Hi, We are noticing the presence of the following patch in various openembedded gcc versions:
0024-PR-target-32219.patch "From e0d15f4f8bf28c351b9215ca37f1caa24df0e1fd Mon Sep 17 00:00:00 2001 From: Khem Raj <raj.k...@gmail.com> Date: Fri, 29 Mar 2013 09:18:54 +0400 Subject: [PATCH 24/35] PR target/32219 * varasm.c (default_binds_local_p_1): Weak data is not local. Signed-off-by: Bernhard Reutner-Fischer <rep.dot....@gmail.com> Signed-off-by: Khem Raj <raj.k...@gmail.com> Upstream-Status: Backport" However, contrarily to its "Backport" status, that patch is not upstream in gcc, and we're starting to wonder if this would be the patch that breaks handling of start/stop automatic hidden symbols we use in lttng-ust. We are only experiencing problems on the various openembedded compilers, but on no other distro (with same compiler versions), which leads us to suspect a buggy distro-specific gcc patch. We've been testing with openembedded gcc-4.9.2-r0. The original gold linker issue that this patch was trying to address seems to have been fixed in the gold linke since then. Refs: http://lists.lttng.org/pipermail/lttng-dev/2014-May/023112.html https://gcc.gnu.org/ml/gcc-help/2014-05/msg00042.html http://cgit.openembedded.org/openembedded-core/commit/?id=3cb2b003db7371b3a47d02c08352a262e1e419b4 https://sourceware.org/bugzilla/show_bug.cgi?id=15435 Thoughts ? Thanks, Mathieu -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com _______________________________________________ lttng-dev mailing list lttng-dev@lists.lttng.org http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
