the only error message i see now is the following :
sh: symbol lookup error: /usr/local/lib/libustfork.so: undefined symbol:
ust_before_fork
the simlink is valid and points to the librairy.
$readelf -a /usr/local/lib/libustfork.so.0.0.0 | grep ust_before_fork
00001ba4 00000607 R_386_JUMP_SLOT 00000000 ust_before_fork
6: 00000000 0 NOTYPE GLOBAL DEFAULT UND ust_before_fork
64: 00000000 0 NOTYPE GLOBAL DEFAULT UND ust_before_fork
it seems that the function is declared somewhere, but not defined ?
Since your program does not use fork(), don't use the -f option to
usttrace, and it should fix this problem.
indeed it fixes the problem, sorry to have bothered you with these
usttrace flags problems...i should have read the manual more carefully.
but i still have problem with lttv-gui to open the trace directory
(which looks like this : ~/.usttraces/californium-20100416090024748555759)
"Cannot open trace : maybe you should enter in the trace directory to
select it ?"
however, there is no missing file, nor empty directory, but i can't see
the events i'm supposed to see in lttv-gui...
when ran with usttrace (with no additionnal option), a simple program
like this one produces empty ustd.log and app.log, and no subdir in the
trace directory.
#include <ust/marker.h>
int main(int argc, char **argv)
{
int v = 42;
/* a marker: */
trace_mark(main, myevent, "firstarg %d ", v);
/* a marker without arguments: */
trace_mark(main, myotherevent, MARK_NOARGS);
return 0;
}
Thanks
Sylvain
Thanks for these detailed reports, it's giving me ideas about how to
make error messages more comprehensible.
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