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- /*
- * DUMA - Red-Zone memory allocator.
- * Copyright (C) 2006 Michael Eddington <meddington@gmail.com>
- * Copyright (C) 2002-2005 Hayati Ayguen <h_ayguen@web.de>, Procitec GmbH
- * Copyright (C) 1987-1999 Bruce Perens <bruce@perens.com>
- * License: GNU GPL (GNU General Public License, see COPYING-GPL)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- *
- * FILE CONTENTS:
- * header file for inclusion from YOUR application code
- */
- /* explicitly no "#ifndef _DUMA_H_" to allow mutliple inclusions
- * within single source file with inclusion of noduma.h in between
- */
- #include <stdlib.h>
- /*
- * #include <stdlib.h>
- *
- * You must include <stdlib.h> before including <duma.h> !
- *
- */
- /* for enabling inclusion of duma.h after inclusion of efencint.h */
- /* remove previous definitions */
- #define SKIP_DUMA_NO_CXX
- #include "noduma.h"
- #undef SKIP_DUMA_NO_CXX
- #include "duma_config.h"
- #ifdef __cplusplus
- #define DUMA_EXTERN_C extern "C"
- #else
- #define DUMA_EXTERN_C extern
- #endif
- #ifdef DUMA_NO_DUMA
- /* enable these macros even in release code, but do nothing */
- #define DUMA_newFrame() do { } while(0)
- #define DUMA_delFrame() do { } while(0)
- #define DUMA_SET_ALIGNMENT(V) do { } while(0)
- #define DUMA_SET_PROTECT_BELOW(V) do { } while(0)
- #define DUMA_SET_FILL(V) do { } while(0)
- #define DUMA_ASSERT(EXPR) do { } while(0)
- #define DUMA_CHECK(BASEADR) do { } while(0)
- #define DUMA_CHECKALL() do { } while(0)
- #define CA_DECLARE(NAME,SIZE) do { } while(0)
- #define CA_DEFINE(TYPE,NAME,SIZE) TYPE NAME[SIZE]
- #define CA_REF(NAME,INDEX) NAME[INDEX]
- #else /* ifndef DUMA_NO_DUMA */
- #ifndef DUMA_EXTERNS_DECLARED
- #define DUMA_EXTERNS_DECLARED
- /* global DUMA variables */
- DUMA_EXTERN_C int DUMA_OUTPUT_DEBUG;
- DUMA_EXTERN_C int DUMA_OUTPUT_STDOUT;
- DUMA_EXTERN_C int DUMA_OUTPUT_STDERR;
- DUMA_EXTERN_C char* DUMA_OUTPUT_FILE;
- DUMA_EXTERN_C int DUMA_OUTPUT_STACKTRACE;
- #endif /* DUMA_EXTERNS_DECLARED */
- /* set Maximum Delete Depth (depth of recursive destructor calls) */
- #ifndef DUMA_MAX_DEL_DEPTH
- #define DUMA_MAX_DEL_DEPTH 256
- #endif
- #ifndef DUMA_TLSVARTYPE_DEFINED
- #define DUMA_TLSVARTYPE_DEFINED
- /* TODO following variables should exist per thread ("thread-local") */
- typedef struct
- {
- /*
- * ALIGNMENT is a global variable used to control the default alignment
- * of buffers returned by malloc(), calloc(), and realloc(). It is all-caps
- * so that its name matches the name of the environment variable that is used
- * to set it. This gives the programmer one less name to remember.
- */
- int ALIGNMENT;
- /*
- * PROTECT_BELOW is used to modify the behavior of the allocator. When
- * its value is non-zero, the allocator will place an inaccessable page
- * immediately _before_ the malloc buffer in the address space, instead
- * of _after_ it. Use this to detect malloc buffer under-runs, rather than
- * over-runs. It won't detect both at the same time, so you should test your
- * software twice, once with this value clear, and once with it set.
- */
- int PROTECT_BELOW;
- /*
- * FILL is set to 0-255 if DUMA should fill all new allocated
- * memory with the specified value. Set to -1 when DUMA should not
- * initialise allocated memory.
- * default is set to initialise with 255, cause many programs rely on
- * initialisation to 0!
- */
- int FILL;
- #if !defined(DUMA_NO_CPP_SUPPORT) && !defined(DUMA_NO_LEAKDETECTION)
- int Magic;
- int DelPtr;
- const char * DelFile[DUMA_MAX_DEL_DEPTH];
- int DelLine[DUMA_MAX_DEL_DEPTH];
- #endif
- } DUMA_TLSVARS_T;
- #endif
- #ifndef DUMA_GLOBALS_DEFINED
- #define DUMA_GLOBALS_DEFINED
- typedef struct
- {
- /* Protection Space A */
- char acSpaceA[2 * DUMA_PAGE_SIZE];
- /* Variable: _duma_allocList
- *
- * _DUMA_allocList points to the array of slot structures used to manage the
- * malloc arena.
- */
- struct _DUMA_Slot * allocList;
- /* Variable: _duma_null_addr
- *
- * _duma_null_addr is the address malloc() or C++ operator new returns, when size is 0
- * two pages get reserved and protected
- */
- void * null_addr;
- /* Variable */
- DUMA_TLSVARS_T TLS;
- /* Protection Space B */
- char acSpaceB[2 * DUMA_PAGE_SIZE];
- } DUMA_GLOBALVARS_T;
- DUMA_EXTERN_C DUMA_GLOBALVARS_T _duma_g;
- #endif /* DUMA_GLOBALS_DEFINED */
- #define GET_DUMA_TLSVARS() (&_duma_g.TLS)
- #ifndef DUMA_SET_ALIGNMENT
- #define DUMA_SET_ALIGNMENT(V) GET_DUMA_TLSVARS()->ALIGNMENT = (V)
- #endif
- #ifndef DUMA_SET_PROTECT_BELOW
- #define DUMA_SET_PROTECT_BELOW(V) GET_DUMA_TLSVARS()->PROTECT_BELOW = (V)
- #endif
- #ifndef DUMA_SET_FILL
- #define DUMA_SET_FILL(V) GET_DUMA_TLSVARS()->FILL = (V)
- #endif
- #ifndef DUMA_ENUMS_DECLARED
- #define DUMA_ENUMS_DECLARED
- /* allocator defines the type of calling allocator/deallocator function */
- enum _DUMA_Allocator
- {
- EFA_INT_ALLOC
- , EFA_INT_DEALLOC
- , EFA_MALLOC
- , EFA_CALLOC
- , EFA_FREE
- , EFA_MEMALIGN
- , EFA_POSIX_MEMALIGN
- , EFA_REALLOC
- , EFA_VALLOC
- , EFA_STRDUP
- , EFA_NEW_ELEM
- , EFA_DEL_ELEM
- , EFA_NEW_ARRAY
- , EFA_DEL_ARRAY
- /* use following enums when calling _duma_allocate()/_duma_deallocate()
- * from user defined member operators
- */
- , EFA_MEMBER_NEW_ELEM
- , EFA_MEMBER_DEL_ELEM
- , EFA_MEMBER_NEW_ARRAY
- , EFA_MEMBER_DEL_ARRAY
- };
- enum _DUMA_FailReturn
- {
- DUMA_FAIL_NULL
- , DUMA_FAIL_ENV
- };
- #endif /* DUMA_ENUMS_DECLARED */
- #ifndef DUMA_FUNCTIONS_DECLARED
- #define DUMA_FUNCTIONS_DECLARED
- DUMA_EXTERN_C void _duma_init(void);
- DUMA_EXTERN_C void _duma_assert(const char * exprstr, const char * filename, int lineno);
- DUMA_EXTERN_C void duma_check(void * address);
- DUMA_EXTERN_C void duma_checkAll();
- DUMA_EXTERN_C void * duma_alloc_return( void * address );
- #ifdef DUMA_EXPLICIT_INIT
- DUMA_EXTERN_C void duma_init(void);
- #endif
- #ifndef DUMA_NO_LEAKDETECTION
- DUMA_EXTERN_C void * _duma_allocate(size_t alignment, size_t userSize, int protectBelow, int fillByte, int protectAllocList, enum _DUMA_Allocator allocator, enum _DUMA_FailReturn fail, const char * filename, int lineno);
- DUMA_EXTERN_C void _duma_deallocate(void * baseAdr, int protectAllocList, enum _DUMA_Allocator allocator, const char * filename, int lineno);
- DUMA_EXTERN_C void * _duma_malloc(size_t size, const char * filename, int lineno);
- DUMA_EXTERN_C void * _duma_calloc(size_t elemCount, size_t elemSize, const char * filename, int lineno);
- DUMA_EXTERN_C void _duma_free(void * baseAdr, const char * filename, int lineno);
- DUMA_EXTERN_C void * _duma_memalign(size_t alignment, size_t userSize, const char * filename, int lineno);
- DUMA_EXTERN_C int _duma_posix_memalign(void **memptr, size_t alignment, size_t userSize, const char * filename, int lineno);
- DUMA_EXTERN_C void * _duma_realloc(void * baseAdr, size_t newSize, const char * filename, int lineno);
- DUMA_EXTERN_C void * _duma_valloc(size_t size, const char * filename, int lineno);
- DUMA_EXTERN_C char * _duma_strdup(const char *str, const char * filename, int lineno);
- DUMA_EXTERN_C void * _duma_memcpy(void *dest, const void *src, size_t size, const char * filename, int lineno);
- DUMA_EXTERN_C void * _duma_memmove(void *dest, const void *src, size_t size);
- DUMA_EXTERN_C char * _duma_strcpy(char *dest, const char *src, const char * filename, int lineno);
- DUMA_EXTERN_C char * _duma_strncpy(char *dest, const char *src, size_t size, const char * filename, int lineno);
- DUMA_EXTERN_C char * _duma_strcat(char *dest, const char *src, const char * filename, int lineno);
- DUMA_EXTERN_C char * _duma_strncat(char *dest, const char *src, size_t size, const char * filename, int lineno);
- DUMA_EXTERN_C void DUMA_newFrame(void);
- DUMA_EXTERN_C void DUMA_delFrame(void);
- #else /* DUMA_NO_LEAKDETECTION */
- DUMA_EXTERN_C void * _duma_allocate(size_t alignment, size_t userSize, int protectBelow, int fillByte, int protectAllocList, enum _DUMA_Allocator allocator, enum _DUMA_FailReturn fail);
- DUMA_EXTERN_C void _duma_deallocate(void * baseAdr, int protectAllocList, enum _DUMA_Allocator allocator);
- DUMA_EXTERN_C void * _duma_malloc(size_t size);
- DUMA_EXTERN_C void * _duma_calloc(size_t elemCount, size_t elemSize);
- DUMA_EXTERN_C void _duma_free(void * baseAdr);
- DUMA_EXTERN_C void * _duma_memalign(size_t alignment, size_t userSize);
- DUMA_EXTERN_C int _duma_posix_memalign(void **memptr, size_t alignment, size_t userSize);
- DUMA_EXTERN_C void * _duma_realloc(void * baseAdr, size_t newSize);
- DUMA_EXTERN_C void * _duma_valloc(size_t size);
- DUMA_EXTERN_C char * _duma_strdup(const char *str);
- DUMA_EXTERN_C void * _duma_memcpy(void *dest, const void *src, size_t size);
- DUMA_EXTERN_C void * _duma_memmove(void *dest, const void *src, size_t size);
- DUMA_EXTERN_C char * _duma_strcpy(char *dest, const char *src);
- DUMA_EXTERN_C char * _duma_strncpy(char *dest, const char *src, size_t size);
- DUMA_EXTERN_C char * _duma_strcat(char *dest, const char *src);
- DUMA_EXTERN_C char * _duma_strncat(char *dest, const char *src, size_t size);
- #endif /* DUMA_NO_LEAKDETECTION */
- #endif /* DUMA_FUNCTIONS_DECLARED */
- #ifndef DUMA_SKIP_SETUP
- #ifndef DUMA_NO_LEAKDETECTION
- #define malloc(SIZE) _duma_malloc(SIZE, __FILE__, __LINE__)
- #define calloc(ELEMCOUNT, ELEMSIZE) _duma_calloc(ELEMCOUNT, ELEMSIZE, __FILE__, __LINE__)
- #define free(BASEADR) _duma_free(BASEADR, __FILE__, __LINE__)
- #define memalign(ALIGNMENT, SIZE) _duma_memalign(ALIGNMENT, SIZE, __FILE__, __LINE__)
- #define posix_memalign(MEMPTR, ALIGNMENT, SIZE) _duma_posix_memalign(MEMPTR, ALIGNMENT, SIZE, __FILE__, __LINE__)
- #define realloc(BASEADR, NEWSIZE) _duma_realloc(BASEADR, NEWSIZE, __FILE__, __LINE__)
- #define valloc(SIZE) _duma_valloc(SIZE, __FILE__, __LINE__)
- #define strdup(STR) _duma_strdup(STR, __FILE__, __LINE__)
- #define memcpy(DEST, SRC, SIZE) _duma_memcpy(DEST, SRC, SIZE, __FILE__, __LINE__)
- #define memmove(DEST, SRC, SIZE) _duma_memmove(DEST, SRC, SIZE)
- #define strcpy(DEST, SRC) _duma_strcpy(DEST, SRC, __FILE__, __LINE__)
- #define strncpy(DEST, SRC, SIZE) _duma_strncpy(DEST, SRC, SIZE, __FILE__, __LINE__)
- #define strcat(DEST, SRC) _duma_strcat(DEST, SRC, __FILE__, __LINE__)
- #define strncat(DEST, SRC, SIZE) _duma_strncat(DEST, SRC, SIZE, __FILE__, __LINE__)
- #else /* DUMA_NO_LEAKDETECTION */
- #define DUMA_newFrame() do { } while(0)
- #define DUMA_delFrame() do { } while(0)
- #endif /* DUMA_NO_LEAKDETECTION */
- #endif // DUMA_SKIP_SETUP
- #ifndef DUMA_ASSERT
- #define DUMA_ASSERT(EXPR) ( (EXPR) || ( _duma_assert(#EXPR, __FILE__, __LINE__), 0 ) )
- #endif
- #ifndef DUMA_CHECK
- #define DUMA_CHECK(BASEADR) duma_check(BASEADR)
- #endif
- #ifndef DUMA_CHECKALL
- #define DUMA_CHECKALL() duma_checkAll()
- #endif
- /*
- * protection of functions return address
- */
- #ifdef __GNUC__
- #define DUMA_FN_PROT_START const void * DUMA_RET_ADDR = __builtin_return_address(0); {
- #define DUMA_FN_PROT_END } DUMA_ASSERT( __builtin_return_address(0) == DUMA_RET_ADDR );
- #define DUMA_FN_PROT_RET(EXPR) do { DUMA_ASSERT( __builtin_return_address(0) == DUMA_RET_ADDR ); return( EXPR ); } while (0)
- #define DUMA_FN_PROT_RET_VOID() do { DUMA_ASSERT( __builtin_return_address(0) == DUMA_RET_ADDR ); return; } while (0)
- #else
- #define DUMA_FN_PROT_START int aiDUMA_PROT[ 4 ] = { 'E', 'F', 'P', 'R' }; {
- #define DUMA_FN_PROT_END } DUMA_ASSERT( 'E'==aiDUMA_PROT[0] && 'F'==aiDUMA_PROT[1] && 'P'==aiDUMA_PROT[2] && 'R'==aiDUMA_PROT[3] );
- #define DUMA_FN_PROT_RET(EXPR) do { DUMA_ASSERT( 'E'==aiDUMA_PROT[0] && 'F'==aiDUMA_PROT[1] && 'P'==aiDUMA_PROT[2] && 'R'==aiDUMA_PROT[3] ); return( EXPR ); } while (0)
- #define DUMA_FN_PROT_RET_VOID() do { DUMA_ASSERT( 'E'==aiDUMA_PROT[0] && 'F'==aiDUMA_PROT[1] && 'P'==aiDUMA_PROT[2] && 'R'==aiDUMA_PROT[3] ); return; } while (0)
- #endif
- /* declaration of an already defined array to enable checking at every reference
- * when using CA_REF()
- */
- #define CA_DECLARE(NAME,SIZE) \
- const unsigned long NAME ## _checkedsize = (SIZE); \
- unsigned long NAME ## _checkedidx
- /* definition of a checked array adds definitions for its size and an extra temporary.
- * every array gets its own temporary to avoid problems with threading
- * a global temporary would have.
- */
- #define CA_DEFINE(TYPE,NAME,SIZE) TYPE NAME[SIZE]; CA_DECLARE(NAME,SIZE)
- /* every access to a checked array is preceded an assert() on the index;
- * the index parameter is stored to a temporary to avoid double execution of index,
- * when index contains f.e. a "++".
- */
- #define CA_REF(NAME,INDEX) \
- NAME[ DUMA_ASSERT( (NAME ## _checkedidx = (INDEX)) < NAME ## _checkedsize ), NAME ## _checkedidx ]
- #endif /* end ifdef DUMA_NO_DUMA */
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