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