[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/util-linux/readprofile.c b/ap/app/busybox/src/util-linux/readprofile.c
new file mode 100644
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+++ b/ap/app/busybox/src/util-linux/readprofile.c
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+/* vi: set sw=4 ts=4: */
+/*
+ * readprofile.c - used to read /proc/profile
+ *
+ * Copyright (C) 1994,1996 Alessandro Rubini (rubini@ipvvis.unipv.it)
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+
+/*
+ * 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
+ * 3Feb2001 Andrew Morton <andrewm@uow.edu.au>
+ * - -M option to write profile multiplier.
+ * 2001-11-07 Werner Almesberger <wa@almesberger.net>
+ * - byte order auto-detection and -n option
+ * 2001-11-09 Werner Almesberger <wa@almesberger.net>
+ * - skip step size (index 0)
+ * 2002-03-09 John Levon <moz@compsoc.man.ac.uk>
+ * - make maplineno do something
+ * 2002-11-28 Mads Martin Joergensen +
+ * - also try /boot/System.map-`uname -r`
+ * 2003-04-09 Werner Almesberger <wa@almesberger.net>
+ * - fixed off-by eight error and improved heuristics in byte order detection
+ * 2003-08-12 Nikita Danilov <Nikita@Namesys.COM>
+ * - added -s option; example of use:
+ * "readprofile -s -m /boot/System.map-test | grep __d_lookup | sort -n -k3"
+ *
+ * Taken from util-linux and adapted for busybox by
+ * Paul Mundt <lethal@linux-sh.org>.
+ */
+
+//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>
+
+#define S_LEN 128
+
+/* These are the defaults */
+static const char defaultmap[] ALIGN1 = "/boot/System.map";
+static const char defaultpro[] ALIGN1 = "/proc/profile";
+
+int readprofile_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int readprofile_main(int argc UNUSED_PARAM, char **argv)
+{
+ FILE *map;
+ 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 */
+ char fn_name[S_LEN], next_name[S_LEN]; /* current and next name */
+ char mapline[S_LEN];
+ 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;
+
+ opt_complementary = "M+"; /* -M N */
+ opt = getopt32(argv, "M:m:p:nabsirv", &multiplier, &mapFile, &proFile);
+
+ 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
+ */
+ 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
+ */
+ len = MAXINT(ssize_t);
+ buf = xmalloc_xopen_read_close(proFile, &len);
+ if (!optNative) {
+ int entries = len / sizeof(*buf);
+ int big = 0, small = 0, i;
+ unsigned *p;
+
+ for (p = buf+1; p < buf+entries; p++) {
+ if (*p & ~0U << (sizeof(*buf)*4))
+ big++;
+ if (*p & ((1 << (sizeof(*buf)*4))-1))
+ small++;
+ }
+ if (big > small) {
+ 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;
+ unsigned char tmp;
+
+ tmp = b[i];
+ b[i] = b[sizeof(*buf)-i-1];
+ b[sizeof(*buf)-i-1] = tmp;
+ }
+ }
+ }
+
+ step = buf[0];
+ if (optInfo) {
+ printf("Sampling_step: %i\n", step);
+ return EXIT_SUCCESS;
+ }
+
+ total = 0;
+
+ map = xfopen_for_read(mapFile);
+
+ 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);
+
+ if (!strcmp(fn_name, "_stext")) /* only elf works like this */ {
+ add0 = fn_add;
+ break;
+ }
+ maplineno++;
+ }
+
+ if (!add0)
+ bb_error_msg_and_die("can't find \"_stext\" in %s", mapFile);
+
+ /*
+ * Main loop.
+ */
+ while (fgets(mapline, S_LEN, map)) {
+ unsigned int this = 0;
+
+ if (sscanf(mapline, "%llx %s %s", &next_add, mode, next_name) != 3)
+ bb_error_msg_and_die("%s(%i): wrong map line",
+ 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 (indx >= len / sizeof(*buf))
+ bb_error_msg_and_die("profile address out of range. "
+ "Wrong map file?");
+
+ while (indx < (next_add-add0)/step) {
+ if (optBins && (buf[indx] || optAll)) {
+ if (!header_printed) {
+ printf("%s:\n", fn_name);
+ header_printed = 1;
+ }
+ printf("\t%"PRIx64"\t%u\n", (indx - 1)*step + add0, buf[indx]);
+ }
+ this += buf[indx++];
+ }
+ total += this;
+
+ 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
+ ) {
+ if (optVerbose)
+ printf("%016llx %-40s %6i %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);
+ if (optSub) {
+ unsigned long long scan;
+
+ for (scan = (fn_add-add0)/step + 1;
+ scan < (next_add-add0)/step; scan++) {
+ unsigned long long addr;
+
+ addr = (scan - 1)*step + add0;
+ printf("\t%#llx\t%s+%#llx\t%u\n",
+ addr, fn_name, addr - fn_add,
+ buf[scan]);
+ }
+ }
+ }
+
+ fn_add = next_add;
+ strcpy(fn_name, next_name);
+
+ maplineno++;
+ }
+
+ /* clock ticks, out of kernel text - probably modules */
+ printf("%6i %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));
+ else
+ printf("%6i %-40s %8.4f\n",
+ total, "total", total/(double)(fn_add-add0));
+
+ fclose(map);
+ free(buf);
+
+ return EXIT_SUCCESS;
+}