* Moved lcc and q3asm into code/tools
This commit is contained in:
Tim Angus
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b1cef6352e
commit
ad118b9baf
452 changed files with 0 additions and 0 deletions
225
code/tools/lcc/src/main.c
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225
code/tools/lcc/src/main.c
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#include "c.h"
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static char rcsid[] = "main.c - faked rcsid";
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static void typestab(Symbol, void *);
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static void stabline(Coordinate *);
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static void stabend(Coordinate *, Symbol, Coordinate **, Symbol *, Symbol *);
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Interface *IR = NULL;
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int Aflag; /* >= 0 if -A specified */
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int Pflag; /* != 0 if -P specified */
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int glevel; /* == [0-9] if -g[0-9] specified */
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int xref; /* != 0 for cross-reference data */
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Symbol YYnull; /* _YYnull symbol if -n or -nvalidate specified */
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Symbol YYcheck; /* _YYcheck symbol if -nvalidate,check specified */
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static char *comment;
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static Interface stabIR;
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static char *currentfile; /* current file name */
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static int currentline; /* current line number */
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static FILE *srcfp; /* stream for current file, if non-NULL */
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static int srcpos; /* position of srcfp, if srcfp is non-NULL */
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int main(int argc, char *argv[]) {
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int i, j;
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for (i = argc - 1; i > 0; i--)
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if (strncmp(argv[i], "-target=", 8) == 0)
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break;
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if (i > 0) {
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char *s = strchr(argv[i], '\\');
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if (s != NULL)
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*s = '/';
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for (j = 0; bindings[j].name && bindings[j].ir; j++)
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if (strcmp(&argv[i][8], bindings[j].name) == 0) {
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IR = bindings[j].ir;
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break;
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}
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if (s != NULL)
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*s = '\\';
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}
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if (!IR) {
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fprint(stderr, "%s: unknown target", argv[0]);
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if (i > 0)
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fprint(stderr, " `%s'", &argv[i][8]);
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fprint(stderr, "; must specify one of\n");
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for (i = 0; bindings[i].name; i++)
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fprint(stderr, "\t-target=%s\n", bindings[i].name);
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exit(EXIT_FAILURE);
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}
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init(argc, argv);
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t = gettok();
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(*IR->progbeg)(argc, argv);
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if (glevel && IR->stabinit)
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(*IR->stabinit)(firstfile, argc, argv);
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program();
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if (events.end)
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apply(events.end, NULL, NULL);
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memset(&events, 0, sizeof events);
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if (glevel || xref) {
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Symbol symroot = NULL;
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Coordinate src;
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foreach(types, GLOBAL, typestab, &symroot);
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foreach(identifiers, GLOBAL, typestab, &symroot);
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src.file = firstfile;
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src.x = 0;
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src.y = lineno;
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if ((glevel > 2 || xref) && IR->stabend)
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(*IR->stabend)(&src, symroot,
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ltov(&loci, PERM),
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ltov(&symbols, PERM), NULL);
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else if (IR->stabend)
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(*IR->stabend)(&src, NULL, NULL, NULL, NULL);
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}
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finalize();
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(*IR->progend)();
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deallocate(PERM);
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return errcnt > 0;
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}
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/* main_init - process program arguments */
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void main_init(int argc, char *argv[]) {
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char *infile = NULL, *outfile = NULL;
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int i;
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static int inited;
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if (inited)
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return;
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inited = 1;
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type_init(argc, argv);
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for (i = 1; i < argc; i++)
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if (strcmp(argv[i], "-g") == 0 || strcmp(argv[i], "-g2") == 0)
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glevel = 2;
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else if (strncmp(argv[i], "-g", 2) == 0) { /* -gn[,x] */
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char *p = strchr(argv[i], ',');
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glevel = atoi(argv[i]+2);
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if (p) {
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comment = p + 1;
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if (glevel == 0)
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glevel = 1;
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if (stabIR.stabline == NULL) {
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stabIR.stabline = IR->stabline;
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stabIR.stabend = IR->stabend;
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IR->stabline = stabline;
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IR->stabend = stabend;
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}
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}
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} else if (strcmp(argv[i], "-x") == 0)
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xref++;
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else if (strcmp(argv[i], "-A") == 0) {
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++Aflag;
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} else if (strcmp(argv[i], "-P") == 0)
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Pflag++;
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else if (strcmp(argv[i], "-w") == 0)
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wflag++;
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else if (strcmp(argv[i], "-n") == 0) {
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if (!YYnull) {
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YYnull = install(string("_YYnull"), &globals, GLOBAL, PERM);
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YYnull->type = func(voidptype, NULL, 1);
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YYnull->sclass = EXTERN;
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(*IR->defsymbol)(YYnull);
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}
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} else if (strncmp(argv[i], "-n", 2) == 0) { /* -nvalid[,check] */
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char *p = strchr(argv[i], ',');
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if (p) {
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YYcheck = install(string(p+1), &globals, GLOBAL, PERM);
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YYcheck->type = func(voidptype, NULL, 1);
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YYcheck->sclass = EXTERN;
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(*IR->defsymbol)(YYcheck);
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p = stringn(argv[i]+2, p - (argv[i]+2));
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} else
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p = string(argv[i]+2);
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YYnull = install(p, &globals, GLOBAL, PERM);
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YYnull->type = func(voidptype, NULL, 1);
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YYnull->sclass = EXTERN;
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(*IR->defsymbol)(YYnull);
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} else if (strcmp(argv[i], "-v") == 0)
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fprint(stderr, "%s %s\n", argv[0], rcsid);
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else if (strncmp(argv[i], "-s", 2) == 0)
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density = strtod(&argv[i][2], NULL);
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else if (strncmp(argv[i], "-errout=", 8) == 0) {
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FILE *f = fopen(argv[i]+8, "w");
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if (f == NULL) {
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fprint(stderr, "%s: can't write errors to `%s'\n", argv[0], argv[i]+8);
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exit(EXIT_FAILURE);
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}
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fclose(f);
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f = freopen(argv[i]+8, "w", stderr);
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assert(f);
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} else if (strncmp(argv[i], "-e", 2) == 0) {
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int x;
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if ((x = strtol(&argv[i][2], NULL, 0)) > 0)
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errlimit = x;
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} else if (strncmp(argv[i], "-little_endian=", 15) == 0)
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IR->little_endian = argv[i][15] - '0';
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else if (strncmp(argv[i], "-mulops_calls=", 18) == 0)
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IR->mulops_calls = argv[i][18] - '0';
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else if (strncmp(argv[i], "-wants_callb=", 13) == 0)
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IR->wants_callb = argv[i][13] - '0';
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else if (strncmp(argv[i], "-wants_argb=", 12) == 0)
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IR->wants_argb = argv[i][12] - '0';
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else if (strncmp(argv[i], "-left_to_right=", 15) == 0)
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IR->left_to_right = argv[i][15] - '0';
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else if (strncmp(argv[i], "-wants_dag=", 11) == 0)
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IR->wants_dag = argv[i][11] - '0';
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else if (*argv[i] != '-' || strcmp(argv[i], "-") == 0) {
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if (infile == NULL)
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infile = argv[i];
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else if (outfile == NULL)
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outfile = argv[i];
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}
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if (infile != NULL && strcmp(infile, "-") != 0
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&& freopen(infile, "r", stdin) == NULL) {
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fprint(stderr, "%s: can't read `%s'\n", argv[0], infile);
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exit(EXIT_FAILURE);
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}
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if (outfile != NULL && strcmp(outfile, "-") != 0
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&& freopen(outfile, "w", stdout) == NULL) {
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fprint(stderr, "%s: can't write `%s'\n", argv[0], outfile);
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exit(EXIT_FAILURE);
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}
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}
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/* typestab - emit stab entries for p */
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static void typestab(Symbol p, void *cl) {
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if (*(Symbol *)cl == 0 && p->sclass && p->sclass != TYPEDEF)
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*(Symbol *)cl = p;
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if ((p->sclass == TYPEDEF || p->sclass == 0) && IR->stabtype)
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(*IR->stabtype)(p);
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}
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/* stabline - emit source code for source coordinate *cp */
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static void stabline(Coordinate *cp) {
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if (cp->file && cp->file != currentfile) {
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if (srcfp)
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fclose(srcfp);
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currentfile = cp->file;
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srcfp = fopen(currentfile, "r");
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srcpos = 0;
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currentline = 0;
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}
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if (currentline != cp->y && srcfp) {
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char buf[512];
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if (srcpos > cp->y) {
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rewind(srcfp);
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srcpos = 0;
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}
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for ( ; srcpos < cp->y; srcpos++)
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if (fgets(buf, sizeof buf, srcfp) == NULL) {
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fclose(srcfp);
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srcfp = NULL;
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break;
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}
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if (srcfp && srcpos == cp->y)
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print("%s%s", comment, buf);
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}
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currentline = cp->y;
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if (stabIR.stabline)
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(*stabIR.stabline)(cp);
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}
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static void stabend(Coordinate *cp, Symbol p, Coordinate **cpp, Symbol *sp, Symbol *stab) {
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if (stabIR.stabend)
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(*stabIR.stabend)(cp, p, cpp, sp, stab);
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if (srcfp)
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fclose(srcfp);
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}
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