Some Xenomai code is executed before the main function is called. What I
do not understand is why gdb does not stop at the place of the segfault?
Good point. Sorry, it does, but I fail to get useful information from there.
Even
with -g and
set solib-absolute-prefix notexistent
set solib-search-path
/opt/uClinux/blackfin-linux-dist/staging/usr/lib:/opt/uClinux/bfin-linux-uclibc/bfin-linux-uclibc/runtime/lib
..gdb doesn't seem to be able to resolve the addresses in the library:
Program received signal SIGSEGV, Segmentation fault.
0x01666f10 in ?? ()
(gdb) bt
#0 0x01666f10 in ?? ()
#1 0x01666eda in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb) info sharedlibrary
From To Syms Read Shared Object Library
0x016c33cc 0x016c8244 No
/opt/uClinux-2010R1-RC5_tools-RC4/blackfin-linux-dist/staging/usr/lib/libpthread_rt.so.1
0x00ea936c 0x00eab048 No
/opt/uClinux-2010R1-RC5_tools-RC4/blackfin-linux-dist/staging/usr/lib/libxenomai.so.0
0x01664108 0x016689ec No
/opt/uClinux-2010R1-RC5_tools-RC4/bfin-linux-uclibc/bfin-linux-uclibc/runtime/lib/libpthread.so.0
0x0152060c 0x01520a54 No
/opt/uClinux-2010R1-RC5_tools-RC4/bfin-linux-uclibc/bfin-linux-uclibc/runtime/lib/librt.so.0
0x016523d4 0x0165dd88 No
/opt/uClinux-2010R1-RC5_tools-RC4/bfin-linux-uclibc/bfin-linux-uclibc/runtime/lib/libgcc_s.so.1
0x0160ca24 0x01636df8 No
/opt/uClinux-2010R1-RC5_tools-RC4/bfin-linux-uclibc/bfin-linux-uclibc/runtime/lib/libc.so.0
0x019c0c60 0x019c4634 No
/opt/uClinux-2010R1-RC5_tools-RC4/bfin-linux-uclibc/bfin-linux-uclibc/runtime/lib/ld-uClibc.so.0
(gdb)
Kolja
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