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Rev 3022 Rev 4668
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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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    (c)->pc = (uintptr_t) (_pc);        \
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    (c)->pc = (uintptr_t) (_pc);        \
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    (c)->sp = ((uintptr_t) (stack)) + (size) - SP_DELTA;
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    (c)->sp = ((uintptr_t) (stack)) + (size) - SP_DELTA;
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#endif /* context_set */
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#endif /* context_set */
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extern int context_save_arch(context_t *c);
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extern int context_save_arch(context_t *c) __attribute__ ((returns_twice));
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extern void context_restore_arch(context_t *c) __attribute__ ((noreturn));
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extern void context_restore_arch(context_t *c) __attribute__ ((noreturn));
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/** Save register context.
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/** Save register context.
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 *
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 *
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 * Save current register context (including stack pointers)
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 * Save current register context (including stack pointers)
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 * Note that this function does not normally return.
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 * Note that this function does not normally return.
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 * Instead, it returns at the same address as the
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 * Instead, it returns at the same address as the
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 * corresponding call to context_save(), the only
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 * corresponding call to context_save(), the only
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 * difference being return value.
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 * difference being return value.
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 *
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 *
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 * Note that content of any local variable defined by
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 * the caller of context_save() is undefined after
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 * context_restore().
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 *
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 * @param c Context structure.
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 * @param c Context structure.
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 */
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 */
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static inline void context_restore(context_t *c)
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static inline void context_restore(context_t *c)
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{
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{
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    context_restore_arch(c);
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    context_restore_arch(c);