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Add syscall directory 

git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@3438 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo 2011-03-30 02:59:01 +00:00
parent 0559e511ba
commit 54a87e1e91
8 changed files with 299 additions and 6 deletions
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2
nuttx/include/pthread.h
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@ -1,7 +1,7 @@
/********************************************************************************
* pthread.h
*
* Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
* Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without

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nuttx/include/signal.h
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/********************************************************************************
* include/signal.h
*
* Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
* Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without

2
nuttx/include/stdio.h
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@ -1,7 +1,7 @@
/****************************************************************************
* include/stdio.h
*
* Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
* Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without

2
nuttx/include/sys/select.h
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/****************************************************************************
* include/sys/select.h
*
* Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
* Copyright (C) 2008-2009, 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without

2
nuttx/include/sys/socket.h
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/****************************************************************************
* sys/socket.h
*
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
* Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without

2
nuttx/include/time.h
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@ -1,7 +1,7 @@
/********************************************************************************
* include/time.h
*
* Copyright (C) 2007-2010 Gregory Nutt. All rights reserved.
* Copyright (C) 2007-2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without

107
nuttx/syscall/README.txt Normal file
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sycall/README.txt
=================
This directory supports a syscall layer from communication between a
monolithic, kernel-mode NuttX kernel and a separately built, user-mode
application set.
With most MCUs, NuttX is built as a flat, single executable image
containing the NuttX RTOS along with all application code. The RTOS code
and the application run in the same address space and at the same kernel-
mode privileges. In order to exploit security features of certain
processors, an alternative build model is also supported: NuttX can
be built separately as a monolithic, kernel-mode module and the applications
can be add as a separately built, user-mode module.
The syscall layer provided in this directory serves as the communication
layer from the user-mode application into the kernel-mode RTOS. The
switch from user-mode to kernel-mode is accomplished using software
interrupts (SWIs). SWIs are implemented differently and named differently
by different manufacters but all work essentially the same: A special
instruction is executed in user-mode that causes a software generated
interrupt. The software generated interrrupt is caught within the kernel
and handle in kernel-mode.
Header Files
============
include/syscall.h
This header file supports general access to SWI facilities. It is simply
a wrapper file that includes include/sys/syscall.h and
include/arch/syscall.h.
include/sys/syscall.h
The SWIs received by the kernel are distinguish by a code that identifies
how to process the SWI. This header file defines all such codes understood
by the NuttX kernel.
include/arch/syscall.h (or arch/<cpu>/include/syscall.h)
This header file is provided by the platform-specific logic and declares
(or defines) the mechanism for providing software interrupts on this
platform. The following functions must be declared (or defined) in this
header file:
- SWI with SYS_ call number and one parameter
uintptr_t sys_call0(unsigned int nbr);
- SWI with SYS_ call number and one parameter
uintptr_t sys_call1(unsigned int nbr, uintptr_t parm1);
- SWI with SYS_ call number and two parameters
uintptr_t sys_call2(unsigned int nbr, uintptr_t parm1, uintptr_t parm2);
- SWI with SYS_ call number and three parameters
uintptr_t sys_call3(unsigned int nbr, uintptr_t parm1,
uintptr_t parm2, uintptr_t parm3);
- SWI with SYS_ call number and four parameters
uintptr_t sys_call4(unsigned int nbr, uintptr_t parm1, uintptr_t parm2,
uintptr_t parm3, uintptr_t parm4);
- SWI with SYS_ call number and five parameters
uintptr_t sys_call5(unsigned int nbr, uintptr_t parm1, uintptr_t parm2,
uintptr_t parm3, uintptr_t parm4, uintptr_t parm5);
- SWI with SYS_ call number and six parameters
uintptr_t sys_call6(unsigned int nbr, uintptr_t parm1, uintptr_t parm2,
uintptr_t parm3, uintptr_t parm4, uintptr_t parm5,
uintptr_t parm6);
Syscall Database
================
Sycall information is maintained in a database. That "database" is
implemented as a simple comma-separated-value file, syscall.csv. Most
spreadsheets programs will accept this format and can be used to maintain
the syscall database.
The format of the CVS file for each line is:
Field 1: Function name
Field 2: The header file that contains the function prototype
Field 3: The type of function return value.
Field 4 - N+4: The type of each of the N formal parameters of the function
Auto-Generated Files
====================
Stubs and proxies for the sycalls are automatically generated from this CSV
database. Here the following definition is used:
STUB - A tiny bit of code that executes with within the NuttX kernel that
is used to map a software interrupt received by the kernel to a
kernel function call.
Proxy - Another tiny bit of code that executes in the user space. A proxy
has exactly the same function prototype as does the "real" function
for which it proxies. However, it only serves to map the function
call into a syscall, marshalling all of the parameters as necessary.

186
nuttx/syscall/syscall.csv Normal file
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"_exit","unistd.h","void","int"
"abort","stdlib.h","void"
"accept","sys/socket.h","int","int","struct sockaddr*","socklen_t*"
"atexit","stdlib.h","int","void *(*)(void)"
"bind","sys/socket.h","int","int","FAR const struct sockaddr*","socklen_t"
"chdir","unistd.h","int","FAR const char*"
"clearenv","stdlib.h","int"
"clock_getres","time.h","int","clockid_t","struct timespec*"
"clock_gettime","time.h","int","clockid_t","struct timespec*"
"clock_settime","time.h","int","clockid_t","const struct timespec*"
"close","unistd.h","int","int"
"closedir","dirent.h","int","FAR DIR*"
"connect","sys/socket.h","int","int","FAR const struct sockaddr*","socklen_t"
"creat","fcntl.h","int","const char*","mode_t"
"dup","unistd.h","int","int"
"dup2","unistd.h","int","int","int"
"exit","stdlib.h","void","int"
"fcntl","fcntl.h","int","int","int","..."
"fstat","sys/stat.h","int","int","FAR struct stat*"
"fstatfs","sys/statfs.h","int","int","struct statfs*"
"fsync","unistd.h","int","int"
"get_environ_ptr","stdlib.h","FAR char**"," void "
"get_errno_ptr","errno.h","FAR int*"
"getcwd","unistd.h","FAR char*","FAR char*","size_t"
"getenv","stdlib.h","FAR char*","FAR const char*"
"getpid","unistd.h","pidt_t"
"getsockopt","sys/socket.h","int","int","int","int","FAR void*","FAR socklen_t*"
"gettimeofday","sys/time.h","int","struct timeval*","FAR void*"
"ioctl","sys/ioctl.h","int","int","int","unsigned long"
"kill","signal.h","int","pid_t","int"
"listen","sys/socket.h","int","int","int"
"lseek","unistd.h","off_t","int","off_t offset","int"
"mkdir","sys/stat.h","int","FAR const char*","mode_t mode"
"mkfifo","sys/stat.h","int","FAR const char*","mode_t mode"
"mmap","sys/mman.h","FAR void*","FAR void*","size_t","int","int","int","off_t"
"mount","sys/mount.h","int","const char*","const char*","const char*","unsigned long","const void*"
"mq_close","mqueue.h","int","mqd_t"
"mq_getattr","mqueue.h","int","mqd_t","struct mq_attr*"
"mq_notify","mqueue.h","int","mqd_t","const struct sigevent*"
"mq_open","mqueue.h","mqd_t","const char*","int","..."
"mq_receive","mqueue.h","ssize_t","mqd_t","void*","size_t","int*"
"mq_send","mqueue.h","int","mqd_t","const void*","size_t","int"
"mq_setattr","mqueue.h","int","mqd_t","const struct mq_attr*","struct mq_attr*"
"mq_timedreceive","mqueue.h","ssize_t","mqd_t","void*","size_t","int","const struct timespec*"
"mq_timedsend","mqueue.h","int","mqd_t","const char*","size_t","int prio","const struct timespec*"
"mq_unlink","mqueue.h","int","const char*"
"open","fcntl.h","int","const char*","int","..."
"opendir","dirent.h","FAR DIR*","FAR const char*"
"pipe","unistd.h","int","int[2]"
"poll","poll.h","int","FAR struct pollfd*","nfds_t","int"
"pthread_attr_destroy","pthread.h","int","pthread_attr_t*"
"pthread_attr_getinheritsched","pthread.h","int","FAR const pthread_attr_t*","FAR int*"
"pthread_attr_getschedparam","pthread.h","int","FAR pthread_attr_t*","FAR struct sched_param*"
"pthread_attr_getschedpolicy","pthread.h","int","FAR pthread_attr_t*","int*"
"pthread_attr_getstacksize","pthread.h","int","FAR pthread_attr_t*","long*"
"pthread_attr_init","pthread.h","int","FAR pthread_attr_t*"
"pthread_attr_setinheritsched","pthread.h","int","FAR pthread_attr_t*","int"
"pthread_attr_setschedparam","pthread.h","int","FAR pthread_attr_t*","FAR const struct sched_param*"
"pthread_attr_setschedpolicy","pthread.h","int","FAR pthread_attr_t*","int"
"pthread_attr_setstacksize","pthread.h","int","FAR pthread_attr_t*","long"
"pthread_barrier_destroy","pthread.h","int","FAR pthread_barrier_t*"
"pthread_barrier_init","pthread.h","int","FAR pthread_barrier_t*","FAR const pthread_barrierattr_t*","unsigned int"
"pthread_barrier_wait","pthread.h","int","FAR pthread_barrier_t*"
"pthread_barrierattr_destroy","pthread.h","int","FAR pthread_barrierattr_t*"
"pthread_barrierattr_getpshared","pthread.h","int","FAR const pthread_barrierattr_t*","FAR int*"
"pthread_barrierattr_init","pthread.h","int","FAR pthread_barrierattr_t*"
"pthread_barrierattr_setpshared","pthread.h","int","FAR pthread_barrierattr_t*","int"
"pthread_cancel","pthread.h","int","pthread_t"
"pthread_cond_broadcast","pthread.h","int","FAR pthread_cond_t*"
"pthread_cond_destroy","pthread.h","int","FAR pthread_cond_t*"
"pthread_cond_init","pthread.h","int","FAR pthread_cond_t*","FAR pthread_condattr_t*"
"pthread_cond_signal","pthread.h","int","FAR pthread_cond_t*"
"pthread_cond_timedwait","pthread.h","int","FAR pthread_cond_t*","FAR pthread_mutex_t*","FAR const struct timespec*"
"pthread_cond_wait","pthread.h","int","FAR pthread_cond_t*","FAR pthread_mutex_t*"
"pthread_condattr_destroy","pthread.h","int","FAR pthread_condattr_t*"
"pthread_condattr_init","pthread.h","int","FAR pthread_condattr_t*"
"pthread_create","pthread.h","int","FAR pthread_t*","FAR pthread_attr_t*","pthread_startroutine_t","pthread_addr_t"
"pthread_detach","pthread.h","int","pthread_t"
"pthread_exit","pthread.h","void","pthread_addr_t"
"pthread_getschedparam","pthread.h","int","pthread_t","FAR int*","FAR struct sched_param*"
"pthread_getspecific","pthread.h","FAR void*","pthread_key_t"
"pthread_join","pthread.h","int","pthread_t","FAR pthread_addr_t*"
"pthread_key_create","pthread.h","int","FAR pthread_key_t*","CODE void (*)(FAR void*)"
"pthread_key_delete","pthread.h","int","pthread_key_t"
"pthread_kill","pthread.h","int","pthread_t","int"
"pthread_mutex_destroy","pthread.h","int","FAR pthread_mutex_t*"
"pthread_mutex_init","pthread.h","int","FAR pthread_mutex_t*","FAR pthread_mutexattr_t*"
"pthread_mutex_lock","pthread.h","int","FAR pthread_mutex_t*"
"pthread_mutex_trylock","pthread.h","int","FAR pthread_mutex_t*"
"pthread_mutex_unlock","pthread.h","int","FAR pthread_mutex_t*"
"pthread_mutexattr_destroy","pthread.h","int","FAR pthread_mutexattr_t*"
"pthread_mutexattr_getpshared","pthread.h","int","FAR pthread_mutexattr_t*","FAR int*"
"pthread_mutexattr_gettype","pthread.h","int","const pthread_mutexattr_t*","int*"
"pthread_mutexattr_init","pthread.h","int","FAR pthread_mutexattr_t*"
"pthread_mutexattr_setpshared","pthread.h","int","FAR pthread_mutexattr_t*","int"
"pthread_mutexattr_settype","pthread.h","int","pthread_mutexattr_t*","int"
"pthread_once","pthread.h","int","FAR pthread_once_t*","CODE void (*)(void)"
"pthread_setcancelstate","pthread.h","int","int","FAR int*"
"pthread_setschedparam","pthread.h","int","pthread_t","int","FAR const struct sched_param*"
"pthread_setschedprio","pthread.h","int","pthread_t","int"
"pthread_setspecific","pthread.h","int","pthread_key_t","FAR void*"
"pthread_sigmask","pthread.h","int","int","FAR const sigset_t*","FAR sigset_t*"
"pthread_testcancel","pthread.h","void"
"pthread_yield","pthread.h","void"
"putenv","stdlib.h","int","FAR const char*"
"read","unistd.h","ssize_t","int","FAR void*","size_t"
"readdir","dirent.h","FAR struct dirent*","FAR DIR*"
"readdir_r","dirent.h","int","FAR DIR*","FAR struct dirent*","FAR struct dirent**"
"recv","sys/socket.h","ssize_t","int","FAR void*","size_t","int"
"recvfrom","sys/socket.h","ssize_t","int","FAR void*","size_t","int","FAR struct sockaddr*","FAR socklen_t*"
"rename","stdio.h","int","FAR const char*","FAR const char*"
"rewinddir","dirent.h","void","FAR DIR*"
"rmdir","unistd.h","int","FAR const char*"
"sched_get_priority_max","sched.h","int","int"
"sched_get_priority_min","sched.h","int","int"
"sched_getparam","sched.h","int","pid_t","struct sched_param*"
"sched_getscheduler","sched.h","int","pid_t"
"sched_lock","sched.h","int"
"sched_lockcount","sched.h","int32_t"
"sched_note_start","sched.h","void","FAR _TCB* "
"sched_note_stop","sched.h","void","FAR _TCB* "
"sched_note_switch","sched.h","void","FAR _TCB*","FAR _TCB*"
"sched_rr_get_interval","sched.h","int","pid_t","struct timespec*"
"sched_setparam","sched.h","int","pid_t","const struct sched_param*"
"sched_setscheduler","sched.h","int","pid_t","int","const struct sched_param*"
"sched_unlock","sched.h","int"
"sched_yield","sched.h","int"
"seekdir","dirent.h","void","FAR DIR*","off_t"
"select","sys/select.h","int","int","FAR fd_set*","FAR fd_set*","FAR fd_set*","FAR struct timeval*"
"sem_close","semaphore.h","int","FAR sem_t*"
"sem_destroy","semaphore.h","int","FAR sem_t*"
"sem_getvalue","semaphore.h","int","FAR sem_t*","FAR int*"
"sem_init","semaphore.h","int","FAR sem_t*","int","unsigned int value"
"sem_open","semaphore.h","FAR sem_t*","FAR const char*","int","..."
"sem_post","semaphore.h","int","FAR sem_t*"
"sem_trywait","semaphore.h","int","FAR sem_t*"
"sem_unlink","semaphore.h","int","FAR const char*"
"sem_wait","semaphore.h","int","FAR sem_t*"
"send","sys/socket.h","ssize_t","int","FAR const void*","size_t","int"
"sendto","sys/socket.h","ssize_t","int","FAR const void*","size_t","int","FAR const struct sockaddr*","socklen_t"
"setenv","stdlib.h","int","const char*","const char*","int"
"setsockopt","sys/socket.h","int","int","int","int","FAR const void*","socklen_t"
"sigaction","signal.h","int","int","FAR const struct sigaction*","FAR struct sigaction*"
"sigaddset","signal.h","int","FAR sigset_t*","int"
"sigdelset","signal.h","int","FAR sigset_t*","int"
"sigemptyset","signal.h","int","FAR sigset_t*"
"sigfillset","signal.h","int","FAR sigset_t*"
"sigismember","signal.h","int","FAR const sigset_t*","int"
"sigpending","signal.h","int","FAR sigset_t*"
"sigprocmask","signal.h","int","int","FAR const sigset_t*","FAR sigset_t*"
"sigqueue","signal.h","int","int","int","FAR void*"
"sigqueue","signal.h","int","int","int","union sigval"
"sigsuspend","signal.h","int","FAR const sigset_t*"
"sigtimedwait","signal.h","int","FAR const sigset_t*","FAR struct siginfo*","FAR const struct timespec*"
"sigwaitinfo","signal.h","int","FAR const sigset_t*","FAR struct siginfo*"
"sleep","unistd.h","unsigned int","unsigned int"
"snprintf","stdio.h","int","FAR char*","size_t","const char*","..."
"socket","sys/socket.h","int","int","int","int"
"stat","sys/stat.h","int","const char*","FAR struct stat*"
"statfs","stdio.h","int","FAR const char*","FAR struct statfs*"
"statfs","sys/statfs.h","int","const char*","struct statfs*"
"task_activate","sched.h","int","FAR _TCB*"
"task_create","sched.h","int","const char*","int","int","main_t","const char*[]"
"task_create","sched.h","int","const char*","int","main_t","const char*[]"
"task_delete","sched.h","int","pid_t"
"task_init","sched.h","int","FAR _TCB*","const char*","int","FAR uint32_t*","uint32_t","main_t","const char*[]"
"task_init","sched.h","int","FAR _TCB*","const char*","int","main_t","const char*[]"
"task_restart","sched.h","int","pid_t"
"telldir","dirent.h","off_t","FAR DIR*"
"timer_create","time.h","int","clockid_t","FAR struct sigevent*","FAR timer_t*"
"timer_delete","time.h","int","timer_t"
"timer_getoverrun","time.h","int","timer_t"
"timer_gettime","time.h","int","timer_t","FAR struct itimerspec*"
"timer_settime","time.h","int","timer_t","int","FAR const struct itimerspec*","FAR struct itimerspec*"
"umount","sys/mount.h","int","const char*"
"unlink","unistd.h","int","FAR const char*"
"unsetenv","stdlib.h","int","const char*"
"up_assert","assert.h","void","FAR const uint8_t*","int"
"up_assert","assert.h","void"
"up_assert_code","assert.h","void","FAR const uint8_t*","int","int"
"up_assert_code","assert.h","void","int"
"usleep","unistd.h","void","useconds_t"
"wait","sys/wait.h","pidt_t","int*"
"waitid","sys/wait.h","int","idtype_t","id_t id","siginfo_t*","int"
"waitpid","sys/wait.h","pidt_t","pid_t","int*","int"
"write","unistd.h","ssize_t","int","FAR const void*","size_t"
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