Rollback trunk to 3.21.15.

src/platform-solaris.cc

 // Copyright 2012 the V8 project authors. 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
@@ skipping 193 matching lines @@
                  "%s'0x%p [0x%p]",
                  info.dli_fname,
                  pc - reinterpret_cast<uintptr_t>(info.dli_fbase),
                  pc);
   }
   walker->index++;
   return 0;
 }
 
 
+int OS::StackWalk(Vector<OS::StackFrame> frames) {
+  ucontext_t ctx;
+  struct StackWalker walker = { frames, 0 };
+
+  if (getcontext(&ctx) < 0) return kStackWalkError;
+
+  if (!walkcontext(&ctx, StackWalkCallback, &walker)) {
+    return kStackWalkError;
+  }
+
+  return walker.index;
+}
+
+
 // Constants used for mmap.
 static const int kMmapFd = -1;
 static const int kMmapFdOffset = 0;
 
 
 VirtualMemory::VirtualMemory() : address_(NULL), size_(0) { }
 
 
 VirtualMemory::VirtualMemory(size_t size)
     : address_(ReserveRegion(size)), size_(size) { }
@@ skipping 117 matching lines @@
   return munmap(base, size) == 0;
 }
 
 
 bool VirtualMemory::HasLazyCommits() {
   // TODO(alph): implement for the platform.
   return false;
 }
 
 } }  // namespace v8::internal