Commit Graph

16 Commits

Author SHA1 Message Date
da900a579c LKMC v3.0
This is a squash commit, the unsquashed development went through many
unstable phases which would break bisects. The unsquashed branch is:
https://github.com/cirosantilli/linux-kernel-module-cheat/tree/v3.0-unsquash

The main improvement of this release was to greatly generalize the testing system.

The key addition was cli_function.py, which allows scripts such as ./run to
be transparently called either from Python or from the command line.

New tests scripts were created using this improved framework: test-baremetal
and test-user-mode.

We were lazy to port some of less important tests to the new setup, TODO's were
added, and we need comes they will be fixed. Getting started is however sacred
as usual and should work.

Other changes include:

-   gem5: update to 7fa4c946386e7207ad5859e8ade0bbfc14000d91

-   run: --tmux-args implies --tmux

-   run: add --userland-args to make userland arguments across QEMU and gem5

    Get rid of --userland-before as a consequence.

-   bring initrd and initramfs back to life

-   build-userland: create --static to make build a bit easier

-   gem5: --gem5-worktree also set --gem5-build-id

-   remove --gem5, use --emulator gem5 everywhere

    Allow passing --emulator multiple times for transparent tests selection
    just like --arch.

-   test-userland: allow selecting just a few tests

-   linux: update to v4.20

-   buildroot: update to 2018.08

    The main motivation for this was to fix the build for Ubuntu 18.10, which
    has glibc 2.28, which broke the 2018.05 build at the m4-host package with:

        #error "Please port gnulib fseeko.c to your platform!

-   getvar --type input

-   failed xen attempt, refactor timer, failed svc attempt, aarch64 use gicv3

-   build-doc: exit 1 on error, add to release testing

-   build: add --apt option to make things easier on other distros

-   build-linux: --no-modules-install
2019-01-22 00:00:00 +00:00
04812521b2 getting started: hide the initial build under ./build
make build awesomer and more generic, convert to python

rename ./configure to ./download-dependencies, since it wasn't configuring
anything
2018-10-14 00:00:00 +00:00
bc73cebff1 Build the Linux kernel independently from Buildroot
This will allow for other types of root filesystems that don't rely on Buildroot
to be added and used in the future.

Propagate --verbose on all build scripts to see full GCC commands.

build-all: allow for neat subsets

also 9p share rootfs_overlay. TODO document.
2018-10-12 09:30:33 +01:00
74b51fc044 gem5: update to 7bfb7f3a43f382eb49853f47b140bfd6caad0fb8
The update is required to include 3c3ca64b5f0dd9eef7b1ce1c65cc6e8e9147dd38
otherwise baremetal does not on VExpress.

baremetal: create a baremetal setup with crosstool-ng

buildroot: improve directory location: move out/dl inside
out/buildroot/download, and add a new out/buildroot/build level

tagline: generalize, deliver more value than howto, since now howtos
are starting to multiply

rename all top scripts to separate words with hyphen more consistently,
e.g. run-gdb instead of rungdb

getvar: list all variables

gem5: make m5out section to focus all releated information at

Prevent m5term Text file busy when rebuilding gem5 while it is running.
2018-09-23 13:56:20 +01:00
938869fd01 some small fixes 2018-09-15 00:01:31 +01:00
56738a1c70 lkmc v2-rc
Unsquashed version at v2-rc-unsquashed, but that cannot be merged as it
breaks bisects at several points. All bugs will not bisect to this
humongous change.

It all started with a conversion of the Bash scripts to Python, mainly
because I couldn't stand not being able to properly use --options for
run which has a million options.

Then since that required a full testing, I decided to do all the
refactorings that I had in mind at once, and so I did and it became
v2-rc.

This is the largest patch I have ever done! OMG a few weeks of extra time.
I'm never writing a Bash script for anything that starts getting big again.

Some of the features are:

* separate build-qemu and build-gem5 commands
* common: convert scripts to python. Add --option for everything
* rename build to build-buildroot now that we are splitting all the build
  commands, Linux kernel to follow
* move all git submodules to submodules/ and all buildroot packages to
  packages/
* refactor the out/ structure. Keep projects on toplevel, because guest
  projects separate archs and host ones don't, making a toplevel arch wrong
* do-release: rename to just release
  https://stackoverflow.com/questions/16174992/cant-get-argparse-to-read-quoted-string-with-dashes-in-it
* run: add --terminal and explain gem5 pdb
* just track the lvimrc
* store CLI kernel config fragment inside buildlroot to avoid conflicts
* gem5: document m5 initparam
* readme: make a bunch of things awesomer
* readme: fix broken refs
* parsec-benchmark: update to 75d55ac446a43c47efb1044844a108c6c330184c
  Could not fetch otherwise.
* gem5: M5_OVERRIDE_PY_SOURCE
2018-09-14 07:42:31 +01:00
f5a997b2b6 do-release: sketch + a bunch of fixes from bench-all
qemu: monitor command from guest
2018-08-09 12:56:17 +01:00
b1bd45684f config: replace cli with direct common_ options 2018-08-09 07:12:20 +01:00
1cb056a995 common: simplify set_common_vars, rename to common_setup
Don't pass all arguments explicitly, just use existing vars.

Prefix all common_setup inputs and outputs with common_ to avoid name conflicts.
2018-08-09 06:59:52 +01:00
d330f8d250 Use absolute paths for . common
Otherwise it can pick up other common in PATH first...
2018-07-22 10:42:46 +01:00
b562d8dfe7 gem5: support variants 2018-06-10 08:57:39 +01:00
ae0701df10 bench-all: get working again
Fix gem5/build wrong path for dd swapfile. Put it under out/ while we are at it
now that we have out of tree builds.

Allow seq_id larger than 7: broke previously because 08 is not valid octal.

Use timeout --foreground to allow killing scons

Don't upload results by default, too insane.
2018-05-31 09:08:45 +01:00
b992163d4e gem5: possible to edit python in tree, factor arm and aarch64 build
readme: stress kills gem5, some gem5 builds much slower than others
2018-05-02 00:14:23 +01:00
f10ef3a467 bench-all: add build benchmarks and make all benchmarks options
run: fix ./run -gu broken behaviour. Document ./tmu window switch failure.

readme: move travis failed attempt to readme.
2018-04-22 21:09:17 +01:00
62f6870e4e bench-all: reactivate forgotten commented out build and bench 2018-04-22 00:36:12 +01:00
5ff3999199 bench-all and linux-kernel-module-cheat-regressoin repo 2018-04-21 22:38:48 +01:00