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