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[/] [eco32/] [trunk/] [lcc/] [src/] [profio.c] - Blame information for rev 128

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/* C compiler: prof.out input
 
prof.out format:
#files
    name
    ... (#files-1 times)
#functions
    name file# x y count caller file x y
    ... (#functions-1 times)
#points
    file# x y count
    ... (#points-1 times)
*/
#include "c.h"
 
static char rcsid[] = "$Id: profio.c,v 1.1 2002/08/28 23:12:45 drh Exp $";
 
struct count {                  /* count data: */
        int x, y;                       /* source coordinate */
        int count;                      /* associated execution count */
};
 
#define MAXTOKEN 64
 
struct file {                   /* per-file prof.out data: */
        struct file *link;              /* link to next file */
        char *name;                     /* file name */
        int size;                       /* size of counts[] */
        int count;                      /* counts[0..count-1] hold valid data */
        struct count *counts;           /* count data */
        struct func {                   /* function data: */
                struct func *link;              /* link to next function */
                char *name;                     /* function name */
                struct count count;             /* total number of calls */
                struct caller {         /* caller data: */
                        struct caller *link;    /* link to next caller */
                        char *name;             /* caller's name */
                        char *file;             /* call site: file, x, y */
                        int x, y;
                        int count;              /* number of calls from this site */
                } *callers;
        } *funcs;                       /* list of functions */
} *filelist;
FILE *fp;
 
/* acaller - add caller and site (file,x,y) to callee's callers list */
static void acaller(char *caller, char *file, int x, int y, int count, struct func *callee) {
        struct caller *q;
 
        assert(callee);
        for (q = callee->callers; q && (caller != q->name
                || file != q->file || x != q->x || y != q->y); q = q->link)
                ;
        if (!q) {
                struct caller **r;
                NEW(q, PERM);
                q->name = caller;
                q->file = file;
                q->x = x;
                q->y = y;
                q->count = 0;
                for (r = &callee->callers; *r && (strcmp(q->name, (*r)->name) > 0
                        || strcmp(q->file, (*r)->file) > 0 || q->y > (*r)->y || q->y > (*r)->y); r = &(*r)->link)
                        ;
                q->link = *r;
                *r = q;
        }
        q->count += count;
}
 
/* compare - return <0, 0, >0 if a<b, a==b, a>b, resp. */
static int compare(const void *x, const void *y) {
        struct count *a = (struct count *)x, *b = (struct count *)y;
 
        if (a->y == b->y)
                return a->x - b->x;
        return a->y - b->y;
}
 
/* findfile - return file name's file list entry, or 0 */
static struct file *findfile(char *name) {
        struct file *p;
 
        for (p = filelist; p; p = p->link)
                if (p->name == name)
                        return p;
        return 0;
}
 
/* afunction - add function name and its data to file's function list */
static struct func *afunction(char *name, char *file, int x, int y, int count) {
        struct file *p = findfile(file);
        struct func *q;
 
        assert(p);
        for (q = p->funcs; q && name != q->name; q = q->link)
                ;
        if (!q) {
                struct func **r;
                NEW(q, PERM);
                q->name = name;
                q->count.x = x;
                q->count.y = y;
                q->count.count = 0;
                q->callers = 0;
                for (r = &p->funcs; *r && compare(&q->count, &(*r)->count) > 0; r = &(*r)->link)
                        ;
                q->link = *r;
                *r = q;
        }
        q->count.count += count;
        return q;
}
 
/* apoint - append execution point i to file's data */
static void apoint(int i, char *file, int x, int y, int count) {
        struct file *p = findfile(file);
 
        assert(p);
        if (i >= p->size) {
                int j;
                if (p->size == 0) {
                        p->size = i >= 200 ? 2*i : 200;
                        p->counts = newarray(p->size, sizeof *p->counts, PERM);
                } else {
                        struct count *new;
                        p->size = 2*i;
                        new = newarray(p->size, sizeof *new, PERM);
                        for (j = 0; j < p->count; j++)
                                new[j] = p->counts[j];
                        p->counts = new;
                }
                for (j = p->count; j < p->size; j++) {
                        static struct count z;
                        p->counts[j] = z;
                }
        }
        if (p->counts[i].x != x || p->counts[i].y != y)
                for (i = 0; i < p->count; i++)
                        if (p->counts[i].x == x && p->counts[i].y == y)
                                break;
        if (i >= p->count)
                if (i >= p->size)
                        apoint(i, file, x, y, count);
                else {
                        p->count = i + 1;
                        p->counts[i].x = x;
                        p->counts[i].y = y;
                        p->counts[i].count = count;
                }
        else
                p->counts[i].count += count;
}
 
/* findcount - return count associated with (file,x,y) or -1 */
int findcount(char *file, int x, int y) {
        static struct file *cursor;
 
        if (cursor == 0 || cursor->name != file)
                cursor = findfile(file);
        if (cursor) {
                int l, u;
                struct count *c = cursor->counts;
                for (l = 0, u = cursor->count - 1; l <= u; ) {
                        int k = (l + u)/2;
                        if (c[k].y > y || c[k].y == y && c[k].x > x)
                                u = k - 1;
                        else if (c[k].y < y || c[k].y == y && c[k].x < x)
                                l = k + 1;
                        else
                                return c[k].count;
                }
        }
        return -1;
}
 
/* findfunc - return count associated with function name in file or -1 */
int findfunc(char *name, char *file) {
        static struct file *cursor;
 
        if (cursor == 0 || cursor->name != file)
                cursor = findfile(file);
        if (cursor) {
                struct func *p;
                for (p = cursor->funcs; p; p = p->link)
                        if (p->name == name)
                                return p->count.count;
        }
        return -1;
}
 
/* getd - read a nonnegative number */
static int getd(void) {
        int c, n = 0;
 
        while ((c = getc(fp)) != EOF && (c == ' ' || c == '\n' || c == '\t'))
                ;
        if (c >= '0' && c <= '9') {
                do
                        n = 10*n + (c - '0');
                while ((c = getc(fp)) >= '0' && c <= '9');
                return n;
        }
        return -1;
}
 
/* getstr - read a string */
static char *getstr(void) {
        int c;
        char buf[MAXTOKEN], *s = buf;
 
        while ((c = getc(fp)) != EOF && c != ' ' && c != '\n' && c != '\t')
                if (s - buf < (int)sizeof buf - 2)
                        *s++ = c;
        *s = 0;
        return s == buf ? (char *)0 : string(buf);
}
 
/* gather - read prof.out data from fd */
static int gather(void) {
        int i, nfiles, nfuncs, npoints;
        char *files[64];
 
        if ((nfiles = getd()) < 0)
                return 0;
        assert(nfiles < NELEMS(files));
        for (i = 0; i < nfiles; i++) {
                if ((files[i] = getstr()) == 0)
                        return -1;
                if (!findfile(files[i])) {
                        struct file *new;
                        NEW(new, PERM);
                        new->name = files[i];
                        new->size = new->count = 0;
                        new->counts = 0;
                        new->funcs = 0;
                        new->link = filelist;
                        filelist = new;
                }
        }
        if ((nfuncs = getd()) < 0)
                return -1;
        for (i = 0; i < nfuncs; i++) {
                struct func *q;
                char *name, *file;
                int f, x, y, count;
                if ((name = getstr()) == 0 || (f = getd()) <= 0
                || (x = getd()) < 0 || (y = getd()) < 0 || (count = getd()) < 0)
                        return -1;
                q = afunction(name, files[f-1], x, y, count);
                if ((name = getstr()) == 0 || (file = getstr()) == 0
                || (x = getd()) < 0 || (y = getd()) < 0)
                        return -1;
                if (*name != '?')
                        acaller(name, file, x, y, count, q);
        }
        if ((npoints = getd()) < 0)
                return -1;
        for (i = 0; i < npoints; i++) {
                int f, x, y, count;
                if ((f = getd()) < 0 || (x = getd()) < 0 || (y = getd()) < 0
                || (count = getd()) < 0)
                        return -1;
                if (f)
                        apoint(i, files[f-1], x, y, count);
        }
        return 1;
}
 
/* process - read prof.out data from file */
int process(char *file) {
        int more;
 
        if ((fp = fopen(file, "r")) != NULL) {
                struct file *p;
                while ((more = gather()) > 0)
                        ;
                fclose(fp);
                if (more < 0)
                        return more;
                for (p = filelist; p; p = p->link)
                        qsort(p->counts, p->count, sizeof *p->counts, compare);
                return 1;
        }
        return 0;
}

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[/] [eco32/] [trunk/] [lcc/] [src/] [profio.c] - Blame information for rev 128

Line No.	Rev	Author	Line
1	4	hellwig	`/* C compiler: prof.out input`
2
3			`prof.out format:`
4			`#files`
5			`name`
6			`... (#files-1 times)`
7			`#functions`
8			`name file# x y count caller file x y`
9			`... (#functions-1 times)`
10			`#points`
11			`file# x y count`
12			`... (#points-1 times)`
13			`*/`
14			`#include "c.h"`
15
16			`static char rcsid[] = "$Id: profio.c,v 1.1 2002/08/28 23:12:45 drh Exp $";`
17
18			`struct count { /* count data: */`
19			`int x, y; /* source coordinate */`
20			`int count; /* associated execution count */`
21			`};`
22
23			`#define MAXTOKEN 64`
24
25			`struct file { /* per-file prof.out data: */`
26			`struct file link; / link to next file */`
27			`char name; / file name */`
28			`int size; /* size of counts[] */`
29			`int count; /* counts[0..count-1] hold valid data */`
30			`struct count counts; / count data */`
31			`struct func { /* function data: */`
32			`struct func link; / link to next function */`
33			`char name; / function name */`
34			`struct count count; /* total number of calls */`
35			`struct caller { /* caller data: */`
36			`struct caller link; / link to next caller */`
37			`char name; / caller's name */`
38			`char file; / call site: file, x, y */`
39			`int x, y;`
40			`int count; /* number of calls from this site */`
41			`} *callers;`
42			`} funcs; / list of functions */`
43			`} *filelist;`
44			`FILE *fp;`
45
46			`/* acaller - add caller and site (file,x,y) to callee's callers list */`
47			`static void acaller(char caller, char file, int x, int y, int count, struct func *callee) {`
48			`struct caller *q;`
49
50			`assert(callee);`
51			`for (q = callee->callers; q && (caller != q->name`
52			`\|\| file != q->file \|\| x != q->x \|\| y != q->y); q = q->link)`
53			`;`
54			`if (!q) {`
55			`struct caller **r;`
56			`NEW(q, PERM);`
57			`q->name = caller;`
58			`q->file = file;`
59			`q->x = x;`
60			`q->y = y;`
61			`q->count = 0;`
62			`for (r = &callee->callers; r && (strcmp(q->name, (r)->name) > 0`
63			`\|\| strcmp(q->file, (r)->file) > 0 \|\| q->y > (r)->y \|\| q->y > (r)->y); r = &(r)->link)`
64			`;`
65			`q->link = *r;`
66			`*r = q;`
67			`}`
68			`q->count += count;`
69			`}`
70
71			`/* compare - return <0, 0, >0 if a<b, a==b, a>b, resp. */`
72			`static int compare(const void x, const void y) {`
73			`struct count a = (struct count )x, b = (struct count )y;`
74
75			`if (a->y == b->y)`
76			`return a->x - b->x;`
77			`return a->y - b->y;`
78			`}`
79
80			`/* findfile - return file name's file list entry, or 0 */`
81			`static struct file findfile(char name) {`
82			`struct file *p;`
83
84			`for (p = filelist; p; p = p->link)`
85			`if (p->name == name)`
86			`return p;`
87			`return 0;`
88			`}`
89
90			`/* afunction - add function name and its data to file's function list */`
91			`static struct func afunction(char name, char *file, int x, int y, int count) {`
92			`struct file *p = findfile(file);`
93			`struct func *q;`
94
95			`assert(p);`
96			`for (q = p->funcs; q && name != q->name; q = q->link)`
97			`;`
98			`if (!q) {`
99			`struct func **r;`
100			`NEW(q, PERM);`
101			`q->name = name;`
102			`q->count.x = x;`
103			`q->count.y = y;`
104			`q->count.count = 0;`
105			`q->callers = 0;`
106			`for (r = &p->funcs; r && compare(&q->count, &(r)->count) > 0; r = &(*r)->link)`
107			`;`
108			`q->link = *r;`
109			`*r = q;`
110			`}`
111			`q->count.count += count;`
112			`return q;`
113			`}`
114
115			`/* apoint - append execution point i to file's data */`
116			`static void apoint(int i, char *file, int x, int y, int count) {`
117			`struct file *p = findfile(file);`
118
119			`assert(p);`
120			`if (i >= p->size) {`
121			`int j;`
122			`if (p->size == 0) {`
123			`p->size = i >= 200 ? 2*i : 200;`
124			`p->counts = newarray(p->size, sizeof *p->counts, PERM);`
125			`} else {`
126			`struct count *new;`
127			`p->size = 2*i;`
128			`new = newarray(p->size, sizeof *new, PERM);`
129			`for (j = 0; j < p->count; j++)`
130			`new[j] = p->counts[j];`
131			`p->counts = new;`
132			`}`
133			`for (j = p->count; j < p->size; j++) {`
134			`static struct count z;`
135			`p->counts[j] = z;`
136			`}`
137			`}`
138			`if (p->counts[i].x != x \|\| p->counts[i].y != y)`
139			`for (i = 0; i < p->count; i++)`
140			`if (p->counts[i].x == x && p->counts[i].y == y)`
141			`break;`
142			`if (i >= p->count)`
143			`if (i >= p->size)`
144			`apoint(i, file, x, y, count);`
145			`else {`
146			`p->count = i + 1;`
147			`p->counts[i].x = x;`
148			`p->counts[i].y = y;`
149			`p->counts[i].count = count;`
150			`}`
151			`else`
152			`p->counts[i].count += count;`
153			`}`
154
155			`/* findcount - return count associated with (file,x,y) or -1 */`
156			`int findcount(char *file, int x, int y) {`
157			`static struct file *cursor;`
158
159			`if (cursor == 0 \|\| cursor->name != file)`
160			`cursor = findfile(file);`
161			`if (cursor) {`
162			`int l, u;`
163			`struct count *c = cursor->counts;`
164			`for (l = 0, u = cursor->count - 1; l <= u; ) {`
165			`int k = (l + u)/2;`
166			`if (c[k].y > y \|\| c[k].y == y && c[k].x > x)`
167			`u = k - 1;`
168			`else if (c[k].y < y \|\| c[k].y == y && c[k].x < x)`
169			`l = k + 1;`
170			`else`
171			`return c[k].count;`
172			`}`
173			`}`
174			`return -1;`
175			`}`
176
177			`/* findfunc - return count associated with function name in file or -1 */`
178			`int findfunc(char name, char file) {`
179			`static struct file *cursor;`
180
181			`if (cursor == 0 \|\| cursor->name != file)`
182			`cursor = findfile(file);`
183			`if (cursor) {`
184			`struct func *p;`
185			`for (p = cursor->funcs; p; p = p->link)`
186			`if (p->name == name)`
187			`return p->count.count;`
188			`}`
189			`return -1;`
190			`}`
191
192			`/* getd - read a nonnegative number */`
193			`static int getd(void) {`
194			`int c, n = 0;`
195
196			`while ((c = getc(fp)) != EOF && (c == ' ' \|\| c == '\n' \|\| c == '\t'))`
197			`;`
198			`if (c >= '0' && c <= '9') {`
199			`do`
200			`n = 10*n + (c - '0');`
201			`while ((c = getc(fp)) >= '0' && c <= '9');`
202			`return n;`
203			`}`
204			`return -1;`
205			`}`
206
207			`/* getstr - read a string */`
208			`static char *getstr(void) {`
209			`int c;`
210			`char buf[MAXTOKEN], *s = buf;`
211
212			`while ((c = getc(fp)) != EOF && c != ' ' && c != '\n' && c != '\t')`
213			`if (s - buf < (int)sizeof buf - 2)`
214			`*s++ = c;`
215			`*s = 0;`
216			`return s == buf ? (char *)0 : string(buf);`
217			`}`
218
219			`/* gather - read prof.out data from fd */`
220			`static int gather(void) {`
221			`int i, nfiles, nfuncs, npoints;`
222			`char *files[64];`
223
224			`if ((nfiles = getd()) < 0)`
225			`return 0;`
226			`assert(nfiles < NELEMS(files));`
227			`for (i = 0; i < nfiles; i++) {`
228			`if ((files[i] = getstr()) == 0)`
229			`return -1;`
230			`if (!findfile(files[i])) {`
231			`struct file *new;`
232			`NEW(new, PERM);`
233			`new->name = files[i];`
234			`new->size = new->count = 0;`
235			`new->counts = 0;`
236			`new->funcs = 0;`
237			`new->link = filelist;`
238			`filelist = new;`
239			`}`
240			`}`
241			`if ((nfuncs = getd()) < 0)`
242			`return -1;`
243			`for (i = 0; i < nfuncs; i++) {`
244			`struct func *q;`
245			`char name, file;`
246			`int f, x, y, count;`
247			`if ((name = getstr()) == 0 \|\| (f = getd()) <= 0`
248			`\|\| (x = getd()) < 0 \|\| (y = getd()) < 0 \|\| (count = getd()) < 0)`
249			`return -1;`
250			`q = afunction(name, files[f-1], x, y, count);`
251			`if ((name = getstr()) == 0 \|\| (file = getstr()) == 0`
252			`\|\| (x = getd()) < 0 \|\| (y = getd()) < 0)`
253			`return -1;`
254			`if (*name != '?')`
255			`acaller(name, file, x, y, count, q);`
256			`}`
257			`if ((npoints = getd()) < 0)`
258			`return -1;`
259			`for (i = 0; i < npoints; i++) {`
260			`int f, x, y, count;`
261			`if ((f = getd()) < 0 \|\| (x = getd()) < 0 \|\| (y = getd()) < 0`
262			`\|\| (count = getd()) < 0)`
263			`return -1;`
264			`if (f)`
265			`apoint(i, files[f-1], x, y, count);`
266			`}`
267			`return 1;`
268			`}`
269
270			`/* process - read prof.out data from file */`
271			`int process(char *file) {`
272			`int more;`
273
274			`if ((fp = fopen(file, "r")) != NULL) {`
275			`struct file *p;`
276			`while ((more = gather()) > 0)`
277			`;`
278			`fclose(fp);`
279			`if (more < 0)`
280			`return more;`
281			`for (p = filelist; p; p = p->link)`
282			`qsort(p->counts, p->count, sizeof *p->counts, compare);`
283			`return 1;`
284			`}`
285			`return 0;`
286			`}`