a7265d71c6
Squashed commit of the following:
Add procfs support to show stopped tasks. Add nxsig_action() to solve a chicken and egg problem: We needed to use sigaction to set default actions, but sigaction() would refuse to set actions if the default actions could not be caught or ignored.
sched/signal: Add configuration option to selectively enabled/disable default signal actions for SIGSTOP/SIGSTP/SIGCONT and SIGKILL/SIGINT. Fix some compilation issues.
sched/sched: Okay.. I figured out a way to handle state changes that may occur while they were stopped. If a task/thread was already blocked when SIGSTOP/SIGSTP was received, it will restart in the running state. I will appear that to the task/thread that the blocked condition was interrupt by a signal and returns the EINTR error.
sched/group and sched/sched: Finish framework for continue/resume logic.
sched/signal: Roughing out basic structure to support task suspend/resume
61 lines
2.4 KiB
Plaintext
61 lines
2.4 KiB
Plaintext
############################################################################
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# sched/signal/Make.defs
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#
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# Copyright (C) 2014, 2018 Gregory Nutt. All rights reserved.
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# Author: Gregory Nutt <gnutt@nuttx.org>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# 3. Neither the name NuttX nor the names of its contributors may be
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# used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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############################################################################
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ifneq ($(CONFIG_DISABLE_SIGNALS),y)
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CSRCS += sig_initialize.c
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CSRCS += sig_action.c sig_procmask.c sig_pending.c sig_suspend.c
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CSRCS += sig_kill.c sig_queue.c sig_waitinfo.c sig_timedwait.c
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CSRCS += sig_findaction.c sig_allocpendingsigaction.c
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CSRCS += sig_releasependingsigaction.c sig_unmaskpendingsignal.c
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CSRCS += sig_removependingsignal.c sig_releasependingsignal.c sig_lowest.c
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CSRCS += sig_mqnotempty.c sig_cleanup.c sig_dispatch.c sig_deliver.c
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CSRCS += sig_pause.c sig_nanosleep.c sig_usleep.c sig_sleep.c
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ifeq ($(CONFIG_SIG_DEFAULT),y)
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CSRCS += sig_default.c
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endif
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ifeq ($(CONFIG_SIG_EVTHREAD),y)
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CSRCS += sig_notification.c
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endif
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# Include signal build support
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DEPPATH += --dep-path signal
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VPATH += :signal
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endif
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