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#endif
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#endif
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/* RSE stack starts at the bottom of memory stack. */
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/* RSE stack starts at the bottom of memory stack. */
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#define context_set(c, _pc, stack, size)                                \
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#define context_set(c, _pc, stack, size)                                \
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    do {                                                \
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    do {                                                \
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        (c)->pc = (__address) _pc;                              \
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        (c)->pc = (uintptr_t) _pc;                              \
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        (c)->bsp = ((__address) stack) + ALIGN_UP((size), REGISTER_STACK_ALIGNMENT);        \
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        (c)->bsp = ((uintptr_t) stack) + ALIGN_UP((size), REGISTER_STACK_ALIGNMENT);        \
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        (c)->ar_pfs &= PFM_MASK;                                \
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        (c)->ar_pfs &= PFM_MASK;                                \
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        (c)->sp = ((__address) stack) + ALIGN_UP((size), STACK_ALIGNMENT) - SP_DELTA;       \
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        (c)->sp = ((uintptr_t) stack) + ALIGN_UP((size), STACK_ALIGNMENT) - SP_DELTA;       \
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    } while (0);
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    } while (0);
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/*
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/*
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 * Only save registers that must be preserved across
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 * Only save registers that must be preserved across
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 * function calls.
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 * function calls.
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struct context {
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struct context {
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    /*
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    /*
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     * Application registers
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     * Application registers
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     */
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     */
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    __u64 ar_pfs;
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    uint64_t ar_pfs;
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    __u64 ar_unat_caller;
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    uint64_t ar_unat_caller;
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    __u64 ar_unat_callee;
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    uint64_t ar_unat_callee;
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    __u64 ar_rsc;
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    uint64_t ar_rsc;
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    __address bsp;      /* ar_bsp */
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    uintptr_t bsp;      /* ar_bsp */
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    __u64 ar_rnat;
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    uint64_t ar_rnat;
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    __u64 ar_lc;
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    uint64_t ar_lc;
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    /*
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    /*
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     * General registers
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     * General registers
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     */
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     */
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    __u64 r1;
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    uint64_t r1;
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    __u64 r4;
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    uint64_t r4;
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    __u64 r5;
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    uint64_t r5;
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    __u64 r6;
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    uint64_t r6;
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    __u64 r7;
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    uint64_t r7;
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    __address sp;       /* r12 */
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    uintptr_t sp;       /* r12 */
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    __u64 r13;
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    uint64_t r13;
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    /*
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    /*
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     * Branch registers
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     * Branch registers
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     */
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     */
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    __address pc;       /* b0 */
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    uintptr_t pc;       /* b0 */
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    __u64 b1;
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    uint64_t b1;
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    __u64 b2;
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    uint64_t b2;
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    __u64 b3;
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    uint64_t b3;
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    __u64 b4;
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    uint64_t b4;
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    __u64 b5;
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    uint64_t b5;
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    /*
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    /*
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     * Predicate registers
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     * Predicate registers
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     */
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     */
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    __u64 pr;
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    uint64_t pr;
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    __r128 f2 __attribute__ ((aligned(16)));
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    __r128 f2 __attribute__ ((aligned(16)));
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    __r128 f3;
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    __r128 f3;
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    __r128 f4;
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    __r128 f4;
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    __r128 f5;
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    __r128 f5;