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dce3a9a47c
Headers 3 headers related to message registers and utcbs are now merged under utcb.h in libl4. Some message register definitions used by the kernel are now moved into kernel's glue/message.h. This avoids the duplication of same definitions. Also the total number of mregs are now determined by arch-specific kernel header, which is good.
20 lines
638 B
C
20 lines
638 B
C
/*
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* Userspace thread control block
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*
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* Copyright (C) 2007 Bahadir Balban
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*/
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#ifndef __GLUE_ARM_MESSAGE_H__
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#define __GLUE_ARM_MESSAGE_H__
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#define MR_TOTAL 6
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#define MR_TAG 0 /* Contains the purpose of message */
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#define MR_SENDER 1 /* For anythread receivers to discover sender */
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#define MR_RETURN 0 /* Contains the posix return value. */
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/* These define the mr start - end range that isn't used by userspace syslib */
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#define MR_UNUSED_START 2 /* The first mr that's not used by syslib.h */
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#define MR_UNUSED_TOTAL (MR_TOTAL - MR_UNUSED_START)
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#define MR_USABLE_TOTAL MR_UNUSED_TOTAL
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#endif /* __GLUE_ARM_MESSAGE_H__ */
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