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From: <kai.kang@windriver.com>
To: <richard.purdie@linuxfoundation.org>
Cc: <openembedded-core@lists.openembedded.org>
Subject: [PATCH] lttng-tools: not rrecommend on lttng-modules
Date: Mon, 2 Mar 2026 14:40:10 +0800	[thread overview]
Message-ID: <20260302064010.1421315-1-kai.kang@windriver.com> (raw)

From: Kai Kang <kai.kang@windriver.com>

As in the lttng manual [1]:

  Most distributions mark the LTTng-modules and LTTng-UST packages as
  optional when installing LTTng-tools (which is always required). In
  the following sections, we always provide the steps to install all
  three, but note that:

  * You only need to install LTTng-modules if you intend to use the
    Linux kernel LTTng tracer.
  * You only need to install LTTng-UST if you intend to use the user
    space LTTng tracer.

there should be no force dependency between lttng-tools and
lttng-modules. When set lttng-modules in RRECOMMENDS, it always forces
to build lttng-modules whether it is required or not.

Compare to rpm spec [2] and debian conf [3], there are no any dependency
between them too.

So remove the RRECOMMENDS setting.

[1]: https://lttng.org/docs/v2.14/#doc-installing-lttng
[2]: https://rpmfind.net/linux/RPM/fedora/updates/testing/43/aarch64/Packages/l/lttng-tools-2.14.0-4.fc43.aarch64.html
[3]: https://packages.debian.org/trixie/lttng-tools

Signed-off-by: Kai Kang <kai.kang@windriver.com>
---
 meta/recipes-kernel/lttng/lttng-tools_2.14.1.bb | 1 -
 1 file changed, 1 deletion(-)

diff --git a/meta/recipes-kernel/lttng/lttng-tools_2.14.1.bb b/meta/recipes-kernel/lttng/lttng-tools_2.14.1.bb
index 620ddfb1cf..3a3f2cff2c 100644
--- a/meta/recipes-kernel/lttng/lttng-tools_2.14.1.bb
+++ b/meta/recipes-kernel/lttng/lttng-tools_2.14.1.bb
@@ -14,7 +14,6 @@ include lttng-platforms.inc
 
 DEPENDS = "liburcu popt libxml2 util-linux bison-native babeltrace2"
 RDEPENDS:${PN} = "libgcc"
-RRECOMMENDS:${PN} += "${LTTNGMODULES}"
 RDEPENDS:${PN}-ptest += "make perl bash gawk procps perl-module-overloading coreutils util-linux kmod ${LTTNGMODULES} sed python3-core grep binutils python3-multiprocessing"
 RDEPENDS:${PN}-ptest:append:libc-glibc = " glibc-utils"
 RDEPENDS:${PN}-ptest:append:libc-musl = " musl-utils"
-- 
2.34.1



             reply	other threads:[~2026-03-02  6:40 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-02  6:40 kai.kang [this message]
2026-03-18  2:08 ` [OE-core] [PATCH] lttng-tools: not rrecommend on lttng-modules Kai
2026-03-18  7:37 ` Richard Purdie
2026-03-18  7:45   ` Kai

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