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SubjectRe: [PATCH 1/2] trace-cmd: Makefile - link all trace-* objects into ctracecmd.so
On Mon, 14 Nov 2016 11:55:42 +0000
Andreas Platschek <andreas.platschek@opentech.at> wrote:

> Got a few undefined symbols when using the Python interface to trace-cmd,
> the first one was:
>
> root@wheezy:~/trace-cmd# python tracecmd.py
> Traceback (most recent call last):
> File "tracecmd.py", line 22, in <module>
> from ctracecmd import *
> ImportError: /home/andi/working_git/trace-cmd/ctracecmd.so: undefined symbol: get_file_content
>
> linking the objects that contain those symbols fixes the problem.
>
> Signed-off-by: Andreas Platschek <andreas.platschek@opentech.at>
> ---
> Makefile | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/Makefile b/Makefile
> index 62cb25b..f86cb77 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -344,7 +344,8 @@ TCMD_LIB_OBJS = $(PEVENT_LIB_OBJS) trace-util.o trace-input.o trace-ftrace.o \
> trace-output.o trace-record.o trace-recorder.o \
> trace-restore.o trace-usage.o trace-blk-hack.o \
> kbuffer-parse.o event-plugin.o trace-hooks.o \
> - trace-msg.o
> + trace-msg.o trace-stat.o trace-listen.o trace-stream.o \
> + trace-read.o trace-profile.o trace-hash.o

Actually, I can't do this. The files in the library are licensed under
LGPL, but these files you added are all GPL.

There's a reason I separated them as such. I guess we may be able to
move things out of the files if they are properly authored. That is, if
I wrote them. Some code I took and used in trace-cmd came from GPL v2
code, so those must remain GPL v2.

-- Steve

>
> PLUGIN_OBJS =
> PLUGIN_OBJS += plugin_jbd2.o

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