2 files changed, 42 insertions, 0 deletions

diff --git a/meta/recipes-kernel/lttng/lttng-tools/0001-eventfd.cpp-Remove-the-scope-resolution-operator.patch b/meta/recipes-kernel/lttng/lttng-tools/0001-eventfd.cpp-Remove-the-scope-resolution-operator.patch
new file mode 100644
index 0000000000..02bd1d1db0
--- /dev/null
+++ b/meta/recipes-kernel/lttng/lttng-tools/0001-eventfd.cpp-Remove-the-scope-resolution-operator.patch
@@ -0,0 +1,41 @@
+From da83d31a8dd555c28eb27bd7a7d3c53b51d5f276 Mon Sep 17 00:00:00 2001
+From: Mingli Yu <mingli.yu@windriver.com>
+Date: Sun, 20 Jul 2025 16:37:57 +0800
+Subject: [PATCH] eventfd.cpp: Remove the scope resolution operator
+
+Remove the scope resolution operator :: to fix the below build failure
+with musl.
+ | ../../../sources/lttng-tools-2.14.0/src/common/eventfd.cpp:18:31: error: expected id-expression before numeric constant
+ |    18 |                 int flags = ::EFD_CLOEXEC;
+ |       |                               ^~~~~~~~~~~
+ | ../../../sources/lttng-tools-2.14.0/src/common/eventfd.cpp:21:36: error: expected id-expression before numeric constant
+ |    21 |                         flags |= ::EFD_SEMAPHORE;
+ |       |                                    ^~~~~~~~~~~~~
+
+Upstream-Status: Pending [The message to lttng-dev awaits moderator approval]
+
+Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
+---
+ src/common/eventfd.cpp | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/common/eventfd.cpp b/src/common/eventfd.cpp
+index fe5b549..3379b0b 100644
+--- a/src/common/eventfd.cpp
++++ b/src/common/eventfd.cpp
+@@ -15,10 +15,10 @@
+ 
+ lttng::eventfd::eventfd(bool use_semaphore_semantics, std::uint64_t initial_value) :
+        file_descriptor([use_semaphore_semantics, initial_value]() {
+-               int flags = ::EFD_CLOEXEC;
++               int flags = EFD_CLOEXEC;
+ 
+                if (use_semaphore_semantics) {
+-                       flags |= ::EFD_SEMAPHORE;
++                       flags |= EFD_SEMAPHORE;
+                }
+ 
+                const auto raw_fd = ::eventfd(initial_value, flags);
+-- 
+2.34.1
+
diff --git a/meta/recipes-kernel/lttng/lttng-tools_2.14.0.bb b/meta/recipes-kernel/lttng/lttng-tools_2.14.0.bb
index 66fec08ff3..262bea0748 100644
--- a/meta/recipes-kernel/lttng/lttng-tools_2.14.0.bb
+++ b/meta/recipes-kernel/lttng/lttng-tools_2.14.0.bb
@@ -50,6 +50,7 @@ SRC_URI = "https://lttng.org/files/lttng-tools/lttng-tools-${PV}.tar.bz2 \
            file://lttng-sessiond.service \
            file://disable-tests.patch \
            file://0001-gen-ust-events-constructor-change-rpath-to-libdir-li.patch \
+           file://0001-eventfd.cpp-Remove-the-scope-resolution-operator.patch \
            "
 
 SRC_URI[sha256sum] = "d8c39c26cec13b7bd82551cd52a22efc358b888e36ebcf9c1b60ef1c3a3c2fd3"