зеркало из https://github.com/mozilla/pjs.git
2227 строки
67 KiB
C
2227 строки
67 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is nsTraceMalloc.c/bloatblame.c code, released
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* April 19, 2000.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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* Brendan Eich, 14-April-2000
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU Public License (the "GPL"), in which case the
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* provisions of the GPL are applicable instead of those above.
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* If you wish to allow use of your version of this file only
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* under the terms of the GPL and not to allow others to use your
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* version of this file under the MPL, indicate your decision by
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* deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL. If you do not delete
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* the provisions above, a recipient may use your version of this
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* file under either the MPL or the GPL.
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*/
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#ifdef NS_TRACE_MALLOC
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/*
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* TODO:
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* - fix my_dladdr so it builds its own symbol tables from bfd
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* - extend logfile so 'F' record tells free stack
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* - diagnose rusty's SMP realloc oldsize corruption bug
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* - #ifdef __linux__/x86 and port to other platforms
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* - unify calltree with gc/boehm somehow (common utility lib?)
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*/
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <setjmp.h>
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#ifdef XP_UNIX
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#endif
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#include "plhash.h"
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#include "pratom.h"
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#include "prlog.h"
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#include "prmon.h"
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#include "prprf.h"
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#include "prenv.h"
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#include "prnetdb.h"
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#include "nsTraceMalloc.h"
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#include "nscore.h"
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#ifdef XP_WIN32
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#include "nsStackFrameWin.h"
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#include <sys/timeb.h>/*for timeb*/
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#include <sys/stat.h>/*for fstat*/
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#include <io.h> /*for write*/
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#include "nsTraceMallocCallbacks.h"
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#define WRITE_FLAGS "w"
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#endif /* WIN32 */
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#ifdef XP_UNIX
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#define WRITE_FLAGS "w"
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#ifdef MOZ_DEMANGLE_SYMBOLS
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/* From libiberty, why aren't these in <libiberty.h> ? */
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extern char *cplus_demangle(const char *, int);
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#endif
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#define DMGL_PARAMS 0x1
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#define DMGL_ANSI 0x2
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extern __ptr_t __libc_malloc(size_t);
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extern __ptr_t __libc_calloc(size_t, size_t);
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extern __ptr_t __libc_realloc(__ptr_t, size_t);
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extern void __libc_free(__ptr_t);
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/* XXX I wish dladdr could find local text symbols (static functions). */
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#define __USE_GNU 1
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#include <dlfcn.h>
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#if 1
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#define my_dladdr dladdr
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#else
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/* XXX this version, which uses libbfd, runs mozilla clean out of memory! */
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#include <bfd.h>
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#include <elf.h> /* damn dladdr ignores local symbols! */
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#include <link.h>
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extern struct link_map *_dl_loaded;
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static int my_dladdr(const void *address, Dl_info *info)
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{
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const ElfW(Addr) addr = (ElfW(Addr)) address;
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struct link_map *lib, *matchlib;
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unsigned int n, size;
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bfd *abfd;
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PTR minisyms;
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long nsyms;
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bfd_byte *mini, *endmini;
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asymbol *sym, *storage;
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bfd_vma target, symaddr;
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static const char *sname;
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/* Find the highest-addressed object not greater than address. */
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matchlib = NULL;
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for (lib = _dl_loaded; lib; lib = lib->l_next) {
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if (lib->l_addr != 0 && /* 0 means map not set up yet? */
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lib->l_addr <= addr &&
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(!matchlib || matchlib->l_addr < lib->l_addr)) {
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matchlib = lib;
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}
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}
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if (!matchlib)
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return 0;
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/*
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* We know the address lies within matchlib, if it's in any shared object.
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* Make sure it isn't past the end of matchlib's segments.
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*/
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n = (size_t) matchlib->l_phnum;
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if (n > 0) {
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do {
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--n;
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} while (matchlib->l_phdr[n].p_type != PT_LOAD);
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if (addr >= (matchlib->l_addr +
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matchlib->l_phdr[n].p_vaddr +
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matchlib->l_phdr[n].p_memsz)) {
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/* Off the end of the highest-addressed shared object. */
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return 0;
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}
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}
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/*
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* Now we know what object the address lies in. Set up info for a file
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* match, then find the greatest info->dli_saddr <= addr.
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*/
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info->dli_fname = matchlib->l_name;
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info->dli_fbase = (void*) matchlib->l_addr;
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info->dli_sname = NULL;
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info->dli_saddr = NULL;
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/* Ah, the joys of libbfd.... */
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abfd = bfd_openr(matchlib->l_name, "elf32-i386");
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if (!abfd)
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return 0;
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if (!bfd_check_format(abfd, bfd_object)) {
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printf("%s is not an object file, according to libbfd.\n",
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matchlib->l_name);
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return 0;
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}
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nsyms = bfd_read_minisymbols(abfd, 0, &minisyms, &size);
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if (nsyms < 0) {
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bfd_close(abfd);
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return 0;
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}
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if (nsyms > 0) {
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storage = bfd_make_empty_symbol(abfd);
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if (!storage) {
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bfd_close(abfd);
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return 0;
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}
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target = (bfd_vma) addr - (bfd_vma) matchlib->l_addr;
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endmini = (bfd_byte*) minisyms + nsyms * size;
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for (mini = (bfd_byte*) minisyms; mini < endmini; mini += size) {
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sym = bfd_minisymbol_to_symbol(abfd, 0, (const PTR)mini, storage);
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if (!sym) {
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bfd_close(abfd);
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return 0;
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}
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if (sym->flags & (BSF_GLOBAL | BSF_LOCAL | BSF_WEAK)) {
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symaddr = sym->value + sym->section->vma;
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if (symaddr == 0 || symaddr > target)
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continue;
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if (!info->dli_sname || info->dli_saddr < (void*) symaddr) {
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info->dli_sname = sym->name;
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info->dli_saddr = (void*) symaddr;
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}
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}
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}
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/* Emulate dladdr by allocating and owning info->dli_sname's storage. */
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if (info->dli_sname) {
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if (sname)
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__libc_free((void*) sname);
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sname = strdup(info->dli_sname);
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if (!sname)
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return 0;
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info->dli_sname = sname;
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}
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}
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bfd_close(abfd);
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return 1;
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}
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#endif /* 0 */
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#else /*NOT UNIX DEFINE OUT LIBC*/
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#define __libc_malloc(x) malloc(x)
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#define __libc_calloc(x, y) calloc(x,y)
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#define __libc_realloc(x, y) realloc(x,y)
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#define __libc_free(x) free(x)
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/*
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ok we need to load the malloc,free,realloc,calloc from the dll and store the function pointers somewhere and call them by function
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that is the only way that "I" can see to override malloc ect assuredly. all other dlls that link with this library should have their
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malloc overridden to call this one.
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*/
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typedef void * (__stdcall *MALLOCPROC)(size_t);
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typedef void * (__stdcall *REALLOCPROC)(void *, size_t);
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typedef void * (__stdcall *CALLOCPROC)(size_t,size_t);
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typedef void (__stdcall *FREEPROC)(void *);
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/*debug types*/
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#ifdef _DEBUG
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typedef void * (__stdcall *MALLOCDEBUGPROC) ( size_t, int, const char *, int);
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typedef void * (__stdcall *CALLOCDEBUGPROC) ( size_t, size_t, int, const char *, int);
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typedef void * (__stdcall *REALLOCDEBUGPROC) ( void *, size_t, int, const char *, int);
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typedef void (__stdcall *FREEDEBUGPROC) ( void *, int);
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#endif
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struct AllocationFuncs
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{
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MALLOCPROC malloc_proc;
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CALLOCPROC calloc_proc;
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REALLOCPROC realloc_proc;
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FREEPROC free_proc;
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#ifdef _DEBUG
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MALLOCDEBUGPROC malloc_debug_proc;
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CALLOCDEBUGPROC calloc_debug_proc;
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REALLOCDEBUGPROC realloc_debug_proc;
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FREEDEBUGPROC free_debug_proc;
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#endif
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int prevent_reentry;
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}gAllocFuncs;
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#endif /*!XP_UNIX*/
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typedef struct logfile logfile;
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#define STARTUP_TMBUFSIZE (16 * 1024)
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#define LOGFILE_TMBUFSIZE (16 * 1024)
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struct logfile {
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int fd;
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int lfd; /* logical fd, dense among all logfiles */
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char *buf;
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int bufsize;
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int pos;
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uint32 size;
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uint32 simsize;
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logfile *next;
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logfile **prevp;
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};
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static char default_buf[STARTUP_TMBUFSIZE];
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static logfile default_logfile = {-1, 0, default_buf, STARTUP_TMBUFSIZE, 0, 0, 0, NULL, NULL};
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static logfile *logfile_list = NULL;
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static logfile **logfile_tail = &logfile_list;
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static logfile *logfp = &default_logfile;
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static PRMonitor *tmmon = NULL;
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static char *sdlogname = NULL; /* filename for shutdown leak log */
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/*
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* This counter suppresses tracing, in case any tracing code needs to malloc,
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* and it must be tested and manipulated only within tmmon.
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*/
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static uint32 suppress_tracing = 0;
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#define TM_ENTER_MONITOR() \
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PR_BEGIN_MACRO \
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if (tmmon) \
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PR_EnterMonitor(tmmon); \
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PR_END_MACRO
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#define TM_EXIT_MONITOR() \
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PR_BEGIN_MACRO \
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if (tmmon) \
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PR_ExitMonitor(tmmon); \
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PR_END_MACRO
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/* We don't want more than 32 logfiles open at once, ok? */
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typedef uint32 lfd_set;
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#define LFD_SET_STATIC_INITIALIZER 0
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#define LFD_SET_SIZE 32
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#define LFD_ZERO(s) (*(s) = 0)
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#define LFD_BIT(i) ((uint32)1 << (i))
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#define LFD_TEST(i,s) (LFD_BIT(i) & *(s))
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#define LFD_SET(i,s) (*(s) |= LFD_BIT(i))
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#define LFD_CLR(i,s) (*(s) &= ~LFD_BIT(i))
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static logfile *get_logfile(int fd)
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{
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logfile *fp;
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int lfd;
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for (fp = logfile_list; fp; fp = fp->next) {
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if (fp->fd == fd)
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return fp;
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}
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lfd = 0;
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retry:
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for (fp = logfile_list; fp; fp = fp->next) {
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if (fp->fd == lfd) {
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if (++lfd >= LFD_SET_SIZE)
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return NULL;
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goto retry;
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}
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}
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fp = __libc_malloc(sizeof(logfile) + LOGFILE_TMBUFSIZE);
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if (!fp)
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return NULL;
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fp->fd = fd;
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fp->lfd = lfd;
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fp->buf = (char*) (fp + 1);
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fp->bufsize = LOGFILE_TMBUFSIZE;
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fp->pos = 0;
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fp->size = fp->simsize = 0;
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fp->next = NULL;
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fp->prevp = logfile_tail;
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*logfile_tail = fp;
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logfile_tail = &fp->next;
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return fp;
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}
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static void flush_logfile(logfile *fp)
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{
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int len, cnt, fd;
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char *bp;
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len = fp->pos;
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if (len == 0)
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return;
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fp->pos = 0;
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fd = fp->fd;
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if (fd >= 0) {
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fp->size += len;
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bp = fp->buf;
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do {
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cnt = write(fd, bp, len);
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if (cnt <= 0) {
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printf("### nsTraceMalloc: write failed or wrote 0 bytes!\n");
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return;
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}
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bp += cnt;
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len -= cnt;
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} while (len > 0);
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}
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fp->simsize += len;
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}
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static void log_byte(logfile *fp, char byte)
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{
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if (fp->pos == fp->bufsize)
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flush_logfile(fp);
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fp->buf[fp->pos++] = byte;
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}
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static void log_string(logfile *fp, const char *str)
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{
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int len, rem, cnt;
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len = strlen(str);
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while ((rem = fp->pos + len - fp->bufsize) > 0) {
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cnt = len - rem;
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strncpy(&fp->buf[fp->pos], str, cnt);
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str += cnt;
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fp->pos += cnt;
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flush_logfile(fp);
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len = rem;
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}
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strncpy(&fp->buf[fp->pos], str, len);
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fp->pos += len;
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/* Terminate the string. */
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log_byte(fp, '\0');
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}
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static void log_filename(logfile* aFP, const char* aFilename)
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{
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int nameLen = strlen(aFilename);
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if (512 > nameLen) {
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const char* skipTry1 = "mozilla";
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char* found = nsnull;
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char* convert = nsnull;
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char dup[512];
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strcpy(dup, aFilename);
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found = strstr(dup, skipTry1);
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if (nsnull == found) {
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found = dup;
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}
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for (convert = found; '\0' != *convert; convert++) {
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if ('\\' == *convert) {
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*convert = '/';
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}
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}
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log_string(aFP, found);
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}
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else {
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log_string(aFP, aFilename);
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}
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}
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static void log_uint32(logfile *fp, uint32 ival)
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{
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if (ival < 0x80) {
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/* 0xxx xxxx */
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log_byte(fp, (char) ival);
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} else if (ival < 0x4000) {
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/* 10xx xxxx xxxx xxxx */
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log_byte(fp, (char) ((ival >> 8) | 0x80));
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log_byte(fp, (char) (ival & 0xff));
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} else if (ival < 0x200000) {
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/* 110x xxxx xxxx xxxx xxxx xxxx */
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log_byte(fp, (char) ((ival >> 16) | 0xc0));
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log_byte(fp, (char) ((ival >> 8) & 0xff));
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log_byte(fp, (char) (ival & 0xff));
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} else if (ival < 0x10000000) {
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/* 1110 xxxx xxxx xxxx xxxx xxxx xxxx xxxx */
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log_byte(fp, (char) ((ival >> 24) | 0xe0));
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log_byte(fp, (char) ((ival >> 16) & 0xff));
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log_byte(fp, (char) ((ival >> 8) & 0xff));
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log_byte(fp, (char) (ival & 0xff));
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} else {
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/* 1111 0000 xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx */
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log_byte(fp, (char) 0xf0);
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log_byte(fp, (char) ((ival >> 24) & 0xff));
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log_byte(fp, (char) ((ival >> 16) & 0xff));
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log_byte(fp, (char) ((ival >> 8) & 0xff));
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log_byte(fp, (char) (ival & 0xff));
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}
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}
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static void log_event1(logfile *fp, char event, uint32 serial)
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{
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log_byte(fp, event);
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log_uint32(fp, (uint32) serial);
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}
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static void log_event2(logfile *fp, char event, uint32 serial, size_t size)
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{
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log_event1(fp, event, serial);
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log_uint32(fp, (uint32) size);
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}
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static void log_event3(logfile *fp, char event, uint32 serial, size_t oldsize,
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size_t size)
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{
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log_event2(fp, event, serial, oldsize);
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log_uint32(fp, (uint32) size);
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}
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static void log_event4(logfile *fp, char event, uint32 serial, uint32 ui2,
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uint32 ui3, uint32 ui4)
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{
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log_event3(fp, event, serial, ui2, ui3);
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log_uint32(fp, ui4);
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}
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static void log_event5(logfile *fp, char event, uint32 serial, uint32 ui2,
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uint32 ui3, uint32 ui4, uint32 ui5)
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{
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log_event4(fp, event, serial, ui2, ui3, ui4);
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log_uint32(fp, ui5);
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}
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static void log_event6(logfile *fp, char event, uint32 serial, uint32 ui2,
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uint32 ui3, uint32 ui4, uint32 ui5, uint32 ui6)
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{
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log_event5(fp, event, serial, ui2, ui3, ui4, ui5);
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log_uint32(fp, ui6);
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}
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static void log_event7(logfile *fp, char event, uint32 serial, uint32 ui2,
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uint32 ui3, uint32 ui4, uint32 ui5, uint32 ui6,
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uint32 ui7)
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{
|
|
log_event6(fp, event, serial, ui2, ui3, ui4, ui5, ui6);
|
|
log_uint32(fp, ui7);
|
|
}
|
|
|
|
static void log_event8(logfile *fp, char event, uint32 serial, uint32 ui2,
|
|
uint32 ui3, uint32 ui4, uint32 ui5, uint32 ui6,
|
|
uint32 ui7, uint32 ui8)
|
|
{
|
|
log_event7(fp, event, serial, ui2, ui3, ui4, ui5, ui6, ui7);
|
|
log_uint32(fp, ui8);
|
|
}
|
|
|
|
typedef struct callsite callsite;
|
|
|
|
struct callsite {
|
|
uint32 pc;
|
|
uint32 serial;
|
|
lfd_set lfdset;
|
|
char *name;
|
|
const char *library;
|
|
int offset;
|
|
callsite *parent;
|
|
callsite *siblings;
|
|
callsite *kids;
|
|
};
|
|
|
|
/* NB: these counters are incremented and decremented only within tmmon. */
|
|
static uint32 library_serial_generator = 0;
|
|
static uint32 method_serial_generator = 0;
|
|
static uint32 callsite_serial_generator = 0;
|
|
static uint32 tmstats_serial_generator = 0;
|
|
static uint32 filename_serial_generator = 0;
|
|
|
|
/* Root of the tree of callsites, the sum of all (cycle-compressed) stacks. */
|
|
static callsite calltree_root = {0, 0, LFD_SET_STATIC_INITIALIZER, NULL, NULL, 0, NULL, NULL, NULL};
|
|
|
|
/* Basic instrumentation. */
|
|
static nsTMStats tmstats = NS_TMSTATS_STATIC_INITIALIZER;
|
|
|
|
/* Parent with the most kids (tmstats.calltree_maxkids). */
|
|
static callsite *calltree_maxkids_parent;
|
|
|
|
/* Calltree leaf for path with deepest stack backtrace. */
|
|
static callsite *calltree_maxstack_top;
|
|
|
|
/* Last site (i.e., calling pc) that recurred during a backtrace. */
|
|
static callsite *last_callsite_recurrence;
|
|
|
|
static void log_tmstats(logfile *fp)
|
|
{
|
|
log_event1(fp, TM_EVENT_STATS, ++tmstats_serial_generator);
|
|
log_uint32(fp, tmstats.calltree_maxstack);
|
|
log_uint32(fp, tmstats.calltree_maxdepth);
|
|
log_uint32(fp, tmstats.calltree_parents);
|
|
log_uint32(fp, tmstats.calltree_maxkids);
|
|
log_uint32(fp, tmstats.calltree_kidhits);
|
|
log_uint32(fp, tmstats.calltree_kidmisses);
|
|
log_uint32(fp, tmstats.calltree_kidsteps);
|
|
log_uint32(fp, tmstats.callsite_recurrences);
|
|
log_uint32(fp, tmstats.backtrace_calls);
|
|
log_uint32(fp, tmstats.backtrace_failures);
|
|
log_uint32(fp, tmstats.btmalloc_failures);
|
|
log_uint32(fp, tmstats.dladdr_failures);
|
|
log_uint32(fp, tmstats.malloc_calls);
|
|
log_uint32(fp, tmstats.malloc_failures);
|
|
log_uint32(fp, tmstats.calloc_calls);
|
|
log_uint32(fp, tmstats.calloc_failures);
|
|
log_uint32(fp, tmstats.realloc_calls);
|
|
log_uint32(fp, tmstats.realloc_failures);
|
|
log_uint32(fp, tmstats.free_calls);
|
|
log_uint32(fp, tmstats.null_free_calls);
|
|
log_uint32(fp, calltree_maxkids_parent ? calltree_maxkids_parent->serial : 0);
|
|
log_uint32(fp, calltree_maxstack_top ? calltree_maxstack_top->serial : 0);
|
|
}
|
|
|
|
static void *generic_alloctable(void *pool, PRSize size)
|
|
{
|
|
return __libc_malloc(size);
|
|
}
|
|
|
|
static void generic_freetable(void *pool, void *item)
|
|
{
|
|
__libc_free(item);
|
|
}
|
|
|
|
typedef struct lfdset_entry {
|
|
PLHashEntry base;
|
|
lfd_set lfdset;
|
|
} lfdset_entry;
|
|
|
|
static PLHashEntry *lfdset_allocentry(void *pool, const void *key)
|
|
{
|
|
lfdset_entry *le = __libc_malloc(sizeof *le);
|
|
if (le)
|
|
LFD_ZERO(&le->lfdset);
|
|
return &le->base;
|
|
}
|
|
|
|
static void lfdset_freeentry(void *pool, PLHashEntry *he, PRUintn flag)
|
|
{
|
|
lfdset_entry *le;
|
|
|
|
if (flag != HT_FREE_ENTRY)
|
|
return;
|
|
le = (lfdset_entry*) he;
|
|
__libc_free((void*) le);
|
|
}
|
|
|
|
static PLHashAllocOps lfdset_hashallocops = {
|
|
generic_alloctable, generic_freetable,
|
|
lfdset_allocentry, lfdset_freeentry
|
|
};
|
|
|
|
/* Table of library pathnames mapped to to logged 'L' record serial numbers. */
|
|
static PLHashTable *libraries = NULL;
|
|
|
|
/* Table of filename pathnames mapped to logged 'G' record serial numbers. */
|
|
static PLHashTable *filenames = nsnull;
|
|
|
|
/* Table mapping method names to logged 'N' record serial numbers. */
|
|
static PLHashTable *methods = NULL;
|
|
|
|
#ifdef XP_WIN32
|
|
|
|
/*
|
|
* Realease builds seem to take more stackframes.
|
|
*/
|
|
#define MAX_STACKFRAMES 512
|
|
#define MAX_UNMANGLED_NAME_LEN 256
|
|
|
|
static callsite *calltree(int skip)
|
|
{
|
|
logfile *fp = logfp;
|
|
HANDLE myProcess;
|
|
HANDLE myThread;
|
|
CONTEXT context;
|
|
int ok, maxstack, offset;
|
|
int getSymRes = 0;
|
|
STACKFRAME frame[MAX_STACKFRAMES];
|
|
uint32 library_serial, method_serial;
|
|
int framenum;
|
|
uint32 pc;
|
|
uint32 depth, nkids;
|
|
callsite *parent, **csp, *tmp;
|
|
callsite *site = NULL;
|
|
char *demangledname;
|
|
const char *library;
|
|
IMAGEHLP_MODULE imagehelp;
|
|
char buf[sizeof(IMAGEHLP_SYMBOL) + 512];
|
|
PIMAGEHLP_SYMBOL symbol;
|
|
char *method, *slash;
|
|
PLHashNumber hash;
|
|
PLHashEntry **hep, *he;
|
|
lfdset_entry *le;
|
|
char* noname = "noname";
|
|
IMAGEHLP_LINE imagehelpLine;
|
|
const char* filename = nsnull;
|
|
uint32 linenumber = 0;
|
|
uint32 filename_serial = 0;
|
|
|
|
imagehelp.SizeOfStruct = sizeof(imagehelp);
|
|
framenum = 0;
|
|
myProcess = GetCurrentProcess();
|
|
myThread = GetCurrentThread();
|
|
|
|
ok = EnsureSymInitialized();
|
|
if (! ok)
|
|
return 0;
|
|
|
|
/*
|
|
* Get the context information for this thread. That way we will know
|
|
* where our sp, fp, pc, etc. are, and we can fill in the STACKFRAME with
|
|
* the initial values.
|
|
*/
|
|
context.ContextFlags = CONTEXT_FULL;
|
|
ok = GetThreadContext(myThread, &context);
|
|
if (! ok)
|
|
return 0;
|
|
|
|
/* Setup initial stack frame from which to walk. */
|
|
memset(&(frame[0]), 0, sizeof(frame[0]));
|
|
frame[0].AddrPC.Offset = context.Eip;
|
|
frame[0].AddrPC.Mode = AddrModeFlat;
|
|
frame[0].AddrStack.Offset = context.Esp;
|
|
frame[0].AddrStack.Mode = AddrModeFlat;
|
|
frame[0].AddrFrame.Offset = context.Ebp;
|
|
frame[0].AddrFrame.Mode = AddrModeFlat;
|
|
for (;framenum < MAX_STACKFRAMES;) {
|
|
PIMAGEHLP_SYMBOL symbol = (PIMAGEHLP_SYMBOL) buf;
|
|
if (framenum)
|
|
memcpy(&(frame[framenum]),&(frame[framenum-1]),sizeof(STACKFRAME));
|
|
|
|
ok = _StackWalk(IMAGE_FILE_MACHINE_I386,
|
|
myProcess,
|
|
myThread,
|
|
&(frame[framenum]),
|
|
&context,
|
|
0, /* read process memory hook */
|
|
_SymFunctionTableAccess, /* function table access hook */
|
|
_SymGetModuleBase, /* module base hook */
|
|
0); /* translate address hook */
|
|
|
|
if (!ok)
|
|
break;
|
|
if (skip) {
|
|
/* skip tells us to skip the first skip amount of stackframes */
|
|
skip--;
|
|
continue;
|
|
}
|
|
if (frame[framenum].AddrPC.Offset == 0)
|
|
break;
|
|
|
|
framenum++;
|
|
|
|
/*
|
|
* Time to increase the number of stack frames?
|
|
*/
|
|
PR_ASSERT(framenum < MAX_STACKFRAMES);
|
|
}
|
|
|
|
depth = framenum;
|
|
maxstack = (depth > tmstats.calltree_maxstack);
|
|
if (maxstack)
|
|
tmstats.calltree_maxstack = depth;
|
|
|
|
/* Reverse the stack again, finding and building a path in the tree. */
|
|
parent = &calltree_root;
|
|
while (0 < framenum) {
|
|
DWORD displacement;/*used for getsymfromaddr*/
|
|
|
|
pc = frame[--framenum].AddrPC.Offset;
|
|
|
|
csp = &parent->kids;
|
|
while ((site = *csp) != NULL) {
|
|
if (site->pc == pc) {
|
|
tmstats.calltree_kidhits++;
|
|
|
|
/* Put the most recently used site at the front of siblings. */
|
|
*csp = site->siblings;
|
|
site->siblings = parent->kids;
|
|
parent->kids = site;
|
|
|
|
/* Check whether we've logged for this site and logfile yet. */
|
|
if (!LFD_TEST(fp->lfd, &site->lfdset)) {
|
|
/*
|
|
* Some other logfile put this site in the calltree. We
|
|
* must log an event for site, and possibly first for its
|
|
* method and/or library. Note the code after the while
|
|
* loop that tests if (!site).
|
|
*/
|
|
break;
|
|
}
|
|
|
|
/* Site already built and logged to fp -- go up the stack. */
|
|
goto upward;
|
|
}
|
|
tmstats.calltree_kidsteps++;
|
|
csp = &site->siblings;
|
|
}
|
|
|
|
if (!site) {
|
|
tmstats.calltree_kidmisses++;
|
|
|
|
/* Check for recursion: see if pc is on our ancestor line. */
|
|
for (site = parent; site; site = site->parent) {
|
|
if (site->pc == pc) {
|
|
tmstats.callsite_recurrences++;
|
|
last_callsite_recurrence = site;
|
|
goto upward;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Not in tree at all, or not logged to fp: let's find our symbolic
|
|
* callsite info. XXX static syms are masked by nearest lower global
|
|
* Load up the info for the dll.
|
|
*/
|
|
memset(&imagehelpLine, 0, sizeof(imagehelpLine));
|
|
if (!SymGetModuleInfoEspecial(myProcess,
|
|
frame[framenum].AddrPC.Offset,
|
|
&imagehelp, &imagehelpLine)) {
|
|
library = noname;
|
|
filename = noname;
|
|
linenumber = 0;
|
|
} else {
|
|
library = imagehelp.ModuleName;
|
|
filename = imagehelpLine.FileName;
|
|
linenumber = imagehelpLine.LineNumber;
|
|
|
|
if ('\0' == filename) {
|
|
filename = noname;
|
|
linenumber = 0;
|
|
}
|
|
}
|
|
|
|
/* Check whether we need to emit a library trace record. */
|
|
library_serial = 0;
|
|
if (library) {
|
|
if (!libraries) {
|
|
libraries = PL_NewHashTable(100, PL_HashString,
|
|
PL_CompareStrings, PL_CompareValues,
|
|
&lfdset_hashallocops, NULL);
|
|
if (!libraries) {
|
|
tmstats.btmalloc_failures++;
|
|
return NULL;
|
|
}
|
|
}
|
|
hash = PL_HashString(library);
|
|
hep = PL_HashTableRawLookup(libraries, hash, library);
|
|
he = *hep;
|
|
library = strdup(library); /* strdup it always? */
|
|
if (he) {
|
|
library_serial = (uint32) he->value;
|
|
le = (lfdset_entry *) he;
|
|
if (LFD_TEST(fp->lfd, &le->lfdset)) {
|
|
/* We already logged an event on fp for this library. */
|
|
le = NULL;
|
|
}
|
|
} else {
|
|
/* library = strdup(library); */
|
|
if (library) {
|
|
library_serial = ++library_serial_generator;
|
|
he = PL_HashTableRawAdd(libraries, hep, hash, library,
|
|
(void*) library_serial);
|
|
}
|
|
if (!he) {
|
|
tmstats.btmalloc_failures++;
|
|
return NULL;
|
|
}
|
|
le = (lfdset_entry *) he;
|
|
}
|
|
if (le) {
|
|
/* Need to log an event to fp for this lib. */
|
|
slash = strrchr(library, '/');
|
|
if (slash)
|
|
library = slash + 1;
|
|
log_event1(fp, TM_EVENT_LIBRARY, library_serial);
|
|
log_string(fp, library);
|
|
LFD_SET(fp->lfd, &le->lfdset);
|
|
}
|
|
}
|
|
|
|
/* Check whether we need to emit a filename trace record. */
|
|
filename_serial = 0;
|
|
if (filename) {
|
|
if (!filenames) {
|
|
filenames = PL_NewHashTable(100, PL_HashString,
|
|
PL_CompareStrings, PL_CompareValues,
|
|
&lfdset_hashallocops, NULL);
|
|
if (nsnull == filenames) {
|
|
tmstats.btmalloc_failures++;
|
|
return nsnull;
|
|
}
|
|
}
|
|
hash = PL_HashString(filename);
|
|
hep = PL_HashTableRawLookup(filenames, hash, filename);
|
|
he = *hep;
|
|
if (he) {
|
|
filename_serial = (uint32) he->value;
|
|
le = (lfdset_entry *) he;
|
|
if (LFD_TEST(fp->lfd, &le->lfdset)) {
|
|
/* We already logged an event on fp for this filename. */
|
|
le = NULL;
|
|
}
|
|
} else {
|
|
filename = strdup(filename);
|
|
if (filename) {
|
|
filename_serial = ++filename_serial_generator;
|
|
he = PL_HashTableRawAdd(filenames, hep, hash, filename,
|
|
(void*) filename_serial);
|
|
}
|
|
if (!he) {
|
|
tmstats.btmalloc_failures++;
|
|
return NULL;
|
|
}
|
|
le = (lfdset_entry *) he;
|
|
}
|
|
if (le) {
|
|
/* Need to log an event to fp for this filename. */
|
|
log_event1(fp, TM_EVENT_FILENAME, filename_serial);
|
|
log_filename(fp, filename);
|
|
LFD_SET(fp->lfd, &le->lfdset);
|
|
}
|
|
}
|
|
|
|
symbol = (PIMAGEHLP_SYMBOL) buf;
|
|
symbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
|
|
symbol->MaxNameLength = sizeof(buf) - sizeof(IMAGEHLP_SYMBOL);
|
|
symbol->Name[symbol->MaxNameLength] = '\0';
|
|
|
|
getSymRes = _SymGetSymFromAddr(myProcess,
|
|
frame[framenum].AddrPC.Offset,
|
|
&displacement,
|
|
symbol);
|
|
|
|
/* Now find the demangled method name and pc offset in it. */
|
|
if (0 != getSymRes) {
|
|
demangledname = (char *)malloc(MAX_UNMANGLED_NAME_LEN);
|
|
if (!_SymUnDName(symbol,demangledname,MAX_UNMANGLED_NAME_LEN)) {
|
|
free(demangledname);
|
|
return 0;
|
|
}
|
|
method = demangledname;
|
|
offset = (char*)pc - (char*)(symbol->Address);
|
|
}
|
|
else {
|
|
method = noname;
|
|
offset = pc;
|
|
}
|
|
|
|
/* Emit an 'N' (for New method, 'M' is for malloc!) event if needed. */
|
|
method_serial = 0;
|
|
if (!methods) {
|
|
methods = PL_NewHashTable(10000, PL_HashString,
|
|
PL_CompareStrings, PL_CompareValues,
|
|
&lfdset_hashallocops, NULL);
|
|
if (!methods) {
|
|
tmstats.btmalloc_failures++;
|
|
if (method != noname) {
|
|
free((void*) method);
|
|
}
|
|
return NULL;
|
|
}
|
|
}
|
|
hash = PL_HashString(method);
|
|
hep = PL_HashTableRawLookup(methods, hash, method);
|
|
he = *hep;
|
|
if (he) {
|
|
method_serial = (uint32) he->value;
|
|
if (method != noname) {
|
|
free((void*) method);
|
|
}
|
|
method = (char *) he->key;
|
|
le = (lfdset_entry *) he;
|
|
if (LFD_TEST(fp->lfd, &le->lfdset)) {
|
|
/* We already logged an event on fp for this method. */
|
|
le = NULL;
|
|
}
|
|
} else {
|
|
method_serial = ++method_serial_generator;
|
|
he = PL_HashTableRawAdd(methods, hep, hash, method,
|
|
(void*) method_serial);
|
|
if (!he) {
|
|
tmstats.btmalloc_failures++;
|
|
if (method != noname) {
|
|
free((void*) method);
|
|
}
|
|
return NULL;
|
|
}
|
|
le = (lfdset_entry *) he;
|
|
}
|
|
if (le) {
|
|
log_event4(fp, TM_EVENT_METHOD, method_serial, library_serial, filename_serial, linenumber);
|
|
log_string(fp, method);
|
|
LFD_SET(fp->lfd, &le->lfdset);
|
|
}
|
|
|
|
/* Create a new callsite record. */
|
|
if (!site) {
|
|
site = malloc(sizeof(callsite));
|
|
if (!site) {
|
|
tmstats.btmalloc_failures++;
|
|
return NULL;
|
|
}
|
|
|
|
/* Update parent and max-kids-per-parent stats. */
|
|
if (!parent->kids)
|
|
tmstats.calltree_parents++;
|
|
nkids = 1;
|
|
for (tmp = parent->kids; tmp; tmp = tmp->siblings)
|
|
nkids++;
|
|
if (nkids > tmstats.calltree_maxkids) {
|
|
tmstats.calltree_maxkids = nkids;
|
|
calltree_maxkids_parent = parent;
|
|
}
|
|
|
|
/* Insert the new site into the tree. */
|
|
site->pc = pc;
|
|
site->serial = ++callsite_serial_generator;
|
|
LFD_ZERO(&site->lfdset);
|
|
site->name = method;
|
|
site->offset = offset;
|
|
site->parent = parent;
|
|
site->siblings = parent->kids;
|
|
site->library = library;
|
|
parent->kids = site;
|
|
site->kids = NULL;
|
|
}
|
|
|
|
/* Log the site with its parent, method, and offset. */
|
|
log_event4(fp, TM_EVENT_CALLSITE, site->serial, parent->serial,
|
|
method_serial, offset);
|
|
LFD_SET(fp->lfd, &site->lfdset);
|
|
|
|
upward:
|
|
parent = site;
|
|
}
|
|
|
|
if (maxstack)
|
|
calltree_maxstack_top = site;
|
|
depth = 0;
|
|
for (tmp = site; tmp; tmp = tmp->parent)
|
|
depth++;
|
|
if (depth > tmstats.calltree_maxdepth)
|
|
tmstats.calltree_maxdepth = depth;
|
|
return site;
|
|
}
|
|
|
|
#else /*XP_UNIX*/
|
|
|
|
static callsite *calltree(uint32 *bp)
|
|
{
|
|
logfile *fp = logfp;
|
|
uint32 *bpup, *bpdown, pc;
|
|
uint32 depth, nkids;
|
|
callsite *parent, *site, **csp, *tmp;
|
|
Dl_info info;
|
|
int ok, len, maxstack, offset;
|
|
uint32 library_serial, method_serial;
|
|
const char *library, *symbol;
|
|
char *method, *slash;
|
|
PLHashNumber hash;
|
|
PLHashEntry **hep, *he;
|
|
lfdset_entry *le;
|
|
uint32 filename_serial;
|
|
uint32 linenumber;
|
|
const char* filename;
|
|
|
|
/* Reverse the stack frame list to avoid recursion. */
|
|
bpup = NULL;
|
|
for (depth = 0; ; depth++) {
|
|
bpdown = (uint32*) bp[0];
|
|
bp[0] = (uint32) bpup;
|
|
pc = bp[1];
|
|
if (pc < 0x08000000 || pc > 0x7fffffff || bpdown < bp)
|
|
break;
|
|
bpup = bp;
|
|
bp = bpdown;
|
|
}
|
|
maxstack = (depth > tmstats.calltree_maxstack);
|
|
if (maxstack)
|
|
tmstats.calltree_maxstack = depth;
|
|
|
|
/* Reverse the stack again, finding and building a path in the tree. */
|
|
parent = &calltree_root;
|
|
do {
|
|
bpup = (uint32*) bp[0];
|
|
bp[0] = (uint32) bpdown;
|
|
pc = bp[1];
|
|
|
|
csp = &parent->kids;
|
|
while ((site = *csp) != NULL) {
|
|
if (site->pc == pc) {
|
|
tmstats.calltree_kidhits++;
|
|
|
|
/* Put the most recently used site at the front of siblings. */
|
|
*csp = site->siblings;
|
|
site->siblings = parent->kids;
|
|
parent->kids = site;
|
|
|
|
/* Check whether we've logged for this site and logfile yet. */
|
|
if (!LFD_TEST(fp->lfd, &site->lfdset)) {
|
|
/*
|
|
* Some other logfile put this site in the calltree. We
|
|
* must log an event for site, and possibly first for its
|
|
* method and/or library. Note the code after the while
|
|
* loop that tests if (!site).
|
|
*/
|
|
break;
|
|
}
|
|
|
|
/* Site already built and logged to fp -- go up the stack. */
|
|
goto upward;
|
|
}
|
|
tmstats.calltree_kidsteps++;
|
|
csp = &site->siblings;
|
|
}
|
|
|
|
if (!site) {
|
|
tmstats.calltree_kidmisses++;
|
|
|
|
/* Check for recursion: see if pc is on our ancestor line. */
|
|
for (site = parent; site; site = site->parent) {
|
|
if (site->pc == pc) {
|
|
tmstats.callsite_recurrences++;
|
|
last_callsite_recurrence = site;
|
|
goto upward;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Not in tree at all, or not logged to fp: let's find our symbolic
|
|
* callsite info. XXX static syms are masked by nearest lower global
|
|
*/
|
|
info.dli_fname = info.dli_sname = NULL;
|
|
ok = my_dladdr((void*) pc, &info);
|
|
if (ok < 0) {
|
|
tmstats.dladdr_failures++;
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* One day, if someone figures out how to get filename and line
|
|
* number info, this is the place to fill it all in.
|
|
*/
|
|
filename = "noname";
|
|
linenumber = 0;
|
|
|
|
/* Check whether we need to emit a library trace record. */
|
|
library_serial = 0;
|
|
library = info.dli_fname;
|
|
if (library) {
|
|
if (!libraries) {
|
|
libraries = PL_NewHashTable(100, PL_HashString,
|
|
PL_CompareStrings, PL_CompareValues,
|
|
&lfdset_hashallocops, NULL);
|
|
if (!libraries) {
|
|
tmstats.btmalloc_failures++;
|
|
return NULL;
|
|
}
|
|
}
|
|
hash = PL_HashString(library);
|
|
hep = PL_HashTableRawLookup(libraries, hash, library);
|
|
he = *hep;
|
|
if (he) {
|
|
library_serial = (uint32) he->value;
|
|
le = (lfdset_entry *) he;
|
|
if (LFD_TEST(fp->lfd, &le->lfdset)) {
|
|
/* We already logged an event on fp for this library. */
|
|
le = NULL;
|
|
}
|
|
} else {
|
|
library = strdup(library);
|
|
if (library) {
|
|
library_serial = ++library_serial_generator;
|
|
he = PL_HashTableRawAdd(libraries, hep, hash, library,
|
|
(void*) library_serial);
|
|
}
|
|
if (!he) {
|
|
tmstats.btmalloc_failures++;
|
|
return NULL;
|
|
}
|
|
le = (lfdset_entry *) he;
|
|
}
|
|
if (le) {
|
|
/* Need to log an event to fp for this lib. */
|
|
slash = strrchr(library, '/');
|
|
if (slash)
|
|
library = slash + 1;
|
|
log_event1(fp, TM_EVENT_LIBRARY, library_serial);
|
|
log_string(fp, library);
|
|
LFD_SET(fp->lfd, &le->lfdset);
|
|
}
|
|
}
|
|
|
|
/* Check whether we need to emit a filename trace record. */
|
|
filename_serial = 0;
|
|
if (filename) {
|
|
if (!filenames) {
|
|
filenames = PL_NewHashTable(100, PL_HashString,
|
|
PL_CompareStrings, PL_CompareValues,
|
|
&lfdset_hashallocops, NULL);
|
|
if (nsnull == filenames) {
|
|
tmstats.btmalloc_failures++;
|
|
return nsnull;
|
|
}
|
|
}
|
|
hash = PL_HashString(filename);
|
|
hep = PL_HashTableRawLookup(filenames, hash, filename);
|
|
he = *hep;
|
|
if (he) {
|
|
filename_serial = (uint32) he->value;
|
|
le = (lfdset_entry *) he;
|
|
if (LFD_TEST(fp->lfd, &le->lfdset)) {
|
|
/* We already logged an event on fp for this filename. */
|
|
le = NULL;
|
|
}
|
|
} else {
|
|
if (filename) {
|
|
filename_serial = ++filename_serial_generator;
|
|
he = PL_HashTableRawAdd(filenames, hep, hash, filename,
|
|
(void*) filename_serial);
|
|
}
|
|
if (!he) {
|
|
tmstats.btmalloc_failures++;
|
|
return NULL;
|
|
}
|
|
le = (lfdset_entry *) he;
|
|
}
|
|
if (le) {
|
|
/* Need to log an event to fp for this filename. */
|
|
log_event1(fp, TM_EVENT_FILENAME, filename_serial);
|
|
log_filename(fp, filename);
|
|
LFD_SET(fp->lfd, &le->lfdset);
|
|
}
|
|
}
|
|
|
|
/* Now find the demangled method name and pc offset in it. */
|
|
symbol = info.dli_sname;
|
|
offset = (char*)pc - (char*)info.dli_saddr;
|
|
method = NULL;
|
|
#ifdef MOZ_DEMANGLE_SYMBOLS
|
|
if (symbol && (len = strlen(symbol)) != 0) {
|
|
/* Attempt to demangle symbol in case it's a C++ mangled name. */
|
|
method = cplus_demangle(symbol, DMGL_PARAMS | DMGL_ANSI);
|
|
}
|
|
#endif
|
|
if (!method) {
|
|
method = symbol
|
|
? strdup(symbol)
|
|
: PR_smprintf("%s+%X",
|
|
info.dli_fname ? info.dli_fname : "main",
|
|
(char*)pc - (char*)info.dli_fbase);
|
|
}
|
|
if (!method) {
|
|
tmstats.btmalloc_failures++;
|
|
return NULL;
|
|
}
|
|
|
|
/* Emit an 'N' (for New method, 'M' is for malloc!) event if needed. */
|
|
method_serial = 0;
|
|
if (!methods) {
|
|
methods = PL_NewHashTable(10000, PL_HashString,
|
|
PL_CompareStrings, PL_CompareValues,
|
|
&lfdset_hashallocops, NULL);
|
|
if (!methods) {
|
|
tmstats.btmalloc_failures++;
|
|
free((void*) method);
|
|
return NULL;
|
|
}
|
|
}
|
|
hash = PL_HashString(method);
|
|
hep = PL_HashTableRawLookup(methods, hash, method);
|
|
he = *hep;
|
|
if (he) {
|
|
method_serial = (uint32) he->value;
|
|
free((void*) method);
|
|
method = (char *) he->key;
|
|
le = (lfdset_entry *) he;
|
|
if (LFD_TEST(fp->lfd, &le->lfdset)) {
|
|
/* We already logged an event on fp for this method. */
|
|
le = NULL;
|
|
}
|
|
} else {
|
|
method_serial = ++method_serial_generator;
|
|
he = PL_HashTableRawAdd(methods, hep, hash, method,
|
|
(void*) method_serial);
|
|
if (!he) {
|
|
tmstats.btmalloc_failures++;
|
|
free((void*) method);
|
|
return NULL;
|
|
}
|
|
le = (lfdset_entry *) he;
|
|
}
|
|
if (le) {
|
|
log_event4(fp, TM_EVENT_METHOD, method_serial, library_serial, filename_serial, linenumber);
|
|
log_string(fp, method);
|
|
LFD_SET(fp->lfd, &le->lfdset);
|
|
}
|
|
|
|
/* Create a new callsite record. */
|
|
if (!site) {
|
|
site = __libc_malloc(sizeof(callsite));
|
|
if (!site) {
|
|
tmstats.btmalloc_failures++;
|
|
return NULL;
|
|
}
|
|
|
|
/* Update parent and max-kids-per-parent stats. */
|
|
if (!parent->kids)
|
|
tmstats.calltree_parents++;
|
|
nkids = 1;
|
|
for (tmp = parent->kids; tmp; tmp = tmp->siblings)
|
|
nkids++;
|
|
if (nkids > tmstats.calltree_maxkids) {
|
|
tmstats.calltree_maxkids = nkids;
|
|
calltree_maxkids_parent = parent;
|
|
}
|
|
|
|
/* Insert the new site into the tree. */
|
|
site->pc = pc;
|
|
site->serial = ++callsite_serial_generator;
|
|
LFD_ZERO(&site->lfdset);
|
|
site->name = method;
|
|
site->library = info.dli_fname;
|
|
site->offset = (char*)pc - (char*)info.dli_fbase;
|
|
site->parent = parent;
|
|
site->siblings = parent->kids;
|
|
parent->kids = site;
|
|
site->kids = NULL;
|
|
}
|
|
|
|
/* Log the site with its parent, method, and offset. */
|
|
log_event4(fp, TM_EVENT_CALLSITE, site->serial, parent->serial,
|
|
method_serial, offset);
|
|
LFD_SET(fp->lfd, &site->lfdset);
|
|
|
|
upward:
|
|
parent = site;
|
|
bpdown = bp;
|
|
bp = bpup;
|
|
} while (bp);
|
|
|
|
if (maxstack)
|
|
calltree_maxstack_top = site;
|
|
depth = 0;
|
|
for (tmp = site; tmp; tmp = tmp->parent)
|
|
depth++;
|
|
if (depth > tmstats.calltree_maxdepth)
|
|
tmstats.calltree_maxdepth = depth;
|
|
return site;
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifdef XP_WIN32
|
|
|
|
callsite *
|
|
backtrace(int skip)
|
|
{
|
|
callsite *site;
|
|
|
|
tmstats.backtrace_calls++;
|
|
suppress_tracing++;
|
|
|
|
site = calltree(skip);
|
|
if (!site) {
|
|
tmstats.backtrace_failures++;
|
|
PR_ASSERT(tmstats.backtrace_failures < 100);
|
|
}
|
|
suppress_tracing--;
|
|
return site;
|
|
}
|
|
|
|
#else /*XP_UNIX*/
|
|
|
|
callsite *
|
|
backtrace(int skip)
|
|
{
|
|
jmp_buf jb;
|
|
uint32 *bp, *bpdown, pc;
|
|
callsite *site, **key;
|
|
PLHashNumber hash;
|
|
PLHashEntry **hep, *he;
|
|
int i, n;
|
|
|
|
tmstats.backtrace_calls++;
|
|
suppress_tracing++;
|
|
setjmp(jb);
|
|
|
|
/* Stack walking code adapted from Kipp's "leaky". */
|
|
bp = (uint32*) jb[0].__jmpbuf[JB_BP];
|
|
while (--skip >= 0) {
|
|
bpdown = (uint32*) *bp++;
|
|
pc = *bp;
|
|
if (pc < 0x08000000 || pc > 0x7fffffff || bpdown < bp)
|
|
break;
|
|
bp = bpdown;
|
|
}
|
|
|
|
site = calltree(bp);
|
|
if (!site) {
|
|
tmstats.backtrace_failures++;
|
|
PR_ASSERT(tmstats.backtrace_failures < 100);
|
|
}
|
|
suppress_tracing--;
|
|
return site;
|
|
}
|
|
|
|
|
|
#endif /* XP_UNIX */
|
|
|
|
|
|
typedef struct allocation {
|
|
PLHashEntry entry;
|
|
size_t size;
|
|
} allocation;
|
|
|
|
#define ALLOC_HEAP_SIZE 150000
|
|
|
|
static allocation alloc_heap[ALLOC_HEAP_SIZE];
|
|
static allocation *alloc_freelist = NULL;
|
|
static int alloc_heap_initialized = 0;
|
|
|
|
static PLHashEntry *alloc_allocentry(void *pool, const void *key)
|
|
{
|
|
allocation **listp, *alloc;
|
|
int n;
|
|
|
|
if (!alloc_heap_initialized) {
|
|
n = ALLOC_HEAP_SIZE;
|
|
listp = &alloc_freelist;
|
|
for (alloc = alloc_heap; --n >= 0; alloc++) {
|
|
*listp = alloc;
|
|
listp = (allocation**) &alloc->entry.next;
|
|
}
|
|
*listp = NULL;
|
|
alloc_heap_initialized = 1;
|
|
}
|
|
|
|
listp = &alloc_freelist;
|
|
alloc = *listp;
|
|
if (!alloc)
|
|
return __libc_malloc(sizeof(allocation));
|
|
*listp = (allocation*) alloc->entry.next;
|
|
return &alloc->entry;
|
|
}
|
|
|
|
static void alloc_freeentry(void *pool, PLHashEntry *he, PRUintn flag)
|
|
{
|
|
allocation *alloc;
|
|
|
|
if (flag != HT_FREE_ENTRY)
|
|
return;
|
|
alloc = (allocation*) he;
|
|
if (&alloc_heap[0] <= alloc && alloc < &alloc_heap[ALLOC_HEAP_SIZE]) {
|
|
alloc->entry.next = &alloc_freelist->entry;
|
|
alloc_freelist = alloc;
|
|
} else {
|
|
__libc_free((void*) alloc);
|
|
}
|
|
}
|
|
|
|
static PLHashAllocOps alloc_hashallocops = {
|
|
generic_alloctable, generic_freetable,
|
|
alloc_allocentry, alloc_freeentry
|
|
};
|
|
|
|
static PLHashNumber hash_pointer(const void *key)
|
|
{
|
|
return (PLHashNumber) key;
|
|
}
|
|
|
|
static PLHashTable *allocations = NULL;
|
|
|
|
static PLHashTable *new_allocations(void)
|
|
{
|
|
allocations = PL_NewHashTable(200000, hash_pointer,
|
|
PL_CompareValues, PL_CompareValues,
|
|
&alloc_hashallocops, NULL);
|
|
return allocations;
|
|
}
|
|
|
|
#define get_allocations() (allocations ? allocations : new_allocations())
|
|
|
|
#ifdef XP_UNIX
|
|
|
|
__ptr_t malloc(size_t size)
|
|
{
|
|
PRUint32 start, end;
|
|
__ptr_t *ptr;
|
|
callsite *site;
|
|
PLHashEntry *he;
|
|
allocation *alloc;
|
|
|
|
start = PR_IntervalNow();
|
|
ptr = __libc_malloc(size);
|
|
end = PR_IntervalNow();
|
|
TM_ENTER_MONITOR();
|
|
tmstats.malloc_calls++;
|
|
if (!ptr) {
|
|
tmstats.malloc_failures++;
|
|
} else if (suppress_tracing == 0) {
|
|
site = backtrace(1);
|
|
if (site)
|
|
log_event5(logfp, TM_EVENT_MALLOC,
|
|
site->serial, start, end - start,
|
|
(uint32)NS_PTR_TO_INT32(ptr), size);
|
|
if (get_allocations()) {
|
|
suppress_tracing++;
|
|
he = PL_HashTableAdd(allocations, ptr, site);
|
|
suppress_tracing--;
|
|
if (he) {
|
|
alloc = (allocation*) he;
|
|
alloc->size = size;
|
|
}
|
|
}
|
|
}
|
|
TM_EXIT_MONITOR();
|
|
return ptr;
|
|
}
|
|
|
|
__ptr_t calloc(size_t count, size_t size)
|
|
{
|
|
PRUint32 start, end;
|
|
__ptr_t *ptr;
|
|
callsite *site;
|
|
PLHashEntry *he;
|
|
allocation *alloc;
|
|
|
|
start = PR_IntervalNow();
|
|
ptr = __libc_calloc(count, size);
|
|
end = PR_IntervalNow();
|
|
TM_ENTER_MONITOR();
|
|
tmstats.calloc_calls++;
|
|
if (!ptr) {
|
|
tmstats.calloc_failures++;
|
|
} else if (suppress_tracing == 0) {
|
|
site = backtrace(1);
|
|
size *= count;
|
|
if (site)
|
|
log_event5(logfp, TM_EVENT_CALLOC,
|
|
site->serial, start, end - start,
|
|
(uint32)NS_PTR_TO_INT32(ptr), size);
|
|
if (get_allocations()) {
|
|
suppress_tracing++;
|
|
he = PL_HashTableAdd(allocations, ptr, site);
|
|
suppress_tracing--;
|
|
if (he) {
|
|
alloc = (allocation*) he;
|
|
alloc->size = size;
|
|
}
|
|
}
|
|
}
|
|
TM_EXIT_MONITOR();
|
|
return ptr;
|
|
}
|
|
|
|
__ptr_t realloc(__ptr_t ptr, size_t size)
|
|
{
|
|
PRUint32 start, end;
|
|
__ptr_t oldptr;
|
|
callsite *oldsite, *site;
|
|
size_t oldsize;
|
|
PLHashNumber hash;
|
|
PLHashEntry **hep, *he;
|
|
allocation *alloc;
|
|
|
|
TM_ENTER_MONITOR();
|
|
tmstats.realloc_calls++;
|
|
if (suppress_tracing == 0) {
|
|
oldptr = ptr;
|
|
oldsite = NULL;
|
|
oldsize = 0;
|
|
he = NULL;
|
|
if (oldptr && get_allocations()) {
|
|
hash = hash_pointer(oldptr);
|
|
hep = PL_HashTableRawLookup(allocations, hash, oldptr);
|
|
he = *hep;
|
|
if (he) {
|
|
oldsite = (callsite*) he->value;
|
|
alloc = (allocation*) he;
|
|
oldsize = alloc->size;
|
|
}
|
|
}
|
|
}
|
|
TM_EXIT_MONITOR();
|
|
|
|
start = PR_IntervalNow();
|
|
ptr = __libc_realloc(ptr, size);
|
|
end = PR_IntervalNow();
|
|
|
|
TM_ENTER_MONITOR();
|
|
if (!ptr && size) {
|
|
/*
|
|
* When realloc() fails, the original block is not freed or moved, so
|
|
* we'll leave the allocation entry untouched.
|
|
*/
|
|
tmstats.realloc_failures++;
|
|
} else if (suppress_tracing == 0) {
|
|
site = backtrace(1);
|
|
if (site) {
|
|
log_event8(logfp, TM_EVENT_REALLOC,
|
|
site->serial, start, end - start,
|
|
(uint32)NS_PTR_TO_INT32(ptr), size,
|
|
oldsite ? oldsite->serial : 0,
|
|
(uint32)NS_PTR_TO_INT32(oldptr), oldsize);
|
|
}
|
|
if (ptr && allocations) {
|
|
suppress_tracing++;
|
|
if (ptr != oldptr) {
|
|
/*
|
|
* If we're reallocating (not merely allocating new space by
|
|
* passing null to realloc) and realloc has moved the block,
|
|
* free oldptr.
|
|
*/
|
|
if (he)
|
|
PL_HashTableRemove(allocations, oldptr);
|
|
|
|
/* Record the new allocation now, setting he. */
|
|
he = PL_HashTableAdd(allocations, ptr, site);
|
|
} else {
|
|
/*
|
|
* If we haven't yet recorded an allocation (possibly due to
|
|
* a temporary memory shortage), do it now.
|
|
*/
|
|
if (!he)
|
|
he = PL_HashTableAdd(allocations, ptr, site);
|
|
}
|
|
suppress_tracing--;
|
|
if (he) {
|
|
alloc = (allocation*) he;
|
|
alloc->size = size;
|
|
}
|
|
}
|
|
}
|
|
TM_EXIT_MONITOR();
|
|
return ptr;
|
|
}
|
|
|
|
void free(__ptr_t ptr)
|
|
{
|
|
PLHashEntry **hep, *he;
|
|
callsite *site;
|
|
allocation *alloc;
|
|
uint32 serial = 0, size = 0;
|
|
PRUint32 start, end;
|
|
|
|
TM_ENTER_MONITOR();
|
|
tmstats.free_calls++;
|
|
if (!ptr) {
|
|
tmstats.null_free_calls++;
|
|
} else if (suppress_tracing == 0) {
|
|
if (get_allocations()) {
|
|
hep = PL_HashTableRawLookup(allocations, hash_pointer(ptr), ptr);
|
|
he = *hep;
|
|
if (he) {
|
|
site = (callsite*) he->value;
|
|
if (site) {
|
|
alloc = (allocation*) he;
|
|
serial = site->serial;
|
|
size = alloc->size;
|
|
}
|
|
PL_HashTableRawRemove(allocations, hep, he);
|
|
}
|
|
}
|
|
}
|
|
TM_EXIT_MONITOR();
|
|
|
|
start = PR_IntervalNow();
|
|
__libc_free(ptr);
|
|
end = PR_IntervalNow();
|
|
|
|
if (size != 0) {
|
|
TM_ENTER_MONITOR();
|
|
log_event5(logfp, TM_EVENT_FREE,
|
|
serial, start, end - start,
|
|
(uint32)NS_PTR_TO_INT32(ptr), size);
|
|
TM_EXIT_MONITOR();
|
|
}
|
|
}
|
|
|
|
#endif /* XP_UNIX */
|
|
|
|
static const char magic[] = NS_TRACE_MALLOC_MAGIC;
|
|
|
|
static void
|
|
log_header(int logfd)
|
|
{
|
|
uint32 ticksPerSec = PR_htonl(PR_TicksPerSecond());
|
|
(void) write(logfd, magic, NS_TRACE_MALLOC_MAGIC_SIZE);
|
|
(void) write(logfd, &ticksPerSec, sizeof ticksPerSec);
|
|
}
|
|
|
|
PR_IMPLEMENT(void) NS_TraceMallocStartup(int logfd)
|
|
{
|
|
/* We must be running on the primordial thread. */
|
|
PR_ASSERT(suppress_tracing == 0);
|
|
PR_ASSERT(logfp == &default_logfile);
|
|
suppress_tracing = (logfd < 0);
|
|
|
|
if (suppress_tracing == 0) {
|
|
/* Log everything in logfp (aka default_logfile)'s buffer to logfd. */
|
|
logfp->fd = logfd;
|
|
logfile_list = &default_logfile;
|
|
logfp->prevp = &logfile_list;
|
|
logfile_tail = &logfp->next;
|
|
log_header(logfd);
|
|
}
|
|
|
|
atexit(NS_TraceMallocShutdown);
|
|
tmmon = PR_NewMonitor();
|
|
|
|
#ifdef XP_WIN32
|
|
/* Register listeners for win32. */
|
|
{
|
|
StartupHooker();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* Options for log files, with the log file name either as the next option
|
|
* or separated by '=' (e.g. "./mozilla --trace-malloc * malloc.log" or
|
|
* "./mozilla --trace-malloc=malloc.log").
|
|
*/
|
|
static const char TMLOG_OPTION[] = "--trace-malloc";
|
|
static const char SDLOG_OPTION[] = "--shutdown-leaks";
|
|
|
|
#define SHOULD_PARSE_ARG(name_, log_, arg_) \
|
|
(0 == strncmp(arg_, name_, sizeof(name_) - 1))
|
|
|
|
#define PARSE_ARG(name_, log_, argv_, i_, consumed_) \
|
|
PR_BEGIN_MACRO \
|
|
char _nextchar = argv_[i_][sizeof(name_) - 1]; \
|
|
if (_nextchar == '=') { \
|
|
log_ = argv_[i_] + sizeof(name_); \
|
|
consumed_ = 1; \
|
|
} else if (_nextchar == '\0') { \
|
|
log_ = argv_[i_+1]; \
|
|
consumed_ = 2; \
|
|
} \
|
|
PR_END_MACRO
|
|
|
|
PR_IMPLEMENT(int) NS_TraceMallocStartupArgs(int argc, char* argv[])
|
|
{
|
|
int i, logfd = -1, consumed, logflags;
|
|
char *tmlogname = NULL; /* note global |sdlogname| */
|
|
|
|
/*
|
|
* Look for the --trace-malloc <logfile> option early, to avoid missing
|
|
* early mallocs (we miss static constructors whose output overflows the
|
|
* log file's static 16K output buffer).
|
|
*/
|
|
for (i = 1; i < argc; i += consumed) {
|
|
consumed = 0;
|
|
if (SHOULD_PARSE_ARG(TMLOG_OPTION, tmlogname, argv[i]))
|
|
PARSE_ARG(TMLOG_OPTION, tmlogname, argv, i, consumed);
|
|
else if (SHOULD_PARSE_ARG(SDLOG_OPTION, sdlogname, argv[i]))
|
|
PARSE_ARG(SDLOG_OPTION, sdlogname, argv, i, consumed);
|
|
|
|
if (consumed) {
|
|
#ifndef XP_WIN32 /* If we don't comment this out, it will crash Windows. */
|
|
int j;
|
|
/* Now remove --trace-malloc and its argument from argv. */
|
|
argc -= consumed;
|
|
for (j = i; j < argc; ++j)
|
|
argv[j] = argv[j+consumed];
|
|
argv[argc] = NULL;
|
|
consumed = 0; /* don't advance next iteration */
|
|
#endif
|
|
} else {
|
|
consumed = 1;
|
|
}
|
|
}
|
|
|
|
if (tmlogname) {
|
|
#ifdef XP_UNIX
|
|
int pipefds[2];
|
|
#endif
|
|
|
|
switch (*tmlogname) {
|
|
#ifdef XP_UNIX
|
|
case '|':
|
|
if (pipe(pipefds) == 0) {
|
|
pid_t pid = fork();
|
|
if (pid == 0) {
|
|
/* In child: set up stdin, parse args, and exec. */
|
|
int maxargc, nargc;
|
|
char **nargv, *token;
|
|
|
|
if (pipefds[0] != 0) {
|
|
dup2(pipefds[0], 0);
|
|
close(pipefds[0]);
|
|
}
|
|
close(pipefds[1]);
|
|
|
|
tmlogname = strtok(tmlogname + 1, " \t");
|
|
maxargc = 3;
|
|
nargv = (char **) malloc((maxargc+1) * sizeof(char *));
|
|
if (!nargv) exit(1);
|
|
nargc = 0;
|
|
nargv[nargc++] = tmlogname;
|
|
while ((token = strtok(NULL, " \t")) != NULL) {
|
|
if (nargc == maxargc) {
|
|
maxargc *= 2;
|
|
nargv = (char**)
|
|
realloc(nargv, (maxargc+1) * sizeof(char*));
|
|
if (!nargv) exit(1);
|
|
}
|
|
nargv[nargc++] = token;
|
|
}
|
|
nargv[nargc] = NULL;
|
|
|
|
(void) setsid();
|
|
execvp(tmlogname, nargv);
|
|
exit(127);
|
|
}
|
|
|
|
if (pid > 0) {
|
|
/* In parent: set logfd to the pipe's write side. */
|
|
close(pipefds[0]);
|
|
logfd = pipefds[1];
|
|
}
|
|
}
|
|
if (logfd < 0) {
|
|
fprintf(stderr,
|
|
"%s: can't pipe to trace-malloc child process %s: %s\n",
|
|
argv[0], tmlogname, strerror(errno));
|
|
exit(1);
|
|
}
|
|
break;
|
|
#endif /*XP_UNIX*/
|
|
case '-':
|
|
/* Don't log from startup, but do prepare to log later. */
|
|
/* XXX traditional meaning of '-' as option argument is "stdin" or "stdout" */
|
|
if (tmlogname[1] == '\0')
|
|
break;
|
|
/* FALL THROUGH */
|
|
|
|
default:
|
|
logflags = O_CREAT | O_WRONLY | O_TRUNC;
|
|
#if defined(XP_WIN32)
|
|
/*
|
|
* Avoid translations on WIN32.
|
|
*/
|
|
logflags |= O_BINARY;
|
|
#endif
|
|
logfd = open(tmlogname, logflags, 0644);
|
|
if (logfd < 0) {
|
|
fprintf(stderr,
|
|
"%s: can't create trace-malloc log named %s: %s\n",
|
|
argv[0], tmlogname, strerror(errno));
|
|
exit(1);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (logfd >= 0)
|
|
NS_TraceMallocStartup(logfd);
|
|
return argc;
|
|
}
|
|
|
|
PR_IMPLEMENT(void) NS_TraceMallocShutdown()
|
|
{
|
|
logfile *fp;
|
|
|
|
if (sdlogname)
|
|
NS_TraceMallocDumpAllocations(sdlogname);
|
|
|
|
if (tmstats.backtrace_failures) {
|
|
fprintf(stderr,
|
|
"TraceMalloc backtrace failures: %lu (malloc %lu dladdr %lu)\n",
|
|
(unsigned long) tmstats.backtrace_failures,
|
|
(unsigned long) tmstats.btmalloc_failures,
|
|
(unsigned long) tmstats.dladdr_failures);
|
|
}
|
|
while ((fp = logfile_list) != NULL) {
|
|
logfile_list = fp->next;
|
|
log_tmstats(fp);
|
|
flush_logfile(fp);
|
|
if (fp->fd >= 0) {
|
|
close(fp->fd);
|
|
fp->fd = -1;
|
|
}
|
|
if (fp != &default_logfile) {
|
|
if (fp == logfp)
|
|
logfp = &default_logfile;
|
|
free((void*) fp);
|
|
}
|
|
}
|
|
if (tmmon) {
|
|
PRMonitor *mon = tmmon;
|
|
tmmon = NULL;
|
|
PR_DestroyMonitor(mon);
|
|
}
|
|
#ifdef XP_WIN32
|
|
ShutdownHooker();
|
|
#endif
|
|
}
|
|
|
|
PR_IMPLEMENT(void) NS_TraceMallocDisable()
|
|
{
|
|
logfile *fp;
|
|
|
|
TM_ENTER_MONITOR();
|
|
for (fp = logfile_list; fp; fp = fp->next)
|
|
flush_logfile(fp);
|
|
suppress_tracing++;
|
|
TM_EXIT_MONITOR();
|
|
}
|
|
|
|
PR_IMPLEMENT(void) NS_TraceMallocEnable()
|
|
{
|
|
TM_ENTER_MONITOR();
|
|
suppress_tracing--;
|
|
TM_EXIT_MONITOR();
|
|
}
|
|
|
|
PR_IMPLEMENT(int) NS_TraceMallocChangeLogFD(int fd)
|
|
{
|
|
logfile *oldfp, *fp;
|
|
struct stat sb;
|
|
|
|
TM_ENTER_MONITOR();
|
|
oldfp = logfp;
|
|
if (oldfp->fd != fd) {
|
|
flush_logfile(oldfp);
|
|
fp = get_logfile(fd);
|
|
if (!fp)
|
|
return -2;
|
|
if (fd >= 0 && fstat(fd, &sb) == 0 && sb.st_size == 0)
|
|
log_header(fd);
|
|
logfp = fp;
|
|
}
|
|
TM_EXIT_MONITOR();
|
|
return oldfp->fd;
|
|
}
|
|
|
|
static PRIntn
|
|
lfd_clr_enumerator(PLHashEntry *he, PRIntn i, void *arg)
|
|
{
|
|
lfdset_entry *le = (lfdset_entry*) he;
|
|
logfile *fp = (logfile*) arg;
|
|
|
|
LFD_CLR(fp->lfd, &le->lfdset);
|
|
return HT_ENUMERATE_NEXT;
|
|
}
|
|
|
|
static void
|
|
lfd_clr_walk(callsite *site, logfile *fp)
|
|
{
|
|
callsite *kid;
|
|
|
|
LFD_CLR(fp->lfd, &site->lfdset);
|
|
for (kid = site->kids; kid; kid = kid->siblings)
|
|
lfd_clr_walk(kid, fp);
|
|
}
|
|
|
|
PR_IMPLEMENT(void)
|
|
NS_TraceMallocCloseLogFD(int fd)
|
|
{
|
|
logfile *fp;
|
|
|
|
TM_ENTER_MONITOR();
|
|
|
|
fp = get_logfile(fd);
|
|
if (fp) {
|
|
flush_logfile(fp);
|
|
if (fp == &default_logfile) {
|
|
/* Leave default_logfile in logfile_list with an fd of -1. */
|
|
fp->fd = -1;
|
|
|
|
/* NB: we can never free lfd 0, it belongs to default_logfile. */
|
|
PR_ASSERT(fp->lfd == 0);
|
|
} else {
|
|
/* Clear fp->lfd in all possible lfdsets. */
|
|
PL_HashTableEnumerateEntries(libraries, lfd_clr_enumerator, fp);
|
|
PL_HashTableEnumerateEntries(methods, lfd_clr_enumerator, fp);
|
|
lfd_clr_walk(&calltree_root, fp);
|
|
|
|
/* Unlink fp from logfile_list, freeing lfd for reallocation. */
|
|
*fp->prevp = fp->next;
|
|
if (!fp->next) {
|
|
PR_ASSERT(logfile_tail == &fp->next);
|
|
logfile_tail = fp->prevp;
|
|
}
|
|
|
|
/* Reset logfp if we must, then free fp. */
|
|
if (fp == logfp)
|
|
logfp = &default_logfile;
|
|
free((void*) fp);
|
|
}
|
|
}
|
|
|
|
TM_EXIT_MONITOR();
|
|
close(fd);
|
|
}
|
|
|
|
PR_IMPLEMENT(void)
|
|
NS_TraceMallocLogTimestamp(const char *caption)
|
|
{
|
|
logfile *fp;
|
|
#ifdef XP_UNIX
|
|
struct timeval tv;
|
|
#endif
|
|
#ifdef XP_WIN32
|
|
struct _timeb tb;
|
|
#endif
|
|
|
|
TM_ENTER_MONITOR();
|
|
|
|
fp = logfp;
|
|
log_byte(fp, TM_EVENT_TIMESTAMP);
|
|
|
|
#ifdef XP_UNIX
|
|
gettimeofday(&tv, NULL);
|
|
log_uint32(fp, (uint32) tv.tv_sec);
|
|
log_uint32(fp, (uint32) tv.tv_usec);
|
|
#endif
|
|
#ifdef XP_WIN32
|
|
_ftime(&tb);
|
|
log_uint32(fp, (uint32) tb.time);
|
|
log_uint32(fp, (uint32) tb.millitm);
|
|
#endif
|
|
log_string(fp, caption);
|
|
|
|
TM_EXIT_MONITOR();
|
|
}
|
|
|
|
static PRIntn
|
|
allocation_enumerator(PLHashEntry *he, PRIntn i, void *arg)
|
|
{
|
|
allocation *alloc = (allocation*) he;
|
|
FILE *ofp = (FILE*) arg;
|
|
callsite *site = (callsite*) he->value;
|
|
|
|
extern const char* nsGetTypeName(const void* ptr);
|
|
unsigned *p, *end;
|
|
|
|
fprintf(ofp, "0x%08X <%s> (%lu)\n", (unsigned) he->key, nsGetTypeName(he->key), (unsigned long) alloc->size);
|
|
|
|
end = (unsigned*)(((char*) he->key) + alloc->size);
|
|
for (p = (unsigned*)he->key; p < end; ++p)
|
|
fprintf(ofp, "\t0x%08X\n", *p);
|
|
|
|
while (site) {
|
|
if (site->name || site->parent)
|
|
fprintf(ofp, "%s[%s +0x%X]\n", site->name, site->library, site->offset);
|
|
site = site->parent;
|
|
}
|
|
fputc('\n', ofp);
|
|
return HT_ENUMERATE_NEXT;
|
|
}
|
|
|
|
PR_IMPLEMENT(void)
|
|
NS_TraceStack(int skip, FILE *ofp)
|
|
{
|
|
callsite *site;
|
|
|
|
site = backtrace(skip + 1);
|
|
while (site) {
|
|
if (site->name || site->parent)
|
|
fprintf(ofp, "%s[%s +0x%X]\n", site->name, site->library, site->offset);
|
|
site = site->parent;
|
|
}
|
|
}
|
|
|
|
PR_IMPLEMENT(int)
|
|
NS_TraceMallocDumpAllocations(const char *pathname)
|
|
{
|
|
FILE *ofp;
|
|
int rv;
|
|
ofp = fopen(pathname, WRITE_FLAGS);
|
|
if (!ofp)
|
|
return -1;
|
|
if (allocations)
|
|
PL_HashTableEnumerateEntries(allocations, allocation_enumerator, ofp);
|
|
rv = ferror(ofp) ? -1 : 0;
|
|
fclose(ofp);
|
|
return rv;
|
|
}
|
|
|
|
PR_IMPLEMENT(void)
|
|
NS_TraceMallocFlushLogfiles()
|
|
{
|
|
logfile *fp;
|
|
|
|
TM_ENTER_MONITOR();
|
|
|
|
for (fp = logfile_list; fp; fp = fp->next)
|
|
flush_logfile(fp);
|
|
|
|
TM_EXIT_MONITOR();
|
|
}
|
|
|
|
#ifdef XP_WIN32
|
|
|
|
PR_IMPLEMENT(void)
|
|
MallocCallback(void *ptr, size_t size, PRUint32 start, PRUint32 end)
|
|
{
|
|
callsite *site;
|
|
PLHashEntry *he;
|
|
allocation *alloc;
|
|
|
|
TM_ENTER_MONITOR();
|
|
tmstats.malloc_calls++;
|
|
if (!ptr) {
|
|
tmstats.malloc_failures++;
|
|
} else if (suppress_tracing == 0) {
|
|
site = backtrace(4);
|
|
if (site)
|
|
log_event5(logfp, TM_EVENT_MALLOC,
|
|
site->serial, start, end - start,
|
|
(uint32)NS_PTR_TO_INT32(ptr), size);
|
|
if (get_allocations()) {
|
|
suppress_tracing++;
|
|
he = PL_HashTableAdd(allocations, ptr, site);
|
|
suppress_tracing--;
|
|
if (he) {
|
|
alloc = (allocation*) he;
|
|
alloc->size = size;
|
|
}
|
|
}
|
|
}
|
|
TM_EXIT_MONITOR();
|
|
}
|
|
|
|
PR_IMPLEMENT(void)
|
|
CallocCallback(void *ptr, size_t count, size_t size, PRUint32 start, PRUint32 end)
|
|
{
|
|
callsite *site;
|
|
PLHashEntry *he;
|
|
allocation *alloc;
|
|
|
|
TM_ENTER_MONITOR();
|
|
tmstats.calloc_calls++;
|
|
if (!ptr) {
|
|
tmstats.calloc_failures++;
|
|
} else if (suppress_tracing == 0) {
|
|
site = backtrace(1);
|
|
size *= count;
|
|
if (site)
|
|
log_event5(logfp, TM_EVENT_CALLOC,
|
|
site->serial, start, end - start,
|
|
(uint32)NS_PTR_TO_INT32(ptr), size);
|
|
if (get_allocations()) {
|
|
suppress_tracing++;
|
|
he = PL_HashTableAdd(allocations, ptr, site);
|
|
suppress_tracing--;
|
|
if (he) {
|
|
alloc = (allocation*) he;
|
|
alloc->size = size;
|
|
}
|
|
}
|
|
}
|
|
TM_EXIT_MONITOR();
|
|
}
|
|
|
|
PR_IMPLEMENT(void)
|
|
ReallocCallback(void * oldptr, void *ptr, size_t size, PRUint32 start, PRUint32 end)
|
|
{
|
|
callsite *oldsite, *site;
|
|
size_t oldsize;
|
|
PLHashNumber hash;
|
|
PLHashEntry **hep, *he;
|
|
allocation *alloc;
|
|
|
|
TM_ENTER_MONITOR();
|
|
tmstats.realloc_calls++;
|
|
if (suppress_tracing == 0) {
|
|
oldsite = NULL;
|
|
oldsize = 0;
|
|
he = NULL;
|
|
if (oldptr && get_allocations()) {
|
|
hash = hash_pointer(oldptr);
|
|
hep = PL_HashTableRawLookup(allocations, hash, oldptr);
|
|
he = *hep;
|
|
if (he) {
|
|
oldsite = (callsite*) he->value;
|
|
alloc = (allocation*) he;
|
|
oldsize = alloc->size;
|
|
}
|
|
}
|
|
}
|
|
if (!ptr && size) {
|
|
tmstats.realloc_failures++;
|
|
|
|
/*
|
|
* When realloc() fails, the original block is not freed or moved, so
|
|
* we'll leave the allocation entry untouched.
|
|
*/
|
|
} else if (suppress_tracing == 0) {
|
|
site = backtrace(1);
|
|
if (site) {
|
|
log_event8(logfp, TM_EVENT_REALLOC,
|
|
site->serial, start, end - start,
|
|
(uint32)NS_PTR_TO_INT32(ptr), size,
|
|
oldsite ? oldsite->serial : 0,
|
|
(uint32)NS_PTR_TO_INT32(oldptr), oldsize);
|
|
}
|
|
if (ptr && allocations) {
|
|
suppress_tracing++;
|
|
if (ptr != oldptr) {
|
|
/*
|
|
* If we're reallocating (not allocating new space by passing
|
|
* null to realloc) and realloc moved the block, free oldptr.
|
|
*/
|
|
if (he)
|
|
PL_HashTableRawRemove(allocations, hep, he);
|
|
|
|
/* Record the new allocation now, setting he. */
|
|
he = PL_HashTableAdd(allocations, ptr, site);
|
|
} else {
|
|
/*
|
|
* If we haven't yet recorded an allocation (possibly due to a
|
|
* temporary memory shortage), do it now.
|
|
*/
|
|
if (!he)
|
|
he = PL_HashTableAdd(allocations, ptr, site);
|
|
}
|
|
suppress_tracing--;
|
|
if (he) {
|
|
alloc = (allocation*) he;
|
|
alloc->size = size;
|
|
}
|
|
}
|
|
}
|
|
TM_EXIT_MONITOR();
|
|
}
|
|
|
|
PR_IMPLEMENT(void)
|
|
FreeCallback(void * ptr, PRUint32 start, PRUint32 end)
|
|
{
|
|
PLHashEntry **hep, *he;
|
|
callsite *site;
|
|
allocation *alloc;
|
|
|
|
TM_ENTER_MONITOR();
|
|
tmstats.free_calls++;
|
|
if (!ptr) {
|
|
tmstats.null_free_calls++;
|
|
} else if (suppress_tracing == 0) {
|
|
if (get_allocations()) {
|
|
hep = PL_HashTableRawLookup(allocations, hash_pointer(ptr), ptr);
|
|
he = *hep;
|
|
if (he) {
|
|
site = (callsite*) he->value;
|
|
if (site) {
|
|
alloc = (allocation*) he;
|
|
log_event5(logfp, TM_EVENT_FREE,
|
|
site->serial, start, end - start,
|
|
(uint32)NS_PTR_TO_INT32(ptr), alloc->size);
|
|
}
|
|
PL_HashTableRawRemove(allocations, hep, he);
|
|
}
|
|
}
|
|
}
|
|
TM_EXIT_MONITOR();
|
|
}
|
|
|
|
#endif /*XP_WIN32*/
|
|
|
|
#endif /* NS_TRACE_MALLOC */
|