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