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