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