Commit Graph

657 Commits

Author SHA1 Message Date
Juha Niskanen
f3490e42c3 Fix typos in comments 2020-03-03 09:11:57 -06:00
Xiang Xiao
b9b86fcc63 arch/sim: Handle tap device initializition failure gracefully 2020-02-24 08:42:03 -06:00
Xiang Xiao
96adb827a3 arch/sim: Ensure all host printf end with \r\n
Since simulator switch console to raw mode, we have to add \r manually
2020-02-24 08:41:45 -06:00
Xiang Xiao
cde88cabcc Run codespell -w with the latest dictonary again
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-02-23 22:27:46 +01:00
liuhaitao
b4cf5f5dab arch: refine up_serialinit/up_earlyserialinit/rpmsg_serialinit 2020-02-23 09:11:57 -06:00
Xiang Xiao
bd4e8e19d3 Run codespell -w against all files
and fix the wrong correction
2020-02-22 14:45:07 -06:00
Gregory Nutt
d06d8fbca2 Run all .c and .h files modified by PR301 through nxstyle. 2020-02-19 07:23:41 -06:00
Xiang Xiao
892290f76b syslog: Call syslog_rpmsg_init inside syslog_initialize like other syslog driver 2020-02-19 07:19:34 -06:00
Xiang Xiao
51a2171c71 ramlog: Remove g_ramlog_syslog_channel since it's same as g_default_channel
And remove syslog_init_e because all initialization is later now and we don't
distinguish the initialition phase anymore after ramlog don't need special
initialize.
2020-02-18 13:04:45 -06:00
Xiang Xiao
dcaaf2d912 ramlog: Remove all ramlog_consoleinit related code
Because we can get the same function by CONSOLE_SYSLOG/syslog_console_init.
BTW, it isn't a good choice to use g_ramlogfops as /dev/console since nsh
will read back what it send out which will surprise most people.
2020-02-18 12:57:43 -06:00
Xiang Xiao
6b77f73583 arch: Move iob_initialize into nx_start just after heap initialization
it doesn't make sense that iob initialization is in up_initialize
but other memory components initialization is called in nx_start

Change-Id: Id43aeaa995f340c5943f59a0067a483ff3ac34a2
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-02-18 10:26:19 -03:00
Xiang Xiao
e7d9260014 arch: Customize the typedef of size_t instead of intptr_t
To ensure size_t same as toolchain definition in the first place and rename CXX_NEWLONG to ARCH_SIZET_LONG.  The change also check whether __SIZE_TYPE__ exist before CONFIG_ARCH_SIZET_LONG so our definition can align with toolchain(gcc/clang) definition automatically.
2020-02-18 07:15:19 -06:00
Xiang Xiao
866a531899 sim/rtc: Don't change the host wall clock in sim_rtc_settime 2020-02-16 09:44:04 -06:00
Gregory Nutt
5d850fb197 arch/sim/src/sim/up_oneshot.c: Eliminate warning from build test. 2020-02-15 19:47:02 +01:00
Gregory Nutt
f5e0bb2d30 Run all files modified by PR274 through nxstyle. 2020-02-15 07:17:22 -06:00
Xiang Xiao
8b5658b918 arch/sim: Implement arch rtc interface on top of rtc driver 2020-02-15 07:17:19 -06:00
Xiang Xiao
d0d4b7a531 Reimplement arch alarm timer on top of oneshot driver framework
The benefit include:

1. Simplify the implementation
2. Support both tick and tickless automatically
3. No time drift in tickless mode
4. Support critmon arch API automatically
2020-02-15 07:17:16 -06:00
YAMAMOTO Takashi
1a3f59be58 sim: Make hostfs build for macOS
* Ignore O_DIRECT if the host OS doesn't provide it.
* Use statvfs instead of statfs. The former is in POSIX and
  more widely available these days.
2020-02-13 15:17:36 +08:00
YAMAMOTO Takashi
22d002762b sim: Add more names to nuttx-names.dat 2020-02-12 20:39:08 -06:00
YAMAMOTO Takashi
3d425280b6 simuart: Don't assume a specific endian 2020-02-12 20:38:25 -06:00
Gregory Nutt
5f306b0461 Run all .c and .h files modified by PR 249 through nxstyle. 2020-02-12 08:17:03 -06:00
Xiang Xiao
5e99e64d9f sim/net: Replace the busy polling with work
netdriver_loop should check there is data to read before queue the work
2020-02-12 08:16:43 -06:00
Xiang Xiao
5a00657ac4 arch/sim: Change CONFIG_NET_ETHERNET to CONFIG_SIM_NETDEV 2020-02-12 08:16:33 -06:00
Xiang Xiao
6b1187b402 arch/sim: Change the return type of netdriver_setmacaddr to void 2020-02-12 08:16:23 -06:00
Xiang Xiao
582b2af912 arch/sim: Change syslog to printf in up_tapdev.c
since this file is compiled with host environment, can't call NuttX's syslog
2020-02-12 08:16:08 -06:00
Ouss4
2ff43fb8a8 Run files modified by PR239 through nxstyle. 2020-02-11 21:09:12 +00:00
Xiang Xiao
e6c67bdd78 arch/sim: Drive up_x11update by work to simplify up_idle. 2020-02-11 21:07:22 +00:00
Xiang Xiao
14a82f40d2 arch/sim: Make eventloop as an internal variable to simplify up_idle. 2020-02-11 21:07:12 +00:00
Gregory Nutt
d09af3b7f3 Run .c and .h files modified by PR241 through nxstyle. 2020-02-10 08:57:20 -06:00
Xiang Xiao
f2f385902b arch/sim: Remove the unnecessary file guard
since the same protection is already done in Makefile
2020-02-10 08:57:06 -06:00
Xiang Xiao
7fd3a3bcca xarch/sim: Call pm_initialize from up_initialize directly
We don't need the additional flexibility since sim just has one chip.
2020-02-10 08:56:51 -06:00
Xiang Xiao
978575d79a arch/sim: Pass X11 related config to host environment
Remove the hard code CONFIG_SIM_X11NOSHM value from up_x11framebuffer.c
2020-02-10 08:56:37 -06:00
Xiang Xiao
856b62ca09 arch/sim: Fix X11 segmentation fault when CONFIG_SIM_X11NOSHM isn't enabled
up_x11mapsharedmem should assign the share memory to g_framebuffer
2020-02-10 08:56:22 -06:00
Xiang Xiao
406a9adfdd arch/sim: fix up_idle call the wrong pthread_yield version
The logic want the host version but link to NuttX version
2020-02-09 07:44:51 -06:00
Xiang Xiao
e06a4226ed arch/sim: Reuse the main thread as the simulated CPU0 2020-02-09 07:43:47 -06:00
Xiang Xiao
a87271617a arch/sim: Replace pthread mutex with atomic function for up_testset
up_testset may be called from signal hander but it isn't safe to call pthread API in that context
2020-02-09 07:43:10 -06:00
Xiang Xiao
7794dc8821 arch/sim: Set idle thread stack size to zero
To avoid ps generate "Segmentation fault" because do_stackcheck
check the stack color if the stack size doesn't equal zero
BTW, it is better to set idle task stack size to zero since idle
task use the host thread and the stack size from config isn't the
actual value.
2020-02-09 07:42:19 -06:00
Xiang Xiao
bfe1d471ce sim/arch: Fix up_head.c:122:11:implicit declaration of function 'up_cpu_index' 2020-02-09 07:41:42 -06:00
Xiang Xiao
04128b4570 arch/sim/src: Rename board_lcd.c to up_lcd.c like other sim code
Rename board_lcd.c to up_lcd.c like other sim code and compile up_spiflash.c and up_qspiflash.c conditionally
2020-02-08 08:52:34 -06:00
Xiang Xiao
fa3e66fe82 arch/sim/src/: Reimplement sim uart on top of serial driver framework
The benefits include:

1. Simplify the implementation
2. Support Ctrl+C automatically
3. Support poll automatically
4. Call pm_activity automatically
5. Save one polling thread
2020-02-08 07:52:26 -06:00
Xiang Xiao
6d69439f58 Call xxx_timer_initialize from clock subsystem
Call xxx_timer_initialize from clock subsystem to make timer ready for use as soon as possiblei and revert the workaround:

commit 0863e771a9
Author: Gregory Nutt <gnutt@nuttx.org>
Date:   Fri Apr 26 07:24:57 2019 -0600

    Revert "sched/clock/clock_initialize.c:  clock_inittime() needs to be done with CONFIG_SCHED_TICKLESS and clock_initialize should skip clock_inittime() for external RTC case since the RTC isn't ready yet."

    This reverts commit 2bc709d4b9.

    Commit 2bc709d4b9 was intended to handle the case where up_timer_gettime may not start from zero case.  However, this change has the side-effect of breaking every implementation of tickless mode:  After this change the tickless timer structures are used before they are initialized in clock_inittime().  Initialization happens later when up_initialize is called() when arm_timer_initialize().

    Since the tickless mode timer is very special, one solution might be to

    1. Rename xxx_timer_initialize to up_timer_initialize
    2  Move up_timer_initialize to include/nuttx/arch.h
    3.  Call it from clock subsystem instead up_initialize

    Basically, this change make timer initialization almost same as rtc initialization(up_rtc_initialize).

    For now, however, we just need to revert the change.
2020-02-08 07:40:06 -06:00
Xiang Xiao
76bbed07a4 Call up_irqinitialize from irq subsystem
Call up_irqinitialize from irq subsystem to make the irq ready for use as soon as possible
2020-02-08 07:39:22 -06:00
Xiang Xiao
a8de37fbec Ensure all source code end with one and only one newline
by this command:
git ls-files -z | while IFS= read -rd '' f; do tail -c1 < "$f" | read -r _ || echo >> "$f"; done
2020-02-08 07:25:56 -06:00
Xiang Xiao
c5b1554d84 Remove NETDEV_LOOPBACK option, NET_LOOPBACK is enough 2020-02-02 08:25:06 -06:00
Xiang Xiao
5c80b94820 Replace #include <semaphore.h> to #include <nuttx/semaphore.h>
Since the kernel side should call nxsem_xxx instead and remove the unused inclusion
2020-02-01 08:27:30 -06:00
Xiang Xiao
80277d1630
Refine the preprocessor conditional guard style (#190) 2020-01-31 19:07:39 +01:00
Xiang Xiao
68951e8d72 Remove exra whitespace from files (#189)
* Remove multiple newlines at the end of files
* Remove the whitespace from the end of lines
2020-01-31 09:24:49 -06:00
YAMAMOTO Takashi
2983fcdeb7 Fix an inverted logic in the following commit.
commit 39bd9ff670
	Author: YAMAMOTO Takashi <yamamoto@midokura.com>
	Date:   Wed Jan 29 00:17:05 2020 +0900

		sim: Prefix symbols with _ for non-ELF

		Namely for Mach-O.  Leave __CYGWIN__ case as it is.
2020-01-29 10:02:39 -08:00
YAMAMOTO Takashi
4174c818df sim: Don't bother to remove nuttx.rel after consuming
We usually don't remove input files like $OBJS.
2020-01-29 09:03:48 +01:00
YAMAMOTO Takashi
b5573c5b51 sim: Fix nuttx.rel for macOS
* ld doesn't have --start-groupi/--end-group things.  As far as I know,
  it works that way by default.

* objcopy with Mach-O support is not widely available.
  (GNU binutils seem to claim the support but it didn't actually work
  for me.  llvm-objcopy --redefine-syms explicitly rejects Mach-O.)
  Instead, use -unexported_symbols_list linker flag to hide symbols
  to avoid conflicts with host symbols.
2020-01-29 09:03:48 +01:00
YAMAMOTO Takashi
298c2e5e4f sim: Fix stack alignment
The recent x86-64 convention requires 16-byte alignment before
(not after) calling a function.

This fixes snprintf crash I observed on macOS while saving XMM registers.
2020-01-29 09:03:48 +01:00
YAMAMOTO Takashi
39bd9ff670 sim: Prefix symbols with _ for non-ELF
Namely for Mach-O.  Leave __CYGWIN__ case as it is.
2020-01-29 09:03:48 +01:00
YAMAMOTO Takashi
69a8b9721c sim: Check __ELF__ for .type/.size directives
Mach-O assembler doesn't have them either.
2020-01-29 09:03:48 +01:00
chao.an
4d74aa6ec9 sim/netdev: dependens on LPWORK by default
Change-Id: Ic2d42d29fc84bef1cc279ef443897d5191888e72
Signed-off-by: chao.an <anchao@xiaomi.com>
2020-01-21 14:17:24 +08:00
chao.an
1ff410957f sim/net: do not do any critical operations in idle
Change-Id: Ia9011b62ea61d15bd66aa063e4165d9d3baacb51
Signed-off-by: chao.an <anchao@xiaomi.com>
2020-01-16 11:01:47 -06:00
chao.an
5c5b4cc3c9 fix warning: passing argument 4 of up_x11initialize from incompatible pointer type
Change-Id: I8fbb506d104dd6a0c41c86ca977e28097694910b
Signed-off-by: chao.an <anchao@xiaomi.com>
2020-01-14 18:30:48 -06:00
patacongo
f00569816f Fix a few errors concerning use of section block comments in .c files: (#95)
1. No .c file should include a "Public Types" section.  Only a header file can define a public type.  A .c file can only define a private type.  Several files contained private type definitions.  The section that they were defined in, however, was incorrectly named "Public Types."  Those were easilty changed to "Private Types" which is what they are.

2. No .c file should include a "Public Function Prototypes" section.  All global function prototypes should be provided via a header file and never declared with a .c file.

For No. 2, I corrected as many cases as was reasonable for the time that I had available.  But there are still a dozen or so .c files that declare "Public Function Prototypes" within a .c file.  This is bad programming style.  These declarations should all be moved to the proper header files.
2020-01-14 00:37:54 +01:00
Xiang Xiao
6a3c2aded6 Fix wait loop and void cast (#24)
* Simplify EINTR/ECANCEL error handling

1. Add semaphore uninterruptible wait function
2 .Replace semaphore wait loop with a single uninterruptible wait
3. Replace all sem_xxx to nxsem_xxx

* Unify the void cast usage

1. Remove void cast for function because many place ignore the returned value witout cast
2. Replace void cast for variable with UNUSED macro
2020-01-02 10:54:43 -06:00
Xiang Xiao
87cf5c58ae Correct some problems with network timed events when there are multiple network devices in the configuration.
Squashed commit of the following:

Author: Gregory Nutt <gnutt@nuttx.org>

    Ran nxstyle against many of the affected files.  But this job was too big for today.  Many of the network drivers under arch are highly non-compiant and generate many, many faults from nxstyle.  Those will have to be visited again another day.

Author: Xiang Xiao <xiaoxiang@xiaomi.com>

    This effects all network drivers as well as timing related portions of net/: devif_poll_tcp_timer shouldn't be skipped in the multiple card case.  devif_timer will be called multiple time in one period if the multiple card exist, the elapsed time calculated for the first callback is right, but the flowing callback in the same period is wrong(very short) because the global variable g_polltimer is used in the calculation.  So let's pass the delay time to devif_timer and remove g_polltimer.
2019-12-24 10:37:30 -06:00
Xiang Xiao
68b0ba88af arch/sim/src/sim/up_framebuffer.c: Replace all _info/_err with ginfo/gerr. 2019-12-16 09:03:05 -06:00
Xiang Xiao
3a5e2b7ce7 arch/sim/src/: Simulator restore the console even error handler call host exit directly. 2019-12-16 09:01:25 -06:00
Xiang Xiao
6c362c8521 arch/sim/src/sim/: Remove unnecessary initialization log from simulator initialization. 2019-12-16 08:59:28 -06:00
Gregory Nutt
a4a23ef584 arch/sim/src/sim/up_hostfs.c, fs/hostfs/hostfs_rpmsg.c, include/nuttx/fs/hostfs.h: Sync nuttx_stat_s consistent with standard struct. Standard struct stat layout changed with commit ea577f1ddd31b3f67405cbb2a57806c47dd4dd63. 2019-12-13 08:35:00 -06:00
chao.an
b7e8670af1 arch/sim/ and boards/sim/sim/sim: Support OpenAMP between two simulator instances. Please read rpserver/rpproxy section in boards/sim/sim/sim/README.txt for more information. 2019-11-12 08:03:38 -06:00
Xiang Xiao
48de68c474 arch/sim/src/sim/up_hostfs.c: Fix warning: 'mapflags' may be used uninitialized in this function. 2019-11-11 09:01:51 -06:00
Xiang Xiao
5a3d9c7570 arch/sim/src/Makefile: Move all SMP stuff into one place for arch/sim. 2019-11-10 20:42:00 -06:00
Xiang Xiao
a4ce23518e arch/sim/src/sim: Replace all CONFIG_DEV_CONSOLE with USE_DEVCONSOLE for arch/sim and compile up_devconsole.c conditionally. 2019-11-10 20:40:38 -06:00
Xiang Xiao
db8a7ab39c arch/sim/src/sim/up_simuart.c: Remove CONFIG_SIM_UART_DATAPOST for arch/sim. It's very dangerous to call NuttX API from simuart_thread. 2019-11-10 20:38:25 -06:00
chao.an
f2428edd7d arch/sim/src/nuttx-names.dat: Add host ftruncate() support. 2019-11-09 10:07:07 -06:00
Matias Nitsche
e118d99bf5 drivers/power/pm: Historically, the NuttX PM subsystem has consisted of two functional components: (1) an "Upper" part that detects state changes based on a random walk driven by activity levels, and (2) and "lower" part that implementst the state changes.
This change decouples that upper activity-based logic from the lower random walk logic and allows use of other upper state detection logic (such as a custom, application-specific state machine).
2019-11-09 09:09:33 -06:00
Gregory Nutt
3e8366775f Run tools/nxstyle against some files. 2019-11-05 19:39:36 -06:00
Xiang Xiao
800e12fc42 arch/: Add rpmsg_serialini() call to every implementation of up_initialize() for rpmsg uart initialization. 2019-11-04 08:11:50 -06:00
Matias Nitsche
bca21c107f arch/sim/src/sim/up_idle.c: Report activity on simulated UART. 2019-10-24 08:15:29 -06:00
Matias N
ddbb38ac91 arch/sim/src/Makefile: Fixes missing recursion into sim board directory for dependency generation. 2019-10-24 08:10:55 -06:00
Matias N
7135abbd2c arch/sim/src/sim: Fixes compilation for sim target when enabling power management. 2019-10-22 07:30:33 -06:00
Matias N
5d5b861568 arch/sim/src/sim/up_tickless.c: Correct the calculation of the timer period. Fix some missing initialization of globals and missing return values. 2019-10-20 17:11:28 -06:00
Xiang Xiao
9f0502f8ba arch/sim/src/sim/up_hostfs.c: hostfs skip '.' and '..' in readdir' 2019-10-07 21:43:59 -06:00
Xiang Xiao
3bc62f1ccc Change space to tab and help to ---help--- in Kconfig files. 2019-10-05 21:39:12 -06:00
ligd
9924e88d1e arch/sim: Add stack color feature for ps command. 2019-09-28 10:46:12 -06:00
Juha Niskanen
c3d24571fb Fix some typos. Mostly inital->initial. 2019-09-27 06:32:32 -06:00
Gregory Nutt
9bd850295e arch/sim/src/Makefile: Fix dependency problem due to reorganization of some directories. 2019-08-26 17:31:29 -06:00
Nathan Hartman
be5a40c656 Fix typos in comments. 2019-08-21 09:32:59 -06:00
Gregory Nutt
240926c995 Beginning to update comments to reflect new organization of the boards/ sub-directory. 2019-08-08 08:46:54 -06:00
Gregory Nutt
eaaa73198b boards/Board.mk: Correct a simulator included path problem introduced by reorganization of arch/sim/src. 2019-08-08 07:17:43 -06:00
Gregory Nutt
c840ac2496 arch/sim: Even though the simulation has no chips, it needs to have CONFIG_ARCH_CHIP and chip sub-directories. Otherwise, we would have to treat it as a special case in the build system. 2019-08-07 16:05:00 -06:00
Alin Jerpelea
a1c991d921 Merged in alinjerpelea/nuttx (pull request #963)
Move boards to boards folder

* boards: rename configs folder to boards

    This is the proposed layout after the change:

    boards: - folder containing board folders
            <board>: - name of each board
                    drivers: - extra drivers specific for platform
                    include: - header files for the boars
                    scripts: - extra scripts specific for platform
                        src: - board specific code
                      tools: - extra tools specific for platform
                    <config>: - board specific configuration(s)

    Note:
    <xxx> names are dependent on platform

    This is a logical change to aim to the arch layout but this is a
    huge change it should be done in several steps to lower the risk.

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* Kconfig: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* Makefile: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* Makefile.*: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* Make.defs: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* .sh: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* .mk: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* .c & .h: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* .bat: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

Approved-by: Gregory Nutt <gnutt@nuttx.org>
2019-08-05 12:04:14 +00:00
Nathan Hartman
68d43d3679 Fix typos. 2019-08-04 14:50:28 -06:00
Nathan Hartman
32e9ba7604 Documenation/, configs/: ix typos and one HTML syntax error. Fix HTML syntax error in Documentation/NfsHowto.html: <coce> -> <code> html tag. 2019-07-30 16:10:15 -06:00
Gregory Nutt
eef2f4599e Commit 933e9e407b broke the simulator on a 64-bit platform. 2019-07-29 14:34:29 -06:00
Gregory Nutt
b49be4bb20 Squashed commit of the following:
arch/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    sched/ audio/ crypto/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    Documentation/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    fs/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    graphics/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    net/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    drivers/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    include/, syscall/, wireless/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    configs/:  Remove all references to CONFIG_DISABLE_POLL.  Standard POSIX poll can no longer be disabled.
2019-05-21 18:57:54 -06:00
Gregory Nutt
2c2729521b Abandon attempt to get common data structures for NX and the raw framebuffer cursor interface. This backs out several changes. 2019-04-07 18:00:40 -06:00
Gregory Nutt
04b723e447 Squashed commit of the following:
include/nuttx/nx/nxcursor.h:  Add a header file descrbing the implementation of an NX cursor interface.  There is no implementation in place yet.

    include/nuttx/video/cursor.h:  Separate out cursor definitions from fb.h.  Other graphic interfaces other than a framebuffer may support a cursor, possible a software cursor.
2019-04-06 12:18:05 -06:00
Gregory Nutt
9acb652e29 Rename sched_timer_expiration to nxsched_timer_expiration. That is the appropriate name for an internal sched/ function (still many named incorrectly). 2019-03-20 19:31:43 -06:00
Gregory Nutt
b290160b3b Rename sched_process_timer to nxsched_process_timer. That is the appropriate name for an internal sched/ function (still many named incorrectly). 2019-03-20 19:27:40 -06:00
Gregory Nutt
a64869aa67 CONFIG_NFILE_DESCRIPTORS=0 can no longer be used to disable the file system. NuttX with no file system does not make sense.
Squashed commit of the following:

    configs/:  The few configurations that formerly set CONFIG_NFILE_DESCRIPTORS=0 should not default, rather they should set the number of descriptors to 3.
    fs/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    tools/:  Tools updates for changes to usage of CONFIG_NFILE_DESCRIPTORS.
    syscall/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    libs/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    include/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    drivers/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    Documentation/:  Remove all references to CONFIG_NFILE_DESCRIPTORS == 0
    binfmt/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    arch/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    net/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    sched/:  Remove all conditional logic based on CONFIG_NFILE_DESCRIPTORS == 0
    sched/Kconfig:  CONFIG_NFILE_DESCRIPTORS may no longer to set to a value less than 3
    configs/:  Remove all settings for CONFIG_NFILE_DESCRIPTORS < 3
2019-02-11 12:09:26 -06:00
Gregory Nutt
a2e62f557d Squashed commit of the following:
sched/init/nx_bringup.c:  Fix a naming collision.
    sched/init:  Rename os_start() to nx_start()
    sched/init:  Rename os_smp* to nx_smp*
    sched/init:  Rename os_bringup to nx_bringup
    sched/init:  rename all internal static functions to begin with nx_ vs os_
2019-02-04 16:20:35 -06:00
Gregory Nutt
bb623d1e04 This commit renames all internal OS functions defined under sched/task so that they begin with the prefix. For example, nxtask_exit() vs. task_exit().
Squashed commit of the following:

    Trivial, cosmetic
    sched/, arch/, and include:  Rename task_vforkstart() as nxtask_vforkstart()
    sched/, arch/, and include:  Rename task_vforkabort() as nxtask_vforkabort()
    sched/, arch/, and include:  Rename task_vforksetup() as nxtask_vfork_setup()
    sched/:  Rename notify_cancellation() as nxnotify_cancellation()
    sched/:  Rename task_recover() to nxtask_recover()
    sched/task, sched/pthread/, Documentation/:  Rename task_argsetup() and task_terminate() to nxtask_argsetup() and nxtask_terminate(), respectively.
    sched/task:  Rename task_schedsetup() to nxtask_schedsetup()
    sched/ (plus some binfmt/, include/, and arch/):  Rename task_start() and task_starthook() to nxtask_start() and nxtask_starthook().
    arch/ and sched/:  Rename task_exit() and task_exithook() to nxtask_exit() and nxtask_exithook(), respectively.
    sched/task:  Rename all internal, static, functions to begin with the nx prefix.
2019-02-04 13:42:51 -06:00
Gregory Nutt
865cc85dfd sched/sched/sched_critmonitor.c: A correct a logic error. arch/sim/src/up_critmon.c: Use higher resolution timer. 2018-11-25 09:49:21 -06:00
Gregory Nutt
0af39e1493 arch/: Update all _exit() implementations for all architectures so that they correctly called the scheduler instumentation layer for the new task that runs when the old one exits. This missing instrumentation was confusing the Critical Section Monitor logic with uses this instrumentation to track the state of critical sections. 2018-11-24 18:20:57 -06:00
Gregory Nutt
095b597d34 sched/sched and fs/procfs: Fix some bus in critical section monitor found in testing 2018-11-24 17:58:35 -06:00