On 12-12-19 01:39 PM, Mathieu Desnoyers wrote:
* ajonwa ajonwa ([email protected]) wrote:
Hello everyone,
I get the following error message while attempting to compile babeltrace with
python bindings:
CC _babeltrace_la-babeltrace_wrap.lo
babeltrace_wrap.c: In function '_wrap__bt_ctf_field_type':
babeltrace_wrap.c:4621:56: warning: passing argument 1 of 'bt_ctf_field_type'
from incompatible pointer type [enabled by default]
../../include/babeltrace/ctf/events.h:158:18: note: expected 'const struct
declaration *' but argument is of type 'const struct definition *'
babeltrace_wrap.c: In function '_wrap__bt_ctf_get_int_signedness':
babeltrace_wrap.c:4643:51: warning: passing argument 1 of
'bt_ctf_get_int_signedness' from incompatible pointer type [enabled by default]
../../include/babeltrace/ctf/events.h:167:5: note: expected 'const struct
declaration *' but argument is of type 'const struct definition *'
babeltrace_wrap.c: In function '_wrap__bt_ctf_get_int_base':
babeltrace_wrap.c:4665:45: warning: passing argument 1 of 'bt_ctf_get_int_base'
from incompatible pointer type [enabled by default]
../../include/babeltrace/ctf/events.h:172:5: note: expected 'const struct
declaration *' but argument is of type 'const struct definition *'
babeltrace_wrap.c: In function '_wrap__bt_ctf_get_int_byte_order':
babeltrace_wrap.c:4687:51: warning: passing argument 1 of
'bt_ctf_get_int_byte_order' from incompatible pointer type [enabled by default]
../../include/babeltrace/ctf/events.h:178:5: note: expected 'const struct
declaration *' but argument is of type 'const struct definition *'
babeltrace_wrap.c: In function '_wrap__bt_ctf_get_int_len':
babeltrace_wrap.c:4709:39: warning: passing argument 1 of 'bt_ctf_get_int_len'
from incompatible pointer type [enabled by default]
../../include/babeltrace/ctf/events.h:184:9: note: expected 'const struct
declaration *' but argument is of type 'const struct definition *'
babeltrace_wrap.c: In function '_wrap__bt_ctf_get_encoding':
babeltrace_wrap.c:4731:66: warning: passing argument 1 of 'bt_ctf_get_encoding'
from incompatible pointer type [enabled by default]
../../include/babeltrace/ctf/events.h:190:26: note: expected 'const struct
declaration *' but argument is of type 'const struct definition *'
babeltrace_wrap.c: In function '_wrap__bt_ctf_get_array_len':
babeltrace_wrap.c:4753:46: warning: passing argument 1 of
'bt_ctf_get_array_len' from incompatible pointer type [enabled by default]
../../include/babeltrace/ctf/events.h:196:5: note: expected 'const struct
declaration *' but argument is of type 'const struct definition *'
babeltrace_wrap.c: In function 'init_babeltrace':
babeltrace_wrap.c:6020:61: error: 'BT_SEEK_END' undeclared (first use in this
function)
babeltrace_wrap.c:6020:61: note: each undeclared identifier is reported only
once for each function it appears in
make[3]: *** [_babeltrace_la-babeltrace_wrap.lo] Error 1
I got the source code by checking out bindings/python (git checkout
bindings/python).
I will be grateful if someone would tell how to fix the error.
Babeltrace API changed since this was made. To fix it, simply edit the
appropriate lines of the
lttng.i.in swig file in extras/bindings/swig/python (see the
CTF/EVENTS.H section of the file) and make sure all function
declarations match the ones in include/ctf/events.h
From the error message, most (if not all) *const struct definition*
args must be changed to
*const struct declaration*
This might yield some errors in the Python code itself regarding
Definition objects.
That class would need to be rewritten to fit the new API, along with the
corresponding functions.
But it should compile anyway
Also the 3 BT_SEEK_END lines must be changed to BT_SEEK_LAST
Hope this helps
Danny
This branch is currently in development, and might be out of sync with
the master branch of babeltrace at the moment. We don't have immediate
plans to work on it, but bontributions are welcome.
Thanks,
Mathieu
B
Thanks,
Geoffreyget_int_s
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