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b1001b4e50
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47 Commits

Author SHA1 Message Date
Gregory Nutt
b1001b4e50 Update TODO list regarding non-queuing of signal actions; Add comments in code at areas where the issue applies. 2019-02-04 08:35:03 -06:00
Gregory Nutt
a77c073797 arch/: Fix an interlock that was broken by commit 641a98a434 in all implementations of up_sigdeliver. 2019-02-03 17:14:32 -06:00
Gregory Nutt
641a98a434 arch/: The saved return register state is available on the user stack. Thic commit reorders some logic so that certain, critical registers are preserved in the TCB. This does not make the logic 100% secure, but does prevent some obvious things. sched/signal/sig_delivery: Add a flag to the TCB to indicate that we are in a signal handler. Use this flag to assure that a there a never attempts to nest signal handling operations on a thread. This was guaranteed before but when locking of pre-emption during signal delivering was eliminated in a previous commit, there was a remote possibility of an attempt to do nested signal handling. This flag assures that there is only one signal handled at a time. 2019-02-03 15:29:47 -06:00
Xiang Xiao
763ba51b78 arch/xxx/src/xxx/up_assert.c: Dump CPU0 IDLE stack only when PID equals 0. IDLE threads of other CPUs do not need this special check 2019-01-26 10:59:23 -06:00
Gregory Nutt
db24306435 arch/assertion logic: Fix additional places where the test for an IDLE task is incorrect. It is not invalid in all configurations to check for PID==0. However, the logic fixed in these places lackes sufficient intelligence to find the right stack for the CPU IDLE thread and could still show the wrong stack. 2018-12-18 17:45:46 -06:00
Gregory Nutt
ec9265aa95 arch assertions: Correct duplicated logic from commit dbf01d12b7. Checking for PID == zero is not a valid way to test for the IDLE task in all configurations! This is only true in the single CPU configuration. In multiple CPU configurations, there will be a separate IDLE task for each CPU with a different PID. 2018-12-18 17:35:42 -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
Xiang Xiao
dbf01d12b7 Assertions: Identify the running task correctly when dumping task state information. It takes time to switch to the target task after g_readytorun has been modified. If panic/assert happen during this period, the dump will contain the incorrect and confusing information due to the difference between the real running task and the return value of this_task(). This change resolve this problem by adding g_running_task to track the real running task through the context switch. 2018-11-15 07:11:51 -06:00
Xiang Xiao
543f4ed8ec arch/ all assertion functions: up_assert move the register dump to first make the more important info first 2018-11-11 12:53:59 -06:00
Xiang Xiao
dfe788be25 arch/ all assertion functinos: up_stackdump dump the full stack if stack overflow the stack info is very useful to find the backtrace 2018-11-11 12:52:36 -06:00
Gregory Nutt
2b3ec4172d arch/: Add 'BOARD_ASSERT_RESET_VALUE' in config/Kconfig and replace reboot status '0' to 'CONFIG_BOARD_ASSERT_RESET_VALUE'. 2018-11-10 14:06:46 -06:00
Gregory Nutt
f4a5f7a3b9 arch/risc-v/src/gap8: The correct name of the chip.h should be gap8.h. This in analogy to other architectures. There is frequently a chip.h header file in the arch/src directory, but it has a different function. 2018-10-30 16:34:56 -06:00
Gregory Nutt
552f53e578 arch/risc-v/src/gap8/gap8_tim.c: Fix a typo that I introduced in my review. 2018-10-30 11:19:06 -06:00
Gregory Nutt
9e0ad7b98a arch/risc-v/src/gap8/startup_gap8.S: Remove commented out call to a non-existent function. 2018-10-30 10:39:51 -06:00
Gregory Nutt
e4562fc538 This commit brings in support for the GAP8 architecture. The GAP8 is a 1+8-core DSP-like RISC-V MCU. Also included is support for the Gapuino GAP8 evaluation board. 
Squashed commit of the following:

Author: Gregory Nutt <gnutt@nuttx.org>

    Completes review of configs/gapuino.
    arch/risc-v/include/gap8/chip.h:  Replace the moved chip.h header file with a dummy chip.h header file just to keep the system happy.
    Move include/gap8/chip.h to src/gap8/chip.h.  Internal details should not be exposed outside of arch/ and configs/.  Review all headers files in src/gap8
    Review of arch/risc-v/include.

Author: hhuysqt <hyq9606@126.com>

    corrected author and email
    Add app initialization, add signal support, cleanup irq context and configs
    fix some warnings
    gapuino initial port
    GAP8 initial port
 2018-10-30 09:38:50 -06:00
Xiang Xiao
36b46a6a40 arch/ and task/sched: vfork operation needs to allocate and copy the task argument too. Also correction of the address correction cannot depend on the stack pointer since it is not available in all architectures. Rather callculate the offset from the stack allocation pointer 2018-08-24 07:43:00 -06:00
Xiang Xiao
e1202d2ed3 Replace all ASSERT with DEBUGASSERT to save the code space 2018-08-24 06:58:30 -06:00
Xiang Xiao
467d2a58ea Replace non critical PANIC with DEBUGPANIC to save the code space 2018-08-24 06:21:15 -06:00
xuanlin
2c93467436 pthreads: Add support static pthread stack. Add standard pthread_attr_setstack() and pthread_attr_getstack(). In all cases where the stack is released, add check to see which allocator must be used to free the stack: The user or the kernel allocator. 2018-08-23 09:49:20 -06:00
Xiang Xiao
a465b6f0d4 configs/: Change CONFIG_BOARD_RESET_ON_CRASH to CONFIG_BOARD_RESET_ON_ASSERT, arch/: Implement call to board_reset() if in all implementations of up_assert() when CONFIG_BOARD_RESET_ON_ASSERT=y. 2018-08-22 17:04:39 -06:00
Gregory Nutt
c790450ba2 Remove CONFIG_ARCH_CALIBRATION. It is awkward to use and no longer necessary now that we have apps/examples/calib_udelay. 2018-08-19 10:06:36 -06:00
Gregory Nutt
c2267a57a0 Kconfig files: Fix several errors noted by Alex Denisov in Bitbucket issue 115. 2018-08-05 10:48:02 -06:00
Gregory Nutt
a94e3284b3 syslog: Enable is partial, crippled version of syslog_flush(); arch/: Call syslog_flush() from assertion handling logic. 2018-06-07 16:29:16 -06:00
Gregory Nutt
977d41d519 Based on a change recommended by Mark Shulte: 
Signal handlers maybe run with interrupts enabled or disabled, depending on how the task the received the signal was blocked. (i.e.: If sem_wait() is called, then we disable interrupts, then block the currently running task). This could be dangerous, because user code would be running with interrupts disabled.

This change forces interrupts to be enabled in up_sigdeliver() before executing the signal handler calling up_irq_enable() explicitly.  This is safe because, when we return to normal execution, interrupts will be restored to their previous state when the signal handler returns.
 2018-06-06 09:54:30 -06:00
Gregory Nutt
9222f50e1c arch/: Make sure the up_irq_enable() is available on all architectures. I will not be able to test all of these new versions of this function so this may break things for awhile. 2018-06-06 09:25:40 -06:00
Gregory Nutt
f88a4c6ea8 arch/risc-v/src: Make code follow pattern of other architectures better. Fix some coding standard issues. 2018-06-06 07:46:50 -06:00
Gregory Nutt
f2a89813f2 Build system: Remove fixed lib/ subdirectory and its content. Replace with new directory called staging/ that is created dynamically when building and removed when 'make clean' is done. This both improves the name and eliminates a garbage directory from the repository. 2018-05-29 11:36:21 -06:00
Gregory Nutt
de6b13b3ab Per OpenGroup.org, syslog -- and, hence, nonstandard vsyslog, and debug wrappers -- does not return a value. Rename _vsyslog to nx_vsyslog. Use internal nx_vsyslog in the few cases where a return value is required. 2018-03-04 08:07:07 -06:00
Gregory Nutt
1567b82429 Make sure that labeling is used consistently in all function headers (part 2). 2018-02-01 12:03:55 -06:00
Gregory Nutt
7cf88d7dbd Make sure that labeling is used consistently in all function headers. 2018-02-01 10:00:02 -06:00
Gregory Nutt
6e9039bb08 Squashed commit of the following: 
fs/userfs:  This completes coding of the UserFS client and of the UserFS feature in general.  This feature is being merged to main now because I believe it is innocuous.  It is, however, untesed.  The next step will be to develop a test case to verify the feature.
    fs/userfs:  Completes the request logic for the UserFS client.  Still need the logic that receives the responses.
    fs/userfs:  Completes coding for most of the server side of the user filesystem logic.
    fs/userfs:  Big design changes, simplications. Use Unix domain local sockets instead of message queues.  Easier to transfer big data in local sockets than message queues.  Remove character drvier 'factory' it is not necessary.
    fs/userfs:  Minor reparitioning; volume private info does not need to be held on the OS client side.
    libc/userfs:  Add some of the server side logic.
    fs/userfs:  Add some UserFS initialization logic.
    fs/userfs:  Add frame work for the UserFS proxy.  Remove all references to a block driver.  There is no block dricer... what was I thinking?
    fs/userfs: Add some initialization of the character driver, 'factory' device.
    fs/userfs:  Rename from fusefs to userfs to that we don't stomp on someone else's cool name.
    Add a header file describing the fusefs interface.
 2017-10-30 18:07:42 -06:00
Gregory Nutt
1c5ec07414 arch/: Remove dangling space at the end of lines. 2017-06-28 13:16:48 -06:00
Gregory Nutt
7fe112fe4c Kconfig/deconfigs: Add CONFIG_ARCH_TOOLCHAIN_GNU to indicate that the toolchain is based on GNU gcc/as/ld. This is in addition to the CPU-specific versions of the same definition. 2017-05-13 11:44:12 -06:00
Gregory Nutt
2043e1a114 IOBs: Move from driver/iob to a better location in mm/iob 2017-05-09 07:35:30 -06:00
Gregory Nutt
bfb93338f6 Move net/iob to drivers/iob so that the I/O buffering feature can be available to other drivers when networking is disabled. 2017-04-20 16:08:49 -06:00
Mark Schulte
9d22f5df35 Add argument to timer irq callback 2017-03-01 08:51:15 -06:00
Gregory Nutt
ac6e552ff7 Fixes for coding standard: '*' needs to 'snuggle' with following variable name 2017-02-28 18:37:44 -06:00
Gregory Nutt
dc93340a01 Convert more drivers to use new interrupt argument structure. 2017-02-28 09:29:09 -06:00
Mark Schulte
b3222bbc8a irq_dispatch: Add argument pointer to irq_dispatch 
Provide a user defined callback context for irq's, such that when
registering a callback users can provide a pointer that will get
passed back when the isr is called.
 2017-02-27 06:27:56 -06:00
Gregory Nutt
1d290c2b37 setvbuf: Add support for disabling I/O buffering. Initially cut; untested. 2017-02-09 09:24:44 -06:00
Gregory Nutt
62a1f6f110 up_timer_initialize() is named incorrectly. The prefix should be the architecture name, not up_ since it is private to the architecture. up_timerisr() is similarly misnamed and should also be private since it is used only with the xyz_timerisr.c files. Also updat TODO list. 2017-02-07 10:35:04 -06:00
Gregory Nutt
3ed091376c In all implementations of _exit(), use enter_critical_section() vs. disabling local interrupts. 2017-01-13 11:08:24 -06:00
Gregory Nutt
13d00344c9 Add configuration to prevent selection of Windows native toolchains when using Ubuntu under Windows 10 2017-01-02 07:16:47 -06:00
Gregory Nutt
b0dffdc2ca Fix a number of header files with mismatched 'extern C {' and '}' 2016-11-05 07:25:05 -06:00
Paul A. Patience
912fe06a86 Add architecture-specific inttypes.h 2016-10-27 16:01:38 -04:00
Ken Pettit
1e40e03c7f Minor RISC-V update 2016-10-21 17:01:40 -06:00
Ken Pettit
201a32cf8c Add support for the RISC-V architecture and configs/nr5m100-nexys4 board. I will be making the FPGA code for this available soon (within a week I would say). The board support on this is pretty thin, but it seems like maybe a good idea to get the base RISC-V stuff in since there are people interested in it. 2016-10-16 09:47:07 -06:00