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lltng-tools: Fix build with lld linker

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liblttng-ctl is exposting undefined symbols which are provided by
libcommon-gpl.a and is not linked into liblttng-ctl.so

(From OE-Core rev: a555a7525beebd4a6103755a6e6df6aa2e4ee7de)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Khem Raj
2025-08-20 23:45:19 -07:00
committed by Richard Purdie
parent 72d1535163
commit fd0ba87ae0
2 changed files with 44 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta/recipes-kernel/lttng/lttng-tools/0001-liblttng-ctl-drop-index-allocator-symbols-from-versi.patch
+43
View File
@@ -0,0 +1,43 @@
From adafa15a0ea145e1e98f68e2a56512e83f1f6798 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Tue, 19 Aug 2025 20:06:21 -0700
Subject: [PATCH] liblttng-ctl: drop index allocator symbols from version
script
The lttng_index_allocator_* functions are implemented in libcommon-gpl,
not in liblttng-ctl. Since liblttng-ctl does not link against
libcommon-gpl and does not export these symbols, referencing them in
liblttng-ctl.sym causes link failures with LLD:
ld.lld: error: version script assignment of 'global' to symbol
'lttng_index_allocator_alloc' failed: symbol not defined
...
Remove these entries from the version script to align the exported ABI
with the actual symbols provided by liblttng-ctl.
This fixes builds with clang + lld.
Upstream-Status: Submitted [https://review.lttng.org/c/lttng-tools/+/15156]
Change-Id: I27f40f3d38af7014cf5356230e06aa291c9a3c5f
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
src/lib/lttng-ctl/liblttng-ctl.sym | 5 -----
1 file changed, 5 deletions(-)
diff --git a/src/lib/lttng-ctl/liblttng-ctl.sym b/src/lib/lttng-ctl/liblttng-ctl.sym
index 27900ca44..641084750 100644
--- a/src/lib/lttng-ctl/liblttng-ctl.sym
+++ b/src/lib/lttng-ctl/liblttng-ctl.sym
@@ -336,11 +336,6 @@ lttng_health_state
lttng_health_thread_name
lttng_health_thread_state
lttng_ht_seed
-lttng_index_allocator_alloc
-lttng_index_allocator_create
-lttng_index_allocator_destroy
-lttng_index_allocator_get_index_count
-lttng_index_allocator_release
lttng_kernel_probe_location_address_create
lttng_kernel_probe_location_address_get_address
lttng_kernel_probe_location_destroy
meta/recipes-kernel/lttng/lttng-tools_2.14.0.bb
+1
View File
@@ -52,6 +52,7 @@ SRC_URI = "https://lttng.org/files/lttng-tools/lttng-tools-${PV}.tar.bz2 \
file://0001-gen-ust-events-constructor-change-rpath-to-libdir-li.patch \
file://0001-eventfd.cpp-Remove-the-scope-resolution-operator.patch \
file://disable-tests2.patch \
file://0001-liblttng-ctl-drop-index-allocator-symbols-from-versi.patch \
"
SRC_URI[sha256sum] = "d8c39c26cec13b7bd82551cd52a22efc358b888e36ebcf9c1b60ef1c3a3c2fd3"