Commit Graph

8 Commits

Author SHA1 Message Date
Alan Carvalho de Assis
7133f89cc2 tools/Makefile.unix, .win, and all defconfig files: Modify tools/Makefiles to add warning on defconfig files 2019-03-03 08:31:03 -06:00
nchao
6509a0c0ca binfmt/ and libs/libc: Make exepath_*() more common:
1. Move exepath_*() related code to libc/misc
  1. Rename exepath_ to envpath_
  2. Rename BINFMT_EXEPATH to LIB_ENVPATH

libs/libc/modlib:  Add pre module library symbol table support
2018-11-08 07:27:14 -06:00
Gregory Nutt
bbad69ab61 Change all occurrences of CONFIG_EXAMPLES_NSH* to CONFIG_SYSTEM_NSH* to match changes in the apps/ directory. 2018-08-18 09:14:59 -06:00
Gregory Nutt
668df010ec Committed defconfigs for working configurations should never have CONFIG_EXPERIMENTAL set because the opens the doors for untested and incomplete configurations. Conversely, if there are released configurations that use features with dependencies on CONFIG_EXPERIMENTAL, then those configurations are in use and those dependencies should be removed:
graphics/vnc/server/Kconfig:  Remove a dependency on CONFIG_EXPERIMENTAL
net/tcp/Kconfig:  Remove a dependency on CONFIG_EXPERIMENTAL
wireless/bluetooth/Kconfig:  Remove a dependency on CONFIG_EXPERIMENTAL

configs/lc823450-xgevk/audio/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/lc823450-xgevk/bt/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/lc823450-xgevk/ipl2/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/lc823450-xgevk/nsh/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/lc823450-xgevk/rndis/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/lc823450-xgevk/usb/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/lpcxpresso-lpc54628/netnsh/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/moxa/nsh/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/olimex-stm32-p407/module/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/photon/wlan/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/sabre-6quad/smp/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/sam4cmp-db/nsh/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/sama5d4-ek/elf/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/sama5d4-ek/knsh/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/samv71-xult/module/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/samv71-xult/vnc/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/samv71-xult/vnxwm/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/sim/bluetooth/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/sim/pf_ieee802154/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/sim/pktradio/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/sim/sixlowpan/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/sim/traveler/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/sim/userfs/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/stm32f4discovery/hciuart/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/stm32f4discovery/pseudoterm/defconfig:  Remove CONFIG_EXPERIMENTAL=y
configs/teensy-3.x/usbnsh/defconfig:  Remove CONFIG_EXPERIMENTAL=y
2018-06-17 10:30:01 -06:00
Gregory Nutt
7deb24484c This comment converts the underlying IPC used by the UserFS from Unix domain local sockets to UDP LocalHost loopback sockets. The problem with the local sockets is that they do require operations on the top level psuedo-file system inode tree. That tree must be locked during certain traversals such as enumerate mountpoints or enumerating directory entries.
This conversion is unfortunate in the sense that Unix local domain sockets are relatively lightweight.  LocalHost UDP sockets are much heavier weight since they rely on the full UDP stack.  If anyone is up for a complete redesign, then using some shared memory and a POSIX message queue would be lightweight again.

This commit also fixes several bugs that were not testable before the inode tree deadlock.  I cannot say that the logic is 100% stable but it does not have basic functionality.

Squashed commit of the following:

    fs/userfs:  Order locking so that access to the shared I/O buffer is also locked.
    fs/userfs:  Converts to use LocalHost UDP loopback for IPC.
2017-11-05 12:25:58 -06:00
Gregory Nutt
2dbe7af7f3 fs/userfs: There are some deadlock issues that make the UserFS un-usable at the current time. Added to the TODO list; also feature is now marked EXPERIMENTAL. 2017-11-02 08:46:18 -06:00
Gregory Nutt
21041af8a7 This commit modifies the Unix domain local socket design. Local sockets are built on top of pipes. The Local socket implementation maintained file descriptors to interrupt with the pipes. File descriptors have the bad property that they are valid only while running on the thread within the task that created the local socket.
As a policy, all internal OS implementations must use "detached" files which are valid in any context and do not depend on the validity of a file descriptor at any point in time.  This commit converts the usage of file descriptors to detached files throughout the local socket implementation.

Squashed commit of the following:

    net/local: Finish change to eliminate use of file descriptors.
    net/local:  A little more of the conversion.
    net/local: Beginning of chnages to eliminate use of file descriptors in the local socket implementeation. poll() will be a problem.
2017-11-02 08:23:38 -06:00
Gregory Nutt
e348ea70ff sim/userfs: Add a configuration for testing the UserFS using apps/examples/userfs. 2017-10-31 15:26:58 -06:00