Remove stacktrace.cc.

git-svn-id: https://google-glog.googlecode.com/svn/trunk@17 eb4d4688-79bd-11dd-afb4-1d65580434c0

src/stacktrace.cc

-// Copyright 2000 - 2007 Google Inc.
-// All rights reserved.
-//
-// Produce stack trace.
-//
-// There are three different ways we can try to get the stack trace:
-//
-// 1) Our hand-coded stack-unwinder.  This depends on a certain stack
-//    layout, which is used by gcc (and those systems using a
-//    gcc-compatible ABI) on x86 systems, at least since gcc 2.95.
-//    It uses the frame pointer to do its work.
-//
-// 2) The libunwind library.  This is still in development, and as a
-//    separate library adds a new dependency, abut doesn't need a frame
-//    pointer.  It also doesn't call malloc.
-//
-// 3) The gdb unwinder -- also the one used by the c++ exception code.
-//    It's obviously well-tested, but has a fatal flaw: it can call
-//    malloc() from the unwinder.  This is a problem because we're
-//    trying to use the unwinder to instrument malloc().
-//
-// Note: if you add a new implementation here, make sure it works
-// correctly when GetStackTrace() is called with max_depth == 0.
-// Some code may do that.
-
-#include "config.h"
-
-// First, the i386 case.
-#if defined(__i386__) && __GNUC__ >= 2
-# if defined(HAVE_EXECINFO_H)
-#   include "stacktrace_generic-inl.h"
-# elif !defined(NO_FRAME_POINTER)
-#   include "stacktrace_x86-inl.h"
-# endif
-
-// Now, the x86_64 case.
-#elif defined(__x86_64__) && __GNUC__ >= 2
-# if defined(HAVE_EXECINFO_H)
-#   include "stacktrace_generic-inl.h"
-# elif !defined(NO_FRAME_POINTER)
-#   include "stacktrace_x86-inl.h"
-# elif 1
-    // This is the unwinder used by gdb, which can call malloc (see above).
-#   include "stacktrace_x86_64-inl.h"
-# elif 0     // We assume libunwind is installed on this machine
-    // Use the libunwind library.
-    // There's no way to enable it except for manually
-    // editing this file (by replacing this "elif 0" with "elif 1", e.g.).
-#   define UNW_LOCAL_ONLY
-#   include "stacktrace_libunwind-inl.h"
-# elif defined(__linux)
-#   error Cannnot calculate stack trace: need either libunwind or frame-pointers
-# else
-#   error Cannnot calculate stack trace: need libunwind
-# endif
-
-// The PowerPC case
-#elif (defined(__ppc__) || defined(__PPC__)) && __GNUC__ >= 2
-# if defined(HAVE_EXECINFO_H)
-#   include "stacktrace_generic-inl.h"
-# elif defined(STACKTRACE_WITH_FRAME_POINTER)
-#   include "stacktrace_powerpc-inl.h"
-# endif
-
-// OK, those are all the processors we know how to deal with.
-#else
-# error Cannot calculate stack trace: will need to write for your environment
-#endif