Commit | Line | Data |
---|---|---|
95ed0025 | 1 | /* Heap management routines (including unexec) for GNU Emacs on Windows NT. |
acaf905b | 2 | Copyright (C) 1994, 2001-2012 Free Software Foundation, Inc. |
95ed0025 | 3 | |
3b7ad313 EN |
4 | This file is part of GNU Emacs. |
5 | ||
b9b1cc14 | 6 | GNU Emacs is free software: you can redistribute it and/or modify |
3b7ad313 | 7 | it under the terms of the GNU General Public License as published by |
b9b1cc14 GM |
8 | the Free Software Foundation, either version 3 of the License, or |
9 | (at your option) any later version. | |
3b7ad313 EN |
10 | |
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. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
ebff94f0 | 17 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
95ed0025 RS |
18 | |
19 | Geoff Voelker (voelker@cs.washington.edu) 7-29-94 | |
20 | */ | |
21 | ||
22 | #ifndef NTHEAP_H_ | |
23 | #define NTHEAP_H_ | |
24 | ||
25 | #include <windows.h> | |
26 | ||
a5352d98 AI |
27 | #define ROUND_UP(p, align) (((DWORD)(p) + (align)-1) & ~((align)-1)) |
28 | #define ROUND_DOWN(p, align) ((DWORD)(p) & ~((align)-1)) | |
29 | ||
95ed0025 RS |
30 | /* |
31 | * Heap related stuff. | |
32 | */ | |
f803a6b1 | 33 | #define get_reserved_heap_size() reserved_heap_size |
95ed0025 RS |
34 | #define get_committed_heap_size() (get_data_end () - get_data_start ()) |
35 | #define get_heap_start() get_data_start () | |
36 | #define get_heap_end() get_data_end () | |
37 | #define get_page_size() sysinfo_cache.dwPageSize | |
38 | #define get_allocation_unit() sysinfo_cache.dwAllocationGranularity | |
39 | #define get_processor_type() sysinfo_cache.dwProcessorType | |
fbd6baed GV |
40 | #define get_w32_major_version() w32_major_version |
41 | #define get_w32_minor_version() w32_minor_version | |
95ed0025 | 42 | |
361358ea JB |
43 | extern unsigned char *get_data_start (void); |
44 | extern unsigned char *get_data_end (void); | |
f803a6b1 | 45 | extern unsigned long reserved_heap_size; |
95ed0025 | 46 | extern SYSTEM_INFO sysinfo_cache; |
354350d5 | 47 | extern OSVERSIONINFO osinfo_cache; |
a5352d98 | 48 | extern BOOL using_dynamic_heap; |
fbd6baed GV |
49 | extern int w32_major_version; |
50 | extern int w32_minor_version; | |
0ae88b4d | 51 | extern int w32_build_number; |
95ed0025 | 52 | |
3443b04a GV |
53 | enum { |
54 | OS_WIN95 = 1, | |
55 | OS_NT | |
56 | }; | |
57 | ||
58 | extern int os_subtype; | |
59 | ||
95ed0025 RS |
60 | /* Emulation of Unix sbrk(). */ |
61 | extern void *sbrk (unsigned long size); | |
62 | ||
a5352d98 | 63 | /* Initialize heap structures for sbrk on startup. */ |
361358ea | 64 | extern void init_heap (void); |
95ed0025 RS |
65 | |
66 | /* Round the heap to this size. */ | |
67 | extern void round_heap (unsigned long size); | |
68 | ||
95ed0025 RS |
69 | /* Cache system info, e.g., the NT page size. */ |
70 | extern void cache_system_info (void); | |
71 | ||
3443b04a GV |
72 | /* ----------------------------------------------------------------- */ |
73 | /* Useful routines for manipulating memory-mapped files. */ | |
74 | ||
75 | typedef struct file_data { | |
76 | char *name; | |
77 | unsigned long size; | |
78 | HANDLE file; | |
79 | HANDLE file_mapping; | |
80 | unsigned char *file_base; | |
81 | } file_data; | |
82 | ||
3443b04a GV |
83 | int open_input_file (file_data *p_file, char *name); |
84 | int open_output_file (file_data *p_file, char *name, unsigned long size); | |
85 | void close_file_data (file_data *p_file); | |
86 | ||
3443b04a GV |
87 | /* Return pointer to section header for named section. */ |
88 | IMAGE_SECTION_HEADER * find_section (char * name, IMAGE_NT_HEADERS * nt_header); | |
89 | ||
90 | /* Return pointer to section header for section containing the given | |
91 | relative virtual address. */ | |
92 | IMAGE_SECTION_HEADER * rva_to_section (DWORD rva, IMAGE_NT_HEADERS * nt_header); | |
93 | ||
95ed0025 | 94 | #endif /* NTHEAP_H_ */ |
ab5796a9 | 95 |