Tue Feb 3 14:25:25 1998 Brent Baccala <baccala@freesoft.org>

[external/binutils.git] / gprof / ChangeLog

Tue Feb  3 14:25:25 1998  Brent Baccala  <baccala@freesoft.org>

        * bbconv.pl: New file.
        * Makefile.am (EXTRA_DIST): Add bbconv.pl.
        * Makefile.in: Rebuild.

        * gprof.texi: Extensive additions to document all arguments and
        output formats.

        * symtab.c (symtab_finalize): Prefer function symbols over line
        symbols.
        (dbg_sym_lookup): Correct debugging messages.

        * gprof.c (main): --sum implies --line.

        * cg_print.c (cg_print): When doing line by line profiling, don't
        use a non-function as a main listing item.

        * call_graph.c (cg_tally): When using line by line profiling, use
        the function symbol as the child.

        * symtab.h (NBBS): Define.
        (Sym): Add bb_addr and bb_calls fields.
        * basic_blocks.c (bb_read_rec): Save multiple basic blocks per
        symbol.
        (bb_write_blocks): Adjust for multiple basic blocks per symbol.
        (print_exec_counts): Don't check whether a symbol is the start of
        a basic block.  Print all basic blocks for a symbol.
        (annotate_with_count): Rewrite to print all basic block counts and
        to pay attention to width argument.
        (print_annotated_source): Don't check whether symbol is the start
        of a basic block.

        Make it possible to build a cross gprof, although a few cases are
        still not handled:
        * configure.in: Don't set MY_TARGET.
        * gprof.h: Don't include MACHINE_H.  Don't define FOPEN_RB or
        FOPEN_WB; just get them from sysdep.h.
        * core.h (min_insn_size, offset_to_code): Declare.
        * core.c (MIN_INSN_SIZE): Don't define.
        (min_insn_size, offset_to_code): New variables.
        (core_init): Initialize min_insn_size and offset_to_code.
        (find_call): New function.
        (core_create_line_syms): Don't use min_dist.  Set is_static in
        pass 2.
        * hist.c (UNITS_TO_CODE): Define.
        * gprof.c (default_excluded_list): Add "__mcount_internal".
        * gmon.h: Change TARGET_alpha to __alpha__.
        * hertz.h: Ifdef MACH, define hertz as HZ.
        * alpha.c (alpha_Instruction): Rename from Instruction.  Change
        all references.
        (alpha_find_call): Rename from find_call.
        * alpha.h: Remove.
        * dummy.c, dummy.h: Remove.
        * i386.c (i386_iscall): Rename from iscall.  Change all
        references.  Check for call instruction, not jump or lcall.
        (i386_find_call): Rename from find_call.  Correct for VMA.
        Correct call destination computation.  Don't dereference symbol if
        it is NULL.
        * i386.h: Remove.
        * ns532.c, ns532.h: Remove.
        * sparc.c (CALL): Define.
        (sparc_find_call): Rename from find_call.
        * sparc.h: Remove.
        * tahoe.c: Include cg_arcs.h, core.h, hist.h, and symtab.h.  Don't
        include time_host.h.
        (CALLF, PC): Define.
        (enum tahoe_opermodes, tahoe_operandenum): Define.  Rename all
        references to opermodes or operandenum to these.
        (tahoe_operandmode): Rename from operandmode.  Call abort if
        switch does not return.
        (tahoe_operandname): Rename from operandname.  Call abort if
        switch does not return.
        (tahoe_operandlength): Rename from operandlength.  Call abort if
        switch does not return.
        (tahoe_reladdr): Rename from reladdr.
        (tahoe_find_call): Rename from find_call.  Use core_text_space
        rather than textspace.
        * tahoe.h: Remove.
        * vax.c (CALLS, PC): Define.
        (enum opermodes, operandenum, struct modebyte): Define.
        (vax_operandmode): Rename from operandmode.  Call abort if switch
        does not return.
        (vax_operandname): Rename from operandname.  Call abort if switch
        does not return.
        (vax_operandlength): Rename from operandlength.  Call abort if
        switch does not return.
        (vax_reladdr): Rename from reladdr.
        (vax_find_call): Rename from find_call.
        * vax.h: Remove.
        * Makefile.am (AUTOMAKE_OPTIONS): Set to cygnus.
        (MY_TARGET): Remove.
        (INCLUDES): Remove -DTARGET_$(MY_TARGET) and -DMACHINE_H=
        \"$(MY_TARGET).h\".
        (gprof_SOURCES): Add i386.c, alpha.c, vax.c, tahoe.c, sparc.c.
        (gprof_DEPENDENCIES): Remove $(MY_TARGET).o.
        (gprof_LDADD): Likewise.
        (noinst_HEADERS): Remove alpha.h, i386.h, ns532.h, sparc.h,
        tahoe.h, vax.h, dummy.h.
        (EXTRA_DIST): Remove alpha.c, i386.c, ns532.c, sparc.c, tahoe.c,
        vax.c, dummy.c.
        ($(OBJECTS)): Don't depend upon $(MY_TARGET).h.
        ($(MY_TARGET).o): Remove target.
        (i386.o, alpha.o, vax.o, tahoe.o, sparc.o): New targets.
        * configure, Makefile.in, aclocal.m4: Rebuild.

Mon Dec 29 14:17:08 1997  Ian Lance Taylor  <ian@cygnus.com>

        * core.c (core_sym_class): Treat weak symbols as text symbols.
        From Dean Gaudet <dgaudet@arctic.org>.

Wed Sep 24 11:35:43 1997  Ian Lance Taylor  <ian@cygnus.com>

        * aclocal.m4: Rebuild with new libtool.
        * Makefile.in: Rebuild with current automake.
        * configure: Rebuild.

Sat Aug  9 16:25:01 1997  Ian Lance Taylor  <ian@cygnus.com>

        * configure.in: Change version number to 2.8.2.  Call
        AM_PROG_LIBTOOL.  Remove shared library handling; now handled by
        libtool.  Add AM_CONFIG_HEADER.  Change AC_PROG_INSTALL to
        AM_PROG_INSTALL.  Add AM_EXEEXT.
        * Makefile.am (LINK): Remove.
        (gprof_LDFLAGS): Remove
        (gprof_DEPENDENCIES): Change libbfd.a to libbfd.la.
        (gprof_LDADD): Likewise.
        ($(OBJECTS)): Depend upon gconfig.h and ../bfd/config.h.
        * gprof.h: Undefine PACKAGE and VERSION after including BFD
        sysdep.h file, then include new gconfig.h file.
        * gprof.c (VERSION): Don't define.
        * acconfig.h: New file.
        * stamp-h.in: New file.
        * gconfig.in: New file, created by autoheader.
        * Makefile.in, configure, aclocal.m4: Rebuild.

Sat Jun 28 23:20:42 1997  Ian Lance Taylor  <ian@cygnus.com>

        * aclocal.m4, configure, Makefile.in: Rebuild with automake 1.2.

Mon Jun 16 15:31:39 1997  Ian Lance Taylor  <ian@cygnus.com>

        * Makefile.am (INCLUDES): Add -DDEBUG.
        * Makefile.in: Rebuild.

Tue Apr 15 14:19:30 1997  Ian Lance Taylor  <ian@cygnus.com>

        Change to use automake:
        * Makefile.am: New file.
        * configure.in: Run AM_INIT_AUTOMAKE, AM_MAINTAINER_MODE, and
        AM_CYGWIN32.
        * aclocal.m4: New file, created by aclocal.
        * Makefile.in: Replace with file created by automake --cygnus.
        * configure: Rebuild.

Thu Apr  3 13:21:25 1997  Ian Lance Taylor  <ian@cygnus.com>

        * gprof.c (VERSION): Define as "2.8.1".

        * Branched binutils 2.8.

Thu Mar 27 17:15:23 1997  Ian Lance Taylor  <ian@cygnus.com>

        * gprof.c (main): Correct copyright message.

Mon Mar 24 11:12:26 1997  Ian Lance Taylor  <ian@cygnus.com>

        * Makefile.in (.c.o): Define TARGET_$(MY_TARGET) when compiling.
        * gmon.h: Use bytes counts rather than sizeof in struct raw_phdr
        and struct raw_arc.

Mon Mar 17 10:54:47 1997  David Mosberger-Tang  <davidm@azstarnet.com>

        * cg_arcs.c (arc_add): memset() newly alloced arc to ensure
        all fields are initialized with 0.

Sat Mar 15 19:17:31 1997  H.J. Lu  <hjl@lucon.org>

        * symtab.h (find_call): Declare.
        * cg_arcs.c (cg_assemble): Don't declare find_call.
        * hist.c (scale_and_align_entries): Declare.

Thu Feb 27 12:46:53 1997  Ian Lance Taylor  <ian@cygnus.com>

        * configure.in: Define BSD44_FORMAT if the target looks like a
        BSD4.4 derived system.
        * configure: Rebuild.
        * Makefile.in (.c.o): Add @DEFS@.
        * gmon_io.c (gmon_out_read): In BSD44_FORMAT code, get profrate
        from profrate field, not version field.

Thu Jan 16 17:42:54 1997  Ian Lance Taylor  <ian@cygnus.com>

        * dummy.c (find_call): Clear ignore_direct_calls.

Tue Dec 31 15:44:10 1996  Ian Lance Taylor  <ian@cygnus.com>

        * Makefile.in (.c.o): Add -D_GNU_SOURCE.  Put $(CFLAGS) at the
        end.
        (gprof): Put $(CFLAGS) after the other options.

Tue Nov 26 17:08:38 1996  Ian Lance Taylor  <ian@cygnus.com>

        * configure: Rebuild with autoconf 2.12.

Wed Oct  2 15:23:16 1996  Ian Lance Taylor  <ian@cygnus.com>

        * sparc.c (find_call): Align p_lowpc to avoid bus error.

Tue Oct  1 15:58:10 1996  Ian Lance Taylor  <ian@cygnus.com>

        * gprof.c (usage): Print bug report address.
        (main): Change version printing to match current GNU standards.

Fri Aug 30 12:16:11 1996  Ian Lance Taylor  <ian@cygnus.com>

        * gmon.h: Replace #elif with #else/#endif.

Thu Aug 29 17:04:10 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

        * configure.in (i[345]86-*-*): Recognize i686 for pentium pro.
        * configure: Regenerate.

Thu Aug 22 17:12:30 1996  Ian Lance Taylor  <ian@cygnus.com>

        * configure.in: Set and substitute HLDENV.
        * configure: Rebuild.
        * Makefile.in (HLDENV): New variable.
        (gprof): Use $(HLDENV).

Wed Aug  7 14:43:51 1996  Philippe De Muyter  <phdm@info.ucl.ac.be>

        * core.c (read_function_mappings): Cast xmalloc return.

Thu Jul  4 12:01:42 1996  Ian Lance Taylor  <ian@cygnus.com>

        * gprof.c (VERSION): Define as "2.7.1".

        * Released binutils 2.7.

        * bb_exit_func.c: Rename from __bb_exit_func.c, so that it can be
        stored on a System V file system.

Thu Jun 27 11:36:22 1996  Ian Lance Taylor  <ian@cygnus.com>

        * configure.in: Call AC_ISC_POSIX.
        * configure: Rebuild.
        * Makefile.in (gprof): Pass $(CFLAGS) during link.
        * hertz.c: Don't include <sys/time.h>; let sysdep.h handle that.
        If HAVE_SETITIMER is not defined, try using sysconf.

Mon Jun 24 18:27:28 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)

        * Makefile.in (exec_prefix, bindir, libdir, mandir, infodir, datadir,
        INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
        * configure.in (AC_PREREQ): autoconf 2.5 or higher.
        (AC_PROG_INSTALL): added.
        * configure: Rebuilt.

Mon Jun 24 12:03:09 1996  Ian Lance Taylor  <ian@cygnus.com>

        * configure.in: On alpha*-*-osf*, link against libbfd.a if not
        using shared libraries.
        * configure: Rebuild with autoconf 2.10.

Tue Jun 18 17:35:58 1996  Ian Lance Taylor  <ian@cygnus.com>

        * core.c (core_create_line_syms): Use xstrdup rather than strdup.
        * source.c (source_file_lookup_path): Likewise.

Mon Apr  8 14:44:33 1996  Ian Lance Taylor  <ian@cygnus.com>

        * configure.in: Permit --enable-shared to specify a list of
        directories.
        * configure: Rebuild.

Thu Mar 21 17:18:25 1996  Ian Lance Taylor  <ian@cygnus.com>

        * core.c (core_create_function_syms): Move filename and func_name
        inside ifdef where they are used.

        * core.c (core_sym_class): Parenthesize && within ||.
        * symtab.c (symtab_finalize): Correct parenthesization.

        * cg_print.h (cg_print_file_ordering): Declare.
        (cg_print_function_ordering): Declare.

        * __bb_exit_func.c (__bb_exit_func): Replace bcopy with memcpy.
        * cg_arcs.c (arc_add): Likewise.
        * cg_print.c (cg_print_function_ordering): Likewise.

Thu Mar 21 17:02:02 1996  David Mosberger-Tang  <davidm@azstarnet.com>

        * gprof.c (default_excluded_list): Add "__mcount".

        * gprof.c (main): Change ifdef __osf__ to __alpha__.

        * gmon_io.c (gmon_out_read): If BSD44_FORMAT is defined, get the
        profiling rate from the header.

        * gmon.h (struct raw_phdr): Only include pad if both __alpha__ and
        __osf__ are defined.  Add new fields if BSD44_FORMAT is defined.

        * alpha.h (MIN_INSN_SIZE): Define.
        * core.c (MIN_INSN_SIZE): If not defined, define as 1.
        (core_sym_class): Ignore debugging symbols.
        (core_create_line_syms): Use MIN_INSN_SIZE when gathering line
        information.

Wed Mar 20 18:15:47 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

        * cg_print.c (cg_print_function_ordering): Fix __GNUC__ misspelled
        as __GNU_C__.
        (order_and_dump_functions_by_arcs): Likewise.

Tue Mar 12 12:19:50 1996  Ian Lance Taylor  <ian@cygnus.com>

        * configure: Rebuild with autoconf 2.8.

Sun Feb 18 15:06:18 1996  Ian Lance Taylor  <ian@cygnus.com>

        * configure.in: Check for 'do not mix' from native linker before
        trying to use -rpath.
        * configure: Rebuild.

Tue Feb 13 15:32:53 1996  Ian Lance Taylor  <ian@cygnus.com>

        * configure.in: Set HDLFLAGS for *-*-hpux with --enable-shared.
        * configure: Rebuild.

Wed Feb  7 14:03:17 1996  Ian Lance Taylor  <ian@cygnus.com>

        * configure.in: Don't set CC.  Look for --enable-shared.  Set
        BFDLIB and HLDFLAGS and substitute them.
        * configure: Rebuild.
        * Makefile.in (LIBS): Use @BFDLIB@.
        (HLDFLAGS): New variable.
        (gprof): Use $(HLDFLAGS).

Mon Feb  5 16:34:44 1996  Ian Lance Taylor  <ian@cygnus.com>

        Support for building bfd and opcodes as shared libraries, based on
        patches from Alan Modra <alan@spri.levels.unisa.edu.au>:
        * Makefile.in (LIBDEPS): New variable.
        (LIBS): Use -L../bfd -lbfd.
        (gprof): Depend upon $(LIBDEPS) rather than $(LIBS).

Sat Dec 30 10:11:03 1995  Jeffrey A Law  (law@cygnus.com)

        * gprof.c (long_options): Add "--function-ordering" and
        "--file-ordering" options.
        (usage): Add new options to usage message.
        (main): Handle new options.
        * gprof.h (STYLE_FUNCTION_ORDER): Define.
        (STYLE_FILE_ORDER): Define.
        (function_mapping_file): Declare.
        * cg_arcs.c (arcs, numarcs): New globals.
        (arc_add): Put new arcs into the arc array so the function/file
        ordering code can examine them.
        * cg_arcs.h (struct arc): New field "has_been_placed".
        (arcs, numarcs): Declare new globals.
        * core.c (symbol_map, symbol_map_count): New globals.
        (read_function_mappings): New function to read in a function
        to object map file.
        (core_init): Call read_function_mappings if a function mapping
        file exists.
        (core_create_function_syms): Handle function to object file
        mappings.
        * symtab.h (struct sym): New fields "mapped", "has_been_placed",
        "nuses", "prev".
        * cg_print.c (cmp_arc_count): New function for sorting arcs.
        (cmp_fun_nuses): Likewise for functions.
        (cg_print_function_ordering): New function to print a suggested
        function ordering.
        (cg_print_file_ordering): Likewise for ordering .o files.
        (order_and_dump_functions_by_arcs): Helper function for function
        and object file ordering code.

Sun Dec 24 21:32:27 1995  Jeffrey A Law  (law@cygnus.com)

        * core.c (core_sym_class): Ignore symbols without BSF_FUNCTION
        set if ignore_non_function is set.
        * gprof.h (ignore_non_functions): Declare.
        * gprof.c (ignore_non_functions): Define.
        (long_options): Add "ignore-non-functions".
        (usage): Add new options.
        (main): Recognize "-D" and "--ignore-non-functions" option.

Tue Nov 21 13:24:39 1995  Ken Raeburn  <raeburn@cygnus.com>

        * Makefile.in (.m.c): Strip out directory name from function
        name.

        * hist.c (scale_and_align_entries): Don't use DEFUN_VOID.  Do
        UNITS_TO_CODE adjustment unconditionally; compiler can optimize
        away zero-offset case.  Refer to scaled_addr, not aligned_addr.

        * vax.c: Don't include vax.h here.

Thu Nov 16 03:41:37 1995  Ken Raeburn  <raeburn@cygnus.com>

        Version 2.6 released.

Wed Nov  8 11:40:04 1995  Ian Lance Taylor  <ian@cygnus.com>

        * gprof.c (main): Cast getenv return value.

Mon Nov  6 15:05:00 1995  Ken Raeburn  <raeburn@cygnus.com>

        * Makefile.in (TAGS): New target.

Wed Nov  1 12:51:21 1995  Per Bothner  <bothner@kalessin.cygnus.com>

        * Makefile.in (DISTSTUFF):  Rename to GEN_FILES, to avoid confusion.
        (all):  Depend on $(GEN_FILES), not diststuff (which also depends
        on info).

Wed Nov  1 15:23:15 1995  Manfred Hollstein KS/EF4A 60/1F/110 #40283  <manfred@lts.sel.alcatel.de>

        * sym_ids.c: Include <ctype.h>.

Wed Oct 25 13:24:31 1995  Per Bothner  <bothner@kalessin.cygnus.com>

        * Makefile.in (diststuff):  Also make info.
        (mostlyclean):  Don't remove gprof.info*.
        (maintainer-clean realclean):  Also remove *.info*.

Fri Oct  6 16:25:32 1995  Ken Raeburn  <raeburn@cygnus.com>

        Mon Sep 25 22:49:32 1995  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

        * Makefile.in: Add dependecies for $(OBJS) on header files.

        * cg_print.c (print_cycle, print_members, cg_print_index): Fix new
        style output format to make it consistent.
        * dummy.c (find_call): Fix typo in error message.

Wed Sep 20 13:21:02 1995  Ian Lance Taylor  <ian@cygnus.com>

        * Makefile.in (maintainer-clean): New target, synonym for
        realclean.

Fri Sep  8 14:38:08 1995  Ian Lance Taylor  <ian@cygnus.com>

        * Makefile.in (install): Don't install in $(tooldir).

Fri Aug 25 15:30:05 1995  Ken Raeburn  <raeburn@cygnus.com>

        NS32K changes from Ian Dall:
        * configure.in: Use ns32k, not ns532.
        * ns532.c: Include symtab.h.
        (find_call): Renamed from findcall.  Print a message.
        * ns532.h: Remove dummy.h comments.

Tue Aug 22 10:00:45 1995  Jeffrey A. Law  <law@rtl.cygnus.com>

        * Makefile.in (install): Remove "brokensed" hack, unnecessary now
        that we're using autoconf.

Wed Jul 19 18:46:13 1995  Fred Fish  <fnf@cygnus.com>

        * core.c (get_src_info): Cast arg 7 of bfd_find_nearest_line
        to proper type of "unsigned int *".

Fri Jun 16 15:29:36 1995  Ken Raeburn  <raeburn@cujo.cygnus.com>

        * configure.in: Use changequote around use of [].

Mon Jun 12 12:14:52 1995  J.T. Conklin  <jtc@rtl.cygnus.com>

        * Makefile.in (distclean, realclean): Remove config.cache and
          config.log.

Wed May 17 17:56:53 1995  J.T. Conklin  <jtc@rtl.cygnus.com>

        * Makefile.in (Makefile): Added config.status to dependency list.
          (config.status): New target.
          (SHELL): New definition.

Tue Apr 25 21:11:12 1995  Ken Raeburn  <raeburn@cujo.cygnus.com>

        * Makefile.in (install): Depend on "all".

Thu Apr 20 17:29:07 1995  Ken Raeburn  <raeburn@cujo.cygnus.com>

        * Makefile.in: Change all references to MY_MACHINE to MY_TARGET,
        to match configure script.

Wed Apr 19 11:19:37 1995  J.T. Conklin  <jtc@rtl.cygnus.com>

        * gen-c-prog.awk: Changed reference to "make-c-prog.awk" in
          comment emitted by this script to gen-c-prog.awk.

        * Makefile.in, configure.in: Converted to use autoconf.
        * configure: New file, generated with autoconf 2.3.
        * config/{mt-alpha, mt-dummy, mt-i386, mt-ns532, mt-sparc,
          mt-tahoe, mt-vax}: Removed.

Mon Mar 13 21:44:24 1995  Ken Raeburn  <raeburn@cujo.cygnus.com>

        * __bb_exit_func.c: New file, from David Mosberger-Tang.

        Thu Feb  9 16:56:07 1995  David Mosberger-Tang  <davidm@piston.cs.arizona.edu>

        * All *.c: More cleanup towards GNU format.

        * gmon_out.h (struct gmon_hist_hdr, struct gmon_cg_arc_record): 
        replaced sizeof (bfd_vma) by size (char*) because Ken tells me
        that bfd_vma is only guaranteed to be at least as big as a pointer.

        (GMON_Record_tag): added explicit enumeration values to ensure
        compatibility across compilers.

        * gmon_io.c (get_vma, put_vma): replaced sizeof(bfd_vma) by
        sizeof(char*).

Tue Feb  7 17:24:12 1995  Ken Raeburn  <raeburn@cujo.cygnus.com>

        * All *.c and *.h files: Ran "indent -gnu".  Cleaned up a couple
        of constructs GNU indent couldn't handle.  Block comments not yet
        rewritten in GNU format.

        * gprof.c (VERSION): Changed to 2.6, to get in sync for next
        binutils release.

Sun Feb  5 16:19:46 1995  David Mosberger-Tang  <davidm@piston.cs.arizona.edu>

        * symtab.c (symtab_finalize): ensure globals symbols really
        are favored over static ones---even if their name looks less
        preferable; this is important for HP-UX; for example, there
        is a static label Ltext_something that aliases the global
        symbol _start

        * hist.c (hist_print): auto-scaling is now in effect for FSF-style
        output only; also, auto-scaling is now performed based on
        per-call, rather than total execution time, which is what it was
        meant to be.

        * gprof.h (File_Format): new type.

        * gprof.c (VERSION): upped to 2.7---seems to be completely out of
        sync with Cygnus version numbers though...

        (long_options): renamed --gmon-info to --file-info, --width added,
        renamed --old-file-format to --file-format
        (main): dito; also added support to read prof files, but as
        mon_out_read() is not implemented, it's #ifdef'd out for now

        (usage): update to reflect new options.

        * gmon_io.c: replaced "old_file_format" by more general
        "file_format" option

        * gmon.h (struct raw_phdr): fixed declaration for OSF/1.

        * core.c (core_sym_class): added back check for __gnu_compiled and
        ___gnu_compiled for the benefit of systems without
        bfd_find_nearest_line() support

        (get_src_info): now the libbfd is fixed, invoke bfd_find_nearest_line()
        with section-relative addresses

        (core_create_function_syms): get_src_info() calls are currently
        enabled for OSF/1 only.  It appears to work allright for SunOS
        4.1.x as well, but on SPARCs it gets painfully slow with the
        current implementation of aout_32_find_nearest_line();
        unfortunately, this means that static functions will not have their
        filename printed in the call-graph function index; line-level
        profiling should still work, but requires some patience

        * cg_print.c (cg_print_index): sanitised printing of index when
        using FSF-style output; in particular, output width is now controlled
        via option --width and the function tries hard to keep columns
        aligned even in the presence of (occasional) long names

        * NOTES: a first shot at updating the documentation.

Wed Feb  1 19:07:44 1995  David Mosberger-Tang  <davidm@piston.cs.arizona.edu>

        * core.c (core_create_function_syms): fixed computation of min_vma
        and max_vma.

        * *.c: removed rcsid.

Tue Jan 31 16:18:18 1995  Ken Raeburn  <raeburn@cujo.cygnus.com>

        * Lots of changes from David Mosberger-Tang:

        Tue Oct 25 19:20:14 1994  David Mosberger-Tang  <davidm@piston.cs.arizona.edu>

        * gprof.c (main): put parentheses around & within &&.

        * basic_blocks.c (bb_read_rec): print warning message (once) when
        ignoring basic-block execution counts.

        * source.c (source_file_lookup_name): corrected second argument to
        strcmp().

        * hist.c (print_header): merged Fri Oct 21 18:58:02 1994 change by
        Ken Raeburn <raeburn@cujo.cygnus.com> from binutils-2.5.1.

        * gmon_io.c (gmon_out_read): the output stule STYLE_GMON_INFO is now
        supported both for old and new (versioned) gmon.out files.  Old
        files are identified as version 0.

        * gmon.h (struct raw_arc): count field is now sizeof(long) bytes
        long (instead of 4) because that is what OSF/1 v3.0 uses.

        * core.c: minor fixes and debugging info changes.

        Sun Sep 11 18:47:47 1994  David Mosberger-Tang  (davidm@piston.cs.arizona.edu)

        * core.c (core_init): if .text cannot be found, try $CODE$ (the
        name of the text-section under HP-UX).

        * hist.c (hist_assign_samples): fixed off-by-one bug: highpc
        points one past the last sampling bin, so hist_scale should be
        computed as "hist_scale /= hist_num_bins", not "hist_scale /=
        hist_num_bins - 1".

        * gmon_io.c, hist.c, hist.h: renamed hist_num_samples to
        hist_num_bins.

        * configure.in: added alpha-*-*) for per-target config.

        * alpha.c, alpha.h: created.

        * gprof.c (default_excluded_list): <locore>, <hicore> added.

        * core.c (core_create_function_syms, core_create_line_syms):
        explicitly keep two sentinels "<locore>" and "<hicore>" that catch
        all addresses outside the text-space.  Thus, sym_lookup(&symtab,
        addr) continues to guarantee not to return 0 on any address.  It
        also avoids incorrectly crediting the first/last symbol in the
        text-space.

        * core.c (core_create_line_syms): always create function symbols
        first, then merge in line symbols; this is so that if parts of the
        program were compiled without -g, function-level symbols are
        available still.

        * utils.c (print_name_only): support for print_path added.

        * symtab.c (cmp_addr): also use is_func flag in comparison.
        (symtab_finalize): return immediately when table empty; now
        more careful about getting rid of the right duplicate symbol.

        * sparc.c (find_call): many fixes---this function was rather
        botched in binutils-2.4 already; it should work again.

        * source.c (source_file_lookup_path): PATH is now strdup'ed (it is
        not good to rely on get_src_info() to return distinct string
        pointers).

        * search_list.c (search_list_append): added cast for xmalloc().

        * hist.c: added explicit initialization to some of the global
        variables; fixed SItab (scales were off by a factor of 10).

        * hist.h: include of bfd.h added.

        * gprof.c, gprof.h (print_path): added.

        * gprof.h (MAX): fixed.

        * gmon_out.h: renamed gmon_time_hist_hdr to gmon_hist_hdr.

        * gmon_io.c: added some casts to (long) so we can always print as %lx

        * core.c (core_get_text_space): fixed to make it work.

        * cg_print.c (cg_print_index): added support for print_path option.

        * cg_dfn.h (cg_dfn): wrap prototype in PARAMS().

        * call_graph.c, gmon_io.c, hist.c: avoid taking address of array
        as some compilers complain (e.g., DEC's OSF/1 compiler)

        * basic_blocks.c, gmon_io.c, hist.c, source.c, sym_ids.c,
        symtab.c: calls to memset() had 2nd and 3rd args reversed.

        Sat Sep 10 21:53:13 1994  David Mosberger-Tang  (davidm@piston.cs.arizona.edu)

        * gprof.c: added "_mcount" to default_excluded_list.
        (main): if output_style==0 and there is either a histogram or a
        call-graph, always generate flat and call-graph, no matter what
        line_granularity is set to.

        * source.c (source_file_lookup_name): if searching for sf->name
        fails, try again with filename obtained after stripping off any
        partial path from sf->name.

        * gprof.h (SRCDEBUG): added.

        * search_list.c (search_list_append): directories were added in wrong
        order.

        * reimplemented selection mechanism from ground up; it is now possible
        to accurately control what gets included/excluded in each of the
        output styles;  a "symbol-specification" (spec) is the basic means
        to select a set of symbols; a spec has the syntax:

          spec == (FILENAME:(FUNCNAME|LINE_NUM) | NAME).
          arc == spec/spec.

        any of the terminal symbols can be empty, in which case they
        match anything (wildcards).  NAME is interpreted as a FILENAME
        if it contains a dot (e.g., foo.c), as LINE_NUM if it starts
        with a digit, and as FUNCNAME otherwise.

        For example, to get a call-graph display that ignores arcs
        from foo() to bar(), you'd say "--no-graph=foo/bar"; to
        show only arcs into bar() (no matter what the caller),
        you'd say "--graph=/bar"; and to get a call-graph without
        any arc info, you'd say "--graph=/";  similarly, to
        get a flat profile without mcount, you'd say "--no-flat=mcount"
        and to get a flat profile that shows includes all functions
        you'd say "--flat=""" (i.e., an empty spec)

        * hist.c (hist_print): top_time wasn't initialized to 0.0.

        Fri Sep  9 01:10:21 1994  David Mosberger-Tang  (davidm@piston.cs.arizona.edu)

        * gmon_out.h: all headers now declared in terms of characters
          to avoid getting into trouble with different compilers introducing
          different amount of padding; the code already accessed the fields
          through bfd functions, so that didn't have to change.

        * hist.c (hist_read_rec, hist_write_rec): added support for
          collection pc histograms measuring quantities other than time;
          the histogram header now includes a field that specifies the
          dimension of the quantity measured by the histogram bins
          (normally, this is "seconds", but other meaningful dimensions
           include such things as "I-cache misses", "instruction issue stalls"
           etc.); there is also a field to specify a one-character
          abbreviation for the dimension; in the case of time, this would
          be 's'; in most other cases it probably would be '1' (not a physical
          dimension).

        Thu Sep  8 16:05:08 1994  David Mosberger-Tang  (davidm@piston.cs.arizona.edu)

        * gprof.c, gmon_io.[ch]: BSD_COMPATIBLE is gone and new_file_version
          has become old_file_version; gmon_io.c now always supports old-style
          gmon.out files; it first tries to read gmon.out as a new version
          file, if that fails, it tries to read it in the old format;
          although not very likely, it is possible for gprof to mistake an
          old-style file as a new one (the first 4 bytes would have to
          be "gmon"---including the trailing '\0'); in that case, it is
          necessary to specify --old-file-version

        * gprof.h: removed dependency on SYSV; the code now always uses
          strrchr(), memset(), and memcpy() and does not include either
          of string.h or strings.h; this should make gprof compile on
          any (Unix) system without configuration (per suggestion of
          raeburn@cygnus.com)

        * gprof.c (usage): fixed location of --new-file-format option.

        * cg_arcs.c (propagate_flags): fixed typo in declaration.

        * flat_bl.m: removed formfeed at end of file; the form-feed
          is now printed cg_print.c only when necessary.

        * major rewrite of gprof---too many changes to mention all of
          them.  new features:

        + -l now requests profiling at the line level (as opposed
          to function level); in this mode, gprof creates a "symbol"
          (aka name-list entry) for each line of source code, instead
           of one per function)

        + support for a new gmon.out file format; the new format 
          consists of a header with a magic and a version number,
          followed by a sequence of profile data; profile data
          can any of: (a) PC histogram, (b) call-graph arcs, or
          (c) basic-block execution counts; the version number makes
          it possible to extend gmon.out in a backwards compatible
          fashion

        + support for tcov style annotated output: if the gmon.out file
          contains basic-block execution counts, the user can request
          the generation of annotated source files, much like Sun's
          tcov used to do

        + long options

        + new scheme to suppress symbols that aren't function names
          (e.g., avoids mistaking a goto label as a function)

        + reorganized source code to make it more managable; as a
          side effect, gprof now compiles cleanly with "gcc -Wall"

        Thu Sep  1 15:46:49 1994  David Mosberger-Tang  (davidm@piston.cs.arizona.edu)

        * gprof.c (funcsymbol): bfd_find_nearest_line() is now used as a
        final cross-check to determine whether a static symbol should be
        considered as a function-name.

        Fri Aug  5 19:32:36 1994  David Mosberger-Tang  (davidm@piston.cs.arizona.edu)

        * gmon_io.c (gmon_out_read): recognize "-" as the filename for
        stdin; this is useful if you wanna keep gmon.out files compressed;
        this way you can "gzcat" the compressed file into gprof.

        * gprof.c: flag_min_count now initialized with 1 instead of 0.

        * basic_blocks.c (bb_annotate_source): added support for creating
        .tcov files when option flag_annotate_make_files is TRUE.
        (annotate_with_count): all counts less than the minimum count
        specified by -m are now annotated with hash-marks.

        * gprof.c (main): -A is now followed by a string of option chars.

        * basic_blocks.c (annotate_with_count): replaced b->count with
        cnt.

        * source.c: flag_annotate_source replaced by source_lock_map.

        * source.h: source_lock_map added.

        * gprof.c (main): new command-line syntax: -S simply specifies
        which source-files user is interested in; -A requests annotated
        source files and -AA requests that all lines in a source file
        are annotated.

        Thu Aug  4 23:27:03 1994  David Mosberger-Tang  (davidm@piston.cs.arizona.edu)

        * basic_blocks.c (PATH_MAX): if undefined, define as 1024.

        * sparc.c, i386.c, tahoe.c, vax.c: added include of "time_hist.h"
        so s_lowpc etc. get declared.

        * arcs.h (doarcs): created.

        * arcs.c: reordered static functions such that they get defined
        before use.

        * gprof.c (main): added options:
           -A: request annotation of all source lines (with -S)
           -m: minimum execution count (with default basic-block display)
           -N: force new file format (only if BSD_COMPATIBLE is defined)
           -S: annotate source file
           -t: set table length (with -S)

        * Makefile (OBJS): added basic_blocks.o call_graph.o gmon_io.o
        source.o time_hist.o

        Fri Jul  1 15:23:50 1994  David Mosberger-Tang  (davidm@piston.cs.arizona.edu)

        * gprof.c (asgnsamples): computation of "pcl" and "pch" depended
        on the fact being able to store a long in a double without loss of
        precision; this does not hold on machines with 64 bit longs and 64
        bit doubles.

Fri Oct 21 18:58:02 1994  Ken Raeburn  <raeburn@cujo.cygnus.com>

        * printgprof.c (flatprofheader): Always set totime to 1.0 if not
        greater than 0.0.  Suggested by Harold Assink
        <carlo@sg.tn.tudelft.nl>.

Fri Sep 23 15:06:45 1994  Ken Raeburn  <raeburn@cujo.cygnus.com>

        * printgprof.c (printprof): Use free, not cfree.
        (printgprof, printindex): Ditto.

Thu Sep  1 10:40:45 1994  Jeff Law  (law@snake.cs.utah.edu)

        * gprof.h (kfromlist, ktolist, flist, Flist, elist, Elist): Make
        decls extern to keep native HP compiler quiet.

Tue Aug 30 11:12:13 1994  Ian Lance Taylor  (ian@sanguine.cygnus.com)

        * gprof.c (funcsymbol): Ignore ___gnu_compiled as well as
        __gnu_compiled, for the benefit of systems which add a leading
        underscore.

Wed Aug 24 12:49:13 1994  Ian Lance Taylor  (ian@sanguine.cygnus.com)

        * configure.in: Change i386-*-* to i[345]86-*-*.

Sun Jul 10 00:35:31 1994  Ian Dall  (dall@hfrd.dsto.gov.au)

        * ns532.c, ns532.h: New Files. ns532 support.

        * config/mt-ns532: New File. ns532 support.

        * gprof.c: user register int i instead of defaulting the int.
        Allows compilation with -Dregister= for debugging.

        * configure.in: Add ns532 support.

Thu Jun 23 11:22:41 1994  Jeff Law  (law@snake.cs.utah.edu)

        * Makefile.in (gprof): Depend on $(LIBS).

Fri May 27 12:24:57 1994  Ken Raeburn  (raeburn@cujo.cygnus.com)

        From binutils-2.4 release:

        Wed May 11 22:32:00 1994  DJ Delorie (dj@ctron.com)

        * configure.bat: [new] build makefile from makefile.in (dos)
        * hertz.c: allow static HERTZ (msdos needs it)
        * gprof.c: allow target to select "r" or "rb" for fopen
        * gprof.c: ignore __gnu_compiled symbols
        * i386.h: dfine FOPEN_RB to "rb" for dos.

Tue May 17 15:30:22 1994  E. Michael Smith (ems@cygnus.com)

        * Makefile.in (.m.c:):  Added .SUFFIXES : .m 
        so flat_bl.c would make from flat_bl.m file.

Thu May  5 19:23:24 1994  Ken Raeburn  (raeburn@cujo.cygnus.com)

        * Makefile.in (install-info): Check for gprof.info in build dir,
        fall back to srcdir.  Depend on it.

        * gprof.h (TRUE, FALSE): Always use undef before defining them.

Mon Apr  4 23:47:30 1994  Jeffrey A. Law  (law@snake.cs.utah.edu)

        * Makefile.in (MY_MACHINE): Renamed from MACHINE to avoid losing
        makes (osf1) in which the value of MACHINE can not be changed.
        * config/*.mt: Changed appropriately.

Wed Mar 30 16:12:40 1994  Ian Lance Taylor  (ian@tweedledumb.cygnus.com)

        * gprof.c (getsymtab): Change nosyms to long.  Rename
        get_symtab_upper_bound to bfd_get_symtab_upper_bound.  Check for
        errors from bfd_get_symtab_upper_bound and
        bfd_canonicalize_symtab.

Tue Mar 22 10:50:52 1994  Jeffrey A. Law  (law@snake.cs.utah.edu)

        * gprof.c (funcsymbol): Use bfd_get_symbol_info instead of
        bfd_decode_symclass.

Sun Mar 20 15:40:21 1994  Jeffrey A. Law  (law@snake.cs.utah.edu)

        * Makefile.in: Avoid bug in hpux sed.

Wed Dec 15 20:16:40 1993  david d `zoo' zuhn  (zoo@andros.cygnus.com)

        * gprof.texi (Invoking): add text about -v flag

        * gprof.1: add text about -v flag

Wed Dec  8 16:55:06 1993  david d `zoo' zuhn  (zoo@andros.cygnus.com)

        * gprof.c (VERSION): defined a version macro, print the value 
        when the -v option is used

Tue Jul  6 10:11:56 1993  Steve Chamberlain  (sac@phydeaux.cygnus.com)

        * Makefile.in: Install correctly.

Thu Jun 24 14:43:22 1993  David J. Mackenzie  (djm@thepub.cygnus.com)

        * gprof.c (main): Get whoami from argv, instead of hardcoding.
        Use it in usage message.  Split usage message to fit in 80 cols.

Sun Jun 20 20:58:02 1993  Ken Raeburn  (raeburn@poseidon.cygnus.com)

        * Makefile.in: Undo 15 June change.

Wed Jun 16 12:54:53 1993  Steve Chamberlain  (sac@phydeaux.cygnus.com)

        * gmon.h, gprof.h: structs of chars used to hold external
        representations.
        * gprof.c (getpfile, openpfile, readsamples): Swap data in using
        new structures.

Tue Jun 15 23:09:17 1993  Ken Raeburn  (raeburn@cambridge.cygnus.com)

        * Makefile.in (.c.o): Look in ../include, not ../bfd, for bfd.h.

Mon Jun 14 16:22:59 1993  david d `zoo' zuhn  (zoo at rtl.cygnus.com)

        * Makefile.in: remove parentdir support

Mon Jun  7 12:56:17 1993  Per Bothner  (bothner@rtl.cygnus.com)

        * Makefile.in (INCLUDES):  Add -I../bfd for sysdep.h and bfd.h.
        * configure.in:  No longer need to configure to get sysdep.h.

Tue May 18 21:44:11 1993  david d `zoo' zuhn  (zoo at cirdan.cygnus.com)

        * Makefile.in (install): should not depend on install-info

Mon Apr 26 12:37:46 1993  Ian Lance Taylor  (ian@cygnus.com)

        * gprof.h: Include ansidecl.h before sysdep.h.  Undefine hz.

Tue Apr 13 16:14:03 1993  Per Bothner  (bothner@cygnus.com)

        * M Makefile.in:  Add -g to CFLAGS.
        Ads LDFLAGS and use in place of CFLAGS where appropriate.
        * configure.in:  Make a sysdep.hlink in the same way other
        bfd-based directories do.
        * gprof.h (UNIT):  Replace non-standard 'u_short' by 'unsigned
        short'.
        * gprof.h:  #include sysdep.h instead of a bunch of stuff.
        * gprof.c (main):  Fix typo gproff->gprof.

Thu Mar 25 19:00:37 1993  david d `zoo' zuhn  (zoo at cirdan.cygnus.com)

        * gprof.texi: add INFO-DIR-ENTRY

Tue Mar 23 00:03:11 1993  david d `zoo' zuhn  (zoo at cirdan.cygnus.com)

        * Makefile.in: add installcheck target

Sat Feb 27 18:17:10 1993  Per Bothner  (bothner@rtl.cygnus.com)

        * gprof.c (funcsymbol):  Invert test for aflag.

Thu Feb 25 16:01:50 1993  Per Bothner  (bothner@rtl.cygnus.com)

        * printgprof (xmalloc, xrealloc):  Cast results of malloc
        and realloc to PTR.

Wed Feb  3 13:55:33 1993  Jeffrey Osier  (jeffrey@fowanton.cygnus.com)

        * Makefile.in: created info, install-info, dvi

Wed Jan  6 00:58:09 1993  david d `zoo' zuhn  (zoo at cirdan.cygnus.com)

        * Makefile.in: fix install rule for $(PROG)

Fri Oct  9 11:25:41 1992  Mark Eichin  (eichin@cygnus.com)

        * gprof.1: updated SYNOPSIS to match actual behavior.

Mon Oct  5 17:50:16 1992  Per Bothner  (bothner@cygnus.com)

        * gen-c-prog.awk:  New awk script, lightly changed from
        previously deleted make-c-prog.awk.  Converts a text file
        to a c function that prints that text.
        * flat_bl.m, fsf_callg_bl.m, bsd_callg_bl.m:  New files.
        Inputs to gen-c-prog.awk, containing text describing
        gprof output.
        * blurbs.c:  Removed.  Use *_bl.c instead.
        * Makefile.in: Use gen-cprog.awk to generate *_bl.c files
        from *_bl.m files.  Also, improve *clean rules.
        * printgprof.c (printgprof):  Usw new function names from *_bl.c.
        

Sun Aug 30 19:54:53 1992  Per Bothner  (bothner@rtl.cygnus.com)

        * gprof.h, gprof.c, printfgprof.c:  Add support for two
        output styles:  The default is similar to the old FSF gprof,
        while -T sets the variable bsd_style_output, which causes
        output matching Berkeley's gprof.  The biggest differences
        are that with the FSF style output, the flat profile comes
        before the call graph; numbers come before explanations;
        and there is less gratuitous white space.
        * gprof.h, gprof.c, printfgprof.c:  New discard_underscores
        variable causes discarding of initial underscores when
        printing symbol names.  It is set unless there is a "main"
        symbol (without an underscore).
        * printfgprof.c:  New function printnameonly(), called
        by printname().  It handles stripping of initial '_',
        as well as C++ name-demangling.
        * gprof.callg, gprof.flat, make-c-prog.awk:  Removed.
        It is just as convenient to edit blurbs.c directly.
        * Makefile.in:  Removed rule for making blurbs.c.
        * blurbs.c:  This is now a true source file (as opposed
        to being generated from gprof.callg and gprof.flat).
        Change style to use one long string literal, instead of
        one literal per output line.  Add FSF-style blurb for call graph.

Wed Aug 19 14:36:39 1992  Ian Lance Taylor  (ian@cygnus.com)

        * Makefile.in: always create installation directories.

Wed Aug 12 15:14:14 1992  Mark Eichin  (eichin@cygnus.com)

        * Makefile.in: change ${MACHINE} to $(MACHINE).

Sun Jul 19 17:34:01 1992  david d `zoo' zuhn  (zoo at cirdan.cygnus.com)

        * Makefile.in:  removed installation of the now useless
        call.{flag,callg} files.  

        * gprof.1: now uses the standard man macros instead of the new BSD
        mandoc macros. 

Sun Jul 12 19:06:00 1992  John Gilmore  (gnu at cygnus.com)

        * configure.in:  Remove host section, expand target section.
        * config/mt-{tahoe,vax}:  Add, to match existing support files.
        * config/tmake-*:  Remove leftover crud.

        * blurbs.c:  New file, created from gprof.flat and gprof.callg by
        * make-c-prog.awk:  which processes text files into C programs.
        * printgprof.c (flatprofheader, gprofheader):  Call new functions
        to print blurbs.
        (printblurb):  Remove.
        * Makefile.in:  Infrastructure to build blurbs.
        * pathnames.h:  has been removed.  Gprof now has no filename
        dependencies in it.
        * gprof.c:  Lint.

Sat Jul 11 18:07:21 1992  david d `zoo' zuhn  (zoo at cirdan.cygnus.com)

        * Makefile.in: define man1dir and install the man page

Fri Jul 10 21:14:08 1992  david d `zoo' zuhn (zoo@cygnus.com)

        * Makefile.in: added dummy info and install-info targets

Thu Jun  4 11:34:02 1992  Mark Eichin  (eichin at cygnus.com)

        * lookup.c: fixed fencepost in nllookup and added dbg_nllookup for
        help in debugging the problem (with -DDEBUG)
        * gprof.c: symbol values are now real values, don't add the vma
        anymore. (done for solaris; should verify this on other platforms)
        * ChangeLog: created.