Backtracing through eh_frame section is more effective allowing to reuse
ebp register for other purposes within routine. GCC with turned on
optimizations (-O1 and above) implicitly defines -fomit-frame-pointer
anyway. eh_frame sections are generated by default with GCC on any
optimization level.
This change implements remote unwinding (separate process unwinding).
Local unwinding is already implemented through _Unwind_Backtrace call
which is implemented in libgcc.
Change-Id: I1aea1ecd19c21710f9cf5f05dc272fc51b67b7aa
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
Supports collecting the stack trace of the current thread,
another thread in the same process, or a thread in a
different process (using ptrace).
Change-Id: Ica2594e4436edde4ceb7bcc3d78e6c31a7902cbf