578 lines
15 KiB
C
578 lines
15 KiB
C
/* $NetBSD: rf_debugMem.c,v 1.1 1998/11/13 04:20:28 oster Exp $ */
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/*
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* Copyright (c) 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Daniel Stodolsky, Mark Holland, Jim Zelenka
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/* debugMem.c: memory usage debugging stuff.
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* Malloc, Calloc, and Free are #defined everywhere
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* to do_malloc, do_calloc, and do_free.
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*
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* if RF_UTILITY is nonzero, it means were compiling one of the
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* raidframe utility programs, such as rfctrl or smd. In this
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* case, we eliminate all references to the threads package
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* and to the allocation list stuff.
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*/
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/* :
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* Log: rf_debugMem.c,v
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* Revision 1.38 1996/08/20 14:45:43 jimz
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* add debugging to track memory allocated (amount only, w/out
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* excessive sanity checking)
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*
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* Revision 1.37 1996/07/27 23:36:08 jimz
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* Solaris port of simulator
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*
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* Revision 1.36 1996/07/18 22:57:14 jimz
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* port simulator to AIX
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*
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* Revision 1.35 1996/06/13 08:55:38 jimz
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* make error messages refer to file, line of original
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* allocation
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*
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* Revision 1.34 1996/06/10 11:55:47 jimz
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* Straightened out some per-array/not-per-array distinctions, fixed
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* a couple bugs related to confusion. Added shutdown lists. Removed
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* layout shutdown function (now subsumed by shutdown lists).
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*
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* Revision 1.33 1996/06/09 02:36:46 jimz
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* lots of little crufty cleanup- fixup whitespace
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* issues, comment #ifdefs, improve typing in some
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* places (esp size-related)
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*
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* Revision 1.32 1996/06/05 18:06:02 jimz
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* Major code cleanup. The Great Renaming is now done.
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* Better modularity. Better typing. Fixed a bunch of
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* synchronization bugs. Made a lot of global stuff
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* per-desc or per-array. Removed dead code.
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*
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* Revision 1.31 1996/05/30 23:22:16 jimz
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* bugfixes of serialization, timing problems
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* more cleanup
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*
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* Revision 1.30 1996/05/30 11:29:41 jimz
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* Numerous bug fixes. Stripe lock release code disagreed with the taking code
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* about when stripes should be locked (I made it consistent: no parity, no lock)
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* There was a lot of extra serialization of I/Os which I've removed- a lot of
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* it was to calculate values for the cache code, which is no longer with us.
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* More types, function, macro cleanup. Added code to properly quiesce the array
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* on shutdown. Made a lot of stuff array-specific which was (bogusly) general
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* before. Fixed memory allocation, freeing bugs.
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*
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* Revision 1.29 1996/05/27 18:56:37 jimz
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* more code cleanup
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* better typing
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* compiles in all 3 environments
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*
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* Revision 1.28 1996/05/23 21:46:35 jimz
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* checkpoint in code cleanup (release prep)
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* lots of types, function names have been fixed
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*
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* Revision 1.27 1996/05/23 00:33:23 jimz
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* code cleanup: move all debug decls to rf_options.c, all extern
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* debug decls to rf_options.h, all debug vars preceded by rf_
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*
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* Revision 1.26 1996/05/21 18:53:46 jimz
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* return NULL for failed allocations, not panic
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*
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* Revision 1.25 1996/05/20 16:14:19 jimz
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* switch to rf_{mutex,cond}_{init,destroy}
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*
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* Revision 1.24 1996/05/18 19:51:34 jimz
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* major code cleanup- fix syntax, make some types consistent,
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* add prototypes, clean out dead code, et cetera
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*
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* Revision 1.23 1996/05/17 12:42:35 jimz
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* wrap get_threadid stuff in #ifndef UTILITY for utils which use
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* redzone allocation stuff
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*
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* Revision 1.22 1996/05/16 23:06:09 jimz
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* don't warn about NULL alists
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*
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* Revision 1.21 1996/05/16 22:25:02 jimz
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* show allocations for [MC]allocAndAdd
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*
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* Revision 1.20 1996/05/15 18:30:22 jimz
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* print memory allocation as well as frees if memDebug > 1
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*
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* Revision 1.19 1996/05/07 17:41:17 jimz
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* add "level 2" for memDebug, which will print freed address ranges
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*
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* Revision 1.18 1996/05/02 20:41:53 jimz
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* really fix malloc problem out-of-kernel in memory_hash_insert()
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*
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* Revision 1.17 1996/05/02 20:04:29 jimz
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* fixed malloc deadlock previous change introduced
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*
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* Revision 1.16 1996/05/01 16:27:26 jimz
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* get rid of ALLOCMH
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* stop using ccmn_ memory management
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*
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* Revision 1.15 1995/12/12 18:10:06 jimz
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* MIN -> RF_MIN, MAX -> RF_MAX, ASSERT -> RF_ASSERT
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* fix 80-column brain damage in comments
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*
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* Revision 1.14 1995/12/01 15:56:17 root
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* added copyright info
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*
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*/
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#include "rf_types.h"
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#include "rf_sys.h"
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#if RF_UTILITY == 0
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#include "rf_threadstuff.h"
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#include "rf_threadid.h"
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#include "rf_options.h"
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#else /* RF_UTILITY == 0 */
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#include "rf_utility.h"
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#endif /* RF_UTILITY == 0 */
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#ifndef KERNEL
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#include <stdio.h>
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#include <assert.h>
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#endif /* !KERNEL */
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#include "rf_debugMem.h"
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#include "rf_general.h"
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static long tot_mem_in_use = 0, max_mem = 0;
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/* Hash table of information about memory allocations */
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#define RF_MH_TABLESIZE 1000
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struct mh_struct {
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void *address;
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int size;
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int line;
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char *filen;
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char allocated;
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struct mh_struct *next;
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};
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static struct mh_struct *mh_table[RF_MH_TABLESIZE];
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RF_DECLARE_MUTEX(rf_debug_mem_mutex)
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static int mh_table_initialized=0;
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static void memory_hash_insert(void *addr, int size, int line, char *filen);
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static int memory_hash_remove(void *addr, int sz);
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#ifndef KERNEL /* no redzones or "real_" routines in the kernel */
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static void rf_redzone_free_failed(void *ptr, int size, int line, char *file);
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void *rf_real_redzone_malloc(_size_)
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int _size_;
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{
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char *p;
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rf_validate_mh_table();
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p = malloc((_size_)+16);
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if (p == NULL)
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return(p);
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RF_ASSERT (p);
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*((long *) p) = (_size_) ;
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((char *) p)[(_size_)+8] = '!';
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((char *) p)[(_size_)+15] = '!';
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p += 8;
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return(p);
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}
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void *rf_real_redzone_calloc(_n_,_size_)
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int _n_,_size_;
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{
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char *p;
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int _sz_;
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rf_validate_mh_table();
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_sz_ = (_n_) * (_size_);
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p = malloc((_sz_)+16);
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if (p == NULL)
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return(p);
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bzero(p,(_sz_)+16);
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*((long *) p) = (_sz_) ;
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((char *) p)[(_sz_)+8] = '!';
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((char *) p)[(_sz_)+15] = '!';
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p += 8;
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return(p);
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}
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void rf_real_redzone_free(p, line, filen)
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char *p;
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int line;
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char *filen;
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{
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unsigned long _size_;
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rf_validate_mh_table();
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p -= 8;
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_size_ = *((long *) p);
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if ((((char *) p)[(_size_)+8] != '!') || (((char *) p)[(_size_)+15] != '!'))
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rf_redzone_free_failed(p,(_size_),line,filen);
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free(p);
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}
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unsigned long rf_mem_alloc = 0;
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char *rf_real_Malloc(size, line, file)
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int size;
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int line;
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char *file;
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{
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void *pp;
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char *p;
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int tid;
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RF_LOCK_MUTEX(rf_debug_mem_mutex);
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rf_redzone_malloc(pp, size);
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p = pp;
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if (p == NULL) {
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RF_ERRORMSG3("Unable to malloc %d bytes at line %d file %s\n", size,
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line, file);
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}
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if (rf_memAmtDebug) {
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rf_mem_alloc += size;
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printf("%lu size %d %s:%d\n", rf_mem_alloc, size, file, line);
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}
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#if RF_UTILITY == 0
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if (rf_memDebug > 1) {
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rf_get_threadid(tid);
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printf("[%d] malloc 0x%lx - 0x%lx (%d) %s %d\n", tid, p, p+size, size,
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file, line);
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}
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#endif /* RF_UTILITY == 0 */
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if (rf_memDebug)
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rf_record_malloc(p, size, line, file);
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RF_UNLOCK_MUTEX(rf_debug_mem_mutex);
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return(p);
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}
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#if RF_UTILITY == 0
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char *rf_real_MallocAndAdd(size, alist, line, file)
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int size;
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RF_AllocListElem_t *alist;
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int line;
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char *file;
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{
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void *pp;
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char *p;
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int tid;
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RF_LOCK_MUTEX(rf_debug_mem_mutex);
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rf_redzone_malloc(pp, size);
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p = pp;
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if (p == NULL) {
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RF_ERRORMSG3("Unable to malloc %d bytes at line %d file %s\n", size,
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line, file);
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}
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if (rf_memAmtDebug) {
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rf_mem_alloc += size;
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printf("%lu size %d %s:%d\n", rf_mem_alloc, size, file, line);
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}
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if (rf_memDebug > 1) {
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rf_get_threadid(tid);
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printf("[%d] malloc+add 0x%lx - 0x%lx (%d) %s %d\n", tid, p, p+size,
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size, file, line);
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}
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if (alist) {
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rf_real_AddToAllocList(alist, pp, size, 0);
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}
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if (rf_memDebug)
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rf_record_malloc(p, size, line, file);
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RF_UNLOCK_MUTEX(rf_debug_mem_mutex);
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return(p);
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}
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#endif /* RF_UTILITY == 0 */
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char *rf_real_Calloc(nel, elsz, line, file)
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int nel;
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int elsz;
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int line;
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char *file;
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{
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int tid, size;
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void *pp;
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char *p;
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size = nel * elsz;
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RF_LOCK_MUTEX(rf_debug_mem_mutex);
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rf_redzone_calloc(pp, nel, elsz);
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p = pp;
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if (p == NULL) {
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RF_ERRORMSG4("Unable to calloc %d objects of size %d at line %d file %s\n",
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nel, elsz, line, file);
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return(NULL);
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}
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if (rf_memAmtDebug) {
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rf_mem_alloc += size;
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printf("%lu size %d %s:%d\n", rf_mem_alloc, size, file, line);
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}
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#if RF_UTILITY == 0
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if (rf_memDebug > 1) {
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rf_get_threadid(tid);
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printf("[%d] calloc 0x%lx - 0x%lx (%d,%d) %s %d\n", tid, p, p+size, nel,
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elsz, file, line);
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}
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#endif /* RF_UTILITY == 0 */
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if (rf_memDebug) {
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rf_record_malloc(p, size, line, file);
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}
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RF_UNLOCK_MUTEX(rf_debug_mem_mutex);
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return(p);
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}
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#if RF_UTILITY == 0
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char *rf_real_CallocAndAdd(nel, elsz, alist, line, file)
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int nel;
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int elsz;
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RF_AllocListElem_t *alist;
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int line;
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char *file;
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{
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int tid, size;
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void *pp;
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char *p;
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size = nel * elsz;
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RF_LOCK_MUTEX(rf_debug_mem_mutex);
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rf_redzone_calloc(pp, nel, elsz);
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p = pp;
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if (p == NULL) {
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RF_ERRORMSG4("Unable to calloc %d objs of size %d at line %d file %s\n",
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nel, elsz, line, file);
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return(NULL);
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}
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if (rf_memAmtDebug) {
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rf_mem_alloc += size;
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printf("%lu size %d %s:%d\n", rf_mem_alloc, size, file, line);
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}
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if (rf_memDebug > 1) {
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rf_get_threadid(tid);
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printf("[%d] calloc+add 0x%lx - 0x%lx (%d,%d) %s %d\n", tid, p,
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p+size, nel, elsz, file, line);
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}
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if (alist) {
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rf_real_AddToAllocList(alist, pp, size, 0);
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}
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if (rf_memDebug)
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rf_record_malloc(p, size, line, file);
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RF_UNLOCK_MUTEX(rf_debug_mem_mutex);
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return(p);
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}
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#endif /* RF_UTILITY == 0 */
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void rf_real_Free(p, sz, line, file)
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void *p;
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int sz;
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int line;
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char *file;
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{
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int tid;
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#if RF_UTILITY == 0
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if (rf_memDebug > 1) {
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rf_get_threadid(tid);
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printf("[%d] free 0x%lx - 0x%lx (%d) %s %d\n", tid, p, ((char *)p)+sz, sz,
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file, line);
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}
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#endif /* RF_UTILITY == 0 */
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RF_LOCK_MUTEX(rf_debug_mem_mutex);
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if (rf_memAmtDebug) {
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rf_mem_alloc -= sz;
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printf("%lu - size %d %s:%d\n", rf_mem_alloc, sz, file, line);
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}
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if (rf_memDebug) {
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rf_unrecord_malloc(p,sz);
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}
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rf_redzone_free(p);
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RF_UNLOCK_MUTEX(rf_debug_mem_mutex);
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}
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void rf_validate_mh_table()
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{
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int i, size;
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struct mh_struct *p;
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char *cp;
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return;
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for (i=0; i<RF_MH_TABLESIZE; i++) {
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for (p=mh_table[i]; p; p=p->next) if (p->allocated) {
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cp = ((char *) p->address) - 8;
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size = *((long *) cp);
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if ((((char *) cp)[(size)+8] != '!') || (((char *) cp)[(size)+15] != '!')) {
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rf_redzone_free_failed(cp,(size),__LINE__,__FILE__);
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}
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}
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}
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}
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static void rf_redzone_free_failed(ptr,size,line,file)
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void *ptr;
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int size;
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int line;
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char *file;
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{
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RF_ERRORMSG4("Free of 0x%lx (recorded size %d) at %d of %s detected redzone overrun\n",ptr,size,line,file);
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RF_ASSERT(0);
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}
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#endif /* !KERNEL */
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void rf_record_malloc(p, size, line, filen)
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void *p;
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int size, line;
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char *filen;
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{
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RF_ASSERT(size != 0);
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/*RF_LOCK_MUTEX(rf_debug_mem_mutex);*/
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memory_hash_insert(p, size, line, filen);
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tot_mem_in_use += size;
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/*RF_UNLOCK_MUTEX(rf_debug_mem_mutex);*/
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if ( (long) p == rf_memDebugAddress) {
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printf("Allocate: debug address allocated from line %d file %s\n",line,filen);
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}
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}
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void rf_unrecord_malloc(p, sz)
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void *p;
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int sz;
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{
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int size;
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/*RF_LOCK_MUTEX(rf_debug_mem_mutex);*/
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size = memory_hash_remove(p, sz);
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tot_mem_in_use -= size;
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/*RF_UNLOCK_MUTEX(rf_debug_mem_mutex);*/
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if ( (long) p == rf_memDebugAddress) {
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printf("Free: Found debug address\n"); /* this is really only a flag line for gdb */
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}
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}
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void rf_print_unfreed()
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{
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int i, foundone=0;
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struct mh_struct *p;
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for (i=0; i<RF_MH_TABLESIZE; i++) {
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for (p=mh_table[i]; p; p=p->next) if (p->allocated) {
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if (!foundone) printf("\n\nThere are unfreed memory locations at program shutdown:\n");
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foundone = 1;
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printf("Addr 0x%lx Size %d line %d file %s\n",
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(long)p->address,p->size,p->line,p->filen);
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}
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}
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if (tot_mem_in_use) {
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printf("%ld total bytes in use\n", tot_mem_in_use);
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}
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}
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int rf_ConfigureDebugMem(listp)
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RF_ShutdownList_t **listp;
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{
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int i, rc;
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|
|
rc = rf_create_managed_mutex(listp, &rf_debug_mem_mutex);
|
|
if (rc) {
|
|
RF_ERRORMSG3("Unable to init mutex file %s line %d rc=%d\n", __FILE__,
|
|
__LINE__, rc);
|
|
return(rc);
|
|
}
|
|
if (rf_memDebug) {
|
|
for (i=0; i<RF_MH_TABLESIZE; i++)
|
|
mh_table[i] = NULL;
|
|
mh_table_initialized=1;
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
#define HASHADDR(_a_) ( (((unsigned long) _a_)>>3) % RF_MH_TABLESIZE )
|
|
|
|
static void memory_hash_insert(addr, size, line, filen)
|
|
void *addr;
|
|
int size, line;
|
|
char *filen;
|
|
{
|
|
unsigned long bucket = HASHADDR(addr);
|
|
struct mh_struct *p;
|
|
|
|
RF_ASSERT(mh_table_initialized);
|
|
|
|
/* search for this address in the hash table */
|
|
for (p=mh_table[bucket]; p && (p->address != addr); p=p->next);
|
|
if (!p) {
|
|
#ifdef KERNEL
|
|
RF_Malloc(p,sizeof(struct mh_struct),(struct mh_struct *));
|
|
#else /* KERNEL */
|
|
p = (struct mh_struct *)malloc(sizeof(struct mh_struct));
|
|
#endif /* KERNEL */
|
|
RF_ASSERT(p);
|
|
p->next = mh_table[bucket];
|
|
mh_table[bucket] = p;
|
|
p->address = addr;
|
|
p->allocated = 0;
|
|
}
|
|
if (p->allocated) {
|
|
printf("ERROR: reallocated address 0x%lx from line %d, file %s without intervening free\n",(long) addr, line, filen);
|
|
printf(" last allocated from line %d file %s\n",p->line, p->filen);
|
|
RF_ASSERT(0);
|
|
}
|
|
p->size = size; p->line = line; p->filen = filen;
|
|
p->allocated = 1;
|
|
}
|
|
|
|
static int memory_hash_remove(addr, sz)
|
|
void *addr;
|
|
int sz;
|
|
{
|
|
unsigned long bucket = HASHADDR(addr);
|
|
struct mh_struct *p;
|
|
|
|
RF_ASSERT(mh_table_initialized);
|
|
for (p=mh_table[bucket]; p && (p->address != addr); p=p->next);
|
|
if (!p) {
|
|
printf("ERROR: freeing never-allocated address 0x%lx\n",(long) addr);
|
|
RF_PANIC();
|
|
}
|
|
if (!p->allocated) {
|
|
printf("ERROR: freeing unallocated address 0x%lx. Last allocation line %d file %s\n",(long) addr, p->line, p->filen);
|
|
RF_PANIC();
|
|
}
|
|
if (sz > 0 && p->size != sz) { /* you can suppress this error by using a negative value as the size to free */
|
|
printf("ERROR: incorrect size at free for address 0x%lx: is %d should be %d. Alloc at line %d of file %s\n",(unsigned long) addr, sz, p->size,p->line, p->filen);
|
|
RF_PANIC();
|
|
}
|
|
p->allocated = 0;
|
|
return(p->size);
|
|
}
|
|
|
|
void rf_ReportMaxMem()
|
|
{
|
|
printf("Max memory used: %d bytes\n",(int)max_mem);
|
|
#ifndef KERNEL
|
|
fflush(stdout);
|
|
fprintf(stderr,"Max memory used: %d bytes\n",max_mem);
|
|
fflush(stderr);
|
|
#endif /* !KERNEL */
|
|
}
|