SAMA5D3-EK: Enable the procfs file system in the NSH configuration
This commit is contained in:
Gregory Nutt
parent
1c198f6a86
commit
19f66cd92b
@ -3287,8 +3287,8 @@ Configurations
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6. This configuration has support for NSH built-in applications enabled.
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7. This configuration has support for the FAT and ROMFS file systems
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built in.
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7. This configuration has support for the FAT, ROMFS, and PROCFS file
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systems built in.
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The FAT file system includes long file name support. Please be aware
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that Microsoft claims patents against the long file name support (see
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@ -3304,14 +3304,19 @@ Configurations
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CONFIG_FS_ROMFS=y : Enable ROMFS file system
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8. An NSH star-up script is provided by the ROMFS file system. The ROMFS
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The ROMFS file system is enabled simply with:
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CONFIG_FS_PROCFS=y : Enable PROCFS file system
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8. An NSH start-up script is provided by the ROMFS file system. The ROMFS
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file system is mounted at /etc and provides:
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|- dev/
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| `- ram0
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| |- ...
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| `- ram0 : ROMFS block driver
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`- etc/
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`- init.d/
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`- rcS
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`- rcS : Start-up script
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(There will, of course, be other devices uner /dev include /dev/console,
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/dev/null, /dev/zero, /dev/random, etc.).
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@ -3326,24 +3331,86 @@ Configurations
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The content of /etc/init.d/rcS can be see in the file rcS.template that
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can be found at: configs/sama5d4-ek/include/rcS.template:
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mkrd -m 2 -s 512 1024
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# Mount the procfs file system at /proc
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mount -f procfs /proc
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echo "rcS: Mounted /proc"
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# Create a RAMDISK at /dev/ram1, size 0.5MiB, format it with a FAT
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# file system and mount it at /tmp
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mkrd -m 1 -s 512 1024
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mkfatfs /dev/ram1
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mount -t vfat /dev/ram1 /tmp
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echo "rcS: Mounted /tmp"
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The above commands will create a RAM disk block device at /dev/ram1.
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The RAM disk will take 0.4MiB of memory (512 x 1024). Then it will
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create a FAT file system on the ram disk and mount it at /tmp. So
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after NSH starts and runs the rcS script, we will have:
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The above commands will mount the procfs file system at /proc and a
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RAM disk at /tmp.
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The second group of commands will: (1) Create a RAM disk block device
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at /dev/ram1 (mkrd). The RAM disk will take 0.4MiB of memory (512 x
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1024). Then it will then: (2) create a FAT file system on the ram
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disk (mkfatfs) and (3) mount it at /tmp (mount).
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So after NSH starts and runs the rcS script, we will have:
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|- dev/
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| |- ram0
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| `- ram2
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| |- ...
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| `- ram0 : ROMFS block driver
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| `- ram1 : RAM disk block driver
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|- etc/
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| `- init.d/
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| `- rcS
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`- tmp/
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`- rcS : Start-up script
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|- proc/
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| |- 0/ : Information about Task ID 0
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| | |- cmdline
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| | |- stack
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| | |- status
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| | `- group/
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| | |- fd
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| | `- status
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| |- 1/ : Information about Task ID 1
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| | `- ... : Same psuedo-directories as for Task ID 0
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| |- ... : ...
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| |- n/ : Information about Task ID n
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| | `- ...
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| |- uptime : Processor uptime
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`- tmp/
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The /tmp directory can them be used for and scratch purpose.
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The /tmp directory can them be used for and scratch purpose. The
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pseudo-files in the proc/ directory can be used to query properties
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of NuttX. As examples:
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nsh> cat /proc/1/stack
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StackBase: 0x2003b1e8
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StackSize: 2044
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nsh> cat /proc/uptime
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31.89
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nsh> cat /proc/1/status
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Name: work
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Type: Kernel thread
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State: Signal wait
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Priority: 192
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Scheduler: SCHED_FIFO
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SigMask: 00000000
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nsh> cat /proc/1/cmdline
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work
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nsh> cat /proc/1/group/status
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Flags: 0x00
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Members: 1
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nsh> cat /proc/1/group/fd
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FD POS OFLAGS
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0 0 0003
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1 0 0003
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2 0 0003
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SD RF TYP FLAGS
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9. The Real Time Clock/Calendar (RTC) is enabled in this configuration.
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See the section entitled "RTC" above for detailed configuration
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@ -1,6 +1,6 @@
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unsigned char romfs_img[] = {
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0x2d, 0x72, 0x6f, 0x6d, 0x31, 0x66, 0x73, 0x2d, 0x00, 0x00, 0x01, 0x50,
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0x9f, 0x13, 0x82, 0x87, 0x4e, 0x53, 0x48, 0x49, 0x6e, 0x69, 0x74, 0x56,
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0x2d, 0x72, 0x6f, 0x6d, 0x31, 0x66, 0x73, 0x2d, 0x00, 0x00, 0x02, 0x00,
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0xe7, 0x04, 0x63, 0xbd, 0x4e, 0x53, 0x48, 0x49, 0x6e, 0x69, 0x74, 0x56,
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0x6f, 0x6c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x49,
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0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0xd1, 0xff, 0xff, 0x97,
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0x2e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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@ -12,36 +12,36 @@ unsigned char romfs_img[] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa0,
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0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0xd1, 0xff, 0xff, 0x00,
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0x2e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x3a, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x6e, 0x8d, 0x9c, 0xab, 0x58, 0x72, 0x63, 0x53, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x23, 0x20, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x20, 0x61, 0x20, 0x52,
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0x41, 0x4d, 0x44, 0x49, 0x53, 0x4b, 0x20, 0x61, 0x6e, 0x64, 0x20, 0x6d,
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0x6f, 0x75, 0x6e, 0x74, 0x20, 0x69, 0x74, 0x20, 0x61, 0x74, 0x20, 0x2f,
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0x74, 0x6d, 0x70, 0x0a, 0x0a, 0x6d, 0x6b, 0x72, 0x64, 0x20, 0x2d, 0x6d,
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0x20, 0x32, 0x20, 0x2d, 0x73, 0x20, 0x35, 0x31, 0x32, 0x20, 0x31, 0x30,
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0x32, 0x34, 0x0a, 0x6d, 0x6b, 0x66, 0x61, 0x74, 0x66, 0x73, 0x20, 0x2f,
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0x64, 0x65, 0x76, 0x2f, 0x72, 0x61, 0x6d, 0x32, 0x0a, 0x6d, 0x6f, 0x75,
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0x6e, 0x74, 0x20, 0x2d, 0x74, 0x20, 0x76, 0x66, 0x61, 0x74, 0x20, 0x2f,
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0x64, 0x65, 0x76, 0x2f, 0x72, 0x61, 0x6d, 0x32, 0x20, 0x2f, 0x74, 0x6d,
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0x70, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20,
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0x00, 0x00, 0x00, 0x00, 0xd1, 0xd1, 0xff, 0xe0, 0x2e, 0x2e, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, 0x20,
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0x00, 0x00, 0x00, 0x00, 0xd1, 0xd1, 0xff, 0x20, 0x2e, 0x2e, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x1f,
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0x8d, 0x9c, 0xab, 0xd7, 0x72, 0x63, 0x53, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x23, 0x20, 0x4d, 0x6f,
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0x75, 0x6e, 0x74, 0x20, 0x74, 0x68, 0x65, 0x20, 0x70, 0x72, 0x6f, 0x63,
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0x66, 0x73, 0x20, 0x66, 0x69, 0x6c, 0x65, 0x20, 0x73, 0x79, 0x73, 0x74,
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0x65, 0x6d, 0x20, 0x61, 0x74, 0x20, 0x2f, 0x70, 0x72, 0x6f, 0x63, 0x0a,
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0x0a, 0x6d, 0x6f, 0x75, 0x6e, 0x74, 0x20, 0x2d, 0x74, 0x20, 0x70, 0x72,
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0x6f, 0x63, 0x66, 0x73, 0x20, 0x2f, 0x70, 0x72, 0x6f, 0x63, 0x0a, 0x65,
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0x63, 0x68, 0x6f, 0x20, 0x22, 0x72, 0x63, 0x53, 0x3a, 0x20, 0x4d, 0x6f,
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0x75, 0x6e, 0x74, 0x65, 0x64, 0x20, 0x2f, 0x70, 0x72, 0x6f, 0x63, 0x22,
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0x0a, 0x0a, 0x23, 0x20, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x20, 0x61,
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0x20, 0x52, 0x41, 0x4d, 0x44, 0x49, 0x53, 0x4b, 0x20, 0x61, 0x74, 0x20,
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0x2f, 0x64, 0x65, 0x76, 0x2f, 0x72, 0x61, 0x6d, 0x31, 0x2c, 0x20, 0x73,
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0x69, 0x7a, 0x65, 0x20, 0x30, 0x2e, 0x35, 0x4d, 0x69, 0x42, 0x2c, 0x20,
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0x66, 0x6f, 0x72, 0x6d, 0x61, 0x74, 0x20, 0x69, 0x74, 0x20, 0x77, 0x69,
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0x74, 0x68, 0x20, 0x61, 0x20, 0x46, 0x41, 0x54, 0x0a, 0x23, 0x20, 0x66,
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0x69, 0x6c, 0x65, 0x20, 0x73, 0x79, 0x73, 0x74, 0x65, 0x6d, 0x20, 0x61,
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0x6e, 0x64, 0x20, 0x6d, 0x6f, 0x75, 0x6e, 0x74, 0x20, 0x69, 0x74, 0x20,
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0x61, 0x74, 0x20, 0x2f, 0x74, 0x6d, 0x70, 0x0a, 0x0a, 0x6d, 0x6b, 0x72,
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0x64, 0x20, 0x2d, 0x6d, 0x20, 0x31, 0x20, 0x2d, 0x73, 0x20, 0x35, 0x31,
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0x32, 0x20, 0x31, 0x30, 0x32, 0x34, 0x0a, 0x6d, 0x6b, 0x66, 0x61, 0x74,
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0x66, 0x73, 0x20, 0x2f, 0x64, 0x65, 0x76, 0x2f, 0x72, 0x61, 0x6d, 0x31,
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0x0a, 0x6d, 0x6f, 0x75, 0x6e, 0x74, 0x20, 0x2d, 0x74, 0x20, 0x76, 0x66,
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0x61, 0x74, 0x20, 0x2f, 0x64, 0x65, 0x76, 0x2f, 0x72, 0x61, 0x6d, 0x31,
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0x20, 0x2f, 0x74, 0x6d, 0x70, 0x0a, 0x65, 0x63, 0x68, 0x6f, 0x20, 0x22,
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0x72, 0x63, 0x53, 0x3a, 0x20, 0x4d, 0x6f, 0x75, 0x6e, 0x74, 0x65, 0x64,
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0x20, 0x2f, 0x74, 0x6d, 0x70, 0x22, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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@ -1,6 +1,12 @@
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# Mount the procfs file system at /proc
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mount -t procfs /proc
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echo "rcS: Mounted /proc"
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# Create a RAMDISK at /dev/ram1, size 0.5MiB, format it with a FAT
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# file system and mount it at /tmp
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mkrd -m 2 -s 512 1024
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mkrd -m 1 -s 512 1024
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mkfatfs /dev/ram1
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mount -t vfat /dev/ram1 /tmp
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echo "rcS: Mounted /tmp"
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@ -707,7 +707,14 @@ CONFIG_FAT_MAXFNAME=32
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CONFIG_FS_ROMFS=y
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# CONFIG_FS_SMARTFS is not set
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# CONFIG_FS_BINFS is not set
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# CONFIG_FS_PROCFS is not set
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CONFIG_FS_PROCFS=y
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#
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# Exclude individual procfs entries
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#
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# CONFIG_FS_PROCFS_EXCLUDE_PROCESS is not set
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# CONFIG_FS_PROCFS_EXCLUDE_UPTIME is not set
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# CONFIG_FS_PROCFS_EXCLUDE_MOUNTS is not set
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#
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# System Logging
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@ -974,6 +981,7 @@ CONFIG_NSH_BUILTIN_APPS=y
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# CONFIG_NSH_CMDOPT_DF_H is not set
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CONFIG_NSH_CODECS_BUFSIZE=128
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# CONFIG_NSH_CMDOPT_HEXDUMP is not set
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CONFIG_NSH_PROC_MOUNTPOUNT="/proc"
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CONFIG_NSH_FILEIOSIZE=512
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CONFIG_NSH_LINELEN=80
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# CONFIG_NSH_DISABLE_SEMICOLON is not set
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