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