* [Buildroot] [PATCH v2] package/runc: enable uClibc support
@ 2026-09-01 21:19 Waldemar Brodkorb
2026-10-10 17:28 ` Thomas Petazzoni via buildroot
0 siblings, 1 reply; 2+ messages in thread
From: Waldemar Brodkorb @ 2026-09-01 21:19 UTC (permalink / raw)
To: buildroot; +Cc: Thomas Petazzoni, Christian Stewart
fexecve was added to uClibc in 2019 in commit
858ffad217076227089cc17eb832db0bd1497792.
Also containerd and docker can be used with uClibc.
Runtime tested on a Raspberry PI4 (64 Bit).
System compiled with Bootlin Toolchain.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
---
v1 -> v2:
- fix comment in runc Config.in (Thomas Petazzoni)
- also check recursive dependencies - I already
had that prepared while testing docker on my rpi.
(Thomas Petazzoni)
---
package/containerd/Config.in | 5 ++---
package/docker-engine/Config.in | 4 +---
package/runc/Config.in | 5 ++---
3 files changed, 5 insertions(+), 9 deletions(-)
diff --git a/package/containerd/Config.in b/package/containerd/Config.in
index 9712b11b1c..1f9cf5b1b4 100644
--- a/package/containerd/Config.in
+++ b/package/containerd/Config.in
@@ -3,7 +3,6 @@ config BR2_PACKAGE_CONTAINERD
depends on BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
depends on BR2_PACKAGE_HOST_GO_TARGET_CGO_LINKING_SUPPORTS
depends on BR2_TOOLCHAIN_HAS_THREADS
- depends on !BR2_TOOLCHAIN_USES_UCLIBC # runc
depends on BR2_USE_MMU # util-linux
select BR2_PACKAGE_HOST_GO
select BR2_PACKAGE_RUNC if !BR2_PACKAGE_CRUN # runtime dependency
@@ -62,8 +61,8 @@ config BR2_PACKAGE_CONTAINERD_CRI
endif
-comment "containerd needs a glibc or musl toolchain w/ threads"
+comment "containerd needs a toolchain w/ threads"
depends on BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
depends on BR2_PACKAGE_HOST_GO_TARGET_CGO_LINKING_SUPPORTS
depends on BR2_USE_MMU
- depends on !BR2_TOOLCHAIN_HAS_THREADS || BR2_TOOLCHAIN_USES_UCLIBC
+ depends on !BR2_TOOLCHAIN_HAS_THREADS
diff --git a/package/docker-engine/Config.in b/package/docker-engine/Config.in
index 541472d957..37d7f7928d 100644
--- a/package/docker-engine/Config.in
+++ b/package/docker-engine/Config.in
@@ -4,7 +4,6 @@ config BR2_PACKAGE_DOCKER_ENGINE
depends on BR2_PACKAGE_HOST_GO_TARGET_CGO_LINKING_SUPPORTS
depends on BR2_TOOLCHAIN_HAS_THREADS
depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_2
- depends on !BR2_TOOLCHAIN_USES_UCLIBC # containerd -> runc
depends on BR2_USE_MMU # containerd
depends on !BR2_PACKAGE_CGROUPFS_MOUNT
depends on BR2_PACKAGE_LIBSECCOMP_ARCH_SUPPORTS # libseccomp
@@ -79,11 +78,10 @@ config BR2_PACKAGE_DOCKER_ENGINE_DOCKER_INIT_NAME
endif
-comment "docker-engine needs a glibc or musl toolchain w/ threads, headers >= 5.2"
+comment "docker-engine needs a toolchain w/ threads, headers >= 5.2"
depends on BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
depends on BR2_PACKAGE_HOST_GO_TARGET_CGO_LINKING_SUPPORTS
depends on BR2_PACKAGE_LIBSECCOMP_ARCH_SUPPORTS
depends on !BR2_TOOLCHAIN_HAS_THREADS || \
- BR2_TOOLCHAIN_USES_UCLIBC || \
!BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_2
depends on BR2_USE_MMU
diff --git a/package/runc/Config.in b/package/runc/Config.in
index 73eac72527..4c6664d6f7 100644
--- a/package/runc/Config.in
+++ b/package/runc/Config.in
@@ -3,7 +3,6 @@ config BR2_PACKAGE_RUNC
depends on BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
depends on BR2_PACKAGE_HOST_GO_TARGET_CGO_LINKING_SUPPORTS
depends on BR2_TOOLCHAIN_HAS_THREADS
- depends on !BR2_TOOLCHAIN_USES_UCLIBC # no fexecve
select BR2_PACKAGE_HOST_GO
help
runC is a CLI tool for spawning and running containers
@@ -11,7 +10,7 @@ config BR2_PACKAGE_RUNC
https://github.com/opencontainers/runc
-comment "runc needs a glibc or musl toolchain w/ threads"
+comment "runc needs a toolchain w/ threads"
depends on BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS && \
BR2_PACKAGE_HOST_GO_TARGET_CGO_LINKING_SUPPORTS
- depends on !BR2_TOOLCHAIN_HAS_THREADS || BR2_TOOLCHAIN_USES_UCLIBC
+ depends on !BR2_TOOLCHAIN_HAS_THREADS
--
2.47.3
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* Re: [Buildroot] [PATCH v2] package/runc: enable uClibc support
2026-09-01 21:19 [Buildroot] [PATCH v2] package/runc: enable uClibc support Waldemar Brodkorb
@ 2026-10-10 17:28 ` Thomas Petazzoni via buildroot
0 siblings, 0 replies; 2+ messages in thread
From: Thomas Petazzoni via buildroot @ 2026-10-10 17:28 UTC (permalink / raw)
To: Waldemar Brodkorb; +Cc: buildroot, Christian Stewart
On Tue, Sep 01, 2026 at 11:19:53PM +0200, Waldemar Brodkorb wrote:
> fexecve was added to uClibc in 2019 in commit
> 858ffad217076227089cc17eb832db0bd1497792.
>
> Also containerd and docker can be used with uClibc.
>
> Runtime tested on a Raspberry PI4 (64 Bit).
> System compiled with Bootlin Toolchain.
>
> Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Applied to master, thanks!
Best regards,
Thomas Petazzoni
--
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
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