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Annotation of dietlibc/CHANGES, revision 1.148

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

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