| /branches/dynload/kernel/generic/include/synch/smc.h |
|---|
| 0,0 → 1,43 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup sync |
| * @{ |
| */ |
| /** @file |
| */ |
| #ifndef KERN_SMC_H_ |
| #define KERN_SMC_H_ |
| extern unative_t sys_smc_coherence(uintptr_t va, size_t size); |
| #endif |
| /** @} |
| */ |
| /branches/dynload/kernel/generic/include/syscall/syscall.h |
|---|
| 48,6 → 48,7 |
| SYS_FUTEX_SLEEP, |
| SYS_FUTEX_WAKEUP, |
| SYS_SMC_COHERENCE, |
| SYS_AS_AREA_CREATE, |
| SYS_AS_AREA_RESIZE, |
| /branches/dynload/kernel/generic/src/synch/smc.c |
|---|
| 0,0 → 1,59 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup sync |
| * @{ |
| */ |
| /** |
| * @file |
| * @brief Self-modifying code barriers. |
| */ |
| #include <arch.h> |
| #include <macros.h> |
| #include <errno.h> |
| #include <synch/smc.h> |
| unative_t sys_smc_coherence(uintptr_t va, size_t size) |
| { |
| if (overlaps(va, size, NULL, PAGE_SIZE)) |
| return EINVAL; |
| if (!KERNEL_ADDRESS_SPACE_SHADOWED) { |
| if (overlaps(va, size, KERNEL_ADDRESS_SPACE_START, |
| KERNEL_ADDRESS_SPACE_END - KERNEL_ADDRESS_SPACE_START)) |
| return EINVAL; |
| } |
| smc_coherence_block(va, size); |
| return 0; |
| } |
| /** @} |
| */ |
| /branches/dynload/kernel/generic/src/syscall/syscall.c |
|---|
| 47,6 → 47,7 |
| #include <debug.h> |
| #include <ipc/sysipc.h> |
| #include <synch/futex.h> |
| #include <synch/smc.h> |
| #include <ddi/ddi.h> |
| #include <security/cap.h> |
| #include <syscall/copy.h> |
| 136,6 → 137,7 |
| /* Synchronization related syscalls. */ |
| (syshandler_t) sys_futex_sleep_timeout, |
| (syshandler_t) sys_futex_wakeup, |
| (syshandler_t) sys_smc_coherence, |
| /* Address space related syscalls. */ |
| (syshandler_t) sys_as_area_create, |
| /branches/dynload/kernel/Makefile |
|---|
| 271,6 → 271,7 |
| generic/src/synch/rwlock.c \ |
| generic/src/synch/mutex.c \ |
| generic/src/synch/semaphore.c \ |
| generic/src/synch/smc.c \ |
| generic/src/synch/waitq.c \ |
| generic/src/synch/futex.c \ |
| generic/src/smp/ipi.c \ |
| /branches/dynload/uspace/lib/libc/include/smc.h |
|---|
| 0,0 → 1,45 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup libc |
| * @{ |
| */ |
| /** @file |
| */ |
| #ifndef LIBC_SMC_H_ |
| #define LIBC_SMC_H_ |
| #include <sys/types.h> |
| extern int smc_coherence(void *address, size_t size); |
| #endif |
| /** @} |
| */ |
| /branches/dynload/uspace/lib/libc/generic/smc.c |
|---|
| 0,0 → 1,45 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup libc |
| * @{ |
| */ |
| /** @file |
| */ |
| #include <libc.h> |
| #include <sys/types.h> |
| int smc_coherence(void *address, size_t size) |
| { |
| return __SYSCALL2(SYS_SMC_COHERENCE, (sysarg_t) address, |
| (sysarg_t) size); |
| } |
| /** @} |
| */ |
| /branches/dynload/uspace/lib/libc/Makefile |
|---|
| 54,6 → 54,7 |
| generic/string.c \ |
| generic/fibril.c \ |
| generic/pcb.c \ |
| generic/smc.h \ |
| generic/thread.c \ |
| generic/tls.c \ |
| generic/task.c \ |
| /branches/dynload/uspace/srv/loader/elf_load.c |
|---|
| 50,6 → 50,7 |
| #include <as.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <smc.h> |
| #include <loader/pcb.h> |
| #include "elf.h" |
| 403,6 → 404,12 |
| return EE_MEMORY; |
| } |
| if (flags & AS_AREA_EXEC) { |
| /* Enforce SMC coherence for the segment */ |
| if (smc_coherence(entry->p_vaddr + bias, entry->p_filesz)) |
| return EE_MEMORY; |
| } |
| return EE_OK; |
| } |