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cmain.c
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C/C++ Source or Header
|
2002-01-18
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16KB
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624 lines
/*
* cmain.c - main program icon compiler.
*/
#include "../h/gsupport.h"
#include "ctrans.h"
#include "ctree.h"
#include "ccode.h"
#include "csym.h"
#include "cproto.h"
/*
* Prototypes.
*/
static void execute (char *ofile, char *efile, char **args);
static FILE *open_out (char *fname);
static void rmfile (char *fname);
static void report (char *s);
static void usage (void);
#ifdef strlen
#undef strlen /* pre-defined in some contexts */
#endif /* strlen */
#ifdef ExpTools
char *toolstr = "${TOOLS}";
#endif /* ExpTools */
char *refpath;
char patchpath[MaxPath+18] = "%PatchStringHere->";
/*
* Define global variables.
*/
#define Global
#define Init(v) = v
#include "cglobals.h"
/*
* getopt() variables
*/
extern int optind; /* index into parent argv vector */
extern int optopt; /* character checked for validity */
extern char *optarg; /* argument associated with option */
/*
* main program
*/
int main(argc,argv)
int argc;
char **argv;
{
int no_c_comp = 0; /* suppress C compile and link? */
int errors = 0; /* compilation errors */
char *cfile = NULL; /* name of C file - primary */
char *hfile = NULL; /* name of C file - include */
char *ofile = NULL; /* name of executable result */
char *efile = NULL; /* stderr file */
char *db_name = "rt.db"; /* data base name */
char *incl_file = "rt.h"; /* header file name */
char *db_path; /* path to data base */
char *db_lst; /* list of private data bases */
char *incl_path; /* path to header file */
char *s, c1;
char buf[MaxFileName]; /* file name construction buffer */
#ifdef ExpTools
char Buf[MaxFileName];
char *tools; /* patch and TOOLS string buffer */
#endif /* ExpTools */
int c;
int ret_code;
struct fileparts *fp;
#ifdef ExpTools
/* needs rewrite */
if (strlen(patchpath)>18) {
refpath = patchpath+18;
if(!strncmp(refpath,toolstr,strlen(toolstr))) { /* Is it TOOLS */
refpath = refpath+strlen(toolstr); /* skip TOOLS */
if ((tools = getenv("TOOLS")) == NULL) {
fprintf(stderr,
"patchstr begins with \"${TOOLS}\" but ${TOOLS} has no value\n");
fprintf(stderr, "patchstr=%s\ncompilation aborted\n", refpath);
exit(EXIT_FAILURE);
} else strcpy(Buf,tools);
strcat(Buf,refpath); /* append name */
if (Buf[strlen(Buf)-1] != '/') strcat(Buf,"/");
refpath = Buf; /* use refpath */
}
}
fprintf(stderr,"iconc library files found in %s\n",refpath);
#else /* ExpTools */
if ((int)strlen(patchpath) > 18)
refpath = patchpath+18;
else
refpath = relfile(argv[0], "/../");
#endif /* ExpTools */
/*
* Process options.
*/
while ((c = getopt(argc,argv,"+C:ELS:Tce:f:mn:o:p:r:stuv:x")) != EOF)
switch (c) {
case 'C': /* -C C-comp: C compiler*/
c_comp = optarg;
break;
case 'E': /* -E: preprocess only */
pponly = 1;
no_c_comp = 1;
break;
case 'L': /* Ignore: interpreter only */
break;
case 'S': /* Ignore: interpreter only */
break;
case 'T':
just_type_trace = 1;
break;
case 'c': /* -c: produce C file only */
no_c_comp = 1;
break;
case 'e': /* -e file: redirect stderr */
efile = optarg;
break;
case 'f': /* -f: enable features */
for (s = optarg; *s != '\0'; ++s) {
switch (*s) {
case 'a': /* -fa: enable all features */
line_info = 1;
debug_info = 1;
err_conv = 1;
largeints = 1;
str_inv = 1;
break;
case 'd': /* -fd: enable debugging features */
line_info = 1;
debug_info = 1;
break;
case 'e': /* -fe: enable error conversion */
err_conv = 1;
break;
case 'l': /* -fl: support large integers */
largeints = 1;
break;
case 'n': /* -fn: enable line numbers */
line_info = 1;
break;
case 's': /* -fs: enable full string invocation */
str_inv = 1;
break;
default:
quitf("-f option must be a, d, e, l, n, or s. found: %s",
optarg);
}
}
break;
case 'm': /* -m: preprocess using m4(1) [UNIX] */
m4pre = 1;
break;
case 'n': /* -n: disable optimizations */
for (s = optarg; *s != '\0'; ++s) {
switch (*s) {
case 'a': /* -na: disable all optimizations */
opt_cntrl = 0;
allow_inline = 0;
opt_sgnl = 0;
do_typinfer = 0;
break;
case 'c': /* -nc: disable control flow opts */
opt_cntrl = 0;
break;
case 'e': /* -ne: disable expanding in-line */
allow_inline = 0;
break;
case 's': /* -ns: disable switch optimizations */
opt_sgnl = 0;
break;
case 't': /* -nt: disable type inference */
do_typinfer = 0;
break;
default:
usage();
}
}
break;
case 'o': /* -o file: name output file */
ofile = optarg;
break;
case 'p': /* -p C-opts: options for C comp */
if (*optarg == '\0') /* if empty string, clear options */
c_opts = optarg;
else { /* else append to current set */
s = (char *)alloc(strlen(c_opts) + 1 + strlen(optarg) + 1);
sprintf(s, "%s %s", c_opts, optarg);
c_opts = s;
}
break;
case 'r': /* -r path: primary runtime system */
refpath = optarg;
break;
case 's': /* -s: suppress informative messages */
verbose = 0;
break;
case 't': /* -t: &trace = -1 */
line_info = 1;
debug_info = 1;
trace = 1;
break;
case 'u': /* -u: warn about undeclared ids */
uwarn = 1;
break;
case 'v': /* -v: set level of verbosity */
if (sscanf(optarg, "%d%c", &verbose, &c1) != 1)
quitf("bad operand to -v option: %s",optarg);
break;
default:
case 'x': /* -x illegal until after file list */
usage();
}
init(); /* initialize memory for translation */
/*
* Load the data bases of information about run-time routines and
* determine what libraries are needed for linking (these libraries
* go before any specified on the command line).
*/
db_lst = getenv("DBLIST");
if (db_lst != NULL)
db_lst = salloc(db_lst);
s = db_lst;
while (s != NULL) {
db_lst = s;
while (isspace(*db_lst))
++db_lst;
if (*db_lst == '\0')
break;
for (s = db_lst; !isspace(*s) && *s != '\0'; ++s)
;
if (*s == '\0')
s = NULL;
else
*s++ = '\0';
readdb(db_lst);
addlib(salloc(makename(buf,SourceDir, db_lst, LibSuffix)));
}
db_path = (char *)alloc((unsigned int)strlen(refpath) + strlen(db_name) + 1);
strcpy(db_path, refpath);
strcat(db_path, db_name);
readdb(db_path);
addlib(salloc(makename(buf,SourceDir, db_path, LibSuffix)));
/*
* Scan the rest of the command line for file name arguments.
*/
while (optind < argc) {
if (strcmp(argv[optind],"-x") == 0) /* stop at -x */
break;
else if (strcmp(argv[optind],"-") == 0)
src_file("-"); /* "-" means standard input */
/*
* The following code is operating-system dependent [@tmain.02]. Check for
* C linker options on the command line.
*/
#if PORT
/* something is needed */
Deliberate Syntax Error
#endif /* PORT */
#if UNIX
else if (argv[optind][0] == '-')
addlib(argv[optind]); /* assume linker option */
#endif /* UNIX ... */
#if AMIGA || MACINTOSH || MSDOS || OS2 || VMS
/*
* Linker options on command line not supported.
*/
#endif /* AMIGA || ... */
/*
* End of operating-system specific code.
*/
else {
fp = fparse(argv[optind]); /* parse file name */
if (*fp->ext == '\0' || smatch(fp->ext, SourceSuffix)) {
makename(buf,SourceDir,argv[optind], SourceSuffix);
#if VMS
strcat(buf, fp->version);
#endif /* VMS */
src_file(buf);
}
else
/*
* The following code is operating-system dependent [@tmain.03]. Pass
* appropriate files on to linker.
*/
#if PORT
/* something is needed */
Deliberate Syntax Error
#endif /* PORT */
#if UNIX
/*
* Assume all files that are not Icon source go to linker.
*/
addlib(argv[optind]);
#endif /* UNIX ... */
#if AMIGA || MACINTOSH || MSDOS || OS2 || VMS
/*
* Pass no files to the linker.
*/
quitf("bad argument %s",argv[optind]);
#endif /* AMIGA || ... */
/*
* End of operating-system specific code.
*/
}
optind++;
}
if (srclst == NULL)
usage(); /* error -- no files named */
if (pponly) {
if (trans() == 0)
exit (EXIT_FAILURE);
else
exit (EXIT_SUCCESS);
}
if (ofile == NULL) { /* if no -o file, synthesize a name */
if (strcmp(srclst->name,"-") == 0)
ofile = salloc(makename(buf,TargetDir,"stdin",ExecSuffix));
else
ofile = salloc(makename(buf,TargetDir,srclst->name,ExecSuffix));
} else { /* add extension if necessary */
fp = fparse(ofile);
if (*fp->ext == '\0' && *ExecSuffix != '\0')
ofile = salloc(makename(buf,NULL,ofile,ExecSuffix));
}
/*
* Make name of intermediate C files.
*/
cfile = salloc(makename(buf,TargetDir,ofile,CSuffix));
hfile = salloc(makename(buf,TargetDir,ofile,HSuffix));
codefile = open_out(cfile);
fprintf(codefile, "#include \"%s\"\n", hfile);
inclfile = open_out(hfile);
fprintf(inclfile, "#define COMPILER 1\n");
incl_path = (char *)alloc((unsigned int)(strlen(refpath) +
strlen(incl_file) + 1));
strcpy(incl_path, refpath);
strcat(incl_path, incl_file);
fprintf(inclfile,"#include \"%s\"\n", incl_path);
/*
* Translate .icn files to make C file.
*/
if ((verbose > 0) && !just_type_trace)
report("Translating to C");
errors = trans();
if ((errors > 0) || just_type_trace) { /* exit if errors seen */
rmfile(cfile);
rmfile(hfile);
if (errors > 0)
exit(EXIT_FAILURE);
else exit(EXIT_SUCCESS);
}
fclose(codefile);
fclose(inclfile);
/*
* Compile and link C file.
*/
if (no_c_comp) /* exit if no C compile wanted */
exit(EXIT_SUCCESS);
#if !MSDOS
if (verbose > 0)
report("Compiling and linking C code");
#endif /* !MSDOS */
ret_code = ccomp(cfile, ofile);
if (ret_code == EXIT_FAILURE) {
fprintf(stderr, "*** C compile and link failed ***\n");
rmfile(ofile);
}
/*
* Finish by removing C files.
*/
#if !MSDOS
rmfile(cfile);
rmfile(hfile);
#endif /* !MSDOS */
rmfile(makename(buf,TargetDir,cfile,ObjSuffix));
if (ret_code == EXIT_SUCCESS && optind < argc) {
if (verbose > 0)
report("Executing");
execute (ofile, efile, argv+optind+1);
}
return ret_code;
}
/*
* execute - execute compiled Icon program
*/
static void execute(ofile,efile,args)
char *ofile, *efile, **args;
{
#if !(MACINTOSH && MPW)
int n;
char **argv, **p;
#if UNIX
char buf[MaxFileName]; /* file name construction buffer */
ofile = salloc(makename(buf,"./",ofile,ExecSuffix));
#endif /* UNIX */
for (n = 0; args[n] != NULL; n++) /* count arguments */
;
p = argv = (char **)alloc((unsigned int)((n + 2) * sizeof(char *)));
*p++ = ofile; /* set executable file */
#if AMIGA && LATTICE
*p = *args;
while (*p++) {
*p = *args;
args++;
}
#else /* AMIGA && LATTICE */
while (*p++ = *args++) /* copy args into argument vector */
;
#endif /* AMIGA && LATTICE */
*p = NULL;
if (efile != NULL && !redirerr(efile)) {
fprintf(stderr, "Unable to redirect &errout\n");
fflush(stderr);
}
/*
* The following code is operating-system dependent [@tmain.04]. It calls
* the Icon program on the way out.
*/
#if PORT
/* something is needed */
Deliberate Syntax Error
#endif /* PORT */
#if AMIGA
#if AZTEC_C
execvp(ofile,argv);
return;
#endif /* AZTEC_C */
#if LATTICE
{
struct ProcID procid;
if (forkv(ofile,argv,NULL,&procid) == 0) {
wait(&procid);
return;
}
}
#endif /* LATTICE */
#endif /* AMIGA */
#if MACINTOSH
fprintf(stderr,"-x not supported\n"); fflush(stderr);
#endif /* MACINTOSH */
#if MSDOS
#if MICROSOFT || TURBO || BORLAND_286 || BORLAND_386
execvp(ofile,argv);
#endif /* MICROSOFT || ... */
#if HIGHC_386 || INTEL_386 || ZTC_386 || WATCOM
fprintf(stderr,"-x not supported\n");
fflush(stderr);
#endif /* HIGHC_386 || ... */
#endif /* MSDOS */
#if OS2 || UNIX || VMS
execvp(ofile,argv);
#endif /* OS2 || UNIX || VMS */
/*
* End of operating-system specific code.
*/
quitf("could not run %s",ofile);
#else /* !(MACINTOSH && MPW) */
printf("-x not supported\n");
#endif /* !(MACINZTOSH && MPW) */
}
static void report(s)
char *s;
{
/*
* The following code is operating-system dependent [@tmain.05]. Report
* phase.
*/
#if PORT
fprintf(stderr,"%s:\n",s);
Deliberate Syntax Error
#endif /* PORT */
#if AMIGA || MSDOS || OS2 || UNIX || VMS
fprintf(stderr,"%s:\n",s);
#endif /* AMIGA || ... */
#if MACINTOSH
#if MPW
printf("Echo '%s:' > Dev:StdErr\n",s);
#endif /* MPW */
#if LSC
fprintf(stderr,"%s:\n",s);
#endif /* LSC */
#endif /* MACINTOSH */
/*
* End of operating-system specific code.
*/
}
/*
* rmfile - remove a file
*/
static void rmfile(fname)
char *fname;
{
#if MACINTOSH && MPW
/*
* MPW generates commands rather than doing the actions
* at this time.
*/
fprintf(stdout,"Delete %s\n", fname);
#else /* MACINTOSH && MPW */
remove(fname);
#endif /* MACINTOSH && MPW */
}
/*
* open_out - open a C output file and write identifying information
* to the front.
*/
static FILE *open_out(fname)
char *fname;
{
FILE *f;
static char *ident = "/*ICONC*/";
int c;
int i;
/*
* If the file already exists, make sure it is old output from iconc
* before overwriting it. Note, this test doesn't work if the file
* is writable but not readable.
*/
f = fopen(fname, "r");
if (f != NULL) {
for (i = 0; i < (int)strlen(ident); ++i) {
c = getc(f);
if (c == EOF)
break;
if ((char)c != ident[i])
quitf("%s not in iconc format; rename or delete, and rerun", fname);
}
fclose(f);
}
f = fopen(fname, "w");
if (f == NULL)
quitf("cannot create %s", fname);
fprintf(f, "%s\n", ident); /* write "belongs to iconc" comment */
id_comment(f); /* write detailed comment for human readers */
fflush(f);
return f;
}
/*
* Print an error message if called incorrectly. The message depends
* on the legal options for this system.
*/
static void usage()
{
fprintf(stderr,"usage: %s %s file ... [-x args]\n", progname, CUsage);
exit(EXIT_FAILURE);
}