Commit Graph

15 Commits

Author SHA1 Message Date
a8b6f758ba split --prebuilt and --host into --gcc-which and --qemu-which
Only one --host exists at ./build-modules, since that can select the host
kernel, which is independent from the toolchain.

Document that user mode simulation stopped working.
2019-02-16 00:00:00 +00:00
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
ba2976cc7f gem5: fix arm multicore with system.auto_reset_addr = True
baremetal: fix aarch64/no_bootloader/semihost_exit.S which was wrong
because was using unset sp for register block. Tests needed urgently!!
2018-11-26 00:00:00 +00:00
95c1800b0e run: dont break on userland due to missing termout file 2018-11-15 20:07:47 +00:00
d697640584 add more gdb tests 2018-11-09 00:00:02 +00:00
c1f060ca65 test-gdb: find source path correctly
Previously was relying on glob order, and which could pick up the .py
instead of the .c / .S.
2018-11-09 00:00:02 +00:00
e0dbe2416d gdb: create some automated tests with pytest
gem5 baremetal: use m5exit m5op in exit() so as to not force users to
apply a patch for almost all examples
2018-11-09 09:33:44 +00:00
881b63a667 baremetal: fix gdb step debug
Was not finding the image correctly.
2018-11-09 09:33:44 +00:00
8fb9db3931 manually encode newlines on all printed commands
This way we group key value arguments: e.g.:

    make \
    -j 8 \
    all

instead of:

    make \
    -j \
    8 \
    all

and reach CLI nirvana, while also subtly breaking several commands due to
lack of testing.
2018-11-04 00:00:01 +00:00
911dd8be32 remove some more kernel_module- references
make kgdb x86_64 work once again, now pending a decent serial refactor
2018-10-31 23:00:01 +00:00
4f47491482 userland: make uber awesome with --baremetal-like executable resolution 2018-10-30 22:00:02 +00:00
b5b646ffd4 qemu: document GDB user mode, fix some stuff 2018-10-29 22:00:02 +00:00
e267435f6a fix most of GDB and remove most kernel_modules- references 2018-10-29 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