mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-11 02:56:06 +00:00
864 lines
23 KiB
C++
864 lines
23 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "leaky.h"
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#include "intcnt.h"
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#include <sys/types.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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#ifndef NTO
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#include <getopt.h>
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#endif
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#include <assert.h>
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#include <stdlib.h>
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#include <stdio.h>
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#ifdef NTO
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#include <mem.h>
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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#ifndef TRUE
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#define TRUE 1
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#endif
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static const u_int DefaultBuckets = 10007; // arbitrary, but prime
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static const u_int MaxBuckets = 1000003; // arbitrary, but prime
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//----------------------------------------------------------------------
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int main(int argc, char** argv)
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{
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leaky* l = new leaky;
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l->initialize(argc, argv);
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l->outputfd = stdout;
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for (int i = 0; i < l->numLogFiles; i++) {
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if (l->output_dir || l->numLogFiles > 1) {
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char name[2048]; // XXX fix
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if (l->output_dir)
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snprintf(name,sizeof(name),"%s/%s.html",l->output_dir,argv[l->logFileIndex + i]);
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else
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snprintf(name,sizeof(name),"%s.html",argv[l->logFileIndex + i]);
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fprintf(stderr,"opening %s\n",name);
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l->outputfd = fopen(name,"w");
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// if an error we won't process the file
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}
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if (l->outputfd) { // paranoia
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l->open(argv[l->logFileIndex + i]);
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if (l->outputfd != stderr) {
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fclose(l->outputfd);
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l->outputfd = nullptr;
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}
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}
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}
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return 0;
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}
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char *
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htmlify(const char *in)
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{
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const char *p = in;
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char *out, *q;
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int n = 0;
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size_t newlen;
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// Count the number of '<' and '>' in the input.
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while ((p = strpbrk(p, "<>")))
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{
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++n;
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++p;
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}
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// Knowing the number of '<' and '>', we can calculate the space
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// needed for the output string.
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newlen = strlen(in) + n * 3 + 1;
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out = new char[newlen];
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// Copy the input to the output, with substitutions.
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p = in;
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q = out;
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do
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{
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if (*p == '<')
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{
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strcpy(q, "<");
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q += 4;
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}
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else if (*p == '>')
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{
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strcpy(q, ">");
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q += 4;
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}
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else
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{
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*q++ = *p;
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}
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p++;
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} while (*p);
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*q = '\0';
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return out;
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}
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leaky::leaky()
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{
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applicationName = nullptr;
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progFile = nullptr;
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quiet = true;
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showAddress = false;
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showThreads = false;
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stackDepth = 100000;
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onlyThread = 0;
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cleo = false;
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mappedLogFile = -1;
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firstLogEntry = lastLogEntry = 0;
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sfd = -1;
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externalSymbols = 0;
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usefulSymbols = 0;
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numExternalSymbols = 0;
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lowestSymbolAddr = 0;
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highestSymbolAddr = 0;
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loadMap = nullptr;
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collect_last = false;
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collect_start = -1;
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collect_end = -1;
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}
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leaky::~leaky()
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{
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}
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void leaky::usageError()
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{
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fprintf(stderr, "Usage: %s [-v] [-t] [-e exclude] [-i include] [-s stackdepth] [--last] [--all] [--start n [--end m]] [--cleo] [--output-dir dir] prog log [log2 ...]\n", (char*) applicationName);
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fprintf(stderr,
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"\t-v: verbose\n"
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"\t-t | --threads: split threads\n"
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"\t--only-thread n: only profile thread N\n"
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"\t-i include-id: stack must include specified id\n"
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"\t-e exclude-id: stack must NOT include specified id\n"
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"\t-s stackdepth: Limit depth looked at from captured stack frames\n"
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"\t--last: only profile the last capture section\n"
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"\t--start n [--end m]: profile n to m (or end) capture sections\n"
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"\t--cleo: format output for 'cleopatra' display\n"
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"\t--output-dir dir: write output files to dir\n"
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"\tIf there's one log, output goes to stdout unless --output-dir is set\n"
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"\tIf there are more than one log, output files will be named with .html added\n"
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);
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exit(-1);
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}
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static struct option longopts[] = {
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{ "threads", 0, nullptr, 't' },
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{ "only-thread", 1, nullptr, 'T' },
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{ "last", 0, nullptr, 'l' },
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{ "start", 1, nullptr, 'x' },
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{ "end", 1, nullptr, 'n' },
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{ "cleo",0, nullptr, 'c' },
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{ "output-dir", 1, nullptr, 'd' },
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{ nullptr, 0, nullptr, 0 },
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};
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void leaky::initialize(int argc, char** argv)
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{
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applicationName = argv[0];
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applicationName = strrchr(applicationName, '/');
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if (!applicationName) {
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applicationName = argv[0];
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} else {
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applicationName++;
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}
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int arg;
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int errflg = 0;
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int longindex = 0;
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onlyThread = 0;
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output_dir = nullptr;
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cleo = false;
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// XXX tons of cruft here left over from tracemalloc
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// XXX The -- options shouldn't need short versions, or they should be documented
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while (((arg = getopt_long(argc, argv, "adEe:gh:i:r:Rs:tT:qvx:ln:",longopts,&longindex)) != -1)) {
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switch (arg) {
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case '?':
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default:
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fprintf(stderr,"error: unknown option %c\n",optopt);
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errflg++;
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break;
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case 'a':
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break;
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case 'A': // not implemented
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showAddress = true;
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break;
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case 'c':
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cleo = true;
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break;
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case 'd':
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output_dir = optarg; // reference to an argv pointer
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break;
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case 'R':
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break;
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case 'e':
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exclusions.add(optarg);
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break;
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case 'g':
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break;
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case 'r': // not implemented
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roots.add(optarg);
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if (!includes.IsEmpty()) {
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errflg++;
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}
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break;
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case 'i':
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includes.add(optarg);
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if (!roots.IsEmpty()) {
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errflg++;
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}
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break;
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case 'h':
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break;
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case 's':
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stackDepth = atoi(optarg);
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if (stackDepth < 2) {
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stackDepth = 2;
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}
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break;
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case 'x':
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// --start
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collect_start = atoi(optarg);
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break;
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case 'n':
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// --end
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collect_end = atoi(optarg);
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break;
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case 'l':
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// --last
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collect_last = true;
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break;
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case 'q':
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break;
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case 'v':
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quiet = !quiet;
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break;
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case 't':
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showThreads = true;
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break;
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case 'T':
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showThreads = true;
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onlyThread = atoi(optarg);
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break;
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}
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}
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if (errflg || ((argc - optind) < 2)) {
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usageError();
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}
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progFile = argv[optind++];
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logFileIndex = optind;
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numLogFiles = argc - optind;
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if (!quiet)
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fprintf(stderr,"numlogfiles = %d\n",numLogFiles);
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}
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static void* mapFile(int fd, u_int flags, off_t* sz)
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{
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struct stat sb;
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if (fstat(fd, &sb) < 0) {
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perror("fstat");
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exit(-1);
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}
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void* base = mmap(0, (int)sb.st_size, flags, MAP_PRIVATE, fd, 0);
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if (!base) {
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perror("mmap");
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exit(-1);
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}
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*sz = sb.st_size;
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return base;
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}
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void leaky::LoadMap()
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{
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malloc_map_entry mme;
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char name[1000];
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if (!loadMap) {
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// all files use the same map
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int fd = ::open(M_MAPFILE, O_RDONLY);
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if (fd < 0) {
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perror("open: " M_MAPFILE);
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exit(-1);
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}
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for (;;) {
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int nb = read(fd, &mme, sizeof(mme));
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if (nb != sizeof(mme)) break;
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nb = read(fd, name, mme.nameLen);
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if (nb != (int)mme.nameLen) break;
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name[mme.nameLen] = 0;
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if (!quiet) {
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fprintf(stderr,"%s @ %lx\n", name, mme.address);
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}
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LoadMapEntry* lme = new LoadMapEntry;
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lme->address = mme.address;
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lme->name = strdup(name);
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lme->next = loadMap;
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loadMap = lme;
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}
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close(fd);
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}
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}
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void leaky::open(char *logFile)
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{
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int threadArray[100]; // should auto-expand
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int last_thread = -1;
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int numThreads = 0;
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int section = -1;
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bool collecting = false;
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LoadMap();
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setupSymbols(progFile);
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// open up the log file
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if (mappedLogFile)
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::close(mappedLogFile);
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mappedLogFile = ::open(logFile, O_RDONLY);
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if (mappedLogFile < 0) {
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perror("open");
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exit(-1);
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}
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off_t size;
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firstLogEntry = (malloc_log_entry*) mapFile(mappedLogFile, PROT_READ, &size);
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lastLogEntry = (malloc_log_entry*)((char*)firstLogEntry + size);
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if (!collect_last || collect_start < 0) {
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collecting = true;
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}
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// First, restrict it to the capture sections specified (all, last, start/end)
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// This loop walks through all the call stacks we recorded
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for (malloc_log_entry* lep=firstLogEntry;
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lep < lastLogEntry;
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lep = reinterpret_cast<malloc_log_entry*>(&lep->pcs[lep->numpcs])) {
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if (lep->flags & JP_FIRST_AFTER_PAUSE) {
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section++;
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if (collect_last) {
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firstLogEntry = lep;
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numThreads = 0;
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collecting = true;
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}
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if (collect_start == section) {
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collecting = true;
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firstLogEntry = lep;
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}
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if (collect_end == section) {
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collecting = false;
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lastLogEntry = lep;
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}
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if (!quiet)
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fprintf(stderr,"New section %d: first=%p, last=%p, collecting=%d\n",
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section,(void*)firstLogEntry,(void*)lastLogEntry,collecting);
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}
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// Capture thread info at the same time
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// Find all the threads captured
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// pthread/linux docs say the signal can be delivered to any thread in
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// the process. In practice, it appears in Linux that it's always
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// delivered to the thread that called setitimer(), and each thread can
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// have a separate itimer. There's a support library for gprof that
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// overlays pthread_create() to set timers in any threads you spawn.
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if (showThreads && collecting) {
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if (lep->thread != last_thread)
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{
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int i;
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for (i=0; i<numThreads; i++)
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{
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if (lep->thread == threadArray[i])
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break;
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}
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if (i == numThreads &&
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i < (int) (sizeof(threadArray)/sizeof(threadArray[0])))
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{
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threadArray[i] = lep->thread;
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numThreads++;
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if (!quiet)
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fprintf(stderr,"new thread %d\n",lep->thread);
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}
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}
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}
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}
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if (!quiet)
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fprintf(stderr,"Done collecting: sections %d: first=%p, last=%p, numThreads=%d\n",
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section,(void*)firstLogEntry,(void*)lastLogEntry,numThreads);
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if (!cleo) {
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fprintf(outputfd,"<html><head><title>Jprof Profile Report</title></head><body>\n");
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fprintf(outputfd,"<h1><center>Jprof Profile Report</center></h1>\n");
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}
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if (showThreads)
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{
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fprintf(stderr,"Num threads %d\n",numThreads);
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if (!cleo) {
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fprintf(outputfd,"<hr>Threads:<p><pre>\n");
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for (int i=0; i<numThreads; i++)
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{
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fprintf(outputfd," <a href=\"#thread_%d\">%d</a> ",
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threadArray[i],threadArray[i]);
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if ((i+1)%10 == 0)
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fprintf(outputfd,"<br>\n");
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}
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fprintf(outputfd,"</pre>");
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}
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for (int i=0; i<numThreads; i++)
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{
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if (!onlyThread || onlyThread == threadArray[i])
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analyze(threadArray[i]);
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}
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}
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else
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{
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analyze(0);
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}
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if (!cleo)
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fprintf(outputfd,"</pre></body></html>\n");
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}
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//----------------------------------------------------------------------
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static int symbolOrder(void const* a, void const* b)
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{
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Symbol const** ap = (Symbol const **)a;
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Symbol const** bp = (Symbol const **)b;
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return (*ap)->address == (*bp)->address ? 0 :
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((*ap)->address > (*bp)->address ? 1 : -1);
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}
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void leaky::ReadSharedLibrarySymbols()
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{
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LoadMapEntry* lme = loadMap;
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while (nullptr != lme) {
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ReadSymbols(lme->name, lme->address);
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lme = lme->next;
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}
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}
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void leaky::setupSymbols(const char *fileName)
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{
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if (usefulSymbols == 0) {
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// only read once!
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// Read in symbols from the program
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ReadSymbols(fileName, 0);
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// Read in symbols from the .so's
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ReadSharedLibrarySymbols();
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if (!quiet) {
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fprintf(stderr,"A total of %d symbols were loaded\n", usefulSymbols);
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}
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// Now sort them
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qsort(externalSymbols, usefulSymbols, sizeof(Symbol *), symbolOrder);
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lowestSymbolAddr = externalSymbols[0]->address;
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highestSymbolAddr = externalSymbols[usefulSymbols-1]->address;
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}
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}
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// Binary search the table, looking for a symbol that covers this
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// address.
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int leaky::findSymbolIndex(u_long addr)
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{
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u_int base = 0;
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u_int limit = usefulSymbols - 1;
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Symbol** end = &externalSymbols[limit];
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while (base <= limit) {
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u_int midPoint = (base + limit)>>1;
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Symbol** sp = &externalSymbols[midPoint];
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if (addr < (*sp)->address) {
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if (midPoint == 0) {
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return -1;
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}
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limit = midPoint - 1;
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} else {
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if (sp+1 < end) {
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if (addr < (*(sp+1))->address) {
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return midPoint;
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}
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} else {
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return midPoint;
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}
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base = midPoint + 1;
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}
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}
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return -1;
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}
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Symbol* leaky::findSymbol(u_long addr)
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{
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int idx = findSymbolIndex(addr);
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if(idx<0) {
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return nullptr;
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} else {
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return externalSymbols[idx];
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}
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}
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//----------------------------------------------------------------------
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bool leaky::excluded(malloc_log_entry* lep)
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{
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if (exclusions.IsEmpty()) {
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return false;
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}
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char** pcp = &lep->pcs[0];
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u_int n = lep->numpcs;
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for (u_int i = 0; i < n; i++, pcp++) {
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Symbol* sp = findSymbol((u_long) *pcp);
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if (sp && exclusions.contains(sp->name)) {
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return true;
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}
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}
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return false;
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}
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bool leaky::included(malloc_log_entry* lep)
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{
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if (includes.IsEmpty()) {
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return true;
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}
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char** pcp = &lep->pcs[0];
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u_int n = lep->numpcs;
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for (u_int i = 0; i < n; i++, pcp++) {
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Symbol* sp = findSymbol((u_long) *pcp);
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if (sp && includes.contains(sp->name)) {
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return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
void leaky::displayStackTrace(FILE* out, malloc_log_entry* lep)
|
|
{
|
|
char** pcp = &lep->pcs[0];
|
|
u_int n = (lep->numpcs < stackDepth) ? lep->numpcs : stackDepth;
|
|
for (u_int i = 0; i < n; i++, pcp++) {
|
|
u_long addr = (u_long) *pcp;
|
|
Symbol* sp = findSymbol(addr);
|
|
if (sp) {
|
|
fputs(sp->name, out);
|
|
if (showAddress) {
|
|
fprintf(out, "[%p]", (char*)addr);
|
|
}
|
|
}
|
|
else {
|
|
fprintf(out, "<%p>", (char*)addr);
|
|
}
|
|
fputc(' ', out);
|
|
}
|
|
fputc('\n', out);
|
|
}
|
|
|
|
void leaky::dumpEntryToLog(malloc_log_entry* lep)
|
|
{
|
|
printf("%ld\t", lep->delTime);
|
|
printf(" --> ");
|
|
displayStackTrace(outputfd, lep);
|
|
}
|
|
|
|
void leaky::generateReportHTML(FILE *fp, int *countArray, int count, int thread)
|
|
{
|
|
fprintf(fp,"<center>");
|
|
if (showThreads)
|
|
{
|
|
fprintf(fp,"<hr><A NAME=thread_%d><b>Thread: %d</b></A><p>",
|
|
thread,thread);
|
|
}
|
|
fprintf(fp,"<A href=#flat_%d>flat</A><b> | </b><A href=#hier_%d>hierarchical</A>",
|
|
thread,thread);
|
|
fprintf(fp,"</center><P><P><P>\n");
|
|
|
|
int totalTimerHits = count;
|
|
int *rankingTable = new int[usefulSymbols];
|
|
|
|
for(int cnt=usefulSymbols; --cnt>=0; rankingTable[cnt]=cnt);
|
|
|
|
// Drat. I would use ::qsort() but I would need a global variable and my
|
|
// intro-pascal professor threatened to flunk anyone who used globals.
|
|
// She damaged me for life :-) (That was 1986. See how much influence
|
|
// she had. I don't remember her name but I always feel guilty about globals)
|
|
|
|
// Shell Sort. 581130733 is the max 31 bit value of h = 3h+1
|
|
int mx, i, h;
|
|
for(mx=usefulSymbols/9, h=581130733; h>0; h/=3) {
|
|
if(h<mx) {
|
|
for(i = h-1; i<usefulSymbols; i++) {
|
|
int j, tmp=rankingTable[i], val = countArray[tmp];
|
|
for(j = i; (j>=h) && (countArray[rankingTable[j-h]]<val); j-=h) {
|
|
rankingTable[j] = rankingTable[j-h];
|
|
}
|
|
rankingTable[j] = tmp;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Ok, We are sorted now. Let's go through the table until we get to
|
|
// functions that were never called. Right now we don't do much inside
|
|
// this loop. Later we can get callers and callees into it like gprof
|
|
// does
|
|
fprintf(fp,
|
|
"<h2><A NAME=hier_%d></A><center><a href=\"http://mxr.mozilla.org/mozilla-central/source/tools/jprof/README.html#hier\">Hierarchical Profile</a></center></h2><hr>\n",
|
|
thread);
|
|
fprintf(fp, "<pre>\n");
|
|
fprintf(fp, "%6s %6s %4s %s\n",
|
|
"index", "Count", "Hits", "Function Name");
|
|
|
|
for(i=0; i<usefulSymbols && countArray[rankingTable[i]]>0; i++) {
|
|
Symbol **sp=&externalSymbols[rankingTable[i]];
|
|
|
|
(*sp)->cntP.printReport(fp, this, rankingTable[i], totalTimerHits);
|
|
|
|
char *symname = htmlify((*sp)->name);
|
|
fprintf(fp, "%6d %6d (%3.1f%%)%s <a name=%d>%8d (%3.1f%%)</a>%s <b>%s</b>\n",
|
|
rankingTable[i],
|
|
(*sp)->timerHit, ((*sp)->timerHit*1000/totalTimerHits)/10.0,
|
|
((*sp)->timerHit*1000/totalTimerHits)/10.0 >= 10.0 ? "" : " ",
|
|
rankingTable[i], countArray[rankingTable[i]],
|
|
(countArray[rankingTable[i]]*1000/totalTimerHits)/10.0,
|
|
(countArray[rankingTable[i]]*1000/totalTimerHits)/10.0 >= 10.0 ? "" : " ",
|
|
symname);
|
|
delete [] symname;
|
|
|
|
(*sp)->cntC.printReport(fp, this, rankingTable[i], totalTimerHits);
|
|
|
|
fprintf(fp, "<hr>\n");
|
|
}
|
|
fprintf(fp,"</pre>\n");
|
|
|
|
// OK, Now we want to print the flat profile. To do this we resort on
|
|
// the hit count.
|
|
|
|
// Cut-N-Paste Shell sort from above. The Ranking Table has already been
|
|
// populated, so we do not have to reinitialize it.
|
|
for(mx=usefulSymbols/9, h=581130733; h>0; h/=3) {
|
|
if(h<mx) {
|
|
for(i = h-1; i<usefulSymbols; i++) {
|
|
int j, tmp=rankingTable[i], val = externalSymbols[tmp]->timerHit;
|
|
for(j = i;
|
|
(j>=h) && (externalSymbols[rankingTable[j-h]]->timerHit<val); j-=h) {
|
|
rankingTable[j] = rankingTable[j-h];
|
|
}
|
|
rankingTable[j] = tmp;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Pre-count up total counter hits, to get a percentage.
|
|
// I wanted the total before walking the list, if this
|
|
// double-pass over externalSymbols gets slow we can
|
|
// do single-pass and print this out after the loop finishes.
|
|
totalTimerHits = 0;
|
|
for(i=0;
|
|
i<usefulSymbols && externalSymbols[rankingTable[i]]->timerHit>0; i++) {
|
|
Symbol **sp=&externalSymbols[rankingTable[i]];
|
|
totalTimerHits += (*sp)->timerHit;
|
|
}
|
|
if (totalTimerHits == 0)
|
|
totalTimerHits = 1;
|
|
|
|
if (totalTimerHits != count)
|
|
fprintf(stderr,"Hit count mismatch: count=%d; totalTimerHits=%d",
|
|
count,totalTimerHits);
|
|
|
|
fprintf(fp,"<h2><A NAME=flat_%d></A><center><a href=\"http://mxr.mozilla.org/mozilla-central/source/tools/jprof/README.html#flat\">Flat Profile</a></center></h2><br>\n",
|
|
thread);
|
|
fprintf(fp, "<pre>\n");
|
|
|
|
fprintf(fp, "Total hit count: %d\n", totalTimerHits);
|
|
fprintf(fp, "Count %%Total Function Name\n");
|
|
// Now loop for as long as we have timer hits
|
|
for(i=0;
|
|
i<usefulSymbols && externalSymbols[rankingTable[i]]->timerHit>0; i++) {
|
|
|
|
Symbol **sp=&externalSymbols[rankingTable[i]];
|
|
|
|
char *symname = htmlify((*sp)->name);
|
|
fprintf(fp, "<a href=\"#%d\">%3d %-2.1f %s</a>\n",
|
|
rankingTable[i], (*sp)->timerHit,
|
|
((float)(*sp)->timerHit/(float)totalTimerHits)*100.0, symname);
|
|
delete [] symname;
|
|
}
|
|
}
|
|
|
|
void leaky::analyze(int thread)
|
|
{
|
|
int *countArray = new int[usefulSymbols];
|
|
int *flagArray = new int[usefulSymbols];
|
|
|
|
//Zero our function call counter
|
|
memset(countArray, 0, sizeof(countArray[0])*usefulSymbols);
|
|
|
|
// reset hit counts
|
|
for(int i=0; i<usefulSymbols; i++) {
|
|
externalSymbols[i]->timerHit = 0;
|
|
externalSymbols[i]->regClear();
|
|
}
|
|
|
|
// The flag array is used to prevent counting symbols multiple times
|
|
// if functions are called recursively. In order to keep from having
|
|
// to zero it on each pass through the loop, we mark it with the value
|
|
// of stacks on each trip through the loop. This means we can determine
|
|
// if we have seen this symbol for this stack trace w/o having to reset
|
|
// from the prior stacktrace.
|
|
memset(flagArray, -1, sizeof(flagArray[0])*usefulSymbols);
|
|
|
|
if (cleo)
|
|
fprintf(outputfd,"m-Start\n");
|
|
|
|
// This loop walks through all the call stacks we recorded
|
|
// --last, --start and --end can restrict it, as can excludes/includes
|
|
stacks = 0;
|
|
for(malloc_log_entry* lep=firstLogEntry;
|
|
lep < lastLogEntry;
|
|
lep = reinterpret_cast<malloc_log_entry*>(&lep->pcs[lep->numpcs])) {
|
|
|
|
if ((thread != 0 && lep->thread != thread) ||
|
|
excluded(lep) || !included(lep))
|
|
{
|
|
continue;
|
|
}
|
|
|
|
++stacks; // How many stack frames did we collect
|
|
|
|
u_int n = (lep->numpcs < stackDepth) ? lep->numpcs : stackDepth;
|
|
char** pcp = &lep->pcs[n-1];
|
|
int idx=-1, parrentIdx=-1; // Init idx incase n==0
|
|
if (cleo) {
|
|
// This loop walks through every symbol in the call stack. By walking it
|
|
// backwards we know who called the function when we get there.
|
|
char type = 's';
|
|
for (int i=n-1; i>=0; --i, --pcp) {
|
|
idx = findSymbolIndex(reinterpret_cast<u_long>(*pcp));
|
|
|
|
if(idx>=0) {
|
|
// Skip over bogus __restore_rt frames that realtime profiling
|
|
// can introduce.
|
|
if (i > 0 && !strcmp(externalSymbols[idx]->name, "__restore_rt")) {
|
|
--pcp;
|
|
--i;
|
|
idx = findSymbolIndex(reinterpret_cast<u_long>(*pcp));
|
|
if (idx < 0) {
|
|
continue;
|
|
}
|
|
}
|
|
Symbol **sp=&externalSymbols[idx];
|
|
char *symname = htmlify((*sp)->name);
|
|
fprintf(outputfd,"%c-%s\n",type,symname);
|
|
delete [] symname;
|
|
}
|
|
// else can't find symbol - ignore
|
|
type = 'c';
|
|
}
|
|
} else {
|
|
// This loop walks through every symbol in the call stack. By walking it
|
|
// backwards we know who called the function when we get there.
|
|
for (int i=n-1; i>=0; --i, --pcp) {
|
|
idx = findSymbolIndex(reinterpret_cast<u_long>(*pcp));
|
|
|
|
if(idx>=0) {
|
|
// Skip over bogus __restore_rt frames that realtime profiling
|
|
// can introduce.
|
|
if (i > 0 && !strcmp(externalSymbols[idx]->name, "__restore_rt")) {
|
|
--pcp;
|
|
--i;
|
|
idx = findSymbolIndex(reinterpret_cast<u_long>(*pcp));
|
|
if (idx < 0) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// If we have not seen this symbol before count it and mark it as seen
|
|
if(flagArray[idx]!=stacks && ((flagArray[idx]=stacks) || true)) {
|
|
++countArray[idx];
|
|
}
|
|
|
|
// We know who we are and we know who our parrent is. Count this
|
|
if(parrentIdx>=0) {
|
|
externalSymbols[parrentIdx]->regChild(idx);
|
|
externalSymbols[idx]->regParrent(parrentIdx);
|
|
}
|
|
// inside if() so an unknown in the middle of a stack won't break
|
|
// the link!
|
|
parrentIdx=idx;
|
|
}
|
|
}
|
|
|
|
// idx should be the function that we were in when we received the signal.
|
|
if(idx>=0) {
|
|
++externalSymbols[idx]->timerHit;
|
|
}
|
|
|
|
}
|
|
}
|
|
if (!cleo)
|
|
generateReportHTML(outputfd, countArray, stacks, thread);
|
|
}
|
|
|
|
void FunctionCount::printReport(FILE *fp, leaky *lk, int parent, int total)
|
|
{
|
|
const char *fmt = " <A href=\"#%d\">%8d (%3.1f%%)%s %s</A>%s\n";
|
|
|
|
int nmax, tmax=((~0U)>>1);
|
|
|
|
do {
|
|
nmax=0;
|
|
for(int j=getSize(); --j>=0;) {
|
|
int cnt = getCount(j);
|
|
if(cnt==tmax) {
|
|
int idx = getIndex(j);
|
|
char *symname = htmlify(lk->indexToName(idx));
|
|
fprintf(fp, fmt, idx, getCount(j),
|
|
getCount(j)*100.0/total,
|
|
getCount(j)*100.0/total >= 10.0 ? "" : " ",
|
|
symname,
|
|
parent == idx ? " (self)" : "");
|
|
delete [] symname;
|
|
} else if(cnt<tmax && cnt>nmax) {
|
|
nmax=cnt;
|
|
}
|
|
}
|
|
} while((tmax=nmax)>0);
|
|
}
|