On Sun, 14 Aug 2022 23:15:51 -0400 "Joel Fernandes (Google)" <joel@xxxxxxxxxxxxxxxxx> wrote: > Linking in C++ compilers (including g++) causes references to be created > with their arguments. Due to this, trace library headers included into > C++ code base will cause their objects to built with symbols with > arguments. Apparently this is to support operator overloading in C++. > > This causes linker errors. For example, here's what I get when I try to > link libtraceevent with a main.o built from a C++ main.cc source file. > > main.cc:(.text+0x90): > undefined reference to `trace_seq_init(trace_seq*)' > undefined reference to `trace_seq_do_printf(trace_seq*)' > undefined reference to `tep_event_fields(tep_event*)' > > The standard fix for this is to wrap the C project's header in > extern "C". > > With this patch, I am able to link libtraceevent into a C++ > code base. > > Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx> > --- Applied. Thanks Joel! -- Steve
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