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