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