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