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side-by-side code changes report for "Changes": 3.7_vs_3.8beta1
1 Tue May 6 2008 - wnl (3.8beta1)
2 Main code: fixed bugs in screen_cleareol and in display code. Fixed
3 bug in i_swap when all data is 0. Added ^W patch (from thaquis).
4 Fixed bug in xdprintf. Added command line options for the "t" and
5 "m" commands.
6 SunOS 5 changes: Support for showing individual threads. Redid
7 allocation of prpsinfo structures. Added a pidthr hash that uses
8 both pid and thread id for a key. Changed format_process_header
9 and format_next_process to use a table-driven method for generating
10 the columns. Status files from /proc (psinfo and lpsinfo) are now
11 cached to avoid repeatedly reopening them. Column showing number of
12 LWPs is now called "NLWP" and column showing lwpid is "LWP".
13 FreeBSD changes: Runtime check to ensure binary is running on
14 the same machine type it was compiled for. Lots of cleanup and
15 changed nearly everything to use sysctl rather than kvm, and
16 inability to open kvm is no longer fatal. Improved thread reporting:
17 disabled for 7.x and lower. Added lwpid hash for proper tracking
18 of threads. Changed format_process_header and format_next_process
19 to use a table-driven method for generating the columns.
20 Dec Alpha: configure uses compile-time options to properly trap
21 and handle exceptions from the Alpha FPU (from Brian Maly).
23 Tue Feb 26 2008 - wnl (3.7)
24 Prepare for version 3.7 release.
26 Fri Feb 1 2008 - wnl (3.7beta4)
27 Using the $ notation in printf formats for freebsd apparently was
28 causing problems on 64-bit systems. All such usage has been
29 removed and the process line is formatted piecemeal.
31 Thu Dec 27 2007 - wnl (3.7beta3)
32 Improved function comments in display.c for message_error functions.
33 Changed some of the error messages in top.c to be more succint.
35 Fri Dec 7 2007 - wnl (3.7beta3)
36 Changes to freebsd port: moved some functions up front to
37 eliminate forward references. Use sysctl to get all vm stats
38 information, as some of this isn't updated in the struct
39 vmmeter under FreeBSD 7.0. Added routines to support large-scale
40 sysctl access.
42 Wed Nov 28 2007 - wnl (3.7beta3)
43 Changes to documentation: FAQ, README, man page.
45 Tue Nov 27 2007 - wnl (3.7beta3)
46 For freebsd, added page faults, pageins, pageouts, and pages
47 freed to the kernel display line. These numbers reflect the
48 values presented in vmstat. For sunos5, added page faults,
49 pageins and pageouts to the kernel display line.
51 Fri Nov 2 2007 - wnl (3.7beta3)
52 Added copyright notices to the top of every source and include file.
53 Added copyright information to the man page.
54 Removed a few outdated things from the manifest.
55 Minor changes to sigconv.awk.
57 Sat Oct 27 2007 - wnl (3.7beta3)
58 Added check for sys_signame at configure time and if it is
59 present then it is used in commands.c to translate signal names
60 in to numbers.
61 Added alternate snprintf and vsnprintf functions from apache (in
62 ap_snprintf.c). Added configure magic to define and compile them in
63 where needed. Added check to configure for variadic macros.
64 Preprocessor defintion of dprintf (in utils.h) now depends on
65 support for variadic macros. Cleaned up m_linux code.
67 Wed Oct 3 2007 - wnl (3.7beta3)
68 Lots of changes, thanks to Mark Wong. Most changes were to
69 clean the code up so that it would compile cleanly with -Wall
70 (all warnings). Changed function names in screen.c so that
71 they all start with "screen_". Isolated all interaction with
72 termcap to screen.c by adding a real function for cursor
73 addressing (in the past it was just a macro). Only screen.c
74 now needs to worry about defining templates for the termcap
75 functions. Added configure and preprocessor magic to ensure
76 that all the termcap functions used in the code are defined
77 with templates. Changed names of some other functions and
78 global variables to avoid name conflicts with functions in
79 curses and other well established libraries. Changed dprintf
80 macro to use variadic arguments so that the preprocessor can
81 gobble up the entire call when compiling without debugging
82 (this will have to be made more portable). All include files
83 are surrounded by #ifndef statements to accomodate multiple
84 inclusions. Platform module is now compiled with
85 -fno-strict-aliasing as some of the modules do type punning
86 that can confuse the optimizer.
88 Wed Sep 26 2007 - wnl (3.7beta3)
89 For freebsd, priority is no longer normalized by PZERO. This
90 contradicts the behavior used by ps when it displays priority.
91 But normalizing by PZERO has become a bit of an anachronism
92 and it actually obscures the meaning of the priority without
93 adding any real value.
95 Wed Sep 19 2007 - wnl (3.7beta3)
96 Many changes to improve the display of threads. Changed
97 process summary line to use the word "threads" when showing
98 individual threads. Added the system command to toggle the
99 display of system processes. Fixed bug in hash.c remove_pos.
100 For freebsd: count threads correctly when they are being
101 displayed, nice column is more closely in line with ps
102 (nothing fancy for real time processes), add two more process
103 states that didn't exist in older releases of freebsd (wait
104 and lock).
105 For linux: Threads done right. Now track individual threads
106 of multi-threaded processes separately so that we always know
107 their %cpu. Switch to format_process_header so that we can
108 change the column headings and remove the THR column when
109 displaying individual threads. Switched process (and thread)
110 tracking over to use generic hash table functions included
111 with the new version of top. Process states and total now
112 include threads when they are being shown. Added "SHR" column
113 to show the amount of shared memory per process. Improved
114 calculation of elapsed time and percent cpu to avoid
115 overflows. Remove weighted cpu calculations entirely as it is
116 an anachronism.
117 For Solaris: Moved check for libelf to accomodate older systems.
119 Sun Sep 9 2007 - wnl (3.7beta2)
120 Documentation changes. Fixes to sunos5 port. Added display of
121 thread count and selection by command name to linux port. Removed
122 the use of inline functions from hash.c as that doesn't appear to
123 be very portable.
125 Wed Sep 5 2007 - wnl (3.7beta1)
126 Fixed freebsd and linux configuration bugs. Added configuration
127 options for tweaking program defaults. Rewrote top level code
128 (top.c) from scratch, including command handling so that adding
129 new commands is much easier. Changed message-line handling to
130 ensure that the message is displayed for at least 5 seconds
131 regardless of the update frequency. Added a "miniupdate" that
132 occurs one second after the initial screen on systems that don't
133 already delay the first screen. The mini-update shows cpu state
134 percentages. Added ability to select output by command name on
135 some systems. Fixed color toggling via the "C" command. Added
136 long options via getopt_long to complement the existing single
137 character options. Added the freebsd "m" command to chose
138 alternate display modes. On freebsd this gives a process i/o
139 display. Added the freebsd "H" command to select the display of
140 individual threads. Added "-a" option ("all") to set number of
141 displays and number of processes to infinity (equivalent to
142 "-d all all"). Added dual architecture compilation for Solaris
143 to generate both a 32-bit and a 64-bit binary. This is on by
144 default when compiling on a 64-bit system and can be explicitly
145 set via "configure --enable-dualarch". Added uniform hashing
146 functions that use bucket hash for uint, pid, and string. Changed
147 username.c and the sunos and freebsd modules to use these functions.
148 Added the "kernel" information line to the display to show
149 statistics on what the kernel is doing (context switches, forks,
150 traps, etc.). This requires explicit support by the platform
151 module, currently only freebsd, linux, and sunos.
153 Wed Apr 18 2007 - wnl (3.6.1)
154 Fixed a few bugs in sigconv.awk that were causing incorrect
155 results on FreeBSD. Changed configure.ac to fix a few linux
156 problems: signal include file and /proc/1/stat.
158 Fri Apr 13 2007 - wnl (3.6.1)
159 Removed the use of VPATH for compiling the system module and used
160 an explicit dependency in the Makefile instead. VPATH is now set
161 to just srcdir to ensure that top will compile correctly when
162 configured from a different directory. On systems without VPATH
163 support, top will still configure and compile, but only
164 from within the source directory. This fixes bug 1699526.
166 Fri Feb 2 2007 - wnl (3.6.1)
167 Revised the way that configure figures out owner, group, and mode.
168 For systems that don't use the kernel, it tries to match install
169 settings to allow access to stuff in /proc. More importantly, if
170 mode is 755 then neither owner nor group are set. This fixes bug
171 1631136. Added patch from email@example.com to fix an occasional
172 core dump in m_decosf1.c. This checks return code from task_threads.
173 Made sure all get_system_info functions are declared void. Fixed
174 string termination bug. Cleaned up documetation for sunos5.
176 Tue Aug 8 2006 - wnl (3.6.1)
177 For Solaris, changed the tag "swap" to "total swap" to clarify
178 what is beign displayed. Note that the calculations are still the
179 same: the display is just showing total rather than total - free.
181 Thu Apr 27 2006 - wnl (3.6)
182 Added patches for linux-style sort shortcuts and for Unixware
183 support in configure (patch 1474427). Fixed sunos5 to do slow start
184 and to ensure cpucount is set (patch 1477386). Added pagination
185 routines to display.c and modified show_help to use it, since the
186 help screen is now longer than 24 lines. Applied patch for unixware
187 support that adds check for mas library (patch #1474423). Solaris
188 cpu percent now reflects a percentage of the entire server, rather
189 than a single cpu (bug 1478138).
191 Mon Mar 27 2006 - wnl (3.6)
192 The production release of version 3.6. Fixed a minor scaling
193 bug in the decosf1 module. Support for MacOS X is officially
194 withdrawn although the macosx module is still part of the
195 distribution. Hopefully this is a temporary situation.
196 Documentation updated.
199 Wed Feb 15 2006 - wnl (3.6beta5)
200 Minor changes to eliminate warnings from the Sun Studio compiler.
201 These were mostly sloppy argument declarations. I also added
202 message.h to provide an interface file for just the message
203 related functions of display.c.
205 Mon Dec 26 2005 - wnl (3.6beta4)
206 Added new netbsd module, courtesy of Simon Burge.
207 Fixed a few bugs in SVR4 module and added its use to
208 configure.ac, thanks to Sanchet Dighe. Also ensured that the
209 novpath Makefile was in the distribution.
210 Fixed portability problem in display.c
213 Mon Oct 24 2005 - wnl (3.6beta3)
214 Set up a color tagging mechanism in color.c to allow for the
215 dynamic creation of tag names to contol color highlighting.
216 These names are partially derived from the tags used to label
217 memory and swap information on the screen, thus are driven by
218 the machine module itself. Added -T option to list color
219 highlighting information. Help screen now includes the actual
220 list of sort order names. Incorporated some minor fixes to
221 the main code from the Freebsd source tree. Fixed bug #1324582.
222 Freebsd 5: removed WCPU column and added THR column. Display
223 for freebsd 4 and earlier unchanged since they don't track
224 threads in the kernel. Added LICENSE file to distribution.
226 Wed Oct 12 2005 - wnl (3.6beta2)
227 Major overhaul to display.c. All lines of the display are
228 directly tracked and controlled via display_write and its
229 companion display_fmt. Added support for complete control
230 of ANSI color on the screen: this will be used in the future
231 to allow for full use of color everywhere on the screen.
232 Signal handling code now uses sigaction on all systems that
233 support it. Restored the freebsd module and did away with
234 freebsd4, and upgraded freebsd module to support 5.x.
235 Fix bug #1306099 (wio(wait) timer ignored on OSF1).
237 Fri Sep 23 2005 - wnl (3.6beta1)
238 Fixed bugs #1266341 (compilation errors with gcc 4.x),
239 #1156464 (cpu% field for sunos), #1156243 (compilation
240 errors on AIX). Applied patches #1217855 (Solaris 10
241 xarch flag). Overhaul of sunos5 module, making code more
242 efficient and easier to follow. Got rid of need for MEMTYPE
243 type in utils.h. Changed all memory statistics data in the
244 module specification from an int to a long to better support
245 64-bit systems with lots of memory. Moved all unused modules
246 out of the distribution (I will add them back in as needed).
247 Moved freebsd module to freebsd4 as it won't work with 5.x
248 (a new module will be necessary). Added support to configure
249 for makes that don't understand VPATH. Updated documentation:
250 man page, FAQ, README, INSTALL.
252 Mon Jan 24 2005 - wnl (3.6alpha10)
253 Updated aix43 module with ANSI function declarations and fixed
254 declaration of get_system_info. Configure now uses irixsgi
255 module for irix6* systems. Updates to the following modules:
256 irixsgi, sunos5. Fixed null pointer bug in color.c. Removed
257 some useless code and definitions in display.c
260 Sun Nov 28 2004 - wnl (3.6alpha9)
261 Replace AIX 5 module with alternate (bug 1056565).
262 Fixed vulnerability in use of snprintf.
264 Fri Oct 22 2004 - wnl (3.6alpha8)
265 Support for linux 2.6, added more stuff to memory and swap lines.
266 Updated linuxthr module, which is only useful on 2.4 and earlier.
267 Added some color support back in (feature request 930588), but
268 still need to add it back to the per-process display. Added
269 OSF 5 support (untested).
270 Fixed bug 1017951 (invalid process count argument not caught)
272 Tue Apr 20 2004 - wnl (3.6alpha7)
273 Added 64 bit support for AIX.
275 Thu Apr 15 2004 - wnl (3.6alpha6)
276 Included fixes for decosf1 pid size and updated module. Also
277 added osf1 to list of recognized operating systems in configure.ac.
279 Tue Mar 30 2004 - wnl (3.6alpha5)
280 Minor bug fixes and some code rearrangement. Changes to install
281 rule. Added several more platforms including: aix 4.2 thru 5,
282 MacOS 10, Dec OSF, HPUX 7 thru 11. Fixed the core dumping bug
283 in linux. Code cleanup, including sigdesc.h (by changing
284 sigconv.awk). Startup error messages are displayed on the
285 first screen rather than beforehand (no more pause). Cleaned
286 up interrupt handling to avoid a race condition. Eliminated
287 top.local.h. REMOVED Configure!!!
289 Mon Mar 22 2004 - wnl (3.6alpha1)
290 Now using gnu autoconf. Eliminated the need for CFLAGS and LIBS
291 tags in the module source files. Autoconf tries to figure all
292 that out now. Machine module interface now uses flags to determine
293 if module supports sorting, selective display of idle processes,
294 viewing full commands. Added display of uptime for modules that
295 support it. Added display of full command lines for modules that
296 support it. 3.5 modules must be changed a bit to work for 3.6:
297 ORDER is no longer defined, and the module must fill in the
298 appropriate fields in struct statics to get the extra features.
299 Added a extenstion interface to allow for putting extra stuff
300 on the screen -- this is still half baked and not documented.
302 Mon Feb 23 2004 - wnl (3.5)
303 Turned rc1 in to version 3.5. Only changes were to the FAQ.
305 Mon Feb 2 2004 - wnl (3.5rc1)
306 Changed format_k (utils.c) to use MEMTYPE for its parameter.
307 On most systems this is a long, but if the module defines
308 USE_SIZE_T, this is set to be a size_t. The sunos5 module
309 now defines it, so that it will work correctly on 64-bit
310 machines. New "linuxthr" module for rolling up processes
311 that are really threads. Configure autodetects when running
312 on a 64-bit Solaris machine.
314 Tue Dec 16 2003 - wnl (3.5beta13)
315 Improved linux module. For Solaris, changed "THR" column
316 heading to "LWP" since that's what they really are.
318 Thu Mar 30 2000 - wnl (3.5beta12)
319 Updated modules: m_aix41.c, m_aix43.c, m_mtxinu.c, m_sco5.c,
320 and m_ultrix4.c.
321 Included m_irixsgi.c from some source that's been floating around
322 SGI. Don't yet know how it compares to m_irix62.
324 Fri Mar 10 2000 - wnl (3.5beta11)
325 top.c: avoid potential loop if stdout gets closed, use macro
326 for p_active to avoid collision with system macros.
327 m_sunos5: widened some fields to accomodate 5.8.
328 m_decosf1: added ordering support
329 m_irix62_64: provides 64-bit module based on m_irix62.
330 m_irix62: skip bogus files in /proc directory
331 m_svr42MP and m_svr5: complete replacement with updated copies
332 m_mtxinu: complete replacement with updated copies
333 m_aix43: new module for 4.3
334 getans: replaced with a Bourne shell script
336 Mon Mar 6 2000 - wnl (3.5beta10)
337 m_sunos5.c: workaround for curses bug: ensure that TERMINFO has
338 a value.
340 Fri Jan 15 1999 - wnl (3.5beta10)
341 top.c: now check return code from read to avoid looping on eof.
342 top.c: delay of 0 now only valid for root.
343 decosf1.c: patches from Rainer Orth should fix most of the
344 problems with this module (including the display of certain
345 processes and runtime errors).
346 sunos5.c: Rainer insisted on putting the slash back in the
347 state field ("run/4") and widened the field to accomodate it.
348 aix.c: widened PID field for 6-digit pids (shortened NICE field)
349 module macosx added, thanks to Andrew Townley.
351 Fri Dec 18 1998 - wnl (3.5beta9)
352 Configure checks status of "make" and complains if it fails.
354 Thu Dec 17 1998 - wnl (3.5beta9)
355 Added module sco5 from Mike Hopkirk.
356 Added module netbsd132 from moto kawasaki.
358 Sun Oct 25 1998 - wnl (3.5beta9)
359 Added Casper's patches for sunos5 for the following:
360 produce same results as swap -s (5.5 and higher),
361 don't use system_pages kstat when /dev/kmem can be opened,
362 skip . and .. when reading /proc, replace use of SOLARIS24
363 with OSREV.
365 Fri Sep 11 1998 - wnl (3.5beta9)
366 Added workaround to getans for the absence of $< in SCO Unix.
368 Wed Jul 1 1998 - wnl (3.5beta9)
369 Changed structure member "errno" to "errnum" in commands.c.
370 Replaced hpux10 module with one from John Haxby.
372 Fri Apr 17 1998 - wnl (3.5beta8)
373 Moved definition of _KMEMUSER earlier in m_sunos5.c. This should
374 fix the compilation problem with gnu 18.104.22.168, obviating the need
375 for the fixinc.svr4 patch, but hopefully will not affect anything
377 Added -DORDER to m_sunos4mp.c
379 Tue Nov 18 1997 - wnl (3.5beta7)
380 Added gcc 22.214.171.124 patch for fixinc.svr4 and changed INSTALL and
381 FAQ to refer to it.
382 Added NetBSD HP9000 fix. Hopefully it doesn't break other
383 NetBSD platforms.
385 Fri Oct 24 1997 - wnl (3.5beta7)
386 Modified m_dcosx.c to change uses of procdir to xprocdir, avoiding
387 a name clash with an include file (Bryn Parrott)
389 Sat Oct 11 1997 - wnl (3.5beta6)
390 Incorporated Casper's patches for Solaris 2.6 and for the multi-
391 processor bug ("kstat finds too many cpus").
393 Sun Jan 20 1996 - wnl (3.5beta5)
394 Fixed Casper's m_sunos5 module: there was a poor interaction with
395 his use of OSREV and SunOS 5.5.1.
397 Fri Dec 20 1996 - wnl (3.5beta4)
398 Replaced m_sunos5 with a reworked version by Casper Dik. This one
399 should work under 2.6 and may not require that top be run setuid
400 to root under 2.5 or 2.6. This also fixed a bug in m_sunos5 that
401 was introduced in beta3.
402 Fixed calculation of OSREV in Configure.
404 Wed Nov 20 1996 - wnl (3.5beta3)
405 Incorporated contributed fixes to: bsdos2, irix62, freebsd20,
406 ultrix4, sunos5. Changed calculation of swap area in sunos5 (now
407 uses swapctl). sunos5 now understands idled processors. Changed
408 Configure to determine os revision using uname (when available)
409 and adding it to machine.c compiliation in Makefile as -DOSREV.
410 Changed calls to "exit" in modules to use "quit" instead.
412 Oct 20 1996 - wnl (3.5beta3)
413 Removed "time" from list of ordering choices: there's no easy way
414 to get cpu time for all processes (it's in the u area).
416 Fri Oct 18 1996 - wnl (3.5beta3)
417 hpux10 and hpux9: using a better means for determining when a
418 process is idle.
419 decosf1 now includes utils.h.
421 Fri Sep 13 1996 - wnl (3.5beta2)
422 Fixed Configure to build Make.desc in such a way that doesn't
423 require a long argument to sed.
425 Thu Sep 12 1996 - wnl (3.5beta2)
426 Fixed bug in display.c that affected empty cpustate names.
427 Created hpux1010 module - a variant of hpux10 that does not use
428 struct proc or struct user (suitable for HP/UX 10.10).
430 Wed Sep 11 1996 - wnl (3.5beta2)
431 Changes to sunos5 module: Removed WCPU column since it is meaningless
432 on a SVR4-based system. Added THR column to show number of threads
433 for each process. This was not straightforward: the information is
434 not stored in prpsinfo but rather in prstatus.
436 Tue Sep 10 1996 - wnl (3.5beta1)
437 Added patches for sunos4mp to provide order support.
438 Added irix62 module.
439 Changed prime.c to include stdio.h for printf prototype.
440 Added conditional code to os.h and utils.c to handle systems
441 where sys_errlist is defined in stdio.h (such as NetBSD).
443 Mon Sep 09 1996 - wnl (3.5beta1)
444 Removed tar and shar rules from Makefile.X -- don't need them anymore.
445 Added -v option to display version number. Updated man page.
447 Thu Aug 29 1996 - wnl (3.4)
448 Replaced modules (from Tim Pugh): next 32, next40.
449 Fixed bug in username.c: hashing negative uids.
451 Thu Aug 22 1996 - wnl (3.4beta3)
452 Patched modules: ultrix4, sunos4, sunos5, utek, decosf1, irix5.
453 Added modules: next40, next32.
454 Fixed procstates update bug in display.c.
455 Fixed divide by zero bug in utils.c.
456 Fixed bad number in layout.h
457 Minor fixes to Configure.
458 Complete overhaul of FAQ.
460 Tue Feb 13 1996 - wnl (3.4beta3)
461 Added convex module from Warren Vosper (originally written by
462 William Jones).
464 Tue Feb 13 1996 - wnl (3.4beta2)
465 Fixed format_k in utils.c to calculate K and M values correctly.
466 Added check for gigabyte values ('G'). Changed sumamry_format
467 in display.c to use format_k where appropriate.
468 Changed creation of distribution tar file to place everything in
469 a top level directory.
471 Tue Jan 30 1996 - wnl (3.4beta2)
472 Added m_aix41 module. Added new tag type to module comments:
473 TERMCAP, which defined the library to use for a termcap library.
474 If no TERMCAP tag is found in the module's initial comment, then
475 Configure will default to "-ltermcap". AIX needs this since it
476 put all the termcap routines in libcurses(!)
478 Added m_bsdos2 (found lingering in my mailbox).
479 Updated m_svr4 to include support for NCR multiprocessors.
480 Fixed small bug in utils.c
482 Thu Jan 25 1996 - wnl (3.4beta1)
483 Fixed m_sunos5 invocation of gettimeofday to include "NULL" as
484 second argument. This provides compatability with the Posix-
485 compliant template provided with SunOS 5.5, but doesn't hurt
486 previous versions since they do bother with a template for that
489 Made changes (recommended by net users) to hpux10, ultrix4,
490 netbsd10, aux3 (replaced aux31). Added module for linux.
492 Fri Oct 10 1995 - wnl (3.4beta1)
493 Added user-contributed modules for SCO Unix, IRIX 5, HP/UX 10,
494 Pyramid DC/OSX. Changed Configure so that it runs in environments
495 whose c-shells have no 'eval'(!). Added support for multiple sort
496 ordering methods via the -o switch. This option requires support
497 from the machine dependent module: such support was added to
498 sunos5 (thus sunos54) and sunos4.
500 display.c: Changed CPU states display line to shorten the leading
501 tag if the data won't fit in the current width. Fixed a divide-by-
502 zero bug that affected ultrasparc servers (and potentially other
505 m_sunos5.c: Now asks the system for the correct pagesize rather than
506 assuming it is 4K.
508 Thu Mar 2 1995 - wnl (3.3 RELEASE)
509 Added module netbsd10 and renamed netbsd to netbsd08. Changed
510 Configure so that it does not use an initial default module name.
511 Made other compatability fixes to Configure. Added comments to
512 decosf1 concerning optimizer bug. Other documentation changes.
513 Added use of "prime.c" to Configure script.
515 Tue Feb 7 1995 - wnl (3.3beta6)
516 Still one more beta....
517 Fixes for sunos5 2.4 gcc core dump (it was an alignment problem).
518 Fixed and improvements for decosf1 (including use of format_k
519 for proper SIZE column formatting). Added modules freebsd20 and
522 Thu Feb 2 1995 - wnl (3.3beta5)
523 One more beta....
524 Fixed a few bugs in the sunos5 port pertaining to casting and
525 very large memory counts. Added "ifndef HAVE_GETOPT" to getopt.c
526 to provide for conditional compilation of the getopt function.
527 Those systems that have getopt in libc can add -DHAVE_GETOPT to
528 the CFLAGS line in the module to prevent the function from being
529 compiled. Added sunos54 module to accomodate SunOS 5.4
530 peculiarities. Added module for aux3.1.
532 Wed Jan 4 1995 - wnl (3.3beta4)
533 This is really taking too long......sigh.
534 Fixed SIGWINCH handling once and for all. It now remembers the
535 number of processes you want displayed even thru window resizes.
536 Fixed buffer conflict in utils.c (itoa and itoa7).
537 Lots of small improvements to the various modules were made over
538 the past month: too numberous to list here. SunOS 5 module made
539 more secure thru use of seteuid calls (other SVR4 modules should
540 be modified similarly). One final MP fix to sunos5, too. Module
541 for decosf1 was modified to accomodate V3.0.
543 Mon Apr 18 1994 - wnl (3.3beta3)
544 I think I finally got a sunos5 module that will work on MP
545 machines. Fixed cpu states figure in osmp41a so that
546 percentages never exceed 100%. Added shell script "install"
547 since Unix vendors can't seem to make up their minds on what
548 options they want to use for the one that comes with the OS.
549 Added netbsd modules from Christos. Fixed lots of other little
550 things over the past few months that I have long since forgotten.
552 Wed Dec 15 1993 - wnl (3.3beta2)
553 Added module patches from various users: hpux9, sunos5.
554 Fixed bug with batch mode (screen_width wasn't getting set).
555 Changes to accomodate 64 bit machines.
556 Fixed some bugs in command parsing ("renice 19 " did something
559 Mon Aug 30 1993 - wnl (3.3beta)
560 Added lots of little patches from various users.
561 Added routines to utils.c for intelligent formatting of kilobytes
562 and time. These are intended to be used in the modules when
563 formatting a process line. Added code to "summary_format" in
564 display.c to do intelligent formatting of memory quantities.
565 Redid display.c to allow for varying line widths and dynamic
566 reallocation of the screen buffer.
567 Added a SIGWINCH handler to top.c!
568 Added a constant, MAX_COLS, to top.h which defines the absolute
569 widest line we will ever allow. Changed allocations of "char fmt"
570 in all machine modules to use this constant rather than an abitrary
573 Fri Aug 13 1993 - wnl (3.3)
574 Changed return value definition of time-related functions in top.c,
575 display.c, and m_ultrix4.c to time_t (firstname.lastname@example.org).
576 Fixed bug in display.c: line_update when start != 0.
578 Wed Aug 4 1993 - wnl (3.2 release)
579 Changes to Configure from Paul Vixie. Added modules for hpux9 and
582 Tue Jul 13 1993 - wnl (3.1 release)
583 More small changes and minor bug fixes. Brought bsd44 up to date
584 and added a module for svr4.2. Changed shar packaging to use Rich
585 Salz's cshar stuff.
587 Wed Jul 7 1993 - wnl (3.1BETA)
588 More changes and bug fixes to Configure. Applied some other
589 minor bug fixes and suggestions from the beta testers. Added
590 the "metatop" shell script and the "installmeta" rule to the
591 Makefile to make handling multiple machine models and OS versions
592 easier. Added INSTALL and FAQ files.
594 Tue May 18 1993 - wnl (3.1BETA)
595 Changed Configure to be compatible with most SVR4 environments
596 (differing output from "ls -lg"). Also changed Configure,
597 Makefile.X, etc., to look for module files in the subdirectory
598 "machine" (thanks to Christos Zoulas).
600 Tue Apr 20 1993 - wnl (3.1BETA)
601 Changed both occurences of "ls -1" in Configure to "ls". This
602 SHOULD produce the same result, and has the advantage that it
603 doesn't produce an error on a system 5 machine. Integrated other
604 changes recommended in the first round of beta testing.
606 Wed Mar 10 1993 - wnl (3.1BETA)
607 MAJOR CHANGE: I have added a required function to all machine
608 dependent modules, called proc_owner. It takes a pid as an argument
609 and returns the uid of the process's owner. Such capability is
610 necessary for top to run securely as a set-uid program, something
611 that is needed for SVR4 implementations to read /proc. I have
612 retrofitted all modules except dgux with this function, but was
613 not able to test most of them. Top should now run securely as
614 a setuid program. Added 386bsd and sunos5 modules. Added sunos4mp
615 module for MP Suns.
617 Sat Feb 20 1993 - wnl (3.1ALPHA)
618 Modified top.c and commands.c to compile correctly on System V
619 derived Unixes (especially SVR4), but in a way that doesn't rely
620 on an oracle-like declaration (that is, I don't use "ifdef SYSV").
621 Fixed some bugs in "Configure" and "getans". Added inspection of
622 env variable "TOP" for options, and made -I default to showing
623 idle processes. Added "u" command to change username restriction
624 on the fly. Created shell script "suntop" for poor multi-version
625 SunOS folks (like myself).
627 Wed Jun 3 1992 - wnl (3.0)
628 "max_topn" wasn't being used everywhere it was supposed to be
629 in top.c. Many cosmetic changes, including copyright notices in
630 all the .c files. Version number is now handled by version.c and
631 reflects the current patchlevel (which is initially set to 0).
632 Changed Configure and Makefile to allow configurable variables for
633 certain commands: shell, cc, awk, install. Updated README and
634 Porting. Ready to release to the world!
636 Mon May 18 1992 - wnl (2.9BETA)
637 Added modules provided by Christos Zoulas. Replaced screen.c
638 with one modified by Christos and that will appropriately select
639 and handle the sgtty, termio, or termios system. Integrated many
640 other changes recommended by Christos. Fixed (I hope) the "-b"
641 batch mode display bug. Had to change loadavg to load_avg to avoid
642 a conflict with 4.4BSD.
644 Mon Apr 27 1992 - wnl (2.8BETA)
645 Added modules provided by Daniel Trinkle. Added patchlevel.h,
646 but the patch level is not yet reflected in the version number.
647 Cleaned up m_sunos4.c a little.
649 Wed Apr 22 1992 - wnl (2.8BETA)
650 Major internal reorganization. All of the system dependent stuff
651 is now really and truly separated from everything else. The
652 system dependent functions are contained in a separate .c file
653 called a "module". The Configure script knows how to find and
654 set up these modules, but the human installer still needs to tell
655 Configure which module to use (no automagic determination of
656 machine type---sorry). Added -U option to specify one user's
657 processes, but there is no corresponding command...yet. Other
658 changes and improvements too numerous to mention here. Currently
659 there are only two modules: sunos4 and umax. But after this beta
660 release is sent around, I expect more to be written. I just hope
661 that the machine-dependent abstractions don't need to change in
662 the process.
664 Thu Mar 26 1992 - wnl (2.7BETA)
665 Beta release with minimal architecture support. Updated README
666 and added a first cut at a Porting guide. Added ioctl TIOCGWINSZ
667 code from top2.5+ (courtesy of David MacKenzie). I didn't even
668 try porting the Ultrix support since I don't have access to an
669 Ultrix machine.
671 Fri Oct 11 1991 - wnl (2.6)
672 This version was not widely released. It contained many changes.
673 Here are the major ones:
675 Put in Vixie's idle process hack.
677 Enhanced type field in new_message to handle delayed messages.
679 Changed u_process to automatically adjust for varying lines of
680 output. Management of screenbuf should now be completely contained
681 in display.c. Removed now extraneous code from CMD_number
682 portion of command switch in top.c. This was the stuff that dealt
683 with zeroing out lines in screenbuf.
685 Finally made it all work correctly on a 386i. Problems I had to
686 overcome: kvm_nlist doesn't return 0 on success as advertised (it
687 returns 1 instead); the results of a kvm_nlist are different
688 (n_type can be zero even for a symbol that exists).
690 Serious rearrangement for processor dependent stuff. All nlists
691 are now in separate files with the suffix ".nlist". Most machine
692 specific code is in "machine.c" surrounded by appropriate ifdefs---
693 the goal is to eventually have all machine specific code in this
694 file. Managed to find a way to detect SunOS 4.x at compile-time:
695 this is contained in the include file "sun.h". Completely changed
696 the memory display line for SunOS 4.x---it now displays a far
697 more appropriate report.
699 Created the shell script "Configure" to aid in the configuration
702 Fixed a bug in init_termcap: it will now tolerate an environment
703 which does not have TERM defined (thanks to Sam Horrocks for
704 pointing this out).
706 Tue Aug 9 1988 - wnl (2.5)
707 Added changes to make top work under version 4.0 of the Sun
708 operating system. Changes were provided by Scott Alexander of the
709 University of Pennsylvania. Thanks! Compile with "-Dsunos4" to
710 get them. Virtual memory statistics are not readily accessible
711 under 4.0, so they don't show up in the output.
713 Thu Jul 31 1987 - wnl (2.4)
714 Fixed a problem with the 4.0 Pyramid code. The label "cp_time"
715 doesn't exist in the 4.0 kernel anymore. I think the code Carl
716 sent me wants "percpu" instead. That is what I am using and it
717 appears to work. 375 code is still untested (at least by me).
718 Also picked a great deal of lint out of the source. Lint now only
719 complains about a very few nitpicky things (there are far too many
720 calls to "printf" to put a "(void)" in front of!), at least under
723 Tue Jul 28 1987 - wnl (2.4a)
724 Added changes for a Symmetrics Computer Systems s/375 machine.
725 Changes were provided by Paul Vixie. Thanks! According to Mr.
726 Vixie: "These changes were not made at, by, or for SCS proper.
727 SCS would probably be interested in them, but so far only the
728 users' group has them. They were made in February, 1987, to
729 version 2.1 of the program, by Paul Vixie
730 (dual!ptsfa!vixie!paul@ucbvax.Berkeley.EDU)." His changes were
731 integrated into version 2.3 to make version 2.4.
733 The SCS peculiarities are summarized in Changes.scs.
735 Tue Jun 9 1987 - wnl (2.3 for real)
736 Changed the includes for the extra code Carl sent me to only
737 compile on Version 4.0 Pyramid machines. This makes top still
738 compilable on pre-4.0 Pyramids. Specifically, this code is only
739 compiled when both "pyr" and "CPUFOUND" are defined.
741 Wed Jun 3 1987 - wnl (2.3 with Pyramid additions)
742 It's been a month and I still haven't done anything about
743 distributing this version. However, Carl Gutekunst from Pyramid
744 has sent me some extra patches for some of the Pyramid code. I
745 just added those and will make them part of 2.3. This fixes the
746 following Pyramid problems: adds the inclusion of <sys/systm.h>,
747 uses the correct size for getting the kernel value _ccpu (this bug
748 affected the Vax version as well), sums the elements of the percpu
749 array to calculate a cp_time value (for OSx 4.0).
751 Fri May 1 1987 - wnl (2.3)
752 I have finally finished all the changes for better support of
753 oddbal terminals. Added the low-level routine "clear_eol" which
754 makes handling terminals without "ce" easy: it uses spaces
755 instead. All direct uses of "clear_line" outside of screen.c have
756 been changed to use this primitive. A terminal with "os" is now
757 handled in such that all situations that need overwriting are
758 completely avoided (including several commands). This required
759 some changes to the way commands are translated into action (in
760 "top.c"). Made several important changes to display.c to prevent
761 overflowing of any of the fields. Specifically, more than 99
762 total processes and a cpu state that reaches 100%. Had to make a
763 small change to two casts in top.c, because the Sun 3.2 compiler
764 was giving warnings on them. Added the "-q" option which lets
765 root run top at a nice of -20 (in case he thinks he really needs it).
767 Tue Dec 30 1986 - wnl (2.2)
768 I think I fixed a bug reported by Julian Onions at Nottingham.
769 Occasionally, top will core dump when the sprintf in either
770 i_process or u_process overflows due to an exceptionally
771 unrealistic time value. I think it highly unlikely that top can
772 get a bad proc structure (although I suppose it is possible), but
773 the process time is read from the user structure, and that can
774 sometimes be part garbage. So, "get_ucpu" checks the value it
775 returns to make sure its formatted form will not overflow the
776 sprintf. If this doesn't fix the bug, then more drastic measures
777 will be necessary. I plan to make this version the official
778 "top 2.2". [[ This version was never distributed very widely. ]]
780 Tue Dec 2 1986 - wnl (2.2c)
781 Added to top.c the notion of a "failed command". When a command
782 produces a message (on the message line), an update does not
783 follow it. Before, the message was written and a new display was
784 shown---purposefully not overwriting the message. But the
785 improvements to handle overstriking terminals and terminals
786 without "ce" clear the screen before every display, which would
787 erase the message. Now, the message is displayed and top waits
788 another full time interval before updating the display. This
789 works much better all around.
791 Mon Nov 24 1986 - wnl (2.2b)
792 Created a new file, utils.c, and made appropriate changes to
793 Makefile. This new file holds all utility functions that can and
794 may be used by more than one "module". Improved i_memory and
795 u_memory (display.c) so that screen updates for the values
796 displayed are only changed when necessary. Also made the line
797 look better: the last fixes made for a rather ugly display.
798 Added the locally defined constant "LoadMax" and added code to
799 top.c to send the cursor home after a space command is entered if
800 the load average is higher than "LoadMax". This provides visual
801 feedback on loaded systems.
803 Mon Nov 3 1986 - wnl (2.2a)
804 Widened the format for memory usage so that it can display 5
805 digits. This makes that line look a little ugly---maybe I'll fix
806 that later. Screen handling now understands "os" and a missing
807 "ce". It treats them identically: clear the screen between each
808 display. Screen handling code now uses "cd" when appropriate
809 (i.e.: when user has shortened the screen). Made i_loadave clear
810 then screen and took out most of the explicit calls to "clear" in
811 top.c. This method is cleaner, especially in conjunction with
812 "os" handling. Added preprocessor variable "RANDOM_PW" for
813 systems that access the passwd file randomly (Sun's yp and 4.3).
814 With "RANDOM_PW" set, "getpwuid" is used instead of "getpwnam",
815 but uid->username mappings are still hashed internally (because
816 that is still faster than going to disk).
818 Mon Oct 6 1986 - wnl (2.1)
819 A bug with the kill command was pointed out by "dciem!tim"---
820 specifying a signal by name did not work correctly. This bug has
821 been fixed with a simple change to commands.c. Another bug made
822 the cpu state percentages incorrect the first time they were
823 displayed. This bug has also been fixed (changed top.c).
825 Thu Sep 4 1986 - wnl (2.0, at last)
826 This is the version that will (hopefully) get released to the
827 world as top 2.0.
828 Added the "r" and "k" commands for renice and kill, respectively.
829 This required adding a way to handle system call errors, and the
830 addition of the "e" command. Help screen and manual page were
831 changed to reflect this change. Changed all "#ifdef SUN" directives
832 to "#ifdef sun", and changed all "#ifdef PYRAMID" directives to
833 "#ifdef pyr". As much as I hate those choices of preprocessor
834 names (they too easily conflict with real variable names), it does
835 make automatic compilation possible---people don't have to change
836 the Makefile anymore for specific machines. The manual page was
837 changed to automatically incorporate the defaults as set in the
838 Makefile (including an infinite value for TOPN) and the way the
839 manual page is generated by the Makefile was changed to make
840 maintenance of this information automatic.
842 Mon Jul 28 1986 - wnl (still pre 2.0)
843 Real close now. I put in a new definition for the macro "pagetok"
844 that does an explicit shift of a constant expression involving
845 PGSHIFT. Appropriate checks are made if PGSHIFT is to small.
846 "pagetok" is now used exclusively everywhere to convert kernel
847 clicks to kilobytes. I added a full blown interactive mode with
848 the ability to change some of the runtime parameters (how many to
849 display, time delay, etc.) while top is running. I also
850 incorporated a few ideas from the net: control characters in the
851 command name are replaced with '?'; the '-S' option makes the
852 swapper and pager visible; options have been added to control the
853 number of displays produced (this makes it easier to make
854 performance snapshots with top). I have also added the notion of
855 "infinite" values for number of processes and number of displays.
856 I fixed a long-standing bug in the uid to username mapping code
857 that was only aggravated on the pyramids: it was an ill-defined
858 expression (akin to i = i++). I tweaked the proc_compar routine
859 for qsort slightly so that stopped processes were more likely to
860 show up. Manual page was updated to reflect all changes
861 noticeable to the user.
863 Tue Jul 1 1986 - wnl (pre 2.0 -- 1.9999?)
864 In the process of major revamping on the way to version 2.0.
865 I have completely done away with curses by adding my own screen
866 management routines in a separate file (screen.c). The rationale
867 for this is that top knows a whole lot more about what is and is
868 not redundant on the screen and can compare simple integer values
869 where curses would have to compare strings. This has turned out
870 to be a very big win speed-wise. The proc_compar routine for
871 sorting has been rewritten to include several more keys. I
872 decided this was necessary when I noticed that the "top" process
873 itself kept disappearing off the top 10 list on a Sun-3. All the
874 processes had the same percentage (0%) and the sort wasn't really
875 doing anything worthwhile. I changed the expression that computes
876 memory usage to use the ctob macro instead of just assuming that
877 pages were 512 bytes. More work still needs to be done before
878 this version is usable. I changed options-processing to use
879 getopt and added appropriate incantations to the Makefile.
881 Wed Feb 20 1985 - wnl (still 1.8)
882 Put in the ifdef FOUR_ONE statements to make top still compilable
883 on a 4.1 system. Apparently, there are some users out there that
884 need this functionality. Oh well. I don't guarantee any of it,
885 since I can't test it. Made appropriate changes to README and
886 final installation related changes to Makefile.
888 Sat Feb 2 1985 - wnl (1.8)
889 Removed all the ifdef FOUR_TWO statements and made "top" into a
890 4.2 only program. If someone really wants to still run it on 4.1,
891 then they can do all the work. We don't have a 4.1 machine
892 anymore, so I don't even know if the thing still works under 4.1.
893 Cleaned up the Makefile and the README. Added installation rules
894 to the Makefile, as requested by several sites. Fixed a very
895 obscure divide-by-zero bug. Added a second "key" to the qsort
896 comparison function (proc_compar) so that comparisons are based on
897 cpu ticks if the percentages are equal (provided by Jonathon
898 Feiber at Sun).
900 Tue Dec 11 1984 - wnl (1.7)
901 Added the virtual and real memory status line to the header area
902 (provided by Jonathon Feiber at Sun)
904 Tue Nov 20 1984 - wnl (1.6)
905 Added an "exit" if sbrk's fail. Added changes from Jonathon
906 Feiber at Sun: ifdef SUN to make top work on Suns (they don't use
907 doubles in the proc structure), register declarations, check for
908 getting a user structure that has disappeared since the proc array
909 was read (it used to die, now it just shows the process as swapped).
911 Tue Nov 13 1984 - wnl (1.5)
912 If the number of displayable processes ("active_procs") was less
913 than the number of requested processes ("topn"), top would
914 segmentation fault. This bug has been fixed. Thanks to Prentiss
915 Riddle at ut-sally for pointing out the existence of this bug.
917 Tue Oct 23 1984 - wnl (1.4)
918 Finally fixed the hash table bug that caused processes owned by
919 root to sometimes appear with either no name or a different name
920 that had UID 0 (such as "operator"). Removed all the ifdef DEBUG
921 blocks to make top ready for distribution to the real world.
923 Sun Apr 8 1984 - wnl (still 1.3)
924 Made some slight changes to the display format. It now looks more
925 aesthetically pleasing. Added some preprocessor constants so that
926 the two defaults (number of processes and seconds of delay) easier
927 to change.
929 Thu Apr 5 1984 - wnl (1.3)
930 Changed the order in which things are done at initialization time.
931 This way, if an error occurs before starting the main loop, curses
932 will never get started. Also changed other error handlers so that
933 endwin() is called before any flavor of exit. Specifying a number
934 of processes that is more than the screen can handle is no longer
935 fatal. It displays a warning message and pretends the user
936 specified the maximum for the screen. Finally cured all the TSTP
937 blues (well, almost all). I removed my TSTP handler and convinced
938 the system to always use the one that curses sets up. Turns out
939 that "sleep" was stepping all over it during a pause. So, I don't
940 use sleep anymore. The only problem that remains with it now is
941 redrawing the old display before updating it after a pause.
943 Tue Apr 3 1984 - wnl (from 1.0 to 1.2)
944 I changed the format of the TIME column from just "seconds" to
945 "minutes:seconds". I also made pausing work correctly. Screen
946 redraws with an up to date display. For compatibility with 4.2, I
947 changed the name of the "zero" function to "bzero". The makefile
948 has been altered to handle versions for 4.1 and 4.2, and README
949 has been updated to reflect these recent changes.