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9 years agoREADME: provide some more info
Antti Kantee [Tue, 16 Feb 2016 22:59:24 +0000 (22:59 +0000)]
README: provide some more info

Group the bit about rumprun-packages next to language support
examples, and add some quasi-randomly picked examples.

9 years agoInstall rumprunfs_base files to destdir.
Antti Kantee [Tue, 16 Feb 2016 22:48:40 +0000 (22:48 +0000)]
Install rumprunfs_base files to destdir.

9 years agocookfs: warn if image is >1MB.
Antti Kantee [Mon, 15 Feb 2016 12:21:10 +0000 (12:21 +0000)]
cookfs: warn if image is >1MB.

9 years agoGENFS -> COOKFS (they were hiding in allcaps!)
Antti Kantee [Mon, 15 Feb 2016 12:08:06 +0000 (12:08 +0000)]
GENFS -> COOKFS (they were hiding in allcaps!)

9 years agoFix installation of xen private components
Antti Kantee [Thu, 11 Feb 2016 21:43:27 +0000 (21:43 +0000)]
Fix installation of xen private components

9 years agono need to export in platform.conf
Antti Kantee [Thu, 11 Feb 2016 21:10:09 +0000 (21:10 +0000)]
no need to export in platform.conf

9 years agoetc.ffs is dead, long live cookfs
Antti Kantee [Thu, 11 Feb 2016 21:09:02 +0000 (21:09 +0000)]
etc.ffs is dead, long live cookfs

9 years agog/c "doextras", it no longer does anything
Antti Kantee [Thu, 11 Feb 2016 20:39:00 +0000 (20:39 +0000)]
g/c "doextras", it no longer does anything

9 years agoxen: build rumpxen{dev,if} from Makefile, not build-rr
Antti Kantee [Thu, 11 Feb 2016 20:35:00 +0000 (20:35 +0000)]
xen: build rumpxen{dev,if} from Makefile, not build-rr

Makes the platforms consistent.

9 years agoxen Makefiles: g/c flags set elsewhere
Antti Kantee [Thu, 11 Feb 2016 20:05:35 +0000 (20:05 +0000)]
xen Makefiles: g/c flags set elsewhere

9 years agoPut some common CFLAGS/CPPFLAGS into Makefile.inc
Antti Kantee [Thu, 11 Feb 2016 20:04:55 +0000 (20:04 +0000)]
Put some common CFLAGS/CPPFLAGS into Makefile.inc

9 years agomakefile: g/c leftover variable
Antti Kantee [Thu, 11 Feb 2016 19:48:03 +0000 (19:48 +0000)]
makefile: g/c leftover variable

9 years agoclean clean targets in Makefiles
Antti Kantee [Thu, 11 Feb 2016 19:43:41 +0000 (19:43 +0000)]
clean clean targets in Makefiles

9 years agoInclude vioscsi in hw_generic bake conf.
Antti Kantee [Wed, 10 Feb 2016 13:46:26 +0000 (13:46 +0000)]
Include vioscsi in hw_generic bake conf.

9 years agorumprun-bake: add -m command line parameter
Antti Kantee [Tue, 9 Feb 2016 13:59:05 +0000 (13:59 +0000)]
rumprun-bake: add -m command line parameter

Anything passed with -m gets processed as a config directive
for the config that the command is operating on.

9 years agorumprun-bake: move to a block-based config format
Antti Kantee [Tue, 9 Feb 2016 13:24:37 +0000 (13:24 +0000)]
rumprun-bake: move to a block-based config format

9 years agoTravis: group tests according to estimated duration
Antti Kantee [Wed, 10 Feb 2016 18:36:54 +0000 (18:36 +0000)]
Travis: group tests according to estimated duration

Attempt to optimize overall throughput that way.  The principle
of why ordering thusly helps rests of the solid foundation of
wishful thinking (and observation on how travis usually schedules
the various build jobs).

9 years agoFinish genfs -> cookfs rename.
Antti Kantee [Wed, 10 Feb 2016 18:15:21 +0000 (18:15 +0000)]
Finish genfs -> cookfs rename.

Call the runtime counterpart, which prepares the cooked fs
for consumption, "platefs".

9 years agocookfs: handle files/paths with spaces
Antti Kantee [Wed, 10 Feb 2016 17:57:37 +0000 (17:57 +0000)]
cookfs: handle files/paths with spaces

9 years agorumprunfs_base: put everything in a "rootfs" directory
Antti Kantee [Wed, 10 Feb 2016 15:43:45 +0000 (15:43 +0000)]
rumprunfs_base: put everything in a "rootfs" directory

Move is done mostly for the purposes of testing that the -s
parameter works.

9 years agorename genfs to cookfs
Antti Kantee [Wed, 10 Feb 2016 15:40:34 +0000 (15:40 +0000)]
rename genfs to cookfs

9 years agogenfs: deal with files with quotation marks in the name
Antti Kantee [Wed, 10 Feb 2016 15:39:59 +0000 (15:39 +0000)]
genfs: deal with files with quotation marks in the name

9 years agogenfs: add -s, strips n leading path components
Antti Kantee [Wed, 10 Feb 2016 15:38:03 +0000 (15:38 +0000)]
genfs: add -s, strips n leading path components

9 years agorumprun-bake: use libexec/readelf -- it's always available
Antti Kantee [Wed, 10 Feb 2016 13:38:07 +0000 (13:38 +0000)]
rumprun-bake: use libexec/readelf -- it's always available

Saves from having to set $READELF if host readelf is not
called "readelf".

9 years agoIn case of sysproxy, print listening address.
Antti Kantee [Tue, 9 Feb 2016 14:36:26 +0000 (14:36 +0000)]
In case of sysproxy, print listening address.

9 years agogenfs: make symbols private
Antti Kantee [Tue, 9 Feb 2016 14:29:38 +0000 (14:29 +0000)]
genfs: make symbols private

Fixes baking multiple genfs'd objects.  (or, actually, any
user-supplied ones since etc comes by default)

9 years agogenfs: don't track data objects dynamically
Antti Kantee [Mon, 8 Feb 2016 17:16:00 +0000 (17:16 +0000)]
genfs: don't track data objects dynamically

We already know what they'll be and can glob for them.

9 years agogenfs: pass data files to gcc via symbolic link
Antti Kantee [Mon, 8 Feb 2016 14:22:51 +0000 (14:22 +0000)]
genfs: pass data files to gcc via symbolic link

The filenames are interpreted by gcc, both in if gcc should
compile the files (which we don't want it, since they're data)
and also as how to transform the filename to the symbol name.
Using a known-good filename (the symlink) takes care of both issues.

problems were reported by @davedoesdev

9 years agoPull in new buildrump.sh
Antti Kantee [Mon, 8 Feb 2016 13:51:44 +0000 (13:51 +0000)]
Pull in new buildrump.sh

Fixes things against nbsrc HEAD.

9 years agobuild-rr: make ld 2.22 the minimum
Antti Kantee [Mon, 8 Feb 2016 12:59:12 +0000 (12:59 +0000)]
build-rr: make ld 2.22 the minimum

Fixes Travis builds (hopefully ...)

9 years agobuild-rr: the stetson-harrison ld version in previous was wrong.
Antti Kantee [Mon, 8 Feb 2016 12:55:56 +0000 (12:55 +0000)]
build-rr: the stetson-harrison ld version in previous was wrong.

Apparently Travis sports an older version.  Print it so that
I can fix the check.

9 years agobuild-rr: check cc/ld versions
Antti Kantee [Mon, 8 Feb 2016 12:40:57 +0000 (12:40 +0000)]
build-rr: check cc/ld versions

Issue a warning or error for old or prehistoric tools,
respectively.

XXX: not sure how the ld check will work with GNU gold.
We'll see.

Issue reported by a number of users recently, including
in issue #69.

9 years agotest that passwd entry for "root" is available
Antti Kantee [Thu, 4 Feb 2016 01:35:11 +0000 (01:35 +0000)]
test that passwd entry for "root" is available

9 years agoInclude rumprunfs_base in the _foundation set.
Antti Kantee [Thu, 4 Feb 2016 01:29:57 +0000 (01:29 +0000)]
Include rumprunfs_base in the _foundation set.

9 years agoAdd a librumprunfs_base component.
Antti Kantee [Thu, 4 Feb 2016 01:28:43 +0000 (01:28 +0000)]
Add a librumprunfs_base component.

It is built by genfs and contains the /etc files required by
most Rumprun unikernels.

9 years agogenfs: CFLAGS/CPPFLAGS should reflect BUILDRUMP_TOOLS.
Antti Kantee [Thu, 4 Feb 2016 01:21:24 +0000 (01:21 +0000)]
genfs: CFLAGS/CPPFLAGS should reflect BUILDRUMP_TOOLS.

Therefore, they need to hardcoded instead of env-overridable.

9 years agogenfs tool: remember to use CFLAGS
Antti Kantee [Thu, 4 Feb 2016 01:09:40 +0000 (01:09 +0000)]
genfs tool: remember to use CFLAGS

9 years agobuild app-tools earlier
Antti Kantee [Thu, 4 Feb 2016 01:09:21 +0000 (01:09 +0000)]
build app-tools earlier

9 years agoCreate app-tools as executable in objdir.
Antti Kantee [Thu, 4 Feb 2016 00:38:08 +0000 (00:38 +0000)]
Create app-tools as executable in objdir.

That way they can be judiciously executed from there during
a build.

9 years agoAdd genfs.
Antti Kantee [Wed, 3 Feb 2016 23:57:52 +0000 (23:57 +0000)]
Add genfs.

genfs is a tool for turning directory hierarchies into an
object file.  When the object file in question is baked into
a Rumprun unikernel image, the files from the hierarchies are
(magically) available in the booted unikernel.

9 years agoAdd rumprun_genfs()
Antti Kantee [Wed, 3 Feb 2016 23:48:24 +0000 (23:48 +0000)]
Add rumprun_genfs()

It attaches rumpfs external storage to the given pathnames with
the given memory area.

9 years agoRe-pull src-netbsd.
Antti Kantee [Tue, 2 Feb 2016 14:08:39 +0000 (14:08 +0000)]
Re-pull src-netbsd.

Fixes snafu in previous, one which wasn't yet apparent but
would have been apparent soon.

9 years agoupdate src-netbsd, also contains new openssl
Antti Kantee [Tue, 2 Feb 2016 13:08:46 +0000 (13:08 +0000)]
update src-netbsd, also contains new openssl

9 years agoAlso add $RUMPRUN_CC to config.
Antti Kantee [Thu, 28 Jan 2016 13:32:44 +0000 (13:32 +0000)]
Also add $RUMPRUN_CC to config.

A build-specific cc is needed because cc includes the lib path
in the binary for baking.  After this change it's possible to use
config variables alone to build at least a simple unikernel for
testing (i.e. setting PATH to match the build dest is not required).

XXX: value is hardcoded to gcc, but that's not a practical problem as
long as support only gcc.

9 years agoAdd RUMPSTOP to config too, so that tests find it.
Antti Kantee [Wed, 27 Jan 2016 21:35:18 +0000 (21:35 +0000)]
Add RUMPSTOP to config too, so that tests find it.

9 years agoInclude git branch in default obj/destdir names.
Antti Kantee [Wed, 27 Jan 2016 16:38:27 +0000 (16:38 +0000)]
Include git branch in default obj/destdir names.

If we're not in a git repo, on master, or detached => nothing.

9 years agoTry to fix travis
Antti Kantee [Wed, 27 Jan 2016 15:36:08 +0000 (15:36 +0000)]
Try to fix travis

Not sure if the travis "shell" supports ".", so might have
make a script to source the config.  We'll see.

9 years agoUse $RUMPRUN/$RUMPRUN_BAKE in tests
Antti Kantee [Wed, 27 Jan 2016 15:16:01 +0000 (15:16 +0000)]
Use $RUMPRUN/$RUMPRUN_BAKE in tests

9 years agoAdd RUMPRUN_BAKE and RUMPRUN to config.
Antti Kantee [Wed, 27 Jan 2016 15:09:53 +0000 (15:09 +0000)]
Add RUMPRUN_BAKE and RUMPRUN to config.

That way you don't have to twiddle with paths if you want to
build to an alternate tree while doing development.
(config is only for developers anyway)

9 years agoRun the xen probe in a subshell.
Antti Kantee [Tue, 26 Jan 2016 20:51:47 +0000 (20:51 +0000)]
Run the xen probe in a subshell.

Might fix Travis build failure.  Who knows.  Hard to say for
sure about the problems which I can't repeat locally.

9 years agoProbe location of Xen headers.
Antti Kantee [Tue, 26 Jan 2016 18:25:08 +0000 (18:25 +0000)]
Probe location of Xen headers.

Throw an intelligent error if they're not found.

XXX: would be nice to have a mechanism for providing a manual
override, but that sort of parameter passing needs a general
solution.

related to #67 (which can now be closed)

9 years agoRecent NetBSD needs _KERNTYPES to expose register_t.
Antti Kantee [Mon, 25 Jan 2016 00:13:48 +0000 (00:13 +0000)]
Recent NetBSD needs _KERNTYPES to expose register_t.

9 years agoupdate buildrump.sh for NetBSD 7.99.26 support
Antti Kantee [Sun, 24 Jan 2016 23:32:41 +0000 (23:32 +0000)]
update buildrump.sh for NetBSD 7.99.26 support

9 years agoupdate src-netbsd
Antti Kantee [Mon, 18 Jan 2016 16:59:05 +0000 (16:59 +0000)]
update src-netbsd

ext2fs kernel panic fix

9 years agoMerge pull request #66 from deferpanic/master
Antti Kantee [Wed, 13 Jan 2016 23:22:14 +0000 (23:22 +0000)]
Merge pull request #66 from deferpanic/master

adding raw as qemu image format explicitly

9 years agoadding authors
ian eyberg [Wed, 13 Jan 2016 14:21:59 +0000 (06:21 -0800)]
adding authors

9 years agoadding raw
ian eyberg [Wed, 13 Jan 2016 12:49:17 +0000 (04:49 -0800)]
adding raw

9 years agoremember to add rumpkern_mman to the config too
Antti Kantee [Tue, 12 Jan 2016 17:37:30 +0000 (17:37 +0000)]
remember to add rumpkern_mman to the config too

9 years agoMove mmap emulation into the kernel.
Antti Kantee [Tue, 12 Jan 2016 16:54:36 +0000 (16:54 +0000)]
Move mmap emulation into the kernel.

That way systems which want to use kernel-only mode can
use the mmap emulation.

part of deferpanic/gorump#18

9 years agoAdd travis test for cxx-less mode.
Antti Kantee [Wed, 30 Dec 2015 17:23:19 +0000 (17:23 +0000)]
Add travis test for cxx-less mode.

9 years agoBuild libunwind only with CONFIG_CXX=yes
Antti Kantee [Wed, 30 Dec 2015 17:20:31 +0000 (17:20 +0000)]
Build libunwind only with CONFIG_CXX=yes

libunwind contains C++ sources, so it's not possible to build
it without a C++ compiler.

9 years agoapp-tools: respect CONFIG_CXX
Antti Kantee [Wed, 30 Dec 2015 17:16:20 +0000 (17:16 +0000)]
app-tools: respect CONFIG_CXX

9 years agopull in new buildrump.sh
Antti Kantee [Wed, 30 Dec 2015 14:44:03 +0000 (14:44 +0000)]
pull in new buildrump.sh

9 years agox86: keep state for both PICs
Antti Kantee [Sun, 27 Dec 2015 16:12:03 +0000 (16:12 +0000)]
x86: keep state for both PICs

9 years agoAllow NULL putc in bmk_printf_init()
Antti Kantee [Sun, 27 Dec 2015 16:00:21 +0000 (16:00 +0000)]
Allow NULL putc in bmk_printf_init()

9 years agoREADME: List examples of working application languages.
Antti Kantee [Sat, 12 Dec 2015 14:33:08 +0000 (14:33 +0000)]
README: List examples of working application languages.

9 years agosprinkle more debug prints to mmap
Antti Kantee [Thu, 10 Dec 2015 15:56:04 +0000 (15:56 +0000)]
sprinkle more debug prints to mmap

9 years agoAdd .lbss to ldscript
Antti Kantee [Thu, 10 Dec 2015 01:18:50 +0000 (01:18 +0000)]
Add .lbss to ldscript

Ensures that .lbss stuff stays before _end, which in turn
makes memory allocation work a lot better.

Should add ldata and lrodata too, but I'm hating these
copypasteware ldscripts, so need to fix the ldscript
infra first.

9 years agoexpose rump_syscall() to applications
Antti Kantee [Wed, 9 Dec 2015 18:43:10 +0000 (18:43 +0000)]
expose rump_syscall() to applications

9 years agopull in new src-netbsd
Antti Kantee [Mon, 7 Dec 2015 21:00:00 +0000 (21:00 +0000)]
pull in new src-netbsd

openssl 1.0.1q (vulnerabilities)

9 years agofix amd64 fattrap to correctly account for error codes
Antti Kantee [Thu, 3 Dec 2015 20:10:44 +0000 (20:10 +0000)]
fix amd64 fattrap to correctly account for error codes

9 years agoconfig.md: Continuing work on configuration spec
Martin Lucina [Tue, 1 Dec 2015 15:18:37 +0000 (16:18 +0100)]
config.md: Continuing work on configuration spec

Now mostly documents the current implementation

9 years agorumprun: use sysctl() to disable DAD
Antti Kantee [Mon, 30 Nov 2015 23:21:47 +0000 (23:21 +0000)]
rumprun: use sysctl() to disable DAD

It's possible since there's a new src-netbsd in town (has
been for some time now).

9 years agoconfig: Formatting fixes
Martin Lucina [Mon, 30 Nov 2015 15:15:07 +0000 (16:15 +0100)]
config: Formatting fixes

9 years agoFirst cut of rumprun unikernel configuration specification
Martin Lucina [Mon, 30 Nov 2015 15:12:19 +0000 (16:12 +0100)]
First cut of rumprun unikernel configuration specification

This is mostly extracted from current librumprun_base/config.c and
app-tools/rumprun source. Work in progress.

9 years agohw/x86: Load configuration from multiboot module if found
Martin Lucina [Mon, 30 Nov 2015 13:33:58 +0000 (14:33 +0100)]
hw/x86: Load configuration from multiboot module if found

9 years agorumpbake_main<n> -> rumprun_main<n>
Antti Kantee [Sun, 29 Nov 2015 18:55:00 +0000 (18:55 +0000)]
rumpbake_main<n> -> rumprun_main<n>

Avoids the problematic term "rumpbake", and the
function name is more a property of rumprun anyway.

9 years agoRestore old argv behaviour which was lost with rc_TESTING.
Antti Kantee [Wed, 25 Nov 2015 22:02:59 +0000 (22:02 +0000)]
Restore old argv behaviour which was lost with rc_TESTING.

The first argv deriving from cmdline will be used for all
remaining executables.  Sucky semantics, but while we're in
limbo, we're in limbo, and not much sense can be made here.

9 years agominios: don't rely on specific page table allocation scheme
Wei Liu [Mon, 23 Nov 2015 13:05:08 +0000 (13:05 +0000)]
minios: don't rely on specific page table allocation scheme

Today mini-os is making assumptions how the page tables it is started
with are being allocated. Especially it is using the number of page
table frames to calculate which is the first unmapped pfn.

Instead of relying on page table number assumptions just look into the
page tables to find the first pfn not already mapped.

Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
master commit: 8d84345a20d8a46ea26379c9f19961f6aa3e6e83
master date: Fri Nov 20 19:32:42 2015 +0100
[ wei: port to rumprun ]
Signed-off-by: Wei Liu <liuw@liuw.name>
9 years agorumprun: fix grub-mkrescue argument order
Antti Kantee [Tue, 17 Nov 2015 11:44:53 +0000 (11:44 +0000)]
rumprun: fix grub-mkrescue argument order

Now matches man page.  Fixes issue #62.

9 years agopgalloc_align: make page size min alignment
Antti Kantee [Tue, 17 Nov 2015 11:40:33 +0000 (11:40 +0000)]
pgalloc_align: make page size min alignment

Fix callers and tighten assert.

9 years agoadd more kludges to deal with test build mess
Antti Kantee [Tue, 17 Nov 2015 01:44:54 +0000 (01:44 +0000)]
add more kludges to deal with test build mess

9 years agoUpdate src-netbsd and buildrump.sh.
Antti Kantee [Tue, 17 Nov 2015 01:20:38 +0000 (01:20 +0000)]
Update src-netbsd and buildrump.sh.

Fixes snafu in previous update of these submodules.

9 years agobuildtests.sh: don't set variables which are already set
Antti Kantee [Tue, 17 Nov 2015 00:47:45 +0000 (00:47 +0000)]
buildtests.sh: don't set variables which are already set

9 years agopull in latest src-netbsd and buildrump.sh
Antti Kantee [Tue, 17 Nov 2015 00:47:13 +0000 (00:47 +0000)]
pull in latest src-netbsd and buildrump.sh

9 years agoFix test build by making sure CC/CXX doesn't get overriden.
Antti Kantee [Mon, 16 Nov 2015 16:36:34 +0000 (16:36 +0000)]
Fix test build by making sure CC/CXX doesn't get overriden.

XXX: maybe the vars for the backend buildrump.sh tools in
config (e.g. CC) should have smarter names.

9 years agorumprun-bake: make -c conf-without-path work
Antti Kantee [Mon, 16 Nov 2015 15:13:21 +0000 (15:13 +0000)]
rumprun-bake: make -c conf-without-path work

9 years agorumprun-bake usage: all commands optionally take -c conffile
Antti Kantee [Mon, 16 Nov 2015 13:08:18 +0000 (13:08 +0000)]
rumprun-bake usage: all commands optionally take -c conffile

9 years agotests: include $RUMPRUN_MKCONF
Antti Kantee [Mon, 16 Nov 2015 12:18:15 +0000 (12:18 +0000)]
tests: include $RUMPRUN_MKCONF

"make clean" will now nuke hellopp.bin, where pertinent

9 years agorumprun-bake: check that "describe" is invoked with proper args
Antti Kantee [Sun, 15 Nov 2015 14:21:10 +0000 (14:21 +0000)]
rumprun-bake: check that "describe" is invoked with proper args

9 years agorumprun-bake: dumpconfig -> describe
Antti Kantee [Sun, 15 Nov 2015 14:07:54 +0000 (14:07 +0000)]
rumprun-bake: dumpconfig -> describe

New name seems, subjectively speaking, more professional.

9 years agorumprun-bake: improve usage
Antti Kantee [Sun, 15 Nov 2015 14:07:15 +0000 (14:07 +0000)]
rumprun-bake: improve usage

* add dumpconfig
* print synopsis and descriptions in the same order

9 years agorumprun-bake: give user a better chance to see compat warning
Antti Kantee [Sun, 15 Nov 2015 13:56:55 +0000 (13:56 +0000)]
rumprun-bake: give user a better chance to see compat warning

9 years agorumprun-bake: _uniq only just-in-time
Antti Kantee [Sat, 14 Nov 2015 20:27:07 +0000 (20:27 +0000)]
rumprun-bake: _uniq only just-in-time

It's not *that* difficult, and it's way faster.

9 years agorumprun-bake: fix _uniq param to make previous commit actually work
Antti Kantee [Sat, 14 Nov 2015 19:22:33 +0000 (19:22 +0000)]
rumprun-bake: fix _uniq param to make previous commit actually work

The numbers from the previous commit are less impressive now.
But we're still ahead of the 100ms human-lag-detection zone.

9 years agorumprun-bake: _uniq each config only in its final state
Antti Kantee [Sat, 14 Nov 2015 18:36:17 +0000 (18:36 +0000)]
rumprun-bake: _uniq each config only in its final state

Hugely speeds up config processing: makes "rumprun-bake list" go
from 150ms to 40ms on my machine and, most importantly, removes
human-observable sluggishness.

9 years agorumprun-bake: add "dumpconfig" to command line syntax
Antti Kantee [Sat, 14 Nov 2015 17:52:52 +0000 (17:52 +0000)]
rumprun-bake: add "dumpconfig" to command line syntax

9 years agoAssign ${.PARSEDIR} directly instead of cd + pwd.
Antti Kantee [Sat, 14 Nov 2015 13:32:08 +0000 (13:32 +0000)]
Assign ${.PARSEDIR} directly instead of cd + pwd.

Fixes issue #60

9 years agobuild-rr: abspath PLATFORMDIR
Antti Kantee [Sat, 14 Nov 2015 13:31:42 +0000 (13:31 +0000)]
build-rr: abspath PLATFORMDIR

9 years agorumprun-bake: fix grammar in usage and reword slightly
Antti Kantee [Fri, 13 Nov 2015 14:44:08 +0000 (14:44 +0000)]
rumprun-bake: fix grammar in usage and reword slightly