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Removed duplicate man pages.

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This commit is contained in:
Bahadir Balban
2009-12-02 19:47:03 +02:00
parent 510dfe82dd
commit cd9fcf8687
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47
docs/man/man7/l4_utcb.7
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.TH L4_UTCB 7 2009-11-02 "Codezero" "Codezero Programmer's Manual"
.SH NAME
.nf
.BR "UTCB" "- User visible thread control block"
.SH SYNOPSIS
.nf
UTCB is a memory block designated as thread local storage that also serves as storage space for per-thread message registers transferred during an IPC between two threads.
.fi
.SH DESCRIPTION
UTCB address is a virtual address that is unique for each thread available on the system and is discovered at run-time by reading the Kernel Interface Page.It also stores message registers that are transferred between threads during an IPC. Depending on whether the IPC is a send or a receive, the message register fields are either transferred to other threads, or overwritten by message registers of other threads. For details please refer to the
.BR L4_IPC ()
system call reference page.
UTCB address pool is predefined by the microkernel, but each individual address is allocated by the pagers.
.fi
UTCB may contain thread-local information. Currently on the ARM architecture, the only fields on the UTCB that are not message registers are the
.I saved_tag
and
.I saved_sender
fields, which are used for saving the context of an earlier IPC if a new IPC is going to be made before finishing the first one in a stacked fashion.
.fi
The UTCB structure is subject to change. New fields may be reserved on the UTCB as needed.
.ti 10
.BI "struct " "utcb "
{
.ti 18
.BI "u32 " "mr[MR_TOTAL]" "; /* MRs that are mapped to real registers */"
.ti 18
.BI "u32 " "saved_tag" "; /* Saved tag field for stacked ipcs */"
.ti 18
.BI "u32 " "saved_sender" "; /* Saved sender field for stacked ipcs */"
.ti 18
.BI "u32 " "mr_rest[MR_REST]" "; /* Complete the utcb for up to 64 words */"
.ti 10
};
.in 8
.SH L4 Userspace Library Functions
.nf
/* Functions to read/write utcb registers */
.BI "static inline unsigned int read_mr(int " "offset");
.BI "static inline void write_mr(unsigned int " "offset," "unsigned int " "val" ")"

28
docs/man/man7/thread_control.7
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.\"
.\" Man page for the Codezero Project
.\"
.\" L4 Thread Control system call
.\"
.TH L4_THREAD_CONTROL 7 2009-10-21 "Codezero" "Codezero Programmer's Manual"
.SH NAME
l4_thread_control \- Create a new thread in the system
.SH SYNOPSIS
.B #include <l4lib/arch/syscalls.h>
.br
.B #include <l4lib/arch/syslib.h>
.sp
.BI "int l4_thread_control(unsigned int " "action, " "struct task_ids * " "ids) "
.sp
.SH DESCRIPTION
.B l4_thread_control()
manipulates threads in the system.
.I action
field is the main action specifier where one of
.BR THREAD_CREATE,
.BR THREAD_RUN,
.BR THREAD_SUSPEND,
.BR THREAD_RESUME,
.BR THREAD_DESTROY,
.BR THREAD_RECYCLE,
may be supplied as valid actions.