Commit graph

32 commits

Author SHA1 Message Date
sinavir
c9bacf6678 phram: fix writebuffersize 2024-03-03 12:16:58 +01:00
Raito Bezarius
dde8386f75 builders/uimage: support aligning the FIT
This is necessary when writing to a MTD partition with a certain erasesize.
2024-02-18 20:30:41 +01:00
Raito Bezarius
0a8343be66 pkgs/kernel/uimage: introduce commandLineDtbNode
Certain devices like the Zyxel NWA50AX will pass information on the command-line
to explain what is the current image (`bootImage=1` vs. `bootImage=0`).

Unfortunately, if we set the `chosen/bootargs` node, this will be overridden forcibly
by U-Boot.

To avoid this problem, it's easier to simply just use another DTB node like `bootargs-override` which
is what OpenWRT does [1].

[1]: https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=target/linux/ramips/patches-5.15/314-MIPS-add-bootargs-override-property.patch;h=e7dca7af886e8c0b69ba2b23f5855ddfeeb0d4a1;hb=refs/heads/main

Signed-off-by: Raito Bezarius <masterancpp@gmail.com>
2024-02-18 20:30:41 +01:00
Daniel Barlow
b9c0d93670 build modules at same time as main kernel vmlinux
This changes the practice for building kernel modules: now we expect
that the appropriate Kconfig symbols are set to =m in
config.kernel.config, and then use pkgs.kmodloader to create
a service that loads and unloads all the modules depended on by
a particular requirement.

Note that modules won't be installed on the target device just by
virue of having been built: only the modules that are referenced by a
kmodloader package will be in the closure.

An example may make this clearer: see modules/firewall/default.nix
in this commit.

Why?

If you have a compiled Linux kernel source tree and you change some
symbol from "is not set" to m and then run make modules, you cannot in
general expect that newly compiled module to work. This is because
there are places in the build of the main kernel where it looks to see
which modules _may_ be defined and uses that information to
accommodate them.

For example in an in-kernel build of

  https://github.com/torvalds/linux/blob/master/net/netfilter/core.c#L689

some symbols are defined only if CONFIG_NF_CONNTRACK is set, meaning
this code won't work if we have it unset initially then try later to
enable it and build modules only. Or see

  https://github.com/torvalds/linux/blob/master/include/linux/netdevice.h#L160
2024-02-11 23:47:11 +00:00
Daniel Barlow
812f497660 add kernel.version param to allow for version-specific patches
default to 5.15.137 to avoid breaking the devices that don't declare it
2024-02-11 16:19:52 +00:00
Daniel Barlow
ff991508ae build kernel only once for multiple outputs
e.g. vmlinux + zImage
2024-01-02 19:40:57 +00:00
Daniel Barlow
4a606a4b19 tidy up kernel patch 2023-12-21 21:12:55 +00:00
Daniel Barlow
9c894bdabf add tftpboot test for mips 2023-12-21 19:25:45 +00:00
Daniel Barlow
03b17fa3ed add zImage output 2023-12-07 22:31:26 +00:00
Raito Bezarius
644f42c35e kernel: make the build FSAT on FSAT computers
I have 128 threads, builds should take only but a moment!
2023-12-03 23:05:12 +00:00
Daniel Barlow
f9f4d97bb8 convert flash params to int 2023-11-12 20:39:06 +00:00
Daniel Barlow
abfb35a231 and entryPoint 2023-11-12 18:50:47 +00:00
Daniel Barlow
315907de98 convert hardware loadAddress to int 2023-11-12 18:47:31 +00:00
Daniel Barlow
824536f9b3 in uimage FIT, honour ${arch} 2023-11-05 11:31:28 +00:00
Daniel Barlow
c341eb46b6 use hostPlatform.linuxArch in kernel derivation 2023-10-12 18:59:45 +01:00
Daniel Barlow
bd20f3e419 uimage: make fit optional 2023-10-09 19:47:57 +01:00
Daniel Barlow
c18f07f02f aarch64: make tftpboot work
- patch dtb to add reserved-memory stanza for the phram device to use
  (aarch64 does not accept memmap= command line option)

- patch phram driver to use memremap() instead of ioremap() as
  ioremap can't be used for system ram on arm devices
2023-10-09 19:47:57 +01:00
Daniel Barlow
269e972970 use FIT images not appended DTB for aarch64 uimage 2023-10-07 22:52:09 +01:00
Daniel Barlow
abd01a7809 apply mtdpslit patch only for openwrt kernel
it doesn't apply to mainline because there's no mtdsplit
in mainline
2023-09-26 18:40:22 +01:00
Daniel Barlow
dfe7228b99 fix jffs2 mtd partition splitting on little-endian CPU 2023-09-26 16:43:03 +01:00
Daniel Barlow
119d6ad379 pkgconfig is now pkg-config 2023-09-21 12:25:35 +01:00
Daniel Barlow
4f29bdd3ed detect arch in kernel and uimage
also move kernel builder to pkgs/

FIXME we need to straighten out the mess in calling
dtb.nix/uimage.nix
2023-09-20 18:26:33 +01:00
Daniel Barlow
6101f3f3d8 load necessary kernel modules for firewall 2023-06-27 21:18:09 +01:00
Daniel Barlow
591bd78509 extract writeKconfig to its own file 2023-06-26 20:49:43 +01:00
Daniel Barlow
2e15acd61c whitespace 2023-04-10 17:46:39 +01:00
Daniel Barlow
a5cfa37ed3 unify kernel command line handling
We now use MIPS_CMDLINE_DTB_EXTEND for all boot varieties
(tftpboot, flash boot, kexec) with the addition of
MIPS_BOOTLOADER_CMDLINE_REQUIRE_COOKIE - local patch -
so that the bootloader args are ignored unless they
contain the string "liminix"
2023-03-23 22:24:44 +00:00
Daniel Barlow
4b19568f1b add kexecboot
This allows booting a new image from a running OS, creating a
phram mtd for the root squashfs

* enable CONFIG_KEXEC
* add modules/kexecboot
* patch kexec-tools to add --map-file option for the squashfs
* patch kernel kexec code to call new kernel with DTB
2023-03-19 20:25:43 +00:00
Daniel Barlow
891db9edc5 kernel derivation: add output for module support 2023-02-22 18:33:17 +00:00
Daniel Barlow
8cead61740 convert devices from overlay to module
this makes it possible for devices to stash things in
`config` (e.g. pathname to DTS) that can later be overwritten
(even by the end user)
2023-02-10 17:54:33 +00:00
Daniel Barlow
76243d306c remove checkedConfig, check all the config 2022-10-19 22:09:38 +01:00
Daniel Barlow
9c5b5a54e2 remove unneeded Kconfig.local handling 2022-10-19 18:23:20 +01:00
Daniel Barlow
f1b7780537 speed up kernel build
by having two separate derivations for patching the kernel source tree
and building it, we have to copy said source trees from one store
location to another which takes non-neglible time on spinning rust
(literally minutes on my machine). Replace with a single derivation
that can do more things on one tree in-place
2022-10-19 17:34:22 +01:00