611 @@ +/**************************************************************** +Copyright 1990, 1991, 1992, 1993 by AT&T Bell Laboratories and Bellcore. + +Permission to use, copy, modify, and distribute this software +and its documentation for any purpose and without fee is hereby +granted, provided that the above copyright notice appear in all +copies and that both that the copyright notice and this +permission notice and warranty disclaimer appear in supporting +documentation, and that the names of AT&T Bell Laboratories or +Bellcore or any of their entities not be used in advertising or +publicity pertaining to distribution of the software without +specific, written prior permission. + +AT&T and Bellcore disclaim all warranties with regard to this +software, including all implied warranties of merchantability +and fitness. In no event shall AT&T or Bellcore be liable for +any special, indirect or consequential damages or any damages +whatsoever resulting from loss of use, data or profits, whether +in an action of contract, negligence or other tortious action, +arising out of or in connection with the use or performance of +this software. +****************************************************************/ + +extern char F2C_version[]; + +#include "defs.h" +#include "parse.h" + +int complex_seen, dcomplex_seen; + +LOCAL int Max_ftn_files; + +char **ftn_files; +int current_ftn_file = 0; + +flag ftn66flag = NO; +flag nowarnflag = NO; +flag noextflag = NO; +flag no66flag = NO; /* Must also set noextflag to this + same value */ +flag zflag = YES; /* recognize double complex intrinsics */ +flag debugflag = NO; +flag onetripflag = NO; +flag shiftcase = YES; +flag undeftype = NO; +flag checksubs = NO; +flag r8flag = NO; +flag use_bs = YES; +flag keepsubs = NO; +#ifdef TYQUAD +flag use_tyquad = YES; +#endif +int tyreal = TYREAL; +int tycomplex = TYCOMPLEX; +extern void r8fix(), read_Pfiles(); + +int maxregvar = MAXREGVAR; /* if maxregvar > MAXREGVAR, error */ +int maxequiv = MAXEQUIV; +int maxext = MAXEXT; +int maxstno = MAXSTNO; +int maxctl = MAXCTL; +int maxhash = MAXHASH; +int maxliterals = MAXLITERALS; +int maxcontin = MAXCONTIN; +int maxlablist = MAXLABLIST; +int extcomm, ext1comm, useauto; +int can_include = YES; /* so we can disable includes for netlib */ + +static char *def_i2 = ""; + +static int useshortints = NO; /* YES => tyint = TYSHORT */ +static int uselongints = NO; /* YES => tyint = TYLONG */ +int addftnsrc = NO; /* Include ftn source in output */ +int usedefsforcommon = NO; /* Use #defines for common reference */ +int forcedouble = YES; /* force real functions to double */ +int Ansi = NO; +int def_equivs = YES; +int tyioint = TYLONG; +int szleng = SZLENG; +int inqmask = M(TYLONG)|M(TYLOGICAL); +int wordalign = NO; +int forcereal = NO; +int warn72 = NO; +static int skipC, skipversion; +char *file_name, *filename0, *parens; +int Castargs = 1; +static int Castargs1; +static int typedefs = 0; +int chars_per_wd, gflag, protostatus; +int infertypes = 1; +char used_rets[TYSUBR+1]; +extern char *tmpdir; +static int h0align = 0; +char *halign, *ohalign; +int krparens = NO; +int hsize; /* for padding under -h */ +int htype; /* for wr_equiv_init under -h */ + +#define f2c_entry(swit,count,type,store,size) \ + p_entry ("-", swit, 0, count, type, store, size) + +static arg_info table[] = { + f2c_entry ("w66", P_NO_ARGS, P_INT, &ftn66flag, YES), + f2c_entry ("w", P_NO_ARGS, P_INT, &nowarnflag, YES), + f2c_entry ("66", P_NO_ARGS, P_INT, &no66flag, YES), + f2c_entry ("d", P_ONE_ARG, P_INT, &debugflag, YES), + f2c_entry ("1", P_NO_ARGS, P_INT, &onetripflag, YES), + f2c_entry ("onetrip", P_NO_ARGS, P_INT, &onetripflag, YES), + f2c_entry ("I2", P_NO_ARGS, P_INT, &useshortints, YES), + f2c_entry ("I4", P_NO_ARGS, P_INT, &uselongints, YES), + f2c_entry ("U", P_NO_ARGS, P_INT, &shiftcase, NO), + f2c_entry ("u", P_NO_ARGS, P_INT, &undeftype, YES), + f2c_entry ("O", P_ONE_ARG, P_INT, &maxregvar, 0), + f2c_entry ("C", P_NO_ARGS, P_INT, &checksubs, YES), + f2c_entry ("Nq", P_ONE_ARG, P_INT, &maxequiv, 0), + f2c_entry ("Nx", P_ONE_ARG, P_INT, &maxext, 0), + f2c_entry ("Ns", P_ONE_ARG, P_INT, &maxstno, 0), + f2c_entry ("Nc", P_ONE_ARG, P_INT, &maxctl, 0), + f2c_entry ("Nn", P_ONE_ARG, P_INT, &maxhash, 0), + f2c_entry ("NL", P_ONE_ARG, P_INT, &maxliterals, 0), + f2c_entry ("NC", P_ONE_ARG, P_INT, &maxcontin, 0), + f2c_entry ("Nl", P_ONE_ARG, P_INT, &maxlablist, 0), + f2c_entry ("c", P_NO_ARGS, P_INT, &addftnsrc, YES), + f2c_entry ("p", P_NO_ARGS, P_INT, &usedefsforcommon, YES), + f2c_entry ("R", P_NO_ARGS, P_INT, &forcedouble, NO), + f2c_entry ("!R", P_NO_ARGS, P_INT, &forcedouble, YES), + f2c_entry ("A", P_NO_ARGS, P_INT, &Ansi, YES), + f2c_entry ("ext", P_NO_ARGS, P_INT, &noextflag, YES), + f2c_entry ("z", P_NO_ARGS, P_INT, &zflag, NO), + f2c_entry ("a", P_NO_ARGS, P_INT, &useauto, YES), + f2c_entry ("r8", P_NO_ARGS, P_INT, &r8flag, YES), + f2c_entry ("i2", P_NO_ARGS, P_INT, &tyioint, NO), + f2c_entry ("w8", P_NO_ARGS, P_INT, &wordalign, YES), + f2c_entry ("!I", P_NO_ARGS, P_INT, &can_include, NO), + f2c_entry ("W", P_ONE_ARG, P_INT, &chars_per_wd, 0), + f2c_entry ("g", P_NO_ARGS, P_INT, &gflag, YES), + f2c_entry ("T", P_ONE_ARG, P_STRING, &tmpdir, 0), + f2c_entry ("E", P_NO_ARGS, P_INT, &extcomm, 1), + f2c_entry ("e1c", P_NO_ARGS, P_INT, &ext1comm, 1), + f2c_entry ("ec", P_NO_ARGS, P_INT, &ext1comm, 2), + f2c_entry ("C++", P_NO_ARGS, P_INT, &Ansi, 2), + f2c_entry ("P", P_NO_ARGS, P_INT, &Castargs, 3), + f2c_entry ("Ps", P_NO_ARGS, P_INT, &protostatus, 1), + f2c_entry ("!P", P_NO_ARGS, P_INT, &Castargs, 0), + f2c_entry ("!c", P_NO_ARGS, P_INT, &skipC, 1), + f2c_entry ("!it", P_NO_ARGS, P_INT, &infertypes, 0), + f2c_entry ("h", P_NO_ARGS, P_INT, &h0align, 1), + f2c_entry ("hd", P_NO_ARGS, P_INT, &h0align, 2), + f2c_entry ("kr", P_NO_ARGS, P_INT, &krparens, 1), + f2c_entry ("krd", P_NO_ARGS, P_INT, &krparens, 2), + f2c_entry ("!bs", P_NO_ARGS, P_INT, &use_bs, NO), + f2c_entry ("r", P_NO_ARGS, P_INT, &forcereal, YES), + f2c_entry ("72", P_NO_ARGS, P_INT, &warn72, 1), + f2c_entry ("f", P_NO_ARGS, P_INT, &warn72, 2), + f2c_entry ("s", P_NO_ARGS, P_INT, &keepsubs, 1), +#ifdef TYQUAD + f2c_entry ("!i8", P_NO_ARGS, P_INT, &use_tyquad, NO), +#endif + + /* options omitted from man pages */ + + /* -ev ==> implement equivalence with initialized pointers */ + f2c_entry ("ev", P_NO_ARGS, P_INT, &def_equivs, NO), + + /* -!it used to be the default when -it was more agressive */ + + f2c_entry ("it", P_NO_ARGS, P_INT, &infertypes, 1), + + /* -Pd is similar to -P, but omits :ref: lines */ + f2c_entry ("Pd", P_NO_ARGS, P_INT, &Castargs, 2), + + /* -t ==> emit typedefs (under -A or -C++) for procedure + argument types used. This is meant for netlib's + f2c service, so -A and -C++ will work with older + versions of f2c.h + */ + f2c_entry ("t", P_NO_ARGS, P_INT, &typedefs, 1), + + /* -!V ==> omit version msg (to facilitate using diff in + regression testing) + */ + f2c_entry ("!V", P_NO_ARGS, P_INT, &skipversion, 1) + +}; /* table */ + +extern char *c_functions; /* "c_functions" */ +extern char *coutput; /* "c_output" */ +extern char *initfname; /* "raw_data" */ +extern char *blkdfname; /* "block_data" */ +extern char *p1_file; /* "p1_file" */ +extern char *p1_bakfile; /* "p1_file.BAK" */ +extern char *sortfname; /* "init_file" */ +extern char *proto_fname; /* "proto_file" */ +FILE *protofile; + +extern void list_init_data(), set_tmp_names(), sigcatch(), Un_link_all(); +extern char *c_name(); + + +set_externs () +{ + static char *hset[3] = { 0, "integer", "doublereal" }; + +/* Adjust the global flags according to the command line parameters */ + + if (chars_per_wd > 0) { + typesize[TYADDR] = typesize[TYLONG] = typesize[TYREAL] = + typesize[TYLOGICAL] = chars_per_wd; + typesize[TYINT1] = typesize[TYLOGICAL1] = 1; + typesize[TYDREAL] = typesize[TYCOMPLEX] = chars_per_wd << 1; + typesize[TYDCOMPLEX] = chars_per_wd << 2; + typesize[TYSHORT] = typesize[TYLOGICAL2] = chars_per_wd >> 1; + typesize[TYCILIST] = 5*chars_per_wd; + typesize[TYICILIST] = 6*chars_per_wd; + typesize[TYOLIST] = 9*chars_per_wd; + typesize[TYCLLIST] = 3*chars_per_wd; + typesize[TYALIST] = 2*chars_per_wd; + typesize[TYINLIST] = 26*chars_per_wd; + } + + if (wordalign) + typealign[TYDREAL] = typealign[TYDCOMPLEX] = typealign[TYREAL]; + if (!tyioint) { + tyioint = TYSHORT; + szleng = typesize[TYSHORT]; + def_i2 = "#define f2c_i2 1\n"; + inqmask = M(TYSHORT)|M(TYLOGICAL); + goto checklong; + } + else + szleng = typesize[TYLONG]; + if (useshortints) { + inqmask = M(TYLONG); + checklong: + protorettypes[TYLOGICAL] = typename[TYLOGICAL] = "shortlogical"; + typesize[TYLOGICAL] = typesize[TYSHORT]; + casttypes[TYLOGICAL] = "K_fp"; + if (uselongints) + err ("Can't use both long and short ints"); + else { + tyint = tylogical = TYSHORT; + tylog = TYLOGICAL2; + } + } + else if (uselongints) + tyint = TYLONG; + + if (h0align) { + if (tyint == TYLONG && wordalign) + h0align = 1; + ohalign = halign = hset[h0align]; + htype = h0align == 1 ? tyint : TYDREAL; + hsize = typesize[htype]; + } + + if (no66flag) + noextflag = no66flag; + if (noextflag) + zflag = 0; + + if (r8flag) { + tyreal = TYDREAL; + tycomplex = TYDCOMPLEX; + r8fix(); + } + if (forcedouble) { + protorettypes[TYREAL] = "E_f"; + casttypes[TYREAL] = "E_fp"; + } + + if (maxregvar > MAXREGVAR) { + warni("-O%d: too many register variables", maxregvar); + maxregvar = MAXREGVAR; + } /* if maxregvar > MAXREGVAR */ + +/* Check the list of input files */ + + { + int bad, i, cur_max = Max_ftn_files; + + for (i = bad = 0; i < cur_max && ftn_files[i]; i++) + if (ftn_files[i][0] == '-') { + errstr ("Invalid flag '%s'", ftn_files[i]); + bad++; + } + if (bad) + exit(1); + + } /* block */ +} /* set_externs */ + + + static int +comm2dcl() +{ + Extsym *ext; + if (ext1comm) + for(ext = extsymtab; ext < nextext; ext++) + if (ext->extstg == STGCOMMON && !ext->extinit) + return ext1comm; + return 0; + } + + static void +write_typedefs(outfile) + FILE *outfile; +{ + register int i; + register char *s, *p = 0; + static char st[4] = { TYREAL, TYCOMPLEX, TYDCOMPLEX, TYCHAR }; + static char stl[4] = { 'E', 'C', 'Z', 'H' }; + + for(i = 0; i <= TYSUBR; i++) + if (s = usedcasts[i]) { + if (!p) { + p = Ansi == 1 ? "()" : "(...)"; + nice_printf(outfile, + "/* Types for casting procedure arguments: */\ +\n\n#ifndef F2C_proc_par_types\n"); + if (i == 0) { + nice_printf(outfile, + "typedef int /* Unknown procedure type */ (*%s)%s;\n", + s, p); + continue; + } + } + nice_printf(outfile, "typedef %s (*%s)%s;\n", + c_type_decl(i,1), s, p); + } + for(i = !forcedouble; i < 4; i++) + if (used_rets[st[i]]) + nice_printf(outfile, + "typedef %s %c_f; /* %s function */\n", + p = i ? "VOID" : "doublereal", + stl[i], ftn_types[st[i]]); + if (p) + nice_printf(outfile, "#endif\n\n"); + } + + static void +commonprotos(outfile) + register FILE *outfile; +{ + register Extsym *e, *ee; + register Argtypes *at; + Atype *a, *ae; + int k; + extern int proc_protochanges; + + if (!outfile) + return; + for (e = extsymtab, ee = nextext; e < ee; e++) + if (e->extstg == STGCOMMON && e->allextp) + nice_printf(outfile, "/* comlen %s %ld */\n", + e->cextname, e->maxleng); + if (Castargs1 < 3) + return; + + /* -Pr: special comments conveying current knowledge + of external references */ + + k = proc_protochanges; + for (e = extsymtab, ee = nextext; e < ee; e++) + if (e->extstg == STGEXT + && e->cextname != e->fextname) /* not a library function */ + if (at = e->arginfo) { + if ((!e->extinit || at->changes & 1) + /* not defined here or + changed since definition */ + && at->nargs >= 0) { + nice_printf(outfile, "/*:ref: %s %d %d", + e->cextname, e->extype, at->nargs); + a = at->atypes; + for(ae = a + at->nargs; a < ae; a++) + nice_printf(outfile, " %d", a->type); + nice_printf(outfile, " */\n"); + if (at->changes & 1) + k++; + } + } + else if (e->extype) + /* typed external, never invoked */ + nice_printf(outfile, "/*:ref: %s %d :*/\n", + e->cextname, e->extype); + if (k) { + nice_printf(outfile, + "/* Rerunning f2c -P may change prototypes or declarations. */\n"); + if (nerr) + return; + if (protostatus) + done(4); + if (protofile != stdout) { + fprintf(diagfile, + "Rerunning \"f2c -P ... %s %s\" may change prototypes or declarations.\n", + filename0, proto_fname); + fflush(diagfile); + } + } + } + + int retcode = 0; + +main(argc, argv) +int argc; +char **argv; +{ + int c2d, k; + FILE *c_output; + char *cdfilename; + static char stderrbuf[BUFSIZ]; + extern void def_commons(); + extern char **dfltproc, *dflt1proc[]; + extern char link_msg[]; + + diagfile = stderr; + setbuf(stderr, stderrbuf); /* arrange for fast error msgs */ + + Max_ftn_files = argc - 1; + ftn_files = (char **)ckalloc((argc+1)*sizeof(char *)); + + parse_args (argc, argv, table, sizeof(table)/sizeof(arg_info), + ftn_files, Max_ftn_files); + if (!can_include && ext1comm == 2) + ext1comm = 1; + if (ext1comm && !extcomm) + extcomm = 2; + if (protostatus) + Castargs = 3; + Castargs1 = Castargs; + if (!Ansi) { + Castargs = 0; + parens = "()"; + } + else if (!Castargs) + parens = Ansi == 1 ? "()" : "(...)"; + else + dfltproc = dflt1proc; + + set_externs(); + fileinit(); + read_Pfiles(ftn_files); + + for(k = 1; ftn_files[k]; k++) + if (dofork()) + break; + filename0 = file_name = ftn_files[current_ftn_file = k - 1]; + + set_tmp_names(); + sigcatch(); + + c_file = opf(c_functions, textwrite); + pass1_file=opf(p1_file, binwrite); + initkey(); + if (file_name && *file_name) { + if (debugflag != 1) { + coutput = c_name(file_name,'c'); + if (Castargs1 >= 2) + proto_fname = c_name(file_name,'P'); + } + cdfilename = coutput; + if (skipC) + coutput = 0; + else if (!(c_output = fopen(coutput, textwrite))) { + file_name = coutput; + coutput = 0; /* don't delete read-only .c file */ + fatalstr("can't open %.86s", file_name); + } + + if (Castargs1 >= 2 + && !(protofile = fopen(proto_fname, textwrite))) + fatalstr("Can't open %.84s\n", proto_fname); + } + else { + file_name = ""; + cdfilename = "f2c_out.c"; + c_output = stdout; + coutput = 0; + if (Castargs1 >= 2) { + protofile = stdout; + if (!skipC) + printf("#ifdef P_R_O_T_O_T_Y_P_E_S\n"); + } + } + + if(inilex( copys(file_name) )) + done(1); + if (filename0) { + fprintf(diagfile, "%s:\n", file_name); + fflush(diagfile); + } + + procinit(); + if(k = yyparse()) + { + fprintf(diagfile, "Bad parse, return code %d\n", k); + done(1); + } + + commonprotos(protofile); + if (protofile == stdout && !skipC) + printf("#endif\n\n"); + + if (nerr || skipC) + goto C_skipped; + + +/* Write out the declarations which are global to this file */ + + if ((c2d = comm2dcl()) == 1) + nice_printf(c_output, "/*>>>'/dev/null'<<<*/\n\n\ +/* Split this into several files by piping it through\n\n\ +sed \"s/^\\/\\*>>>'\\(.*\\)'<<<\\*\\/\\$/cat >'\\1' <<'\\/*<<<\\1>>>*\\/'/\" | /bin/sh\n\ + */\n\ +/*<<</dev/null>>>*/\n\ +/*>>>'%s'<<<*/\n", cdfilename); + if (gflag) + nice_printf (c_output, "#line 1 \"%s\"\n", file_name); + if (!skipversion) { + nice_printf (c_output, "/* %s -- translated by f2c ", file_name); + nice_printf (c_output, "(version %s).\n", F2C_version); + nice_printf (c_output, + " You must link the resulting object file with the libraries:\n\ + %s (in that order)\n*/\n\n", link_msg); + } + if (Ansi == 2) + nice_printf(c_output, + "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); + nice_printf (c_output, "%s#include \"f2c.h\"\n\n", def_i2); + if (gflag) + nice_printf (c_output, "#line 1 \"%s\"\n", file_name); + if (Castargs && typedefs) + write_typedefs(c_output); + nice_printf (c_file, "\n"); + fclose (c_file); + c_file = c_output; /* HACK to get the next indenting + to work */ + wr_common_decls (c_output); + if (blkdfile) + list_init_data(&blkdfile, blkdfname, c_output); + wr_globals (c_output); + if ((c_file = fopen (c_functions, textread)) == (FILE *) NULL) + Fatal("main - couldn't reopen c_functions"); + ffilecopy (c_file, c_output); + if (*main_alias) { + nice_printf (c_output, "/* Main program alias */ "); + nice_printf (c_output, "int %s () { MAIN__ ();%s }\n", + main_alias, Ansi ? " return 0;" : ""); + } + if (Ansi == 2) + nice_printf(c_output, + "#ifdef __cplusplus\n\t}\n#endif\n"); + if (c2d) { + if (c2d == 1) + fprintf(c_output, "/*<<<%s>>>*/\n", cdfilename); + else + fclose(c_output); + def_commons(c_output); + } + if (c2d != 2) + fclose (c_output); + + C_skipped: + if(parstate != OUTSIDE) + { + warn("missing final end statement"); + endproc(); + } + done(nerr ? 1 : 0); +} + + +FILEP opf(fn, mode) +char *fn, *mode; +{ + FILEP fp; + if( fp = fopen(fn, mode) ) + return(fp); + + fatalstr("cannot open intermediate file %s", fn); + /* NOT REACHED */ return 0; +} + + +clf(p, what, quit) + FILEP *p; + char *what; + int quit; +{ + if(p!=NULL && *p!=NULL && *p!=stdout) + { + if(ferror(*p)) { + fprintf(stderr, "I/O error on %s\n", what); + if (quit) + done(3); + retcode = 3; + } + fclose(*p); + } + *p = NULL; +} + + +done(k) +int k; +{ + clf(&initfile, "initfile", 0); + clf(&c_file, "c_file", 0); + clf(&pass1_file, "pass1_file", 0); + Un_link_all(k); + exit(k|retcode); +} |
