libc/sysdeps/s390 s390-32/backtrace.c s390-64/ ...

[drepper@sources.redhat.com]

CVSROOT:	/cvs/glibc
Module name:	libc
Changes by:	drepper@sourceware.org	2003-12-06 00:13:24

Modified files:
	sysdeps/s390/s390-32: backtrace.c 
	sysdeps/s390/s390-64: backtrace.c 

Log message:
	(trace_arg): New structure.
	(unwind_backtrace, unwind_getip): New variables.
	(init, __backchain_backtrace, backtrace_helper): New functions.
	(__backtrace): Use unwind info for backtrace instead of backchain
	walking if the unwind functions can be found.