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