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From: Edouard Tisserant <edouard.tisserant@gmail.com>
To: Philippe Gerum <rpm@xenomai.org>,
	"Xenomai (xenomai@xenomai.org)" <xenomai@xenomai.org>
Subject: Re: [Xenomai] Crash with longer dlopen/dlcose sequence
Date: Fri, 27 Apr 2018 12:31:06 +0200	[thread overview]
Message-ID: <e937a73f-ef0f-5394-bdae-400fcfe30ddb@gmail.com> (raw)
In-Reply-To: <1dbe3f00-a866-248c-3799-a0d8efeee4e4@gmail.com>


> It seems that __xenomai_init() calls many things from the setup list, in
> multiple shared objects. So I would need to build another flavor of the
> boilerplate: bootstrap.so, from witch I can call xenomai_init() directly
> using python's ctypes. Does it look realistic ?

For the record, following python code calls xenomai_init_dso() directly
from libcobalt.so.

from ctypes import *
# declaration
argvp_type = POINTER(POINTER(POINTER(c_char)))
cobalt = cdll.LoadLibrary("libcobalt.so")
cobalt.xenomai_init_dso.argtypes = (POINTER(c_int), argvp_type)
# init params
argc = c_int(0)
argv = (POINTER(c_char) * 2)()
argv[0] = create_string_buffer("prog_name")
argv[1] = None
# call
cobalt.xenomai_init_dso(pointer(argc), cast(pointer(argv), argvp_type))

Now let see if dlopen/dlclose some code using alchemy segfaults or not...

--
Edouard




  reply	other threads:[~2018-04-27 10:31 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-26  7:02 [Xenomai] Crash with longer dlopen/dlcose sequence Edouard Tisserant
2018-04-26  7:39 ` Edouard Tisserant
2018-04-26  9:24   ` Edouard Tisserant
2018-04-26 11:07     ` Henning Schild
2018-04-26 15:30     ` Philippe Gerum
2018-04-26 17:16       ` Edouard Tisserant
2018-04-27 10:31         ` Edouard Tisserant [this message]
2018-04-27 14:43           ` Edouard Tisserant
2018-04-27 15:43             ` Philippe Gerum
2018-05-09  7:45               ` Edouard Tisserant
2018-05-09  8:57                 ` Edouard Tisserant
2018-05-09 10:27                   ` Edouard Tisserant
2018-05-12 17:08                     ` Philippe Gerum
2018-05-16  9:20                       ` Edouard Tisserant
2018-05-18  7:08                         ` Philippe Gerum

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