Experiment for updating the tcmalloc chromium branch to r144 (gperftools 2.0).

third_party/tcmalloc/chromium/src/google/stacktrace.h

Index: third_party/tcmalloc/chromium/src/google/stacktrace.h
diff --git a/third_party/tcmalloc/chromium/src/google/stacktrace.h b/third_party/tcmalloc/chromium/src/google/stacktrace.h
index fd186d63a1bbc6ad6f4554bfba1f3cb870f6e032..eb761cab4e0a43af1ea67f8744819a2618735a79 100644
--- a/third_party/tcmalloc/chromium/src/google/stacktrace.h
+++ b/third_party/tcmalloc/chromium/src/google/stacktrace.h
@@ -27,90 +27,7 @@
 // (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: Sanjay Ghemawat
-//
-// Routines to extract the current stack trace.  These functions are
-// thread-safe.
-
-#ifndef GOOGLE_STACKTRACE_H_
-#define GOOGLE_STACKTRACE_H_
-
-// Annoying stuff for windows -- makes sure clients can import these functions
-#ifndef PERFTOOLS_DLL_DECL
-# ifdef _WIN32
-#   define PERFTOOLS_DLL_DECL  __declspec(dllimport)
-# else
-#   define PERFTOOLS_DLL_DECL
-# endif
-#endif
-
-
-// Skips the most recent "skip_count" stack frames (also skips the
-// frame generated for the "GetStackFrames" routine itself), and then
-// records the pc values for up to the next "max_depth" frames in
-// "result", and the corresponding stack frame sizes in "sizes".
-// Returns the number of values recorded in "result"/"sizes".
-//
-// Example:
-//      main() { foo(); }
-//      foo() { bar(); }
-//      bar() {
-//        void* result[10];
-//        int sizes[10];
-//        int depth = GetStackFrames(result, sizes, 10, 1);
-//      }
-//
-// The GetStackFrames call will skip the frame for "bar".  It will
-// return 2 and will produce pc values that map to the following
-// procedures:
-//      result[0]       foo
-//      result[1]       main
-// (Actually, there may be a few more entries after "main" to account for
-// startup procedures.)
-// And corresponding stack frame sizes will also be recorded:
-//    sizes[0]       16
-//    sizes[1]       16
-// (Stack frame sizes of 16 above are just for illustration purposes.)
-// Stack frame sizes of 0 or less indicate that those frame sizes couldn't
-// be identified.
-//
-// This routine may return fewer stack frame entries than are
-// available. Also note that "result" and "sizes" must both be non-NULL.
-extern PERFTOOLS_DLL_DECL int GetStackFrames(void** result, int* sizes, int max_depth,
-                          int skip_count);
-
-// Same as above, but to be used from a signal handler. The "uc" parameter
-// should be the pointer to ucontext_t which was passed as the 3rd parameter
-// to sa_sigaction signal handler. It may help the unwinder to get a
-// better stack trace under certain conditions. The "uc" may safely be NULL.
-extern PERFTOOLS_DLL_DECL int GetStackFramesWithContext(void** result, int* sizes, int max_depth,
-                                     int skip_count, const void *uc);
-
-// This is similar to the GetStackFrames routine, except that it returns
-// the stack trace only, and not the stack frame sizes as well.
-// Example:
-//      main() { foo(); }
-//      foo() { bar(); }
-//      bar() {
-//        void* result[10];
-//        int depth = GetStackTrace(result, 10, 1);
-//      }
-//
-// This produces:
-//      result[0]       foo
-//      result[1]       main
-//           ....       ...
-//
-// "result" must not be NULL.
-extern PERFTOOLS_DLL_DECL int GetStackTrace(void** result, int max_depth,
-                                            int skip_count);
-
-// Same as above, but to be used from a signal handler. The "uc" parameter
-// should be the pointer to ucontext_t which was passed as the 3rd parameter
-// to sa_sigaction signal handler. It may help the unwinder to get a
-// better stack trace under certain conditions. The "uc" may safely be NULL.
-extern PERFTOOLS_DLL_DECL int GetStackTraceWithContext(void** result, int max_depth,
-                                    int skip_count, const void *uc);
-
-#endif /* GOOGLE_STACKTRACE_H_ */
+/* The code has moved to gperftools/.  Use that include-directory for
+ * new code.
+ */
+#include <gperftools/stacktrace.h>