*
* Copyright (C) 1994,1996 Alessandro Rubini (rubini@ipvvis.unipv.it)
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
/*
- * 1999-02-22 Arkadiusz MiΒΆkiewicz <misiek@pld.ORG.PL>
+ * 1999-02-22 Arkadiusz Mickiewicz <misiek@pld.ORG.PL>
* - added Native Language Support
* 1999-09-01 Stephane Eranian <eranian@cello.hpl.hp.com>
* - 64bit clean patch
* Paul Mundt <lethal@linux-sh.org>.
*/
-#include <errno.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
+//usage:#define readprofile_trivial_usage
+//usage: "[OPTIONS]"
+//usage:#define readprofile_full_usage "\n\n"
+//usage: " -m mapfile (Default: /boot/System.map)"
+//usage: "\n -p profile (Default: /proc/profile)"
+//usage: "\n -M NUM Set the profiling multiplier to NUM"
+//usage: "\n -i Print only info about the sampling step"
+//usage: "\n -v Verbose"
+//usage: "\n -a Print all symbols, even if count is 0"
+//usage: "\n -b Print individual histogram-bin counts"
+//usage: "\n -s Print individual counters within functions"
+//usage: "\n -r Reset all the counters (root only)"
+//usage: "\n -n Disable byte order auto-detection"
+
+#include "libbb.h"
#include <sys/utsname.h>
-#include "busybox.h"
-
#define S_LEN 128
/* These are the defaults */
-static const char defaultmap[]="/boot/System.map";
-static const char defaultpro[]="/proc/profile";
+static const char defaultmap[] ALIGN1 = "/boot/System.map";
+static const char defaultpro[] ALIGN1 = "/proc/profile";
-int readprofile_main(int argc, char **argv)
+int readprofile_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int readprofile_main(int argc UNUSED_PARAM, char **argv)
{
FILE *map;
- int proFd;
- const char *mapFile, *proFile, *mult=0;
- unsigned long len=0, indx=1;
- unsigned long long add0=0;
+ const char *mapFile, *proFile;
+ unsigned long indx = 1;
+ size_t len;
+ uint64_t add0 = 0;
unsigned int step;
unsigned int *buf, total, fn_len;
- unsigned long long fn_add, next_add; /* current and next address */
+ unsigned long long fn_add, next_add; /* current and next address */
char fn_name[S_LEN], next_name[S_LEN]; /* current and next name */
- char mode[8];
- int c;
- int optAll=0, optInfo=0, optReset=0, optVerbose=0, optNative=0;
- int optBins=0, optSub=0;
char mapline[S_LEN];
- int maplineno=1;
+ char mode[8];
+ int maplineno = 1;
int header_printed;
+ int multiplier = 0;
+ unsigned opt;
+ enum {
+ OPT_M = (1 << 0),
+ OPT_m = (1 << 1),
+ OPT_p = (1 << 2),
+ OPT_n = (1 << 3),
+ OPT_a = (1 << 4),
+ OPT_b = (1 << 5),
+ OPT_s = (1 << 6),
+ OPT_i = (1 << 7),
+ OPT_r = (1 << 8),
+ OPT_v = (1 << 9),
+ };
+#define optMult (opt & OPT_M)
+#define optNative (opt & OPT_n)
+#define optAll (opt & OPT_a)
+#define optBins (opt & OPT_b)
+#define optSub (opt & OPT_s)
+#define optInfo (opt & OPT_i)
+#define optReset (opt & OPT_r)
+#define optVerbose (opt & OPT_v)
#define next (current^1)
proFile = defaultpro;
mapFile = defaultmap;
- while ((c = getopt(argc, argv, "M:m:np:itvarVbs")) != -1) {
- switch(c) {
- case 'm':
- mapFile = optarg;
- break;
- case 'n':
- optNative++;
- break;
- case 'p':
- proFile = optarg;
- break;
- case 'a':
- optAll++;
- break;
- case 'b':
- optBins++;
- break;
- case 's':
- optSub++;
- break;
- case 'i':
- optInfo++;
- break;
- case 'M':
- mult = optarg;
- break;
- case 'r':
- optReset++;
- break;
- case 'v':
- optVerbose++;
- break;
- default:
- bb_show_usage();
- }
- }
+ opt_complementary = "M+"; /* -M N */
+ opt = getopt32(argv, "M:m:p:nabsirv", &multiplier, &mapFile, &proFile);
- if (optReset || mult) {
- int multiplier, fd, to_write;
+ if (opt & (OPT_M|OPT_r)) { /* mult or reset, or both */
+ int fd, to_write;
/*
* When writing the multiplier, if the length of the write is
* not sizeof(int), the multiplier is not changed
*/
- if (mult) {
- multiplier = strtoul(mult, 0, 10);
- to_write = sizeof(int);
- } else {
- multiplier = 0;
- to_write = 1; /* sth different from sizeof(int) */
- }
-
- fd = bb_xopen(defaultpro,O_WRONLY);
-
- if (write(fd, &multiplier, to_write) != to_write)
- bb_perror_msg_and_die("error writing %s", defaultpro);
+ to_write = sizeof(int);
+ if (!optMult)
+ to_write = 1; /* sth different from sizeof(int) */
+ fd = xopen(defaultpro, O_WRONLY);
+ xwrite(fd, &multiplier, to_write);
close(fd);
return EXIT_SUCCESS;
}
/*
* Use an fd for the profiling buffer, to skip stdio overhead
*/
-
- proFd = bb_xopen(proFile,O_RDONLY);
-
- if (((int)(len=lseek(proFd,0,SEEK_END)) < 0)
- || (lseek(proFd,0,SEEK_SET) < 0))
- bb_perror_msg_and_die(proFile);
-
- buf = xmalloc(len);
-
- if (read(proFd,buf,len) != len)
- bb_perror_msg_and_die(proFile);
-
- close(proFd);
-
+ len = MAXINT(ssize_t);
+ buf = xmalloc_xopen_read_close(proFile, &len);
if (!optNative) {
- int entries = len/sizeof(*buf);
- int big = 0,small = 0,i;
+ int entries = len / sizeof(*buf);
+ int big = 0, small = 0, i;
unsigned *p;
for (p = buf+1; p < buf+entries; p++) {
small++;
}
if (big > small) {
- bb_error_msg("Assuming reversed byte order. "
- "Use -n to force native byte order.");
+ bb_error_msg("assuming reversed byte order, "
+ "use -n to force native byte order");
for (p = buf; p < buf+entries; p++)
for (i = 0; i < sizeof(*buf)/2; i++) {
unsigned char *b = (unsigned char *) p;
step = buf[0];
if (optInfo) {
- printf("Sampling_step: %i\n", step);
+ printf("Sampling_step: %u\n", step);
return EXIT_SUCCESS;
}
total = 0;
- map = bb_xfopen(mapFile, "r");
+ map = xfopen_for_read(mapFile);
- while (fgets(mapline,S_LEN,map)) {
- if (sscanf(mapline,"%llx %s %s",&fn_add,mode,fn_name) != 3)
+ while (fgets(mapline, S_LEN, map)) {
+ if (sscanf(mapline, "%llx %s %s", &fn_add, mode, fn_name) != 3)
bb_error_msg_and_die("%s(%i): wrong map line",
- mapFile, maplineno);
+ mapFile, maplineno);
- if (!strcmp(fn_name,"_stext")) /* only elf works like this */ {
+ if (!strcmp(fn_name, "_stext")) /* only elf works like this */ {
add0 = fn_add;
break;
}
/*
* Main loop.
*/
- while (fgets(mapline,S_LEN,map)) {
+ while (fgets(mapline, S_LEN, map)) {
unsigned int this = 0;
- if (sscanf(mapline,"%llx %s %s",&next_add,mode,next_name) != 3)
+ if (sscanf(mapline, "%llx %s %s", &next_add, mode, next_name) != 3)
bb_error_msg_and_die("%s(%i): wrong map line",
- mapFile, maplineno);
+ mapFile, maplineno);
header_printed = 0;
/* ignore any LEADING (before a '[tT]' symbol is found)
Absolute symbols */
if ((*mode == 'A' || *mode == '?') && total == 0) continue;
- if (*mode != 'T' && *mode != 't' &&
- *mode != 'W' && *mode != 'w')
- break; /* only text is profiled */
+ if (*mode != 'T' && *mode != 't'
+ && *mode != 'W' && *mode != 'w'
+ ) {
+ break; /* only text is profiled */
+ }
if (indx >= len / sizeof(*buf))
bb_error_msg_and_die("profile address out of range. "
- "Wrong map file?");
+ "Wrong map file?");
while (indx < (next_add-add0)/step) {
if (optBins && (buf[indx] || optAll)) {
if (!header_printed) {
- printf ("%s:\n", fn_name);
+ printf("%s:\n", fn_name);
header_printed = 1;
}
- printf ("\t%llx\t%u\n", (indx - 1)*step + add0, buf[indx]);
+ printf("\t%"PRIx64"\t%u\n", (indx - 1)*step + add0, buf[indx]);
}
this += buf[indx++];
}
if (optBins) {
if (optVerbose || this > 0)
- printf (" total\t\t\t\t%u\n", this);
- } else if ((this || optAll) &&
- (fn_len = next_add-fn_add) != 0) {
+ printf(" total\t\t\t\t%u\n", this);
+ } else if ((this || optAll)
+ && (fn_len = next_add-fn_add) != 0
+ ) {
if (optVerbose)
- printf("%016llx %-40s %6i %8.4f\n", fn_add,
- fn_name,this,this/(double)fn_len);
+ printf("%016llx %-40s %6u %8.4f\n", fn_add,
+ fn_name, this, this/(double)fn_len);
else
- printf("%6i %-40s %8.4f\n",
- this,fn_name,this/(double)fn_len);
+ printf("%6u %-40s %8.4f\n",
+ this, fn_name, this/(double)fn_len);
if (optSub) {
unsigned long long scan;
addr = (scan - 1)*step + add0;
printf("\t%#llx\t%s+%#llx\t%u\n",
- addr, fn_name, addr - fn_add,
- buf[scan]);
+ addr, fn_name, addr - fn_add,
+ buf[scan]);
}
}
}
fn_add = next_add;
- strcpy(fn_name,next_name);
+ strcpy(fn_name, next_name);
maplineno++;
}
/* clock ticks, out of kernel text - probably modules */
- printf("%6i %s\n", buf[len/sizeof(*buf)-1], "*unknown*");
+ printf("%6u %s\n", buf[len/sizeof(*buf)-1], "*unknown*");
/* trailer */
if (optVerbose)
- printf("%016x %-40s %6i %8.4f\n",
- 0,"total",total,total/(double)(fn_add-add0));
+ printf("%016x %-40s %6u %8.4f\n",
+ 0, "total", total, total/(double)(fn_add-add0));
else
- printf("%6i %-40s %8.4f\n",
- total,"total",total/(double)(fn_add-add0));
+ printf("%6u %-40s %8.4f\n",
+ total, "total", total/(double)(fn_add-add0));
fclose(map);
free(buf);
projects / platform / upstream / busybox.git / blobdiff