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