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