#endif
/** Non-snapshotting calloc for our use. */
-void *model_calloc(size_t count, size_t size) {
+void *model_calloc(size_t count, size_t size)
+{
#if USE_MPROTECT_SNAPSHOT
- static void *(*callocp)(size_t count, size_t size)=NULL;
+ static void *(*callocp)(size_t count, size_t size) = NULL;
char *error;
void *ptr;
/* get address of libc malloc */
if (!callocp) {
- callocp = ( void * ( * )( size_t, size_t ) )dlsym(RTLD_NEXT, "calloc");
+ callocp = (void * (*)(size_t, size_t))dlsym(RTLD_NEXT, "calloc");
if ((error = dlerror()) != NULL) {
fputs(error, stderr);
exit(EXIT_FAILURE);
ptr = callocp(count, size);
return ptr;
#else
- if( !snapshotrecord) {
+ if (!snapshotrecord) {
createSharedMemory();
}
- if( NULL == sStaticSpace )
- sStaticSpace = create_mspace_with_base( ( void * )( snapshotrecord->mSharedMemoryBase ), SHARED_MEMORY_DEFAULT -sizeof( struct SnapShot ), 1 );
- return mspace_calloc( sStaticSpace, count, size );
+ if (NULL == sStaticSpace)
+ sStaticSpace = create_mspace_with_base(( void *)( snapshotrecord->mSharedMemoryBase), SHARED_MEMORY_DEFAULT -sizeof(struct SnapShot), 1);
+ return mspace_calloc(sStaticSpace, count, size);
#endif
}
/** Non-snapshotting malloc for our use. */
-void *model_malloc(size_t size) {
+void *model_malloc(size_t size)
+{
#if USE_MPROTECT_SNAPSHOT
- static void *(*mallocp)(size_t size)=NULL;
+ static void *(*mallocp)(size_t size) = NULL;
char *error;
void *ptr;
/* get address of libc malloc */
if (!mallocp) {
- mallocp = ( void * ( * )( size_t ) )dlsym(RTLD_NEXT, "malloc");
+ mallocp = (void * (*)(size_t))dlsym(RTLD_NEXT, "malloc");
if ((error = dlerror()) != NULL) {
fputs(error, stderr);
exit(EXIT_FAILURE);
ptr = mallocp(size);
return ptr;
#else
- if( !snapshotrecord) {
+ if (!snapshotrecord) {
createSharedMemory();
}
- if( NULL == sStaticSpace )
- sStaticSpace = create_mspace_with_base( ( void * )( snapshotrecord->mSharedMemoryBase ), SHARED_MEMORY_DEFAULT -sizeof( struct SnapShot ), 1 );
- return mspace_malloc( sStaticSpace, size );
+ if (NULL == sStaticSpace)
+ sStaticSpace = create_mspace_with_base(( void *)( snapshotrecord->mSharedMemoryBase), SHARED_MEMORY_DEFAULT -sizeof(struct SnapShot), 1);
+ return mspace_malloc(sStaticSpace, size);
#endif
}
free(ptr);
}
-void *system_malloc( size_t size ){
+void *system_malloc(size_t size)
+{
static void *(*mallocp)(size_t size);
char *error;
void *ptr;
/* get address of libc malloc */
if (!mallocp) {
- mallocp = ( void * ( * )( size_t ) )dlsym(RTLD_NEXT, "malloc");
+ mallocp = (void * (*)(size_t))dlsym(RTLD_NEXT, "malloc");
if ((error = dlerror()) != NULL) {
fputs(error, stderr);
exit(EXIT_FAILURE);
}
/** Non-snapshotting free for our use. */
-void model_free(void *ptr) {
+void model_free(void *ptr)
+{
#if USE_MPROTECT_SNAPSHOT
static void (*freep)(void *);
char *error;
/* get address of libc free */
if (!freep) {
- freep = ( void ( * )( void * ) )dlsym(RTLD_NEXT, "free");
+ freep = ( void ( * )( void *))dlsym(RTLD_NEXT, "free");
if ((error = dlerror()) != NULL) {
fputs(error, stderr);
exit(EXIT_FAILURE);
}
freep(ptr);
#else
- mspace_free( sStaticSpace, ptr );
+ mspace_free(sStaticSpace, ptr);
#endif
}
-
/** @brief Global mspace reference for the snapshotting heap */
mspace mySpace = NULL;
#define BOOTSTRAPBYTES 4096
char bootstrapmemory[BOOTSTRAPBYTES];
-size_t offset=0;
+size_t offset = 0;
-void * HandleEarlyAllocationRequest( size_t sz ){
- /*Align to 8 byte boundary*/
- sz=(sz+7)&~7;
+void * HandleEarlyAllocationRequest(size_t sz)
+{
+ /* Align to 8 byte boundary */
+ sz = (sz + 7) & ~7;
if (sz > (BOOTSTRAPBYTES-offset)) {
printf("OUT OF BOOTSTRAP MEMORY\n");
exit(EXIT_FAILURE);
}
- void * pointer= (void *) & bootstrapmemory[offset];
- offset+=sz;
+ void *pointer= (void *)&bootstrapmemory[offset];
+ offset += sz;
return pointer;
}
-/** Check whether this is bootstrapped memory that we should not
- free. */
-
-bool DontFree( void * ptr ){
- return (ptr>=(&bootstrapmemory[0])&&ptr<(&bootstrapmemory[BOOTSTRAPBYTES]));
+/** Check whether this is bootstrapped memory that we should not free */
+bool DontFree(void *ptr)
+{
+ return (ptr >= (&bootstrapmemory[0]) && ptr < (&bootstrapmemory[BOOTSTRAPBYTES]));
}
/** @brief Snapshotting malloc implementation for user programs */
-void *malloc( size_t size )
+void *malloc(size_t size)
{
if (mySpace) {
- void *tmp=mspace_malloc( mySpace, size );
+ void *tmp = mspace_malloc(mySpace, size);
ASSERT(tmp);
return tmp;
} else
- return HandleEarlyAllocationRequest( size );
+ return HandleEarlyAllocationRequest(size);
}
/** @brief Snapshotting free implementation for user programs */
-void free( void * ptr ){
+void free(void * ptr)
+{
if (!DontFree(ptr))
mspace_free(mySpace, ptr);
}
/** @brief Snapshotting realloc implementation for user programs */
-void *realloc( void *ptr, size_t size )
+void *realloc(void *ptr, size_t size)
{
void *tmp = mspace_realloc(mySpace, ptr, size);
ASSERT(tmp);
}
/** @brief Snapshotting calloc implementation for user programs */
-void * calloc( size_t num, size_t size )
+void * calloc(size_t num, size_t size)
{
if (mySpace) {
void *tmp = mspace_calloc(mySpace, num, size);
ASSERT(tmp);
return tmp;
} else {
- void *tmp=HandleEarlyAllocationRequest( size * num );
- std::memset( tmp, 0, size * num );
+ void *tmp = HandleEarlyAllocationRequest(size * num);
+ std::memset(tmp, 0, size * num);
return tmp;
}
}