| 1 | /*
|
|---|
| 2 | * Copyright (c) 2007 Michal Kebrt
|
|---|
| 3 | * Copyright (c) 2007 Petr Stepan
|
|---|
| 4 | * All rights reserved.
|
|---|
| 5 | *
|
|---|
| 6 | * Redistribution and use in source and binary forms, with or without
|
|---|
| 7 | * modification, are permitted provided that the following conditions
|
|---|
| 8 | * are met:
|
|---|
| 9 | *
|
|---|
| 10 | * - Redistributions of source code must retain the above copyright
|
|---|
| 11 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 12 | * - Redistributions in binary form must reproduce the above copyright
|
|---|
| 13 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 14 | * documentation and/or other materials provided with the distribution.
|
|---|
| 15 | * - The name of the author may not be used to endorse or promote products
|
|---|
| 16 | * derived from this software without specific prior written permission.
|
|---|
| 17 | *
|
|---|
| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|---|
| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|---|
| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|---|
| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|---|
| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|---|
| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|---|
| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|---|
| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|---|
| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|---|
| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|---|
| 28 | */
|
|---|
| 29 |
|
|---|
| 30 | /** @addtogroup arm32interrupt
|
|---|
| 31 | * @{
|
|---|
| 32 | */
|
|---|
| 33 |
|
|---|
| 34 | #ifndef KERN_arm32_ISTATE_H_
|
|---|
| 35 | #define KERN_arm32_ISTATE_H_
|
|---|
| 36 |
|
|---|
| 37 | #include <trace.h>
|
|---|
| 38 |
|
|---|
| 39 | #ifdef KERNEL
|
|---|
| 40 |
|
|---|
| 41 | #include <arch/istate_struct.h>
|
|---|
| 42 | #include <arch/regutils.h>
|
|---|
| 43 |
|
|---|
| 44 | #else /* KERNEL */
|
|---|
| 45 |
|
|---|
| 46 | #include <libarch/istate_struct.h>
|
|---|
| 47 | #include <libarch/regutils.h>
|
|---|
| 48 |
|
|---|
| 49 | #endif /* KERNEL */
|
|---|
| 50 |
|
|---|
| 51 | /** Set Program Counter member of given istate structure.
|
|---|
| 52 | *
|
|---|
| 53 | * @param istate istate structure
|
|---|
| 54 | * @param retaddr new value of istate's PC member
|
|---|
| 55 | *
|
|---|
| 56 | */
|
|---|
| 57 | NO_TRACE static inline void istate_set_retaddr(istate_t *istate,
|
|---|
| 58 | uintptr_t retaddr)
|
|---|
| 59 | {
|
|---|
| 60 | istate->pc = retaddr;
|
|---|
| 61 | }
|
|---|
| 62 |
|
|---|
| 63 | /** Return true if exception happened while in userspace. */
|
|---|
| 64 | NO_TRACE static inline int istate_from_uspace(istate_t *istate)
|
|---|
| 65 | {
|
|---|
| 66 | return (istate->spsr & STATUS_REG_MODE_MASK) == USER_MODE;
|
|---|
| 67 | }
|
|---|
| 68 |
|
|---|
| 69 | /** Return Program Counter member of given istate structure. */
|
|---|
| 70 | NO_TRACE static inline uintptr_t istate_get_pc(istate_t *istate)
|
|---|
| 71 | {
|
|---|
| 72 | return istate->pc;
|
|---|
| 73 | }
|
|---|
| 74 |
|
|---|
| 75 | NO_TRACE static inline uintptr_t istate_get_fp(istate_t *istate)
|
|---|
| 76 | {
|
|---|
| 77 | return istate->fp;
|
|---|
| 78 | }
|
|---|
| 79 |
|
|---|
| 80 | #endif
|
|---|
| 81 |
|
|---|
| 82 | /** @}
|
|---|
| 83 | */
|
|---|
