gprof: get empty output

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.

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