Annotation of dietlibc/CHANGES, revision 1.221
1.209 fefe 1: 0.14:
1.210 fefe 2: a new i386/atol.S that is 4 bytes smaller (and faster, too!). Thanks,
3: Thomas Ogrisegg!
1.211 fefe 4: Thomas also contributed a PA-RISC port including testandset, so
5: libpthread will work once we implement clone! Great work, Thomas.
1.212 fefe 6: made the fake locale more believable.
7: If you need gettext, use http://www.ca.postgresql.org/~petere/gettext.html
1.213 fefe 8: moved _exit into the unified syscall on x86.
1.214 fefe 9: Uwe Ohse found many more bugs:
10: getpass EINTR handling, ttyname, sysconf_cpus with SLASH_PROC_OK,
11: liblatin1 was more or less completely broken if you gave it chars as
12: arguments, not ints (signedness). execvp had a buffer overflow in
13: case a PATH element exceeded PATH_MAX, but it's not a security
14: problem since setuid programs need to set their path to some known
15: value anyway.
1.219 fefe 16: hasmntopt did not work with foo=bar style options
1.217 fefe 17: Uwe also improved ftw's stack usage.
1.214 fefe 18: Put movl instead of popl rationale in comment in i386/unified.S since
19: three people have suggested saving a few bytes with popl now ;)
1.215 fefe 20: I discovered __attribute__((malloc)) and started using it. For gcc 3,
21: it improves the optimizer when functions return malloced pointers.
1.216 fefe 22: Steven Rostedt pointed out that my setvbuf was broken with regard to
23: size==0 and sent a patch to fix it.
1.218 fefe 24: Thomas Ogrisegg made setenv smaller.
1.220 olaf 25: Olaf: implemented the parisc clone and an atomic testandset, modified the
26: libpthread to respect the parisc UPgrowing stack. still non functional,
27: because the unified syscall uses errno :(
1.221 ! fefe 28: tcgetospeed read from the wrong termios field. Thanks, Gunnar Ritter!
1.209 fefe 29:
1.193 fefe 30: 0.13:
1.194 fefe 31: add readdir64 and automatic mapping if _FILE_OFFSET_BITS == 64
1.199 fefe 32: make diet not include the linker safeguard stuff when preprocessing
1.207 fefe 33: Olaf: port to S/390!
1.196 leitner 34: me: fix vfork (it was put into dietlibc.a twice)
1.197 leitner 35: res_query did not initialize last
1.199 fefe 36: diet (not diet-dyn, of course) now adds -static to the gcc command line
1.198 leitner 37: fixed fflush on input streams (tic from ncurses exposed this)
1.199 fefe 38: duh, there is an alarm system call, too, so we use it and not setitimer
1.200 fefe 39: fix comparison in gmtime_r that caused Jan 1 to be converted to Dec 32.
1.201 fefe 40: rewrote __dtostr (it also has one more argument now)
1.205 fefe 41: Thanks to Erik Troan for bringing these to my attention:
1.204 fefe 42: make putenv behave like glibc (putenv("HOME") == unsetenv("HOME"))
43: fix strncat for the case where n == 0 (security implications?)
44: fix bsearch (it didn't find the very last element in the array, same
45: bug in both the C and the i386 assembly version).
1.205 fefe 46: fixed FNM_PATHNAME in fnmatch
1.204 fefe 47: fix brk (the syscall was documented incorrectly in the Linux man page)
48: Thanks, Thomas Ogrisegg!
1.205 fefe 49: added negated character classes to fnmatch (not required by POSIX)
1.206 fefe 50: make the utmp routines open utmp read-only if read-write doesn't work.
1.208 fefe 51: remove syscalls.c directory, it is obsolete now with unified syscalls
1.193 fefe 52:
1.164 fefe 53: 0.12:
54: more contributions from Frank Klemm.
1.165 fefe 55: iconv can now do UCS-2, too.
1.167 fefe 56: Imported several x86 assembly routines from Wouter van Kleunen.
1.166 fefe 57: Lots of bug fixes, and several more i386 specific versions of common
58: routines to make them smaller.
1.168 fefe 59: add memmem (a GNU extension that looks useful)
1.170 fefe 60: several changes from Michal Ludvig: inttypes.h gets C99 macros,
1.168 fefe 61: add pivot_root syscall, %n for *scanf.
1.169 fefe 62: add adjtimex (thanks, Laurent BERCOT)
1.171 fefe 63: add Frank Klemm's optimized md5
1.172 fefe 64: add -Os option to diet (see diet.1).
1.173 fefe 65: several IPv6 constants and HZ were missing, thanks Johannes Kloos.
1.174 fefe 66: add 32-bit uid/gid syscalls.
1.175 fefe 67: add rand48 (thanks, Johannes Kloos)
1.176 fefe 68: fixed a lot of bugs in getopt* (thanks, Johannes)
1.177 fefe 69: add strxfrm and tweak limits.h. glib-1.3.8 now compiles without changes.
70: add a few more module syscalls. modutils-2.4.9 now compiles without changes.
71: fix gethostent alias list termination. Major oops.
1.178 fefe 72: add execle and two DNS constants (from Johannes Kloos).
1.179 fefe 73: opendir did not close-on-exec (thanks, Laurent Bercot).
1.180 fefe 74: DNS will now properly signal errors and set h_errno.
75: A few more cleanups (thanks, Andreas Jabs and Matthias Andree).
1.181 fefe 76: Added an uber-cool linker safeguard feature! Idea by Matthias Andree.
77: If you enable WANT_SAFEGUARD in dietfeatures.h, diet will include an
78: external reference to a symbol that is only in the diet libc. So,
79: when you accidentally link a diet libc compiled object file against
80: glibc, the linker will barf. This will bloat your object files, but
81: you can remove all the references with "strip -R .note" from
82: the binaries in the end (which you should do anyway).
1.182 fefe 83: fix ARM unified syscall (select did not work).
1.183 fefe 84: add getpwent_r ala glibc and replace getpwent
85: do the same for getgrent and getspent
86: remove entlib (new code is smaller)
1.184 fefe 87: rewrite getserv* to use parselib (and provide ..._r, too)
1.185 fefe 88: add getpwnam_r and getpwuid_r
1.186 fefe 89: rewrite getproto* to use parselib (and protive ..._r, too)
1.187 fefe 90: Olaf muddled with the dynamic linker. It's a clean-room
91: implementation in the sense that it once worked for Olaf in a clean
92: room ;)
1.188 fefe 93: add if_nameindex and if_freenameindex.
94: fixed arm unified syscalls to work with current binutils (; is no
95: longer a line separator but starts a comment, switched to .macro)
1.189 fefe 96: changed all st_[cma]time types to signed long so comparisons against
97: LONG_MIN will work correctly. (GNU tar does this)
1.190 fefe 98: fixed two bugs regarding ungetc.
99: add getusershell, setusershell, endusershell (for vs_ftpd)
100: add prctl, dirfd (also for vs_ftpd)
1.191 fefe 101: fixed strftime (was completely hosed)
1.192 fefe 102: added real make install target
1.164 fefe 103:
1.115 fefe 104: 0.11:
105: fix major oops in DNS routines (only with WANT_FULL_RESOLV_CONF enabled).
1.116 fefe 106: fix vsscanf bug (Thanks, David Chappell).
1.117 fefe 107: add floor, ceil and memchr prototypes.
108: add __builtin_expect and expect #defines for gcc versions below 3.0
1.118 fefe 109: cleaner errno vs __errno_location handling
110: add placeholder iconv (iconv_open will always return EINVAL)
111: try to remove kernel 2.4 header dependency in IPv6 sockaddr_in6
112: initialization of getaddrinfo.
1.119 fefe 113: fix vsnprintf %X (printed lower case)
1.120 fefe 114: I wrote a new getopt. It appears to actually work (it is POSIX
115: compliant, it does not sort argv like the GNU version) and is only
116: a little over 300 bytes on x86.
1.121 fefe 117: Guillaume Cottenceau just wrote me that strncat should be even more
118: broken than it already is: it should append n bytes AND THEN \0!
119: I wonder how many programmers have produces off-by-one errors here...
1.122 fefe 120: Fix regexec offset return. autoconf now believes that diet libc has
121: POSIX regular expressions.
1.123 fefe 122: Fix fnmatch (a/b/* matched a/b/c/d even if FNM_PATHNAME was set)
1.124 fefe 123: Fix regular expression match for x* when there is no x at all.
1.125 fefe 124: Fix memory leak in error case in gethostbyname(2|). Thanks, Dietz Pröpper.
1.126 fefe 125: Add %h to vsnprintf.
1.127 fefe 126: Add FAQ.
1.128 fefe 127: Make %h work for signed numbers and add %hh to vsnprintf.
128: initgroups ignored the group argument :-(
129: remove printf references and nested functions from glob.
1.129 fefe 130: added an errno in libpthread that will display a prominent linker
131: warning.
1.131 fefe 132: started getting rid of kernel headers. Big task! :-(
1.130 fefe 133: add res_mkquery. The diet libc can now compile and link mtr.
1.132 olaf 134: Olaf: added a lot of code in libdl (not yet complete), changed the
135: startup code to make it work with his libdl and ld.so (needs still work
136: too)
1.134 fefe 137: __dns_readstartfiles only took the first domain or search path.
138: Thanks, Anthony de Boer
1.133 olaf 139: Olaf: added clone and a new unified_syscall for PowerPC
140: also dynlinker is now available (i386 only at this time)
1.135 fefe 141: crufted together a stdarg.h implementation from the various gcc headers.
1.136 fefe 142: implement getopt_long (ugh, the GNU people need professional help)
1.137 fefe 143: fixed word delimiters in regex (they looked for space, i.e. "," did
144: not work as delimiter)
1.138 fefe 145: errno.h now declares sys_errlist and sys_nerr.
1.143 fefe 146: added mkdtemp.
1.142 fefe 147: Uwe Ohse reported all of the following bugs:
148: ttyname should return 0 if !isatty.
149: realpath returns NULL if "." cannot be opened
150: putenv erroneously accepted (and mishandled) entries without "=".
151: popen returned 255 instead of 127 if /bin/sh could not be run.
152: fgetc did not set the internal EOF indicator on EOF.
153: bsearch contained an assumption about integer arithmetic overflow
154: behavior.
155: system did not set SIGCHLD and thus contained a race.
156: popen did not set close-on-exec and could leak an fd on malloc error.
1.147 fefe 157: daemon did not check whether open returns an fd below 3
158: perror did not save errno.
1.144 olaf 159: Olaf: Peter Jones reported some problems with perror; strerror had the
160: same problem.
161: Peter also posted a patch to atexit/exit. With some modifications it is
162: now implemented.
1.145 fefe 163: Unbuffered stdio and ungetc can no longer be disabled. I will try to
164: implement part of it using ELF weak symbols.
1.146 fefe 165: Added minimal sysconf (tehe) from David Chappell.
1.148 fefe 166: Added overflow handling for strtoul and strtol.
1.149 fefe 167: Added WANT_ETC_HOSTS in dietfeatures.h and made gethostbyname/2 use
168: it before falling back to DNS if enabled.
1.150 fefe 169: Added a littie backwards compatibility cruft for gpm (man, do these
170: sources stink!)
1.151 fefe 171: Added openpty.
1.152 fefe 172: Squeeze a few bytes off the is* routines, courtesy of Peter Jones.
1.154 fefe 173: Fix fseek return value.
1.155 fefe 174: Add dirname and basename.
1.156 fefe 175: Add a few i386 math routines contributed by Frank Klemm.
1.157 fefe 176: Fixed getservent (did not allow _ and - in the aliases).
177: Thanks, Oden Eriksson
1.158 fefe 178: Added a float.h so configure believes we have ANSI header files.
179: Fix a lot more stdio bugs that Uwe Ohse pointed out.
1.162 fefe 180: Olaf: has added a new scanf and printf core that is suitable for all
1.159 olaf 181: scanf and printf function implementations
1.160 fefe 182: Imported a few more functions and optimizations from Frank Klemm (he
183: also rewrote dtostr to have more precision)
1.161 olaf 184: Olaf: checked in a new sig* function family (based on rt_sig*).
185: legacy <2.2 signal-handling doesn't work at the moment.
1.163 fefe 186: Made rudimentary iconv that can convert back and forth between
187: iso-8859-1, utf-8 and ucs-4 (for debugging).
188: Thanks to Markus Kuhn for the excellent utf-8(7)!
1.115 fefe 189:
1.74 fefe 190: 0.10:
191: update getpagesize.
192: add personality.
1.75 fefe 193: add "%*s" and "%*.*s" support to vsnprintf.
1.76 fefe 194: add putchar (apparently arm-linux-gcc will substitute printf("\n")
195: with putchar('\n') behind your back...?!
1.77 fefe 196: import include/scsi/ from glibc.
1.78 fefe 197: add iopl.
1.80 fefe 198: add execl and sigdelset prototypes.
199: add getopt_long stuff to getopt.h (may compile but won't link).
1.81 fefe 200: add RPC headers (no code yet).
1.82 fefe 201: add mlockall, munlockall
1.83 fefe 202: make "diet gcc foo.c" work.
203: added Sun RPC code and removed as many warnings as possible in a
204: heroic act of self-mutilation.
205: added getproto* and getdtablesize for the RPC cruft :-(
1.84 fefe 206: added getpass. mount from util-linux actually compiles now!
207: fix the sig*set routines. mount actually works now *bg*
208: fix fwrite dividing by zero when trying to fwrite n records of size 0.
1.85 fefe 209: added an initial regex implementation (3500 bytes!!!).
1.87 fefe 210: add llseek and lseek64 with optional lseek fall-back.
1.88 fefe 211: add res_init.
212: add asprintf (ugh, what an ugly function).
1.89 fefe 213: expanded arpa/nameser.h to include backwards compatibility defines
1.90 fefe 214: add ut_name alias to ut_host in struct utmp.
215: add inet_ntop, inet_pton, gethostbyname2.
1.92 fefe 216: add sysinfo, recvmsg, sendmsg.
1.93 fefe 217: add endmntent, getmntent, setmntent.
1.94 fefe 218: fix fnmatch (thanks, Guillaume Cottenceau!)
1.96 fefe 219: add setenv.
220: remove __restrict from mntent.h, add __restrict__ removal alias for
221: older gcc versions in sys/cdefs.h.
222: add rlim_t, sig_atomic_t declarations.
223: add sigsetjmp #define for __sigsetjmp (oops).
224: (Thanks to Chris Siebenmann for these three bug reports)
1.97 fefe 225: add a gruesome hack to printf floating point to accept %f and kludge
226: together support for %.2f. Don't look at the code, please!
1.98 fefe 227: fixed tcsetpgrp (oops, this is embarassing! Thanks, Chris Siebenmann)
1.99 fefe 228: imported fix for entlib by Jeff Garzik.
1.100 fefe 229: add glob implementation from Guillaume Cottenceau (Thanks!!)
230: add libdl fragments from Olaf (Yeah! One step closer to dynamic linking!)
1.101 fefe 231: add REG_ICASE and word start/end handling to my regular expressions.
232: my regular expressions now actually match substrings (i.e. "foobar" to "bar").
1.102 fefe 233: wrap getcwd to comply to man page (the syscall returns the number of
234: bytes, not the buffer)
235: add realpath.
1.103 fefe 236: fix vfprintf.
1.104 fefe 237: fix *scanf %s zero termination.
238: add abs, labs, llabs.
1.105 fefe 239: add <sys/io.h>, ioperm syscall.
240: add flock to <sys/file.h>
1.106 fefe 241: fixes to bsearch and the regular expressions.
1.107 fefe 242: add fake herror.
1.108 fefe 243: add scandir and alphasort.
1.109 fefe 244: add killpg
1.110 fefe 245: implemented a gross hack to make libpthread compile when
246: dietfeatures.h does not define WANT_THREAD_SAFE (it's empty then).
1.111 fefe 247: add getaddrinfo and freeaddrinfo (man, what a fucked up interface!)
1.112 fefe 248: fix sigsuspend (syscall had completely fscked up arguments!)
1.113 fefe 249: RLIM_INFINITY from the kernel is broken. Thanks to Chris Siebenmann
250: for sending a patch.
1.114 fefe 251: add getserv*.
252: add WANT_FULL_RESOLV_CONF so that the DNS routines use "domain" and
253: "search" from resolv.conf.
1.74 fefe 254:
1.73 fefe 255: 0.9:
1.65 fefe 256: fixed initgroups (oops)
1.66 fefe 257: Cleanup appending file open for stdio (thanks, James Antill)
258: imported vfprintf fix from James Antill.
1.67 fefe 259: add fnmatch
260: change index, rindex and bcmp as weak ELF symbols (were #defined before)
1.68 fefe 261: Olaf added character classes to *scanf.
1.69 fefe 262: Put object and library files into a separate directory (bin-$ARCH).
263: Add "cross" make target to make all architectures.
264: Add "diet" program and man page.
1.70 fefe 265: Add getgrnam, getgrgid
1.71 fefe 266: Add cfmakeraw (Thanks, Antonio Musumeci)
1.72 fefe 267: localtime won't call gettimeofday when the tzfile parser is used.
1.65 fefe 268:
1.64 fefe 269: 0.8:
1.34 fefe 270: vsnprintf(0,...) estimated the length of strings with a padding width
271: incorrectly.
1.35 fefe 272: new reboot() from Olaf.
1.36 fefe 273: added prototypes for getsockopt and setsockopt.
1.39 fefe 274: added experimental sem* and shm*
1.38 fefe 275: define EXIT_SUCCESS and EXIT_FAILURE
1.40 fefe 276: added setvbuf (only changes mode, not buffer)
1.41 fefe 277: added dietwarning.h (woohoo, linker warnings!) and used it to warn of
278: insecurity (system, sprintf) or bloat (printf and stdio).
1.42 fefe 279: added qsort() and bsearch(). Benchmark on 1000 random ints:
280: glibc: 679414 cycles qsort and 3352 cycles bsearch
281: diet libc: 300010 cycles qsort, 553 cycles bsearch
282: I have no idea why glibc is so slow.
1.43 fefe 283: added __isnan (references by libm.a from glibc).
284: added popen() and pclose(). Now the diet libc can link slsh (from
285: S-Lang!)
1.44 fefe 286: corrected usleep. It was more of an msleep until now.
1.45 fefe 287: corrected __dtostr (it looped when trying to format "0.0").
288: several fixes to stdio (thanks to S-Lang's excellent test suite!)
1.46 fefe 289: added ungetc (does it work?)
1.47 fefe 290: added inet_aton (yuck!)
1.50 fefe 291: added gethostbyname, gethostbyaddr, gethostbyname_r and gethostbyaddr_r
1.48 fefe 292: added h_errno and __h_errno_location
293: added inet_ntoa
1.49 fefe 294: added setpgrp and getpgrp, strsignal and execv (thanks, Olaf)
1.51 fefe 295: add bcopy, index, rindex macros
296: add isgraph and isxdigit
1.52 fefe 297: add strftime (ugh!!!)
1.53 olaf 298: Olaf fixed strftime, gmtime_r leap year bug.
1.54 fefe 299: Jeff Garzik contributed a spec file. I put it in contrib and hope
300: everbody knows what to do with it...
301: Olaf checked in a ton of libpthread stuff.
1.55 fefe 302: added mkstemp using /dev/urandom (harder to guess than getpid()).
1.56 fefe 303: add large file backwards compatibility support (so gzip will run on
304: kernel 2.2 and 2.0)
1.57 fefe 305: added shutdown
1.58 fefe 306: added nice
307: added pseudo-locale support for is* (they are now weak aliases,
308: isupper -> __isupper_ascii etc). So, for example, liblatin1 can
309: overwrite the default is* functions.
1.59 fefe 310: added liblatin1.a
1.60 fefe 311: added tzfile implementation (does it work for anyone else?)
1.61 fefe 312: added syslog(3) (thanks to Rene Müller!)
1.62 fefe 313: Jeff Garzik contributed getgr*, getpw* and getsp* in one tiny package.
314: Thanks!
1.63 fefe 315: merged duplicate code in execv and execvp into exec_lib.o
1.34 fefe 316:
1.21 fefe 317: 0.7.2:
318: added several prototypes to already implemented functions and
319: <sys/reboot.h>. Thanks for Abraham for pointing this out.
1.22 fefe 320: added prototypes for process group and dup syscalls. Thanks to
321: Abraham again. He also contributed an implementation for daemon(),
322: an ugly BSD hack. I decided to diversify the lib/ directory a
323: little and now created a libugly/ directory for stuff like system()
324: and daemon() ;-)
325: added libstdio and moved all that stdio crap from lib/ there. The
326: idea is to start separating now what we will separate for shared
327: libraries anyway.
1.26 fefe 328: optimized x86 unified-syscall by Olaf.
1.27 fefe 329: added limits.h, removed __ARCHBITS from endian.h (use __WORDSIZE from
330: limits.h instead)
331: added remove.c and enough cruft to limits.h to make it compile lzo,
332: lzop and bzip2.
1.28 fefe 333: added mktime, asctime_r, asctime and ctime (needed for gzip).
334: Someone will need to implement a reader for the glibc localtime file
1.31 fefe 335: format some day (man tzfile, ugh!) :-(
1.29 fefe 336: added unlink prototype to unistd.h.
337: added gmtime and gmtime_r.
1.31 fefe 338: fixed sparc unified syscall error handling (please upgrade!).
1.30 fefe 339: removed readdir glibc compatibility cruft.
1.31 fefe 340: removed stat glibc compatibility cruft.
1.32 fefe 341: oops, my fread was broken for pipes.
1.33 fefe 342: Olaf found a bug in pipe() for sparc, too.
1.21 fefe 343:
1.9 fefe 344: 0.7.1:
1.11 fefe 345: optimized away the static arrays from __ltostr and __lltostr.
346: optimized away the static arrays (and more!) from strtoul and strtoull.
347: added system (by Olaf).
1.12 fefe 348: added tolower and toupper
1.13 fefe 349: added getopt from Olaf (~600 bytes on x86!)
1.14 fefe 350: added clone for mips (by Olaf).
351: fixed longjmp and setjmp on sparc not to require glibc include files.
1.15 olaf 352: added pause for all (by Olaf).
1.17 fefe 353: added __attribute__ ((__const__)) to ctype.h
1.16 fefe 354: added isupper and islower.
355: added putc and putchar as macros.
1.17 fefe 356: added strcasecmp and strncasecmp (thanks to Abraham vd Merwe for
357: insightful discussions and patches I partially used for the last three)
1.18 fefe 358: added getpriority and setpriority (also by Abraham)
1.19 fefe 359: oops, I broke strtoul in a recent optimization attempt.
1.20 fefe 360: oi, setjmp and longjmp were broken on other platforms, too!
361: Thanks to Sébastien Côté for reporting this.
1.9 fefe 362:
363: 0.7:
1.6 olaf 364: clone support for i386,alpha,arm and sparc by Olaf.
1.1 cvs 365: Initial dynamic loading glue for i386, also by Olaf.
366: We don't have a dynamic loader yet, so this is not yet usable.
367: added readv, sigdelset, sigaltstack, sigfillset, sigismember, usleep,
368: vsprintf, writev, all by Olaf.
1.2 fefe 369: imported readdir fix from Guillaume. Mhh, can the kernel interface
370: really be this broken?
1.3 fefe 371: Found a kludgy way to detect whether the kernel includes define struct
372: stat64 (they also define STAT64_HAS_BROKEN_ST_INO). If this does
373: not work for you, please tell me!
1.4 fefe 374: Removed bogus __seek_types enum, it's a bunch of #defines now.
1.7 fefe 375: Fixed stdio line buffering. The code was already there but I forgot
376: to mark stdio and stdout as line buffered. This should really be
377: done dynamically using isatty, though.
1.8 fefe 378: Removed superfluous "if (1)" in execvp.c
1.1 cvs 379:
380: 0.6.14:
381: *scanf did not append the 0 byte for %s.
382: added creat and changed creat to call open directly instead of open64.
383: did for fread what 0.6.10 did for fwrite.
384: repaired buffered stdio a little (line buffering is still not
385: supported).
386: [All of these bugs have been reported by Guillaume. Thanks!]
387: added __pure__ to strchr and strrchr in <string.h>
388:
389: 0.6.13:
390: included COPYING to make clear that the diet libc is covered by the
391: GNU General Public License (and _not_ the LGPL). That means that
392: you need to obtain a license from me if you want to use the diet
393: libc in a proprietary program that you want to distribute.
394: The x86 unified syscall swapped arguments #4 and #5 and noone
395: noticed until now! Thanks to Guillaume Cottenceau for reporting
396: this!
397: The malloc had a subtle bug with small allocations that could cause
398: segfault. Guillaume reported it, Olaf fixed it.
399:
400: 0.6.12:
401: added assert, statfs and fstatfs
402: added include/net/if.h so fget compiles again.
403:
404: 0.6.11:
405: added putenv.
406:
407: 0.6.10:
408: fixed fwrite. It returned the number of bytes written, not the number
409: of records. Thanks to Albert D. Cahalan for pointing this out.
410: fixed fgets. It returned EOF on empty lines. Thanks, Erik Frey.
411: added brk and sbrk. harold@nb.com.sg made me do it.
412:
413: 0.6.9:
414: fixed execvp not to return on ENOENT
415: did for {open|read|close|seek|tell}dir what I did for stat before.
416: The glibc compatibility part is currently non-functional.
417: fixed white space handling in sscanf " (" would not match " (".
418: fixed printf to accept 'l' flag.
419: fixed getpwuid (ignored last line)
420:
421: 0.6.8:
422: Olaf contributed initial thread-safe syscalls for i386, alpha, sparc,
423: mips and arm. I did the one for ppc. They can be enabled in dietfeatures.h.
424: added strlcpy and strlcat from OpenBSD.
425: added stat64, fstat64 and lstat64.
426: added endian.h and made ending of strlen.c endianness-aware
427: added string routines size tweak to dietfeatures.h. Most of the
428: string routines have been unrolled. This is up to three times as
429: fast but creates up to three times larger code. Now you can disable
430: the unrolling.
431: added sendfile.
432: I also added pread. It works on x86 and sparc but not on ppc and mips.
433: I have no idea what's going on. strace disagrees with the kernel.
434: Can anyone help? I asked the Linux kernel mailing list for help, too.
435: added a few aliases of the type __libc_open for open. nm on
436: libpthreads.so indicates that we will need them.
437:
438: 0.6.7:
439: the sources now compile without warnings with -Wall.
440: printf now prints "(null)" when %s is passed NULL. This can be
441: removed with WANT_NULL_PRINTF in dietfeatures.h
442: added vfprintf, execl, ttyname.
443: stat, lstat and fstat are now #defined to __dietstat, __dietlstat and
444: __dietfstat so they can use the normal kernel struct stat.
445: stat, lstat and fstat are now C wrappers that convert to the glibc
446: struct stat. So we can avoid that overhead for programs that use
447: dietlibc headers.
448:
449: 0.6.6:
450: changed the Makefiles so you can now set CFLAGS on the command line
451: added memccmp (analogous to memccpy) and strncmp.
452: Olaf fixed another bug in the sparc unified syscall.
453: Paul Clifford contributed a C version of his strlen.S that is much
454: more efficient than the previous strlen on all platforms! It also
455: looks like technology from Roswell. ;-}
456: added a "real" stdio. Well, almost. Please contribute!
457: added dietfeatures.h so you can remove features you don't need.
458: removed debug code from vsnprintf that changed \0 to ' ' (argh!).
459: stdio now works with simple programs and minigzip from libz.
460: stdio uses some major trickery to avoid linking the stdio, stderr and
461: stdout (and reserving space for them) when they are not used.
462:
463: 0.6.5:
464: Red Plait <redplait@ixcelerator.com> found several bugs in diet libc,
465: most of them bugs in the new header files, but also missing sigset
466: functions.
467: Paul Clifford contributed an assembly strlen.S for ARM and fixed
468: several bugs.
469: Fixed ppc/setjmp and mips/pipe.
470: Olaf contributed a new sparc unified syscall.
471:
472: 0.6.4:
473: declared is* static inline in getservent.
474: added assert_fail, strtoul, isalpha, isdigit, isalnum, isascii.
475: changed strlen to return 0 when passed NULL.
476: new, much smaller unified syscall for MIPS. Thanks to Olaf the Mad
477: Scientist who actually implemented this without access to a MIPS
478: box, just from reading the architecture manual. And it worked out
479: of the box.
480: started a set of system includes, mainly so that I can use lcc and
481: my alpha-linux cross compiler (which is unable to cross-compile
482: glibc). diet libc can now be compiled without any include files
483: from a normal libc. The includes do declare more than diet libc
484: currently delivers and they are still far from complete for real
485: applications.
486: I will only add assembly versions that are smaller _and_ faster than
487: the C version. Larger routines are only accepted if they are called
488: very often and are substantially faster.
489: added i386 assembly strchr, which is smaller and faster than the old
490: version. It is, however, larger than the version contributed by
491: proton (thanks, anyway).
492: added i386 strlen (31% faster, 14% smaller)
493: "make t" will now create a map file called "mapfile".
494:
495: 0.6.3:
496: added sys_errlist, strerror and perror
497: added isblank
498: added atol
499:
500: 0.6.2:
501: mmap for ARM didn't compile. Thanks, Paul!
502:
503: 0.6.1:
504: split mmap into the architecture specific subdirectories.
505: getenv now copes with environ==NULL, thanks Paul Clifford.
506: Paul also contributed a smaller ARM startup code.
507:
508: 0.6:
509: strcat returned the wrong result. Thanks, Dietz Pröpper.
510: strtod now understands a negative exponent (oops, thanks Bertram Barth)
511: Port to arm-linux-gnu, but on the Netwinder I use for testing the
512: __dtostr does not work (I have no idea why!)
513: The MIPS port now uses (much smaller) non-PIC code. That means that
514: the applications you link against diet libc also have to be compiled
515: non-PIC. I suggest copying the CFLAGS from the diet libc Makefile.
516: Thanks to Ralf Bächle for helping me with this!
517: I made subdirectories for the architectures and use VPATH to override
518: VPATH so that make finds the source file automatically. That should
519: simplify the sources greatly.
520: Olaf Dreesen contributed Alpha support including setjmp and longjmp!
521: ARM and MIPS now also have setjmp and longjmp
522: "compile" and "load" are now make targets. Use them for djb programs.
523: added contrib/elftrunc.c which will remove unnecessary ELF headers.
524: Again, contributed from Olaf. Great work!
525:
526: 0.5.12:
527: printf also does signed numbers.
528: If you don't use atexit, dietlibc now does not link exit, only _exit.
529: *printf now correctly returns the number of bytes written.
530: Olaf contributed experimental sscanf and vsscanf implementations.
531: If passed NULL as buffer, snprintf will not write anything but still
532: return the number of bytes it would have written.
533: Initial MIPS port! (Oh, the agony!)
534: No setjmp and longjmp support yet! Please contribute!
535: I even implemented unified syscalls for MIPS. Still, MIPS code is
536: almost twice the size of SPARC code. If anyone knows why: please
537: tell me!
538:
539: 0.5.11:
540: I implemented new unified syscalls for x86, sparc and ppc, this time based
541: on .s files and not .c files, and I moved the syscalls into
542: subdirectores to clean the dietlibc sources up a little.
543: A binary consisting of printf("%s is %d\n","olaf",23) is now
544: 2864 bytes on sparc
545: 2488 bytes on intel
546: I kludgily implemented fprintf(stdout,... and fprintf(stderr,...
547: to make a few more applications work.
548: Olaf Dreesen also implemented some unified syscall stuff for x86.
549: He discovered that with our unified syscall interface it actually
550: costs <10 bytes total to make all system calls thread safe!
551: I implemented atexit() (can register up to 4 callbacks).
552: I implemented strtod and __dtostr (the opposite). Now we can add
553: floating point support to vsnprintf and sscanf!
554:
555: 0.5.10:
556: I actually saw that I can not only merge the errno handling code of
557: the system calls on x86, I can also merge the rest (including the
558: arguments) except for setting the system call number. All those
559: system calls are now just a jump to a unified system call handler.
560: I got rid of x86openclose again. The savings are substantial:
561: chown from embutils went from 7664 to 7184 bytes!
562: If I'd move the system call wrappers to assembly language, I could
563: even reduce the alignment (does not matter since it's just a jump
564: anyway) and get rid of the "ret" behind each jump (one byte per
565: system call!)
566:
567: 0.5.9:
568: added memchr, strpbrk, strstr, strtol, isspace (hehe)
569: fixed strdup
570: fixed return values for strcpy and strcat (thanks to Norbert Berzen)
571: Olaf Dreesen contributed a strtol and initial {sn|vsn|}printf implementation
572: (no signed integers, only strings and unsigned integers (but
573: supporting octal, hex and decimal). Thanks, Olaf! (by the way:
574: that code must be wonderful, I don't understand it at all *bg*)
575: Olaf's printf does understand padding like in "%08d" and "%8d" and
576: automatically pads pointers with '0'.
577: Rewrote the x86 start code, old: 22 instructions, new: 12 instructions.
578: Thanks to proton for inspiration on this.
579: The new x86 start code also does not reference exit any more, thus saving
580: 64 bytes for executables that don't call exit explicitly.
581: [insert maniacal laughter] EVERY BYTE COUNTS!1!! ;-)
582: Moved errno and environ to start.S, saving no byte binary size but
583: speeding up compilation and slightly shortening dietlibc.a ;-)
584: For x86: joined open and close into one assembler file, sharing the
585: errno handling. This is a feasibility test and it actually saves a
586: few bytes. I think I will reimplement the _syscall[1-6] macros on
587: all platforms now to share the errno handling code for them.
588:
589: 0.5.8:
590: fixed strchr to be able to look for 0.
591:
592: added _llseek, ftruncate, getpgid, getresgid, getresuid, getsid,
593: memccpy, memmove, mprotect, setregid, setresgid, setresuid, setreuid,
594: strncpy, swapon, truncate, strtok, strtok_r, strspn, strcspn (all
595: contributed by Olaf Dreesen)
596:
597: added execvp, getcwd
598:
599: fixed __xmknod
600:
601: Note: can it be that the ftw interface really is so broken that I
602: cannot implement it without having to implement some searching data
603: structure? I included an experimental ftw implementation that will
604: not follow symlinks.
605:
606: 0.5.7:
607: oops, if_nametoindex was broken!
608:
609: 0.5.6:
610: ported to ppc-linux.
611: fixed i386 sigsetjmp (I mistyped the function name)
612: included sigjmp.c
613:
614: 0.5.5:
615: added wait, sys_siglist, longjmp/setjmp/sigsetjmp for i386 and sparc
616: actually, it wasn't fork that wasn't working for sparc, it was pipe.
617: I fixed it now.
618: dietlibc/SPARC assumes -msupersparc (does not provide div, mul, etc)
619: fixed readdir to use getdents and not the intel inline asm
620:
621: 0.5.4:
622: ported to sparclinux (sparc32 only). Beware: does not work yet.
623: added raise, abort, readlink, strcat, geteuid, geteuid, wait3, access
624:
625: 0.5.3:
626: added tcsetattr and getenv to compile e3
627:
628: 0.5.2:
629: added vhangup, tcgetattr, isatty and memcmp for fgetty
630: (http://www.fefe.de/fgetty/)
631: added localtime from uC-libc.
632:
633: 0.5.1:
634: stat and friends actually work now. Yuck! Another case of
635: translation between kernel and userland. Why can't the kernel
636: people and the libc people simply agree on a standard?
637: removed many unnecessary includes to speed up compilation.
638: added -fomit-frame-pointer and i386 compilation target to reduce code size.
639: inlined socketcall to reduce code size.
640: "load" and "compile" are examples for djb code.
641:
642: 0.5:
643: Olaf Dreesen contributed a much smaller implementation of malloc and friends.
644: each object file is now treated with "strip -x -R .note -R .comment"
645: split each system call into a separate object file
646: added ntohs, htons, alarm, if_indextoname and if_nametoindex
647:
648: 0.4.1:
649: oops, the strchr implementation was wrong. Thanks Jens Laas!
650:
651: 0.4:
652: copied opendir and friends from uC-libc.
653: added getservent and getservby* in gerservent.c
654:
655: 0.3:
656: remove readdir system call
657: added getdents system call
658: added getpwnam/getpwuid implementation in getpwnam.c
659: added a few string functions (in str*.c)
660:
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