Notes on Path Pilot 1.8.2 source code

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10 years 11 months ago #65848 by jepler
Notes on Path Pilot 1.8.2 source code was created by jepler
Executive Summary

Someone who used the written offer for the GPL source code from Tormach was kind enough to redistribute the tarball to me.

I compressed (xz) the archive and made it available at emergent.unpythonic.net/files/pathpilot_..._source-1.8.2.tar.xz

Path Pilot (version 1.8.2) is a fork of a prerelease of LinuxCNC 2.6.0 with significant back-ports (e.g., the planner that is new in LinuxCNC 2.7.x) changes not incorporated into LinuxCNC (e.g., inifile settings for default tolerances, single-stepping changes, a default preview plot size limit in AXIS/gremlin, remap changes, and other changes I don't grok at first glance), and some things that are worrying (removing the path whitelist checking of module_helper).

Organization seems to have linuxcnc/ as one subdirectory, and other stuff in sibling directories. A script implies that git submodules are probably in play.

It also includes significant non-linuxcnc portions, e.g., in depends:
Code:
check_operatorsudo mesaflash numlockx shifttest time-admin-wrapper truetype-tracer

In lib/ are files including a modified binary copy of libgtk "with FileChooser restricted to ~/gcode." (quoted text plus patch in lib/gtklibpatch.txt)

As yet, I have not investigated whether the source files build and work for me.

File details

File size 223774720 (214MB) latest dated files are 2015-07-21 14:01

Cryptographic checksums:
Code:
md5sum c7917534468b02fa609ccabc03dccc12 pathpilot_source-1.8.2.tar.xz 838c36835746e8b3c5a00c9c99c2649b pathpilot_source.tar sha1sum 47c9b81c3f588a11c14d24363492e09806a5bf9c pathpilot_source-1.8.2.tar.xz e51a14be8a3c8c9952668bde7294b9221cecc200 pathpilot_source.tar

Rambling narrative

this archive also contains a large number of object files such as ./linuxcnc/src/xor2.ko that are created by a linuxcnc build process.

Organization seems to have linuxcnc/ as one subdirectory, and other stuff in sibling directories.

this archive also contains a large number of object files such as ./linuxcnc/src/xor2.ko that are created by a linuxcnc build process. Organization seems to have linuxcnc/ as one subdirectory, and other stuff in sibling directories.

this archive also contains a large number of object files such as ./linuxcnc/src/xor2.ko that are created by a linuxcnc build process.

version.txt says "v1.8.2". This version numbering is unrelated to LinuxCNC's. linuxcnc/version.txt says "2.6.0~pre". linuxcnc/debian/changelog's latest entries pertain to the 2.5.3 release

At a first glance, this means that the forking point of pathpilot is between these two revisions:
Code:
ce9835a Release 2.5.3 (July 23, 2013) 3f5e5a5 2.6.0~pre1 changelog (April 7, 2014)

so I went prospecting with the help of a shell alias
Code:
$ f () { git rev-list --first-parent $range -- $1 | while read rev; do git log -1 --abbrev-commit --format="%H %aD %s" $rev ; git diff --shortstat --exit-code $rev -- $1 && echo MATCH; echo; done | less; } $ range=ce9835a..3f5e5a5 f src/hal/drivers/mesa-hostmot2/encoder.c 81876a9c1563246b0e19f7230a3577bdcc6cc227 Mon, 7 Apr 2014 01:35:55 +0200 hm2: muxed encoder: add support for FilterRate and Muxed Skew register. 1 file changed, 15 insertions(+), 77 deletions(-) 3923028b51b8ca2b4e7e2ae80b0896302e64ac56 Mon, 7 Apr 2014 01:33:00 +0200 hm2: add support for muxed encoder version 4 1 file changed, 1 insertion(+), 3 deletions(-) 7c112e5b77f0adb6094207645ef31bb49b4d1a1b Sun, 23 Feb 2014 17:57:00 +0100 Merge branch 'master' of ssh://norbert@git.linuxcnc.org/git/linuxcnc.git MATCH 91efbf5fe8da8e1d5c023c45a94a3303cf29c27f Thu, 15 Aug 2013 21:46:18 +0100 Merge remote branch 'origin/master' into hm2-resolver-fix-for-master 1 file changed, 24 insertions(+), 5 deletions(-)

Diffing against linuxcnc at this ref (7c112e5b) starts to produce results both mundane
Code:
diff --git a/src/emc/ini/initool.cc b/src/emc/ini/initool.cc index 29d8c27..4d5d1e4 100644 --- a/src/emc/ini/initool.cc +++ b/src/emc/ini/initool.cc @@ -42,6 +42,20 @@ static int loadTool(IniFile *toolInifile) const char *inistring; if (NULL != (inistring = toolInifile->Find("TOOL_TABLE", "EMCIO"))) { + // see if filename starts with '~' + if (inistring[0] == '~') { + // get user's HOME directory from environment + char *home; + char full_path[LINELEN]; + if ((home = getenv("HOME")) != NULL) { + // start with the path to the HOME directory + strcpy(full_path, home); + // skip the '~' + strcat(full_path, &inistring[1]); + inistring = full_path; + } + } + if (0 != emcToolSetToolTableFile(inistring)) { rcs_print("bad return value from emcToolSetToolTableFile\n"); retval = -1;
and interesting
Code:
diff --git a/src/emc/motion/command.c b/src/emc/motion/command.c index ada126d..6307a38 100644 --- a/src/emc/motion/command.c +++ b/src/emc/motion/command.c @@ -81,6 +83,52 @@ extern void check_stuff(const char *msg); KINEMATICS_FORWARD_FLAGS fflags = 0; KINEMATICS_INVERSE_FLAGS iflags = 0; + +/** + * Helper function to execute a single step command. + * This sets the appropriate flags so that the trajectory planner runs just the + * next segment. + */ +STATIC int do_step_cmd(struct state_tag_t const * const tag) { + + if(!emcmotStatus->paused) { + reportError(_("MOTION: can't STEP while already executing")); + return -1; + } + + if (!tag) { + reportError(_("MOTION: invalid ID trying to do a STEP")); + return -1; + } + + emcmotDebug->idForStep = tag->fields[GM_FIELD_STEPPING_ID]; + rtapi_print_msg(RTAPI_MSG_DBG," idForStep = %d, line = %d\n", + emcmotDebug->idForStep, + tag->fields[GM_FIELD_LINE_NUMBER]); + emcmotDebug->stepping = 1; + tpResume(&emcmotDebug->tp); + emcmotStatus->paused = 1; + return 0; +} + +/** + * Check if a move has been added to an empty queue, and trigger a step command + * if necessary. + * This assumes that single-stepping is done in task, and so receiving a new + * motion command on an empty queue while stepping will only happen when a step + * command is issued to task. + */ +STATIC int do_firstmove_step(struct state_tag_t const * const tag) { + + if(!emcmotStatus->paused || emcmotStatus->depth > 0) { + return -1; + } + + do_step_cmd(tag); + return 0; +} + + /* loops through the active joints and checks if any are not homed */ int checkAllHomed(void) { int joint_num;

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10 years 10 months ago #67311 by tkamsker
Replied by tkamsker on topic Notes on Path Pilot 1.8.2 source code
Hi Question
iĺl try to have a look what are they doing so thank you for that tarball
But did you get it to compile ?
Happy christmas
thomas

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10 years 5 months ago #74388 by smgvbest
Replied by smgvbest on topic Notes on Path Pilot 1.8.2 source code
Hi

I've been working on compiling PathPilot from the sources and have a few notes
My build environment is based on "ubuntu-10.04-linuxcnc3-i386.iso" running in a VM
First.
create the ID operator and use it. it seems to have less problems when you do
I created ~/pathpilot_source and put the tar there

Here is a list of make options you can use
Tormach highly editing the basic LinuxCNC Makefile
Code:
install-dep # Install system-wide dependencies needed to run linuxcnc and GUI lathe-tarball # Create encrypted tarball for CNC lathe with mill references removed tarball # Create encrypted tarball for mill and lathe used to create updates posted on website all-tarball # Create encrypted tarball including everything even unreleased projects list-tgp # Check tarball by extracting to a local folder run # Launch the GUI with the configuration stored in $(MACHINE_CONFIG) or launch config picker if this file does not exist build # Compile all objects install # Build and install all files to the run directory git-commands # Install symlinks for git scripts to $(GIT_SYMLINK_DIR) git-hooks # Setup git hooks by symlinking hook scripts into .git/hooks clean-git-hooks # Clean installed git hooks by unlinking them in .git/hooks first # Run this command on a fresh clone to do all the setup steps default # Automatically configure linuxcnc and dependencies and build configure-sim # Explicitly configure linuxcnc for local simulation build depends # Compile and install dependencies purge-packages # Purge packages not needed on the machine controller linuxcnc-modules # Build linuxcnc and all kernel modules python # Copy over all tormach python files to the appropriate folder structure in run. build-clean # Remove all files in the run folder clean # Recursively clean compiled objects and libraries distclean # Recursively clean all generated files (the nuclear option) strip # Search for all compiled objects and strip out debugging symbols resources # Copy resource files needed for GUI to $HOME/tmc

To get a working build environment after expanding the source tarball run
make install-dep
make
make install
make python # note sure if these two are really needed or not yet
make resources
make run # this setsup and runs pathpilot for first time. it will run with a 5i25 config file

it may take less that that but that is what I had to do to get it to work
the install-dep takes some time to complete, about 500+MB download

some basic notes

it was missing toplevel.py after make run

# note source does not include final images for pathpilot (tormach may consider these pro proprietary)
# quick fix, install v1.8.2.tgp from tormach download and put into update folder.
# note a diff of 1.8.2 installed from source and 1.8.2 from tgp have differences

I commented out the section of code in operator_login with $SHUTDOWN_CONTROLER in my sources folder to prevent ti from overwriting my change this way it never shutdown after an update

Manually Configure file with
echo `pwd`~/tmc/configs/tormach_lathe/tormach_lathe_5i25.ini > ~/config_file.txt

To Manually extract a *.tgp file
*.tgp # updates files are gpg password protect with moravianvalley
gpg --yes --no-use-agent --symmetric --output ~/v1.8.2.tgz --passphrase=moravianvalley v1.8.2.tgp

to get it fully working I have to apply the v1.8.2 update then all worked fine (graphics mostly)
it is a case of missing files the makefile is not completing from what I can tell.

All the python code is there to edit the interface including the *.ui or *.glade files.
if you want to play with these launch the software update and In the search box type in glade and look for GTK+ 2 User Interface Builder and install. I've also install eclipse C/C++ to work on source files.

That's all for now.
but wanted to show what's been going on

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10 years 5 months ago #74395 by cncbasher
Replied by cncbasher on topic Notes on Path Pilot 1.8.2 source code
the only differences i am aware of are indeed the graphics , tormach have copyrighted them , the version of graphics given in the source cd are more of a hand drawn variant as against the installed version .
i am not aware of any other differences , so if you find any , i would appricate a call , so it can be further investigated
i would be interested to know of Missing files ,

adding the pathpilot sources to the iso , will require the linuxcnc pre-requsites being installed , as if your building linuxcnc on it's own
it's easier to get linuxcnc build 2.6.3 source to build first , and then add the requirements for pathpilot.

toplevel.py is a python script for using remap from the linuxcnc sources , this is called from your ini script .

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10 years 5 months ago #74535 by smgvbest
Replied by smgvbest on topic Notes on Path Pilot 1.8.2 source code
Hi

I'm going to repeat what I did and be sure I didn't introduce anything else accidentally before I post any differences.

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