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[/] [eco32/] [trunk/] [lcc/] [src/] [main.c] - Blame information for rev 256

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#include "c.h"
 
static char rcsid[] = "$Name: v4_2 $($Id: main.c,v 1.1 2002/08/28 23:12:44 drh Exp $)";
 
static void typestab(Symbol, void *);
 
static void stabline(Coordinate *);
static void stabend(Coordinate *, Symbol, Coordinate **, Symbol *, Symbol *);
Interface *IR = NULL;
 
int Aflag;              /* >= 0 if -A specified */
int Pflag;              /* != 0 if -P specified */
int glevel;             /* == [0-9] if -g[0-9] specified */
int xref;               /* != 0 for cross-reference data */
Symbol YYnull;          /* _YYnull  symbol if -n or -nvalidate specified */
Symbol YYcheck;         /* _YYcheck symbol if -nvalidate,check specified */
 
static char *comment;
static Interface stabIR;
static char *currentfile;       /* current file name */
static int currentline;         /* current line number */
static FILE *srcfp;             /* stream for current file, if non-NULL */
static int srcpos;              /* position of srcfp, if srcfp is non-NULL */
int main(int argc, char *argv[]) {
        int i, j;
        for (i = argc - 1; i > 0; i--)
                if (strncmp(argv[i], "-target=", 8) == 0)
                        break;
        if (i > 0) {
                char *s = strchr(argv[i], '\\');
                if (s != NULL)
                        *s = '/';
                for (j = 0; bindings[j].name && bindings[j].ir; j++)
                        if (strcmp(&argv[i][8], bindings[j].name) == 0) {
                                IR = bindings[j].ir;
                                break;
                        }
                if (s != NULL)
                        *s = '\\';
        }
        if (!IR) {
                fprint(stderr, "%s: unknown target", argv[0]);
                if (i > 0)
                        fprint(stderr, " `%s'", &argv[i][8]);
                fprint(stderr, "; must specify one of\n");
                for (i = 0; bindings[i].name; i++)
                        fprint(stderr, "\t-target=%s\n", bindings[i].name);
                exit(EXIT_FAILURE);
        }
        init(argc, argv);
        t = gettok();
        (*IR->progbeg)(argc, argv);
        for (i = 1; i < argc; i++)
                if (strcmp(argv[i], "-n") == 0) {
                        if (!YYnull) {
                                YYnull = install(string("_YYnull"), &globals, GLOBAL, PERM);
                                YYnull->type = func(voidptype, NULL, 1);
                                YYnull->sclass = EXTERN;
                                (*IR->defsymbol)(YYnull);
                        }
                } else if (strncmp(argv[i], "-n", 2) == 0) {     /* -nvalid[,check] */
                        char *p = strchr(argv[i], ',');
                        if (p) {
                                YYcheck = install(string(p+1), &globals, GLOBAL, PERM);
                                YYcheck->type = func(voidptype, NULL, 1);
                                YYcheck->sclass = EXTERN;
                                (*IR->defsymbol)(YYcheck);
                                p = stringn(argv[i]+2, p - (argv[i]+2));
                        } else
                                p = string(argv[i]+2);
                        YYnull = install(p, &globals, GLOBAL, PERM);
                        YYnull->type = func(voidptype, NULL, 1);
                        YYnull->sclass = EXTERN;
                        (*IR->defsymbol)(YYnull);
                } else {
                        profInit(argv[i]);
                        traceInit(argv[i]);
                }
        if (glevel && IR->stabinit)
                (*IR->stabinit)(firstfile, argc, argv);
        program();
        if (events.end)
                apply(events.end, NULL, NULL);
        memset(&events, 0, sizeof events);
        if (glevel || xref) {
                Symbol symroot = NULL;
                Coordinate src;
                foreach(types,       GLOBAL, typestab, &symroot);
                foreach(identifiers, GLOBAL, typestab, &symroot);
                src.file = firstfile;
                src.x = 0;
                src.y = lineno;
                if ((glevel > 2 || xref) && IR->stabend)
                        (*IR->stabend)(&src, symroot,
                                ltov(&loci,    PERM),
                                ltov(&symbols, PERM), NULL);
                else if (IR->stabend)
                        (*IR->stabend)(&src, NULL, NULL, NULL, NULL);
        }
        finalize();
        (*IR->progend)();
        deallocate(PERM);
        return errcnt > 0;
}
/* main_init - process program arguments */
void main_init(int argc, char *argv[]) {
        char *infile = NULL, *outfile = NULL;
        int i;
        static int inited;
 
        if (inited)
                return;
        inited = 1;
        type_init(argc, argv);
        for (i = 1; i < argc; i++)
                if (strcmp(argv[i], "-g") == 0 || strcmp(argv[i], "-g2") == 0)
                        glevel = 2;
                else if (strncmp(argv[i], "-g", 2) == 0) {       /* -gn[,x] */
                        char *p = strchr(argv[i], ',');
                        glevel = atoi(argv[i]+2);
                        if (p) {
                                comment = p + 1;
                                if (glevel == 0)
                                        glevel = 1;
                                if (stabIR.stabline == NULL) {
                                        stabIR.stabline = IR->stabline;
                                        stabIR.stabend = IR->stabend;
                                        IR->stabline = stabline;
                                        IR->stabend = stabend;
                                }
                        }
                } else if (strcmp(argv[i], "-x") == 0)
                        xref++;
                else if (strcmp(argv[i], "-A") == 0) {
                        ++Aflag;
                } else if (strcmp(argv[i], "-P") == 0)
                        Pflag++;
                else if (strcmp(argv[i], "-w") == 0)
                        wflag++;
                else if (strcmp(argv[i], "-v") == 0)
                        fprint(stderr, "%s %s\n", argv[0], rcsid);
                else if (strncmp(argv[i], "-s", 2) == 0)
                        density = strtod(&argv[i][2], NULL);
                else if (strncmp(argv[i], "-errout=", 8) == 0) {
                        FILE *f = fopen(argv[i]+8, "w");
                        if (f == NULL) {
                                fprint(stderr, "%s: can't write errors to `%s'\n", argv[0], argv[i]+8);
                                exit(EXIT_FAILURE);
                        }
                        fclose(f);
                        f = freopen(argv[i]+8, "w", stderr);
                        assert(f);
                } else if (strncmp(argv[i], "-e", 2) == 0) {
                        int x;
                        if ((x = strtol(&argv[i][2], NULL, 0)) > 0)
                                errlimit = x;
                } else if (strncmp(argv[i], "-little_endian=", 15) == 0)
                        IR->little_endian = argv[i][15] - '0';
                else if (strncmp(argv[i], "-mulops_calls=", 18) == 0)
                        IR->mulops_calls = argv[i][18] - '0';
                else if (strncmp(argv[i], "-wants_callb=", 13) == 0)
                        IR->wants_callb = argv[i][13] - '0';
                else if (strncmp(argv[i], "-wants_argb=", 12) == 0)
                        IR->wants_argb = argv[i][12] - '0';
                else if (strncmp(argv[i], "-left_to_right=", 15) == 0)
                        IR->left_to_right = argv[i][15] - '0';
                else if (strncmp(argv[i], "-wants_dag=", 11) == 0)
                        IR->wants_dag = argv[i][11] - '0';
                else if (*argv[i] != '-' || strcmp(argv[i], "-") == 0) {
                        if (infile == NULL)
                                infile = argv[i];
                        else if (outfile == NULL)
                                outfile = argv[i];
                }
 
        if (infile != NULL && strcmp(infile, "-") != 0
        && freopen(infile, "r", stdin) == NULL) {
                fprint(stderr, "%s: can't read `%s'\n", argv[0], infile);
                exit(EXIT_FAILURE);
        }
        if (outfile != NULL && strcmp(outfile, "-") != 0
        && freopen(outfile, "w", stdout) == NULL) {
                fprint(stderr, "%s: can't write `%s'\n", argv[0], outfile);
                exit(EXIT_FAILURE);
        }
}
/* typestab - emit stab entries for p */
static void typestab(Symbol p, void *cl) {
        if (*(Symbol *)cl == 0 && p->sclass && p->sclass != TYPEDEF)
                *(Symbol *)cl = p;
        if ((p->sclass == TYPEDEF || p->sclass == 0) && IR->stabtype)
                (*IR->stabtype)(p);
}
 
/* stabline - emit source code for source coordinate *cp */
static void stabline(Coordinate *cp) {
        if (cp->file && cp->file != currentfile) {
                if (srcfp)
                        fclose(srcfp);
                currentfile = cp->file;
                srcfp = fopen(currentfile, "r");
                srcpos = 0;
                currentline = 0;
        }
        if (currentline != cp->y && srcfp) {
                char buf[512];
                if (srcpos > cp->y) {
                        rewind(srcfp);
                        srcpos = 0;
                }
                for ( ; srcpos < cp->y; srcpos++)
                        if (fgets(buf, sizeof buf, srcfp) == NULL) {
                                fclose(srcfp);
                                srcfp = NULL;
                                break;
                        }
                if (srcfp && srcpos == cp->y)
                        print("%s%s", comment, buf);
        }
        currentline = cp->y;
        if (stabIR.stabline)
                (*stabIR.stabline)(cp);
}
 
static void stabend(Coordinate *cp, Symbol p, Coordinate **cpp, Symbol *sp, Symbol *stab) {
        if (stabIR.stabend)
                (*stabIR.stabend)(cp, p, cpp, sp, stab);
        if (srcfp)
                fclose(srcfp);
}

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Subversion Repositories eco32

[/] [eco32/] [trunk/] [lcc/] [src/] [main.c] - Blame information for rev 256

Line No.	Rev	Author	Line
1	4	hellwig	`#include "c.h"`
2
3			`static char rcsid[] = "$Name: v4_2 $($Id: main.c,v 1.1 2002/08/28 23:12:44 drh Exp $)";`
4
5			`static void typestab(Symbol, void *);`
6
7			`static void stabline(Coordinate *);`
8			`static void stabend(Coordinate , Symbol, Coordinate , Symbol , Symbol *);`
9			`Interface *IR = NULL;`
10
11			`int Aflag; /* >= 0 if -A specified */`
12			`int Pflag; /* != 0 if -P specified */`
13			`int glevel; /* == [0-9] if -g[0-9] specified */`
14			`int xref; /* != 0 for cross-reference data */`
15			`Symbol YYnull; /* _YYnull symbol if -n or -nvalidate specified */`
16			`Symbol YYcheck; /* _YYcheck symbol if -nvalidate,check specified */`
17
18			`static char *comment;`
19			`static Interface stabIR;`
20			`static char currentfile; / current file name */`
21			`static int currentline; /* current line number */`
22			`static FILE srcfp; / stream for current file, if non-NULL */`
23			`static int srcpos; /* position of srcfp, if srcfp is non-NULL */`
24			`int main(int argc, char *argv[]) {`
25			`int i, j;`
26			`for (i = argc - 1; i > 0; i--)`
27			`if (strncmp(argv[i], "-target=", 8) == 0)`
28			`break;`
29			`if (i > 0) {`
30			`char *s = strchr(argv[i], '\\');`
31			`if (s != NULL)`
32			`*s = '/';`
33			`for (j = 0; bindings[j].name && bindings[j].ir; j++)`
34			`if (strcmp(&argv[i][8], bindings[j].name) == 0) {`
35			`IR = bindings[j].ir;`
36			`break;`
37			`}`
38			`if (s != NULL)`
39			`*s = '\\';`
40			`}`
41			`if (!IR) {`
42			`fprint(stderr, "%s: unknown target", argv[0]);`
43			`if (i > 0)`
44			fprint(stderr, " `%s'", &argv[i][8]);
45			`fprint(stderr, "; must specify one of\n");`
46			`for (i = 0; bindings[i].name; i++)`
47			`fprint(stderr, "\t-target=%s\n", bindings[i].name);`
48			`exit(EXIT_FAILURE);`
49			`}`
50			`init(argc, argv);`
51			`t = gettok();`
52			`(*IR->progbeg)(argc, argv);`
53			`for (i = 1; i < argc; i++)`
54			`if (strcmp(argv[i], "-n") == 0) {`
55			`if (!YYnull) {`
56			`YYnull = install(string("_YYnull"), &globals, GLOBAL, PERM);`
57			`YYnull->type = func(voidptype, NULL, 1);`
58			`YYnull->sclass = EXTERN;`
59			`(*IR->defsymbol)(YYnull);`
60			`}`
61			`} else if (strncmp(argv[i], "-n", 2) == 0) { /* -nvalid[,check] */`
62			`char *p = strchr(argv[i], ',');`
63			`if (p) {`
64			`YYcheck = install(string(p+1), &globals, GLOBAL, PERM);`
65			`YYcheck->type = func(voidptype, NULL, 1);`
66			`YYcheck->sclass = EXTERN;`
67			`(*IR->defsymbol)(YYcheck);`
68			`p = stringn(argv[i]+2, p - (argv[i]+2));`
69			`} else`
70			`p = string(argv[i]+2);`
71			`YYnull = install(p, &globals, GLOBAL, PERM);`
72			`YYnull->type = func(voidptype, NULL, 1);`
73			`YYnull->sclass = EXTERN;`
74			`(*IR->defsymbol)(YYnull);`
75			`} else {`
76			`profInit(argv[i]);`
77			`traceInit(argv[i]);`
78			`}`
79			`if (glevel && IR->stabinit)`
80			`(*IR->stabinit)(firstfile, argc, argv);`
81			`program();`
82			`if (events.end)`
83			`apply(events.end, NULL, NULL);`
84			`memset(&events, 0, sizeof events);`
85			`if (glevel \|\| xref) {`
86			`Symbol symroot = NULL;`
87			`Coordinate src;`
88			`foreach(types, GLOBAL, typestab, &symroot);`
89			`foreach(identifiers, GLOBAL, typestab, &symroot);`
90			`src.file = firstfile;`
91			`src.x = 0;`
92			`src.y = lineno;`
93			`if ((glevel > 2 \|\| xref) && IR->stabend)`
94			`(*IR->stabend)(&src, symroot,`
95			`ltov(&loci, PERM),`
96			`ltov(&symbols, PERM), NULL);`
97			`else if (IR->stabend)`
98			`(*IR->stabend)(&src, NULL, NULL, NULL, NULL);`
99			`}`
100			`finalize();`
101			`(*IR->progend)();`
102			`deallocate(PERM);`
103			`return errcnt > 0;`
104			`}`
105			`/* main_init - process program arguments */`
106			`void main_init(int argc, char *argv[]) {`
107			`char infile = NULL, outfile = NULL;`
108			`int i;`
109			`static int inited;`
110
111			`if (inited)`
112			`return;`
113			`inited = 1;`
114			`type_init(argc, argv);`
115			`for (i = 1; i < argc; i++)`
116			`if (strcmp(argv[i], "-g") == 0 \|\| strcmp(argv[i], "-g2") == 0)`
117			`glevel = 2;`
118			`else if (strncmp(argv[i], "-g", 2) == 0) { /* -gn[,x] */`
119			`char *p = strchr(argv[i], ',');`
120			`glevel = atoi(argv[i]+2);`
121			`if (p) {`
122			`comment = p + 1;`
123			`if (glevel == 0)`
124			`glevel = 1;`
125			`if (stabIR.stabline == NULL) {`
126			`stabIR.stabline = IR->stabline;`
127			`stabIR.stabend = IR->stabend;`
128			`IR->stabline = stabline;`
129			`IR->stabend = stabend;`
130			`}`
131			`}`
132			`} else if (strcmp(argv[i], "-x") == 0)`
133			`xref++;`
134			`else if (strcmp(argv[i], "-A") == 0) {`
135			`++Aflag;`
136			`} else if (strcmp(argv[i], "-P") == 0)`
137			`Pflag++;`
138			`else if (strcmp(argv[i], "-w") == 0)`
139			`wflag++;`
140			`else if (strcmp(argv[i], "-v") == 0)`
141			`fprint(stderr, "%s %s\n", argv[0], rcsid);`
142			`else if (strncmp(argv[i], "-s", 2) == 0)`
143			`density = strtod(&argv[i][2], NULL);`
144			`else if (strncmp(argv[i], "-errout=", 8) == 0) {`
145			`FILE *f = fopen(argv[i]+8, "w");`
146			`if (f == NULL) {`
147			fprint(stderr, "%s: can't write errors to `%s'\n", argv[0], argv[i]+8);
148			`exit(EXIT_FAILURE);`
149			`}`
150			`fclose(f);`
151			`f = freopen(argv[i]+8, "w", stderr);`
152			`assert(f);`
153			`} else if (strncmp(argv[i], "-e", 2) == 0) {`
154			`int x;`
155			`if ((x = strtol(&argv[i][2], NULL, 0)) > 0)`
156			`errlimit = x;`
157			`} else if (strncmp(argv[i], "-little_endian=", 15) == 0)`
158			`IR->little_endian = argv[i][15] - '0';`
159			`else if (strncmp(argv[i], "-mulops_calls=", 18) == 0)`
160			`IR->mulops_calls = argv[i][18] - '0';`
161			`else if (strncmp(argv[i], "-wants_callb=", 13) == 0)`
162			`IR->wants_callb = argv[i][13] - '0';`
163			`else if (strncmp(argv[i], "-wants_argb=", 12) == 0)`
164			`IR->wants_argb = argv[i][12] - '0';`
165			`else if (strncmp(argv[i], "-left_to_right=", 15) == 0)`
166			`IR->left_to_right = argv[i][15] - '0';`
167			`else if (strncmp(argv[i], "-wants_dag=", 11) == 0)`
168			`IR->wants_dag = argv[i][11] - '0';`
169			`else if (*argv[i] != '-' \|\| strcmp(argv[i], "-") == 0) {`
170			`if (infile == NULL)`
171			`infile = argv[i];`
172			`else if (outfile == NULL)`
173			`outfile = argv[i];`
174			`}`
175
176			`if (infile != NULL && strcmp(infile, "-") != 0`
177			`&& freopen(infile, "r", stdin) == NULL) {`
178			fprint(stderr, "%s: can't read `%s'\n", argv[0], infile);
179			`exit(EXIT_FAILURE);`
180			`}`
181			`if (outfile != NULL && strcmp(outfile, "-") != 0`
182			`&& freopen(outfile, "w", stdout) == NULL) {`
183			fprint(stderr, "%s: can't write `%s'\n", argv[0], outfile);
184			`exit(EXIT_FAILURE);`
185			`}`
186			`}`
187			`/* typestab - emit stab entries for p */`
188			`static void typestab(Symbol p, void *cl) {`
189			`if ((Symbol )cl == 0 && p->sclass && p->sclass != TYPEDEF)`
190			`(Symbol )cl = p;`
191			`if ((p->sclass == TYPEDEF \|\| p->sclass == 0) && IR->stabtype)`
192			`(*IR->stabtype)(p);`
193			`}`
194
195			`/* stabline - emit source code for source coordinate cp /`
196			`static void stabline(Coordinate *cp) {`
197			`if (cp->file && cp->file != currentfile) {`
198			`if (srcfp)`
199			`fclose(srcfp);`
200			`currentfile = cp->file;`
201			`srcfp = fopen(currentfile, "r");`
202			`srcpos = 0;`
203			`currentline = 0;`
204			`}`
205			`if (currentline != cp->y && srcfp) {`
206			`char buf[512];`
207			`if (srcpos > cp->y) {`
208			`rewind(srcfp);`
209			`srcpos = 0;`
210			`}`
211			`for ( ; srcpos < cp->y; srcpos++)`
212			`if (fgets(buf, sizeof buf, srcfp) == NULL) {`
213			`fclose(srcfp);`
214			`srcfp = NULL;`
215			`break;`
216			`}`
217			`if (srcfp && srcpos == cp->y)`
218			`print("%s%s", comment, buf);`
219			`}`
220			`currentline = cp->y;`
221			`if (stabIR.stabline)`
222			`(*stabIR.stabline)(cp);`
223			`}`
224
225			`static void stabend(Coordinate cp, Symbol p, Coordinate cpp, Symbol sp, Symbol *stab) {`
226			`if (stabIR.stabend)`
227			`(*stabIR.stabend)(cp, p, cpp, sp, stab);`
228			`if (srcfp)`
229			`fclose(srcfp);`
230			`}`