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