Introduce libunwind get stack trace, cost is negligible and has line numbers.
use StackTraceCache, PHDRCache speed up, is customizable and has some optimizations.
Other stack trace tools remain: glog, boost, glibc, in case for need.
TODO:
currently support linux __x86_64__, __arm__, __powerpc__, not supported __FreeBSD__, APPLE
Note: __arm__, __powerpc__ not been verified
Support signal handle
libunwid support unw_backtrace for jemalloc
Use of undefined compile option USE_MUSL for later
* Reduce UT binary size
Almost every module depend on ExecEnv, and ExecEnv contains all
singleton, which make UT binary contains all object files.
This patch seperate ExecEnv's initial and destory to anthor file to
avoid other file's dependence. And status.cc include debug_util.h which
depend tuple.h tuple_row.h, and I move get_stack_trace() to
stack_util.cpp to reduce status.cc's dependence.
I add USE_RTTI=1 to build rocksdb to avoid linking librocksdb.a
Issue: #292
* Update
