483 lines
11 KiB
C
483 lines
11 KiB
C
/* $NetBSD: rf_debugMem.c,v 1.3 1999/02/05 00:06:08 oster Exp $ */
|
|
/*
|
|
* Copyright (c) 1995 Carnegie-Mellon University.
|
|
* All rights reserved.
|
|
*
|
|
* Author: Daniel Stodolsky, Mark Holland, Jim Zelenka
|
|
*
|
|
* Permission to use, copy, modify and distribute this software and
|
|
* its documentation is hereby granted, provided that both the copyright
|
|
* notice and this permission notice appear in all copies of the
|
|
* software, derivative works or modified versions, and any portions
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
*
|
|
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
|
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
|
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
|
*
|
|
* Carnegie Mellon requests users of this software to return to
|
|
*
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
* School of Computer Science
|
|
* Carnegie Mellon University
|
|
* Pittsburgh PA 15213-3890
|
|
*
|
|
* any improvements or extensions that they make and grant Carnegie the
|
|
* rights to redistribute these changes.
|
|
*/
|
|
|
|
/* debugMem.c: memory usage debugging stuff.
|
|
* Malloc, Calloc, and Free are #defined everywhere
|
|
* to do_malloc, do_calloc, and do_free.
|
|
*
|
|
* if RF_UTILITY is nonzero, it means were compiling one of the
|
|
* raidframe utility programs, such as rfctrl or smd. In this
|
|
* case, we eliminate all references to the threads package
|
|
* and to the allocation list stuff.
|
|
*/
|
|
|
|
#include "rf_types.h"
|
|
#include "rf_sys.h"
|
|
|
|
#if RF_UTILITY == 0
|
|
#include "rf_threadstuff.h"
|
|
#include "rf_threadid.h"
|
|
#include "rf_options.h"
|
|
#else /* RF_UTILITY == 0 */
|
|
#include "rf_utility.h"
|
|
#endif /* RF_UTILITY == 0 */
|
|
|
|
#include "rf_debugMem.h"
|
|
#include "rf_general.h"
|
|
|
|
static long tot_mem_in_use = 0, max_mem = 0;
|
|
|
|
/* Hash table of information about memory allocations */
|
|
#define RF_MH_TABLESIZE 1000
|
|
|
|
struct mh_struct {
|
|
void *address;
|
|
int size;
|
|
int line;
|
|
char *filen;
|
|
char allocated;
|
|
struct mh_struct *next;
|
|
};
|
|
static struct mh_struct *mh_table[RF_MH_TABLESIZE];
|
|
RF_DECLARE_MUTEX(rf_debug_mem_mutex)
|
|
static int mh_table_initialized = 0;
|
|
|
|
static void memory_hash_insert(void *addr, int size, int line, char *filen);
|
|
static int memory_hash_remove(void *addr, int sz);
|
|
|
|
#ifndef _KERNEL /* no redzones or "real_" routines in the
|
|
* kernel */
|
|
|
|
static void rf_redzone_free_failed(void *ptr, int size, int line, char *file);
|
|
|
|
void *rf_real_redzone_malloc(_size_)
|
|
int _size_;
|
|
{
|
|
char *p;
|
|
|
|
rf_validate_mh_table();
|
|
p = malloc((_size_) + 16);
|
|
if (p == NULL)
|
|
return (p);
|
|
RF_ASSERT(p);
|
|
*((long *) p) = (_size_);
|
|
((char *) p)[(_size_) + 8] = '!';
|
|
((char *) p)[(_size_) + 15] = '!';
|
|
p += 8;
|
|
return (p);
|
|
}
|
|
|
|
void *
|
|
rf_real_redzone_calloc(_n_, _size_)
|
|
int _n_, _size_;
|
|
{
|
|
char *p;
|
|
int _sz_;
|
|
|
|
rf_validate_mh_table();
|
|
_sz_ = (_n_) * (_size_);
|
|
p = malloc((_sz_) + 16);
|
|
if (p == NULL)
|
|
return (p);
|
|
bzero(p, (_sz_) + 16);
|
|
*((long *) p) = (_sz_);
|
|
((char *) p)[(_sz_) + 8] = '!';
|
|
((char *) p)[(_sz_) + 15] = '!';
|
|
p += 8;
|
|
return (p);
|
|
}
|
|
|
|
void
|
|
rf_real_redzone_free(p, line, filen)
|
|
char *p;
|
|
int line;
|
|
char *filen;
|
|
{
|
|
unsigned long _size_;
|
|
|
|
rf_validate_mh_table();
|
|
p -= 8;
|
|
_size_ = *((long *) p);
|
|
if ((((char *) p)[(_size_) + 8] != '!') || (((char *) p)[(_size_) + 15] != '!'))
|
|
rf_redzone_free_failed(p, (_size_), line, filen);
|
|
free(p);
|
|
}
|
|
|
|
unsigned long rf_mem_alloc = 0;
|
|
|
|
char *
|
|
rf_real_Malloc(size, line, file)
|
|
int size;
|
|
int line;
|
|
char *file;
|
|
{
|
|
void *pp;
|
|
char *p;
|
|
int tid;
|
|
|
|
RF_LOCK_MUTEX(rf_debug_mem_mutex);
|
|
rf_redzone_malloc(pp, size);
|
|
p = pp;
|
|
if (p == NULL) {
|
|
RF_ERRORMSG3("Unable to malloc %d bytes at line %d file %s\n", size,
|
|
line, file);
|
|
}
|
|
if (rf_memAmtDebug) {
|
|
rf_mem_alloc += size;
|
|
printf("%lu size %d %s:%d\n", rf_mem_alloc, size, file, line);
|
|
}
|
|
#if RF_UTILITY == 0
|
|
if (rf_memDebug > 1) {
|
|
rf_get_threadid(tid);
|
|
printf("[%d] malloc 0x%lx - 0x%lx (%d) %s %d\n", tid, p, p + size, size,
|
|
file, line);
|
|
}
|
|
#endif /* RF_UTILITY == 0 */
|
|
if (rf_memDebug)
|
|
rf_record_malloc(p, size, line, file);
|
|
RF_UNLOCK_MUTEX(rf_debug_mem_mutex);
|
|
return (p);
|
|
}
|
|
#if RF_UTILITY == 0
|
|
char *
|
|
rf_real_MallocAndAdd(size, alist, line, file)
|
|
int size;
|
|
RF_AllocListElem_t *alist;
|
|
int line;
|
|
char *file;
|
|
{
|
|
void *pp;
|
|
char *p;
|
|
int tid;
|
|
|
|
RF_LOCK_MUTEX(rf_debug_mem_mutex);
|
|
rf_redzone_malloc(pp, size);
|
|
p = pp;
|
|
if (p == NULL) {
|
|
RF_ERRORMSG3("Unable to malloc %d bytes at line %d file %s\n", size,
|
|
line, file);
|
|
}
|
|
if (rf_memAmtDebug) {
|
|
rf_mem_alloc += size;
|
|
printf("%lu size %d %s:%d\n", rf_mem_alloc, size, file, line);
|
|
}
|
|
if (rf_memDebug > 1) {
|
|
rf_get_threadid(tid);
|
|
printf("[%d] malloc+add 0x%lx - 0x%lx (%d) %s %d\n", tid, p, p + size,
|
|
size, file, line);
|
|
}
|
|
if (alist) {
|
|
rf_real_AddToAllocList(alist, pp, size, 0);
|
|
}
|
|
if (rf_memDebug)
|
|
rf_record_malloc(p, size, line, file);
|
|
RF_UNLOCK_MUTEX(rf_debug_mem_mutex);
|
|
return (p);
|
|
}
|
|
#endif /* RF_UTILITY == 0 */
|
|
|
|
char *
|
|
rf_real_Calloc(nel, elsz, line, file)
|
|
int nel;
|
|
int elsz;
|
|
int line;
|
|
char *file;
|
|
{
|
|
int tid, size;
|
|
void *pp;
|
|
char *p;
|
|
|
|
size = nel * elsz;
|
|
RF_LOCK_MUTEX(rf_debug_mem_mutex);
|
|
rf_redzone_calloc(pp, nel, elsz);
|
|
p = pp;
|
|
if (p == NULL) {
|
|
RF_ERRORMSG4("Unable to calloc %d objects of size %d at line %d file %s\n",
|
|
nel, elsz, line, file);
|
|
return (NULL);
|
|
}
|
|
if (rf_memAmtDebug) {
|
|
rf_mem_alloc += size;
|
|
printf("%lu size %d %s:%d\n", rf_mem_alloc, size, file, line);
|
|
}
|
|
#if RF_UTILITY == 0
|
|
if (rf_memDebug > 1) {
|
|
rf_get_threadid(tid);
|
|
printf("[%d] calloc 0x%lx - 0x%lx (%d,%d) %s %d\n", tid, p, p + size, nel,
|
|
elsz, file, line);
|
|
}
|
|
#endif /* RF_UTILITY == 0 */
|
|
if (rf_memDebug) {
|
|
rf_record_malloc(p, size, line, file);
|
|
}
|
|
RF_UNLOCK_MUTEX(rf_debug_mem_mutex);
|
|
return (p);
|
|
}
|
|
#if RF_UTILITY == 0
|
|
char *
|
|
rf_real_CallocAndAdd(nel, elsz, alist, line, file)
|
|
int nel;
|
|
int elsz;
|
|
RF_AllocListElem_t *alist;
|
|
int line;
|
|
char *file;
|
|
{
|
|
int tid, size;
|
|
void *pp;
|
|
char *p;
|
|
|
|
size = nel * elsz;
|
|
RF_LOCK_MUTEX(rf_debug_mem_mutex);
|
|
rf_redzone_calloc(pp, nel, elsz);
|
|
p = pp;
|
|
if (p == NULL) {
|
|
RF_ERRORMSG4("Unable to calloc %d objs of size %d at line %d file %s\n",
|
|
nel, elsz, line, file);
|
|
return (NULL);
|
|
}
|
|
if (rf_memAmtDebug) {
|
|
rf_mem_alloc += size;
|
|
printf("%lu size %d %s:%d\n", rf_mem_alloc, size, file, line);
|
|
}
|
|
if (rf_memDebug > 1) {
|
|
rf_get_threadid(tid);
|
|
printf("[%d] calloc+add 0x%lx - 0x%lx (%d,%d) %s %d\n", tid, p,
|
|
p + size, nel, elsz, file, line);
|
|
}
|
|
if (alist) {
|
|
rf_real_AddToAllocList(alist, pp, size, 0);
|
|
}
|
|
if (rf_memDebug)
|
|
rf_record_malloc(p, size, line, file);
|
|
RF_UNLOCK_MUTEX(rf_debug_mem_mutex);
|
|
return (p);
|
|
}
|
|
#endif /* RF_UTILITY == 0 */
|
|
|
|
void
|
|
rf_real_Free(p, sz, line, file)
|
|
void *p;
|
|
int sz;
|
|
int line;
|
|
char *file;
|
|
{
|
|
int tid;
|
|
|
|
#if RF_UTILITY == 0
|
|
if (rf_memDebug > 1) {
|
|
rf_get_threadid(tid);
|
|
printf("[%d] free 0x%lx - 0x%lx (%d) %s %d\n", tid, p, ((char *) p) + sz, sz,
|
|
file, line);
|
|
}
|
|
#endif /* RF_UTILITY == 0 */
|
|
RF_LOCK_MUTEX(rf_debug_mem_mutex);
|
|
if (rf_memAmtDebug) {
|
|
rf_mem_alloc -= sz;
|
|
printf("%lu - size %d %s:%d\n", rf_mem_alloc, sz, file, line);
|
|
}
|
|
if (rf_memDebug) {
|
|
rf_unrecord_malloc(p, sz);
|
|
}
|
|
rf_redzone_free(p);
|
|
RF_UNLOCK_MUTEX(rf_debug_mem_mutex);
|
|
}
|
|
|
|
void
|
|
rf_validate_mh_table()
|
|
{
|
|
int i, size;
|
|
struct mh_struct *p;
|
|
char *cp;
|
|
|
|
return;
|
|
for (i = 0; i < RF_MH_TABLESIZE; i++) {
|
|
for (p = mh_table[i]; p; p = p->next)
|
|
if (p->allocated) {
|
|
cp = ((char *) p->address) - 8;
|
|
size = *((long *) cp);
|
|
if ((((char *) cp)[(size) + 8] != '!') || (((char *) cp)[(size) + 15] != '!')) {
|
|
rf_redzone_free_failed(cp, (size), __LINE__, __FILE__);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
rf_redzone_free_failed(ptr, size, line, file)
|
|
void *ptr;
|
|
int size;
|
|
int line;
|
|
char *file;
|
|
{
|
|
RF_ERRORMSG4("Free of 0x%lx (recorded size %d) at %d of %s detected redzone overrun\n", ptr, size, line, file);
|
|
RF_ASSERT(0);
|
|
}
|
|
#endif /* !_KERNEL */
|
|
|
|
void
|
|
rf_record_malloc(p, size, line, filen)
|
|
void *p;
|
|
int size, line;
|
|
char *filen;
|
|
{
|
|
RF_ASSERT(size != 0);
|
|
|
|
/* RF_LOCK_MUTEX(rf_debug_mem_mutex); */
|
|
memory_hash_insert(p, size, line, filen);
|
|
tot_mem_in_use += size;
|
|
/* RF_UNLOCK_MUTEX(rf_debug_mem_mutex); */
|
|
if ((long) p == rf_memDebugAddress) {
|
|
printf("Allocate: debug address allocated from line %d file %s\n", line, filen);
|
|
}
|
|
}
|
|
|
|
void
|
|
rf_unrecord_malloc(p, sz)
|
|
void *p;
|
|
int sz;
|
|
{
|
|
int size;
|
|
|
|
/* RF_LOCK_MUTEX(rf_debug_mem_mutex); */
|
|
size = memory_hash_remove(p, sz);
|
|
tot_mem_in_use -= size;
|
|
/* RF_UNLOCK_MUTEX(rf_debug_mem_mutex); */
|
|
if ((long) p == rf_memDebugAddress) {
|
|
printf("Free: Found debug address\n"); /* this is really only a
|
|
* flag line for gdb */
|
|
}
|
|
}
|
|
|
|
void
|
|
rf_print_unfreed()
|
|
{
|
|
int i, foundone = 0;
|
|
struct mh_struct *p;
|
|
|
|
for (i = 0; i < RF_MH_TABLESIZE; i++) {
|
|
for (p = mh_table[i]; p; p = p->next)
|
|
if (p->allocated) {
|
|
if (!foundone)
|
|
printf("\n\nThere are unfreed memory locations at program shutdown:\n");
|
|
foundone = 1;
|
|
printf("Addr 0x%lx Size %d line %d file %s\n",
|
|
(long) p->address, p->size, p->line, p->filen);
|
|
}
|
|
}
|
|
if (tot_mem_in_use) {
|
|
printf("%ld total bytes in use\n", tot_mem_in_use);
|
|
}
|
|
}
|
|
|
|
int
|
|
rf_ConfigureDebugMem(listp)
|
|
RF_ShutdownList_t **listp;
|
|
{
|
|
int i, rc;
|
|
|
|
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) {
|
|
RF_Malloc(p, sizeof(struct mh_struct), (struct mh_struct *));
|
|
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);
|
|
}
|