[Bug 1678510] Re: gprof: get empty output

[Paul Smith]

Oops, this problem still occurs with glibc 2.27, my mistake.

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Title:
  gprof: get empty output

Status in gcc-5 package in Ubuntu:
  Confirmed
Status in gcc-6 package in Ubuntu:
  Confirmed
Status in gcc-7 package in Ubuntu:
  New

Bug description:
  OS: Ubuntu 16.10 x64.
  Version: GNU gprof (GNU Binutils for Ubuntu) 2.27

  Steps:
  gcc tst.c -g -pg -o tst
  ./tst # produced gmon.out file
  gprof ./tst

  *************************Output****************************
  Flat profile:

  Each sample counts as 0.01 seconds.
   no time accumulated

    %   cumulative   self              self     total           
   time   seconds   seconds    calls  Ts/call  Ts/call  name    

   %         the percentage of the total running time of the
  time       program used by this function.

  cumulative a running sum of the number of seconds accounted
   seconds   for by this function and those listed above it.

   self      the number of seconds accounted for by this
  seconds    function alone.  This is the major sort for this
             listing.

  calls      the number of times this function was invoked, if
             this function is profiled, else blank.

   self      the average number of milliseconds spent in this
  ms/call    function per call, if this function is profiled,
  	   else blank.

   total     the average number of milliseconds spent in this
  ms/call    function and its descendents per call, if this
  	   function is profiled, else blank.

  name       the name of the function.  This is the minor sort
             for this listing. The index shows the location of
  	   the function in the gprof listing. If the index is
  	   in parenthesis it shows where it would appear in
  	   the gprof listing if it were to be printed.

  
  Copyright (C) 2012-2016 Free Software Foundation, Inc.

  Copying and distribution of this file, with or without modification,
  are permitted in any medium without royalty provided the copyright
  notice and this notice are preserved.

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