Annotation of dietlibc/CHANGES, revision 1.392
1.381 fefe 1: 0.23:
2: update sys/soundcard.h
3: various x86_64 fixes (Gwenole Beauchesne)
1.382 fefe 4: fix assert for 64-bit platforms (Gwenole Beauchesne)
1.383 fefe 5: remove many warning from test suite (Gwenole Beauchesne)
1.384 fefe 6: hopefully fix resolver (again, Gwenole)
1.385 fefe 7: fix floorl typo (Norbert Wolff)
1.386 fefe 8: add more BSD brokenness to time.h
9: forward poll.h to sys/poll.h
1.387 fefe 10: make DNS socket close-on-exec (Felix J. Ogris)
1.388 fefe 11: add cuserid to libcompat (Andreas Krennmair)
1.389 fefe 12: add ctermid and ftok to libcompat (those are _really_ ugly)
1.390 fefe 13: copy some RPC bugfix cruft from glibc
14: warning: I don't use rpc or xdr, I don't actually understand or have
15: a way to test this. Maybe I should remove this cruft from the
16: diet libc...?
1.391 leitner 17: make declaration of writev and readv match susv3
1.392 ! leitner 18: add finite (Andreas Krennmair)
1.381 fefe 19:
1.341 fefe 20: 0.22:
1.342 fefe 21: fix i386 libm
1.343 fefe 22: fix netinet/ip_icmp.h (Rui Prior)
1.344 fefe 23: make strings.h susv3 compliant (Gunnar Ritter)
1.345 fefe 24: remove stdio dependence in abort
1.346 fefe 25: fix truncate64, ftruncate64 (Luc Van Oostenryck and Yuri Kozlov)
1.347 fefe 26: fix and improve erand48() (Luc Van Oostenryck)
1.348 fefe 27: fix realpath for non-existant directories (Gergely Nagy and Gerrit Pape)
1.349 fefe 28: fix DNS timeout and IPv6 socket reuse
1.350 fefe 29: strtoul now accepts "-1" as well (Thomas Ogrisegg)
30: add i386 strcasecmp and __ltostr (Thomas Ogrisegg)
1.351 fefe 31: add killpg prototype (Luc Van Oostenryck)
32: remove some compiler warnings (Luc Van Oostenryck)
33: better rand() from Knuth's TAOCP (Luc Van Oostenryck)
1.352 fefe 34: fix unified x86_64 unified syscall 64-bit return value issue (Gwenole)
1.353 fefe 35: the getdents64 emulation was broken and repairing it opened a can of
36: worms. So I ripped it out. I also changed the readdir64 emulation
37: to work if there is no getdents64.
1.354 fefe 38: fix ia64 start.S (Thanks to Volker Birk for an account on his ia64 box)
1.355 fefe 39: many ia64 fixes (waitpid, nice, fork, vfork, time, utime ...)
1.356 fefe 40: More fixes from Gwenole (printf %p only printed the last 32 bits, I
41: botched the getdents64 #ifdefs, we violated the x86_64 ABI)
1.357 fefe 42: change signal() to do as glibc does
1.358 fefe 43: remove a few more warnings
1.359 fefe 44: add new 2.5 syscall #defines
45: add epoll_create, epoll_ctl and epoll_wait
1.360 fefe 46: the new x86 syscall numbers exceed 255, breaking our %al optimization
47: I worked around it with conditional assembly in cpp macros. Ugh.
1.361 fefe 48: more MIPS fixes (the stoned MIPS ABI for restartable syscalls expects
49: the instruction before the syscall to be a load immediate)
50: fix fread() from a pipe (oops, tried to lseek)
1.362 fefe 51: #define _POSIX_VDISABLE in termios.h (Laurent Bercot)
1.363 fefe 52: two *printf fixes (Gernot Tenchio)
1.364 fefe 53: add nan and +-inf handling in __dtostr
1.365 fefe 54: add _SC_NGROUPS_MAX support to sysconf (Felix J. Ogris)
1.366 fefe 55: make assert() use expect(), slight optimization
1.367 fefe 56: add i386 vfork (Thomas Ogrisegg)
1.368 fefe 57: fix SA_NODEFER on sparc (Gerrit Pape, Thomas Bader)
1.369 fefe 58: fix sin, cos and __dtostr (Gernot Tenchio)
1.370 fefe 59: add /dev/epoll ioctl constants to sys/ioctl.h
1.371 fefe 60: add linux/eventpoll.h for /dev/epoll
1.372 fefe 61: fix lseek64 on 64-bit architectures
1.373 olaf 62: Olaf: fix x86_64 start-code (we have reg-args)
63: fixing some broken macros in sparc32-code (.udiv,.urem)
64: adding strndup (GNU Extension)
1.374 fefe 65: fix glob strncpy (R.L. Horn)
1.375 fefe 66: fix regfree (Uwe Ohse)
1.376 fefe 67: fix puts in full stdio mode (would omit \n)
1.377 fefe 68: fix wrong types on powerpc, broke *stat (Gerrit Pape)
1.378 fefe 69: allow more than 64k in i386 memchr (Karsten Scheibler)
1.379 fefe 70: make strftime work it WANT_TZFILE_PARSER is not set (Gwenole Beauchesne)
1.380 fefe 71: build parisc on parisc64, change libgcc link order on sparc (Gerrit Pape)
1.341 fefe 72:
1.326 fefe 73: 0.21:
1.327 fefe 74: use gcc's size_t, ptrdiff_t and wchar_t types (Olaf)
75: use -G 8 on MIPS to reduce code size (Johannes Stezenbach)
1.328 fefe 76: add munlock (Jens Låås)
1.330 fefe 77: argh, atexit fell victim to bit rot (or maybe Olaf)
1.331 fefe 78: add WANT_INET_ADDR_DNS to make gethostbyname not look up IP numbers
79: but use them to fill in the struct hostent directly.
1.332 olaf 80: signal is now a correct signal (Olaf)
1.333 fefe 81: read optimizer cflags for diet -Os gcc from ~/.diet/gcc, overriding
82: the built-in defaults.
1.334 fefe 83: add file "SECURITY". I will document design tradeoffs that have
84: security implications there.
1.335 fefe 85: fixed regex LINEEND condition
1.336 fefe 86: add .size directive to i386 syscalls
1.337 fefe 87: shove a few more bytes off the i386 socket calls
1.339 fefe 88: setjmp, longjmp and clone for x86_64 are now implemented but not tested (Olaf)
1.340 fefe 89: fix sparc signals
1.326 fefe 90:
1.319 fefe 91: 0.20:
1.325 fefe 92: calloc was botched
1.320 fefe 93: umount and stime for x86_64 (Gwenole Beauchesne)
1.321 fefe 94: some malloc fixes for very big numbers (Enrico Scholz, me)
1.322 fefe 95: x86_64 unified syscall did not preserve rbx violating ABI (Gwenole)
1.323 fefe 96: realpath fix if path did not contain a slash (Gwenole)
1.324 fefe 97: add ucontext
1.329 fefe 98: add asm/statfs.h to work around people using <linux/fs.h>
1.319 fefe 99:
1.308 fefe 100: 0.19:
101: current gcc cvs makes __thread a keyword (Eric Troan)
1.316 fefe 102: be more strict regarding hostile DNS packets (me)
1.312 fefe 103: fix ia64 compile problems (Gerrit Pape)
1.311 fefe 104: make killpg a function and not a macro (broke bash 2.05b)
1.313 fefe 105: fix ia64 start code and unified syscall (me)
1.314 fefe 106: add sparc/strlen.S from Thomas Ogrisegg
107: add more space to ARM __jmp_buf in setjmp.h (Andre)
1.315 fefe 108: fix libcompat/syscall.S (did't compile on arm)
1.316 fefe 109: add integer overflow fix in xdr_array after bugtraq advisory (me)
1.317 fefe 110: fix x86_64 socket calls and mmap (and some more) (Gwenole Beauchesne)
111: add calloc integer overflow fix after RUS-CERT advisory (me)
1.318 fefe 112: add fread and fwrite integer overflow fix (me)
1.308 fefe 113:
1.281 fefe 114: 0.18:
1.282 fefe 115: add stpcpy (from Thomas Ogrisegg)
116: check in mktime fix (from Luc Van Oostenryck)
1.283 fefe 117: add libm2.s from contrib to i386 (oops, how long has it been sitting
118: there?)
1.284 fefe 119: add truncate64 and ftruncate64 and prototype for truncate (only had ftruncate)
1.285 fefe 120: Michal Ludvig ported the diet libc to the x86_64 architecture (the
121: upcoming AMD Hammer chips!). You can't even buy the chips yet and
122: the diet libc already supports it! Amazing ;-)
123: Michal's patch also fixed several of the outstanding warnings. Thanks!
1.286 fefe 124: Andre sent a patch to add ARM profiling. He says it does not work
125: yet, but it's a start.
1.287 fefe 126: added getdents64 backwards compatibility and include it in large file
127: support #defines
1.288 fefe 128: perror now checks if the message is NULL like glibc (Thomas Ogrisegg)
1.289 fefe 129: ftell did not take ungetc into account (Kevin Ryde through Debian).
1.290 fefe 130: Thomas Ogrisegg sent a port to IA64!
1.291 fefe 131: sigaddset, sigdelset and setismember segfaulted for signal 0 (Gunnar Ritter)
1.292 fefe 132: Enrico Scholz reported several bugs in the header files.
133: change __malloc__ to __attribute_malloc__
1.293 fefe 134: add pa-risc socketcall (but see TODO) (Felix J. Ogris)
1.294 fefe 135: fix *rand48 initialization (Kevin Ryde)
136: fnmatch infinite loop fix (Piotr Esden-Tempski)
1.295 fefe 137: make signal() into a sigaction wrapper function
1.296 fefe 138: add memrchr (Emil)
1.297 fefe 139: remove __attribute__((const)) from getpid() (Yuri Kozlov)
1.298 fefe 140: make getserv* also work if proto is NULL (Jens Låås)
1.299 olaf 141: now clone on parisc works (Thomas Ogrisegg)
1.300 fefe 142: getopt* fix from Thomas Walpuski
1.301 fefe 143: add syscall() to libcompat (Thomas Ogrisegg)
1.302 fefe 144: fix strncpy and strrchr i386 assembly versions for dynamic linking
1.310 fefe 145: (John K. Hohm)
1.302 fefe 146: allow short option grouping in getopt* (Ralf Wildenhues)
1.303 fefe 147: make the DNS resolver IPv6 transport capable (WANT_IPV6_DNS)
1.304 fefe 148: mention -v in diet.1 (Bryan Henderson)
1.305 fefe 149: auto-detect gcc 3 on i386 and remove compiler option warnings
1.306 fefe 150: putenv tweak (Thomas Ogrisegg)
151: add missing socket syscalls for PA-RISC and IA64 (Thomas Ogrisegg)
152: add cpio.h and tar.h (Thomas Ogrisegg)
153: change opendir/readdir/closedir from malloc to mmap (Thomas Ogrisegg)
1.307 fefe 154: cleanups from Florian LaRoche
1.281 fefe 155:
1.264 fefe 156: 0.17:
1.265 fefe 157: fix several bugs in getservent_r
1.266 fefe 158: Gunnar Ritter reported the following:
159: moved tcgetpgrp and tcsetpgrp to unistd.h
160: adjusted lstat->lstat64 #define to make it work with function pointers
161: move __dietlibc__ #define from features.h to diet
1.267 fefe 162: Thomas Ogrisegg sent x86 memccpy and strncpy routines and introduced
163: an dietfeatures.h #define WANT_FULL_POSIX_COMPAT
1.268 fefe 164: Thomas also sent me profiling support (so far only on x86, but
165: profiling/PORTING describes what needs to be done for other
166: architectures)!
1.272 fefe 167: add contrib/dprof.c, also from Thomas.
1.269 fefe 168: Andreas Krennmair sent a patch to add the BSD regex interface to
169: libcompat
1.271 fefe 170: Andre noticed that __dtostr never sets first to false. Oops!
1.274 fefe 171: Andre has provided a largely untested patch that seems to fix the problem.
1.275 fefe 172: Igor Gilitschenski sent a patch for the "%8.7lx" issue.
1.276 fefe 173: abort did not flush all stdio streams
1.277 fefe 174: fix some nasty regular expression bugs
175: write a stupid malloc checker (contrib/debug-realloc.c) to help me
176: debug my regular expressions. Please read contrib/debug-realloc.txt
1.278 fefe 177: our i386 memchr,memcmp were broken for the count=0 case
1.279 fefe 178: fix DNS domain search
1.280 fefe 179: i386 memccpy exchanged esi and edi :-( I should do more checks before
180: accepting external code...
1.264 fefe 181:
1.244 fefe 182: 0.16:
183: "diet -v" or "diet -Os" segfaulted without further arguments.
1.246 fefe 184: Andre found two very embarassing bugs in my four lines of md5 glue.
185: I need to get more sleep.
1.247 fefe 186: Thanks Ogrisegg found that ptrace does not work as documented and
187: provided a wrapper that emulates the glibc behaviour.
1.248 fefe 188: Dirk Engling saved 8 bytes and 4 cycles in the ARM clone()
189: fix ptrace.h for S/390 and ARM
190: provide a PORTING document so we don't lose track of which file need
191: to be touched to port the diet libc to a new platform.
1.249 fefe 192: remove a few warnings
193: provide a prototype for usleep.
1.250 fefe 194: make __dtostr work on ARM by using long instead of long long.
195: Idea by Dirk Engling.
1.251 fefe 196: fix an argument counting bug in *scanf (Thomas Ogrisegg)
1.252 fefe 197: Forgot an #endif in asm/sigcontext.h (Mike Castle)
1.253 fefe 198: Kurt Garloff sent in patches to
199: fix struct termios on non-x86 architectures
1.254 fefe 200: printf("%+05d\n",500) was broken (Raimar Falke told me, Olaf fixed it)
201: create libcompat.a (and move daemon to it)
1.255 fefe 202: add getdelim and getline
203: *printf now recognize 'z' integer flag (and ignore it)
1.256 olaf 204: Dirk Engling provided a strcpy.S for ARM.
1.257 olaf 205: Olaf: fixed *scanf familie. It hadn't wored with "long long".
1.258 fefe 206: Hans Lermen fixed i386/getenv.S
1.259 fefe 207: diet -Os no longer discards -fpic and -fno-pic
1.260 fefe 208: fix i386 rand/random to use correct RAND_MAX (thanks, Jaroslav
209: Macodiseas)
1.261 fefe 210: sys/ipc.h now includes sys/types.h
1.262 olaf 211: Olaf: started to make the sparc64 port
1.263 fefe 212: scandir should not sort if compar() is NULL (reported by Andrea Marrosu)
1.244 fefe 213:
1.224 fefe 214: 0.15:
1.225 fefe 215: vfork sucks. I reverted to the old behavior where vfork==fork.
1.226 fefe 216: fix bsearch (and remove i386 assembly bsearch, needs to be redone).
1.227 fefe 217: Thanks Ogrisegg sent a patch to make the PA-RISC unified syscall
218: thread-safe!
1.228 fefe 219: remove vfork and add alarm to dynamic syscalls.
220: fix diet-dyn to link in dyn_dstop.o and not dyn_stop.o.
1.229 fefe 221: The MD5 code generated unaligned accesses when passed an unaligned
222: pointer on little endian ARM and MIPS.
223: MIPS unified syscall didn't compile anymore.
224: Put up new mipsel target to cross compile for little endian mips.
225: The mips target will again explicitly set endianness to big endian.
226: Compiling natively on a MIPS box should not touch the endianness.
1.230 fefe 227: Duh, when we removed return0, we broke tzset when the time zone parser
228: was disabled. Uwe Ohse noticed this. Thanks!
229: Fix gethostbyname to match host names case insensitively in /etc/hosts.
230: Oops, this was reported 6 weeks ago but I overlooked the email.
231: Thanks, Denis Rachal!
1.231 fefe 232: vsnprintf's zero termination was broken.
1.233 fefe 233: Uwe Ohse found a few more bugs:
234: Remove WANT_BUGGY_GLIBC_STRSEP. The Linux man page is broken, glibc
235: does it correctly.
236: Make inet_aton use strtoul instead of strtol
237: fdopen would close the file descriptor if it could not malloc the
238: buffer.
239: strftime updates.
240: Make _FILE_OFFSET_BITS includes -Wundef clean
241: Andre found a typo in endian.h for big endian mips
1.234 fefe 242: Ryan told me that fmod was not included in libm. Oops.
1.235 fefe 243: strstr(whatever,"") returned NULL, not whatever. Found by a new test
244: suite entry for strstr that I wrote.
1.245 fefe 245: Thomas Ogrisegg suggested or sent patches for the following:
1.236 fefe 246: add <asm/sigcontext.h> for profiling support.
247: make strncpy a #define in string.h to save a few bytes.
1.241 fefe 248: an i386 assembler getenv implementation (roughly half the size)
249: add grantpt, ptsname, unlockpt
1.236 fefe 250: add a getenv test suite entry.
1.238 fefe 251: Andre contributed an ARM assembler md5 implementation and he fixed mmap
252: on ARM.
253: add glibc macro names in sys/reboot.h. Mentioned by Laurent G. Bercot
1.239 fefe 254: getservent_r did not parse lines without aliases. Thanks, Jaroslav
255: Macodiseas!
1.240 fefe 256: fix MIPS start code (argv[0] was always corrupt)
1.241 fefe 257: removed annoying -Wconversion gcc switch
1.242 fefe 258: add -v to diet.c and fix MIPS CFLAGS in diet. Thanks, Johannes Stezenbach
1.243 fefe 259: Kurt Garloff sent these diffs:
260: add fdatasync (and make it a pthread cancellation point)
261: numerous alpha issues, like using .quad instead of .long for
262: offsets, change strip to -strip in Makefile (so a failing strip does
263: not abort the make), try to be more friendly to the gcc 2.96 that
264: SuSE 7.1 AXP ships with.
1.224 fefe 265:
1.209 fefe 266: 0.14:
1.224 fefe 267: fix brk again (missing __brk, trivial oversight)
1.210 fefe 268: a new i386/atol.S that is 4 bytes smaller (and faster, too!). Thanks,
269: Thomas Ogrisegg!
1.211 fefe 270: Thomas also contributed a PA-RISC port including testandset, so
271: libpthread will work once we implement clone! Great work, Thomas.
1.212 fefe 272: made the fake locale more believable.
273: If you need gettext, use http://www.ca.postgresql.org/~petere/gettext.html
1.213 fefe 274: moved _exit into the unified syscall on x86.
1.214 fefe 275: Uwe Ohse found many more bugs:
276: getpass EINTR handling, ttyname, sysconf_cpus with SLASH_PROC_OK,
277: liblatin1 was more or less completely broken if you gave it chars as
278: arguments, not ints (signedness). execvp had a buffer overflow in
279: case a PATH element exceeded PATH_MAX, but it's not a security
280: problem since setuid programs need to set their path to some known
281: value anyway.
1.219 fefe 282: hasmntopt did not work with foo=bar style options
1.217 fefe 283: Uwe also improved ftw's stack usage.
1.214 fefe 284: Put movl instead of popl rationale in comment in i386/unified.S since
285: three people have suggested saving a few bytes with popl now ;)
1.215 fefe 286: I discovered __attribute__((malloc)) and started using it. For gcc 3,
287: it improves the optimizer when functions return malloced pointers.
1.216 fefe 288: Steven Rostedt pointed out that my setvbuf was broken with regard to
289: size==0 and sent a patch to fix it.
1.218 fefe 290: Thomas Ogrisegg made setenv smaller.
1.220 olaf 291: Olaf: implemented the parisc clone and an atomic testandset, modified the
292: libpthread to respect the parisc UPgrowing stack. still non functional,
293: because the unified syscall uses errno :(
1.221 fefe 294: tcgetospeed read from the wrong termios field. Thanks, Gunnar Ritter!
1.222 fefe 295: Fixed asprintf (relied on vsnprintf(NULL,...) to return length but
296: don't write anything which was no longer the case. It also
297: allocated one byte unnecessarily, which Uwe Ohse found.
1.223 fefe 298: Fix ttyname (readlink does not \0-terminate, forgot to do that).
1.209 fefe 299:
1.193 fefe 300: 0.13:
1.194 fefe 301: add readdir64 and automatic mapping if _FILE_OFFSET_BITS == 64
1.199 fefe 302: make diet not include the linker safeguard stuff when preprocessing
1.207 fefe 303: Olaf: port to S/390!
1.196 leitner 304: me: fix vfork (it was put into dietlibc.a twice)
1.197 leitner 305: res_query did not initialize last
1.199 fefe 306: diet (not diet-dyn, of course) now adds -static to the gcc command line
1.198 leitner 307: fixed fflush on input streams (tic from ncurses exposed this)
1.199 fefe 308: duh, there is an alarm system call, too, so we use it and not setitimer
1.200 fefe 309: fix comparison in gmtime_r that caused Jan 1 to be converted to Dec 32.
1.201 fefe 310: rewrote __dtostr (it also has one more argument now)
1.205 fefe 311: Thanks to Erik Troan for bringing these to my attention:
1.204 fefe 312: make putenv behave like glibc (putenv("HOME") == unsetenv("HOME"))
313: fix strncat for the case where n == 0 (security implications?)
314: fix bsearch (it didn't find the very last element in the array, same
315: bug in both the C and the i386 assembly version).
1.205 fefe 316: fixed FNM_PATHNAME in fnmatch
1.204 fefe 317: fix brk (the syscall was documented incorrectly in the Linux man page)
318: Thanks, Thomas Ogrisegg!
1.205 fefe 319: added negated character classes to fnmatch (not required by POSIX)
1.206 fefe 320: make the utmp routines open utmp read-only if read-write doesn't work.
1.208 fefe 321: remove syscalls.c directory, it is obsolete now with unified syscalls
1.193 fefe 322:
1.164 fefe 323: 0.12:
324: more contributions from Frank Klemm.
1.165 fefe 325: iconv can now do UCS-2, too.
1.167 fefe 326: Imported several x86 assembly routines from Wouter van Kleunen.
1.166 fefe 327: Lots of bug fixes, and several more i386 specific versions of common
328: routines to make them smaller.
1.168 fefe 329: add memmem (a GNU extension that looks useful)
1.170 fefe 330: several changes from Michal Ludvig: inttypes.h gets C99 macros,
1.168 fefe 331: add pivot_root syscall, %n for *scanf.
1.169 fefe 332: add adjtimex (thanks, Laurent BERCOT)
1.171 fefe 333: add Frank Klemm's optimized md5
1.172 fefe 334: add -Os option to diet (see diet.1).
1.173 fefe 335: several IPv6 constants and HZ were missing, thanks Johannes Kloos.
1.174 fefe 336: add 32-bit uid/gid syscalls.
1.175 fefe 337: add rand48 (thanks, Johannes Kloos)
1.176 fefe 338: fixed a lot of bugs in getopt* (thanks, Johannes)
1.177 fefe 339: add strxfrm and tweak limits.h. glib-1.3.8 now compiles without changes.
340: add a few more module syscalls. modutils-2.4.9 now compiles without changes.
341: fix gethostent alias list termination. Major oops.
1.178 fefe 342: add execle and two DNS constants (from Johannes Kloos).
1.179 fefe 343: opendir did not close-on-exec (thanks, Laurent Bercot).
1.180 fefe 344: DNS will now properly signal errors and set h_errno.
345: A few more cleanups (thanks, Andreas Jabs and Matthias Andree).
1.181 fefe 346: Added an uber-cool linker safeguard feature! Idea by Matthias Andree.
347: If you enable WANT_SAFEGUARD in dietfeatures.h, diet will include an
348: external reference to a symbol that is only in the diet libc. So,
349: when you accidentally link a diet libc compiled object file against
350: glibc, the linker will barf. This will bloat your object files, but
351: you can remove all the references with "strip -R .note" from
352: the binaries in the end (which you should do anyway).
1.182 fefe 353: fix ARM unified syscall (select did not work).
1.183 fefe 354: add getpwent_r ala glibc and replace getpwent
355: do the same for getgrent and getspent
356: remove entlib (new code is smaller)
1.184 fefe 357: rewrite getserv* to use parselib (and provide ..._r, too)
1.185 fefe 358: add getpwnam_r and getpwuid_r
1.186 fefe 359: rewrite getproto* to use parselib (and protive ..._r, too)
1.187 fefe 360: Olaf muddled with the dynamic linker. It's a clean-room
361: implementation in the sense that it once worked for Olaf in a clean
362: room ;)
1.188 fefe 363: add if_nameindex and if_freenameindex.
364: fixed arm unified syscalls to work with current binutils (; is no
365: longer a line separator but starts a comment, switched to .macro)
1.189 fefe 366: changed all st_[cma]time types to signed long so comparisons against
367: LONG_MIN will work correctly. (GNU tar does this)
1.190 fefe 368: fixed two bugs regarding ungetc.
369: add getusershell, setusershell, endusershell (for vs_ftpd)
370: add prctl, dirfd (also for vs_ftpd)
1.191 fefe 371: fixed strftime (was completely hosed)
1.192 fefe 372: added real make install target
1.164 fefe 373:
1.115 fefe 374: 0.11:
375: fix major oops in DNS routines (only with WANT_FULL_RESOLV_CONF enabled).
1.116 fefe 376: fix vsscanf bug (Thanks, David Chappell).
1.117 fefe 377: add floor, ceil and memchr prototypes.
378: add __builtin_expect and expect #defines for gcc versions below 3.0
1.118 fefe 379: cleaner errno vs __errno_location handling
380: add placeholder iconv (iconv_open will always return EINVAL)
381: try to remove kernel 2.4 header dependency in IPv6 sockaddr_in6
382: initialization of getaddrinfo.
1.119 fefe 383: fix vsnprintf %X (printed lower case)
1.120 fefe 384: I wrote a new getopt. It appears to actually work (it is POSIX
385: compliant, it does not sort argv like the GNU version) and is only
386: a little over 300 bytes on x86.
1.121 fefe 387: Guillaume Cottenceau just wrote me that strncat should be even more
388: broken than it already is: it should append n bytes AND THEN \0!
389: I wonder how many programmers have produces off-by-one errors here...
1.122 fefe 390: Fix regexec offset return. autoconf now believes that diet libc has
391: POSIX regular expressions.
1.123 fefe 392: Fix fnmatch (a/b/* matched a/b/c/d even if FNM_PATHNAME was set)
1.124 fefe 393: Fix regular expression match for x* when there is no x at all.
1.125 fefe 394: Fix memory leak in error case in gethostbyname(2|). Thanks, Dietz Pröpper.
1.126 fefe 395: Add %h to vsnprintf.
1.127 fefe 396: Add FAQ.
1.128 fefe 397: Make %h work for signed numbers and add %hh to vsnprintf.
398: initgroups ignored the group argument :-(
399: remove printf references and nested functions from glob.
1.129 fefe 400: added an errno in libpthread that will display a prominent linker
401: warning.
1.131 fefe 402: started getting rid of kernel headers. Big task! :-(
1.130 fefe 403: add res_mkquery. The diet libc can now compile and link mtr.
1.132 olaf 404: Olaf: added a lot of code in libdl (not yet complete), changed the
405: startup code to make it work with his libdl and ld.so (needs still work
406: too)
1.134 fefe 407: __dns_readstartfiles only took the first domain or search path.
408: Thanks, Anthony de Boer
1.133 olaf 409: Olaf: added clone and a new unified_syscall for PowerPC
410: also dynlinker is now available (i386 only at this time)
1.135 fefe 411: crufted together a stdarg.h implementation from the various gcc headers.
1.136 fefe 412: implement getopt_long (ugh, the GNU people need professional help)
1.137 fefe 413: fixed word delimiters in regex (they looked for space, i.e. "," did
414: not work as delimiter)
1.138 fefe 415: errno.h now declares sys_errlist and sys_nerr.
1.143 fefe 416: added mkdtemp.
1.142 fefe 417: Uwe Ohse reported all of the following bugs:
418: ttyname should return 0 if !isatty.
419: realpath returns NULL if "." cannot be opened
420: putenv erroneously accepted (and mishandled) entries without "=".
421: popen returned 255 instead of 127 if /bin/sh could not be run.
422: fgetc did not set the internal EOF indicator on EOF.
423: bsearch contained an assumption about integer arithmetic overflow
424: behavior.
425: system did not set SIGCHLD and thus contained a race.
426: popen did not set close-on-exec and could leak an fd on malloc error.
1.147 fefe 427: daemon did not check whether open returns an fd below 3
428: perror did not save errno.
1.144 olaf 429: Olaf: Peter Jones reported some problems with perror; strerror had the
430: same problem.
431: Peter also posted a patch to atexit/exit. With some modifications it is
432: now implemented.
1.145 fefe 433: Unbuffered stdio and ungetc can no longer be disabled. I will try to
434: implement part of it using ELF weak symbols.
1.146 fefe 435: Added minimal sysconf (tehe) from David Chappell.
1.148 fefe 436: Added overflow handling for strtoul and strtol.
1.149 fefe 437: Added WANT_ETC_HOSTS in dietfeatures.h and made gethostbyname/2 use
438: it before falling back to DNS if enabled.
1.150 fefe 439: Added a littie backwards compatibility cruft for gpm (man, do these
440: sources stink!)
1.151 fefe 441: Added openpty.
1.152 fefe 442: Squeeze a few bytes off the is* routines, courtesy of Peter Jones.
1.154 fefe 443: Fix fseek return value.
1.155 fefe 444: Add dirname and basename.
1.156 fefe 445: Add a few i386 math routines contributed by Frank Klemm.
1.157 fefe 446: Fixed getservent (did not allow _ and - in the aliases).
447: Thanks, Oden Eriksson
1.158 fefe 448: Added a float.h so configure believes we have ANSI header files.
449: Fix a lot more stdio bugs that Uwe Ohse pointed out.
1.162 fefe 450: Olaf: has added a new scanf and printf core that is suitable for all
1.159 olaf 451: scanf and printf function implementations
1.160 fefe 452: Imported a few more functions and optimizations from Frank Klemm (he
453: also rewrote dtostr to have more precision)
1.161 olaf 454: Olaf: checked in a new sig* function family (based on rt_sig*).
455: legacy <2.2 signal-handling doesn't work at the moment.
1.163 fefe 456: Made rudimentary iconv that can convert back and forth between
457: iso-8859-1, utf-8 and ucs-4 (for debugging).
458: Thanks to Markus Kuhn for the excellent utf-8(7)!
1.115 fefe 459:
1.74 fefe 460: 0.10:
461: update getpagesize.
462: add personality.
1.75 fefe 463: add "%*s" and "%*.*s" support to vsnprintf.
1.76 fefe 464: add putchar (apparently arm-linux-gcc will substitute printf("\n")
465: with putchar('\n') behind your back...?!
1.77 fefe 466: import include/scsi/ from glibc.
1.78 fefe 467: add iopl.
1.80 fefe 468: add execl and sigdelset prototypes.
469: add getopt_long stuff to getopt.h (may compile but won't link).
1.81 fefe 470: add RPC headers (no code yet).
1.82 fefe 471: add mlockall, munlockall
1.83 fefe 472: make "diet gcc foo.c" work.
473: added Sun RPC code and removed as many warnings as possible in a
474: heroic act of self-mutilation.
475: added getproto* and getdtablesize for the RPC cruft :-(
1.84 fefe 476: added getpass. mount from util-linux actually compiles now!
477: fix the sig*set routines. mount actually works now *bg*
478: fix fwrite dividing by zero when trying to fwrite n records of size 0.
1.85 fefe 479: added an initial regex implementation (3500 bytes!!!).
1.87 fefe 480: add llseek and lseek64 with optional lseek fall-back.
1.88 fefe 481: add res_init.
482: add asprintf (ugh, what an ugly function).
1.89 fefe 483: expanded arpa/nameser.h to include backwards compatibility defines
1.90 fefe 484: add ut_name alias to ut_host in struct utmp.
485: add inet_ntop, inet_pton, gethostbyname2.
1.92 fefe 486: add sysinfo, recvmsg, sendmsg.
1.93 fefe 487: add endmntent, getmntent, setmntent.
1.94 fefe 488: fix fnmatch (thanks, Guillaume Cottenceau!)
1.96 fefe 489: add setenv.
490: remove __restrict from mntent.h, add __restrict__ removal alias for
491: older gcc versions in sys/cdefs.h.
492: add rlim_t, sig_atomic_t declarations.
493: add sigsetjmp #define for __sigsetjmp (oops).
494: (Thanks to Chris Siebenmann for these three bug reports)
1.97 fefe 495: add a gruesome hack to printf floating point to accept %f and kludge
496: together support for %.2f. Don't look at the code, please!
1.98 fefe 497: fixed tcsetpgrp (oops, this is embarassing! Thanks, Chris Siebenmann)
1.99 fefe 498: imported fix for entlib by Jeff Garzik.
1.100 fefe 499: add glob implementation from Guillaume Cottenceau (Thanks!!)
500: add libdl fragments from Olaf (Yeah! One step closer to dynamic linking!)
1.101 fefe 501: add REG_ICASE and word start/end handling to my regular expressions.
502: my regular expressions now actually match substrings (i.e. "foobar" to "bar").
1.102 fefe 503: wrap getcwd to comply to man page (the syscall returns the number of
504: bytes, not the buffer)
505: add realpath.
1.103 fefe 506: fix vfprintf.
1.104 fefe 507: fix *scanf %s zero termination.
508: add abs, labs, llabs.
1.105 fefe 509: add <sys/io.h>, ioperm syscall.
510: add flock to <sys/file.h>
1.106 fefe 511: fixes to bsearch and the regular expressions.
1.107 fefe 512: add fake herror.
1.108 fefe 513: add scandir and alphasort.
1.109 fefe 514: add killpg
1.110 fefe 515: implemented a gross hack to make libpthread compile when
516: dietfeatures.h does not define WANT_THREAD_SAFE (it's empty then).
1.111 fefe 517: add getaddrinfo and freeaddrinfo (man, what a fucked up interface!)
1.112 fefe 518: fix sigsuspend (syscall had completely fscked up arguments!)
1.113 fefe 519: RLIM_INFINITY from the kernel is broken. Thanks to Chris Siebenmann
520: for sending a patch.
1.114 fefe 521: add getserv*.
522: add WANT_FULL_RESOLV_CONF so that the DNS routines use "domain" and
523: "search" from resolv.conf.
1.74 fefe 524:
1.73 fefe 525: 0.9:
1.65 fefe 526: fixed initgroups (oops)
1.66 fefe 527: Cleanup appending file open for stdio (thanks, James Antill)
528: imported vfprintf fix from James Antill.
1.67 fefe 529: add fnmatch
530: change index, rindex and bcmp as weak ELF symbols (were #defined before)
1.68 fefe 531: Olaf added character classes to *scanf.
1.69 fefe 532: Put object and library files into a separate directory (bin-$ARCH).
533: Add "cross" make target to make all architectures.
534: Add "diet" program and man page.
1.70 fefe 535: Add getgrnam, getgrgid
1.71 fefe 536: Add cfmakeraw (Thanks, Antonio Musumeci)
1.72 fefe 537: localtime won't call gettimeofday when the tzfile parser is used.
1.65 fefe 538:
1.64 fefe 539: 0.8:
1.34 fefe 540: vsnprintf(0,...) estimated the length of strings with a padding width
541: incorrectly.
1.35 fefe 542: new reboot() from Olaf.
1.36 fefe 543: added prototypes for getsockopt and setsockopt.
1.39 fefe 544: added experimental sem* and shm*
1.38 fefe 545: define EXIT_SUCCESS and EXIT_FAILURE
1.40 fefe 546: added setvbuf (only changes mode, not buffer)
1.41 fefe 547: added dietwarning.h (woohoo, linker warnings!) and used it to warn of
548: insecurity (system, sprintf) or bloat (printf and stdio).
1.42 fefe 549: added qsort() and bsearch(). Benchmark on 1000 random ints:
550: glibc: 679414 cycles qsort and 3352 cycles bsearch
551: diet libc: 300010 cycles qsort, 553 cycles bsearch
552: I have no idea why glibc is so slow.
1.43 fefe 553: added __isnan (references by libm.a from glibc).
554: added popen() and pclose(). Now the diet libc can link slsh (from
555: S-Lang!)
1.44 fefe 556: corrected usleep. It was more of an msleep until now.
1.45 fefe 557: corrected __dtostr (it looped when trying to format "0.0").
558: several fixes to stdio (thanks to S-Lang's excellent test suite!)
1.46 fefe 559: added ungetc (does it work?)
1.47 fefe 560: added inet_aton (yuck!)
1.50 fefe 561: added gethostbyname, gethostbyaddr, gethostbyname_r and gethostbyaddr_r
1.48 fefe 562: added h_errno and __h_errno_location
563: added inet_ntoa
1.49 fefe 564: added setpgrp and getpgrp, strsignal and execv (thanks, Olaf)
1.51 fefe 565: add bcopy, index, rindex macros
566: add isgraph and isxdigit
1.52 fefe 567: add strftime (ugh!!!)
1.53 olaf 568: Olaf fixed strftime, gmtime_r leap year bug.
1.54 fefe 569: Jeff Garzik contributed a spec file. I put it in contrib and hope
570: everbody knows what to do with it...
571: Olaf checked in a ton of libpthread stuff.
1.55 fefe 572: added mkstemp using /dev/urandom (harder to guess than getpid()).
1.56 fefe 573: add large file backwards compatibility support (so gzip will run on
574: kernel 2.2 and 2.0)
1.57 fefe 575: added shutdown
1.58 fefe 576: added nice
577: added pseudo-locale support for is* (they are now weak aliases,
578: isupper -> __isupper_ascii etc). So, for example, liblatin1 can
579: overwrite the default is* functions.
1.59 fefe 580: added liblatin1.a
1.60 fefe 581: added tzfile implementation (does it work for anyone else?)
1.61 fefe 582: added syslog(3) (thanks to Rene Müller!)
1.62 fefe 583: Jeff Garzik contributed getgr*, getpw* and getsp* in one tiny package.
584: Thanks!
1.63 fefe 585: merged duplicate code in execv and execvp into exec_lib.o
1.34 fefe 586:
1.21 fefe 587: 0.7.2:
588: added several prototypes to already implemented functions and
589: <sys/reboot.h>. Thanks for Abraham for pointing this out.
1.22 fefe 590: added prototypes for process group and dup syscalls. Thanks to
591: Abraham again. He also contributed an implementation for daemon(),
592: an ugly BSD hack. I decided to diversify the lib/ directory a
593: little and now created a libugly/ directory for stuff like system()
594: and daemon() ;-)
595: added libstdio and moved all that stdio crap from lib/ there. The
596: idea is to start separating now what we will separate for shared
597: libraries anyway.
1.26 fefe 598: optimized x86 unified-syscall by Olaf.
1.27 fefe 599: added limits.h, removed __ARCHBITS from endian.h (use __WORDSIZE from
600: limits.h instead)
601: added remove.c and enough cruft to limits.h to make it compile lzo,
602: lzop and bzip2.
1.28 fefe 603: added mktime, asctime_r, asctime and ctime (needed for gzip).
604: Someone will need to implement a reader for the glibc localtime file
1.31 fefe 605: format some day (man tzfile, ugh!) :-(
1.29 fefe 606: added unlink prototype to unistd.h.
607: added gmtime and gmtime_r.
1.31 fefe 608: fixed sparc unified syscall error handling (please upgrade!).
1.30 fefe 609: removed readdir glibc compatibility cruft.
1.31 fefe 610: removed stat glibc compatibility cruft.
1.32 fefe 611: oops, my fread was broken for pipes.
1.33 fefe 612: Olaf found a bug in pipe() for sparc, too.
1.21 fefe 613:
1.9 fefe 614: 0.7.1:
1.11 fefe 615: optimized away the static arrays from __ltostr and __lltostr.
616: optimized away the static arrays (and more!) from strtoul and strtoull.
617: added system (by Olaf).
1.12 fefe 618: added tolower and toupper
1.13 fefe 619: added getopt from Olaf (~600 bytes on x86!)
1.14 fefe 620: added clone for mips (by Olaf).
621: fixed longjmp and setjmp on sparc not to require glibc include files.
1.15 olaf 622: added pause for all (by Olaf).
1.17 fefe 623: added __attribute__ ((__const__)) to ctype.h
1.16 fefe 624: added isupper and islower.
625: added putc and putchar as macros.
1.17 fefe 626: added strcasecmp and strncasecmp (thanks to Abraham vd Merwe for
627: insightful discussions and patches I partially used for the last three)
1.18 fefe 628: added getpriority and setpriority (also by Abraham)
1.19 fefe 629: oops, I broke strtoul in a recent optimization attempt.
1.20 fefe 630: oi, setjmp and longjmp were broken on other platforms, too!
631: Thanks to Sébastien Côté for reporting this.
1.9 fefe 632:
633: 0.7:
1.6 olaf 634: clone support for i386,alpha,arm and sparc by Olaf.
1.1 cvs 635: Initial dynamic loading glue for i386, also by Olaf.
636: We don't have a dynamic loader yet, so this is not yet usable.
637: added readv, sigdelset, sigaltstack, sigfillset, sigismember, usleep,
638: vsprintf, writev, all by Olaf.
1.2 fefe 639: imported readdir fix from Guillaume. Mhh, can the kernel interface
640: really be this broken?
1.3 fefe 641: Found a kludgy way to detect whether the kernel includes define struct
642: stat64 (they also define STAT64_HAS_BROKEN_ST_INO). If this does
643: not work for you, please tell me!
1.4 fefe 644: Removed bogus __seek_types enum, it's a bunch of #defines now.
1.7 fefe 645: Fixed stdio line buffering. The code was already there but I forgot
646: to mark stdio and stdout as line buffered. This should really be
647: done dynamically using isatty, though.
1.8 fefe 648: Removed superfluous "if (1)" in execvp.c
1.1 cvs 649:
650: 0.6.14:
651: *scanf did not append the 0 byte for %s.
652: added creat and changed creat to call open directly instead of open64.
653: did for fread what 0.6.10 did for fwrite.
654: repaired buffered stdio a little (line buffering is still not
655: supported).
656: [All of these bugs have been reported by Guillaume. Thanks!]
657: added __pure__ to strchr and strrchr in <string.h>
658:
659: 0.6.13:
660: included COPYING to make clear that the diet libc is covered by the
661: GNU General Public License (and _not_ the LGPL). That means that
662: you need to obtain a license from me if you want to use the diet
663: libc in a proprietary program that you want to distribute.
664: The x86 unified syscall swapped arguments #4 and #5 and noone
665: noticed until now! Thanks to Guillaume Cottenceau for reporting
666: this!
667: The malloc had a subtle bug with small allocations that could cause
668: segfault. Guillaume reported it, Olaf fixed it.
669:
670: 0.6.12:
671: added assert, statfs and fstatfs
672: added include/net/if.h so fget compiles again.
673:
674: 0.6.11:
675: added putenv.
676:
677: 0.6.10:
678: fixed fwrite. It returned the number of bytes written, not the number
679: of records. Thanks to Albert D. Cahalan for pointing this out.
680: fixed fgets. It returned EOF on empty lines. Thanks, Erik Frey.
681: added brk and sbrk. harold@nb.com.sg made me do it.
682:
683: 0.6.9:
684: fixed execvp not to return on ENOENT
685: did for {open|read|close|seek|tell}dir what I did for stat before.
686: The glibc compatibility part is currently non-functional.
687: fixed white space handling in sscanf " (" would not match " (".
688: fixed printf to accept 'l' flag.
689: fixed getpwuid (ignored last line)
690:
691: 0.6.8:
692: Olaf contributed initial thread-safe syscalls for i386, alpha, sparc,
693: mips and arm. I did the one for ppc. They can be enabled in dietfeatures.h.
694: added strlcpy and strlcat from OpenBSD.
695: added stat64, fstat64 and lstat64.
696: added endian.h and made ending of strlen.c endianness-aware
697: added string routines size tweak to dietfeatures.h. Most of the
698: string routines have been unrolled. This is up to three times as
699: fast but creates up to three times larger code. Now you can disable
700: the unrolling.
701: added sendfile.
702: I also added pread. It works on x86 and sparc but not on ppc and mips.
703: I have no idea what's going on. strace disagrees with the kernel.
704: Can anyone help? I asked the Linux kernel mailing list for help, too.
705: added a few aliases of the type __libc_open for open. nm on
706: libpthreads.so indicates that we will need them.
707:
708: 0.6.7:
709: the sources now compile without warnings with -Wall.
710: printf now prints "(null)" when %s is passed NULL. This can be
711: removed with WANT_NULL_PRINTF in dietfeatures.h
712: added vfprintf, execl, ttyname.
713: stat, lstat and fstat are now #defined to __dietstat, __dietlstat and
714: __dietfstat so they can use the normal kernel struct stat.
715: stat, lstat and fstat are now C wrappers that convert to the glibc
716: struct stat. So we can avoid that overhead for programs that use
717: dietlibc headers.
718:
719: 0.6.6:
720: changed the Makefiles so you can now set CFLAGS on the command line
721: added memccmp (analogous to memccpy) and strncmp.
722: Olaf fixed another bug in the sparc unified syscall.
723: Paul Clifford contributed a C version of his strlen.S that is much
724: more efficient than the previous strlen on all platforms! It also
725: looks like technology from Roswell. ;-}
726: added a "real" stdio. Well, almost. Please contribute!
727: added dietfeatures.h so you can remove features you don't need.
728: removed debug code from vsnprintf that changed \0 to ' ' (argh!).
729: stdio now works with simple programs and minigzip from libz.
730: stdio uses some major trickery to avoid linking the stdio, stderr and
731: stdout (and reserving space for them) when they are not used.
732:
733: 0.6.5:
734: Red Plait <redplait@ixcelerator.com> found several bugs in diet libc,
735: most of them bugs in the new header files, but also missing sigset
736: functions.
737: Paul Clifford contributed an assembly strlen.S for ARM and fixed
738: several bugs.
739: Fixed ppc/setjmp and mips/pipe.
740: Olaf contributed a new sparc unified syscall.
741:
742: 0.6.4:
743: declared is* static inline in getservent.
744: added assert_fail, strtoul, isalpha, isdigit, isalnum, isascii.
745: changed strlen to return 0 when passed NULL.
746: new, much smaller unified syscall for MIPS. Thanks to Olaf the Mad
747: Scientist who actually implemented this without access to a MIPS
748: box, just from reading the architecture manual. And it worked out
749: of the box.
750: started a set of system includes, mainly so that I can use lcc and
751: my alpha-linux cross compiler (which is unable to cross-compile
752: glibc). diet libc can now be compiled without any include files
753: from a normal libc. The includes do declare more than diet libc
754: currently delivers and they are still far from complete for real
755: applications.
756: I will only add assembly versions that are smaller _and_ faster than
757: the C version. Larger routines are only accepted if they are called
758: very often and are substantially faster.
759: added i386 assembly strchr, which is smaller and faster than the old
760: version. It is, however, larger than the version contributed by
761: proton (thanks, anyway).
762: added i386 strlen (31% faster, 14% smaller)
763: "make t" will now create a map file called "mapfile".
764:
765: 0.6.3:
766: added sys_errlist, strerror and perror
767: added isblank
768: added atol
769:
770: 0.6.2:
771: mmap for ARM didn't compile. Thanks, Paul!
772:
773: 0.6.1:
774: split mmap into the architecture specific subdirectories.
775: getenv now copes with environ==NULL, thanks Paul Clifford.
776: Paul also contributed a smaller ARM startup code.
777:
778: 0.6:
779: strcat returned the wrong result. Thanks, Dietz Pröpper.
780: strtod now understands a negative exponent (oops, thanks Bertram Barth)
781: Port to arm-linux-gnu, but on the Netwinder I use for testing the
782: __dtostr does not work (I have no idea why!)
783: The MIPS port now uses (much smaller) non-PIC code. That means that
784: the applications you link against diet libc also have to be compiled
785: non-PIC. I suggest copying the CFLAGS from the diet libc Makefile.
786: Thanks to Ralf Bächle for helping me with this!
787: I made subdirectories for the architectures and use VPATH to override
788: VPATH so that make finds the source file automatically. That should
789: simplify the sources greatly.
790: Olaf Dreesen contributed Alpha support including setjmp and longjmp!
791: ARM and MIPS now also have setjmp and longjmp
792: "compile" and "load" are now make targets. Use them for djb programs.
793: added contrib/elftrunc.c which will remove unnecessary ELF headers.
794: Again, contributed from Olaf. Great work!
795:
796: 0.5.12:
797: printf also does signed numbers.
798: If you don't use atexit, dietlibc now does not link exit, only _exit.
799: *printf now correctly returns the number of bytes written.
800: Olaf contributed experimental sscanf and vsscanf implementations.
801: If passed NULL as buffer, snprintf will not write anything but still
802: return the number of bytes it would have written.
803: Initial MIPS port! (Oh, the agony!)
804: No setjmp and longjmp support yet! Please contribute!
805: I even implemented unified syscalls for MIPS. Still, MIPS code is
806: almost twice the size of SPARC code. If anyone knows why: please
807: tell me!
808:
809: 0.5.11:
810: I implemented new unified syscalls for x86, sparc and ppc, this time based
811: on .s files and not .c files, and I moved the syscalls into
812: subdirectores to clean the dietlibc sources up a little.
813: A binary consisting of printf("%s is %d\n","olaf",23) is now
814: 2864 bytes on sparc
815: 2488 bytes on intel
816: I kludgily implemented fprintf(stdout,... and fprintf(stderr,...
817: to make a few more applications work.
818: Olaf Dreesen also implemented some unified syscall stuff for x86.
819: He discovered that with our unified syscall interface it actually
820: costs <10 bytes total to make all system calls thread safe!
821: I implemented atexit() (can register up to 4 callbacks).
822: I implemented strtod and __dtostr (the opposite). Now we can add
823: floating point support to vsnprintf and sscanf!
824:
825: 0.5.10:
826: I actually saw that I can not only merge the errno handling code of
827: the system calls on x86, I can also merge the rest (including the
828: arguments) except for setting the system call number. All those
829: system calls are now just a jump to a unified system call handler.
830: I got rid of x86openclose again. The savings are substantial:
831: chown from embutils went from 7664 to 7184 bytes!
832: If I'd move the system call wrappers to assembly language, I could
833: even reduce the alignment (does not matter since it's just a jump
834: anyway) and get rid of the "ret" behind each jump (one byte per
835: system call!)
836:
837: 0.5.9:
838: added memchr, strpbrk, strstr, strtol, isspace (hehe)
839: fixed strdup
840: fixed return values for strcpy and strcat (thanks to Norbert Berzen)
841: Olaf Dreesen contributed a strtol and initial {sn|vsn|}printf implementation
842: (no signed integers, only strings and unsigned integers (but
843: supporting octal, hex and decimal). Thanks, Olaf! (by the way:
844: that code must be wonderful, I don't understand it at all *bg*)
845: Olaf's printf does understand padding like in "%08d" and "%8d" and
846: automatically pads pointers with '0'.
847: Rewrote the x86 start code, old: 22 instructions, new: 12 instructions.
848: Thanks to proton for inspiration on this.
849: The new x86 start code also does not reference exit any more, thus saving
850: 64 bytes for executables that don't call exit explicitly.
851: [insert maniacal laughter] EVERY BYTE COUNTS!1!! ;-)
852: Moved errno and environ to start.S, saving no byte binary size but
853: speeding up compilation and slightly shortening dietlibc.a ;-)
854: For x86: joined open and close into one assembler file, sharing the
855: errno handling. This is a feasibility test and it actually saves a
856: few bytes. I think I will reimplement the _syscall[1-6] macros on
857: all platforms now to share the errno handling code for them.
858:
859: 0.5.8:
860: fixed strchr to be able to look for 0.
861:
862: added _llseek, ftruncate, getpgid, getresgid, getresuid, getsid,
863: memccpy, memmove, mprotect, setregid, setresgid, setresuid, setreuid,
864: strncpy, swapon, truncate, strtok, strtok_r, strspn, strcspn (all
865: contributed by Olaf Dreesen)
866:
867: added execvp, getcwd
868:
869: fixed __xmknod
870:
871: Note: can it be that the ftw interface really is so broken that I
872: cannot implement it without having to implement some searching data
873: structure? I included an experimental ftw implementation that will
874: not follow symlinks.
875:
876: 0.5.7:
877: oops, if_nametoindex was broken!
878:
879: 0.5.6:
880: ported to ppc-linux.
881: fixed i386 sigsetjmp (I mistyped the function name)
882: included sigjmp.c
883:
884: 0.5.5:
885: added wait, sys_siglist, longjmp/setjmp/sigsetjmp for i386 and sparc
886: actually, it wasn't fork that wasn't working for sparc, it was pipe.
887: I fixed it now.
888: dietlibc/SPARC assumes -msupersparc (does not provide div, mul, etc)
889: fixed readdir to use getdents and not the intel inline asm
890:
891: 0.5.4:
892: ported to sparclinux (sparc32 only). Beware: does not work yet.
893: added raise, abort, readlink, strcat, geteuid, geteuid, wait3, access
894:
895: 0.5.3:
896: added tcsetattr and getenv to compile e3
897:
898: 0.5.2:
899: added vhangup, tcgetattr, isatty and memcmp for fgetty
900: (http://www.fefe.de/fgetty/)
901: added localtime from uC-libc.
902:
903: 0.5.1:
904: stat and friends actually work now. Yuck! Another case of
905: translation between kernel and userland. Why can't the kernel
906: people and the libc people simply agree on a standard?
907: removed many unnecessary includes to speed up compilation.
908: added -fomit-frame-pointer and i386 compilation target to reduce code size.
909: inlined socketcall to reduce code size.
910: "load" and "compile" are examples for djb code.
911:
912: 0.5:
913: Olaf Dreesen contributed a much smaller implementation of malloc and friends.
914: each object file is now treated with "strip -x -R .note -R .comment"
915: split each system call into a separate object file
916: added ntohs, htons, alarm, if_indextoname and if_nametoindex
917:
918: 0.4.1:
919: oops, the strchr implementation was wrong. Thanks Jens Laas!
920:
921: 0.4:
922: copied opendir and friends from uC-libc.
923: added getservent and getservby* in gerservent.c
924:
925: 0.3:
926: remove readdir system call
927: added getdents system call
928: added getpwnam/getpwuid implementation in getpwnam.c
929: added a few string functions (in str*.c)
930:
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