47 lines
1.3 KiB
Plaintext
47 lines
1.3 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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config SYSTEM_POPEN
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bool "popen()/pclose() Functions"
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default n
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select SCHED_WAITPID
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depends on NSH_LIBRARY
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---help---
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Enable support for the popen() and pclose() interfaces.
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This will support execution of NSH commands from C code with
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pipe communications with the shell.
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if SYSTEM_POPEN
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config SYSTEM_POPEN_SHPATH
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string "Path to shell command"
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default "/bin/nsh"
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depends on SYSTEM_NSH=m
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---help---
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This is the full path to the program in a mounted file system that
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implements the system() command. That is, a program that starts the
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NSH shell, executes one command (in argv[1]), then exits.
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config SYSTEM_POPEN_STACKSIZE
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int "Shell stack size"
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default 2048 if !ARCH_SIM
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default 4096 if ARCH_SIM
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---help---
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The size of stack allocated for the shell.
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NOTE: I needed to set the stack size quite large to get this example
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working on the simulated target (perhaps because of the 64-bit
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stack? Or perhaps that is a sneak call into the host libc that I
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have not caught). I assume that a smaller stack would be okay on
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real hardware, but I have not yet verified that.
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config SYSTEM_POPEN_PRIORITY
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int "Shell priority"
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default 100
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---help---
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The priority of the shell.
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endif
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