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1 | /* |
1 | /* |
2 | * Copyright (c) 2001-2004 Jakub Jermar |
2 | * Copyright (c) 2001-2004 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup genericmm |
29 | /** @addtogroup genericmm |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #ifndef KERN_AS_H_ |
35 | #ifndef KERN_AS_H_ |
36 | #define KERN_AS_H_ |
36 | #define KERN_AS_H_ |
37 | 37 | ||
38 | /** Address space area flags. */ |
38 | /** Address space area flags. */ |
39 | #define AS_AREA_READ 1 |
39 | #define AS_AREA_READ 1 |
40 | #define AS_AREA_WRITE 2 |
40 | #define AS_AREA_WRITE 2 |
41 | #define AS_AREA_EXEC 4 |
41 | #define AS_AREA_EXEC 4 |
42 | #define AS_AREA_CACHEABLE 8 |
42 | #define AS_AREA_CACHEABLE 8 |
43 | 43 | ||
44 | #ifdef KERNEL |
44 | #ifdef KERNEL |
45 | 45 | ||
46 | #include <arch/mm/page.h> |
46 | #include <arch/mm/page.h> |
47 | #include <arch/mm/as.h> |
47 | #include <arch/mm/as.h> |
48 | #include <arch/mm/asid.h> |
48 | #include <arch/mm/asid.h> |
49 | #include <arch/types.h> |
49 | #include <arch/types.h> |
50 | #include <synch/spinlock.h> |
50 | #include <synch/spinlock.h> |
51 | #include <synch/mutex.h> |
51 | #include <synch/mutex.h> |
52 | #include <adt/list.h> |
52 | #include <adt/list.h> |
53 | #include <adt/btree.h> |
53 | #include <adt/btree.h> |
54 | #include <lib/elf.h> |
54 | #include <lib/elf.h> |
55 | 55 | ||
56 | #ifdef __OBJC__ |
56 | #ifdef __OBJC__ |
57 | #include <lib/objc.h> |
57 | #include <lib/objc.h> |
58 | #endif |
58 | #endif |
59 | 59 | ||
60 | /** |
60 | /** |
61 | * Defined to be true if user address space and kernel address space shadow each |
61 | * Defined to be true if user address space and kernel address space shadow each |
62 | * other. |
62 | * other. |
63 | */ |
63 | */ |
64 | #define KERNEL_ADDRESS_SPACE_SHADOWED KERNEL_ADDRESS_SPACE_SHADOWED_ARCH |
64 | #define KERNEL_ADDRESS_SPACE_SHADOWED KERNEL_ADDRESS_SPACE_SHADOWED_ARCH |
65 | 65 | ||
66 | #define KERNEL_ADDRESS_SPACE_START KERNEL_ADDRESS_SPACE_START_ARCH |
66 | #define KERNEL_ADDRESS_SPACE_START KERNEL_ADDRESS_SPACE_START_ARCH |
67 | #define KERNEL_ADDRESS_SPACE_END KERNEL_ADDRESS_SPACE_END_ARCH |
67 | #define KERNEL_ADDRESS_SPACE_END KERNEL_ADDRESS_SPACE_END_ARCH |
68 | #define USER_ADDRESS_SPACE_START USER_ADDRESS_SPACE_START_ARCH |
68 | #define USER_ADDRESS_SPACE_START USER_ADDRESS_SPACE_START_ARCH |
69 | #define USER_ADDRESS_SPACE_END USER_ADDRESS_SPACE_END_ARCH |
69 | #define USER_ADDRESS_SPACE_END USER_ADDRESS_SPACE_END_ARCH |
70 | 70 | ||
71 | #define USTACK_ADDRESS USTACK_ADDRESS_ARCH |
71 | #define USTACK_ADDRESS USTACK_ADDRESS_ARCH |
72 | 72 | ||
73 | /** Kernel address space. */ |
73 | /** Kernel address space. */ |
74 | #define FLAG_AS_KERNEL (1 << 0) |
74 | #define FLAG_AS_KERNEL (1 << 0) |
75 | 75 | ||
76 | /* Address space area attributes. */ |
76 | /* Address space area attributes. */ |
77 | #define AS_AREA_ATTR_NONE 0 |
77 | #define AS_AREA_ATTR_NONE 0 |
78 | #define AS_AREA_ATTR_PARTIAL 1 /**< Not fully initialized area. */ |
78 | #define AS_AREA_ATTR_PARTIAL 1 /**< Not fully initialized area. */ |
79 | 79 | ||
80 | /** The page fault was not resolved by as_page_fault(). */ |
80 | /** The page fault was not resolved by as_page_fault(). */ |
81 | #define AS_PF_FAULT 0 |
81 | #define AS_PF_FAULT 0 |
82 | /** The page fault was resolved by as_page_fault(). */ |
82 | /** The page fault was resolved by as_page_fault(). */ |
83 | #define AS_PF_OK 1 |
83 | #define AS_PF_OK 1 |
84 | /** The page fault was caused by memcpy_from_uspace() or memcpy_to_uspace(). */ |
84 | /** The page fault was caused by memcpy_from_uspace() or memcpy_to_uspace(). */ |
85 | #define AS_PF_DEFER 2 |
85 | #define AS_PF_DEFER 2 |
86 | 86 | ||
87 | #ifdef __OBJC__ |
87 | #ifdef __OBJC__ |
88 | @interface as_t : base_t { |
88 | @interface as_t : base_t { |
89 | @public |
89 | @public |
90 | /** Protected by asidlock. */ |
90 | /** Protected by asidlock. */ |
91 | link_t inactive_as_with_asid_link; |
91 | link_t inactive_as_with_asid_link; |
92 | 92 | ||
93 | mutex_t lock; |
93 | mutex_t lock; |
94 | 94 | ||
95 | /** Number of references (i.e tasks that reference this as). */ |
95 | /** Number of references (i.e tasks that reference this as). */ |
96 | count_t refcount; |
96 | count_t refcount; |
97 | 97 | ||
98 | /** Number of processors on wich is this address space active. */ |
98 | /** Number of processors on wich is this address space active. */ |
99 | count_t cpu_refcount; |
99 | count_t cpu_refcount; |
100 | 100 | ||
101 | /** B+tree of address space areas. */ |
101 | /** B+tree of address space areas. */ |
102 | btree_t as_area_btree; |
102 | btree_t as_area_btree; |
103 | 103 | ||
104 | /** |
104 | /** |
105 | * Address space identifier. |
105 | * Address space identifier. |
106 | * Constant on architectures that do not support ASIDs. |
106 | * Constant on architectures that do not support ASIDs. |
107 | */ |
107 | */ |
108 | asid_t asid; |
108 | asid_t asid; |
109 | 109 | ||
110 | /** Non-generic content. */ |
110 | /** Non-generic content. */ |
111 | as_genarch_t genarch; |
111 | as_genarch_t genarch; |
112 | 112 | ||
113 | /** Architecture specific content. */ |
113 | /** Architecture specific content. */ |
114 | as_arch_t arch; |
114 | as_arch_t arch; |
115 | } |
115 | } |
116 | 116 | ||
117 | + (pte_t *) page_table_create: (int) flags; |
117 | + (pte_t *) page_table_create: (int) flags; |
118 | + (void) page_table_destroy: (pte_t *) page_table; |
118 | + (void) page_table_destroy: (pte_t *) page_table; |
119 | - (void) page_table_lock: (bool) _lock; |
119 | - (void) page_table_lock: (bool) _lock; |
120 | - (void) page_table_unlock: (bool) unlock; |
120 | - (void) page_table_unlock: (bool) unlock; |
121 | 121 | ||
122 | @end |
122 | @end |
123 | 123 | ||
124 | #else |
124 | #else |
125 | 125 | ||
126 | /** Address space structure. |
126 | /** Address space structure. |
127 | * |
127 | * |
128 | * as_t contains the list of as_areas of userspace accessible |
128 | * as_t contains the list of as_areas of userspace accessible |
129 | * pages for one or more tasks. Ranges of kernel memory pages are not |
129 | * pages for one or more tasks. Ranges of kernel memory pages are not |
130 | * supposed to figure in the list as they are shared by all tasks and |
130 | * supposed to figure in the list as they are shared by all tasks and |
131 | * set up during system initialization. |
131 | * set up during system initialization. |
132 | */ |
132 | */ |
133 | typedef struct as { |
133 | typedef struct as { |
134 | /** Protected by asidlock. */ |
134 | /** Protected by asidlock. */ |
135 | link_t inactive_as_with_asid_link; |
135 | link_t inactive_as_with_asid_link; |
136 | 136 | ||
137 | mutex_t lock; |
137 | mutex_t lock; |
138 | 138 | ||
139 | /** Number of references (i.e tasks that reference this as). */ |
139 | /** Number of references (i.e tasks that reference this as). */ |
140 | count_t refcount; |
140 | count_t refcount; |
141 | 141 | ||
142 | /** Number of processors on wich is this address space active. */ |
142 | /** Number of processors on wich is this address space active. */ |
143 | count_t cpu_refcount; |
143 | count_t cpu_refcount; |
144 | 144 | ||
145 | /** B+tree of address space areas. */ |
145 | /** B+tree of address space areas. */ |
146 | btree_t as_area_btree; |
146 | btree_t as_area_btree; |
147 | 147 | ||
148 | /** |
148 | /** |
149 | * Address space identifier. |
149 | * Address space identifier. |
150 | * Constant on architectures that do not support ASIDs. |
150 | * Constant on architectures that do not support ASIDs. |
151 | */ |
151 | */ |
152 | asid_t asid; |
152 | asid_t asid; |
153 | 153 | ||
154 | /** Non-generic content. */ |
154 | /** Non-generic content. */ |
155 | as_genarch_t genarch; |
155 | as_genarch_t genarch; |
156 | 156 | ||
157 | /** Architecture specific content. */ |
157 | /** Architecture specific content. */ |
158 | as_arch_t arch; |
158 | as_arch_t arch; |
159 | } as_t; |
159 | } as_t; |
160 | 160 | ||
161 | typedef struct { |
161 | typedef struct { |
162 | pte_t *(* page_table_create)(int flags); |
162 | pte_t *(* page_table_create)(int flags); |
163 | void (* page_table_destroy)(pte_t *page_table); |
163 | void (* page_table_destroy)(pte_t *page_table); |
164 | void (* page_table_lock)(as_t *as, bool lock); |
164 | void (* page_table_lock)(as_t *as, bool lock); |
165 | void (* page_table_unlock)(as_t *as, bool unlock); |
165 | void (* page_table_unlock)(as_t *as, bool unlock); |
166 | } as_operations_t; |
166 | } as_operations_t; |
167 | #endif |
167 | #endif |
168 | 168 | ||
169 | /** |
169 | /** |
170 | * This structure contains information associated with the shared address space |
170 | * This structure contains information associated with the shared address space |
171 | * area. |
171 | * area. |
172 | */ |
172 | */ |
173 | typedef struct { |
173 | typedef struct { |
174 | /** This lock must be acquired only when the as_area lock is held. */ |
174 | /** This lock must be acquired only when the as_area lock is held. */ |
175 | mutex_t lock; |
175 | mutex_t lock; |
176 | /** This structure can be deallocated if refcount drops to 0. */ |
176 | /** This structure can be deallocated if refcount drops to 0. */ |
177 | count_t refcount; |
177 | count_t refcount; |
178 | /** |
178 | /** |
179 | * B+tree containing complete map of anonymous pages of the shared area. |
179 | * B+tree containing complete map of anonymous pages of the shared area. |
180 | */ |
180 | */ |
181 | btree_t pagemap; |
181 | btree_t pagemap; |
182 | } share_info_t; |
182 | } share_info_t; |
183 | 183 | ||
184 | /** Page fault access type. */ |
184 | /** Page fault access type. */ |
185 | typedef enum { |
185 | typedef enum { |
186 | PF_ACCESS_READ, |
186 | PF_ACCESS_READ, |
187 | PF_ACCESS_WRITE, |
187 | PF_ACCESS_WRITE, |
188 | PF_ACCESS_EXEC |
188 | PF_ACCESS_EXEC |
189 | } pf_access_t; |
189 | } pf_access_t; |
190 | 190 | ||
191 | struct mem_backend; |
191 | struct mem_backend; |
192 | 192 | ||
193 | /** Backend data stored in address space area. */ |
193 | /** Backend data stored in address space area. */ |
194 | typedef union mem_backend_data { |
194 | typedef union mem_backend_data { |
195 | struct { /**< elf_backend members */ |
195 | struct { /**< elf_backend members */ |
196 | elf_header_t *elf; |
196 | elf_header_t *elf; |
197 | elf_segment_header_t *segment; |
197 | elf_segment_header_t *segment; |
198 | }; |
198 | }; |
199 | struct { /**< phys_backend members */ |
199 | struct { /**< phys_backend members */ |
200 | uintptr_t base; |
200 | uintptr_t base; |
201 | count_t frames; |
201 | count_t frames; |
202 | }; |
202 | }; |
203 | } mem_backend_data_t; |
203 | } mem_backend_data_t; |
204 | 204 | ||
205 | /** Address space area structure. |
205 | /** Address space area structure. |
206 | * |
206 | * |
207 | * Each as_area_t structure describes one contiguous area of virtual memory. |
207 | * Each as_area_t structure describes one contiguous area of virtual memory. |
208 | * In the future, it should not be difficult to support shared areas. |
- | |
209 | */ |
208 | */ |
210 | typedef struct { |
209 | typedef struct { |
211 | mutex_t lock; |
210 | mutex_t lock; |
212 | /** Containing address space. */ |
211 | /** Containing address space. */ |
213 | as_t *as; |
212 | as_t *as; |
214 | /** |
213 | /** |
215 | * Flags related to the memory represented by the address space area. |
214 | * Flags related to the memory represented by the address space area. |
216 | */ |
215 | */ |
217 | int flags; |
216 | int flags; |
218 | /** Attributes related to the address space area itself. */ |
217 | /** Attributes related to the address space area itself. */ |
219 | int attributes; |
218 | int attributes; |
220 | /** Size of this area in multiples of PAGE_SIZE. */ |
219 | /** Size of this area in multiples of PAGE_SIZE. */ |
221 | count_t pages; |
220 | count_t pages; |
222 | /** Base address of this area. */ |
221 | /** Base address of this area. */ |
223 | uintptr_t base; |
222 | uintptr_t base; |
224 | /** Map of used space. */ |
223 | /** Map of used space. */ |
225 | btree_t used_space; |
224 | btree_t used_space; |
226 | 225 | ||
227 | /** |
226 | /** |
228 | * If the address space area has been shared, this pointer will |
227 | * If the address space area has been shared, this pointer will |
229 | * reference the share info structure. |
228 | * reference the share info structure. |
230 | */ |
229 | */ |
231 | share_info_t *sh_info; |
230 | share_info_t *sh_info; |
232 | 231 | ||
233 | /** Memory backend backing this address space area. */ |
232 | /** Memory backend backing this address space area. */ |
234 | struct mem_backend *backend; |
233 | struct mem_backend *backend; |
235 | 234 | ||
236 | /** Data to be used by the backend. */ |
235 | /** Data to be used by the backend. */ |
237 | mem_backend_data_t backend_data; |
236 | mem_backend_data_t backend_data; |
238 | } as_area_t; |
237 | } as_area_t; |
239 | 238 | ||
240 | /** Address space area backend structure. */ |
239 | /** Address space area backend structure. */ |
241 | typedef struct mem_backend { |
240 | typedef struct mem_backend { |
242 | int (* page_fault)(as_area_t *area, uintptr_t addr, pf_access_t access); |
241 | int (* page_fault)(as_area_t *area, uintptr_t addr, pf_access_t access); |
243 | void (* frame_free)(as_area_t *area, uintptr_t page, uintptr_t frame); |
242 | void (* frame_free)(as_area_t *area, uintptr_t page, uintptr_t frame); |
244 | void (* share)(as_area_t *area); |
243 | void (* share)(as_area_t *area); |
245 | } mem_backend_t; |
244 | } mem_backend_t; |
246 | 245 | ||
247 | extern as_t *AS_KERNEL; |
246 | extern as_t *AS_KERNEL; |
248 | 247 | ||
249 | #ifndef __OBJC__ |
248 | #ifndef __OBJC__ |
250 | extern as_operations_t *as_operations; |
249 | extern as_operations_t *as_operations; |
251 | #endif |
250 | #endif |
252 | 251 | ||
253 | SPINLOCK_EXTERN(inactive_as_with_asid_lock); |
252 | SPINLOCK_EXTERN(inactive_as_with_asid_lock); |
254 | extern link_t inactive_as_with_asid_head; |
253 | extern link_t inactive_as_with_asid_head; |
255 | 254 | ||
256 | extern void as_init(void); |
255 | extern void as_init(void); |
257 | 256 | ||
258 | extern as_t *as_create(int flags); |
257 | extern as_t *as_create(int flags); |
259 | extern void as_destroy(as_t *as); |
258 | extern void as_destroy(as_t *as); |
260 | extern void as_switch(as_t *old_as, as_t *new_as); |
259 | extern void as_switch(as_t *old_as, as_t *new_as); |
261 | extern int as_page_fault(uintptr_t page, pf_access_t access, istate_t *istate); |
260 | extern int as_page_fault(uintptr_t page, pf_access_t access, istate_t *istate); |
262 | 261 | ||
263 | extern as_area_t *as_area_create(as_t *as, int flags, size_t size, |
262 | extern as_area_t *as_area_create(as_t *as, int flags, size_t size, |
264 | uintptr_t base, int attrs, mem_backend_t *backend, |
263 | uintptr_t base, int attrs, mem_backend_t *backend, |
265 | mem_backend_data_t *backend_data); |
264 | mem_backend_data_t *backend_data); |
266 | extern int as_area_destroy(as_t *as, uintptr_t address); |
265 | extern int as_area_destroy(as_t *as, uintptr_t address); |
267 | extern int as_area_resize(as_t *as, uintptr_t address, size_t size, int flags); |
266 | extern int as_area_resize(as_t *as, uintptr_t address, size_t size, int flags); |
268 | int as_area_share(as_t *src_as, uintptr_t src_base, size_t acc_size, |
267 | int as_area_share(as_t *src_as, uintptr_t src_base, size_t acc_size, |
269 | as_t *dst_as, uintptr_t dst_base, int dst_flags_mask); |
268 | as_t *dst_as, uintptr_t dst_base, int dst_flags_mask); |
270 | 269 | ||
271 | extern int as_area_get_flags(as_area_t *area); |
270 | extern int as_area_get_flags(as_area_t *area); |
272 | extern bool as_area_check_access(as_area_t *area, pf_access_t access); |
271 | extern bool as_area_check_access(as_area_t *area, pf_access_t access); |
273 | extern size_t as_get_size(uintptr_t base); |
272 | extern size_t as_get_size(uintptr_t base); |
274 | extern int used_space_insert(as_area_t *a, uintptr_t page, count_t count); |
273 | extern int used_space_insert(as_area_t *a, uintptr_t page, count_t count); |
275 | extern int used_space_remove(as_area_t *a, uintptr_t page, count_t count); |
274 | extern int used_space_remove(as_area_t *a, uintptr_t page, count_t count); |
276 | 275 | ||
277 | 276 | ||
278 | /* Interface to be implemented by architectures. */ |
277 | /* Interface to be implemented by architectures. */ |
279 | #ifndef as_constructor_arch |
278 | #ifndef as_constructor_arch |
280 | extern int as_constructor_arch(as_t *as, int flags); |
279 | extern int as_constructor_arch(as_t *as, int flags); |
281 | #endif /* !def as_constructor_arch */ |
280 | #endif /* !def as_constructor_arch */ |
282 | #ifndef as_destructor_arch |
281 | #ifndef as_destructor_arch |
283 | extern int as_destructor_arch(as_t *as); |
282 | extern int as_destructor_arch(as_t *as); |
284 | #endif /* !def as_destructor_arch */ |
283 | #endif /* !def as_destructor_arch */ |
285 | #ifndef as_create_arch |
284 | #ifndef as_create_arch |
286 | extern int as_create_arch(as_t *as, int flags); |
285 | extern int as_create_arch(as_t *as, int flags); |
287 | #endif /* !def as_create_arch */ |
286 | #endif /* !def as_create_arch */ |
288 | #ifndef as_install_arch |
287 | #ifndef as_install_arch |
289 | extern void as_install_arch(as_t *as); |
288 | extern void as_install_arch(as_t *as); |
290 | #endif /* !def as_install_arch */ |
289 | #endif /* !def as_install_arch */ |
291 | #ifndef as_deinstall_arch |
290 | #ifndef as_deinstall_arch |
292 | extern void as_deinstall_arch(as_t *as); |
291 | extern void as_deinstall_arch(as_t *as); |
293 | #endif /* !def as_deinstall_arch */ |
292 | #endif /* !def as_deinstall_arch */ |
294 | 293 | ||
295 | /* Backend declarations and functions. */ |
294 | /* Backend declarations and functions. */ |
296 | extern mem_backend_t anon_backend; |
295 | extern mem_backend_t anon_backend; |
297 | extern mem_backend_t elf_backend; |
296 | extern mem_backend_t elf_backend; |
298 | extern mem_backend_t phys_backend; |
297 | extern mem_backend_t phys_backend; |
299 | 298 | ||
300 | extern int elf_load(elf_header_t *header, as_t *as); |
299 | extern int elf_load(elf_header_t *header, as_t *as); |
301 | 300 | ||
302 | /* Address space area related syscalls. */ |
301 | /* Address space area related syscalls. */ |
303 | extern unative_t sys_as_area_create(uintptr_t address, size_t size, int flags); |
302 | extern unative_t sys_as_area_create(uintptr_t address, size_t size, int flags); |
304 | extern unative_t sys_as_area_resize(uintptr_t address, size_t size, int flags); |
303 | extern unative_t sys_as_area_resize(uintptr_t address, size_t size, int flags); |
305 | extern unative_t sys_as_area_destroy(uintptr_t address); |
304 | extern unative_t sys_as_area_destroy(uintptr_t address); |
306 | 305 | ||
307 | /* Introspection functions. */ |
306 | /* Introspection functions. */ |
308 | extern void as_print(as_t *as); |
307 | extern void as_print(as_t *as); |
309 | 308 | ||
310 | #endif /* KERNEL */ |
309 | #endif /* KERNEL */ |
311 | 310 | ||
312 | #endif |
311 | #endif |
313 | 312 | ||
314 | /** @} |
313 | /** @} |
315 | */ |
314 | */ |
316 | 315 |