Annotation of dietlibc/CHANGES, revision 1.261
1.244 fefe 1: 0.16:
2: "diet -v" or "diet -Os" segfaulted without further arguments.
1.246 fefe 3: Andre found two very embarassing bugs in my four lines of md5 glue.
4: I need to get more sleep.
1.247 fefe 5: Thanks Ogrisegg found that ptrace does not work as documented and
6: provided a wrapper that emulates the glibc behaviour.
1.248 fefe 7: Dirk Engling saved 8 bytes and 4 cycles in the ARM clone()
8: fix ptrace.h for S/390 and ARM
9: provide a PORTING document so we don't lose track of which file need
10: to be touched to port the diet libc to a new platform.
1.249 fefe 11: remove a few warnings
12: provide a prototype for usleep.
1.250 fefe 13: make __dtostr work on ARM by using long instead of long long.
14: Idea by Dirk Engling.
1.251 fefe 15: fix an argument counting bug in *scanf (Thomas Ogrisegg)
1.252 fefe 16: Forgot an #endif in asm/sigcontext.h (Mike Castle)
1.253 fefe 17: Kurt Garloff sent in patches to
18: fix struct termios on non-x86 architectures
1.254 fefe 19: printf("%+05d\n",500) was broken (Raimar Falke told me, Olaf fixed it)
20: create libcompat.a (and move daemon to it)
1.255 fefe 21: add getdelim and getline
22: *printf now recognize 'z' integer flag (and ignore it)
1.256 olaf 23: Dirk Engling provided a strcpy.S for ARM.
1.257 olaf 24: Olaf: fixed *scanf familie. It hadn't wored with "long long".
1.258 fefe 25: Hans Lermen fixed i386/getenv.S
1.259 fefe 26: diet -Os no longer discards -fpic and -fno-pic
1.260 fefe 27: fix i386 rand/random to use correct RAND_MAX (thanks, Jaroslav
28: Macodiseas)
1.261 ! fefe 29: sys/ipc.h now includes sys/types.h
1.244 fefe 30:
1.224 fefe 31: 0.15:
1.225 fefe 32: vfork sucks. I reverted to the old behavior where vfork==fork.
1.226 fefe 33: fix bsearch (and remove i386 assembly bsearch, needs to be redone).
1.227 fefe 34: Thanks Ogrisegg sent a patch to make the PA-RISC unified syscall
35: thread-safe!
1.228 fefe 36: remove vfork and add alarm to dynamic syscalls.
37: fix diet-dyn to link in dyn_dstop.o and not dyn_stop.o.
1.229 fefe 38: The MD5 code generated unaligned accesses when passed an unaligned
39: pointer on little endian ARM and MIPS.
40: MIPS unified syscall didn't compile anymore.
41: Put up new mipsel target to cross compile for little endian mips.
42: The mips target will again explicitly set endianness to big endian.
43: Compiling natively on a MIPS box should not touch the endianness.
1.230 fefe 44: Duh, when we removed return0, we broke tzset when the time zone parser
45: was disabled. Uwe Ohse noticed this. Thanks!
46: Fix gethostbyname to match host names case insensitively in /etc/hosts.
47: Oops, this was reported 6 weeks ago but I overlooked the email.
48: Thanks, Denis Rachal!
1.231 fefe 49: vsnprintf's zero termination was broken.
1.233 fefe 50: Uwe Ohse found a few more bugs:
51: Remove WANT_BUGGY_GLIBC_STRSEP. The Linux man page is broken, glibc
52: does it correctly.
53: Make inet_aton use strtoul instead of strtol
54: fdopen would close the file descriptor if it could not malloc the
55: buffer.
56: strftime updates.
57: Make _FILE_OFFSET_BITS includes -Wundef clean
58: Andre found a typo in endian.h for big endian mips
1.234 fefe 59: Ryan told me that fmod was not included in libm. Oops.
1.235 fefe 60: strstr(whatever,"") returned NULL, not whatever. Found by a new test
61: suite entry for strstr that I wrote.
1.245 fefe 62: Thomas Ogrisegg suggested or sent patches for the following:
1.236 fefe 63: add <asm/sigcontext.h> for profiling support.
64: make strncpy a #define in string.h to save a few bytes.
1.241 fefe 65: an i386 assembler getenv implementation (roughly half the size)
66: add grantpt, ptsname, unlockpt
1.236 fefe 67: add a getenv test suite entry.
1.238 fefe 68: Andre contributed an ARM assembler md5 implementation and he fixed mmap
69: on ARM.
70: add glibc macro names in sys/reboot.h. Mentioned by Laurent G. Bercot
1.239 fefe 71: getservent_r did not parse lines without aliases. Thanks, Jaroslav
72: Macodiseas!
1.240 fefe 73: fix MIPS start code (argv[0] was always corrupt)
1.241 fefe 74: removed annoying -Wconversion gcc switch
1.242 fefe 75: add -v to diet.c and fix MIPS CFLAGS in diet. Thanks, Johannes Stezenbach
1.243 fefe 76: Kurt Garloff sent these diffs:
77: add fdatasync (and make it a pthread cancellation point)
78: numerous alpha issues, like using .quad instead of .long for
79: offsets, change strip to -strip in Makefile (so a failing strip does
80: not abort the make), try to be more friendly to the gcc 2.96 that
81: SuSE 7.1 AXP ships with.
1.224 fefe 82:
1.209 fefe 83: 0.14:
1.224 fefe 84: fix brk again (missing __brk, trivial oversight)
1.210 fefe 85: a new i386/atol.S that is 4 bytes smaller (and faster, too!). Thanks,
86: Thomas Ogrisegg!
1.211 fefe 87: Thomas also contributed a PA-RISC port including testandset, so
88: libpthread will work once we implement clone! Great work, Thomas.
1.212 fefe 89: made the fake locale more believable.
90: If you need gettext, use http://www.ca.postgresql.org/~petere/gettext.html
1.213 fefe 91: moved _exit into the unified syscall on x86.
1.214 fefe 92: Uwe Ohse found many more bugs:
93: getpass EINTR handling, ttyname, sysconf_cpus with SLASH_PROC_OK,
94: liblatin1 was more or less completely broken if you gave it chars as
95: arguments, not ints (signedness). execvp had a buffer overflow in
96: case a PATH element exceeded PATH_MAX, but it's not a security
97: problem since setuid programs need to set their path to some known
98: value anyway.
1.219 fefe 99: hasmntopt did not work with foo=bar style options
1.217 fefe 100: Uwe also improved ftw's stack usage.
1.214 fefe 101: Put movl instead of popl rationale in comment in i386/unified.S since
102: three people have suggested saving a few bytes with popl now ;)
1.215 fefe 103: I discovered __attribute__((malloc)) and started using it. For gcc 3,
104: it improves the optimizer when functions return malloced pointers.
1.216 fefe 105: Steven Rostedt pointed out that my setvbuf was broken with regard to
106: size==0 and sent a patch to fix it.
1.218 fefe 107: Thomas Ogrisegg made setenv smaller.
1.220 olaf 108: Olaf: implemented the parisc clone and an atomic testandset, modified the
109: libpthread to respect the parisc UPgrowing stack. still non functional,
110: because the unified syscall uses errno :(
1.221 fefe 111: tcgetospeed read from the wrong termios field. Thanks, Gunnar Ritter!
1.222 fefe 112: Fixed asprintf (relied on vsnprintf(NULL,...) to return length but
113: don't write anything which was no longer the case. It also
114: allocated one byte unnecessarily, which Uwe Ohse found.
1.223 fefe 115: Fix ttyname (readlink does not \0-terminate, forgot to do that).
1.209 fefe 116:
1.193 fefe 117: 0.13:
1.194 fefe 118: add readdir64 and automatic mapping if _FILE_OFFSET_BITS == 64
1.199 fefe 119: make diet not include the linker safeguard stuff when preprocessing
1.207 fefe 120: Olaf: port to S/390!
1.196 leitner 121: me: fix vfork (it was put into dietlibc.a twice)
1.197 leitner 122: res_query did not initialize last
1.199 fefe 123: diet (not diet-dyn, of course) now adds -static to the gcc command line
1.198 leitner 124: fixed fflush on input streams (tic from ncurses exposed this)
1.199 fefe 125: duh, there is an alarm system call, too, so we use it and not setitimer
1.200 fefe 126: fix comparison in gmtime_r that caused Jan 1 to be converted to Dec 32.
1.201 fefe 127: rewrote __dtostr (it also has one more argument now)
1.205 fefe 128: Thanks to Erik Troan for bringing these to my attention:
1.204 fefe 129: make putenv behave like glibc (putenv("HOME") == unsetenv("HOME"))
130: fix strncat for the case where n == 0 (security implications?)
131: fix bsearch (it didn't find the very last element in the array, same
132: bug in both the C and the i386 assembly version).
1.205 fefe 133: fixed FNM_PATHNAME in fnmatch
1.204 fefe 134: fix brk (the syscall was documented incorrectly in the Linux man page)
135: Thanks, Thomas Ogrisegg!
1.205 fefe 136: added negated character classes to fnmatch (not required by POSIX)
1.206 fefe 137: make the utmp routines open utmp read-only if read-write doesn't work.
1.208 fefe 138: remove syscalls.c directory, it is obsolete now with unified syscalls
1.193 fefe 139:
1.164 fefe 140: 0.12:
141: more contributions from Frank Klemm.
1.165 fefe 142: iconv can now do UCS-2, too.
1.167 fefe 143: Imported several x86 assembly routines from Wouter van Kleunen.
1.166 fefe 144: Lots of bug fixes, and several more i386 specific versions of common
145: routines to make them smaller.
1.168 fefe 146: add memmem (a GNU extension that looks useful)
1.170 fefe 147: several changes from Michal Ludvig: inttypes.h gets C99 macros,
1.168 fefe 148: add pivot_root syscall, %n for *scanf.
1.169 fefe 149: add adjtimex (thanks, Laurent BERCOT)
1.171 fefe 150: add Frank Klemm's optimized md5
1.172 fefe 151: add -Os option to diet (see diet.1).
1.173 fefe 152: several IPv6 constants and HZ were missing, thanks Johannes Kloos.
1.174 fefe 153: add 32-bit uid/gid syscalls.
1.175 fefe 154: add rand48 (thanks, Johannes Kloos)
1.176 fefe 155: fixed a lot of bugs in getopt* (thanks, Johannes)
1.177 fefe 156: add strxfrm and tweak limits.h. glib-1.3.8 now compiles without changes.
157: add a few more module syscalls. modutils-2.4.9 now compiles without changes.
158: fix gethostent alias list termination. Major oops.
1.178 fefe 159: add execle and two DNS constants (from Johannes Kloos).
1.179 fefe 160: opendir did not close-on-exec (thanks, Laurent Bercot).
1.180 fefe 161: DNS will now properly signal errors and set h_errno.
162: A few more cleanups (thanks, Andreas Jabs and Matthias Andree).
1.181 fefe 163: Added an uber-cool linker safeguard feature! Idea by Matthias Andree.
164: If you enable WANT_SAFEGUARD in dietfeatures.h, diet will include an
165: external reference to a symbol that is only in the diet libc. So,
166: when you accidentally link a diet libc compiled object file against
167: glibc, the linker will barf. This will bloat your object files, but
168: you can remove all the references with "strip -R .note" from
169: the binaries in the end (which you should do anyway).
1.182 fefe 170: fix ARM unified syscall (select did not work).
1.183 fefe 171: add getpwent_r ala glibc and replace getpwent
172: do the same for getgrent and getspent
173: remove entlib (new code is smaller)
1.184 fefe 174: rewrite getserv* to use parselib (and provide ..._r, too)
1.185 fefe 175: add getpwnam_r and getpwuid_r
1.186 fefe 176: rewrite getproto* to use parselib (and protive ..._r, too)
1.187 fefe 177: Olaf muddled with the dynamic linker. It's a clean-room
178: implementation in the sense that it once worked for Olaf in a clean
179: room ;)
1.188 fefe 180: add if_nameindex and if_freenameindex.
181: fixed arm unified syscalls to work with current binutils (; is no
182: longer a line separator but starts a comment, switched to .macro)
1.189 fefe 183: changed all st_[cma]time types to signed long so comparisons against
184: LONG_MIN will work correctly. (GNU tar does this)
1.190 fefe 185: fixed two bugs regarding ungetc.
186: add getusershell, setusershell, endusershell (for vs_ftpd)
187: add prctl, dirfd (also for vs_ftpd)
1.191 fefe 188: fixed strftime (was completely hosed)
1.192 fefe 189: added real make install target
1.164 fefe 190:
1.115 fefe 191: 0.11:
192: fix major oops in DNS routines (only with WANT_FULL_RESOLV_CONF enabled).
1.116 fefe 193: fix vsscanf bug (Thanks, David Chappell).
1.117 fefe 194: add floor, ceil and memchr prototypes.
195: add __builtin_expect and expect #defines for gcc versions below 3.0
1.118 fefe 196: cleaner errno vs __errno_location handling
197: add placeholder iconv (iconv_open will always return EINVAL)
198: try to remove kernel 2.4 header dependency in IPv6 sockaddr_in6
199: initialization of getaddrinfo.
1.119 fefe 200: fix vsnprintf %X (printed lower case)
1.120 fefe 201: I wrote a new getopt. It appears to actually work (it is POSIX
202: compliant, it does not sort argv like the GNU version) and is only
203: a little over 300 bytes on x86.
1.121 fefe 204: Guillaume Cottenceau just wrote me that strncat should be even more
205: broken than it already is: it should append n bytes AND THEN \0!
206: I wonder how many programmers have produces off-by-one errors here...
1.122 fefe 207: Fix regexec offset return. autoconf now believes that diet libc has
208: POSIX regular expressions.
1.123 fefe 209: Fix fnmatch (a/b/* matched a/b/c/d even if FNM_PATHNAME was set)
1.124 fefe 210: Fix regular expression match for x* when there is no x at all.
1.125 fefe 211: Fix memory leak in error case in gethostbyname(2|). Thanks, Dietz Pröpper.
1.126 fefe 212: Add %h to vsnprintf.
1.127 fefe 213: Add FAQ.
1.128 fefe 214: Make %h work for signed numbers and add %hh to vsnprintf.
215: initgroups ignored the group argument :-(
216: remove printf references and nested functions from glob.
1.129 fefe 217: added an errno in libpthread that will display a prominent linker
218: warning.
1.131 fefe 219: started getting rid of kernel headers. Big task! :-(
1.130 fefe 220: add res_mkquery. The diet libc can now compile and link mtr.
1.132 olaf 221: Olaf: added a lot of code in libdl (not yet complete), changed the
222: startup code to make it work with his libdl and ld.so (needs still work
223: too)
1.134 fefe 224: __dns_readstartfiles only took the first domain or search path.
225: Thanks, Anthony de Boer
1.133 olaf 226: Olaf: added clone and a new unified_syscall for PowerPC
227: also dynlinker is now available (i386 only at this time)
1.135 fefe 228: crufted together a stdarg.h implementation from the various gcc headers.
1.136 fefe 229: implement getopt_long (ugh, the GNU people need professional help)
1.137 fefe 230: fixed word delimiters in regex (they looked for space, i.e. "," did
231: not work as delimiter)
1.138 fefe 232: errno.h now declares sys_errlist and sys_nerr.
1.143 fefe 233: added mkdtemp.
1.142 fefe 234: Uwe Ohse reported all of the following bugs:
235: ttyname should return 0 if !isatty.
236: realpath returns NULL if "." cannot be opened
237: putenv erroneously accepted (and mishandled) entries without "=".
238: popen returned 255 instead of 127 if /bin/sh could not be run.
239: fgetc did not set the internal EOF indicator on EOF.
240: bsearch contained an assumption about integer arithmetic overflow
241: behavior.
242: system did not set SIGCHLD and thus contained a race.
243: popen did not set close-on-exec and could leak an fd on malloc error.
1.147 fefe 244: daemon did not check whether open returns an fd below 3
245: perror did not save errno.
1.144 olaf 246: Olaf: Peter Jones reported some problems with perror; strerror had the
247: same problem.
248: Peter also posted a patch to atexit/exit. With some modifications it is
249: now implemented.
1.145 fefe 250: Unbuffered stdio and ungetc can no longer be disabled. I will try to
251: implement part of it using ELF weak symbols.
1.146 fefe 252: Added minimal sysconf (tehe) from David Chappell.
1.148 fefe 253: Added overflow handling for strtoul and strtol.
1.149 fefe 254: Added WANT_ETC_HOSTS in dietfeatures.h and made gethostbyname/2 use
255: it before falling back to DNS if enabled.
1.150 fefe 256: Added a littie backwards compatibility cruft for gpm (man, do these
257: sources stink!)
1.151 fefe 258: Added openpty.
1.152 fefe 259: Squeeze a few bytes off the is* routines, courtesy of Peter Jones.
1.154 fefe 260: Fix fseek return value.
1.155 fefe 261: Add dirname and basename.
1.156 fefe 262: Add a few i386 math routines contributed by Frank Klemm.
1.157 fefe 263: Fixed getservent (did not allow _ and - in the aliases).
264: Thanks, Oden Eriksson
1.158 fefe 265: Added a float.h so configure believes we have ANSI header files.
266: Fix a lot more stdio bugs that Uwe Ohse pointed out.
1.162 fefe 267: Olaf: has added a new scanf and printf core that is suitable for all
1.159 olaf 268: scanf and printf function implementations
1.160 fefe 269: Imported a few more functions and optimizations from Frank Klemm (he
270: also rewrote dtostr to have more precision)
1.161 olaf 271: Olaf: checked in a new sig* function family (based on rt_sig*).
272: legacy <2.2 signal-handling doesn't work at the moment.
1.163 fefe 273: Made rudimentary iconv that can convert back and forth between
274: iso-8859-1, utf-8 and ucs-4 (for debugging).
275: Thanks to Markus Kuhn for the excellent utf-8(7)!
1.115 fefe 276:
1.74 fefe 277: 0.10:
278: update getpagesize.
279: add personality.
1.75 fefe 280: add "%*s" and "%*.*s" support to vsnprintf.
1.76 fefe 281: add putchar (apparently arm-linux-gcc will substitute printf("\n")
282: with putchar('\n') behind your back...?!
1.77 fefe 283: import include/scsi/ from glibc.
1.78 fefe 284: add iopl.
1.80 fefe 285: add execl and sigdelset prototypes.
286: add getopt_long stuff to getopt.h (may compile but won't link).
1.81 fefe 287: add RPC headers (no code yet).
1.82 fefe 288: add mlockall, munlockall
1.83 fefe 289: make "diet gcc foo.c" work.
290: added Sun RPC code and removed as many warnings as possible in a
291: heroic act of self-mutilation.
292: added getproto* and getdtablesize for the RPC cruft :-(
1.84 fefe 293: added getpass. mount from util-linux actually compiles now!
294: fix the sig*set routines. mount actually works now *bg*
295: fix fwrite dividing by zero when trying to fwrite n records of size 0.
1.85 fefe 296: added an initial regex implementation (3500 bytes!!!).
1.87 fefe 297: add llseek and lseek64 with optional lseek fall-back.
1.88 fefe 298: add res_init.
299: add asprintf (ugh, what an ugly function).
1.89 fefe 300: expanded arpa/nameser.h to include backwards compatibility defines
1.90 fefe 301: add ut_name alias to ut_host in struct utmp.
302: add inet_ntop, inet_pton, gethostbyname2.
1.92 fefe 303: add sysinfo, recvmsg, sendmsg.
1.93 fefe 304: add endmntent, getmntent, setmntent.
1.94 fefe 305: fix fnmatch (thanks, Guillaume Cottenceau!)
1.96 fefe 306: add setenv.
307: remove __restrict from mntent.h, add __restrict__ removal alias for
308: older gcc versions in sys/cdefs.h.
309: add rlim_t, sig_atomic_t declarations.
310: add sigsetjmp #define for __sigsetjmp (oops).
311: (Thanks to Chris Siebenmann for these three bug reports)
1.97 fefe 312: add a gruesome hack to printf floating point to accept %f and kludge
313: together support for %.2f. Don't look at the code, please!
1.98 fefe 314: fixed tcsetpgrp (oops, this is embarassing! Thanks, Chris Siebenmann)
1.99 fefe 315: imported fix for entlib by Jeff Garzik.
1.100 fefe 316: add glob implementation from Guillaume Cottenceau (Thanks!!)
317: add libdl fragments from Olaf (Yeah! One step closer to dynamic linking!)
1.101 fefe 318: add REG_ICASE and word start/end handling to my regular expressions.
319: my regular expressions now actually match substrings (i.e. "foobar" to "bar").
1.102 fefe 320: wrap getcwd to comply to man page (the syscall returns the number of
321: bytes, not the buffer)
322: add realpath.
1.103 fefe 323: fix vfprintf.
1.104 fefe 324: fix *scanf %s zero termination.
325: add abs, labs, llabs.
1.105 fefe 326: add <sys/io.h>, ioperm syscall.
327: add flock to <sys/file.h>
1.106 fefe 328: fixes to bsearch and the regular expressions.
1.107 fefe 329: add fake herror.
1.108 fefe 330: add scandir and alphasort.
1.109 fefe 331: add killpg
1.110 fefe 332: implemented a gross hack to make libpthread compile when
333: dietfeatures.h does not define WANT_THREAD_SAFE (it's empty then).
1.111 fefe 334: add getaddrinfo and freeaddrinfo (man, what a fucked up interface!)
1.112 fefe 335: fix sigsuspend (syscall had completely fscked up arguments!)
1.113 fefe 336: RLIM_INFINITY from the kernel is broken. Thanks to Chris Siebenmann
337: for sending a patch.
1.114 fefe 338: add getserv*.
339: add WANT_FULL_RESOLV_CONF so that the DNS routines use "domain" and
340: "search" from resolv.conf.
1.74 fefe 341:
1.73 fefe 342: 0.9:
1.65 fefe 343: fixed initgroups (oops)
1.66 fefe 344: Cleanup appending file open for stdio (thanks, James Antill)
345: imported vfprintf fix from James Antill.
1.67 fefe 346: add fnmatch
347: change index, rindex and bcmp as weak ELF symbols (were #defined before)
1.68 fefe 348: Olaf added character classes to *scanf.
1.69 fefe 349: Put object and library files into a separate directory (bin-$ARCH).
350: Add "cross" make target to make all architectures.
351: Add "diet" program and man page.
1.70 fefe 352: Add getgrnam, getgrgid
1.71 fefe 353: Add cfmakeraw (Thanks, Antonio Musumeci)
1.72 fefe 354: localtime won't call gettimeofday when the tzfile parser is used.
1.65 fefe 355:
1.64 fefe 356: 0.8:
1.34 fefe 357: vsnprintf(0,...) estimated the length of strings with a padding width
358: incorrectly.
1.35 fefe 359: new reboot() from Olaf.
1.36 fefe 360: added prototypes for getsockopt and setsockopt.
1.39 fefe 361: added experimental sem* and shm*
1.38 fefe 362: define EXIT_SUCCESS and EXIT_FAILURE
1.40 fefe 363: added setvbuf (only changes mode, not buffer)
1.41 fefe 364: added dietwarning.h (woohoo, linker warnings!) and used it to warn of
365: insecurity (system, sprintf) or bloat (printf and stdio).
1.42 fefe 366: added qsort() and bsearch(). Benchmark on 1000 random ints:
367: glibc: 679414 cycles qsort and 3352 cycles bsearch
368: diet libc: 300010 cycles qsort, 553 cycles bsearch
369: I have no idea why glibc is so slow.
1.43 fefe 370: added __isnan (references by libm.a from glibc).
371: added popen() and pclose(). Now the diet libc can link slsh (from
372: S-Lang!)
1.44 fefe 373: corrected usleep. It was more of an msleep until now.
1.45 fefe 374: corrected __dtostr (it looped when trying to format "0.0").
375: several fixes to stdio (thanks to S-Lang's excellent test suite!)
1.46 fefe 376: added ungetc (does it work?)
1.47 fefe 377: added inet_aton (yuck!)
1.50 fefe 378: added gethostbyname, gethostbyaddr, gethostbyname_r and gethostbyaddr_r
1.48 fefe 379: added h_errno and __h_errno_location
380: added inet_ntoa
1.49 fefe 381: added setpgrp and getpgrp, strsignal and execv (thanks, Olaf)
1.51 fefe 382: add bcopy, index, rindex macros
383: add isgraph and isxdigit
1.52 fefe 384: add strftime (ugh!!!)
1.53 olaf 385: Olaf fixed strftime, gmtime_r leap year bug.
1.54 fefe 386: Jeff Garzik contributed a spec file. I put it in contrib and hope
387: everbody knows what to do with it...
388: Olaf checked in a ton of libpthread stuff.
1.55 fefe 389: added mkstemp using /dev/urandom (harder to guess than getpid()).
1.56 fefe 390: add large file backwards compatibility support (so gzip will run on
391: kernel 2.2 and 2.0)
1.57 fefe 392: added shutdown
1.58 fefe 393: added nice
394: added pseudo-locale support for is* (they are now weak aliases,
395: isupper -> __isupper_ascii etc). So, for example, liblatin1 can
396: overwrite the default is* functions.
1.59 fefe 397: added liblatin1.a
1.60 fefe 398: added tzfile implementation (does it work for anyone else?)
1.61 fefe 399: added syslog(3) (thanks to Rene Müller!)
1.62 fefe 400: Jeff Garzik contributed getgr*, getpw* and getsp* in one tiny package.
401: Thanks!
1.63 fefe 402: merged duplicate code in execv and execvp into exec_lib.o
1.34 fefe 403:
1.21 fefe 404: 0.7.2:
405: added several prototypes to already implemented functions and
406: <sys/reboot.h>. Thanks for Abraham for pointing this out.
1.22 fefe 407: added prototypes for process group and dup syscalls. Thanks to
408: Abraham again. He also contributed an implementation for daemon(),
409: an ugly BSD hack. I decided to diversify the lib/ directory a
410: little and now created a libugly/ directory for stuff like system()
411: and daemon() ;-)
412: added libstdio and moved all that stdio crap from lib/ there. The
413: idea is to start separating now what we will separate for shared
414: libraries anyway.
1.26 fefe 415: optimized x86 unified-syscall by Olaf.
1.27 fefe 416: added limits.h, removed __ARCHBITS from endian.h (use __WORDSIZE from
417: limits.h instead)
418: added remove.c and enough cruft to limits.h to make it compile lzo,
419: lzop and bzip2.
1.28 fefe 420: added mktime, asctime_r, asctime and ctime (needed for gzip).
421: Someone will need to implement a reader for the glibc localtime file
1.31 fefe 422: format some day (man tzfile, ugh!) :-(
1.29 fefe 423: added unlink prototype to unistd.h.
424: added gmtime and gmtime_r.
1.31 fefe 425: fixed sparc unified syscall error handling (please upgrade!).
1.30 fefe 426: removed readdir glibc compatibility cruft.
1.31 fefe 427: removed stat glibc compatibility cruft.
1.32 fefe 428: oops, my fread was broken for pipes.
1.33 fefe 429: Olaf found a bug in pipe() for sparc, too.
1.21 fefe 430:
1.9 fefe 431: 0.7.1:
1.11 fefe 432: optimized away the static arrays from __ltostr and __lltostr.
433: optimized away the static arrays (and more!) from strtoul and strtoull.
434: added system (by Olaf).
1.12 fefe 435: added tolower and toupper
1.13 fefe 436: added getopt from Olaf (~600 bytes on x86!)
1.14 fefe 437: added clone for mips (by Olaf).
438: fixed longjmp and setjmp on sparc not to require glibc include files.
1.15 olaf 439: added pause for all (by Olaf).
1.17 fefe 440: added __attribute__ ((__const__)) to ctype.h
1.16 fefe 441: added isupper and islower.
442: added putc and putchar as macros.
1.17 fefe 443: added strcasecmp and strncasecmp (thanks to Abraham vd Merwe for
444: insightful discussions and patches I partially used for the last three)
1.18 fefe 445: added getpriority and setpriority (also by Abraham)
1.19 fefe 446: oops, I broke strtoul in a recent optimization attempt.
1.20 fefe 447: oi, setjmp and longjmp were broken on other platforms, too!
448: Thanks to Sébastien Côté for reporting this.
1.9 fefe 449:
450: 0.7:
1.6 olaf 451: clone support for i386,alpha,arm and sparc by Olaf.
1.1 cvs 452: Initial dynamic loading glue for i386, also by Olaf.
453: We don't have a dynamic loader yet, so this is not yet usable.
454: added readv, sigdelset, sigaltstack, sigfillset, sigismember, usleep,
455: vsprintf, writev, all by Olaf.
1.2 fefe 456: imported readdir fix from Guillaume. Mhh, can the kernel interface
457: really be this broken?
1.3 fefe 458: Found a kludgy way to detect whether the kernel includes define struct
459: stat64 (they also define STAT64_HAS_BROKEN_ST_INO). If this does
460: not work for you, please tell me!
1.4 fefe 461: Removed bogus __seek_types enum, it's a bunch of #defines now.
1.7 fefe 462: Fixed stdio line buffering. The code was already there but I forgot
463: to mark stdio and stdout as line buffered. This should really be
464: done dynamically using isatty, though.
1.8 fefe 465: Removed superfluous "if (1)" in execvp.c
1.1 cvs 466:
467: 0.6.14:
468: *scanf did not append the 0 byte for %s.
469: added creat and changed creat to call open directly instead of open64.
470: did for fread what 0.6.10 did for fwrite.
471: repaired buffered stdio a little (line buffering is still not
472: supported).
473: [All of these bugs have been reported by Guillaume. Thanks!]
474: added __pure__ to strchr and strrchr in <string.h>
475:
476: 0.6.13:
477: included COPYING to make clear that the diet libc is covered by the
478: GNU General Public License (and _not_ the LGPL). That means that
479: you need to obtain a license from me if you want to use the diet
480: libc in a proprietary program that you want to distribute.
481: The x86 unified syscall swapped arguments #4 and #5 and noone
482: noticed until now! Thanks to Guillaume Cottenceau for reporting
483: this!
484: The malloc had a subtle bug with small allocations that could cause
485: segfault. Guillaume reported it, Olaf fixed it.
486:
487: 0.6.12:
488: added assert, statfs and fstatfs
489: added include/net/if.h so fget compiles again.
490:
491: 0.6.11:
492: added putenv.
493:
494: 0.6.10:
495: fixed fwrite. It returned the number of bytes written, not the number
496: of records. Thanks to Albert D. Cahalan for pointing this out.
497: fixed fgets. It returned EOF on empty lines. Thanks, Erik Frey.
498: added brk and sbrk. harold@nb.com.sg made me do it.
499:
500: 0.6.9:
501: fixed execvp not to return on ENOENT
502: did for {open|read|close|seek|tell}dir what I did for stat before.
503: The glibc compatibility part is currently non-functional.
504: fixed white space handling in sscanf " (" would not match " (".
505: fixed printf to accept 'l' flag.
506: fixed getpwuid (ignored last line)
507:
508: 0.6.8:
509: Olaf contributed initial thread-safe syscalls for i386, alpha, sparc,
510: mips and arm. I did the one for ppc. They can be enabled in dietfeatures.h.
511: added strlcpy and strlcat from OpenBSD.
512: added stat64, fstat64 and lstat64.
513: added endian.h and made ending of strlen.c endianness-aware
514: added string routines size tweak to dietfeatures.h. Most of the
515: string routines have been unrolled. This is up to three times as
516: fast but creates up to three times larger code. Now you can disable
517: the unrolling.
518: added sendfile.
519: I also added pread. It works on x86 and sparc but not on ppc and mips.
520: I have no idea what's going on. strace disagrees with the kernel.
521: Can anyone help? I asked the Linux kernel mailing list for help, too.
522: added a few aliases of the type __libc_open for open. nm on
523: libpthreads.so indicates that we will need them.
524:
525: 0.6.7:
526: the sources now compile without warnings with -Wall.
527: printf now prints "(null)" when %s is passed NULL. This can be
528: removed with WANT_NULL_PRINTF in dietfeatures.h
529: added vfprintf, execl, ttyname.
530: stat, lstat and fstat are now #defined to __dietstat, __dietlstat and
531: __dietfstat so they can use the normal kernel struct stat.
532: stat, lstat and fstat are now C wrappers that convert to the glibc
533: struct stat. So we can avoid that overhead for programs that use
534: dietlibc headers.
535:
536: 0.6.6:
537: changed the Makefiles so you can now set CFLAGS on the command line
538: added memccmp (analogous to memccpy) and strncmp.
539: Olaf fixed another bug in the sparc unified syscall.
540: Paul Clifford contributed a C version of his strlen.S that is much
541: more efficient than the previous strlen on all platforms! It also
542: looks like technology from Roswell. ;-}
543: added a "real" stdio. Well, almost. Please contribute!
544: added dietfeatures.h so you can remove features you don't need.
545: removed debug code from vsnprintf that changed \0 to ' ' (argh!).
546: stdio now works with simple programs and minigzip from libz.
547: stdio uses some major trickery to avoid linking the stdio, stderr and
548: stdout (and reserving space for them) when they are not used.
549:
550: 0.6.5:
551: Red Plait <redplait@ixcelerator.com> found several bugs in diet libc,
552: most of them bugs in the new header files, but also missing sigset
553: functions.
554: Paul Clifford contributed an assembly strlen.S for ARM and fixed
555: several bugs.
556: Fixed ppc/setjmp and mips/pipe.
557: Olaf contributed a new sparc unified syscall.
558:
559: 0.6.4:
560: declared is* static inline in getservent.
561: added assert_fail, strtoul, isalpha, isdigit, isalnum, isascii.
562: changed strlen to return 0 when passed NULL.
563: new, much smaller unified syscall for MIPS. Thanks to Olaf the Mad
564: Scientist who actually implemented this without access to a MIPS
565: box, just from reading the architecture manual. And it worked out
566: of the box.
567: started a set of system includes, mainly so that I can use lcc and
568: my alpha-linux cross compiler (which is unable to cross-compile
569: glibc). diet libc can now be compiled without any include files
570: from a normal libc. The includes do declare more than diet libc
571: currently delivers and they are still far from complete for real
572: applications.
573: I will only add assembly versions that are smaller _and_ faster than
574: the C version. Larger routines are only accepted if they are called
575: very often and are substantially faster.
576: added i386 assembly strchr, which is smaller and faster than the old
577: version. It is, however, larger than the version contributed by
578: proton (thanks, anyway).
579: added i386 strlen (31% faster, 14% smaller)
580: "make t" will now create a map file called "mapfile".
581:
582: 0.6.3:
583: added sys_errlist, strerror and perror
584: added isblank
585: added atol
586:
587: 0.6.2:
588: mmap for ARM didn't compile. Thanks, Paul!
589:
590: 0.6.1:
591: split mmap into the architecture specific subdirectories.
592: getenv now copes with environ==NULL, thanks Paul Clifford.
593: Paul also contributed a smaller ARM startup code.
594:
595: 0.6:
596: strcat returned the wrong result. Thanks, Dietz Pröpper.
597: strtod now understands a negative exponent (oops, thanks Bertram Barth)
598: Port to arm-linux-gnu, but on the Netwinder I use for testing the
599: __dtostr does not work (I have no idea why!)
600: The MIPS port now uses (much smaller) non-PIC code. That means that
601: the applications you link against diet libc also have to be compiled
602: non-PIC. I suggest copying the CFLAGS from the diet libc Makefile.
603: Thanks to Ralf Bächle for helping me with this!
604: I made subdirectories for the architectures and use VPATH to override
605: VPATH so that make finds the source file automatically. That should
606: simplify the sources greatly.
607: Olaf Dreesen contributed Alpha support including setjmp and longjmp!
608: ARM and MIPS now also have setjmp and longjmp
609: "compile" and "load" are now make targets. Use them for djb programs.
610: added contrib/elftrunc.c which will remove unnecessary ELF headers.
611: Again, contributed from Olaf. Great work!
612:
613: 0.5.12:
614: printf also does signed numbers.
615: If you don't use atexit, dietlibc now does not link exit, only _exit.
616: *printf now correctly returns the number of bytes written.
617: Olaf contributed experimental sscanf and vsscanf implementations.
618: If passed NULL as buffer, snprintf will not write anything but still
619: return the number of bytes it would have written.
620: Initial MIPS port! (Oh, the agony!)
621: No setjmp and longjmp support yet! Please contribute!
622: I even implemented unified syscalls for MIPS. Still, MIPS code is
623: almost twice the size of SPARC code. If anyone knows why: please
624: tell me!
625:
626: 0.5.11:
627: I implemented new unified syscalls for x86, sparc and ppc, this time based
628: on .s files and not .c files, and I moved the syscalls into
629: subdirectores to clean the dietlibc sources up a little.
630: A binary consisting of printf("%s is %d\n","olaf",23) is now
631: 2864 bytes on sparc
632: 2488 bytes on intel
633: I kludgily implemented fprintf(stdout,... and fprintf(stderr,...
634: to make a few more applications work.
635: Olaf Dreesen also implemented some unified syscall stuff for x86.
636: He discovered that with our unified syscall interface it actually
637: costs <10 bytes total to make all system calls thread safe!
638: I implemented atexit() (can register up to 4 callbacks).
639: I implemented strtod and __dtostr (the opposite). Now we can add
640: floating point support to vsnprintf and sscanf!
641:
642: 0.5.10:
643: I actually saw that I can not only merge the errno handling code of
644: the system calls on x86, I can also merge the rest (including the
645: arguments) except for setting the system call number. All those
646: system calls are now just a jump to a unified system call handler.
647: I got rid of x86openclose again. The savings are substantial:
648: chown from embutils went from 7664 to 7184 bytes!
649: If I'd move the system call wrappers to assembly language, I could
650: even reduce the alignment (does not matter since it's just a jump
651: anyway) and get rid of the "ret" behind each jump (one byte per
652: system call!)
653:
654: 0.5.9:
655: added memchr, strpbrk, strstr, strtol, isspace (hehe)
656: fixed strdup
657: fixed return values for strcpy and strcat (thanks to Norbert Berzen)
658: Olaf Dreesen contributed a strtol and initial {sn|vsn|}printf implementation
659: (no signed integers, only strings and unsigned integers (but
660: supporting octal, hex and decimal). Thanks, Olaf! (by the way:
661: that code must be wonderful, I don't understand it at all *bg*)
662: Olaf's printf does understand padding like in "%08d" and "%8d" and
663: automatically pads pointers with '0'.
664: Rewrote the x86 start code, old: 22 instructions, new: 12 instructions.
665: Thanks to proton for inspiration on this.
666: The new x86 start code also does not reference exit any more, thus saving
667: 64 bytes for executables that don't call exit explicitly.
668: [insert maniacal laughter] EVERY BYTE COUNTS!1!! ;-)
669: Moved errno and environ to start.S, saving no byte binary size but
670: speeding up compilation and slightly shortening dietlibc.a ;-)
671: For x86: joined open and close into one assembler file, sharing the
672: errno handling. This is a feasibility test and it actually saves a
673: few bytes. I think I will reimplement the _syscall[1-6] macros on
674: all platforms now to share the errno handling code for them.
675:
676: 0.5.8:
677: fixed strchr to be able to look for 0.
678:
679: added _llseek, ftruncate, getpgid, getresgid, getresuid, getsid,
680: memccpy, memmove, mprotect, setregid, setresgid, setresuid, setreuid,
681: strncpy, swapon, truncate, strtok, strtok_r, strspn, strcspn (all
682: contributed by Olaf Dreesen)
683:
684: added execvp, getcwd
685:
686: fixed __xmknod
687:
688: Note: can it be that the ftw interface really is so broken that I
689: cannot implement it without having to implement some searching data
690: structure? I included an experimental ftw implementation that will
691: not follow symlinks.
692:
693: 0.5.7:
694: oops, if_nametoindex was broken!
695:
696: 0.5.6:
697: ported to ppc-linux.
698: fixed i386 sigsetjmp (I mistyped the function name)
699: included sigjmp.c
700:
701: 0.5.5:
702: added wait, sys_siglist, longjmp/setjmp/sigsetjmp for i386 and sparc
703: actually, it wasn't fork that wasn't working for sparc, it was pipe.
704: I fixed it now.
705: dietlibc/SPARC assumes -msupersparc (does not provide div, mul, etc)
706: fixed readdir to use getdents and not the intel inline asm
707:
708: 0.5.4:
709: ported to sparclinux (sparc32 only). Beware: does not work yet.
710: added raise, abort, readlink, strcat, geteuid, geteuid, wait3, access
711:
712: 0.5.3:
713: added tcsetattr and getenv to compile e3
714:
715: 0.5.2:
716: added vhangup, tcgetattr, isatty and memcmp for fgetty
717: (http://www.fefe.de/fgetty/)
718: added localtime from uC-libc.
719:
720: 0.5.1:
721: stat and friends actually work now. Yuck! Another case of
722: translation between kernel and userland. Why can't the kernel
723: people and the libc people simply agree on a standard?
724: removed many unnecessary includes to speed up compilation.
725: added -fomit-frame-pointer and i386 compilation target to reduce code size.
726: inlined socketcall to reduce code size.
727: "load" and "compile" are examples for djb code.
728:
729: 0.5:
730: Olaf Dreesen contributed a much smaller implementation of malloc and friends.
731: each object file is now treated with "strip -x -R .note -R .comment"
732: split each system call into a separate object file
733: added ntohs, htons, alarm, if_indextoname and if_nametoindex
734:
735: 0.4.1:
736: oops, the strchr implementation was wrong. Thanks Jens Laas!
737:
738: 0.4:
739: copied opendir and friends from uC-libc.
740: added getservent and getservby* in gerservent.c
741:
742: 0.3:
743: remove readdir system call
744: added getdents system call
745: added getpwnam/getpwuid implementation in getpwnam.c
746: added a few string functions (in str*.c)
747:
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