Changeset 598f90e in mainline for kernel/arch/arm32/include/exception.h
- Timestamp:
- 2010-10-31T20:13:16Z (14 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- 458619f7
- Parents:
- 5c088975
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
kernel/arch/arm32/include/exception.h
r5c088975 r598f90e 39 39 40 40 #include <typedefs.h> 41 #include <arch/regutils.h> 42 #include <trace.h> 41 #include <arch/istate.h> 43 42 44 43 /** If defined, forces using of high exception vectors. */ … … 85 84 extern uintptr_t exc_stack; 86 85 87 /** Struct representing CPU state saved when an exception occurs. */88 typedef struct istate {89 uint32_t spsr;90 uint32_t sp;91 uint32_t lr;92 93 uint32_t r0;94 uint32_t r1;95 uint32_t r2;96 uint32_t r3;97 uint32_t r4;98 uint32_t r5;99 uint32_t r6;100 uint32_t r7;101 uint32_t r8;102 uint32_t r9;103 uint32_t r10;104 uint32_t fp;105 uint32_t r12;106 107 uint32_t pc;108 } istate_t;109 110 /** Set Program Counter member of given istate structure.111 *112 * @param istate istate structure113 * @param retaddr new value of istate's PC member114 *115 */116 NO_TRACE static inline void istate_set_retaddr(istate_t *istate,117 uintptr_t retaddr)118 {119 istate->pc = retaddr;120 }121 122 /** Return true if exception happened while in userspace. */123 NO_TRACE static inline int istate_from_uspace(istate_t *istate)124 {125 return (istate->spsr & STATUS_REG_MODE_MASK) == USER_MODE;126 }127 128 /** Return Program Counter member of given istate structure. */129 NO_TRACE static inline unative_t istate_get_pc(istate_t *istate)130 {131 return istate->pc;132 }133 134 NO_TRACE static inline unative_t istate_get_fp(istate_t *istate)135 {136 return istate->fp;137 }138 139 86 extern void install_exception_handlers(void); 140 87 extern void exception_init(void);
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