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