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Diffstat (limited to 'gprof/TODO')
| -rw-r--r-- | gprof/TODO | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/gprof/TODO b/gprof/TODO new file mode 100644 index 0000000..20111c6 --- /dev/null +++ b/gprof/TODO @@ -0,0 +1,72 @@ + +- gmon_io.c cannot deal with target architecture that have a pointer size + that is different from the host architectures pointer size---fix this + (gmon_out.h, and gmon_io.c) +- 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 |