Subversion Repositories openrisc_me

- add support for prof file format so that prof files can be displayed

  at the line-level (this is useful for the uprofile tool under DEC's

  OSF/1)

- take a hard look at --file-ordering (broken) and --function-ordering

+ documentation

+ optimize bfd_find_nearest_line_num() (or replace by different interface)

+ cleanup _bfd_ecoff_find_nearest_line_num() fixes & description

+ ensure "cc -pg" produces good files under OSF/1 v3.0

+ make sure gprof works together with OSF/1 v3.0's profiling libraries

+ implement symtab_parse(); modify sym_lookup() to consider addr_high

+ change gprof.c to collect lists, then invoke symtab_parse() for

  each list

+ Questions:

        o is -c (--static-call-graph) useful at all?  i can't see

          how; if it were deleted, gprof would be completely machine

          independent => yup, it is

        o are (long) option names appropriate?

        o -k (--exclude-arc) cannot be implemented with getopt();

          is new syntax (-k from/to) acceptable?  If not, how to

          fix it?

        o in the FSF output, the call-graph index now prints

          the filename of static functions in parentheses; e.g.,

          static function foo() that is defined in file bar.c

          would be printed as:

                        [4] foo (bar.c)

          is this acceptable?  should it be done only optionally?

        o symbols with addresses that map back to a different

          name are suppressed (happens with labels, for example);

          is this acceptable?  should it be done only optionally?

+ generalize to allow arbitrary histograms (not just time histograms)

+ basic-block information currently replaces all symbols created from

  the core because of an ugly ordering conflict---for now, the current

  solution works, but something cleaner is desirable ==> cleaned up,

  but it's slower now

+ convert to very new file format (back to trivial format, that is :)

+ replace "dummy.h" for Alpha (if there is any use to it)

+ add support for execution time profiling at a basic-block level

+ fix filename-off-by-one bug for Alpha (see ~/tmp/d.[ch])---no longer

  relevant

+ "-pg -a" doesn't work as expected because mcleanup() will overwrite

  the file generated by __bb_exit_func() (or vice versa)

+ first basic-block of fac() seems to get credited to last basic-block

  of previous function => bug in basic_blocks.c

+ flat profile should provide automatic scaling for per-call times because

  otherwise they'll always be zero on a fast machine with tons of small

  functions

+ make "-a" imply to retain line number info (without actually generating

  the debugging information (unless -g is specified)---no, this is a

  bad idea, because it is not clear what level of debugging info should

  be requested (e.g., -g vs. -g3); leaving it up to the user seems best

+ add long options support (or at least use getopt instead of ad-hoc

  implementation)

+ split into files according to abstract objects that are manipulated

+ replace sccsid by rcsid & add "end of ..." to every .c file

+ use DBG() everywhere

+ fix spacing (" ," -> "," etc.)

+ use DEFUNs everywhere

+ make compile cleanly with -Wall

+ "gcc -pg -O2" doesn't work on tecc.c unless -fno-omit-frame-pointer is

  specified; find out why

+ make things portable (prototypes, const, etc.)

+ if NEW_GMON_OUT is not defined, have a flag that will allow to

  read new gmon.out style files.  The idea being that everyone

  will use the new format for basic-block style profiling but

  the old format for regular gpprofiling