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| author | Alexander Kanavin <alex.kanavin@gmail.com> | 2023-04-28 10:43:46 +0200 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2023-05-05 11:07:26 +0100 |
| commit | 04514378e0136c7d70c20e2a46089353288cedd4 (patch) | |
| tree | 9d808046c7e197c12816ec507581b587235c06da | |
| parent | 7e90e5bdd3803851edb659a533ad676c0c41a0f1 (diff) | |
| download | poky-04514378e0136c7d70c20e2a46089353288cedd4.tar.gz | |
bitbake.conf: set minimum required target kernel to 5.15
In particular this enables a number of useful features in glibc
(which utilize newer kernel APIs), such as actually using 64 bit
time_t versions of kernel syscalls:
https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/kernel-features.h;h=07b440f4eea364b05fa49bf71ceebf78f80efe13;hb=HEAD#l164
In general, OLDEST_KERNEL setting is used in these two places:
- kernel.bbclass compares it with the target kernel version being built.
If a vendor BSP still offers an older kernel, OLDEST_KERNEL should be set to match.
- glibc recipe passes it as a parameter to the build so that additional features
and optimized paths that kernels older than OLDEST_KERNEL are enabled.
Note that there is a related setting, SDK_OLDEST_KERNEL, which remains as
it was (at 3.2.0) to ensure maximum compatibility with kernels on SDK host
machines; that setting is used to build nativesdk-glibc and verify the kernel
version when the SDK is being installed.
Build host kernel versions are not checked directly; compatible distros
are listed instead.
(From OE-Core rev: feb8e3fb71131a414a2a9271832b4e16860301ea)
Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
| -rw-r--r-- | meta/conf/bitbake.conf | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf index afd9e2f552..2db84a46ee 100644 --- a/meta/conf/bitbake.conf +++ b/meta/conf/bitbake.conf | |||
| @@ -469,12 +469,7 @@ SDKPATHINSTALL = "/usr/local/${SDK_NAME_PREFIX}-${SDK_ARCH}" | |||
| 469 | # Kernel info. | 469 | # Kernel info. |
| 470 | ################################################################## | 470 | ################################################################## |
| 471 | 471 | ||
| 472 | OLDEST_KERNEL = "3.2.0" | 472 | OLDEST_KERNEL = "5.15" |
| 473 | OLDEST_KERNEL:aarch64 = "3.14" | ||
| 474 | OLDEST_KERNEL:nios2 = "3.19" | ||
| 475 | OLDEST_KERNEL:powerpc64le = "3.10.0" | ||
| 476 | OLDEST_KERNEL:riscv32 = "5.4" | ||
| 477 | OLDEST_KERNEL:riscv64 = "4.15" | ||
| 478 | 473 | ||
| 479 | # SDK_OLDEST_KERNEL can't be set using overrides since there are | 474 | # SDK_OLDEST_KERNEL can't be set using overrides since there are |
| 480 | # none for the SDK architecture. Best to set it from a machine-sdk | 475 | # none for the SDK architecture. Best to set it from a machine-sdk |