1 /* Heap management routines (including unexec) for GNU Emacs on Windows NT.
2 Copyright (C) 1994, 2001-2017 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 (at
9 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 extern unsigned char *get_data_start (void);
32 extern unsigned char *get_data_end (void);
33 extern size_t reserved_heap_size
;
34 extern BOOL using_dynamic_heap
;
36 extern void *mmap_realloc (void **, size_t);
37 extern void mmap_free (void **);
38 extern void *mmap_alloc (void **, size_t);
40 extern void report_temacs_memory_usage (void);
42 /* Emulation of Unix sbrk(). */
43 extern void *sbrk (ptrdiff_t size
);
45 /* Initialize heap structures for sbrk on startup. */
46 extern void init_heap (void);
48 /* ----------------------------------------------------------------- */
49 /* Useful routines for manipulating memory-mapped files. */
51 typedef struct file_data
{
56 unsigned char *file_base
;
59 int open_input_file (file_data
*p_file
, char *name
);
60 int open_output_file (file_data
*p_file
, char *name
, unsigned long size
);
61 void close_file_data (file_data
*p_file
);
63 /* Return pointer to section header for named section. */
64 IMAGE_SECTION_HEADER
* find_section (char * name
, IMAGE_NT_HEADERS
* nt_header
);
66 /* Return pointer to section header for section containing the given
67 relative virtual address. */
68 IMAGE_SECTION_HEADER
* rva_to_section (DWORD_PTR rva
, IMAGE_NT_HEADERS
* nt_header
);
70 #endif /* NTHEAP_H_ */