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cab2e8bdd3
Finished adding untested shm syscalls. Finished adding untested l4 send/recv helpers Everything compiles. Now going to fix lots of bugs ;-)
45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
#ifndef __ARM_UTCB_H__
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#define __ARM_UTCB_H__
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#include <l4lib/types.h>
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#include <l4lib/arch/vregs.h>
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/* FIXME: LICENSE/LICENCE */
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/*
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* NOTE: In syslib.h the first few mrs are used by data frequently
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* needed for all ipcs. Those mrs are defined here.
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*/
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/* MRs always used on receive by syslib */
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#define MR_RETURN 0 /* Contains the posix return value. */
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/* MRs always used on send by syslib */
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#define MR_TAG 0 /* Defines the message purpose */
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#define MR_SENDER 1 /* For anythread receivers to discover sender */
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/* These define the mr start - end range that aren't used by 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_TOTAL 6
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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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/* Compact utcb for now! :-) */
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struct utcb {
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u32 mr[MR_TOTAL];
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u32 tid; /* Thread id */
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/*
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* This field is used by servers as the ptr to current tcb,
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* i.e. the task that this server is serving to.
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*/
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unsigned long usr_handle;
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};
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static inline struct utcb *__L4_ARM_Utcb()
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{
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return (struct utcb *)(*(struct utcb **)USER_UTCB_REF);
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}
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#endif /* __ARM_UTCB_H__ */
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