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