VxWorks fails to load kernel-mode modules with weak undefined symbols.
In RTP mode modules, that undergo final linking, weak undefined
symbols are not a problem.
This patch adds kernel-mode VxWorks multilibs to the set of targets
that don't support weak undefined symbols without special flags, in
which tzdb's zoneinfo_dir_override is given a weak definition.
Regstrapped on x86_64-linux-gnu. Also tested with gcc-13 on arm-,
aarch64-, x86- and x86_64-vxworks7r2. Ok to install?
for libstdc++-v3/ChangeLog
* src/c++20/tzdb.cc (__gnu_cxx::zoneinfo_dir_override): Define
on VxWorks non-RTP.
---
libstdc++-v3/src/c++20/tzdb.cc | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/libstdc++-v3/src/c++20/tzdb.cc b/libstdc++-v3/src/c++20/tzdb.cc
index 890a4c53e2d44..639d1c440ba16 100644
--- a/libstdc++-v3/src/c++20/tzdb.cc
+++ b/libstdc++-v3/src/c++20/tzdb.cc
@@ -70,8 +70,9 @@ namespace __gnu_cxx
#else
[[gnu::weak]] const char* zoneinfo_dir_override();
-#if defined(__APPLE__) || defined(__hpux__)
- // Need a weak definition for Mach-O.
+#if defined(__APPLE__) || defined(__hpux__) \
+ || (defined(__VXWORKS__) && !defined(__RTP__))
+ // Need a weak definition for Mach-O et al.
[[gnu::weak]] const char* zoneinfo_dir_override()
{
#ifdef _GLIBCXX_ZONEINFO_DIR
--
Alexandre Oliva, happy hacker https://FSFLA.org/blogs/lxo/
Free Software Activist GNU Toolchain Engineer
More tolerance and less prejudice are key for inclusion and diversity
Excluding neuro-others for not behaving ""normal"" is *not* inclusive
