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