Hi,
I've recently investigated the FTBFS on sparc (where it fails even before
getting to the testing stage [0]), and found that the build failure was
caused by lack of a call to gst_init() in the BOOT section of xs/Gst.xs.
Without it the code segfaults with the following backtrace:
#0 0x7022aaec in pthread_mutex_lock () from /lib/libpthread.so.0
#1 0x70763830 in gst_atomic_int_read (aint=0x708cfb0c) at gstatomic_impl.h:488
#2 0x707917d4 in gst_debug_get_default_threshold () at gstinfo.c:761
#3 0x70791a48 in gst_debug_reset_threshold (category=0x44618, unused=0x0) at
gstinfo.c:782
#4 0x707927b0 in _gst_debug_category_new (name=0x7080abc8 "GST_DATAFLOW", color=258,
description=0x7080abd8 "dataflow inside pads") at gstinfo.c:886
#5 0x70793f9c in gst_pad_get_type () at gstpad.c:117
#6 0x706d6aac in boot_GStreamer (my_perl=0x24098, cv=0xe084c) at Gst.xs:31
gst_debug_get_default threshold tries to read the default debug level from
a lock-protected variable, which is normally initialized by gst_init().
Since it is not called, the lock is NULL, resulting in a segfault. I was
able to build libgstreamer-perl successfully on sparc (passing all the
tests) after applying the attached patch. The full build log is available
at [1]. It might be that it will also help with other build failures.
[0]
http://buildd.debian.org/fetch.php?pkg=libgstreamer-perl&arch=sparc&ver=0.04-1&stamp=1137218524&file=log
[1] http://www.wooyd.org/debian/libgstreamer-perl/
Best regards,
Jurij Smakov [EMAIL PROTECTED]
Key: http://www.wooyd.org/pgpkey/ KeyID: C99E03CC
diff -aur a/xs/Gst.xs b/xs/Gst.xs
--- a/xs/Gst.xs 2005-06-12 10:29:15.000000000 -0700
+++ b/xs/Gst.xs 2006-01-27 21:37:51.362482192 -0800
@@ -27,6 +27,7 @@
* use a static variable directly, instead of the usual reference to
* the _get_type function. Thus, the macros we rely on are NULL until
* the corresponding _get_type() function has been called. */
+ gst_init (NULL, NULL);
gst_object_get_type ();
gst_pad_get_type ();
gst_real_pad_get_type ();
