gprof/ChangeLog

   1 Thu Jul  4 12:01:42 1996  Ian Lance Taylor  <ian@cygnus.com>
   2
   3         * gprof.c (VERSION): Define as "2.7.1".
   4
   5         * Released binutils 2.7.
   6
   7         * bb_exit_func.c: Rename from __bb_exit_func.c, so that it can be
   8         stored on a System V file system.
   9
  10 Thu Jun 27 11:36:22 1996  Ian Lance Taylor  <ian@cygnus.com>
  11
  12         * configure.in: Call AC_ISC_POSIX.
  13         * configure: Rebuild.
  14         * Makefile.in (gprof): Pass $(CFLAGS) during link.
  15         * hertz.c: Don't include <sys/time.h>; let sysdep.h handle that.
  16         If HAVE_SETITIMER is not defined, try using sysconf.
  17
  18 Mon Jun 24 18:27:28 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
  19
  20         * Makefile.in (exec_prefix, bindir, libdir, mandir, infodir, datadir,
  21         INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
  22         * configure.in (AC_PREREQ): autoconf 2.5 or higher.
  23         (AC_PROG_INSTALL): added.
  24         * configure: Rebuilt.
  25
  26 Mon Jun 24 12:03:09 1996  Ian Lance Taylor  <ian@cygnus.com>
  27
  28         * configure.in: On alpha*-*-osf*, link against libbfd.a if not
  29         using shared libraries.
  30         * configure: Rebuild with autoconf 2.10.
  31
  32 Tue Jun 18 17:35:58 1996  Ian Lance Taylor  <ian@cygnus.com>
  33
  34         * core.c (core_create_line_syms): Use xstrdup rather than strdup.
  35         * source.c (source_file_lookup_path): Likewise.
  36
  37 Mon Apr  8 14:44:33 1996  Ian Lance Taylor  <ian@cygnus.com>
  38
  39         * configure.in: Permit --enable-shared to specify a list of
  40         directories.
  41         * configure: Rebuild.
  42
  43 Thu Mar 21 17:18:25 1996  Ian Lance Taylor  <ian@cygnus.com>
  44
  45         * core.c (core_create_function_syms): Move filename and func_name
  46         inside ifdef where they are used.
  47
  48         * core.c (core_sym_class): Parenthesize && within ||.
  49         * symtab.c (symtab_finalize): Correct parenthesization.
  50
  51         * cg_print.h (cg_print_file_ordering): Declare.
  52         (cg_print_function_ordering): Declare.
  53
  54         * __bb_exit_func.c (__bb_exit_func): Replace bcopy with memcpy.
  55         * cg_arcs.c (arc_add): Likewise.
  56         * cg_print.c (cg_print_function_ordering): Likewise.
  57
  58 Thu Mar 21 17:02:02 1996  David Mosberger-Tang  <davidm@azstarnet.com>
  59
  60         * gprof.c (default_excluded_list): Add "__mcount".
  61
  62         * gprof.c (main): Change ifdef __osf__ to __alpha__.
  63
  64         * gmon_io.c (gmon_out_read): If BSD44_FORMAT is defined, get the
  65         profiling rate from the header.
  66
  67         * gmon.h (struct raw_phdr): Only include pad if both __alpha__ and
  68         __osf__ are defined.  Add new fields if BSD44_FORMAT is defined.
  69
  70         * alpha.h (MIN_INSN_SIZE): Define.
  71         * core.c (MIN_INSN_SIZE): If not defined, define as 1.
  72         (core_sym_class): Ignore debugging symbols.
  73         (core_create_line_syms): Use MIN_INSN_SIZE when gathering line
  74         information.
  75
  76 Wed Mar 20 18:15:47 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
  77
  78         * cg_print.c (cg_print_function_ordering): Fix __GNUC__ misspelled
  79         as __GNU_C__.
  80         (order_and_dump_functions_by_arcs): Likewise.
  81
  82 Tue Mar 12 12:19:50 1996  Ian Lance Taylor  <ian@cygnus.com>
  83
  84         * configure: Rebuild with autoconf 2.8.
  85
  86 Sun Feb 18 15:06:18 1996  Ian Lance Taylor  <ian@cygnus.com>
  87
  88         * configure.in: Check for 'do not mix' from native linker before
  89         trying to use -rpath.
  90         * configure: Rebuild.
  91
  92 Tue Feb 13 15:32:53 1996  Ian Lance Taylor  <ian@cygnus.com>
  93
  94         * configure.in: Set HDLFLAGS for *-*-hpux with --enable-shared.
  95         * configure: Rebuild.
  96
  97 Wed Feb  7 14:03:17 1996  Ian Lance Taylor  <ian@cygnus.com>
  98
  99         * configure.in: Don't set CC.  Look for --enable-shared.  Set
 100         BFDLIB and HLDFLAGS and substitute them.
 101         * configure: Rebuild.
 102         * Makefile.in (LIBS): Use @BFDLIB@.
 103         (HLDFLAGS): New variable.
 104         (gprof): Use $(HLDFLAGS).
 105
 106 Mon Feb  5 16:34:44 1996  Ian Lance Taylor  <ian@cygnus.com>
 107
 108         Support for building bfd and opcodes as shared libraries, based on
 109         patches from Alan Modra <alan@spri.levels.unisa.edu.au>:
 110         * Makefile.in (LIBDEPS): New variable.
 111         (LIBS): Use -L../bfd -lbfd.
 112         (gprof): Depend upon $(LIBDEPS) rather than $(LIBS).
 113
 114 Sat Dec 30 10:11:03 1995  Jeffrey A Law  (law@cygnus.com)
 115
 116         * gprof.c (long_options): Add "--function-ordering" and
 117         "--file-ordering" options.
 118         (usage): Add new options to usage message.
 119         (main): Handle new options.
 120         * gprof.h (STYLE_FUNCTION_ORDER): Define.
 121         (STYLE_FILE_ORDER): Define.
 122         (function_mapping_file): Declare.
 123         * cg_arcs.c (arcs, numarcs): New globals.
 124         (arc_add): Put new arcs into the arc array so the function/file
 125         ordering code can examine them.
 126         * cg_arcs.h (struct arc): New field "has_been_placed".
 127         (arcs, numarcs): Declare new globals.
 128         * core.c (symbol_map, symbol_map_count): New globals.
 129         (read_function_mappings): New function to read in a function
 130         to object map file.
 131         (core_init): Call read_function_mappings if a function mapping
 132         file exists.
 133         (core_create_function_syms): Handle function to object file
 134         mappings.
 135         * symtab.h (struct sym): New fields "mapped", "has_been_placed",
 136         "nuses", "prev".
 137         * cg_print.c (cmp_arc_count): New function for sorting arcs.
 138         (cmp_fun_nuses): Likewise for functions.
 139         (cg_print_function_ordering): New function to print a suggested
 140         function ordering.
 141         (cg_print_file_ordering): Likewise for ordering .o files.
 142         (order_and_dump_functions_by_arcs): Helper function for function
 143         and object file ordering code.
 144
 145 Sun Dec 24 21:32:27 1995  Jeffrey A Law  (law@cygnus.com)
 146
 147         * core.c (core_sym_class): Ignore symbols without BSF_FUNCTION
 148         set if ignore_non_function is set.
 149         * gprof.h (ignore_non_functions): Declare.
 150         * gprof.c (ignore_non_functions): Define.
 151         (long_options): Add "ignore-non-functions".
 152         (usage): Add new options.
 153         (main): Recognize "-D" and "--ignore-non-functions" option.
 154
 155 Tue Nov 21 13:24:39 1995  Ken Raeburn  <raeburn@cygnus.com>
 156
 157         * Makefile.in (.m.c): Strip out directory name from function
 158         name.
 159
 160         * hist.c (scale_and_align_entries): Don't use DEFUN_VOID.  Do
 161         UNITS_TO_CODE adjustment unconditionally; compiler can optimize
 162         away zero-offset case.  Refer to scaled_addr, not aligned_addr.
 163
 164         * vax.c: Don't include vax.h here.
 165
 166 Thu Nov 16 03:41:37 1995  Ken Raeburn  <raeburn@cygnus.com>
 167
 168         Version 2.6 released.
 169
 170 Wed Nov  8 11:40:04 1995  Ian Lance Taylor  <ian@cygnus.com>
 171
 172         * gprof.c (main): Cast getenv return value.
 173
 174 Mon Nov  6 15:05:00 1995  Ken Raeburn  <raeburn@cygnus.com>
 175
 176         * Makefile.in (TAGS): New target.
 177
 178 Wed Nov  1 12:51:21 1995  Per Bothner  <bothner@kalessin.cygnus.com>
 179
 180         * Makefile.in (DISTSTUFF):  Rename to GEN_FILES, to avoid confusion.
 181         (all):  Depend on $(GEN_FILES), not diststuff (which also depends
 182         on info).
 183
 184 Wed Nov  1 15:23:15 1995  Manfred Hollstein KS/EF4A 60/1F/110 #40283  <manfred@lts.sel.alcatel.de>
 185
 186         * sym_ids.c: Include <ctype.h>.
 187
 188 Wed Oct 25 13:24:31 1995  Per Bothner  <bothner@kalessin.cygnus.com>
 189
 190         * Makefile.in (diststuff):  Also make info.
 191         (mostlyclean):  Don't remove gprof.info*.
 192         (maintainer-clean realclean):  Also remove *.info*.
 193
 194 Fri Oct  6 16:25:32 1995  Ken Raeburn  <raeburn@cygnus.com>
 195
 196         Mon Sep 25 22:49:32 1995  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
 197
 198         * Makefile.in: Add dependecies for $(OBJS) on header files.
 199
 200         * cg_print.c (print_cycle, print_members, cg_print_index): Fix new
 201         style output format to make it consistent.
 202         * dummy.c (find_call): Fix typo in error message.
 203
 204 Wed Sep 20 13:21:02 1995  Ian Lance Taylor  <ian@cygnus.com>
 205
 206         * Makefile.in (maintainer-clean): New target, synonym for
 207         realclean.
 208
 209 Fri Sep  8 14:38:08 1995  Ian Lance Taylor  <ian@cygnus.com>
 210
 211         * Makefile.in (install): Don't install in $(tooldir).
 212
 213 Fri Aug 25 15:30:05 1995  Ken Raeburn  <raeburn@cygnus.com>
 214
 215         NS32K changes from Ian Dall:
 216         * configure.in: Use ns32k, not ns532.
 217         * ns532.c: Include symtab.h.
 218         (find_call): Renamed from findcall.  Print a message.
 219         * ns532.h: Remove dummy.h comments.
 220
 221 Tue Aug 22 10:00:45 1995  Jeffrey A. Law  <law@rtl.cygnus.com>
 222
 223         * Makefile.in (install): Remove "brokensed" hack, unnecessary now
 224         that we're using autoconf.
 225
 226 Wed Jul 19 18:46:13 1995  Fred Fish  <fnf@cygnus.com>
 227
 228         * core.c (get_src_info): Cast arg 7 of bfd_find_nearest_line
 229         to proper type of "unsigned int *".
 230
 231 Fri Jun 16 15:29:36 1995  Ken Raeburn  <raeburn@cujo.cygnus.com>
 232
 233         * configure.in: Use changequote around use of [].
 234
 235 Mon Jun 12 12:14:52 1995  J.T. Conklin  <jtc@rtl.cygnus.com>
 236
 237         * Makefile.in (distclean, realclean): Remove config.cache and
 238           config.log.
 239
 240 Wed May 17 17:56:53 1995  J.T. Conklin  <jtc@rtl.cygnus.com>
 241
 242         * Makefile.in (Makefile): Added config.status to dependency list.
 243           (config.status): New target.
 244           (SHELL): New definition.
 245
 246 Tue Apr 25 21:11:12 1995  Ken Raeburn  <raeburn@cujo.cygnus.com>
 247
 248         * Makefile.in (install): Depend on "all".
 249
 250 Thu Apr 20 17:29:07 1995  Ken Raeburn  <raeburn@cujo.cygnus.com>
 251
 252         * Makefile.in: Change all references to MY_MACHINE to MY_TARGET,
 253         to match configure script.
 254
 255 Wed Apr 19 11:19:37 1995  J.T. Conklin  <jtc@rtl.cygnus.com>
 256
 257         * gen-c-prog.awk: Changed reference to "make-c-prog.awk" in
 258           comment emitted by this script to gen-c-prog.awk.
 259
 260         * Makefile.in, configure.in: Converted to use autoconf.
 261         * configure: New file, generated with autoconf 2.3.
 262         * config/{mt-alpha, mt-dummy, mt-i386, mt-ns532, mt-sparc,
 263           mt-tahoe, mt-vax}: Removed.
 264
 265 Mon Mar 13 21:44:24 1995  Ken Raeburn  <raeburn@cujo.cygnus.com>
 266
 267         * __bb_exit_func.c: New file, from David Mosberger-Tang.
 268
 269         Thu Feb  9 16:56:07 1995  David Mosberger-Tang  <davidm@piston.cs.arizona.edu>
 270
 271         * All *.c: More cleanup towards GNU format.
 272
 273         * gmon_out.h (struct gmon_hist_hdr, struct gmon_cg_arc_record):
 274         replaced sizeof (bfd_vma) by size (char*) because Ken tells me
 275         that bfd_vma is only guaranteed to be at least as big as a pointer.
 276
 277         (GMON_Record_tag): added explicit enumeration values to ensure
 278         compatibility across compilers.
 279
 280         * gmon_io.c (get_vma, put_vma): replaced sizeof(bfd_vma) by
 281         sizeof(char*).
 282
 283 Tue Feb  7 17:24:12 1995  Ken Raeburn  <raeburn@cujo.cygnus.com>
 284
 285         * All *.c and *.h files: Ran "indent -gnu".  Cleaned up a couple
 286         of constructs GNU indent couldn't handle.  Block comments not yet
 287         rewritten in GNU format.
 288
 289         * gprof.c (VERSION): Changed to 2.6, to get in sync for next
 290         binutils release.
 291
 292 Sun Feb  5 16:19:46 1995  David Mosberger-Tang  <davidm@piston.cs.arizona.edu>
 293
 294         * symtab.c (symtab_finalize): ensure globals symbols really
 295         are favored over static ones---even if their name looks less
 296         preferable; this is important for HP-UX; for example, there
 297         is a static label Ltext_something that aliases the global
 298         symbol _start
 299
 300         * hist.c (hist_print): auto-scaling is now in effect for FSF-style
 301         output only; also, auto-scaling is now performed based on
 302         per-call, rather than total execution time, which is what it was
 303         meant to be.
 304
 305         * gprof.h (File_Format): new type.
 306
 307         * gprof.c (VERSION): upped to 2.7---seems to be completely out of
 308         sync with Cygnus version numbers though...
 309
 310         (long_options): renamed --gmon-info to --file-info, --width added,
 311         renamed --old-file-format to --file-format
 312         (main): dito; also added support to read prof files, but as
 313         mon_out_read() is not implemented, it's #ifdef'd out for now
 314
 315         (usage): update to reflect new options.
 316
 317         * gmon_io.c: replaced "old_file_format" by more general
 318         "file_format" option
 319
 320         * gmon.h (struct raw_phdr): fixed declaration for OSF/1.
 321
 322         * core.c (core_sym_class): added back check for __gnu_compiled and
 323         ___gnu_compiled for the benefit of systems without
 324         bfd_find_nearest_line() support
 325
 326         (get_src_info): now the libbfd is fixed, invoke bfd_find_nearest_line()
 327         with section-relative addresses
 328
 329         (core_create_function_syms): get_src_info() calls are currently
 330         enabled for OSF/1 only.  It appears to work allright for SunOS
 331         4.1.x as well, but on SPARCs it gets painfully slow with the
 332         current implementation of aout_32_find_nearest_line();
 333         unfortunately, this means that static functions will not have their
 334         filename printed in the call-graph function index; line-level
 335         profiling should still work, but requires some patience
 336
 337         * cg_print.c (cg_print_index): sanitized printing of index when
 338         using FSF-style output; in particular, output width is now controlled
 339         via option --width and the function tries hard to keep columns
 340         aligned even in the presence of (occasional) long names
 341
 342         * NOTES: a first shot at updating the documentation.
 343
 344 Wed Feb  1 19:07:44 1995  David Mosberger-Tang  <davidm@piston.cs.arizona.edu>
 345
 346         * core.c (core_create_function_syms): fixed computation of min_vma
 347         and max_vma.
 348
 349         * *.c: removed rcsid.
 350
 351 Tue Jan 31 16:18:18 1995  Ken Raeburn  <raeburn@cujo.cygnus.com>
 352
 353         * Lots of changes from David Mosberger-Tang:
 354
 355         Tue Oct 25 19:20:14 1994  David Mosberger-Tang  <davidm@piston.cs.arizona.edu>
 356
 357         * gprof.c (main): put parentheses around & within &&.
 358
 359         * basic_blocks.c (bb_read_rec): print warning message (once) when
 360         ignoring basic-block execution counts.
 361
 362         * source.c (source_file_lookup_name): corrected second argument to
 363         strcmp().
 364
 365         * hist.c (print_header): merged Fri Oct 21 18:58:02 1994 change by
 366         Ken Raeburn <raeburn@cujo.cygnus.com> from binutils-2.5.1.
 367
 368         * gmon_io.c (gmon_out_read): the output stule STYLE_GMON_INFO is now
 369         supported both for old and new (versioned) gmon.out files.  Old
 370         files are identified as version 0.
 371
 372         * gmon.h (struct raw_arc): count field is now sizeof(long) bytes
 373         long (instead of 4) because that is what OSF/1 v3.0 uses.
 374
 375         * core.c: minor fixes and debugging info changes.
 376
 377         Sun Sep 11 18:47:47 1994  David Mosberger-Tang  (davidm@piston.cs.arizona.edu)
 378
 379         * core.c (core_init): if .text cannot be found, try $CODE$ (the
 380         name of the text-section under HP-UX).
 381
 382         * hist.c (hist_assign_samples): fixed off-by-one bug: highpc
 383         points one past the last sampling bin, so hist_scale should be
 384         computed as "hist_scale /= hist_num_bins", not "hist_scale /=
 385         hist_num_bins - 1".
 386
 387         * gmon_io.c, hist.c, hist.h: renamed hist_num_samples to
 388         hist_num_bins.
 389
 390         * configure.in: added alpha-*-*) for per-target config.
 391
 392         * alpha.c, alpha.h: created.
 393
 394         * gprof.c (default_excluded_list): <locore>, <hicore> added.
 395
 396         * core.c (core_create_function_syms, core_create_line_syms):
 397         explicitly keep two sentinels "<locore>" and "<hicore>" that catch
 398         all addresses outside the text-space.  Thus, sym_lookup(&symtab,
 399         addr) continues to guarantee not to return 0 on any address.  It
 400         also avoids incorrectly crediting the first/last symbol in the
 401         text-space.
 402
 403         * core.c (core_create_line_syms): always create function symbols
 404         first, then merge in line symbols; this is so that if parts of the
 405         program were compiled without -g, function-level symbols are
 406         available still.
 407
 408         * utils.c (print_name_only): support for print_path added.
 409
 410         * symtab.c (cmp_addr): also use is_func flag in comparison.
 411         (symtab_finalize): return immediately when table empty; now
 412         more careful about getting rid of the right duplicate symbol.
 413
 414         * sparc.c (find_call): many fixes---this function was rather
 415         botched in binutils-2.4 already; it should work again.
 416
 417         * source.c (source_file_lookup_path): PATH is now strdup'ed (it is
 418         not good to rely on get_src_info() to return distinct string
 419         pointers).
 420
 421         * search_list.c (search_list_append): added cast for xmalloc().
 422
 423         * hist.c: added explicit initialization to some of the global
 424         variables; fixed SItab (scales were off by a factor of 10).
 425
 426         * hist.h: include of bfd.h added.
 427
 428         * gprof.c, gprof.h (print_path): added.
 429
 430         * gprof.h (MAX): fixed.
 431
 432         * gmon_out.h: renamed gmon_time_hist_hdr to gmon_hist_hdr.
 433
 434         * gmon_io.c: added some casts to (long) so we can always print as %lx
 435
 436         * core.c (core_get_text_space): fixed to make it work.
 437
 438         * cg_print.c (cg_print_index): added support for print_path option.
 439
 440         * cg_dfn.h (cg_dfn): wrap prototype in PARAMS().
 441
 442         * call_graph.c, gmon_io.c, hist.c: avoid taking address of array
 443         as some compilers complain (e.g., DEC's OSF/1 compiler)
 444
 445         * basic_blocks.c, gmon_io.c, hist.c, source.c, sym_ids.c,
 446         symtab.c: calls to memset() had 2nd and 3rd args reversed.
 447
 448         Sat Sep 10 21:53:13 1994  David Mosberger-Tang  (davidm@piston.cs.arizona.edu)
 449
 450         * gprof.c: added "_mcount" to default_excluded_list.
 451         (main): if output_style==0 and there is either a histogram or a
 452         call-graph, always generate flat and call-graph, no matter what
 453         line_granularity is set to.
 454
 455         * source.c (source_file_lookup_name): if searching for sf->name
 456         fails, try again with filename obtained after stripping off any
 457         partial path from sf->name.
 458
 459         * gprof.h (SRCDEBUG): added.
 460
 461         * search_list.c (search_list_append): directories were added in wrong
 462         order.
 463
 464         * reimplemented selection mechanism from ground up; it is now possible
 465         to accurately control what gets included/excluded in each of the
 466         output styles;  a "symbol-specification" (spec) is the basic means
 467         to select a set of symbols; a spec has the syntax:
 468
 469           spec == (FILENAME:(FUNCNAME|LINE_NUM) | NAME).
 470           arc == spec/spec.
 471
 472         any of the terminal symbols can be empty, in which case they
 473         match anything (wildcards).  NAME is interpreted as a FILENAME
 474         if it contains a dot (e.g., foo.c), as LINE_NUM if it starts
 475         with a digit, and as FUNCNAME otherwise.
 476
 477         For example, to get a call-graph display that ignores arcs
 478         from foo() to bar(), you'd say "--no-graph=foo/bar"; to
 479         show only arcs into bar() (no matter what the caller),
 480         you'd say "--graph=/bar"; and to get a call-graph without
 481         any arc info, you'd say "--graph=/";  similarly, to
 482         get a flat profile without mcount, you'd say "--no-flat=mcount"
 483         and to get a flat profile that shows includes all functions
 484         you'd say "--flat=""" (i.e., an empty spec)
 485
 486         * hist.c (hist_print): top_time wasn't initialized to 0.0.
 487
 488         Fri Sep  9 01:10:21 1994  David Mosberger-Tang  (davidm@piston.cs.arizona.edu)
 489
 490         * gmon_out.h: all headers now declared in terms of characters
 491           to avoid getting into trouble with different compilers introducing
 492           different amount of padding; the code already accessed the fields
 493           through bfd functions, so that didn't have to change.
 494
 495         * hist.c (hist_read_rec, hist_write_rec): added support for
 496           collection pc histograms measuring quantities other than time;
 497           the histogram header now includes a field that specifies the
 498           dimension of the quantity measured by the histogram bins
 499           (normally, this is "seconds", but other meaningful dimensions
 500            include such things as "I-cache misses", "instruction issue stalls"
 501            etc.); there is also a field to specify a one-character
 502           abbreviation for the dimension; in the case of time, this would
 503           be 's'; in most other cases it probably would be '1' (not a physical
 504           dimension).
 505
 506         Thu Sep  8 16:05:08 1994  David Mosberger-Tang  (davidm@piston.cs.arizona.edu)
 507
 508         * gprof.c, gmon_io.[ch]: BSD_COMPATIBLE is gone and new_file_version
 509           has become old_file_version; gmon_io.c now always supports old-style
 510           gmon.out files; it first tries to read gmon.out as a new version
 511           file, if that fails, it tries to read it in the old format;
 512           although not very likely, it is possible for gprof to mistake an
 513           old-style file as a new one (the first 4 bytes would have to
 514           be "gmon"---including the trailing '\0'); in that case, it is
 515           necessary to specify --old-file-version
 516
 517         * gprof.h: removed dependency on SYSV; the code now always uses
 518           strrchr(), memset(), and memcpy() and does not include either
 519           of string.h or strings.h; this should make gprof compile on
 520           any (Unix) system without configuration (per suggestion of
 521           raeburn@cygnus.com)
 522
 523         * gprof.c (usage): fixed location of --new-file-format option.
 524
 525         * cg_arcs.c (propagate_flags): fixed typo in declaration.
 526
 527         * flat_bl.m: removed formfeed at end of file; the form-feed
 528           is now printed cg_print.c only when necessary.
 529
 530         * major rewrite of gprof---too many changes to mention all of
 531           them.  new features:
 532
 533         + -l now requests profiling at the line level (as opposed
 534           to function level); in this mode, gprof creates a "symbol"
 535           (aka name-list entry) for each line of source code, instead
 536            of one per function)
 537
 538         + support for a new gmon.out file format; the new format
 539           consists of a header with a magic and a version number,
 540           followed by a sequence of profile data; profile data
 541           can any of: (a) PC histogram, (b) call-graph arcs, or
 542           (c) basic-block execution counts; the version number makes
 543           it possible to extend gmon.out in a backwards compatible
 544           fashion
 545
 546         + support for tcov style annotated output: if the gmon.out file
 547           contains basic-block execution counts, the user can request
 548           the generation of annotated source files, much like Sun's
 549           tcov used to do
 550
 551         + long options
 552
 553         + new scheme to suppress symbols that aren't function names
 554           (e.g., avoids mistaking a goto label as a function)
 555
 556         + reorganized source code to make it more managable; as a
 557           side effect, gprof now compiles cleanly with "gcc -Wall"
 558
 559         Thu Sep  1 15:46:49 1994  David Mosberger-Tang  (davidm@piston.cs.arizona.edu)
 560
 561         * gprof.c (funcsymbol): bfd_find_nearest_line() is now used as a
 562         final cross-check to determine whether a static symbol should be
 563         considered as a function-name.
 564
 565         Fri Aug  5 19:32:36 1994  David Mosberger-Tang  (davidm@piston.cs.arizona.edu)
 566
 567         * gmon_io.c (gmon_out_read): recognize "-" as the filename for
 568         stdin; this is useful if you wanna keep gmon.out files compressed;
 569         this way you can "gzcat" the compressed file into gprof.
 570
 571         * gprof.c: flag_min_count now initialized with 1 instead of 0.
 572
 573         * basic_blocks.c (bb_annotate_source): added support for creating
 574         .tcov files when option flag_annotate_make_files is TRUE.
 575         (annotate_with_count): all counts less than the minimum count
 576         specified by -m are now annotated with hash-marks.
 577
 578         * gprof.c (main): -A is now followed by a string of option chars.
 579
 580         * basic_blocks.c (annotate_with_count): replaced b->count with
 581         cnt.
 582
 583         * source.c: flag_annotate_source replaced by source_lock_map.
 584
 585         * source.h: source_lock_map added.
 586
 587         * gprof.c (main): new command-line syntax: -S simply specifies
 588         which source-files user is interested in; -A requests annotated
 589         source files and -AA requests that all lines in a source file
 590         are annotated.
 591
 592         Thu Aug  4 23:27:03 1994  David Mosberger-Tang  (davidm@piston.cs.arizona.edu)
 593
 594         * basic_blocks.c (PATH_MAX): if undefined, define as 1024.
 595
 596         * sparc.c, i386.c, tahoe.c, vax.c: added include of "time_hist.h"
 597         so s_lowpc etc. get declared.
 598
 599         * arcs.h (doarcs): created.
 600
 601         * arcs.c: reordered static functions such that they get defined
 602         before use.
 603
 604         * gprof.c (main): added options:
 605            -A: request annotation of all source lines (with -S)
 606            -m: minimum execution count (with default basic-block display)
 607            -N: force new file format (only if BSD_COMPATIBLE is defined)
 608            -S: annotate source file
 609            -t: set table length (with -S)
 610
 611         * Makefile (OBJS): added basic_blocks.o call_graph.o gmon_io.o
 612         source.o time_hist.o
 613
 614         Fri Jul  1 15:23:50 1994  David Mosberger-Tang  (davidm@piston.cs.arizona.edu)
 615
 616         * gprof.c (asgnsamples): computation of "pcl" and "pch" depended
 617         on the fact being able to store a long in a double without loss of
 618         precision; this does not hold on machines with 64 bit longs and 64
 619         bit doubles.
 620
 621 Fri Oct 21 18:58:02 1994  Ken Raeburn  <raeburn@cujo.cygnus.com>
 622
 623         * printgprof.c (flatprofheader): Always set totime to 1.0 if not
 624         greater than 0.0.  Suggested by Harold Assink
 625         <carlo@sg.tn.tudelft.nl>.
 626
 627 Fri Sep 23 15:06:45 1994  Ken Raeburn  <raeburn@cujo.cygnus.com>
 628
 629         * printgprof.c (printprof): Use free, not cfree.
 630         (printgprof, printindex): Ditto.
 631
 632 Thu Sep  1 10:40:45 1994  Jeff Law  (law@snake.cs.utah.edu)
 633
 634         * gprof.h (kfromlist, ktolist, flist, Flist, elist, Elist): Make
 635         decls extern to keep native HP compiler quiet.
 636
 637 Tue Aug 30 11:12:13 1994  Ian Lance Taylor  (ian@sanguine.cygnus.com)
 638
 639         * gprof.c (funcsymbol): Ignore ___gnu_compiled as well as
 640         __gnu_compiled, for the benefit of systems which add a leading
 641         underscore.
 642
 643 Wed Aug 24 12:49:13 1994  Ian Lance Taylor  (ian@sanguine.cygnus.com)
 644
 645         * configure.in: Change i386-*-* to i[345]86-*-*.
 646
 647 Sun Jul 10 00:35:31 1994  Ian Dall  (dall@hfrd.dsto.gov.au)
 648
 649         * ns532.c, ns532.h: New Files. ns532 support.
 650
 651         * config/mt-ns532: New File. ns532 support.
 652
 653         * gprof.c: user register int i instead of defaulting the int.
 654         Allows compilation with -Dregister= for debugging.
 655
 656         * configure.in: Add ns532 support.
 657
 658 Thu Jun 23 11:22:41 1994  Jeff Law  (law@snake.cs.utah.edu)
 659
 660         * Makefile.in (gprof): Depend on $(LIBS).
 661
 662 Fri May 27 12:24:57 1994  Ken Raeburn  (raeburn@cujo.cygnus.com)
 663
 664         From binutils-2.4 release:
 665
 666         Wed May 11 22:32:00 1994  DJ Delorie (dj@ctron.com)
 667
 668         * configure.bat: [new] build makefile from makefile.in (dos)
 669         * hertz.c: allow static HERTZ (msdos needs it)
 670         * gprof.c: allow target to select "r" or "rb" for fopen
 671         * gprof.c: ignore __gnu_compiled symbols
 672         * i386.h: dfine FOPEN_RB to "rb" for dos.
 673
 674 Tue May 17 15:30:22 1994  E. Michael Smith (ems@cygnus.com)
 675
 676         * Makefile.in (.m.c:):  Added .SUFFIXES : .m
 677         so flat_bl.c would make from flat_bl.m file.
 678
 679 Thu May  5 19:23:24 1994  Ken Raeburn  (raeburn@cujo.cygnus.com)
 680
 681         * Makefile.in (install-info): Check for gprof.info in build dir,
 682         fall back to srcdir.  Depend on it.
 683
 684         * gprof.h (TRUE, FALSE): Always use undef before defining them.
 685
 686 Mon Apr  4 23:47:30 1994  Jeffrey A. Law  (law@snake.cs.utah.edu)
 687
 688         * Makefile.in (MY_MACHINE): Renamed from MACHINE to avoid losing
 689         makes (osf1) in which the value of MACHINE can not be changed.
 690         * config/*.mt: Changed appropriately.
 691
 692 Wed Mar 30 16:12:40 1994  Ian Lance Taylor  (ian@tweedledumb.cygnus.com)
 693
 694         * gprof.c (getsymtab): Change nosyms to long.  Rename
 695         get_symtab_upper_bound to bfd_get_symtab_upper_bound.  Check for
 696         errors from bfd_get_symtab_upper_bound and
 697         bfd_canonicalize_symtab.
 698
 699 Tue Mar 22 10:50:52 1994  Jeffrey A. Law  (law@snake.cs.utah.edu)
 700
 701         * gprof.c (funcsymbol): Use bfd_get_symbol_info instead of
 702         bfd_decode_symclass.
 703
 704 Sun Mar 20 15:40:21 1994  Jeffrey A. Law  (law@snake.cs.utah.edu)
 705
 706         * Makefile.in: Avoid bug in hpux sed.
 707
 708 Wed Dec 15 20:16:40 1993  david d `zoo' zuhn  (zoo@andros.cygnus.com)
 709
 710         * gprof.texi (Invoking): add text about -v flag
 711
 712         * gprof.1: add text about -v flag
 713
 714 Wed Dec  8 16:55:06 1993  david d `zoo' zuhn  (zoo@andros.cygnus.com)
 715
 716         * gprof.c (VERSION): defined a version macro, print the value
 717         when the -v option is used
 718
 719 Tue Jul  6 10:11:56 1993  Steve Chamberlain  (sac@phydeaux.cygnus.com)
 720
 721         * Makefile.in: Install correctly.
 722
 723 Thu Jun 24 14:43:22 1993  David J. Mackenzie  (djm@thepub.cygnus.com)
 724
 725         * gprof.c (main): Get whoami from argv, instead of hardcoding.
 726         Use it in usage message.  Split usage message to fit in 80 cols.
 727
 728 Sun Jun 20 20:58:02 1993  Ken Raeburn  (raeburn@poseidon.cygnus.com)
 729
 730         * Makefile.in: Undo 15 June change.
 731
 732 Wed Jun 16 12:54:53 1993  Steve Chamberlain  (sac@phydeaux.cygnus.com)
 733
 734         * gmon.h, gprof.h: structs of chars used to hold external
 735         representations.
 736         * gprof.c (getpfile, openpfile, readsamples): Swap data in using
 737         new structures.
 738
 739 Tue Jun 15 23:09:17 1993  Ken Raeburn  (raeburn@cambridge.cygnus.com)
 740
 741         * Makefile.in (.c.o): Look in ../include, not ../bfd, for bfd.h.
 742
 743 Mon Jun 14 16:22:59 1993  david d `zoo' zuhn  (zoo at rtl.cygnus.com)
 744
 745         * Makefile.in: remove parentdir support
 746
 747 Mon Jun  7 12:56:17 1993  Per Bothner  (bothner@rtl.cygnus.com)
 748
 749         * Makefile.in (INCLUDES):  Add -I../bfd for sysdep.h and bfd.h.
 750         * configure.in:  No longer need to configure to get sysdep.h.
 751
 752 Tue May 18 21:44:11 1993  david d `zoo' zuhn  (zoo at cirdan.cygnus.com)
 753
 754         * Makefile.in (install): should not depend on install-info
 755
 756 Mon Apr 26 12:37:46 1993  Ian Lance Taylor  (ian@cygnus.com)
 757
 758         * gprof.h: Include ansidecl.h before sysdep.h.  Undefine hz.
 759
 760 Tue Apr 13 16:14:03 1993  Per Bothner  (bothner@cygnus.com)
 761
 762         * M Makefile.in:  Add -g to CFLAGS.
 763         Ads LDFLAGS and use in place of CFLAGS where appropriate.
 764         * configure.in:  Make a sysdep.hlink in the same way other
 765         bfd-based directories do.
 766         * gprof.h (UNIT):  Replace non-standard 'u_short' by 'unsigned
 767         short'.
 768         * gprof.h:  #include sysdep.h instead of a bunch of stuff.
 769         * gprof.c (main):  Fix typo gproff->gprof.
 770
 771 Thu Mar 25 19:00:37 1993  david d `zoo' zuhn  (zoo at cirdan.cygnus.com)
 772
 773         * gprof.texi: add INFO-DIR-ENTRY
 774
 775 Tue Mar 23 00:03:11 1993  david d `zoo' zuhn  (zoo at cirdan.cygnus.com)
 776
 777         * Makefile.in: add installcheck target
 778
 779 Sat Feb 27 18:17:10 1993  Per Bothner  (bothner@rtl.cygnus.com)
 780
 781         * gprof.c (funcsymbol):  Invert test for aflag.
 782
 783 Thu Feb 25 16:01:50 1993  Per Bothner  (bothner@rtl.cygnus.com)
 784
 785         * printgprof (xmalloc, xrealloc):  Cast results of malloc
 786         and realloc to PTR.
 787
 788 Wed Feb  3 13:55:33 1993  Jeffrey Osier  (jeffrey@fowanton.cygnus.com)
 789
 790         * Makefile.in: created info, install-info, dvi
 791
 792 Wed Jan  6 00:58:09 1993  david d `zoo' zuhn  (zoo at cirdan.cygnus.com)
 793
 794         * Makefile.in: fix install rule for $(PROG)
 795
 796 Fri Oct  9 11:25:41 1992  Mark Eichin  (eichin@cygnus.com)
 797
 798         * gprof.1: updated SYNOPSIS to match actual behavior.
 799
 800 Mon Oct  5 17:50:16 1992  Per Bothner  (bothner@cygnus.com)
 801
 802         * gen-c-prog.awk:  New awk script, lightly changed from
 803         previously deleted make-c-prog.awk.  Converts a text file
 804         to a c function that prints that text.
 805         * flat_bl.m, fsf_callg_bl.m, bsd_callg_bl.m:  New files.
 806         Inputs to gen-c-prog.awk, containing text describing
 807         gprof output.
 808         * blurbs.c:  Removed.  Use *_bl.c instead.
 809         * Makefile.in: Use gen-cprog.awk to generate *_bl.c files
 810         from *_bl.m files.  Also, improve *clean rules.
 811         * printgprof.c (printgprof):  Usw new function names from *_bl.c.
 812
 813
 814 Sun Aug 30 19:54:53 1992  Per Bothner  (bothner@rtl.cygnus.com)
 815
 816         * gprof.h, gprof.c, printfgprof.c:  Add support for two
 817         output styles:  The default is similar to the old FSF gprof,
 818         while -T sets the variable bsd_style_output, which causes
 819         output matching Berkeley's gprof.  The biggest differences
 820         are that with the FSF style output, the flat profile comes
 821         before the call graph; numbers come before explanations;
 822         and there is less gratuitous white space.
 823         * gprof.h, gprof.c, printfgprof.c:  New discard_underscores
 824         variable causes discarding of initial underscores when
 825         printing symbol names.  It is set unless there is a "main"
 826         symbol (without an underscore).
 827         * printfgprof.c:  New function printnameonly(), called
 828         by printname().  It handles stripping of initial '_',
 829         as well as C++ name-demangling.
 830         * gprof.callg, gprof.flat, make-c-prog.awk:  Removed.
 831         It is just as convenient to edit blurbs.c directly.
 832         * Makefile.in:  Removed rule for making blurbs.c.
 833         * blurbs.c:  This is now a true source file (as opposed
 834         to being generated from gprof.callg and gprof.flat).
 835         Change style to use one long string literal, instead of
 836         one literal per output line.  Add FSF-style blurb for call graph.
 837
 838 Wed Aug 19 14:36:39 1992  Ian Lance Taylor  (ian@cygnus.com)
 839
 840         * Makefile.in: always create installation directories.
 841
 842 Wed Aug 12 15:14:14 1992  Mark Eichin  (eichin@cygnus.com)
 843
 844         * Makefile.in: change ${MACHINE} to $(MACHINE).
 845
 846 Sun Jul 19 17:34:01 1992  david d `zoo' zuhn  (zoo at cirdan.cygnus.com)
 847
 848         * Makefile.in:  removed installation of the now useless
 849         call.{flag,callg} files.
 850
 851         * gprof.1: now uses the standard man macros instead of the new BSD
 852         mandoc macros.
 853
 854 Sun Jul 12 19:06:00 1992  John Gilmore  (gnu at cygnus.com)
 855
 856         * configure.in:  Remove host section, expand target section.
 857         * config/mt-{tahoe,vax}:  Add, to match existing support files.
 858         * config/tmake-*:  Remove leftover crud.
 859
 860         * blurbs.c:  New file, created from gprof.flat and gprof.callg by
 861         * make-c-prog.awk:  which processes text files into C programs.
 862         * printgprof.c (flatprofheader, gprofheader):  Call new functions
 863         to print blurbs.
 864         (printblurb):  Remove.
 865         * Makefile.in:  Infrastructure to build blurbs.
 866         * pathnames.h:  has been removed.  Gprof now has no filename
 867         dependencies in it.
 868         * gprof.c:  Lint.
 869
 870 Sat Jul 11 18:07:21 1992  david d `zoo' zuhn  (zoo at cirdan.cygnus.com)
 871
 872         * Makefile.in: define man1dir and install the man page
 873
 874 Fri Jul 10 21:14:08 1992  david d `zoo' zuhn (zoo@cygnus.com)
 875
 876         * Makefile.in: added dummy info and install-info targets
 877
 878 Thu Jun  4 11:34:02 1992  Mark Eichin  (eichin at cygnus.com)
 879
 880         * lookup.c: fixed fencepost in nllookup and added dbg_nllookup for
 881         help in debugging the problem (with -DDEBUG)
 882         * gprof.c: symbol values are now real values, don't add the vma
 883         anymore. (done for solaris; should verify this on other platforms)
 884         * ChangeLog: created.