Annotation of dietlibc/CHANGES, revision 1.595

1.575     leitner     1: 0.30:
1.576     leitner     2:   put exception handling frames in read-only section on AMD64 and S/390
                      3:   make sys/stat.h ILP64 compatible
                      4:     (both Markus Oberhumer)
1.577     leitner     5:   whoops, strptime was completely broken, and noone noticed :-)
                      6:   fix DNS resolver to only use shorter timeout for .local queries
1.578     leitner     7:   remove throw() statements for functions taking function pointer
                      8:     arguments (qsort, besearch, ftw)
1.579     leitner     9:   fix embarassing bug in pclose (Juergen Sawinski, René Rebe)
1.580     leitner    10:   when asking for an IPv6 address and there is an IPv4 address in
                     11:     /etc/hosts but not an IPv6 address, return NO_DATA without
                     12:     querying DNS.  This is how glibc does it, and it means you can use
                     13:     e.g. elinks to browse http://localhost/ without being connected to
                     14:     the internet / a DNS server.
1.581     leitner    15:   make libcrypt/crypt.c to work when compiled with gcc 4
1.582     leitner    16:   provide toascii and ustat (Reynir Stefansson)
1.583     leitner    17:   change size of struct sigaction.sa_flags from long to int on alpha.
1.584     leitner    18:   beginnings of wide char string routines
1.585     leitner    19:   fix regex match bug ("@(a|b)" would also match "x@z")
1.586     leitner    20:   ARM big-endian support (Paul Clifford)
1.587     leitner    21:   support %s in strftime, so date in embutils does :-)
1.588     leitner    22:   fix two strptime bugs (Gernot Tenchio)
1.590     leitner    23:   add strnlen and clearenv (for udev)
1.591     leitner    24:   #define IOV_MAX in limits.h behind _XOPEN_SOURCE (for opennntpd)
1.592     leitner    25:   tzfile fix (Nikola Vladov)
1.593     leitner    26:   lots of fixes from Markus FX Oberhumer:
                     27:     * better signal handling error detection
                     28:     * setjmp.S on i386
                     29:     * getenv on i386
                     30:     * sys/stat.h -malign-double fix
                     31:     * update fcntl.h for MIPS to 2.6.13 version
                     32:     * jmp_buf is 40*8 instead of 58*8 on ppc64.
                     33:     * This patch fixes the section of the TOC entries on ppc64
                     34:     * libstdc++ updates for gcc 4
                     35:     * remove cstddef and cwchar (no longer needed)
                     36:     * int -> ssize_t for read and write
                     37:     * sigjmp.c: __mask_was_saved was not set in all cases!
                     38:     * another round of ILP64 cleanups
1.594     leitner    39:   add ngettext, dngettext (for glib)
1.595   ! leitner    40:   add strdupa and strndupa (for directfb)
1.575     leitner    41: 
                     42: 0.29:
1.548     leitner    43:   oops, fix LD_RUN_PATH unsetting (Enrico Scholz)
1.549     leitner    44:   Markus Oberhumer sent the following diffs:
                     45:     dl_iterate_phdr for libgcc_eh
                     46:     proper endian.h recognition for __s390x__
                     47:     rem and sdiv for sparc
1.550     leitner    48:   fix stupid dns decoding bug (Gernot Tenchio)
1.551     leitner    49:   #ifdef powerpc -> #ifdef __powerpc__ (Enrico Scholz)
1.552     leitner    50:   struct siginfo was wrong for 64-bit platforms
1.553     leitner    51:   Lots of fixes and patches from Markus Oberhumer.
                     52:     libstdc++ compatibility
                     53:     ilp64 compatibility
                     54:     make diet libc compile with -Werror on 13 platforms
1.571     leitner    55:     provide time() using gettimeofday for s390x
                     56:     remove waitpid warnings on ia64, s390/x
                     57:     provide C++ exception handling support
1.553     leitner    58:   ppc64 now compiles again
1.554     leitner    59:   typo in libcompat/syscall.S for WANT_THREAD_SAFE (Björn Döbel)
1.555     leitner    60:   syscall.h update for all architectures
1.556     leitner    61:   remove two ppc64 warnings
                     62:   fix s/390 syscalls > 255
1.557     leitner    63:   add "diet -L gcc" option to print the lib path
1.558     leitner    64:   remove new gcc4 signedness warnings
1.559     leitner    65:   add link.h (probably only useful to compile an ia64 cross-gcc)
1.560     leitner    66:   understand -m32 on x86_64 as meaning i386
1.561     leitner    67:   now that gcc 4 is out, finally switch -malign-functions to
                     68:     -falign-functions in diet
1.562     leitner    69:   MADV_* for hppa and ia64 (Enrico Scholz)
1.563     leitner    70:   add _PATH_TMP to paths.h
1.564     leitner    71:   support syscall on sparc and x86_64 (Herbert Poetzl)
                     72:   change alignment code in gethostbyname_r (Herbert Poetzl)
1.565     leitner    73:   avoid bus errors in DNS code
1.566     leitner    74:   implement gettimeofday vsyscall for x86_64
                     75:   replace unfinished plug&play DNS hack with zeroconf,
                     76:     rename dietfeatures.h option to WANT_PLUGPLAY_DNS.
                     77:     A small dns daemon can be found in contrib/dnsd.c
1.570     leitner    78:     hack ugly non-thread-safe kludge to communicate proper scope_id
                     79:       to getaddrinfo
1.568     leitner    80:   fix bug regarding regular expressions like "(a|)b"
1.569     leitner    81:   work around gcc 4 bug
1.572     leitner    82:   make sure diet always leaves -V in front of the gcc command line
1.573     leitner    83:   sparc64 fixes (Martin)
1.574     leitner    84:   fix warnings in socketcall functions
1.547     leitner    85: 
1.522     leitner    86: 0.28:
1.523     leitner    87:   add tcgetsid (Yuri Kozlov)
1.524     leitner    88:   add _udivdi3, _divdi3, _umoddi3, _moddi3 for MIPS
                     89:     These are in libgcc, but libgcc is compiled PIC and we compile the
                     90:     diet libc non-pic, and that is not compatible on MIPS so ld
                     91:     complains.
1.525     leitner    92:   setlocale now accepts setting the locale to "C".
1.526     leitner    93:   several fixes from Gwenole Beauchesne, AMD64 and otherwise.
1.527     leitner    94:   fix memory leak in regfree (thanks, Valgrind!).
1.528     leitner    95:   add support for gcc ProPolice and stack gap (see README.security).
1.529     leitner    96:   add ftw64 (yuck!)
1.530     leitner    97:   #include <endian.h> in syscalls.s/environ.S to make sure environ is
                     98:     actually large enough (Enrico Scholz)
1.531     leitner    99:   add waitpid wrapper around wait4 for arm-linux (Avinash Bhatia)
1.532     leitner   100:   make res_mkquery reject invalid domains (label>64, name>255) (Nikola Vladov)
1.533     leitner   101:   make res_query return TRY_AGAIN instead of NO_DATA if no answer was
                    102:     received (Nikola Vladov)
1.534     leitner   103:   fix PT_READ_U in sys/trace.h (John K. Hohm)
1.535     sanjiyan  104:   Olaf: added mmap64 wrapper (arm,mips,sparc,...)
1.536     leitner   105:   work around new kernel rt signal semantics (need to set restorer function)
1.537     sanjiyan  106:   Olaf:
                    107:     - libdl + gcc 3.4 resulted in a SIGSEGV because local names were
                    108:       dynamically resolved....
                    109:     - Also fixed a bug in the symbol resolver
1.538     sanjiyan  110:     - fixing the mmap64 stuff & arm/dyn_syscalls had no mmap2 (Gerrit Pape)
1.539     leitner   111:   tzfile parser fix (John K. Hohm)
                    112:   ppc64 fixes (Gwenole Beauchesne)
1.540     leitner   113:   add sigisemptyset, sigandset and sigorset (John K. Hohm)
                    114:   minor additions to make gdb 6.3 happy (John K. Hohm)
                    115:   ld.so support for gdb (John K. Hohm)
                    116:   implement nice(2) via setpriority() if there is no nice syscall
1.541     leitner   117:   support libm.so (John K. Hohm)
                    118:   hack rpc/xdr.h to work with gcc 4 (Andreas Jochens via Gerrit Pape)
1.542     leitner   119:   make dyn didn't work for !WANT_FULL_RESOLV_CONF (Sampo Kellomaki)
1.543     leitner   120:   #undef __i686 in i386/PIC.h (George Sawinski)
1.544     leitner   121:   fix timegm bug (found by Nikola Vladov)
1.545     leitner   122:   add sys/swap.h (George Sawinski)
1.546     sanjiyan  123:   Olaf: dynamic x86_64 support (libdl relocator and dyn_syscalls)
1.522     leitner   124: 
1.507     leitner   125: 0.27:
                    126:   change DNS routines to look for ip6.arpa instead of ip6.int
1.508     leitner   127:   WANT_FREAD_OPTIMIZATION was broken on sockets (Johannes Stezenbach)
1.509     sanjiyan  128:   Olaf:
                    129:     - added fix for getgrouplist (Nikola Vladov)
                    130:     - fix the fd leak on error path (Denis Vlasenko)
1.510     sanjiyan  131:     - the regparm attribute in typedefinition generats error with gcc-2.95
                    132:       on non-x86 arch... (reported: Johannes Stezenbach)
1.511     leitner   133:   PowerPC build fix (Gerrit Pape)
1.512     sanjiyan  134:   Olaf: added missing settimeofday
1.513     leitner   135:   add netinet/ether.h and netinet/if_ether.h
1.514     leitner   136:   add linux/fd.h
1.516     leitner   137:   add pivot_root, delete_module and init_module prototypes to unistd.h
1.517     leitner   138:     (protected by _LINUX_SOURCE)
1.518     leitner   139:   add some BSD legacy declarations to dirent.h (Bryan Henderson)
1.519     leitner   140:   add strtoull and strtoll as aliases to strtoull and strtoll
1.520     leitner   141:   use _FILE_OFFSET_BITS consistently (Indan Zupancic)
1.521     leitner   142:   add support for $DIETHOME in diet, to override the compiled-in path (George)
1.507     leitner   143: 
1.490     leitner   144: 0.26:
1.491     sanjiyan  145:   iconv UTF-8 fix (Kuba Winnicki)
1.492     sanjiyan  146:   Olaf:
1.495     leitner   147:     - add 'getgrouplist'
                    148:     - fix type of 'unsetenv'
                    149:     - add missing realtime syscalls 'clock_*' 'timer_*' and types
1.493     leitner   150:   ARGH!  gcc 3.4 breaks regparm attributes on i386!
1.494     leitner   151:   grep portability fixes (Gunnar Ritter)
                    152:   add empty libcrypt.a to help compile code from others (Gunnar Ritter)
                    153:   add make uninstall
1.502     leitner   154:   fix pread64, pwrite64
1.498     sanjiyan  155:   Olaf: MIPS has a special case for the pread/pwrite syscall ...
1.501     leitner   156:   Use -isystem instead of -I for our system includes (Paul Jarc)
1.503     leitner   157:   Add MNT_DETACH to sys/mount.h
1.504     leitner   158:   add pselect
1.505     sanjiyan  159:   fix for tzfile (Felix J. Ogris)
1.506     leitner   160:   add res_close to close the DNS UDP sockets
                    161:   remove ia64/waitpid.S; it was broken and there is a working C version
                    162:     (Gerrit Pape)
1.490     leitner   163: 
1.462     leitner   164: 0.25:
1.464     leitner   165:   fix sprintf
                    166:   head -1  ->  head -n 1
1.465     leitner   167:   handle negative precision and -0 (Jens Låås)
1.466     leitner   168:   susv3 renamed IFNAMSIZ to IF_NAMESIZE
1.467     leitner   169:   make diet accept "gcc-3.3.2" and "diet -v -Os gcc" (Yuri Kozlov)
1.468     leitner   170:   make libcompat syscall position independent (Peter S. Mazinger)
                    171:   fix missing pthread stdio external (Gernot Tenchio)
1.469     leitner   172:   Port parts of glibc test suite (Florian Westphal)
                    173:     Now we need more manpower to fix the bugs it uncovers ;-)
1.470     leitner   174:   add linux/if_ether.h and net/ethernet.h for sniffers
1.471     leitner   175:   faster string routines and a small fix for alloc (Thomas Ogrisegg)
1.472     leitner   176:   remove C++ comments from header files
1.473     leitner   177:   add ftrylockfile
1.474     leitner   178:   C99 fixes and a new printf test from Enrico Scholz
1.475     leitner   179:   epoll_event needs to be packed on x86_64 (pointed out by Indan Zupancic)
1.476     leitner   180:   work around make dependency problem breaking mipsel by creating kludge
                    181:     mipsel/syscalls.h (Samium Gromoff)
1.477     leitner   182:   Fix i386 unified syscall -EMEDIUMTYPE handling (Juergen Sawinski via
                    183:     Clifford Wolf)
1.478     leitner   184:   vsnprintf: fix output when output does not fit (Enrico Scholz)
1.480     leitner   185:   new dirname with test suite entry (Yuri Kozlov)
1.481     leitner   186:   fnmatch: add [:charclass:], fix negation (Michael J. Pomraning)
1.482     leitner   187:   make calloc a weak symbol (Martin Pohlack)
1.483     leitner   188:   make NULL C++ friendly (Martin Pohlack)
1.484     leitner   189:   new realpath (Thomas Ogrisegg)
1.485     leitner   190:   fix stupid glibcism in sys/epoll.h
1.486     leitner   191:   add pause for Alpha (Kurt Garloff)
1.487     leitner   192:   ptrace fix (Dallachiesa Michele)
                    193:   ptread.h cleanups (Martin Pohlack)
1.488     leitner   194:   fix execvp and execlp (Younès)
1.489     leitner   195:   fix time() for sparc64
1.462     leitner   196: 
1.439     leitner   197: 0.24:
1.440     leitner   198:   work around incompatible Linux select() modifying the timeout in
                    199:     librpc (Patch was sent from Mike Waychison from Sun)
1.441     leitner   200:   the overflow checking in strtou?ll? was broken in some cases.
                    201:     Unfortunately, correct overflow checking enlarged the routine by 20%.
                    202:     (reported by Manuel Novoa III)
                    203:   two stdio bug fixes (also reported by Manuel Novoa III)
1.442     leitner   204:   remove several warnings (Johannes Stezenbach)
1.443     sanjiyan  205:   Olaf: fixing tmpfile (missing parameter) and __dtostr (gcc 2.95)
1.444     sanjiyan  206:   Olaf: add the pthread-semaphore support.
1.445     leitner   207:   implemented experimental plug-and-play IPv6 DNS
                    208:     (see dietfeatures.h, see http://www.fefe.de/ipv6pnpdns.html)
1.446     leitner   209:   typo in parisc setjmp.S (Michael Mueller)
1.447     sanjiyan  210:   Olaf: fixing the pthread_join function
1.448     leitner   211:   add IPv6 link-local%eth0 support to getaddrinfo
1.449     sanjiyan  212:   Olaf: added missing syscalls (cap{g,s}et) and addmntent
1.450     leitner   213:   Add s390x and ppc64 support (Marian Jancar, SuSE)
                    214:   Marian also contributed %m support to printf, and fixes for many bugs
1.451     sanjiyan  215:   Olaf:
                    216:    - fixing strtok_r (rewrite)
                    217:    - making the %m support NON DEFAULT as it is NOT SUSv3 or SUSv2
1.452     sanjiyan  218:    - make the HUGE_VAL/HUGE_VALF macros arch (endian) independend
                    219:    - changeing __dtostr so that it returns "inf" for an inf-value not "nan"
                    220:    - fixing the strrchr bug (reported by Gernot Tenchio)
                    221:    - fixing the strtoul/strtoull bug (reported by Gernot Tenchio)
                    222:    - adding the patch to printf (Gernot Tenchio)
1.453     sanjiyan  223:    - fixing snprintf (Gernot Tenchio)
1.454     sanjiyan  224:    - fixing memccpy,memcmp,strncmp (reported by Gernot Tenchio)
                    225:    - fixing strtoXXX (Gernot Tenchio, patch modified)
                    226:    - fixing the *scanf return behavior (reported by Enrico Scholz)
1.455     leitner   227:   add printf test
1.456     leitner   228:   change sys_siglist to char** (removes linker warning)
1.457     leitner   229:   fix getnameinfo (Arnaldo Carvalho de Melo)
1.458     leitner   230:   add ar.h (for GNU make)
                    231:   replace qsort with new quicksort with three-way partitioning
1.459     leitner   232:   parisc start.S fix (Gerrit Pape)
1.460     leitner   233:   check fflush return code (Manuel Novoa III)
1.461     leitner   234:   add el-cheapo strptime and more BSD legacy crap to get more of
                    235:     e2fsutils, dump and util-linux compiled
1.439     leitner   236: 
1.381     fefe      237: 0.23:
                    238:   update sys/soundcard.h
                    239:   various x86_64 fixes (Gwenole Beauchesne)
1.382     fefe      240:   fix assert for 64-bit platforms (Gwenole Beauchesne)
1.383     fefe      241:   remove many warning from test suite (Gwenole Beauchesne)
1.384     fefe      242:   hopefully fix resolver (again, Gwenole)
1.385     fefe      243:   fix floorl typo (Norbert Wolff)
1.386     fefe      244:   add more BSD brokenness to time.h
                    245:   forward poll.h to sys/poll.h
1.387     fefe      246:   make DNS socket close-on-exec (Felix J. Ogris)
1.388     fefe      247:   add cuserid to libcompat (Andreas Krennmair)
1.389     fefe      248:   add ctermid and ftok to libcompat (those are _really_ ugly)
1.390     fefe      249:   copy some RPC bugfix cruft from glibc
                    250:     warning: I don't use rpc or xdr, I don't actually understand or have
                    251:     a way to test this.  Maybe I should remove this cruft from the
                    252:     diet libc...?
1.391     leitner   253:   make declaration of writev and readv match susv3
1.392     leitner   254:   add finite (Andreas Krennmair)
1.393     leitner   255:   move flock+constants to unistd.h (the Linux man page is wrong on this)
1.394     leitner   256:   fix assert (Andreas Krennmair)
1.395     leitner   257:   add modf, libm fixes (Andreas Krennmair)
1.396     leitner   258:   rename __pure__ to __pure (Laurent Bercot)
1.397     leitner   259:   utmp x86_64 biarch support (Gwenole Beauchesne)
1.398     leitner   260:   add fgetpwent (Alvaro Gomes Sobral Barcellos)
1.399     leitner   261:   add vsyscall support for linux 2.5 on recent CPUs
1.400     leitner   262:   add a few new 2.5 syscalls, adapt to renamed epoll syscalls
1.401     sanjiyan  263:   Olaf: fixing the vsyscall support so that the binaries still work on 2.4
1.402     leitner   264:   remove getline macro, caused problems with GNU sed
1.403     leitner   265:   make assert equal (void)0 under -DNDEBUG (Enrico Scholz)
1.404     leitner   266:   make __attribute_malloc__ #define safe (Matthias Andree)
1.405     leitner   267:   add BSD utimes to libcompat (Andreas Krennmair)
1.406     leitner   268:   remove gcc 3 #ifdef kludgery from include/string.h; it works with gcc
                    269:     3.2.2+, don't know if it's gcc or us (Gerrit Pape)
1.407     leitner   270:   remove _null_auth declaration in librpc/rpc_prot.c (Thayne Harbaugh)
                    271:   fix regex bug with ^$ not matching "" (Anthony de Boer)
1.408     sanjiyan  272:   Olaf: removing "<arch>/mmap.*" where no arch-specific impementation is
                    273:       needed. (added "syscalls.s/mmap.S")
                    274:     - fixing the vsyscall in the dynamic library... (self made problem)
                    275:     - removing warning in "res_query.c"
                    276:     - changing type of stream-mutex to recursive
                    277:     - sparc/sparc64: shrink of the unified syscall and the special syscalls
                    278:       (fork/pipe) to use the "unified_syscall_error_handler"
1.409     leitner   279:   add sendfile64 backwards compatibility glue
1.410     leitner   280:   add __attribute_dontuse__ to declare a few functions as deprecated
                    281:   use above to flag a few BSDisms ;-)
1.411     leitner   282:   include <sys/cdefs.h> in errno.h, fixes __attribute_dontuse__ breakage
1.412     leitner   283:   endmntent now returns 1 (Florian Westphal)
1.413     leitner   284:   strtoul return value fixes (Jan Bobrowski)
1.414     sanjiyan  285:   Olaf: fixing the diet wrapper for sparc and changing the options for mips
1.418     leitner   286:   a few i386/*.S fixes (Hynek Schlawack)
1.417     leitner   287:   remove =0 for static variables (Thomas Ogrisegg)
1.419     leitner   288:   fix strtoul (broke getaddrinfo and ssh)
                    289:   fix segfault in parser
1.420     sanjiyan  290:   Olaf: checkin of the new libpthread implementation & added confstr
1.421     leitner   291:   Make gethostbyname2 case insensitive (Thomas Ogrisegg)
                    292:   RPC 64-bit cleanliness fixes (Gwenole Beauchesne)
1.422     leitner   293:   sysctl fix (Thomas Ogrisegg)
1.423     leitner   294:   make header files C++ compliant (__BEGIN_DECLS and __END_DECLS)
1.424     leitner   295:   remove more warnings (Yuri Kozlov)
                    296:   use expect() in a few strategic places
1.425     leitner   297:   try to add sigcontext and ucontext for x86_64
1.426     leitner   298:   add ffs, ffsl, ffsll
1.431     leitner   299:   Olaf: fixing the error string list and sparc bug (Gerrit Pape)
1.429     leitner   300:   first throw, then attributes (Andreas Jabs)
1.430     leitner   301:   unbuffered fputc was broken on big endian (big oops, thanks Gerrit Pape)
1.431     leitner   302:   fix parisc struct stat (Gerrit Pape)
1.432     leitner   303:   add vasprintf (for elinks)
1.433     leitner   304:   fnmatch used [^e] instead of [!e] for negation (Heiko Berges)
1.434     leitner   305:   add sparc and parisc assembly routines (Thomas Ogrisegg)
1.435     leitner   306:   add swab (Johannes Stezenbach)
1.436     leitner   307:   make a{4} match exactly and not at least 4 times a (Ingo Oeser)
1.437     sanjiyan  308:   Olaf: fixed a libdl ref-counter bug (Thomas Walpuski)
1.438     leitner   309:   All hail to the busybox chiefs!  Instead of reporting bugs they find,
                    310:     they put a #error in their source code.  Is Erik seeing the diet
                    311:     libc as uClibc competition that needs to be squashed even with
                    312:     unfair methods?  People, if you find bugs, tell us!
                    313:   Fixed fputc and freopen (found in busybox comments)
1.381     fefe      314: 
1.341     fefe      315: 0.22:
1.342     fefe      316:   fix i386 libm
1.343     fefe      317:   fix netinet/ip_icmp.h (Rui Prior)
1.344     fefe      318:   make strings.h susv3 compliant (Gunnar Ritter)
1.345     fefe      319:   remove stdio dependence in abort
1.346     fefe      320:   fix truncate64, ftruncate64 (Luc Van Oostenryck and Yuri Kozlov)
1.347     fefe      321:   fix and improve erand48() (Luc Van Oostenryck)
1.348     fefe      322:   fix realpath for non-existant directories (Gergely Nagy and Gerrit Pape)
1.349     fefe      323:   fix DNS timeout and IPv6 socket reuse
1.350     fefe      324:   strtoul now accepts "-1" as well (Thomas Ogrisegg)
                    325:   add i386 strcasecmp and __ltostr (Thomas Ogrisegg)
1.351     fefe      326:   add killpg prototype (Luc Van Oostenryck)
                    327:   remove some compiler warnings (Luc Van Oostenryck)
                    328:   better rand() from Knuth's TAOCP (Luc Van Oostenryck)
1.352     fefe      329:   fix unified x86_64 unified syscall 64-bit return value issue (Gwenole)
1.353     fefe      330:   the getdents64 emulation was broken and repairing it opened a can of
                    331:     worms.  So I ripped it out.  I also changed the readdir64 emulation
                    332:     to work if there is no getdents64.
1.354     fefe      333:   fix ia64 start.S (Thanks to Volker Birk for an account on his ia64 box)
1.355     fefe      334:   many ia64 fixes (waitpid, nice, fork, vfork, time, utime ...)
1.356     fefe      335:   More fixes from Gwenole (printf %p only printed the last 32 bits, I
                    336:     botched the getdents64 #ifdefs, we violated the x86_64 ABI)
1.357     fefe      337:   change signal() to do as glibc does
1.358     fefe      338:   remove a few more warnings
1.359     fefe      339:   add new 2.5 syscall #defines
                    340:   add epoll_create, epoll_ctl and epoll_wait
1.360     fefe      341:   the new x86 syscall numbers exceed 255, breaking our %al optimization
                    342:     I worked around it with conditional assembly in cpp macros.  Ugh.
1.361     fefe      343:   more MIPS fixes (the stoned MIPS ABI for restartable syscalls expects
                    344:     the instruction before the syscall to be a load immediate)
                    345:   fix fread() from a pipe (oops, tried to lseek)
1.362     fefe      346:   #define _POSIX_VDISABLE in termios.h (Laurent Bercot)
1.363     fefe      347:   two *printf fixes (Gernot Tenchio)
1.364     fefe      348:   add nan and +-inf handling in __dtostr
1.365     fefe      349:   add _SC_NGROUPS_MAX support to sysconf (Felix J. Ogris)
1.366     fefe      350:   make assert() use expect(), slight optimization
1.367     fefe      351:   add i386 vfork (Thomas Ogrisegg)
1.368     fefe      352:   fix SA_NODEFER on sparc (Gerrit Pape, Thomas Bader)
1.369     fefe      353:   fix sin, cos and __dtostr (Gernot Tenchio)
1.370     fefe      354:   add /dev/epoll ioctl constants to sys/ioctl.h
1.371     fefe      355:   add linux/eventpoll.h for /dev/epoll
1.372     fefe      356:   fix lseek64 on 64-bit architectures
1.373     olaf      357:   Olaf: fix x86_64 start-code (we have reg-args)
                    358:     fixing some broken macros in sparc32-code (.udiv,.urem)
                    359:     adding strndup (GNU Extension)
1.374     fefe      360:   fix glob strncpy (R.L. Horn)
1.375     fefe      361:   fix regfree (Uwe Ohse)
1.376     fefe      362:   fix puts in full stdio mode (would omit \n)
1.377     fefe      363:   fix wrong types on powerpc, broke *stat (Gerrit Pape)
1.378     fefe      364:   allow more than 64k in i386 memchr (Karsten Scheibler)
1.379     fefe      365:   make strftime work it WANT_TZFILE_PARSER is not set (Gwenole Beauchesne)
1.380     fefe      366:   build parisc on parisc64, change libgcc link order on sparc (Gerrit Pape)
1.341     fefe      367: 
1.326     fefe      368: 0.21:
1.327     fefe      369:   use gcc's size_t, ptrdiff_t and wchar_t types (Olaf)
                    370:   use -G 8 on MIPS to reduce code size (Johannes Stezenbach)
1.328     fefe      371:   add munlock (Jens Låås)
1.330     fefe      372:   argh, atexit fell victim to bit rot (or maybe Olaf)
1.331     fefe      373:   add WANT_INET_ADDR_DNS to make gethostbyname not look up IP numbers
                    374:     but use them to fill in the struct hostent directly.
1.332     olaf      375:   signal is now a correct signal (Olaf)
1.333     fefe      376:   read optimizer cflags for diet -Os gcc from ~/.diet/gcc, overriding
                    377:     the built-in defaults.
1.334     fefe      378:   add file "SECURITY".  I will document design tradeoffs that have
                    379:     security implications there.
1.335     fefe      380:   fixed regex LINEEND condition
1.336     fefe      381:   add .size directive to i386 syscalls
1.337     fefe      382:   shove a few more bytes off the i386 socket calls
1.339     fefe      383:   setjmp, longjmp and clone for x86_64 are now implemented but not tested (Olaf)
1.340     fefe      384:   fix sparc signals
1.326     fefe      385: 
1.319     fefe      386: 0.20:
1.325     fefe      387:   calloc was botched
1.320     fefe      388:   umount and stime for x86_64 (Gwenole Beauchesne)
1.321     fefe      389:   some malloc fixes for very big numbers (Enrico Scholz, me)
1.322     fefe      390:   x86_64 unified syscall did not preserve rbx violating ABI (Gwenole)
1.323     fefe      391:   realpath fix if path did not contain a slash (Gwenole)
1.324     fefe      392:   add ucontext
1.329     fefe      393:   add asm/statfs.h to work around people using <linux/fs.h>
1.319     fefe      394: 
1.308     fefe      395: 0.19:
                    396:   current gcc cvs makes __thread a keyword (Eric Troan)
1.316     fefe      397:   be more strict regarding hostile DNS packets (me)
1.312     fefe      398:   fix ia64 compile problems (Gerrit Pape)
1.311     fefe      399:   make killpg a function and not a macro (broke bash 2.05b)
1.313     fefe      400:   fix ia64 start code and unified syscall (me)
1.314     fefe      401:   add sparc/strlen.S from Thomas Ogrisegg
                    402:   add more space to ARM __jmp_buf in setjmp.h (Andre)
1.315     fefe      403:   fix libcompat/syscall.S (did't compile on arm)
1.316     fefe      404:   add integer overflow fix in xdr_array after bugtraq advisory (me)
1.317     fefe      405:   fix x86_64 socket calls and mmap (and some more) (Gwenole Beauchesne)
                    406:   add calloc integer overflow fix after RUS-CERT advisory (me)
1.318     fefe      407:   add fread and fwrite integer overflow fix (me)
1.308     fefe      408: 
1.281     fefe      409: 0.18:
1.282     fefe      410:   add stpcpy (from Thomas Ogrisegg)
                    411:   check in mktime fix (from Luc Van Oostenryck)
1.283     fefe      412:   add libm2.s from contrib to i386 (oops, how long has it been sitting
                    413:     there?)
1.284     fefe      414:   add truncate64 and ftruncate64 and prototype for truncate (only had ftruncate)
1.450     leitner   415:   Michal Ludvig (SuSE) ported the diet libc to the x86_64 architecture (the
1.285     fefe      416:     upcoming AMD Hammer chips!).  You can't even buy the chips yet and
                    417:     the diet libc already supports it!  Amazing ;-)
                    418:   Michal's patch also fixed several of the outstanding warnings.  Thanks!
1.286     fefe      419:   Andre sent a patch to add ARM profiling.  He says it does not work
                    420:     yet, but it's a start.
1.287     fefe      421:   added getdents64 backwards compatibility and include it in large file
                    422:     support #defines
1.288     fefe      423:   perror now checks if the message is NULL like glibc (Thomas Ogrisegg)
1.289     fefe      424:   ftell did not take ungetc into account (Kevin Ryde through Debian).
1.290     fefe      425:   Thomas Ogrisegg sent a port to IA64!
1.291     fefe      426:   sigaddset, sigdelset and setismember segfaulted for signal 0 (Gunnar Ritter)
1.292     fefe      427:   Enrico Scholz reported several bugs in the header files.
                    428:   change __malloc__ to __attribute_malloc__
1.293     fefe      429:   add pa-risc socketcall (but see TODO) (Felix J. Ogris)
1.294     fefe      430:   fix *rand48 initialization (Kevin Ryde)
                    431:   fnmatch infinite loop fix (Piotr Esden-Tempski)
1.295     fefe      432:   make signal() into a sigaction wrapper function
1.296     fefe      433:   add memrchr (Emil)
1.297     fefe      434:   remove __attribute__((const)) from getpid() (Yuri Kozlov)
1.298     fefe      435:   make getserv* also work if proto is NULL (Jens Låås)
1.299     olaf      436:   now clone on parisc works (Thomas Ogrisegg)
1.300     fefe      437:   getopt* fix from Thomas Walpuski
1.301     fefe      438:   add syscall() to libcompat (Thomas Ogrisegg)
1.302     fefe      439:   fix strncpy and strrchr i386 assembly versions for dynamic linking
1.310     fefe      440:     (John K. Hohm)
1.302     fefe      441:   allow short option grouping in getopt* (Ralf Wildenhues)
1.303     fefe      442:   make the DNS resolver IPv6 transport capable (WANT_IPV6_DNS)
1.304     fefe      443:   mention -v in diet.1 (Bryan Henderson)
1.305     fefe      444:   auto-detect gcc 3 on i386 and remove compiler option warnings
1.306     fefe      445:   putenv tweak (Thomas Ogrisegg)
                    446:   add missing socket syscalls for PA-RISC and IA64 (Thomas Ogrisegg)
                    447:   add cpio.h and tar.h (Thomas Ogrisegg)
                    448:   change opendir/readdir/closedir from malloc to mmap (Thomas Ogrisegg)
1.307     fefe      449:   cleanups from Florian LaRoche
1.281     fefe      450: 
1.264     fefe      451: 0.17:
1.265     fefe      452:   fix several bugs in getservent_r
1.266     fefe      453:   Gunnar Ritter reported the following:
                    454:     moved tcgetpgrp and tcsetpgrp to unistd.h
                    455:     adjusted lstat->lstat64 #define to make it work with function pointers
                    456:     move __dietlibc__ #define from features.h to diet
1.267     fefe      457:   Thomas Ogrisegg sent x86 memccpy and strncpy routines and introduced
                    458:     an dietfeatures.h #define WANT_FULL_POSIX_COMPAT
1.268     fefe      459:   Thomas also sent me profiling support (so far only on x86, but
                    460:     profiling/PORTING describes what needs to be done for other
                    461:     architectures)!
1.272     fefe      462:   add contrib/dprof.c, also from Thomas.
1.269     fefe      463:   Andreas Krennmair sent a patch to add the BSD regex interface to
                    464:     libcompat
1.271     fefe      465:   Andre noticed that __dtostr never sets first to false.  Oops!
1.274     fefe      466:   Andre has provided a largely untested patch that seems to fix the problem.
1.275     fefe      467:   Igor Gilitschenski sent a patch for the "%8.7lx" issue.
1.276     fefe      468:   abort did not flush all stdio streams
1.277     fefe      469:   fix some nasty regular expression bugs
                    470:   write a stupid malloc checker (contrib/debug-realloc.c) to help me
                    471:     debug my regular expressions.  Please read contrib/debug-realloc.txt
1.278     fefe      472:   our i386 memchr,memcmp were broken for the count=0 case
1.279     fefe      473:   fix DNS domain search
1.280     fefe      474:   i386 memccpy exchanged esi and edi :-(  I should do more checks before
                    475:     accepting external code...
1.264     fefe      476: 
1.244     fefe      477: 0.16:
                    478:   "diet -v" or "diet -Os" segfaulted without further arguments.
1.246     fefe      479:   Andre found two very embarassing bugs in my four lines of md5 glue.
                    480:     I need to get more sleep.
1.247     fefe      481:   Thanks Ogrisegg found that ptrace does not work as documented and
                    482:     provided a wrapper that emulates the glibc behaviour.
1.248     fefe      483:   Dirk Engling saved 8 bytes and 4 cycles in the ARM clone()
                    484:   fix ptrace.h for S/390 and ARM
                    485:   provide a PORTING document so we don't lose track of which file need
                    486:     to be touched to port the diet libc to a new platform.
1.249     fefe      487:   remove a few warnings
                    488:   provide a prototype for usleep.
1.250     fefe      489:   make __dtostr work on ARM by using long instead of long long.
                    490:     Idea by Dirk Engling.
1.251     fefe      491:   fix an argument counting bug in *scanf (Thomas Ogrisegg)
1.252     fefe      492:   Forgot an #endif in asm/sigcontext.h (Mike Castle)
1.253     fefe      493:   Kurt Garloff sent in patches to
                    494:     fix struct termios on non-x86 architectures
1.254     fefe      495:   printf("%+05d\n",500) was broken (Raimar Falke told me, Olaf fixed it)
                    496:   create libcompat.a (and move daemon to it)
1.255     fefe      497:   add getdelim and getline
                    498:   *printf now recognize 'z' integer flag (and ignore it)
1.256     olaf      499:   Dirk Engling provided a strcpy.S for ARM.
1.257     olaf      500:   Olaf: fixed *scanf familie. It hadn't wored with "long long".
1.258     fefe      501:   Hans Lermen fixed i386/getenv.S
1.259     fefe      502:   diet -Os no longer discards -fpic and -fno-pic
1.260     fefe      503:   fix i386 rand/random to use correct RAND_MAX (thanks, Jaroslav
                    504:     Macodiseas)
1.261     fefe      505:   sys/ipc.h now includes sys/types.h
1.262     olaf      506:   Olaf: started to make the sparc64 port
1.263     fefe      507:   scandir should not sort if compar() is NULL (reported by Andrea Marrosu)
1.244     fefe      508: 
1.224     fefe      509: 0.15:
1.225     fefe      510:   vfork sucks.  I reverted to the old behavior where vfork==fork.
1.226     fefe      511:   fix bsearch (and remove i386 assembly bsearch, needs to be redone).
1.227     fefe      512:   Thanks Ogrisegg sent a patch to make the PA-RISC unified syscall
                    513:     thread-safe!
1.228     fefe      514:   remove vfork and add alarm to dynamic syscalls.
                    515:   fix diet-dyn to link in dyn_dstop.o and not dyn_stop.o.
1.229     fefe      516:   The MD5 code generated unaligned accesses when passed an unaligned
                    517:     pointer on little endian ARM and MIPS.
                    518:   MIPS unified syscall didn't compile anymore.
                    519:   Put up new mipsel target to cross compile for little endian mips.
                    520:   The mips target will again explicitly set endianness to big endian.
                    521:   Compiling natively on a MIPS box should not touch the endianness.
1.230     fefe      522:   Duh, when we removed return0, we broke tzset when the time zone parser
                    523:     was disabled.  Uwe Ohse noticed this.  Thanks!
                    524:   Fix gethostbyname to match host names case insensitively in /etc/hosts.
                    525:     Oops, this was reported 6 weeks ago but I overlooked the email.
                    526:     Thanks, Denis Rachal!
1.231     fefe      527:   vsnprintf's zero termination was broken.
1.233     fefe      528:   Uwe Ohse found a few more bugs:
                    529:     Remove WANT_BUGGY_GLIBC_STRSEP.  The Linux man page is broken, glibc
                    530:       does it correctly.
                    531:     Make inet_aton use strtoul instead of strtol
                    532:     fdopen would close the file descriptor if it could not malloc the
                    533:       buffer.
                    534:     strftime updates.
                    535:     Make _FILE_OFFSET_BITS includes -Wundef clean
                    536:   Andre found a typo in endian.h for big endian mips
1.234     fefe      537:   Ryan told me that fmod was not included in libm.  Oops.
1.235     fefe      538:   strstr(whatever,"") returned NULL, not whatever.  Found by a new test
                    539:     suite entry for strstr that I wrote.
1.245     fefe      540:   Thomas Ogrisegg suggested or sent patches for the following:
1.236     fefe      541:     add <asm/sigcontext.h> for profiling support.
                    542:     make strncpy a #define in string.h to save a few bytes.
1.241     fefe      543:     an i386 assembler getenv implementation (roughly half the size)
                    544:     add grantpt, ptsname, unlockpt
1.236     fefe      545:   add a getenv test suite entry.
1.238     fefe      546:   Andre contributed an ARM assembler md5 implementation and he fixed mmap
                    547:     on ARM.
                    548:   add glibc macro names in sys/reboot.h.  Mentioned by Laurent G. Bercot
1.239     fefe      549:   getservent_r did not parse lines without aliases.  Thanks, Jaroslav
                    550:     Macodiseas!
1.240     fefe      551:   fix MIPS start code (argv[0] was always corrupt)
1.241     fefe      552:   removed annoying -Wconversion gcc switch
1.242     fefe      553:   add -v to diet.c and fix MIPS CFLAGS in diet.  Thanks, Johannes Stezenbach
1.243     fefe      554:   Kurt Garloff sent these diffs:
                    555:     add fdatasync (and make it a pthread cancellation point)
                    556:     numerous alpha issues, like using .quad instead of .long for
                    557:     offsets, change strip to -strip in Makefile (so a failing strip does
                    558:     not abort the make), try to be more friendly to the gcc 2.96 that
                    559:     SuSE 7.1 AXP ships with.
1.224     fefe      560: 
1.209     fefe      561: 0.14:
1.224     fefe      562:   fix brk again (missing __brk, trivial oversight)
1.210     fefe      563:   a new i386/atol.S that is 4 bytes smaller (and faster, too!).  Thanks,
                    564:     Thomas Ogrisegg!
1.211     fefe      565:   Thomas also contributed a PA-RISC port including testandset, so
                    566:     libpthread will work once we implement clone!  Great work, Thomas.
1.212     fefe      567:   made the fake locale more believable.
                    568:   If you need gettext, use http://www.ca.postgresql.org/~petere/gettext.html
1.213     fefe      569:   moved _exit into the unified syscall on x86.
1.214     fefe      570:   Uwe Ohse found many more bugs:
                    571:     getpass EINTR handling, ttyname, sysconf_cpus with SLASH_PROC_OK,
                    572:     liblatin1 was more or less completely broken if you gave it chars as
                    573:     arguments, not ints (signedness).  execvp had a buffer overflow in
                    574:     case a PATH element exceeded PATH_MAX, but it's not a security
                    575:     problem since setuid programs need to set their path to some known
                    576:     value anyway.
1.219     fefe      577:     hasmntopt did not work with foo=bar style options
1.217     fefe      578:   Uwe also improved ftw's stack usage.
1.214     fefe      579:   Put movl instead of popl rationale in comment in i386/unified.S since
                    580:     three people have suggested saving a few bytes with popl now ;)
1.215     fefe      581:   I discovered __attribute__((malloc)) and started using it.  For gcc 3,
                    582:     it improves the optimizer when functions return malloced pointers.
1.216     fefe      583:   Steven Rostedt pointed out that my setvbuf was broken with regard to
                    584:     size==0 and sent a patch to fix it.
1.218     fefe      585:   Thomas Ogrisegg made setenv smaller.
1.220     olaf      586:   Olaf: implemented the parisc clone and an atomic testandset, modified the
                    587:     libpthread to respect the parisc UPgrowing stack. still non functional,
                    588:     because the unified syscall uses errno :(
1.221     fefe      589:   tcgetospeed read from the wrong termios field.  Thanks, Gunnar Ritter!
1.222     fefe      590:   Fixed asprintf (relied on vsnprintf(NULL,...) to return length but
                    591:     don't write anything which was no longer the case.  It also
                    592:     allocated one byte unnecessarily, which Uwe Ohse found.
1.223     fefe      593:   Fix ttyname (readlink does not \0-terminate, forgot to do that).
1.209     fefe      594: 
1.193     fefe      595: 0.13:
1.194     fefe      596:   add readdir64 and automatic mapping if _FILE_OFFSET_BITS == 64
1.199     fefe      597:   make diet not include the linker safeguard stuff when preprocessing
1.207     fefe      598:   Olaf: port to S/390!
1.463     leitner   599:   fix vfork (it was put into dietlibc.a twice)
1.197     leitner   600:   res_query did not initialize last
1.199     fefe      601:   diet (not diet-dyn, of course) now adds -static to the gcc command line
1.198     leitner   602:   fixed fflush on input streams (tic from ncurses exposed this)
1.199     fefe      603:   duh, there is an alarm system call, too, so we use it and not setitimer
1.200     fefe      604:   fix comparison in gmtime_r that caused Jan 1 to be converted to Dec 32.
1.201     fefe      605:   rewrote __dtostr (it also has one more argument now)
1.205     fefe      606:   Thanks to Erik Troan for bringing these to my attention:
1.204     fefe      607:     make putenv behave like glibc (putenv("HOME") == unsetenv("HOME"))
                    608:     fix strncat for the case where n == 0 (security implications?)
                    609:     fix bsearch (it didn't find the very last element in the array, same
                    610:       bug in both the C and the i386 assembly version).
1.205     fefe      611:     fixed FNM_PATHNAME in fnmatch
1.204     fefe      612:   fix brk (the syscall was documented incorrectly in the Linux man page)
                    613:     Thanks, Thomas Ogrisegg!
1.205     fefe      614:   added negated character classes to fnmatch (not required by POSIX)
1.206     fefe      615:   make the utmp routines open utmp read-only if read-write doesn't work.
1.208     fefe      616:   remove syscalls.c directory, it is obsolete now with unified syscalls
1.193     fefe      617: 
1.164     fefe      618: 0.12:
                    619:   more contributions from Frank Klemm.
1.165     fefe      620:   iconv can now do UCS-2, too.
1.167     fefe      621:   Imported several x86 assembly routines from Wouter van Kleunen.
1.166     fefe      622:   Lots of bug fixes, and several more i386 specific versions of common
                    623:     routines to make them smaller.
1.168     fefe      624:   add memmem (a GNU extension that looks useful)
1.170     fefe      625:   several changes from Michal Ludvig: inttypes.h gets C99 macros,
1.168     fefe      626:     add pivot_root syscall, %n for *scanf.
1.169     fefe      627:   add adjtimex (thanks, Laurent BERCOT)
1.171     fefe      628:   add Frank Klemm's optimized md5
1.172     fefe      629:   add -Os option to diet (see diet.1).
1.173     fefe      630:   several IPv6 constants and HZ were missing, thanks Johannes Kloos.
1.174     fefe      631:   add 32-bit uid/gid syscalls.
1.175     fefe      632:   add rand48 (thanks, Johannes Kloos)
1.176     fefe      633:   fixed a lot of bugs in getopt* (thanks, Johannes)
1.177     fefe      634:   add strxfrm and tweak limits.h.  glib-1.3.8 now compiles without changes.
                    635:   add a few more module syscalls.  modutils-2.4.9 now compiles without changes.
                    636:   fix gethostent alias list termination.  Major oops.
1.178     fefe      637:   add execle and two DNS constants (from Johannes Kloos).
1.179     fefe      638:   opendir did not close-on-exec (thanks, Laurent Bercot).
1.180     fefe      639:   DNS will now properly signal errors and set h_errno.
                    640:   A few more cleanups (thanks, Andreas Jabs and Matthias Andree).
1.181     fefe      641:   Added an uber-cool linker safeguard feature!  Idea by Matthias Andree.
                    642:     If you enable WANT_SAFEGUARD in dietfeatures.h, diet will include an
                    643:     external reference to a symbol that is only in the diet libc.  So,
                    644:     when you accidentally link a diet libc compiled object file against
                    645:     glibc, the linker will barf.  This will bloat your object files, but
                    646:     you can remove all the references with "strip -R .note" from
                    647:     the binaries in the end (which you should do anyway).
1.182     fefe      648:   fix ARM unified syscall (select did not work).
1.183     fefe      649:   add getpwent_r ala glibc and replace getpwent
                    650:   do the same for getgrent and getspent
                    651:   remove entlib (new code is smaller)
1.184     fefe      652:   rewrite getserv* to use parselib (and provide ..._r, too)
1.185     fefe      653:   add getpwnam_r and getpwuid_r
1.186     fefe      654:   rewrite getproto* to use parselib (and protive ..._r, too)
1.187     fefe      655:   Olaf muddled with the dynamic linker.  It's a clean-room
                    656:     implementation in the sense that it once worked for Olaf in a clean
                    657:     room ;)
1.188     fefe      658:   add if_nameindex and if_freenameindex.
                    659:   fixed arm unified syscalls to work with current binutils (; is no
                    660:     longer a line separator but starts a comment, switched to .macro)
1.189     fefe      661:   changed all st_[cma]time types to signed long so comparisons against
                    662:     LONG_MIN will work correctly.  (GNU tar does this)
1.190     fefe      663:   fixed two bugs regarding ungetc.
                    664:   add getusershell, setusershell, endusershell (for vs_ftpd)
                    665:   add prctl, dirfd (also for vs_ftpd)
1.191     fefe      666:   fixed strftime (was completely hosed)
1.192     fefe      667:   added real make install target
1.164     fefe      668: 
1.115     fefe      669: 0.11:
                    670:   fix major oops in DNS routines (only with WANT_FULL_RESOLV_CONF enabled).
1.116     fefe      671:   fix vsscanf bug (Thanks, David Chappell).
1.117     fefe      672:   add floor, ceil and memchr prototypes.
                    673:   add __builtin_expect and expect #defines for gcc versions below 3.0
1.118     fefe      674:   cleaner errno vs __errno_location handling
                    675:   add placeholder iconv (iconv_open will always return EINVAL)
                    676:   try to remove kernel 2.4 header dependency in IPv6 sockaddr_in6
                    677:     initialization of getaddrinfo.
1.119     fefe      678:   fix vsnprintf %X (printed lower case)
1.120     fefe      679:   I wrote a new getopt.  It appears to actually work (it is POSIX
                    680:     compliant, it does not sort argv like the GNU version) and is only
                    681:     a little over 300 bytes on x86.
1.121     fefe      682:   Guillaume Cottenceau just wrote me that strncat should be even more
                    683:     broken than it already is: it should append n bytes AND THEN \0!
1.463     leitner   684:     I wonder how many programmers have produced off-by-one errors here...
1.122     fefe      685:   Fix regexec offset return.  autoconf now believes that diet libc has
                    686:     POSIX regular expressions.
1.123     fefe      687:   Fix fnmatch (a/b/* matched a/b/c/d even if FNM_PATHNAME was set)
1.124     fefe      688:   Fix regular expression match for x* when there is no x at all.
1.125     fefe      689:   Fix memory leak in error case in gethostbyname(2|).  Thanks, Dietz Pröpper.
1.126     fefe      690:   Add %h to vsnprintf.
1.127     fefe      691:   Add FAQ.
1.128     fefe      692:   Make %h work for signed numbers and add %hh to vsnprintf.
                    693:   initgroups ignored the group argument :-(
                    694:   remove printf references and nested functions from glob.
1.129     fefe      695:   added an errno in libpthread that will display a prominent linker
                    696:     warning.
1.131     fefe      697:   started getting rid of kernel headers.  Big task! :-(
1.130     fefe      698:   add res_mkquery.  The diet libc can now compile and link mtr.
1.132     olaf      699:   Olaf: added a lot of code in libdl (not yet complete), changed the
                    700:     startup code to make it work with his libdl and ld.so (needs still work
                    701:     too)
1.134     fefe      702:   __dns_readstartfiles only took the first domain or search path.
                    703:     Thanks, Anthony de Boer
1.133     olaf      704:   Olaf: added clone and a new unified_syscall for PowerPC
                    705:     also dynlinker is now available (i386 only at this time)
1.135     fefe      706:   crufted together a stdarg.h implementation from the various gcc headers.
1.136     fefe      707:   implement getopt_long (ugh, the GNU people need professional help)
1.137     fefe      708:   fixed word delimiters in regex (they looked for space, i.e. "," did
                    709:     not work as delimiter)
1.138     fefe      710:   errno.h now declares sys_errlist and sys_nerr.
1.143     fefe      711:   added mkdtemp.
1.142     fefe      712:   Uwe Ohse reported all of the following bugs:
                    713:     ttyname should return 0 if !isatty.
                    714:     realpath returns NULL if "." cannot be opened
                    715:     putenv erroneously accepted (and mishandled) entries without "=".
                    716:     popen returned 255 instead of 127 if /bin/sh could not be run.
                    717:     fgetc did not set the internal EOF indicator on EOF.
                    718:     bsearch contained an assumption about integer arithmetic overflow
                    719:       behavior.
                    720:     system did not set SIGCHLD and thus contained a race.
                    721:     popen did not set close-on-exec and could leak an fd on malloc error.
1.147     fefe      722:     daemon did not check whether open returns an fd below 3
                    723:     perror did not save errno.
1.144     olaf      724:   Olaf: Peter Jones reported some problems with perror; strerror had the
                    725:     same problem.
                    726:     Peter also posted a patch to atexit/exit. With some modifications it is
                    727:     now implemented.
1.145     fefe      728:   Unbuffered stdio and ungetc can no longer be disabled.  I will try to
                    729:     implement part of it using ELF weak symbols.
1.146     fefe      730:   Added minimal sysconf (tehe) from David Chappell.
1.148     fefe      731:   Added overflow handling for strtoul and strtol.
1.149     fefe      732:   Added WANT_ETC_HOSTS in dietfeatures.h and made gethostbyname/2 use
                    733:     it before falling back to DNS if enabled.
1.150     fefe      734:   Added a littie backwards compatibility cruft for gpm (man, do these
                    735:     sources stink!)
1.151     fefe      736:   Added openpty.
1.152     fefe      737:   Squeeze a few bytes off the is* routines, courtesy of Peter Jones.
1.154     fefe      738:   Fix fseek return value.
1.155     fefe      739:   Add dirname and basename.
1.156     fefe      740:   Add a few i386 math routines contributed by Frank Klemm.
1.157     fefe      741:   Fixed getservent (did not allow _ and - in the aliases).
                    742:     Thanks, Oden Eriksson
1.158     fefe      743:   Added a float.h so configure believes we have ANSI header files.
                    744:   Fix a lot more stdio bugs that Uwe Ohse pointed out.
1.162     fefe      745:   Olaf: has added a new scanf and printf core that is suitable for all
1.159     olaf      746:     scanf and printf function implementations
1.160     fefe      747:   Imported a few more functions and optimizations from Frank Klemm (he
                    748:     also rewrote dtostr to have more precision)
1.161     olaf      749:   Olaf: checked in a new sig* function family (based on rt_sig*).
                    750:     legacy <2.2 signal-handling doesn't work at the moment.
1.163     fefe      751:   Made rudimentary iconv that can convert back and forth between
                    752:     iso-8859-1, utf-8 and ucs-4 (for debugging).
                    753:     Thanks to Markus Kuhn for the excellent utf-8(7)!
1.115     fefe      754: 
1.74      fefe      755: 0.10:
                    756:   update getpagesize.
                    757:   add personality.
1.75      fefe      758:   add "%*s" and "%*.*s" support to vsnprintf.
1.76      fefe      759:   add putchar (apparently arm-linux-gcc will substitute printf("\n")
                    760:     with putchar('\n') behind your back...?!
1.77      fefe      761:   import include/scsi/ from glibc.
1.78      fefe      762:   add iopl.
1.80      fefe      763:   add execl and sigdelset prototypes.
                    764:   add getopt_long stuff to getopt.h (may compile but won't link).
1.81      fefe      765:   add RPC headers (no code yet).
1.82      fefe      766:   add mlockall, munlockall
1.83      fefe      767:   make "diet gcc foo.c" work.
                    768:   added Sun RPC code and removed as many warnings as possible in a
                    769:     heroic act of self-mutilation.
                    770:   added getproto* and getdtablesize for the RPC cruft :-(
1.84      fefe      771:   added getpass.  mount from util-linux actually compiles now!
                    772:   fix the sig*set routines.  mount actually works now *bg*
                    773:   fix fwrite dividing by zero when trying to fwrite n records of size 0.
1.85      fefe      774:   added an initial regex implementation (3500 bytes!!!).
1.87      fefe      775:   add llseek and lseek64 with optional lseek fall-back.
1.88      fefe      776:   add res_init.
                    777:   add asprintf (ugh, what an ugly function).
1.89      fefe      778:   expanded arpa/nameser.h to include backwards compatibility defines
1.90      fefe      779:   add ut_name alias to ut_host in struct utmp.
                    780:   add inet_ntop, inet_pton, gethostbyname2.
1.92      fefe      781:   add sysinfo, recvmsg, sendmsg.
1.93      fefe      782:   add endmntent, getmntent, setmntent.
1.94      fefe      783:   fix fnmatch (thanks, Guillaume Cottenceau!)
1.96      fefe      784:   add setenv.
                    785:   remove __restrict from mntent.h, add __restrict__ removal alias for
                    786:     older gcc versions in sys/cdefs.h.
                    787:   add rlim_t, sig_atomic_t declarations.
                    788:   add sigsetjmp #define for __sigsetjmp (oops).
                    789:     (Thanks to Chris Siebenmann for these three bug reports)
1.97      fefe      790:   add a gruesome hack to printf floating point to accept %f and kludge
                    791:     together support for %.2f.  Don't look at the code, please!
1.98      fefe      792:   fixed tcsetpgrp (oops, this is embarassing!  Thanks, Chris Siebenmann)
1.99      fefe      793:   imported fix for entlib by Jeff Garzik.
1.100     fefe      794:   add glob implementation from Guillaume Cottenceau (Thanks!!)
                    795:   add libdl fragments from Olaf (Yeah!  One step closer to dynamic linking!)
1.101     fefe      796:   add REG_ICASE and word start/end handling to my regular expressions.
                    797:   my regular expressions now actually match substrings (i.e. "foobar" to "bar").
1.102     fefe      798:   wrap getcwd to comply to man page (the syscall returns the number of
                    799:     bytes, not the buffer)
                    800:   add realpath.
1.103     fefe      801:   fix vfprintf.
1.104     fefe      802:   fix *scanf %s zero termination.
                    803:   add abs, labs, llabs.
1.105     fefe      804:   add <sys/io.h>, ioperm syscall.
                    805:   add flock to <sys/file.h>
1.106     fefe      806:   fixes to bsearch and the regular expressions.
1.107     fefe      807:   add fake herror.
1.108     fefe      808:   add scandir and alphasort.
1.109     fefe      809:   add killpg
1.110     fefe      810:   implemented a gross hack to make libpthread compile when
                    811:     dietfeatures.h does not define WANT_THREAD_SAFE (it's empty then).
1.111     fefe      812:   add getaddrinfo and freeaddrinfo (man, what a fucked up interface!)
1.112     fefe      813:   fix sigsuspend (syscall had completely fscked up arguments!)
1.113     fefe      814:   RLIM_INFINITY from the kernel is broken.  Thanks to Chris Siebenmann
                    815:     for sending a patch.
1.114     fefe      816:   add getserv*.
                    817:   add WANT_FULL_RESOLV_CONF so that the DNS routines use "domain" and
                    818:     "search" from resolv.conf.
1.74      fefe      819: 
1.73      fefe      820: 0.9:
1.65      fefe      821:   fixed initgroups (oops)
1.66      fefe      822:   Cleanup appending file open for stdio (thanks, James Antill)
                    823:   imported vfprintf fix from James Antill.
1.67      fefe      824:   add fnmatch
                    825:   change index, rindex and bcmp as weak ELF symbols (were #defined before)
1.68      fefe      826:   Olaf added character classes to *scanf.
1.69      fefe      827:   Put object and library files into a separate directory (bin-$ARCH).
                    828:   Add "cross" make target to make all architectures.
                    829:   Add "diet" program and man page.
1.70      fefe      830:   Add getgrnam, getgrgid
1.71      fefe      831:   Add cfmakeraw (Thanks, Antonio Musumeci)
1.72      fefe      832:   localtime won't call gettimeofday when the tzfile parser is used.
1.65      fefe      833: 
1.64      fefe      834: 0.8:
1.34      fefe      835:   vsnprintf(0,...) estimated the length of strings with a padding width
                    836:     incorrectly.
1.35      fefe      837:   new reboot() from Olaf.
1.36      fefe      838:   added prototypes for getsockopt and setsockopt.
1.39      fefe      839:   added experimental sem* and shm*
1.38      fefe      840:   define EXIT_SUCCESS and EXIT_FAILURE
1.40      fefe      841:   added setvbuf (only changes mode, not buffer)
1.41      fefe      842:   added dietwarning.h (woohoo, linker warnings!) and used it to warn of
                    843:     insecurity (system, sprintf) or bloat (printf and stdio).
1.42      fefe      844:   added qsort() and bsearch().  Benchmark on 1000 random ints:
                    845:     glibc: 679414 cycles qsort and 3352 cycles bsearch
                    846:     diet libc: 300010 cycles qsort, 553 cycles bsearch
                    847:     I have no idea why glibc is so slow.
1.43      fefe      848:   added __isnan (references by libm.a from glibc).
                    849:   added popen() and pclose().  Now the diet libc can link slsh (from
                    850:     S-Lang!)
1.44      fefe      851:   corrected usleep.  It was more of an msleep until now.
1.45      fefe      852:   corrected __dtostr (it looped when trying to format "0.0").
                    853:   several fixes to stdio (thanks to S-Lang's excellent test suite!)
1.46      fefe      854:   added ungetc (does it work?)
1.47      fefe      855:   added inet_aton (yuck!)
1.50      fefe      856:   added gethostbyname, gethostbyaddr, gethostbyname_r and gethostbyaddr_r
1.48      fefe      857:   added h_errno and __h_errno_location
                    858:   added inet_ntoa
1.49      fefe      859:   added setpgrp and getpgrp, strsignal and execv (thanks, Olaf)
1.51      fefe      860:   add bcopy, index, rindex macros
                    861:   add isgraph and isxdigit
1.52      fefe      862:   add strftime (ugh!!!)
1.53      olaf      863:   Olaf fixed strftime, gmtime_r leap year bug.
1.54      fefe      864:   Jeff Garzik contributed a spec file.  I put it in contrib and hope
                    865:     everbody knows what to do with it...
                    866:   Olaf checked in a ton of libpthread stuff.
1.55      fefe      867:   added mkstemp using /dev/urandom (harder to guess than getpid()).
1.56      fefe      868:   add large file backwards compatibility support (so gzip will run on
                    869:     kernel 2.2 and 2.0)
1.57      fefe      870:   added shutdown
1.58      fefe      871:   added nice
                    872:   added pseudo-locale support for is* (they are now weak aliases,
                    873:     isupper -> __isupper_ascii etc).  So, for example, liblatin1 can
                    874:     overwrite the default is* functions.
1.59      fefe      875:   added liblatin1.a
1.60      fefe      876:   added tzfile implementation (does it work for anyone else?)
1.61      fefe      877:   added syslog(3) (thanks to Rene Müller!)
1.62      fefe      878:   Jeff Garzik contributed getgr*, getpw* and getsp* in one tiny package.
                    879:     Thanks!
1.63      fefe      880:   merged duplicate code in execv and execvp into exec_lib.o
1.34      fefe      881: 
1.21      fefe      882: 0.7.2:
                    883:   added several prototypes to already implemented functions and
                    884:     <sys/reboot.h>.  Thanks for Abraham for pointing this out.
1.22      fefe      885:   added prototypes for process group and dup syscalls.  Thanks to
                    886:     Abraham again.  He also contributed an implementation for daemon(),
                    887:     an ugly BSD hack.  I decided to diversify the lib/ directory a
                    888:     little and now created a libugly/ directory for stuff like system()
                    889:     and daemon() ;-)
                    890:   added libstdio and moved all that stdio crap from lib/ there.  The
                    891:     idea is to start separating now what we will separate for shared
                    892:     libraries anyway.
1.26      fefe      893:   optimized x86 unified-syscall by Olaf.
1.27      fefe      894:   added limits.h, removed __ARCHBITS from endian.h (use __WORDSIZE from
                    895:     limits.h instead)
                    896:   added remove.c and enough cruft to limits.h to make it compile lzo,
                    897:     lzop and bzip2.
1.28      fefe      898:   added mktime, asctime_r, asctime and ctime (needed for gzip).
                    899:   Someone will need to implement a reader for the glibc localtime file
1.31      fefe      900:     format some day (man tzfile, ugh!) :-(
1.29      fefe      901:   added unlink prototype to unistd.h.
                    902:   added gmtime and gmtime_r.
1.31      fefe      903:   fixed sparc unified syscall error handling (please upgrade!).
1.30      fefe      904:   removed readdir glibc compatibility cruft.
1.31      fefe      905:   removed stat glibc compatibility cruft.
1.32      fefe      906:   oops, my fread was broken for pipes.
1.33      fefe      907:   Olaf found a bug in pipe() for sparc, too.
1.21      fefe      908: 
1.9       fefe      909: 0.7.1:
1.11      fefe      910:   optimized away the static arrays from __ltostr and __lltostr.
                    911:   optimized away the static arrays (and more!) from strtoul and strtoull.
                    912:   added system (by Olaf).
1.12      fefe      913:   added tolower and toupper
1.13      fefe      914:   added getopt from Olaf (~600 bytes on x86!)
1.14      fefe      915:   added clone for mips (by Olaf).
                    916:   fixed longjmp and setjmp on sparc not to require glibc include files.
1.15      olaf      917:   added pause for all (by Olaf).
1.17      fefe      918:   added __attribute__ ((__const__)) to ctype.h
1.16      fefe      919:   added isupper and islower.
                    920:   added putc and putchar as macros.
1.17      fefe      921:   added strcasecmp and strncasecmp (thanks to Abraham vd Merwe for
                    922:     insightful discussions and patches I partially used for the last three)
1.18      fefe      923:   added getpriority and setpriority (also by Abraham)
1.19      fefe      924:   oops, I broke strtoul in a recent optimization attempt.
1.20      fefe      925:   oi, setjmp and longjmp were broken on other platforms, too!
                    926:     Thanks to Sébastien Côté for reporting this.
1.9       fefe      927: 
                    928: 0.7:
1.6       olaf      929:   clone support for i386,alpha,arm and sparc by Olaf.
1.1       cvs       930:   Initial dynamic loading glue for i386, also by Olaf.
                    931:   We don't have a dynamic loader yet, so this is not yet usable.
                    932:   added readv, sigdelset, sigaltstack, sigfillset, sigismember, usleep,
                    933:     vsprintf, writev, all by Olaf.
1.2       fefe      934:   imported readdir fix from Guillaume.  Mhh, can the kernel interface
                    935:     really be this broken?
1.3       fefe      936:   Found a kludgy way to detect whether the kernel includes define struct
                    937:     stat64 (they also define STAT64_HAS_BROKEN_ST_INO).  If this does
                    938:     not work for you, please tell me!
1.4       fefe      939:   Removed bogus __seek_types enum, it's a bunch of #defines now.
1.7       fefe      940:   Fixed stdio line buffering.  The code was already there but I forgot
                    941:     to mark stdio and stdout as line buffered.  This should really be
                    942:     done dynamically using isatty, though.
1.8       fefe      943:   Removed superfluous "if (1)" in execvp.c
1.1       cvs       944: 
                    945: 0.6.14:
                    946:   *scanf did not append the 0 byte for %s.
                    947:   added creat and changed creat to call open directly instead of open64.
                    948:   did for fread what 0.6.10 did for fwrite.
                    949:   repaired buffered stdio a little (line buffering is still not
                    950:     supported).
                    951:   [All of these bugs have been reported by Guillaume.  Thanks!]
                    952:   added __pure__ to strchr and strrchr in <string.h>
                    953: 
                    954: 0.6.13:
                    955:   included COPYING to make clear that the diet libc is covered by the
                    956:     GNU General Public License (and _not_ the LGPL).  That means that
                    957:     you need to obtain a license from me if you want to use the diet
                    958:     libc in a proprietary program that you want to distribute.
                    959:   The x86 unified syscall swapped arguments #4 and #5 and noone
                    960:     noticed until now!  Thanks to Guillaume Cottenceau for reporting
                    961:     this!
                    962:   The malloc had a subtle bug with small allocations that could cause
                    963:     segfault.  Guillaume reported it, Olaf fixed it.
                    964: 
                    965: 0.6.12:
                    966:   added assert, statfs and fstatfs
                    967:   added include/net/if.h so fget compiles again.
                    968: 
                    969: 0.6.11:
                    970:   added putenv.
                    971: 
                    972: 0.6.10:
                    973:   fixed fwrite.  It returned the number of bytes written, not the number
                    974:     of records.  Thanks to Albert D. Cahalan for pointing this out.
                    975:   fixed fgets.  It returned EOF on empty lines.  Thanks, Erik Frey.
                    976:   added brk and sbrk.  harold@nb.com.sg made me do it.
                    977: 
                    978: 0.6.9:
                    979:   fixed execvp not to return on ENOENT
                    980:   did for {open|read|close|seek|tell}dir what I did for stat before.
                    981:     The glibc compatibility part is currently non-functional.
                    982:   fixed white space handling in sscanf " (" would not match " (".
                    983:   fixed printf to accept 'l' flag.
                    984:   fixed getpwuid (ignored last line)
                    985: 
                    986: 0.6.8:
                    987:   Olaf contributed initial thread-safe syscalls for i386, alpha, sparc,
                    988:     mips and arm.  I did the one for ppc.  They can be enabled in dietfeatures.h.
                    989:   added strlcpy and strlcat from OpenBSD.
                    990:   added stat64, fstat64 and lstat64.
                    991:   added endian.h and made ending of strlen.c endianness-aware
                    992:   added string routines size tweak to dietfeatures.h.  Most of the
                    993:     string routines have been unrolled.  This is up to three times as
                    994:     fast but creates up to three times larger code.  Now you can disable
                    995:     the unrolling.
                    996:   added sendfile.
                    997:   I also added pread.  It works on x86 and sparc but not on ppc and mips.
                    998:     I have no idea what's going on.  strace disagrees with the kernel.
                    999:     Can anyone help?  I asked the Linux kernel mailing list for help, too.
                   1000:   added a few aliases of the type __libc_open for open.  nm on
                   1001:     libpthreads.so indicates that we will need them.
                   1002: 
                   1003: 0.6.7:
                   1004:   the sources now compile without warnings with -Wall.
                   1005:   printf now prints "(null)" when %s is passed NULL.  This can be
                   1006:     removed with WANT_NULL_PRINTF in dietfeatures.h
                   1007:   added vfprintf, execl, ttyname.
                   1008:   stat, lstat and fstat are now #defined to __dietstat, __dietlstat and
                   1009:     __dietfstat so they can use the normal kernel struct stat.
                   1010:     stat, lstat and fstat are now C wrappers that convert to the glibc
                   1011:     struct stat.  So we can avoid that overhead for programs that use
                   1012:     dietlibc headers.
                   1013: 
                   1014: 0.6.6:
                   1015:   changed the Makefiles so you can now set CFLAGS on the command line
                   1016:   added memccmp (analogous to memccpy) and strncmp.
                   1017:   Olaf fixed another bug in the sparc unified syscall.
                   1018:   Paul Clifford contributed a C version of his strlen.S that is much
                   1019:     more efficient than the previous strlen on all platforms!  It also
                   1020:     looks like technology from Roswell. ;-}
                   1021:   added a "real" stdio.  Well, almost.  Please contribute!
                   1022:   added dietfeatures.h so you can remove features you don't need.
                   1023:   removed debug code from vsnprintf that changed \0 to ' ' (argh!).
                   1024:   stdio now works with simple programs and minigzip from libz.
                   1025:   stdio uses some major trickery to avoid linking the stdio, stderr and
                   1026:     stdout (and reserving space for them) when they are not used.
                   1027: 
                   1028: 0.6.5:
                   1029:   Red Plait <redplait@ixcelerator.com> found several bugs in diet libc,
                   1030:     most of them bugs in the new header files, but also missing sigset
                   1031:     functions.
                   1032:   Paul Clifford contributed an assembly strlen.S for ARM and fixed
                   1033:     several bugs.
                   1034:   Fixed ppc/setjmp and mips/pipe.
                   1035:   Olaf contributed a new sparc unified syscall.
                   1036: 
                   1037: 0.6.4:
                   1038:   declared is* static inline in getservent.
                   1039:   added assert_fail, strtoul, isalpha, isdigit, isalnum, isascii.
                   1040:   changed strlen to return 0 when passed NULL.
                   1041:   new, much smaller unified syscall for MIPS.  Thanks to Olaf the Mad
                   1042:     Scientist who actually implemented this without access to a MIPS
                   1043:     box, just from reading the architecture manual.  And it worked out
                   1044:     of the box.
                   1045:   started a set of system includes, mainly so that I can use lcc and
                   1046:     my alpha-linux cross compiler (which is unable to cross-compile
                   1047:     glibc).  diet libc can now be compiled without any include files
                   1048:     from a normal libc.  The includes do declare more than diet libc
                   1049:     currently delivers and they are still far from complete for real
                   1050:     applications.
                   1051:   I will only add assembly versions that are smaller _and_ faster than
                   1052:     the C version.  Larger routines are only accepted if they are called
                   1053:     very often and are substantially faster.
                   1054:   added i386 assembly strchr, which is smaller and faster than the old
                   1055:     version.  It is, however, larger than the version contributed by
                   1056:     proton (thanks, anyway).
                   1057:   added i386 strlen (31% faster, 14% smaller)
                   1058:   "make t" will now create a map file called "mapfile".
                   1059: 
                   1060: 0.6.3:
                   1061:   added sys_errlist, strerror and perror
                   1062:   added isblank
                   1063:   added atol
                   1064: 
                   1065: 0.6.2:
                   1066:   mmap for ARM didn't compile.  Thanks, Paul!
                   1067: 
                   1068: 0.6.1:
                   1069:   split mmap into the architecture specific subdirectories.
                   1070:   getenv now copes with environ==NULL, thanks Paul Clifford.
                   1071:   Paul also contributed a smaller ARM startup code.
                   1072: 
                   1073: 0.6:
                   1074:   strcat returned the wrong result.  Thanks, Dietz Pröpper.
                   1075:   strtod now understands a negative exponent (oops, thanks Bertram Barth)
                   1076:   Port to arm-linux-gnu, but on the Netwinder I use for testing the
                   1077:     __dtostr does not work (I have no idea why!)
                   1078:   The MIPS port now uses (much smaller) non-PIC code.  That means that
                   1079:     the applications you link against diet libc also have to be compiled
                   1080:     non-PIC.  I suggest copying the CFLAGS from the diet libc Makefile.
                   1081:     Thanks to Ralf Bächle for helping me with this!
                   1082:   I made subdirectories for the architectures and use VPATH to override
                   1083:     VPATH so that make finds the source file automatically.  That should
                   1084:     simplify the sources greatly.
                   1085:   Olaf Dreesen contributed Alpha support including setjmp and longjmp!
                   1086:   ARM and MIPS now also have setjmp and longjmp
                   1087:   "compile" and "load" are now make targets.  Use them for djb programs.
                   1088:   added contrib/elftrunc.c which will remove unnecessary ELF headers.
                   1089:     Again, contributed from Olaf.  Great work!
                   1090: 
                   1091: 0.5.12:
                   1092:   printf also does signed numbers.
                   1093:   If you don't use atexit, dietlibc now does not link exit, only _exit.
                   1094:   *printf now correctly returns the number of bytes written.
                   1095:   Olaf contributed experimental sscanf and vsscanf implementations.
                   1096:   If passed NULL as buffer, snprintf will not write anything but still
                   1097:     return the number of bytes it would have written.
                   1098:   Initial MIPS port!   (Oh, the agony!)
                   1099:     No setjmp and longjmp support yet!  Please contribute!
                   1100:   I even implemented unified syscalls for MIPS.  Still, MIPS code is
                   1101:     almost twice the size of SPARC code.  If anyone knows why: please
                   1102:     tell me!
                   1103: 
                   1104: 0.5.11:
                   1105:   I implemented new unified syscalls for x86, sparc and ppc, this time based
                   1106:     on .s files and not .c files, and I moved the syscalls into
                   1107:     subdirectores to clean the dietlibc sources up a little.
                   1108:   A binary consisting of printf("%s is %d\n","olaf",23) is now
                   1109:     2864 bytes on sparc
                   1110:     2488 bytes on intel
                   1111:   I kludgily implemented fprintf(stdout,... and fprintf(stderr,...
                   1112:     to make a few more applications work.
                   1113:   Olaf Dreesen also implemented some unified syscall stuff for x86.
                   1114:   He discovered that with our unified syscall interface it actually
                   1115:     costs <10 bytes total to make all system calls thread safe!
                   1116:   I implemented atexit() (can register up to 4 callbacks).
                   1117:   I implemented strtod and __dtostr (the opposite).  Now we can add
                   1118:     floating point support to vsnprintf and sscanf!
                   1119: 
                   1120: 0.5.10:
                   1121:   I actually saw that I can not only merge the errno handling code of
                   1122:     the system calls on x86, I can also merge the rest (including the
                   1123:     arguments) except for setting the system call number.  All those
                   1124:     system calls are now just a jump to a unified system call handler.
                   1125:     I got rid of x86openclose again.  The savings are substantial:
                   1126:     chown from embutils went from 7664 to 7184 bytes!
                   1127:     If I'd move the system call wrappers to assembly language, I could
                   1128:     even reduce the alignment (does not matter since it's just a jump
                   1129:     anyway) and get rid of the "ret" behind each jump (one byte per
                   1130:     system call!)
                   1131: 
                   1132: 0.5.9:
                   1133:   added memchr, strpbrk, strstr, strtol, isspace (hehe)
                   1134:   fixed strdup
                   1135:   fixed return values for strcpy and strcat (thanks to Norbert Berzen)
                   1136:   Olaf Dreesen contributed a strtol and initial {sn|vsn|}printf implementation
                   1137:     (no signed integers, only strings and unsigned integers (but
                   1138:     supporting octal, hex and decimal).  Thanks, Olaf!  (by the way:
                   1139:     that code must be wonderful, I don't understand it at all *bg*)
                   1140:     Olaf's printf does understand padding like in "%08d" and "%8d" and
                   1141:     automatically pads pointers with '0'.
                   1142:   Rewrote the x86 start code, old: 22 instructions, new: 12 instructions.
                   1143:   Thanks to proton for inspiration on this.
                   1144:   The new x86 start code also does not reference exit any more, thus saving
                   1145:   64 bytes for executables that don't call exit explicitly.
                   1146:     [insert maniacal laughter] EVERY BYTE COUNTS!1!! ;-)
                   1147:   Moved errno and environ to start.S, saving no byte binary size but
                   1148:     speeding up compilation and slightly shortening dietlibc.a ;-)
                   1149:   For x86: joined open and close into one assembler file, sharing the
                   1150:     errno handling.  This is a feasibility test and it actually saves a
                   1151:     few bytes.  I think I will reimplement the _syscall[1-6] macros on
                   1152:     all platforms now to share the errno handling code for them.
                   1153: 
                   1154: 0.5.8:
                   1155:   fixed strchr to be able to look for 0.
                   1156: 
                   1157:   added _llseek, ftruncate, getpgid, getresgid, getresuid, getsid,
                   1158:   memccpy, memmove, mprotect, setregid, setresgid, setresuid, setreuid,
                   1159:   strncpy, swapon, truncate, strtok, strtok_r, strspn, strcspn (all
                   1160:   contributed by Olaf Dreesen)
                   1161: 
                   1162:   added execvp, getcwd
                   1163: 
                   1164:   fixed __xmknod
                   1165: 
                   1166:   Note: can it be that the ftw interface really is so broken that I
                   1167:   cannot implement it without having to implement some searching data
                   1168:   structure?  I included an experimental ftw implementation that will
                   1169:   not follow symlinks.
                   1170: 
                   1171: 0.5.7:
                   1172:   oops, if_nametoindex was broken!
                   1173: 
                   1174: 0.5.6:
                   1175:   ported to ppc-linux.
                   1176:   fixed i386 sigsetjmp (I mistyped the function name)
                   1177:   included sigjmp.c
                   1178: 
                   1179: 0.5.5:
                   1180:   added wait, sys_siglist, longjmp/setjmp/sigsetjmp for i386 and sparc
                   1181:   actually, it wasn't fork that wasn't working for sparc, it was pipe.
                   1182:   I fixed it now.
                   1183:   dietlibc/SPARC assumes -msupersparc (does not provide div, mul, etc)
                   1184:   fixed readdir to use getdents and not the intel inline asm
                   1185: 
                   1186: 0.5.4:
                   1187:   ported to sparclinux (sparc32 only).  Beware: does not work yet.
                   1188:   added raise, abort, readlink, strcat, geteuid, geteuid, wait3, access
                   1189: 
                   1190: 0.5.3:
                   1191:   added tcsetattr and getenv to compile e3
                   1192: 
                   1193: 0.5.2:
                   1194:   added vhangup, tcgetattr, isatty and memcmp for fgetty
                   1195:     (http://www.fefe.de/fgetty/)
                   1196:   added localtime from uC-libc.
                   1197: 
                   1198: 0.5.1:
                   1199:   stat and friends actually work now.  Yuck!  Another case of
                   1200:     translation between kernel and userland.  Why can't the kernel
                   1201:     people and the libc people simply agree on a standard?
                   1202:   removed many unnecessary includes to speed up compilation.
                   1203:   added -fomit-frame-pointer and i386 compilation target to reduce code size.
                   1204:   inlined socketcall to reduce code size.
                   1205:   "load" and "compile" are examples for djb code.
                   1206: 
                   1207: 0.5:
                   1208:   Olaf Dreesen contributed a much smaller implementation of malloc and friends.
                   1209:   each object file is now treated with "strip -x -R .note -R .comment"
                   1210:   split each system call into a separate object file
                   1211:   added ntohs, htons, alarm, if_indextoname and if_nametoindex
                   1212: 
                   1213: 0.4.1:
                   1214:   oops, the strchr implementation was wrong.  Thanks Jens Laas!
                   1215: 
                   1216: 0.4:
                   1217:   copied opendir and friends from uC-libc.
                   1218:   added getservent and getservby* in gerservent.c
                   1219: 
                   1220: 0.3:
                   1221:   remove readdir system call
                   1222:   added getdents system call
                   1223:   added getpwnam/getpwuid implementation in getpwnam.c
                   1224:   added a few string functions (in str*.c)
                   1225: 

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