1 /* Heap management routines (including unexec) for GNU Emacs on Windows NT.
2 Copyright (C) 1994, 2001-2014 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
6 GNU Emacs is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
19 Geoff Voelker (voelker@cs.washington.edu) 7-29-94
31 #define DUMPED_HEAP_SIZE (HEAPSIZE*1024*1024)
33 extern unsigned char dumped_data
[];
35 extern unsigned char *get_data_start (void);
36 extern unsigned char *get_data_end (void);
37 extern size_t reserved_heap_size
;
38 extern BOOL using_dynamic_heap
;
40 extern void *mmap_realloc (void **, size_t);
41 extern void mmap_free (void **);
42 extern void *mmap_alloc (void **, size_t);
44 extern void report_temacs_memory_usage (void);
46 /* Emulation of Unix sbrk(). */
47 extern void *sbrk (ptrdiff_t size
);
49 /* Initialize heap structures for sbrk on startup. */
50 extern void init_heap (void);
52 /* ----------------------------------------------------------------- */
53 /* Useful routines for manipulating memory-mapped files. */
55 typedef struct file_data
{
60 unsigned char *file_base
;
63 int open_input_file (file_data
*p_file
, char *name
);
64 int open_output_file (file_data
*p_file
, char *name
, unsigned long size
);
65 void close_file_data (file_data
*p_file
);
67 /* Return pointer to section header for named section. */
68 IMAGE_SECTION_HEADER
* find_section (char * name
, IMAGE_NT_HEADERS
* nt_header
);
70 /* Return pointer to section header for section containing the given
71 relative virtual address. */
72 IMAGE_SECTION_HEADER
* rva_to_section (DWORD_PTR rva
, IMAGE_NT_HEADERS
* nt_header
);
74 #endif /* NTHEAP_H_ */