Move GLog/GFlags to extern/

This is where the libraries belongs to actually, they are not only used by
Libmv now, but also by tests and Cycles.

1 files changed, 0 insertions, 130 deletions

diff --git a/extern/libmv/third_party/glog/src/stacktrace_powerpc-inl.h b/extern/libmv/third_party/glog/src/stacktrace_powerpc-inl.h
deleted file mode 100644
index 1090ddedbc7..00000000000
--- a/extern/libmv/third_party/glog/src/stacktrace_powerpc-inl.h
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright (c) 2007, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Author: Craig Silverstein
-//
-// Produce stack trace.  I'm guessing (hoping!) the code is much like
-// for x86.  For apple machines, at least, it seems to be; see
-//    http://developer.apple.com/documentation/mac/runtimehtml/RTArch-59.html
-//    http://www.linux-foundation.org/spec/ELF/ppc64/PPC-elf64abi-1.9.html#STACK
-// Linux has similar code: http://patchwork.ozlabs.org/linuxppc/patch?id=8882
-
-#include <stdio.h>
-#include <stdint.h>   // for uintptr_t
-#include "stacktrace.h"
-
-_START_GOOGLE_NAMESPACE_
-
-// Given a pointer to a stack frame, locate and return the calling
-// stackframe, or return NULL if no stackframe can be found. Perform sanity
-// checks (the strictness of which is controlled by the boolean parameter
-// "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned.
-template<bool STRICT_UNWINDING>
-static void **NextStackFrame(void **old_sp) {
-  void **new_sp = (void **) *old_sp;
-
-  // Check that the transition from frame pointer old_sp to frame
-  // pointer new_sp isn't clearly bogus
-  if (STRICT_UNWINDING) {
-    // With the stack growing downwards, older stack frame must be
-    // at a greater address that the current one.
-    if (new_sp <= old_sp) return NULL;
-    // Assume stack frames larger than 100,000 bytes are bogus.
-    if ((uintptr_t)new_sp - (uintptr_t)old_sp > 100000) return NULL;
-  } else {
-    // In the non-strict mode, allow discontiguous stack frames.
-    // (alternate-signal-stacks for example).
-    if (new_sp == old_sp) return NULL;
-    // And allow frames upto about 1MB.
-    if ((new_sp > old_sp)
-        && ((uintptr_t)new_sp - (uintptr_t)old_sp > 1000000)) return NULL;
-  }
-  if ((uintptr_t)new_sp & (sizeof(void *) - 1)) return NULL;
-  return new_sp;
-}
-
-// This ensures that GetStackTrace stes up the Link Register properly.
-void StacktracePowerPCDummyFunction() __attribute__((noinline));
-void StacktracePowerPCDummyFunction() { __asm__ volatile(""); }
-
-// If you change this function, also change GetStackFrames below.
-int GetStackTrace(void** result, int max_depth, int skip_count) {
-  void **sp;
-  // Apple OS X uses an old version of gnu as -- both Darwin 7.9.0 (Panther)
-  // and Darwin 8.8.1 (Tiger) use as 1.38.  This means we have to use a
-  // different asm syntax.  I don't know quite the best way to discriminate
-  // systems using the old as from the new one; I've gone with __APPLE__.
-#ifdef __APPLE__
-  __asm__ volatile ("mr %0,r1" : "=r" (sp));
-#else
-  __asm__ volatile ("mr %0,1" : "=r" (sp));
-#endif
-
-  // On PowerPC, the "Link Register" or "Link Record" (LR), is a stack
-  // entry that holds the return address of the subroutine call (what
-  // instruction we run after our function finishes).  This is the
-  // same as the stack-pointer of our parent routine, which is what we
-  // want here.  While the compiler will always(?) set up LR for
-  // subroutine calls, it may not for leaf functions (such as this one).
-  // This routine forces the compiler (at least gcc) to push it anyway.
-  StacktracePowerPCDummyFunction();
-
-  // The LR save area is used by the callee, so the top entry is bogus.
-  skip_count++;
-
-  int n = 0;
-  while (sp && n < max_depth) {
-    if (skip_count > 0) {
-      skip_count--;
-    } else {
-      // PowerPC has 3 main ABIs, which say where in the stack the
-      // Link Register is.  For DARWIN and AIX (used by apple and
-      // linux ppc64), it's in sp[2].  For SYSV (used by linux ppc),
-      // it's in sp[1].
-#if defined(_CALL_AIX) || defined(_CALL_DARWIN)
-      result[n++] = *(sp+2);
-#elif defined(_CALL_SYSV)
-      result[n++] = *(sp+1);
-#elif defined(__APPLE__) || (defined(__linux) && defined(__PPC64__))
-      // This check is in case the compiler doesn't define _CALL_AIX/etc.
-      result[n++] = *(sp+2);
-#elif defined(__linux)
-      // This check is in case the compiler doesn't define _CALL_SYSV.
-      result[n++] = *(sp+1);
-#else
-#error Need to specify the PPC ABI for your archiecture.
-#endif
-    }
-    // Use strict unwinding rules.
-    sp = NextStackFrame<true>(sp);
-  }
-  return n;
-}
-
-_END_GOOGLE_NAMESPACE_