[google] Modification of gcov pmu format to reduce gcda size bloat (issue 6427063)

[davidxl@google.com]

http://codereview.appspot.com/6427063/diff/11002/gcc/gcov-io.h
File gcc/gcov-io.h (right):

http://codereview.appspot.com/6427063/diff/11002/gcc/gcov-io.h#newcode688
gcc/gcov-io.h:688: gcov_unsigned_t index;   /* The corresponding string
table index */
Is this field necessary?

http://codereview.appspot.com/6427063/diff/11002/gcc/gcov-io.h#newcode689
gcc/gcov-io.h:689: char* filename;          /* The filename that belongs
at this index */
Can this field name be generalized?

http://codereview.appspot.com/6427063/diff/11002/libgcc/pmu-profile.c
File libgcc/pmu-profile.c (right):

http://codereview.appspot.com/6427063/diff/11002/libgcc/pmu-profile.c#newcode83
libgcc/pmu-profile.c:83:
Who is the caller to this interface?

It should be declared in gcov-io.h

http://codereview.appspot.com/6427063/