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  • kernel/arch/arm32/include/exception.h

    r7a0359b r598f90e  
    3939
    4040#include <typedefs.h>
    41 #include <arch/regutils.h>
    42 #include <trace.h>
     41#include <arch/istate.h>
    4342
    4443/** If defined, forces using of high exception vectors. */
    … …  
    8584extern uintptr_t exc_stack;
    8685
    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 structure
    113  * @param retaddr new value of istate's PC member
    114  *
    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 
    13986extern void install_exception_handlers(void);
    14087extern void exception_init(void);
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