mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-17 15:18:06 +01:00
210 lines
4.9 KiB
C
Executable File
210 lines
4.9 KiB
C
Executable File
/** @file
|
|
Header file for memory allocation tracking functions.
|
|
|
|
Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#ifndef _MYALLOC_H_
|
|
#define _MYALLOC_H_
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include <Common/BaseTypes.h>
|
|
|
|
//
|
|
// Default operation is to use the memory allocation tracking functions.
|
|
// To over-ride add "#define USE_MYALLOC 0" to your program header and/or
|
|
// source files as needed. Or, just do not include this header file in
|
|
// your project.
|
|
//
|
|
#ifndef USE_MYALLOC
|
|
#define USE_MYALLOC 1
|
|
#endif
|
|
|
|
#if USE_MYALLOC
|
|
//
|
|
// Replace C library allocation routines with MyAlloc routines.
|
|
//
|
|
#define malloc(size) MyAlloc ((size), __FILE__, __LINE__)
|
|
#define calloc(count, size) MyAlloc ((count) * (size), __FILE__, __LINE__)
|
|
#define realloc(ptr, size) MyRealloc ((ptr), (size), __FILE__, __LINE__)
|
|
#define free(ptr) MyFree ((ptr), __FILE__, __LINE__)
|
|
#define alloc_check(final) MyCheck ((final), __FILE__, __LINE__)
|
|
|
|
//
|
|
// Structure for checking/tracking memory allocations.
|
|
//
|
|
typedef struct MyAllocStruct {
|
|
UINTN Cksum;
|
|
struct MyAllocStruct *Next;
|
|
UINTN Line;
|
|
UINTN Size;
|
|
UINT8 *File;
|
|
UINT8 *Buffer;
|
|
} MY_ALLOC_STRUCT;
|
|
//
|
|
// Cksum := (UINTN)This + (UINTN)Next + Line + Size + (UINTN)File +
|
|
// (UINTN)Buffer;
|
|
//
|
|
// Next := Pointer to next allocation structure in the list.
|
|
//
|
|
// Line := __LINE__
|
|
//
|
|
// Size := Size of allocation request.
|
|
//
|
|
// File := Pointer to __FILE__ string stored immediately following
|
|
// MY_ALLOC_STRUCT in memory.
|
|
//
|
|
// Buffer := Pointer to UINT32 aligned storage immediately following
|
|
// the NULL terminated __FILE__ string. This is UINT32
|
|
// aligned because the underflow signature is 32-bits and
|
|
// this will place the first caller address on a 64-bit
|
|
// boundary.
|
|
//
|
|
//
|
|
// Signatures used to check for buffer overflow/underflow conditions.
|
|
//
|
|
#define MYALLOC_HEAD_MAGIK 0xBADFACED
|
|
#define MYALLOC_TAIL_MAGIK 0xDEADBEEF
|
|
|
|
VOID
|
|
MyCheck (
|
|
BOOLEAN Final,
|
|
UINT8 File[],
|
|
UINTN Line
|
|
)
|
|
;
|
|
//
|
|
// *++
|
|
// Description:
|
|
//
|
|
// Check for corruptions in the allocated memory chain. If a corruption
|
|
// is detection program operation stops w/ an exit(1) call.
|
|
//
|
|
// Parameters:
|
|
//
|
|
// Final := When FALSE, MyCheck() returns if the allocated memory chain
|
|
// has not been corrupted. When TRUE, MyCheck() returns if there
|
|
// are no un-freed allocations. If there are un-freed allocations,
|
|
// they are displayed and exit(1) is called.
|
|
//
|
|
//
|
|
// File := Set to __FILE__ by macro expansion.
|
|
//
|
|
// Line := Set to __LINE__ by macro expansion.
|
|
//
|
|
// Returns:
|
|
//
|
|
// n/a
|
|
//
|
|
// --*/
|
|
//
|
|
VOID *
|
|
MyAlloc (
|
|
UINTN Size,
|
|
UINT8 File[],
|
|
UINTN Line
|
|
)
|
|
;
|
|
//
|
|
// *++
|
|
// Description:
|
|
//
|
|
// Allocate a new link in the allocation chain along with enough storage
|
|
// for the File[] string, requested Size and alignment overhead. If
|
|
// memory cannot be allocated or the allocation chain has been corrupted,
|
|
// exit(1) will be called.
|
|
//
|
|
// Parameters:
|
|
//
|
|
// Size := Number of bytes (UINT8) requested by the called.
|
|
// Size cannot be zero.
|
|
//
|
|
// File := Set to __FILE__ by macro expansion.
|
|
//
|
|
// Line := Set to __LINE__ by macro expansion.
|
|
//
|
|
// Returns:
|
|
//
|
|
// Pointer to the caller's buffer.
|
|
//
|
|
// --*/
|
|
//
|
|
VOID *
|
|
MyRealloc (
|
|
VOID *Ptr,
|
|
UINTN Size,
|
|
UINT8 File[],
|
|
UINTN Line
|
|
)
|
|
;
|
|
//
|
|
// *++
|
|
// Description:
|
|
//
|
|
// This does a MyAlloc(), memcpy() and MyFree(). There is no optimization
|
|
// for shrinking or expanding buffers. An invalid parameter will cause
|
|
// MyRealloc() to fail with a call to exit(1).
|
|
//
|
|
// Parameters:
|
|
//
|
|
// Ptr := Pointer to the caller's buffer to be re-allocated.
|
|
// Ptr cannot be NULL.
|
|
//
|
|
// Size := Size of new buffer. Size cannot be zero.
|
|
//
|
|
// File := Set to __FILE__ by macro expansion.
|
|
//
|
|
// Line := Set to __LINE__ by macro expansion.
|
|
//
|
|
// Returns:
|
|
//
|
|
// Pointer to new caller's buffer.
|
|
//
|
|
// --*/
|
|
//
|
|
VOID
|
|
MyFree (
|
|
VOID *Ptr,
|
|
UINT8 File[],
|
|
UINTN Line
|
|
)
|
|
;
|
|
//
|
|
// *++
|
|
// Description:
|
|
//
|
|
// Release a previously allocated buffer. Invalid parameters will cause
|
|
// MyFree() to fail with an exit(1) call.
|
|
//
|
|
// Parameters:
|
|
//
|
|
// Ptr := Pointer to the caller's buffer to be freed.
|
|
// A NULL pointer will be ignored.
|
|
//
|
|
// File := Set to __FILE__ by macro expansion.
|
|
//
|
|
// Line := Set to __LINE__ by macro expansion.
|
|
//
|
|
// Returns:
|
|
//
|
|
// n/a
|
|
//
|
|
// --*/
|
|
//
|
|
#else /* USE_MYALLOC */
|
|
|
|
//
|
|
// Nothing to do when USE_MYALLOC is zero.
|
|
//
|
|
#define alloc_check(final)
|
|
|
|
#endif /* USE_MYALLOC */
|
|
#endif /* _MYALLOC_H_ */
|
|
|
|
/* eof - MyAlloc.h */
|